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/* Component.java -- a graphics component |
/* Component.java -- a graphics component |
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Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation |
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation |
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This file is part of GNU Classpath. |
This file is part of GNU Classpath. |
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obligated to do so. If you do not wish to do so, delete this |
obligated to do so. If you do not wish to do so, delete this |
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exception statement from your version. */ |
exception statement from your version. */ |
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package java.awt; |
package java.awt; |
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import java.awt.dnd.DropTarget; |
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import java.awt.event.ComponentEvent; |
import java.awt.event.ComponentEvent; |
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import java.awt.event.ComponentListener; |
import java.awt.event.ComponentListener; |
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import java.awt.event.FocusEvent; |
import java.awt.event.FocusEvent; |
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import java.awt.event.MouseEvent; |
import java.awt.event.MouseEvent; |
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import java.awt.event.MouseListener; |
import java.awt.event.MouseListener; |
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import java.awt.event.MouseMotionListener; |
import java.awt.event.MouseMotionListener; |
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import java.awt.event.MouseWheelListener; |
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import java.awt.event.MouseWheelEvent; |
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import java.awt.event.PaintEvent; |
import java.awt.event.PaintEvent; |
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import java.awt.im.InputContext; |
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import java.awt.im.InputMethodRequests; |
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import java.awt.image.BufferStrategy; |
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import java.awt.image.ColorModel; |
import java.awt.image.ColorModel; |
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import java.awt.image.ImageObserver; |
import java.awt.image.ImageObserver; |
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import java.awt.image.ImageProducer; |
import java.awt.image.ImageProducer; |
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import java.awt.image.VolatileImage; |
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import java.awt.peer.ComponentPeer; |
import java.awt.peer.ComponentPeer; |
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import java.awt.peer.LightweightPeer; |
import java.awt.peer.LightweightPeer; |
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import java.beans.PropertyChangeListener; |
import java.beans.PropertyChangeListener; |
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import java.beans.PropertyChangeSupport; |
import java.beans.PropertyChangeSupport; |
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import java.io.ObjectInputStream; |
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import java.io.IOException; |
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import java.io.ObjectOutputStream; |
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import java.io.PrintStream; |
import java.io.PrintStream; |
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import java.io.PrintWriter; |
import java.io.PrintWriter; |
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import java.io.Serializable; |
import java.io.Serializable; |
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import java.lang.reflect.Array; |
import java.lang.reflect.Array; |
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import java.util.Collections; |
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import java.util.EventListener; |
import java.util.EventListener; |
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import java.util.HashSet; |
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import java.util.Iterator; |
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import java.util.Locale; |
import java.util.Locale; |
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import java.util.ResourceBundle; |
import java.util.Set; |
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import java.util.Vector; |
import java.util.Vector; |
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import javax.accessibility.Accessible; |
import javax.accessibility.Accessible; |
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import javax.accessibility.AccessibleComponent; |
import javax.accessibility.AccessibleComponent; |
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import javax.accessibility.AccessibleContext; |
import javax.accessibility.AccessibleContext; |
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import javax.accessibility.AccessibleRole; |
import javax.accessibility.AccessibleRole; |
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import javax.accessibility.AccessibleState; |
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import javax.accessibility.AccessibleStateSet; |
import javax.accessibility.AccessibleStateSet; |
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/** |
/** |
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* The root of all evil. |
* The root of all evil. All graphical representations are subclasses of this |
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* giant class, which is designed for screen display and user interaction. |
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* This class can be extended directly to build a lightweight component (one |
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* not associated with a native window); lightweight components must reside |
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* inside a heavyweight window. |
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* |
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* <p>This class is Serializable, which has some big implications. A user can |
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* save the state of all graphical components in one VM, and reload them in |
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* another. Note that this class will only save Serializable listeners, and |
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* ignore the rest, without causing any serialization exceptions. However, by |
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* making a listener serializable, and adding it to another element, you link |
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* in that entire element to the state of this component. To get around this, |
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* use the idiom shown in the example below - make listeners non-serializable |
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* in inner classes, rather than using this object itself as the listener, if |
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* external objects do not need to save the state of this object. |
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* |
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* <p><pre> |
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* import java.awt.*; |
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* import java.awt.event.*; |
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* import java.io.Serializable; |
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* class MyApp implements Serializable |
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* { |
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* BigObjectThatShouldNotBeSerializedWithAButton bigOne; |
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* // Serializing aButton will not suck in an instance of MyApp, with its |
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* // accompanying field bigOne. |
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* Button aButton = new Button(); |
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* class MyActionListener implements ActionListener |
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* { |
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* public void actionPerformed(ActionEvent e) |
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* { |
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* System.out.println("Hello There"); |
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* } |
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* } |
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* MyApp() |
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* { |
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* aButton.addActionListener(new MyActionListener()); |
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* } |
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* } |
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* |
* |
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* Status: Incomplete. The event dispatch mechanism is implemented. All |
* <p>Status: Incomplete. The event dispatch mechanism is implemented. All |
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* other methods defined in the J2SE 1.3 API javadoc exist, but are mostly |
* other methods defined in the J2SE 1.3 API javadoc exist, but are mostly |
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* incomplete or only stubs; except for methods relating to the Drag and |
* incomplete or only stubs; except for methods relating to the Drag and |
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* Drop, Input Method, and Accessibility frameworks: These methods are |
* Drop, Input Method, and Accessibility frameworks: These methods are |
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public abstract class Component |
public abstract class Component |
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implements ImageObserver, MenuContainer, Serializable |
implements ImageObserver, MenuContainer, Serializable |
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{ |
{ |
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// Word to the wise - this file is huge. Search for '\f' (^L) for logical |
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// sectioning by fields, public API, private API, and nested classes. |
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/** |
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* Compatible with JDK 1.0+. |
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*/ |
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private static final long serialVersionUID = -7644114512714619750L; |
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/** |
/** |
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* Constant returned by the <code>getAlignmentY</code> method to indicate |
* Constant returned by the <code>getAlignmentY</code> method to indicate |
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* that the component wishes to be aligned to the bottom relative to |
* that the component wishes to be aligned to the top relative to |
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* other components. |
* other components. |
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* |
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* @see #getAlignmentY() |
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*/ |
*/ |
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public static final float BOTTOM_ALIGNMENT = (float)1.0; |
public static final float TOP_ALIGNMENT = 0; |
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/** |
/** |
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* Constant returned by the <code>getAlignmentY</code> and |
* Constant returned by the <code>getAlignmentY</code> and |
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* <code>getAlignmentX</code> methods to indicate |
* <code>getAlignmentX</code> methods to indicate |
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* that the component wishes to be aligned to the center relative to |
* that the component wishes to be aligned to the center relative to |
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* other components. |
* other components. |
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* |
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* @see #getAlignmentX() |
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* @see #getAlignmentY() |
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*/ |
*/ |
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public static final float CENTER_ALIGNMENT = (float)0.5; |
public static final float CENTER_ALIGNMENT = 0.5f; |
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/** |
/** |
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* Constant returned by the <code>getAlignmentY</code> method to indicate |
* Constant returned by the <code>getAlignmentY</code> method to indicate |
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* that the component wishes to be aligned to the top relative to |
* that the component wishes to be aligned to the bottom relative to |
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* other components. |
* other components. |
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* |
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* @see #getAlignmentY() |
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*/ |
*/ |
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public static final float TOP_ALIGNMENT = (float)0.0; |
public static final float BOTTOM_ALIGNMENT = 1; |
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/** |
/** |
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* Constant returned by the <code>getAlignmentX</code> method to indicate |
* Constant returned by the <code>getAlignmentX</code> method to indicate |
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* that the component wishes to be aligned to the right relative to |
* that the component wishes to be aligned to the right relative to |
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* other components. |
* other components. |
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* |
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* @see #getAlignmentX() |
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*/ |
*/ |
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public static final float RIGHT_ALIGNMENT = (float)1.0; |
public static final float RIGHT_ALIGNMENT = 1; |
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/** |
/** |
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* Constant returned by the <code>getAlignmentX</code> method to indicate |
* Constant returned by the <code>getAlignmentX</code> method to indicate |
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* that the component wishes to be aligned to the left relative to |
* that the component wishes to be aligned to the left relative to |
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* other components. |
* other components. |
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* |
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* @see #getAlignmentX() |
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*/ |
*/ |
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public static final float LEFT_ALIGNMENT = (float)0.0; |
public static final float LEFT_ALIGNMENT = 0; |
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/* Make the treelock a String so that it can easily be identified |
/** |
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in debug dumps. We clone the String in order to avoid a conflict in |
* Make the treelock a String so that it can easily be identified |
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the unlikely event that some other package uses exactly the same string |
* in debug dumps. We clone the String in order to avoid a conflict in |
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as a lock object. */ |
* the unlikely event that some other package uses exactly the same string |
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static Object treeLock = new String("AWT_TREE_LOCK"); |
* as a lock object. |
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*/ |
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static final Object treeLock = new String("AWT_TREE_LOCK"); |
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/* Serialized fields from the serialization spec. */ |
// Serialized fields from the serialization spec. |
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// FIXME: Default values? |
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/** |
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* The x position of the component in the parent's coordinate system. |
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* |
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* @see #getLocation() |
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* @serial the x position |
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*/ |
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int x; |
int x; |
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/** |
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* The y position of the component in the parent's coordinate system. |
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* |
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* @see #getLocation() |
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* @serial the y position |
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*/ |
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int y; |
int y; |
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/** |
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* The component width. |
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* |
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* @see #getSize() |
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* @serial the width |
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*/ |
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int width; |
int width; |
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/** |
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* The component height. |
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* |
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* @see #getSize() |
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* @serial the height |
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*/ |
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int height; |
int height; |
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/** |
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* The foreground color for the component. This may be null. |
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* |
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* @see #getForeground() |
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* @see #setForeground(Color) |
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* @serial the foreground color |
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*/ |
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Color foreground; |
Color foreground; |
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/** |
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* The background color for the component. This may be null. |
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* |
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* @see #getBackground() |
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* @see #setBackground(Color) |
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* @serial the background color |
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*/ |
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Color background; |
Color background; |
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/** |
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* The default font used in the component. This may be null. |
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* |
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* @see #getFont() |
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* @see #setFont(Font) |
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* @serial the font |
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*/ |
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Font font; |
Font font; |
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/** |
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* The font in use by the peer, or null if there is no peer. |
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* |
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* @serial the peer's font |
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*/ |
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Font peerFont; |
Font peerFont; |
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/** |
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* The cursor displayed when the pointer is over this component. This may |
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* be null. |
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* |
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* @see #getCursor() |
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* @see #setCursor(Cursor) |
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*/ |
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Cursor cursor; |
Cursor cursor; |
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/** |
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* The locale for the component. |
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* |
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* @see #getLocale() |
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* @see #setLocale(Locale) |
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*/ |
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Locale locale; |
Locale locale; |
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boolean visible = true; // default (except for Window) |
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/** |
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* True if the object should ignore repaint events (usually because it is |
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* not showing). |
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* |
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* @see #getIgnoreRepaint() |
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* @see #setIgnoreRepaint(boolean) |
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* @serial true to ignore repaints |
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* @since 1.4 |
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*/ |
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boolean ignoreRepaint; |
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/** |
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* True when the object is visible (although it is only showing if all |
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* ancestors are likewise visible). For component, this defaults to true. |
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* |
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* @see #isVisible() |
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* @see #setVisible(boolean) |
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* @serial true if visible |
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*/ |
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boolean visible = true; |
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/** |
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* True if the object is enabled, meaning it can interact with the user. |
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* For component, this defaults to true. |
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* |
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* @see #isEnabled() |
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* @see #setEnabled(boolean) |
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* @serial true if enabled |
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*/ |
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boolean enabled = true; |
boolean enabled = true; |
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/** |
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* True if the object is valid. This is set to false any time a size |
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* adjustment means the component need to be layed out again. |
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* |
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* @see #isValid() |
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* @see #validate() |
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* @see #invalidate() |
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* @serial true if layout is valid |
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*/ |
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boolean valid; |
boolean valid; |
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boolean hasFocus; |
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//DropTarget dropTarget; |
/** |
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* The DropTarget for drag-and-drop operations. |
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* |
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* @see #getDropTarget() |
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* @see #setDropTarget(DropTarget) |
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* @serial the drop target, or null |
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* @since 1.2 |
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*/ |
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DropTarget dropTarget; |
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/** |
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* The list of popup menus for this component. |
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* |
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* @see #add(PopupMenu) |
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* @serial the list of popups |
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*/ |
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Vector popups; |
Vector popups; |
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/** |
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* The component's name. May be null, in which case a default name is |
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* generated on the first use. |
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* |
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* @see #getName() |
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* @see #setName(String) |
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* @serial the name |
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*/ |
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String name; |
String name; |
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/** |
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* True once the user has set the name. Note that the user may set the name |
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* to null. |
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* |
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* @see #name |
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* @see #getName() |
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* @see #setName(String) |
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* @serial true if the name has been explicitly set |
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*/ |
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boolean nameExplicitlySet; |
boolean nameExplicitlySet; |
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/** |
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* Indicates if the object can be focused. Defaults to true for components. |
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* |
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* @see #isFocusable() |
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* @see #setFocusable(boolean) |
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* @since 1.4 |
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*/ |
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boolean focusable = true; |
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/** |
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* Tracks whether this component uses default focus traversal, or has a |
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* different policy. |
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* |
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* @see #isFocusTraversableOverridden() |
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* @since 1.4 |
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*/ |
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int isFocusTraversableOverridden; |
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/** |
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* The focus traversal keys, if not inherited from the parent or default |
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* keyboard manager. These sets will contain only AWTKeyStrokes that |
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* represent press and release events to use as focus control. |
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* |
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* @see #getFocusTraversalKeys(int) |
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* @see #setFocusTraversalKeys(int, Set) |
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* @since 1.4 |
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*/ |
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Set[] focusTraversalKeys; |
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/** |
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* True if focus traversal keys are enabled. This defaults to true for |
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* Component. If this is true, keystrokes in focusTraversalKeys are trapped |
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* and processed automatically rather than being passed on to the component. |
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* |
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* @see #getFocusTraversalKeysEnabled() |
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* @see #setFocusTraversalKeysEnabled(boolean) |
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* @since 1.4 |
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*/ |
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boolean focusTraversalKeysEnabled = true; |
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|
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/** |
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* Cached information on the minimum size. Should have been transient. |
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* |
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* @serial ignore |
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*/ |
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Dimension minSize; |
Dimension minSize; |
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|
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/** |
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* Cached information on the preferred size. Should have been transient. |
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* |
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* @serial ignore |
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*/ |
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Dimension prefSize; |
Dimension prefSize; |
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boolean newEventsOnly; |
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long eventMask = AWTEvent.PAINT_EVENT_MASK; |
/** |
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* Set to true if an event is to be handled by this component, false if |
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* it is to be passed up the hierarcy. |
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* |
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* @see #dispatchEvent(AWTEvent) |
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* @serial true to process event locally |
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*/ |
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boolean newEventsOnly; |
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/** |
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* Set by subclasses to enable event handling of particular events, and |
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* left alone when modifying listeners. For component, this defaults to |
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* enabling only input methods. |
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* |
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* @see #enableInputMethods(boolean) |
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* @see AWTEvent |
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* @serial the mask of events to process |
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*/ |
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long eventMask = AWTEvent.INPUT_ENABLED_EVENT_MASK; |
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|
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/** |
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* Describes all registered PropertyChangeListeners. |
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* |
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* @see #addPropertyChangeListener(PropertyChangeListener) |
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* @see #removePropertyChangeListener(PropertyChangeListener) |
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* @see #firePropertyChange(String, Object, Object) |
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* @serial the property change listeners |
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* @since 1.2 |
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*/ |
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PropertyChangeSupport changeSupport; |
PropertyChangeSupport changeSupport; |
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|
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/** |
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* True if the component has been packed (layed out). |
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* |
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* @serial true if this is packed |
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*/ |
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boolean isPacked; |
boolean isPacked; |
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int componentSerializedDataVersion; |
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/* AccessibleContext accessibleContext; */ |
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/* Anything else is non-serializable, and should be declared "transient". */ |
/** |
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transient Container parent; |
* The serialization version for this class. Currently at version 4. |
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transient ComponentPeer peer; |
* |
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* XXX How do we handle prior versions? |
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* |
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* @serial the serialization version |
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*/ |
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int componentSerializedDataVersion = 4; |
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|
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/** |
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* The accessible context associated with this component. This is only set |
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* by subclasses. |
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* |
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* @see #getAccessibleContext() |
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* @serial the accessibility context |
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* @since 1.2 |
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*/ |
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AccessibleContext accessibleContext; |
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|
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|
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// Guess what - listeners are special cased in serialization. See |
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// readObject and writeObject. |
489 |
|
|
490 |
|
/** Component listener chain. */ |
491 |
transient ComponentListener componentListener; |
transient ComponentListener componentListener; |
492 |
|
|
493 |
|
/** Focus listener chain. */ |
494 |
transient FocusListener focusListener; |
transient FocusListener focusListener; |
495 |
|
|
496 |
|
/** Key listener chain. */ |
497 |
transient KeyListener keyListener; |
transient KeyListener keyListener; |
498 |
|
|
499 |
|
/** Mouse listener chain. */ |
500 |
transient MouseListener mouseListener; |
transient MouseListener mouseListener; |
501 |
|
|
502 |
|
/** Mouse motion listener chain. */ |
503 |
transient MouseMotionListener mouseMotionListener; |
transient MouseMotionListener mouseMotionListener; |
504 |
|
|
505 |
|
/** |
506 |
|
* Mouse wheel listener chain. |
507 |
|
* |
508 |
|
* @since 1.4 |
509 |
|
*/ |
510 |
|
transient MouseWheelListener mouseWheelListener; |
511 |
|
|
512 |
|
/** |
513 |
|
* Input method listener chain. |
514 |
|
* |
515 |
|
* @since 1.2 |
516 |
|
*/ |
517 |
transient InputMethodListener inputMethodListener; |
transient InputMethodListener inputMethodListener; |
518 |
|
|
519 |
|
/** |
520 |
|
* Hierarcy listener chain. |
521 |
|
* |
522 |
|
* @since 1.3 |
523 |
|
*/ |
524 |
transient HierarchyListener hierarchyListener; |
transient HierarchyListener hierarchyListener; |
525 |
|
|
526 |
|
/** |
527 |
|
* Hierarcy bounds listener chain. |
528 |
|
* |
529 |
|
* @since 1.3 |
530 |
|
*/ |
531 |
transient HierarchyBoundsListener hierarchyBoundsListener; |
transient HierarchyBoundsListener hierarchyBoundsListener; |
532 |
|
|
533 |
|
// Anything else is non-serializable, and should be declared "transient". |
534 |
|
|
535 |
|
/** The parent. */ |
536 |
|
transient Container parent; |
537 |
|
|
538 |
|
/** The associated native peer. */ |
539 |
|
transient ComponentPeer peer; |
540 |
|
|
541 |
|
/** The preferred component orientation. */ |
542 |
transient ComponentOrientation orientation = ComponentOrientation.UNKNOWN; |
transient ComponentOrientation orientation = ComponentOrientation.UNKNOWN; |
543 |
|
|
544 |
/** |
/** |
545 |
* Default constructor for subclasses. |
* The associated graphics configuration. |
546 |
|
* |
547 |
|
* @since 1.4 |
548 |
|
*/ |
549 |
|
transient GraphicsConfiguration graphicsConfig; |
550 |
|
|
551 |
|
/** |
552 |
|
* The buffer strategy for repainting. |
553 |
|
* |
554 |
|
* @since 1.4 |
555 |
|
*/ |
556 |
|
transient BufferStrategy bufferStrategy; |
557 |
|
|
558 |
|
|
559 |
|
// Public and protected API. |
560 |
|
|
561 |
|
/** |
562 |
|
* Default constructor for subclasses. When Component is extended directly, |
563 |
|
* it forms a lightweight component that must be hosted in an opaque native |
564 |
|
* container higher in the tree. |
565 |
*/ |
*/ |
566 |
protected Component() |
protected Component() |
567 |
{ |
{ |
570 |
/** |
/** |
571 |
* Returns the name of this component. |
* Returns the name of this component. |
572 |
* |
* |
573 |
* @return The name of this component. |
* @return the name of this component |
574 |
|
* @see #setName(String) |
575 |
|
* @since 1.1 |
576 |
*/ |
*/ |
577 |
public String getName() |
public String getName() |
578 |
{ |
{ |
579 |
if (name == null && !nameExplicitlySet) |
if (name == null && ! nameExplicitlySet) |
580 |
name = generateName(); |
name = generateName(); |
581 |
return name; |
return name; |
582 |
} |
} |
584 |
/** |
/** |
585 |
* Sets the name of this component to the specified name. |
* Sets the name of this component to the specified name. |
586 |
* |
* |
587 |
* @param name The new name of this component. |
* @param name the new name of this component |
588 |
|
* @see #getName() |
589 |
|
* @since 1.1 |
590 |
*/ |
*/ |
591 |
public void setName(String name) |
public void setName(String name) |
592 |
{ |
{ |
593 |
nameExplicitlySet = true; |
nameExplicitlySet = true; |
594 |
this.name = name; |
this.name = name; |
595 |
} |
} |
|
|
|
|
/** Subclasses should override this to return unique component names like |
|
|
* "menuitem0". |
|
|
*/ |
|
|
String generateName() |
|
|
{ |
|
|
// Component is abstract. |
|
|
return null; |
|
|
} |
|
596 |
|
|
597 |
/** |
/** |
598 |
* Returns the parent of this component. |
* Returns the parent of this component. |
599 |
* |
* |
600 |
* @return The parent of this component. |
* @return the parent of this component |
601 |
*/ |
*/ |
602 |
public Container getParent() |
public Container getParent() |
603 |
{ |
{ |
604 |
return parent; |
return parent; |
|
} |
|
|
|
|
|
// Sets the peer for this component. |
|
|
final void setPeer (ComponentPeer peer) |
|
|
{ |
|
|
this.peer = peer; |
|
605 |
} |
} |
606 |
|
|
607 |
/** |
/** |
608 |
* Returns the native windowing system peer for this component. |
* Returns the native windowing system peer for this component. Only the |
609 |
|
* platform specific implementation code should call this method. |
610 |
* |
* |
611 |
* @return The peer for this component. |
* @return the peer for this component |
612 |
* @deprecated |
* @deprecated user programs should not directly manipulate peers; use |
613 |
|
* {@link #isDisplayable()} instead |
614 |
*/ |
*/ |
615 |
// Classpath's Gtk peers rely on this. |
// Classpath's Gtk peers rely on this. |
616 |
public ComponentPeer getPeer() |
public ComponentPeer getPeer() |
618 |
return peer; |
return peer; |
619 |
} |
} |
620 |
|
|
621 |
// FIXME: java.awt.dnd classes not yet implemented |
/** |
622 |
/* |
* Set the associated drag-and-drop target, which receives events when this |
623 |
|
* is enabled. |
624 |
|
* |
625 |
|
* @param dt the new drop target |
626 |
|
* @see #isEnabled() |
627 |
|
*/ |
628 |
public void setDropTarget(DropTarget dt) |
public void setDropTarget(DropTarget dt) |
629 |
{ |
{ |
630 |
this.dropTarget = dt; |
this.dropTarget = dt; |
631 |
} |
} |
632 |
|
|
633 |
|
/** |
634 |
|
* Gets the associated drag-and-drop target, if there is one. |
635 |
|
* |
636 |
|
* @return the drop target |
637 |
|
*/ |
638 |
public DropTarget getDropTarget() |
public DropTarget getDropTarget() |
639 |
{ |
{ |
640 |
return dropTarget; |
return dropTarget; |
641 |
} |
} |
642 |
*/ |
|
643 |
|
/** |
644 |
/** @since 1.3 */ |
* Returns the graphics configuration of this component, if there is one. |
645 |
|
* If it has not been set, it is inherited from the parent. |
646 |
|
* |
647 |
|
* @return the graphics configuration, or null |
648 |
|
* @since 1.3 |
649 |
|
*/ |
650 |
public GraphicsConfiguration getGraphicsConfiguration() |
public GraphicsConfiguration getGraphicsConfiguration() |
651 |
{ |
{ |
652 |
return getGraphicsConfigurationImpl(); |
return getGraphicsConfigurationImpl(); |
653 |
} |
} |
654 |
|
|
|
/** Implementation method that allows classes such as Canvas and |
|
|
Window to override the graphics configuration without violating |
|
|
the published API. */ |
|
|
GraphicsConfiguration getGraphicsConfigurationImpl() |
|
|
{ |
|
|
if (peer != null) |
|
|
{ |
|
|
GraphicsConfiguration config = peer.getGraphicsConfiguration(); |
|
|
if (config != null) |
|
|
return config; |
|
|
} |
|
|
|
|
|
if (parent != null) |
|
|
return parent.getGraphicsConfiguration(); |
|
|
|
|
|
return null; |
|
|
} |
|
|
|
|
655 |
/** |
/** |
656 |
* Returns the object used for synchronization locks on this component |
* Returns the object used for synchronization locks on this component |
657 |
* when performing tree and layout functions. |
* when performing tree and layout functions. |
658 |
* |
* |
659 |
* @return The synchronization lock for this component. |
* @return the synchronization lock for this component |
660 |
*/ |
*/ |
661 |
public final Object getTreeLock() |
public final Object getTreeLock() |
662 |
{ |
{ |
663 |
return treeLock; |
return treeLock; |
664 |
} |
} |
665 |
|
|
|
// The sync lock object for this component. |
|
|
final void setTreeLock(Object tree_lock) |
|
|
{ |
|
|
this.treeLock = tree_lock; |
|
|
} |
|
|
|
|
666 |
/** |
/** |
667 |
* Returns the toolkit in use for this component. |
* Returns the toolkit in use for this component. The toolkit is associated |
668 |
|
* with the frame this component belongs to. |
669 |
* |
* |
670 |
* @return The toolkit for this component. |
* @return the toolkit for this component |
671 |
*/ |
*/ |
672 |
public Toolkit getToolkit() |
public Toolkit getToolkit() |
673 |
{ |
{ |
678 |
return tk; |
return tk; |
679 |
} |
} |
680 |
if (parent != null) |
if (parent != null) |
681 |
return parent.getToolkit (); |
return parent.getToolkit(); |
682 |
return Toolkit.getDefaultToolkit (); |
return Toolkit.getDefaultToolkit(); |
683 |
} |
} |
684 |
|
|
685 |
/** |
/** |
686 |
* Tests whether or not this component is valid. A invalid component needs |
* Tests whether or not this component is valid. A invalid component needs |
687 |
* to have its layout redone. |
* to have its layout redone. |
688 |
* |
* |
689 |
* @return <code>true</code> if this component is valid, <code>false</code> |
* @return true if this component is valid |
690 |
* otherwise. |
* @see #validate() |
691 |
|
* @see #invalidate() |
692 |
*/ |
*/ |
693 |
public boolean isValid() |
public boolean isValid() |
694 |
{ |
{ |
695 |
return valid; |
return valid; |
696 |
} |
} |
697 |
|
|
698 |
/** @since 1.2 */ |
/** |
699 |
|
* Tests if the component is displayable. It must be connected to a native |
700 |
|
* screen resource, and all its ancestors must be displayable. A containment |
701 |
|
* hierarchy is made displayable when a window is packed or made visible. |
702 |
|
* |
703 |
|
* @return true if the component is displayable |
704 |
|
* @see Container#add(Component) |
705 |
|
* @see Container#remove(Component) |
706 |
|
* @see Window#pack() |
707 |
|
* @see Window#show() |
708 |
|
* @see Window#dispose() |
709 |
|
* @since 1.2 |
710 |
|
*/ |
711 |
public boolean isDisplayable() |
public boolean isDisplayable() |
712 |
{ |
{ |
713 |
if (parent != null) |
if (parent != null) |
716 |
} |
} |
717 |
|
|
718 |
/** |
/** |
719 |
* Tests whether or not this component is visible. |
* Tests whether or not this component is visible. Except for top-level |
720 |
|
* frames, components are initially visible. |
721 |
* |
* |
722 |
* @return <code>true</code> if the component is visible, |
* @return true if the component is visible |
723 |
* <code>false</code> otherwise. |
* @see #setVisible(boolean) |
724 |
*/ |
*/ |
725 |
public boolean isVisible() |
public boolean isVisible() |
726 |
{ |
{ |
729 |
|
|
730 |
/** |
/** |
731 |
* Tests whether or not this component is actually being shown on |
* Tests whether or not this component is actually being shown on |
732 |
* the screen. This will be true if and only if it this component is |
* the screen. This will be true if and only if it this component is |
733 |
* visible and its parent components are all visible. |
* visible and its parent components are all visible. |
734 |
* |
* |
735 |
* @return <code>true</code> if the component is showing on the screen, |
* @return true if the component is showing on the screen |
736 |
* <code>false</code> otherwise. |
* @see #setVisible(boolean) |
737 |
*/ |
*/ |
738 |
public boolean isShowing() |
public boolean isShowing() |
739 |
{ |
{ |
740 |
if (! visible || peer == null) |
if (! visible || peer == null) |
741 |
return false; |
return false; |
742 |
|
|
743 |
return parent == null ? true : parent.isShowing (); |
return parent == null ? true : parent.isShowing(); |
744 |
} |
} |
745 |
|
|
746 |
/** |
/** |
747 |
* Tests whether or not this component is enabled. |
* Tests whether or not this component is enabled. Components are enabled |
748 |
|
* by default, and must be enabled to receive user input or generate events. |
749 |
* |
* |
750 |
* @return <code>true</code> if the component is enabled, |
* @return true if the component is enabled |
751 |
* <code>false</code> otherwise. |
* @see #setEnabled(boolean) |
752 |
*/ |
*/ |
753 |
public boolean isEnabled() |
public boolean isEnabled() |
754 |
{ |
{ |
756 |
} |
} |
757 |
|
|
758 |
/** |
/** |
759 |
* Enables or disables this component. |
* Enables or disables this component. The component must be enabled to |
760 |
* |
* receive events (except that lightweight components always receive mouse |
761 |
* @param enabled <code>true</code> to enable this component, |
* events). |
762 |
* <code>false</code> to disable it. |
* |
763 |
* |
* @param enabled true to enable this component |
764 |
* @deprecated Deprecated in favor of <code>setEnabled()</code>. |
* @see #isEnabled() |
765 |
|
* @see #isLightweight() |
766 |
|
* @since 1.1 |
767 |
*/ |
*/ |
768 |
public void setEnabled(boolean b) |
public void setEnabled(boolean b) |
769 |
{ |
{ |
775 |
/** |
/** |
776 |
* Enables this component. |
* Enables this component. |
777 |
* |
* |
778 |
* @deprecated Deprecated in favor of <code>setEnabled()</code>. |
* @deprecated use {@link #setEnabled(boolean)} instead |
779 |
*/ |
*/ |
780 |
public void enable() |
public void enable() |
781 |
{ |
{ |
785 |
/** |
/** |
786 |
* Enables or disables this component. |
* Enables or disables this component. |
787 |
* |
* |
788 |
* @param enabled <code>true</code> to enable this component, |
* @param enabled true to enable this component |
789 |
* <code>false</code> to disable it. |
* @deprecated use {@link #setEnabled(boolean)} instead |
|
* |
|
|
* @deprecated Deprecated in favor of <code>setEnabled()</code>. |
|
790 |
*/ |
*/ |
791 |
public void enable(boolean b) |
public void enable(boolean b) |
792 |
{ |
{ |
796 |
/** |
/** |
797 |
* Disables this component. |
* Disables this component. |
798 |
* |
* |
799 |
* @deprecated Deprecated in favor of <code>setEnabled()</code>. |
* @deprecated use {@link #setEnabled(boolean)} instead |
800 |
*/ |
*/ |
801 |
public void disable() |
public void disable() |
802 |
{ |
{ |
803 |
setEnabled(false); |
setEnabled(false); |
804 |
} |
} |
805 |
|
|
806 |
|
/** |
807 |
|
* Checks if this image is painted to an offscreen image buffer that is |
808 |
|
* later copied to screen (double buffering reduces flicker). This version |
809 |
|
* returns false, so subclasses must override it if they provide double |
810 |
|
* buffering. |
811 |
|
* |
812 |
|
* @return true if this is double buffered; defaults to false |
813 |
|
*/ |
814 |
public boolean isDoubleBuffered() |
public boolean isDoubleBuffered() |
815 |
{ |
{ |
816 |
return false; |
return false; |
817 |
} |
} |
818 |
|
|
819 |
/** @since 1.2 */ |
/** |
820 |
|
* Enables or disables input method support for this component. By default, |
821 |
|
* components have this enabled. Input methods are given the opportunity |
822 |
|
* to process key events before this component and its listeners. |
823 |
|
* |
824 |
|
* @param enable true to enable input method processing |
825 |
|
* @see #processKeyEvent(KeyEvent) |
826 |
|
* @since 1.2 |
827 |
|
*/ |
828 |
public void enableInputMethods(boolean enable) |
public void enableInputMethods(boolean enable) |
829 |
{ |
{ |
830 |
// FIXME |
// XXX Implement. |
831 |
|
throw new Error("not implemented"); |
832 |
} |
} |
833 |
|
|
834 |
/** |
/** |
835 |
* Makes this component visible or invisible. |
* Makes this component visible or invisible. Note that it wtill might |
836 |
|
* not show the component, if a parent is invisible. |
837 |
* |
* |
838 |
* @param visible <code>true</code> to make this component visible, |
* @param visible true to make this component visible |
839 |
* </code>false</code> to make it invisible. |
* @see #isVisible() |
840 |
* @specnote Inspection by subclassing shows that Sun's implementation |
* @since 1.1 |
|
* calls show(boolean) which then calls show() or hide(). It is |
|
|
* the show() method that is overriden in subclasses like Window. |
|
|
* We do the same to preserve compatibility for subclasses. |
|
841 |
*/ |
*/ |
842 |
public void setVisible(boolean b) |
public void setVisible(boolean b) |
843 |
{ |
{ |
844 |
|
// Inspection by subclassing shows that Sun's implementation calls |
845 |
|
// show(boolean) which then calls show() or hide(). It is the show() |
846 |
|
// method that is overriden in subclasses like Window. |
847 |
if (peer != null) |
if (peer != null) |
848 |
peer.setVisible (b); |
peer.setVisible(b); |
849 |
this.visible = b; |
this.visible = b; |
850 |
} |
} |
851 |
|
|
852 |
/** |
/** |
853 |
* Makes this component visible on the screen. |
* Makes this component visible on the screen. |
854 |
* |
* |
855 |
* @deprecated Deprecated in favor of <code>setVisible()</code>. |
* @deprecated use {@link #setVisible(boolean)} instead |
856 |
*/ |
*/ |
857 |
public void show() |
public void show() |
858 |
{ |
{ |
859 |
setVisible (true); |
setVisible(true); |
860 |
} |
} |
861 |
|
|
862 |
/** |
/** |
863 |
* Makes this component visible or invisible. |
* Makes this component visible or invisible. |
864 |
* |
* |
865 |
* @param visible <code>true</code> to make this component visible, |
* @param visible true to make this component visible |
866 |
* </code>false</code> to make it invisible. |
* @deprecated use {@link #setVisible(boolean)} instead |
|
* |
|
|
* @deprecated Deprecated in favor of <code>setVisible()</code>. |
|
867 |
*/ |
*/ |
868 |
public void show(boolean b) |
public void show(boolean b) |
869 |
{ |
{ |
870 |
setVisible (b); |
setVisible(b); |
871 |
} |
} |
872 |
|
|
873 |
/** |
/** |
874 |
* Hides this component so that it is no longer shown on the screen. |
* Hides this component so that it is no longer shown on the screen. |
875 |
* |
* |
876 |
* @deprecated Deprecated in favor of <code>setVisible()</code>. |
* @deprecated use {@link #setVisible(boolean)} instead |
877 |
*/ |
*/ |
878 |
public void hide() |
public void hide() |
879 |
{ |
{ |
880 |
setVisible (false); |
setVisible(false); |
881 |
} |
} |
882 |
|
|
883 |
/** |
/** |
884 |
* Returns this component's foreground color. |
* Returns this component's foreground color. If not set, this is inherited |
885 |
|
* from the parent. |
886 |
* |
* |
887 |
* @return This component's foreground color. |
* @return this component's foreground color, or null |
888 |
|
* @see #setForeground(Color) |
889 |
*/ |
*/ |
890 |
public Color getForeground() |
public Color getForeground() |
891 |
{ |
{ |
892 |
if (foreground != null) |
if (foreground != null) |
893 |
return foreground; |
return foreground; |
894 |
if (parent != null) |
return parent == null ? null : parent.getForeground(); |
|
return parent.getForeground(); |
|
|
return null; |
|
895 |
} |
} |
896 |
|
|
897 |
/** |
/** |
898 |
* Sets this component's foreground color to the specified color. |
* Sets this component's foreground color to the specified color. This is a |
899 |
|
* bound property. |
900 |
* |
* |
901 |
* @param foreground_color The new foreground color. |
* @param c the new foreground color |
902 |
|
* @see #getForeground() |
903 |
*/ |
*/ |
904 |
public void setForeground(Color c) |
public void setForeground(Color c) |
905 |
{ |
{ |
906 |
|
firePropertyChange("foreground", foreground, c); |
907 |
if (peer != null) |
if (peer != null) |
908 |
peer.setForeground(c); |
peer.setForeground(c); |
909 |
this.foreground = c; |
foreground = c; |
910 |
|
} |
911 |
|
|
912 |
|
/** |
913 |
|
* Tests if the foreground was explicitly set, or just inherited from the |
914 |
|
* parent. |
915 |
|
* |
916 |
|
* @return true if the foreground has been set |
917 |
|
* @since 1.4 |
918 |
|
*/ |
919 |
|
public boolean isForegroundSet() |
920 |
|
{ |
921 |
|
return foreground != null; |
922 |
} |
} |
923 |
|
|
924 |
/** |
/** |
925 |
* Returns this component's background color. |
* Returns this component's background color. If not set, this is inherited |
926 |
|
* from the parent. |
927 |
* |
* |
928 |
* @return the background color of the component. null may be |
* @return the background color of the component, or null |
929 |
* returned instead of the actual background color, if this |
* @see #setBackground(Color) |
|
* method is called before the component is added to the |
|
|
* component hierarchy. |
|
930 |
*/ |
*/ |
931 |
public Color getBackground() |
public Color getBackground() |
932 |
{ |
{ |
933 |
if (background != null) |
if (background != null) |
934 |
return background; |
return background; |
935 |
if (parent != null) |
return parent == null ? null : parent.getBackground(); |
|
return parent.getBackground(); |
|
|
return null; |
|
936 |
} |
} |
937 |
|
|
938 |
/** |
/** |
939 |
* Sets this component's background color to the specified color. |
* Sets this component's background color to the specified color. The parts |
940 |
|
* of the component affected by the background color may by system dependent. |
941 |
|
* This is a bound property. |
942 |
* |
* |
943 |
* @param background_color The new background color |
* @param c the new background color |
944 |
|
* @see #getBackground() |
945 |
*/ |
*/ |
946 |
public void setBackground(Color c) |
public void setBackground(Color c) |
947 |
{ |
{ |
948 |
|
firePropertyChange("background", background, c); |
949 |
if (peer != null) |
if (peer != null) |
950 |
peer.setBackground(c); |
peer.setBackground(c); |
951 |
this.background = c; |
background = c; |
952 |
} |
} |
953 |
|
|
954 |
/** |
/** |
955 |
* Returns the font in use for this component. |
* Tests if the background was explicitly set, or just inherited from the |
956 |
|
* parent. |
957 |
* |
* |
958 |
* @return The font for this component. |
* @return true if the background has been set |
959 |
|
* @since 1.4 |
960 |
|
*/ |
961 |
|
public boolean isBackgroundSet() |
962 |
|
{ |
963 |
|
return background != null; |
964 |
|
} |
965 |
|
|
966 |
|
/** |
967 |
|
* Returns the font in use for this component. If not set, this is inherited |
968 |
|
* from the parent. |
969 |
|
* |
970 |
|
* @return the font for this component |
971 |
|
* @see #setFont(Font) |
972 |
*/ |
*/ |
973 |
public Font getFont() |
public Font getFont() |
974 |
{ |
{ |
975 |
if (font != null) |
if (font != null) |
976 |
return font; |
return font; |
977 |
if (parent != null) |
return parent == null ? null : parent.getFont(); |
|
return parent.getFont(); |
|
|
return null; |
|
978 |
} |
} |
979 |
|
|
980 |
/** |
/** |
981 |
* Sets the font for this component to the specified font. |
* Sets the font for this component to the specified font. This is a bound |
982 |
|
* property. |
983 |
* |
* |
984 |
* @param font The new font for this component. |
* @param font the new font for this component |
985 |
|
* @see #getFont() |
986 |
*/ |
*/ |
987 |
public void setFont(Font f) |
public void setFont(Font f) |
988 |
{ |
{ |
989 |
|
firePropertyChange("font", font, f); |
990 |
if (peer != null) |
if (peer != null) |
991 |
peer.setFont(f); |
peer.setFont(f); |
992 |
this.font = f; |
font = f; |
993 |
} |
} |
994 |
|
|
995 |
/** |
/** |
996 |
* Returns the locale for this component. If this component does not |
* Tests if the font was explicitly set, or just inherited from the parent. |
|
* have a locale, the locale of the parent component is returned. If the |
|
|
* component has no parent, the system default locale is returned. |
|
997 |
* |
* |
998 |
* @return The locale for this component. |
* @return true if the font has been set |
999 |
|
* @since 1.4 |
1000 |
*/ |
*/ |
1001 |
public Locale getLocale() throws IllegalComponentStateException |
public boolean isFontSet() |
1002 |
|
{ |
1003 |
|
return font != null; |
1004 |
|
} |
1005 |
|
|
1006 |
|
/** |
1007 |
|
* Returns the locale for this component. If this component does not |
1008 |
|
* have a locale, the locale of the parent component is returned. |
1009 |
|
* |
1010 |
|
* @return the locale for this component |
1011 |
|
* @throws IllegalComponentStateException if it has no locale or parent |
1012 |
|
* @see setLocale(Locale) |
1013 |
|
* @since 1.1 |
1014 |
|
*/ |
1015 |
|
public Locale getLocale() |
1016 |
{ |
{ |
1017 |
if (locale != null) |
if (locale != null) |
1018 |
return locale; |
return locale; |
1019 |
if (parent == null) |
if (parent == null) |
1020 |
throw new IllegalComponentStateException |
throw new IllegalComponentStateException |
1021 |
("Component has no parent: Can not determine Locale"); |
("Component has no parent: can't determine Locale"); |
1022 |
return parent.getLocale(); |
return parent.getLocale(); |
1023 |
} |
} |
1024 |
|
|
1025 |
/** |
/** |
1026 |
* Sets the locale for this component to the specified locale. |
* Sets the locale for this component to the specified locale. This is a |
1027 |
|
* bound property. |
1028 |
* |
* |
1029 |
* @param locale The new locale for this component. |
* @param locale the new locale for this component |
1030 |
*/ |
*/ |
1031 |
public void setLocale(Locale l) |
public void setLocale(Locale l) |
1032 |
{ |
{ |
1033 |
this.locale = l; |
firePropertyChange("locale", locale, l); |
1034 |
|
locale = l; |
1035 |
/* new writing/layout direction perhaps, or make more/less |
// New writing/layout direction or more/less room for localized labels. |
|
room for localized text labels */ |
|
1036 |
invalidate(); |
invalidate(); |
1037 |
} |
} |
1038 |
|
|
1039 |
/** |
/** |
1040 |
* Returns the color model of the device this componet is displayed on. |
* Returns the color model of the device this componet is displayed on. |
1041 |
* |
* |
1042 |
* @return This object's color model. |
* @return this object's color model |
1043 |
|
* @see Toolkit#getColorModel() |
1044 |
*/ |
*/ |
1045 |
public ColorModel getColorModel() |
public ColorModel getColorModel() |
1046 |
{ |
{ |
1047 |
GraphicsConfiguration config = getGraphicsConfiguration(); |
GraphicsConfiguration config = getGraphicsConfiguration(); |
1048 |
|
return config != null ? config.getColorModel() |
1049 |
if (config != null) |
: getToolkit().getColorModel(); |
|
return config.getColorModel(); |
|
|
|
|
|
return getToolkit().getColorModel(); |
|
1050 |
} |
} |
1051 |
|
|
1052 |
/** |
/** |
1053 |
* Returns the location of this component's top left corner relative to |
* Returns the location of this component's top left corner relative to |
1054 |
* its parent component. |
* its parent component. This may be outdated, so for synchronous behavior, |
1055 |
|
* you should use a component listner. |
1056 |
* |
* |
1057 |
* @return The location of this component. |
* @return the location of this component |
1058 |
|
* @see #setLocation(int, int) |
1059 |
|
* @see #getLocationOnScreen() |
1060 |
|
* @since 1.1 |
1061 |
*/ |
*/ |
1062 |
public Point getLocation() |
public Point getLocation() |
1063 |
{ |
{ |
1068 |
* Returns the location of this component's top left corner in screen |
* Returns the location of this component's top left corner in screen |
1069 |
* coordinates. |
* coordinates. |
1070 |
* |
* |
1071 |
* @return The location of this component in screen coordinates. |
* @return the location of this component in screen coordinates |
1072 |
|
* @throws IllegalComponentStateException if the component is not showing |
1073 |
*/ |
*/ |
1074 |
public Point getLocationOnScreen() |
public Point getLocationOnScreen() |
1075 |
{ |
{ |
1076 |
if (! isShowing ()) |
if (! isShowing()) |
1077 |
throw new IllegalComponentStateException ("component not showing"); |
throw new IllegalComponentStateException("component not showing"); |
|
|
|
1078 |
// We know peer != null here. |
// We know peer != null here. |
1079 |
return peer.getLocationOnScreen (); |
return peer.getLocationOnScreen(); |
1080 |
} |
} |
1081 |
|
|
1082 |
/** |
/** |
1083 |
* Returns the location of this component's top left corner relative to |
* Returns the location of this component's top left corner relative to |
1084 |
* its parent component. |
* its parent component. |
1085 |
* |
* |
1086 |
* @return The location of this component. |
* @return the location of this component |
1087 |
* |
* @deprecated use {@link #getLocation()} instead |
|
* @deprecated This method is deprecated in favor of |
|
|
* <code>getLocation()</code>. |
|
1088 |
*/ |
*/ |
1089 |
public Point location() |
public Point location() |
1090 |
{ |
{ |
1092 |
} |
} |
1093 |
|
|
1094 |
/** |
/** |
1095 |
* Moves this component to the specified location. The coordinates are |
* Moves this component to the specified location, relative to the parent's |
1096 |
* the new upper left corner of this component. |
* coordinates. The coordinates are the new upper left corner of this |
1097 |
* |
* component. |
1098 |
* @param x The new X coordinate of this component. |
* |
1099 |
* @param y The new Y coordinate of this component. |
* @param x the new X coordinate of this component |
1100 |
|
* @param y the new Y coordinate of this component |
1101 |
|
* @see #getLocation() |
1102 |
|
* @see #setBounds(int, int, int, int) |
1103 |
*/ |
*/ |
1104 |
public void setLocation (int x, int y) |
public void setLocation(int x, int y) |
1105 |
{ |
{ |
1106 |
if ((this.x == x) && (this.y == y)) |
if (this.x == x && this.y == y) |
1107 |
return; |
return; |
|
|
|
1108 |
invalidate(); |
invalidate(); |
|
|
|
1109 |
this.x = x; |
this.x = x; |
1110 |
this.y = y; |
this.y = y; |
1111 |
if (peer != null) |
if (peer != null) |
1113 |
} |
} |
1114 |
|
|
1115 |
/** |
/** |
1116 |
* Moves this component to the specified location. The coordinates are |
* Moves this component to the specified location, relative to the parent's |
1117 |
* the new upper left corner of this component. |
* coordinates. The coordinates are the new upper left corner of this |
1118 |
* |
* component. |
1119 |
* @param x The new X coordinate of this component. |
* |
1120 |
* @param y The new Y coordinate of this component. |
* @param x the new X coordinate of this component |
1121 |
* |
* @param y the new Y coordinate of this component |
1122 |
* @deprecated Deprecated in favor for <code>setLocation</code>. |
* @deprecated use {@link #setLocation(int, int)} instead |
1123 |
*/ |
*/ |
1124 |
public void move(int x, int y) |
public void move(int x, int y) |
1125 |
{ |
{ |
1126 |
setLocation(x,y); |
setLocation(x, y); |
1127 |
} |
} |
1128 |
|
|
1129 |
/** |
/** |
1130 |
* Moves this component to the specified location. The coordinates are |
* Moves this component to the specified location, relative to the parent's |
1131 |
* the new upper left corner of this component. |
* coordinates. The coordinates are the new upper left corner of this |
1132 |
|
* component. |
1133 |
* |
* |
1134 |
* @param p New coordinates for this component. |
* @param p new coordinates for this component |
1135 |
|
* @throws NullPointerException if p is null |
1136 |
|
* @see #getLocation() |
1137 |
|
* @see #setBounds(int, int, int, int) |
1138 |
|
* @since 1.1 |
1139 |
*/ |
*/ |
1140 |
public void setLocation(Point p) |
public void setLocation(Point p) |
1141 |
{ |
{ |
1145 |
/** |
/** |
1146 |
* Returns the size of this object. |
* Returns the size of this object. |
1147 |
* |
* |
1148 |
* @return The size of this object. |
* @return the size of this object |
1149 |
|
* @see #setSize(int, int) |
1150 |
|
* @since 1.1 |
1151 |
*/ |
*/ |
1152 |
public Dimension getSize() |
public Dimension getSize() |
1153 |
{ |
{ |
1157 |
/** |
/** |
1158 |
* Returns the size of this object. |
* Returns the size of this object. |
1159 |
* |
* |
1160 |
* @return The size of this object. |
* @return the size of this object |
1161 |
* |
* @deprecated use {@link #getSize()} instead |
|
* @deprecated This method is deprecated in favor of <code>getSize</code>. |
|
1162 |
*/ |
*/ |
1163 |
public Dimension size() |
public Dimension size() |
1164 |
{ |
{ |
1167 |
|
|
1168 |
/** |
/** |
1169 |
* Sets the size of this component to the specified width and height. |
* Sets the size of this component to the specified width and height. |
1170 |
* |
* |
1171 |
* @param width The new width of this component. |
* @param width the new width of this component |
1172 |
* @param height The new height of this component. |
* @param height the new height of this component |
1173 |
|
* @see #getSize() |
1174 |
|
* @see #setBounds(int, int, int, int) |
1175 |
*/ |
*/ |
1176 |
public void setSize(int width, int height) |
public void setSize(int width, int height) |
1177 |
{ |
{ |
1178 |
if ((this.width == width) && (this.height == height)) |
if (this.width == width && this.height == height) |
1179 |
return; |
return; |
|
|
|
1180 |
invalidate(); |
invalidate(); |
|
|
|
1181 |
this.width = width; |
this.width = width; |
1182 |
this.height = height; |
this.height = height; |
1183 |
if (peer != null) |
if (peer != null) |
1186 |
|
|
1187 |
/** |
/** |
1188 |
* Sets the size of this component to the specified value. |
* Sets the size of this component to the specified value. |
|
* |
|
|
* @param width The new width of the component. |
|
|
* @param height The new height of the component. |
|
1189 |
* |
* |
1190 |
* @deprecated This method is deprecated in favor of <code>setSize</code>. |
* @param width the new width of the component |
1191 |
|
* @param height the new height of the component |
1192 |
|
* @deprecated use {@link #setSize(int, int)} instead |
1193 |
*/ |
*/ |
1194 |
public void resize(int width, int height) |
public void resize(int width, int height) |
1195 |
{ |
{ |
1198 |
|
|
1199 |
/** |
/** |
1200 |
* Sets the size of this component to the specified value. |
* Sets the size of this component to the specified value. |
1201 |
* |
* |
1202 |
* @param dim The new size of this component. |
* @param d the new size of this component |
1203 |
|
* @throws NullPointerException if d is null |
1204 |
|
* @see #setSize(int, int) |
1205 |
|
* @see #setBounds(int, int, int, int) |
1206 |
|
* @since 1.1 |
1207 |
*/ |
*/ |
1208 |
public void setSize(Dimension d) |
public void setSize(Dimension d) |
1209 |
{ |
{ |
1212 |
|
|
1213 |
/** |
/** |
1214 |
* Sets the size of this component to the specified value. |
* Sets the size of this component to the specified value. |
|
* |
|
|
* @param dim The new size of this component. |
|
1215 |
* |
* |
1216 |
* @deprecated This method is deprecated in favor of <code>setSize</code>. |
* @param d the new size of this component |
1217 |
|
* @throws NullPointerException if d is null |
1218 |
|
* @deprecated use {@link #setSize(Dimension)} instead |
1219 |
*/ |
*/ |
1220 |
public void resize(Dimension d) |
public void resize(Dimension d) |
1221 |
{ |
{ |
1223 |
} |
} |
1224 |
|
|
1225 |
/** |
/** |
1226 |
* Returns a bounding rectangle for this component. Note that the |
* Returns a bounding rectangle for this component. Note that the |
1227 |
* returned rectange is relative to this component's parent, not to |
* returned rectange is relative to this component's parent, not to |
1228 |
* the screen. |
* the screen. |
1229 |
* |
* |
1230 |
* @return The bounding rectangle for this component. |
* @return the bounding rectangle for this component |
1231 |
|
* @see #setBounds(int, int, int, int) |
1232 |
|
* @see #getLocation() |
1233 |
|
* @see #getSize() |
1234 |
*/ |
*/ |
1235 |
public Rectangle getBounds() |
public Rectangle getBounds() |
1236 |
{ |
{ |
1237 |
return new Rectangle (x, y, width, height); |
return new Rectangle(x, y, width, height); |
1238 |
} |
} |
1239 |
|
|
1240 |
/** |
/** |
1241 |
* Returns a bounding rectangle for this component. Note that the |
* Returns a bounding rectangle for this component. Note that the |
1242 |
* returned rectange is relative to this component's parent, not to |
* returned rectange is relative to this component's parent, not to |
1243 |
* the screen. |
* the screen. |
1244 |
* |
* |
1245 |
* @return The bounding rectangle for this component. |
* @return the bounding rectangle for this component |
1246 |
* |
* @deprecated use {@link #getBounds()} instead |
|
* @deprecated Deprecated in favor of <code>getBounds()</code>. |
|
1247 |
*/ |
*/ |
1248 |
public Rectangle bounds() |
public Rectangle bounds() |
1249 |
{ |
{ |
1251 |
} |
} |
1252 |
|
|
1253 |
/** |
/** |
1254 |
* Sets the bounding rectangle for this component to the specified |
* Sets the bounding rectangle for this component to the specified values. |
1255 |
* values. Note that these coordinates are relative to the parent, |
* Note that these coordinates are relative to the parent, not to the screen. |
|
* not to the screen. |
|
1256 |
* |
* |
1257 |
* @param x The X coordinate of the upper left corner of the rectangle. |
* @param x the X coordinate of the upper left corner of the rectangle |
1258 |
* @param y The Y coordinate of the upper left corner of the rectangle. |
* @param y the Y coordinate of the upper left corner of the rectangle |
1259 |
* @param width The width of the rectangle. |
* @param w the width of the rectangle |
1260 |
* @param height The height of the rectangle. |
* @param h the height of the rectangle |
1261 |
|
* @see #getBounds() |
1262 |
|
* @see #setLocation(int, int) |
1263 |
|
* @see #setLocation(Point) |
1264 |
|
* @see #setSize(int, int) |
1265 |
|
* @see #setSize(Dimension) |
1266 |
|
* @since 1.1 |
1267 |
*/ |
*/ |
1268 |
public void setBounds(int x, int y, int w, int h) |
public void setBounds(int x, int y, int w, int h) |
1269 |
{ |
{ |
1270 |
if (this.x == x |
if (this.x == x && this.y == y && width == w && height == h) |
|
&& this.y == y |
|
|
&& this.width == w |
|
|
&& this.height == h) |
|
1271 |
return; |
return; |
|
|
|
1272 |
invalidate(); |
invalidate(); |
|
|
|
1273 |
this.x = x; |
this.x = x; |
1274 |
this.y = y; |
this.y = y; |
1275 |
this.width = w; |
width = w; |
1276 |
this.height = h; |
height = h; |
|
|
|
1277 |
if (peer != null) |
if (peer != null) |
1278 |
peer.setBounds(x, y, w, h); |
peer.setBounds(x, y, w, h); |
1279 |
} |
} |
1280 |
|
|
1281 |
/** |
/** |
1282 |
* Sets the bounding rectangle for this component to the specified |
* Sets the bounding rectangle for this component to the specified values. |
1283 |
* values. Note that these coordinates are relative to the parent, |
* Note that these coordinates are relative to the parent, not to the screen. |
|
* not to the screen. |
|
1284 |
* |
* |
1285 |
* @param x The X coordinate of the upper left corner of the rectangle. |
* @param x the X coordinate of the upper left corner of the rectangle |
1286 |
* @param y The Y coordinate of the upper left corner of the rectangle. |
* @param y the Y coordinate of the upper left corner of the rectangle |
1287 |
* @param width The width of the rectangle. |
* @param w the width of the rectangle |
1288 |
* @param height The height of the rectangle. |
* @param h the height of the rectangle |
1289 |
* |
* @deprecated use {@link #setBounds(int, int, int, int)} instead |
|
* @deprecated This method is deprecated in favor of |
|
|
* <code>setBounds(int, int, int, int)</code>. |
|
1290 |
*/ |
*/ |
1291 |
public void reshape(int x, int y, int width, int height) |
public void reshape(int x, int y, int width, int height) |
1292 |
{ |
{ |
1295 |
|
|
1296 |
/** |
/** |
1297 |
* Sets the bounding rectangle for this component to the specified |
* Sets the bounding rectangle for this component to the specified |
1298 |
* rectangle. Note that these coordinates are relative to the parent, |
* rectangle. Note that these coordinates are relative to the parent, not |
1299 |
* not to the screen. |
* to the screen. |
1300 |
* |
* |
1301 |
* @param bounding_rectangle The new bounding rectangle. |
* @param r the new bounding rectangle |
1302 |
|
* @throws NullPointerException if r is null |
1303 |
|
* @see #getBounds() |
1304 |
|
* @see #setLocation(Point) |
1305 |
|
* @see #setSize(Dimension) |
1306 |
|
* @since 1.1 |
1307 |
*/ |
*/ |
1308 |
public void setBounds(Rectangle r) |
public void setBounds(Rectangle r) |
1309 |
{ |
{ |
1310 |
setBounds(r.x, r.y, r.width, r.height); |
setBounds(r.x, r.y, r.width, r.height); |
1311 |
} |
} |
1312 |
|
|
1313 |
/** @since 1.2 */ |
/** |
1314 |
|
* Gets the x coordinate of the upper left corner. This is more efficient |
1315 |
|
* than getBounds().x or getLocation().x. |
1316 |
|
* |
1317 |
|
* @return the current x coordinate |
1318 |
|
* @since 1.2 |
1319 |
|
*/ |
1320 |
public int getX() |
public int getX() |
1321 |
{ |
{ |
1322 |
return x; |
return x; |
1323 |
} |
} |
1324 |
|
|
1325 |
/** @since 1.2 */ |
/** |
1326 |
|
* Gets the y coordinate of the upper left corner. This is more efficient |
1327 |
|
* than getBounds().y or getLocation().y. |
1328 |
|
* |
1329 |
|
* @return the current y coordinate |
1330 |
|
* @since 1.2 |
1331 |
|
*/ |
1332 |
public int getY() |
public int getY() |
1333 |
{ |
{ |
1334 |
return y; |
return y; |
1335 |
} |
} |
1336 |
|
|
1337 |
/** @since 1.2 */ |
/** |
1338 |
|
* Gets the width of the component. This is more efficient than |
1339 |
|
* getBounds().width or getSize().width. |
1340 |
|
* |
1341 |
|
* @return the current width |
1342 |
|
* @since 1.2 |
1343 |
|
*/ |
1344 |
public int getWidth() |
public int getWidth() |
1345 |
{ |
{ |
1346 |
return width; |
return width; |
1347 |
} |
} |
1348 |
|
|
1349 |
/** @since 1.2 */ |
/** |
1350 |
|
* Gets the height of the component. This is more efficient than |
1351 |
|
* getBounds().height or getSize().height. |
1352 |
|
* |
1353 |
|
* @return the current width |
1354 |
|
* @since 1.2 |
1355 |
|
*/ |
1356 |
public int getHeight() |
public int getHeight() |
1357 |
{ |
{ |
1358 |
return height; |
return height; |
1359 |
} |
} |
1360 |
|
|
1361 |
|
/** |
1362 |
|
* Returns the bounds of this component. This allows reuse of an existing |
1363 |
|
* rectangle, if r is non-null. |
1364 |
|
* |
1365 |
|
* @param r the rectangle to use, or null |
1366 |
|
* @return the bounds |
1367 |
|
*/ |
1368 |
public Rectangle getBounds(Rectangle r) |
public Rectangle getBounds(Rectangle r) |
1369 |
{ |
{ |
1370 |
r.x = this.x; |
if (r == null) |
1371 |
r.y = this.y; |
r = new Rectangle(); |
1372 |
r.width = this.width; |
r.x = x; |
1373 |
r.height = this.height; |
r.y = y; |
1374 |
|
r.width = width; |
1375 |
|
r.height = height; |
1376 |
return r; |
return r; |
1377 |
} |
} |
1378 |
|
|
1379 |
|
/** |
1380 |
|
* Returns the size of this component. This allows reuse of an existing |
1381 |
|
* dimension, if d is non-null. |
1382 |
|
* |
1383 |
|
* @param d the dimension to use, or null |
1384 |
|
* @return the size |
1385 |
|
*/ |
1386 |
public Dimension getSize(Dimension d) |
public Dimension getSize(Dimension d) |
1387 |
{ |
{ |
1388 |
d.width = this.width; |
if (d == null) |
1389 |
d.height = this.height; |
d = new Dimension(); |
1390 |
|
d.width = width; |
1391 |
|
d.height = height; |
1392 |
return d; |
return d; |
1393 |
} |
} |
1394 |
|
|
1395 |
|
/** |
1396 |
|
* Returns the location of this component. This allows reuse of an existing |
1397 |
|
* point, if p is non-null. |
1398 |
|
* |
1399 |
|
* @param p the point to use, or null |
1400 |
|
* @return the location |
1401 |
|
*/ |
1402 |
public Point getLocation(Point p) |
public Point getLocation(Point p) |
1403 |
{ |
{ |
1404 |
|
if (p == null) |
1405 |
|
p = new Point(); |
1406 |
p.x = x; |
p.x = x; |
1407 |
p.y = y; |
p.y = y; |
1408 |
return p; |
return p; |
1409 |
} |
} |
1410 |
|
|
1411 |
/** @since 1.2 */ |
/** |
1412 |
|
* Tests if this component is opaque. All "heavyweight" (natively-drawn) |
1413 |
|
* components are opaque. A component is opaque if it draws all pixels in |
1414 |
|
* the bounds; a lightweight component is partially transparent if it lets |
1415 |
|
* pixels underneath show through. Subclasses that guarantee that all pixels |
1416 |
|
* will be drawn should override this. |
1417 |
|
* |
1418 |
|
* @return true if this is opaque |
1419 |
|
* @see #isLightweight() |
1420 |
|
* @since 1.2 |
1421 |
|
*/ |
1422 |
public boolean isOpaque() |
public boolean isOpaque() |
1423 |
{ |
{ |
1424 |
return !isLightweight(); |
return ! isLightweight(); |
1425 |
} |
} |
1426 |
|
|
1427 |
/** |
/** |
1428 |
* Return whether the component is lightweight. |
* Return whether the component is lightweight. That means the component has |
1429 |
* |
* no native peer, but is displayable. This applies to subclasses of |
1430 |
* @return true if component has a peer and and the peer is lightweight. |
* Component not in this package, such as javax.swing. |
1431 |
* |
* |
1432 |
|
* @return true if the component has a lightweight peer |
1433 |
|
* @see #isDisplayable() |
1434 |
* @since 1.2 |
* @since 1.2 |
1435 |
*/ |
*/ |
1436 |
public boolean isLightweight() |
public boolean isLightweight() |
1437 |
{ |
{ |
1438 |
return (peer != null) && (peer instanceof LightweightPeer); |
return peer instanceof LightweightPeer; |
1439 |
} |
} |
1440 |
|
|
1441 |
/** |
/** |
1442 |
* Returns the component's preferred size. |
* Returns the component's preferred size. |
1443 |
* |
* |
1444 |
* @return The component's preferred size. |
* @return the component's preferred size |
1445 |
|
* @see #getMinimumSize() |
1446 |
|
* @see LayoutManager |
1447 |
*/ |
*/ |
1448 |
public Dimension getPreferredSize() |
public Dimension getPreferredSize() |
1449 |
{ |
{ |
1450 |
if (peer == null) |
if (prefSize == null) |
1451 |
return new Dimension(width, height); |
prefSize = (peer != null ? peer.getPreferredSize() |
1452 |
else |
: new Dimension(width, height)); |
1453 |
return peer.getPreferredSize(); |
return prefSize; |
1454 |
} |
} |
1455 |
|
|
1456 |
/** |
/** |
1457 |
* Returns the component's preferred size. |
* Returns the component's preferred size. |
1458 |
* |
* |
1459 |
* @return The component's preferred size. |
* @return the component's preferred size |
1460 |
* |
* @deprecated use {@link #getPreferredSize()} instead |
|
* @deprecated Deprecated in favor of <code>getPreferredSize()</code>. |
|
1461 |
*/ |
*/ |
1462 |
public Dimension preferredSize() |
public Dimension preferredSize() |
1463 |
{ |
{ |
1467 |
/** |
/** |
1468 |
* Returns the component's minimum size. |
* Returns the component's minimum size. |
1469 |
* |
* |
1470 |
* @return The component's minimum size. |
* @return the component's minimum size |
1471 |
|
* @see #getPreferredSize() |
1472 |
|
* @see LayoutManager |
1473 |
*/ |
*/ |
1474 |
public Dimension getMinimumSize() |
public Dimension getMinimumSize() |
1475 |
{ |
{ |
1476 |
if (peer == null) |
if (minSize == null) |
1477 |
return new Dimension(width, height); |
minSize = (peer != null ? peer.getMinimumSize() |
1478 |
else |
: new Dimension(width, height)); |
1479 |
return peer.getMinimumSize(); |
return minSize; |
1480 |
} |
} |
1481 |
|
|
1482 |
/** |
/** |
1483 |
* Returns the component's minimum size. |
* Returns the component's minimum size. |
1484 |
* |
* |
1485 |
* @return The component's minimum size. |
* @return the component's minimum size |
1486 |
* |
* @deprecated use {@link #getMinimumSize()} instead |
|
* @deprecated Deprecated in favor of <code>getMinimumSize()</code> |
|
1487 |
*/ |
*/ |
1488 |
public Dimension minimumSize() |
public Dimension minimumSize() |
1489 |
{ |
{ |
1493 |
/** |
/** |
1494 |
* Returns the component's maximum size. |
* Returns the component's maximum size. |
1495 |
* |
* |
1496 |
* @return The component's maximum size. |
* @return the component's maximum size |
1497 |
|
* @see #getMinimumSize() |
1498 |
|
* @see #getPreferredSize() |
1499 |
|
* @see LayoutManager |
1500 |
*/ |
*/ |
1501 |
public Dimension getMaximumSize() |
public Dimension getMaximumSize() |
1502 |
{ |
{ |
1504 |
} |
} |
1505 |
|
|
1506 |
/** |
/** |
1507 |
* Returns the preferred horizontal alignment of this component. The |
* Returns the preferred horizontal alignment of this component. The value |
1508 |
* value returned will be one of the constants defined in this class. |
* returned will be between {@link #LEFT_ALIGNMENT} and |
1509 |
|
* {@link #RIGHT_ALIGNMENT}, inclusive. |
1510 |
* |
* |
1511 |
* @return The preferred horizontal alignment of this component. |
* @return the preferred horizontal alignment of this component |
1512 |
*/ |
*/ |
1513 |
public float getAlignmentX() |
public float getAlignmentX() |
1514 |
{ |
{ |
1516 |
} |
} |
1517 |
|
|
1518 |
/** |
/** |
1519 |
* Returns the preferred vertical alignment of this component. The |
* Returns the preferred vertical alignment of this component. The value |
1520 |
* value returned will be one of the constants defined in this class. |
* returned will be between {@link #TOP_ALIGNMENT} and |
1521 |
|
* {@link #BOTTOM_ALIGNMENT}, inclusive. |
1522 |
* |
* |
1523 |
* @return The preferred vertical alignment of this component. |
* @return the preferred vertical alignment of this component |
1524 |
*/ |
*/ |
1525 |
public float getAlignmentY() |
public float getAlignmentY() |
1526 |
{ |
{ |
1528 |
} |
} |
1529 |
|
|
1530 |
/** |
/** |
1531 |
* Calls the layout manager to re-layout the component. This is called |
* Calls the layout manager to re-layout the component. This is called |
1532 |
* during validation of a container in most cases. |
* during validation of a container in most cases. |
1533 |
|
* |
1534 |
|
* @see #validate() |
1535 |
|
* @see LayoutManager |
1536 |
*/ |
*/ |
1537 |
public void doLayout() |
public void doLayout() |
1538 |
{ |
{ |
1540 |
} |
} |
1541 |
|
|
1542 |
/** |
/** |
1543 |
* Calls the layout manager to re-layout the component. This is called |
* Calls the layout manager to re-layout the component. This is called |
1544 |
* during validation of a container in most cases. |
* during validation of a container in most cases. |
1545 |
* |
* |
1546 |
* @deprecated This method is deprecated in favor of <code>doLayout()</code>. |
* @deprecated use {@link #doLayout()} instead |
1547 |
*/ |
*/ |
1548 |
public void layout() |
public void layout() |
1549 |
{ |
{ |
1551 |
} |
} |
1552 |
|
|
1553 |
/** |
/** |
1554 |
* Called to ensure that the layout for this component is valid. |
* Called to ensure that the layout for this component is valid. This is |
1555 |
|
* usually called on containers. |
1556 |
|
* |
1557 |
|
* @see #invalidate() |
1558 |
|
* @see #doLayout() |
1559 |
|
* @see LayoutManager |
1560 |
|
* @see Container#validate() |
1561 |
*/ |
*/ |
1562 |
public void validate() |
public void validate() |
1563 |
{ |
{ |
1565 |
} |
} |
1566 |
|
|
1567 |
/** |
/** |
1568 |
* Invalidates this component and all of its parent components. This will |
* Invalidates this component and all of its parent components. This will |
1569 |
* cause them to have their layout redone. |
* cause them to have their layout redone. This is called frequently, so |
1570 |
|
* make it fast. |
1571 |
*/ |
*/ |
1572 |
public void invalidate() |
public void invalidate() |
1573 |
{ |
{ |
1574 |
valid = false; |
valid = false; |
1575 |
|
prefSize = null; |
1576 |
if ((parent != null) && parent.valid) |
minSize = null; |
1577 |
parent.invalidate (); |
if (parent != null && parent.valid) |
1578 |
|
parent.invalidate(); |
1579 |
} |
} |
1580 |
|
|
1581 |
/** |
/** |
1582 |
* Returns a graphics object for this component. Returns <code>null</code> |
* Returns a graphics object for this component. Returns <code>null</code> |
1583 |
* if this component is not currently displayed on the screen. |
* if this component is not currently displayed on the screen. |
1584 |
* |
* |
1585 |
* @return A graphics object for this component. |
* @return a graphics object for this component |
1586 |
|
* @see #paint(Graphics) |
1587 |
*/ |
*/ |
1588 |
public Graphics getGraphics() |
public Graphics getGraphics() |
1589 |
{ |
{ |
1592 |
Graphics gfx = peer.getGraphics(); |
Graphics gfx = peer.getGraphics(); |
1593 |
if (gfx != null) |
if (gfx != null) |
1594 |
return gfx; |
return gfx; |
|
|
|
1595 |
// create graphics for lightweight: |
// create graphics for lightweight: |
1596 |
Container parent = getParent(); |
Container parent = getParent(); |
1597 |
if (parent != null) |
if (parent != null) |
1609 |
/** |
/** |
1610 |
* Returns the font metrics for the specified font in this component. |
* Returns the font metrics for the specified font in this component. |
1611 |
* |
* |
1612 |
* @param font The font to retrieve metrics for. |
* @param font the font to retrieve metrics for |
1613 |
* |
* @return the font metrics for the specified font |
1614 |
* @return The font metrics for the specified font. |
* @throws NullPointerException if font is null |
1615 |
|
* @see #getFont() |
1616 |
|
* @see Toolkit#getFontMetrics(Font) |
1617 |
*/ |
*/ |
1618 |
public FontMetrics getFontMetrics(Font font) |
public FontMetrics getFontMetrics(Font font) |
1619 |
{ |
{ |
1620 |
if (peer == null) |
return peer == null ? getToolkit().getFontMetrics(font) |
1621 |
return getToolkit().getFontMetrics(font); |
: peer.getFontMetrics(font); |
|
return peer.getFontMetrics (font); |
|
1622 |
} |
} |
1623 |
|
|
1624 |
/** |
/** |
1625 |
* Sets the cursor for this component to the specified cursor. |
* Sets the cursor for this component to the specified cursor. The cursor |
1626 |
* |
* is displayed when the point is contained by the component, and the |
1627 |
* @param cursor The new cursor for this component. |
* component is visible, displayable, and enabled. This is inherited by |
1628 |
|
* subcomponents unless they set their own cursor. |
1629 |
|
* |
1630 |
|
* @param cursor the new cursor for this component |
1631 |
|
* @see #isEnabled() |
1632 |
|
* @see #isShowing() |
1633 |
|
* @see #getCursor() |
1634 |
|
* @see #contains(int, int) |
1635 |
|
* @see Toolkit#createCustomCursor(Image, Point, String) |
1636 |
*/ |
*/ |
1637 |
public void setCursor(Cursor cursor) |
public void setCursor(Cursor cursor) |
1638 |
{ |
{ |
1639 |
this.cursor = cursor; |
this.cursor = cursor; |
1640 |
if (peer != null) |
if (peer != null) |
1641 |
peer.setCursor (cursor); |
peer.setCursor(cursor); |
1642 |
} |
} |
1643 |
|
|
1644 |
/** |
/** |
1645 |
* Returns the cursor for this component. |
* Returns the cursor for this component. If not set, this is inherited |
1646 |
|
* from the parent, or from Cursor.getDefaultCursor(). |
1647 |
* |
* |
1648 |
* @return The cursor for this component. |
* @return the cursor for this component |
1649 |
*/ |
*/ |
1650 |
public Cursor getCursor() |
public Cursor getCursor() |
1651 |
{ |
{ |
1652 |
return this.cursor; |
if (cursor != null) |
1653 |
|
return cursor; |
1654 |
|
return parent != null ? parent.getCursor() : Cursor.getDefaultCursor(); |
1655 |
} |
} |
1656 |
|
|
1657 |
/** |
/** |
1658 |
* Paints this component on the screen. The clipping region in the |
* Tests if the cursor was explicitly set, or just inherited from the parent. |
|
* graphics context will indicate the region that requires painting. |
|
1659 |
* |
* |
1660 |
* @param graphics The graphics context for this paint job. |
* @return true if the cursor has been set |
1661 |
|
* @since 1.4 |
1662 |
*/ |
*/ |
1663 |
public void paint(Graphics g) |
public boolean isCursorSet() |
1664 |
{ |
{ |
1665 |
|
return cursor != null; |
1666 |
} |
} |
1667 |
|
|
1668 |
/** |
/** |
1669 |
* Updates this component. This method fills the component |
* Paints this component on the screen. The clipping region in the graphics |
1670 |
* with the background color, then sets the foreground color of the |
* context will indicate the region that requires painting. This is called |
1671 |
* specified graphics context to the foreground color of this component |
* whenever the component first shows, or needs to be repaired because |
1672 |
* and calls the <code>paint()</code> method. |
* something was temporarily drawn on top. It is not necessary for |
1673 |
* // FIXME: What are the coords relative to? |
* subclasses to call <code>super.paint(g)</code>. Components with no area |
1674 |
|
* are not painted. |
1675 |
* |
* |
1676 |
* @param graphics The graphics context for this update. |
* @param g the graphics context for this paint job |
1677 |
|
* @see #update(Graphics) |
1678 |
|
*/ |
1679 |
|
public void paint(Graphics g) |
1680 |
|
{ |
1681 |
|
} |
1682 |
|
|
1683 |
|
/** |
1684 |
|
* Updates this component. This is called in response to |
1685 |
|
* <code>repaint</code>. This method fills the component with the |
1686 |
|
* background color, then sets the foreground color of the specified |
1687 |
|
* graphics context to the foreground color of this component and calls |
1688 |
|
* the <code>paint()</code> method. The coordinates of the graphics are |
1689 |
|
* relative to this component. Subclasses should call either |
1690 |
|
* <code>super.update(g)</code> or <code>paint(g)</code>. |
1691 |
|
* |
1692 |
|
* @param graphics the graphics context for this update |
1693 |
|
* @see #paint(Graphics) |
1694 |
|
* @see #repaint() |
1695 |
*/ |
*/ |
1696 |
public void update(Graphics g) |
public void update(Graphics g) |
1697 |
{ |
{ |
1701 |
/** |
/** |
1702 |
* Paints this entire component, including any sub-components. |
* Paints this entire component, including any sub-components. |
1703 |
* |
* |
1704 |
* @param graphics The graphics context for this paint job. |
* @param graphics the graphics context for this paint job |
1705 |
|
* @see #paint(Graphics) |
1706 |
*/ |
*/ |
1707 |
public void paintAll(Graphics g) |
public void paintAll(Graphics g) |
1708 |
{ |
{ |
1709 |
if (!visible) |
if (! visible) |
1710 |
return; |
return; |
|
|
|
1711 |
if (peer != null) |
if (peer != null) |
1712 |
peer.paint(g); |
peer.paint(g); |
1713 |
paint(g); |
paint(g); |
1714 |
} |
} |
1715 |
|
|
1716 |
/** |
/** |
1717 |
* Repaint this entire component. The <code>update()</code> method |
* Repaint this entire component. The <code>update()</code> method |
1718 |
* on this component will be called as soon as possible. |
* on this component will be called as soon as possible. |
1719 |
* // FIXME: What are the coords relative to? |
* |
1720 |
|
* @see #update(Graphics) |
1721 |
|
* @see #repaint(long, int, int, int, int) |
1722 |
*/ |
*/ |
1723 |
public void repaint() |
public void repaint() |
1724 |
{ |
{ |
1725 |
repaint(0, 0, 0, getWidth(), getHeight()); |
repaint(0, 0, 0, width, height); |
1726 |
} |
} |
1727 |
|
|
1728 |
/** |
/** |
1729 |
* Repaint this entire component. The <code>update()</code> method |
* Repaint this entire component. The <code>update()</code> method on this |
1730 |
* on this component will be called in approximate the specified number |
* component will be called in approximate the specified number of |
1731 |
* of milliseconds. |
* milliseconds. |
|
* // FIXME: What are the coords relative to? |
|
1732 |
* |
* |
1733 |
* @param tm The number of milliseconds before this component should |
* @param tm milliseconds before this component should be repainted |
1734 |
* be repainted. |
* @see #paint(Graphics) |
1735 |
|
* @see #repaint(long, int, int, int, int) |
1736 |
*/ |
*/ |
1737 |
public void repaint(long tm) |
public void repaint(long tm) |
1738 |
{ |
{ |
1739 |
repaint(tm, 0, 0, getWidth(), getHeight()); |
repaint(tm, 0, 0, width, height); |
1740 |
} |
} |
1741 |
|
|
1742 |
/** |
/** |
1743 |
* Repaints the specified rectangular region within this component. |
* Repaints the specified rectangular region within this component. The |
1744 |
* This <code>update</code> method on this component will be called as |
* <code>update</code> method on this component will be called as soon as |
1745 |
* soon as possible. |
* possible. The coordinates are relative to this component. |
|
* // FIXME: What are the coords relative to? |
|
1746 |
* |
* |
1747 |
* @param x The X coordinate of the upper left of the region to repaint |
* @param x the X coordinate of the upper left of the region to repaint |
1748 |
* @param y The Y coordinate of the upper left of the region to repaint |
* @param y the Y coordinate of the upper left of the region to repaint |
1749 |
* @param width The width of the region to repaint. |
* @param w the width of the region to repaint |
1750 |
* @param height The height of the region to repaint. |
* @param h the height of the region to repaint |
1751 |
|
* @see #update(Graphics) |
1752 |
|
* @see #repaint(long, int, int, int, int) |
1753 |
*/ |
*/ |
1754 |
public void repaint(int x, int y, int width, int height) |
public void repaint(int x, int y, int w, int h) |
1755 |
{ |
{ |
1756 |
repaint(0, x, y, width, height); |
repaint(0, x, y, w, h); |
1757 |
} |
} |
1758 |
|
|
1759 |
/** |
/** |
1760 |
* Repaints the specified rectangular region within this component. |
* Repaints the specified rectangular region within this component. The |
1761 |
* This <code>update</code> method on this component will be called in |
* <code>update</code> method on this component will be called in |
1762 |
* approximately the specified number of milliseconds. |
* approximately the specified number of milliseconds. The coordinates |
1763 |
* // FIXME: What are the coords relative to? |
* are relative to this component. |
1764 |
* |
* |
1765 |
* @param tm The number of milliseconds before this component should |
* @param tm milliseconds before this component should be repainted |
1766 |
* be repainted. |
* @param x the X coordinate of the upper left of the region to repaint |
1767 |
* @param x The X coordinate of the upper left of the region to repaint |
* @param y the Y coordinate of the upper left of the region to repaint |
1768 |
* @param y The Y coordinate of the upper left of the region to repaint |
* @param w the width of the region to repaint |
1769 |
* @param width The width of the region to repaint. |
* @param h the height of the region to repaint |
1770 |
* @param height The height of the region to repaint. |
* @see #update(Graphics) |
1771 |
*/ |
*/ |
1772 |
public void repaint(long tm, int x, int y, int width, int height) |
public void repaint(long tm, int x, int y, int width, int height) |
1773 |
{ |
{ |
1774 |
// Handle lightweight repainting by forwarding to native parent |
// Handle lightweight repainting by forwarding to native parent |
1775 |
if (isLightweight() && (parent != null)) |
if (isLightweight() && parent != null) |
1776 |
{ |
{ |
1777 |
if (parent != null) |
if (parent != null) |
1778 |
parent.repaint(tm, x+getX(), y+getY(), width, height); |
parent.repaint(tm, x + getX(), y + getY(), width, height); |
|
return; |
|
1779 |
} |
} |
1780 |
|
else if (peer != null) |
|
if (peer != null) |
|
1781 |
peer.repaint(tm, x, y, width, height); |
peer.repaint(tm, x, y, width, height); |
1782 |
} |
} |
1783 |
|
|
1784 |
/** |
/** |
1785 |
* Prints this component. This method is |
* Prints this component. This method is provided so that printing can be |
1786 |
* provided so that printing can be done in a different manner from |
* done in a different manner from painting. However, the implementation |
1787 |
* painting. However, the implementation in this class simply calls |
* in this class simply calls the <code>paint()</code> method. |
|
* the <code>paint()</code> method. |
|
1788 |
* |
* |
1789 |
* @param graphics The graphics context of the print device. |
* @param graphics the graphics context of the print device |
1790 |
|
* @see #paint(Graphics) |
1791 |
*/ |
*/ |
1792 |
public void print(Graphics g) |
public void print(Graphics g) |
1793 |
{ |
{ |
1795 |
} |
} |
1796 |
|
|
1797 |
/** |
/** |
1798 |
* Prints this component, including all sub-components. This method is |
* Prints this component, including all sub-components. This method is |
1799 |
* provided so that printing can be done in a different manner from |
* provided so that printing can be done in a different manner from |
1800 |
* painting. However, the implementation in this class simply calls |
* painting. However, the implementation in this class simply calls the |
1801 |
* the <code>paintAll()</code> method. |
* <code>paintAll()</code> method. |
1802 |
* |
* |
1803 |
* @param graphics The graphics context of the print device. |
* @param graphics the graphics context of the print device |
1804 |
|
* @see #paintAll(Graphics) |
1805 |
*/ |
*/ |
1806 |
public void printAll(Graphics g) |
public void printAll(Graphics g) |
1807 |
{ |
{ |
1809 |
} |
} |
1810 |
|
|
1811 |
/** |
/** |
1812 |
* Called when an image has changed so that this component is |
* Called when an image has changed so that this component is repainted. |
1813 |
* repainted. |
* This incrementally draws an image as more bits are available, when |
1814 |
* |
* possible. Incremental drawing is enabled if the system property |
1815 |
* @param image The image that has been updated. |
* <code>awt.image.incrementalDraw</code> is not present or is true, in which |
1816 |
* @param flags Flags as specified in <code>ImageObserver</code>. |
* case the redraw rate is set to 100ms or the value of the system property |
1817 |
* @param x The X coordinate |
* <code>awt.image.redrawrate</code>. |
1818 |
* @param y The Y coordinate |
* |
1819 |
* @param width The width |
* <p>The coordinate system used depends on the particular flags. |
1820 |
* @param height The height |
* |
1821 |
* |
* @param image the image that has been updated |
1822 |
* @return <code>true</code> if the image has been fully loaded, |
* @param flags tlags as specified in <code>ImageObserver</code> |
1823 |
* <code>false</code> otherwise. |
* @param x the X coordinate |
1824 |
|
* @param y the Y coordinate |
1825 |
|
* @param w the width |
1826 |
|
* @param h the height |
1827 |
|
* @return true if the image has been fully loaded |
1828 |
|
* @see ImageObserver |
1829 |
|
* @see Graphics#drawImage(Image, int, int, Color, ImageObserver) |
1830 |
|
* @see Graphics#drawImage(Image, int, int, ImageObserver) |
1831 |
|
* @see Graphics#drawImage(Image, int, int, int, int, Color, ImageObserver) |
1832 |
|
* @see Graphics#drawImage(Image, int, int, int, int, ImageObserver) |
1833 |
|
* @see ImageObserver#update(Image, int, int, int, int, int) |
1834 |
*/ |
*/ |
1835 |
public boolean imageUpdate (Image img, int infoflags, int x, int y, |
public boolean imageUpdate(Image img, int flags, int x, int y, int w, int h) |
|
int w, int h) |
|
1836 |
{ |
{ |
1837 |
// FIXME |
// XXX Implement. |
1838 |
return false; |
throw new Error("not implemented"); |
1839 |
} |
} |
1840 |
|
|
1841 |
/** |
/** |
1842 |
* Creates an image from the specified producer. |
* Creates an image from the specified producer. |
1843 |
* |
* |
1844 |
* @param producer The image procedure to create the image from. |
* @param producer the image procedure to create the image from |
1845 |
* |
* @return the resulting image |
|
* @return The resulting image. |
|
1846 |
*/ |
*/ |
1847 |
public Image createImage(ImageProducer producer) |
public Image createImage(ImageProducer producer) |
1848 |
{ |
{ |
1849 |
|
// XXX What if peer or producer is null? |
1850 |
return peer.createImage(producer); |
return peer.createImage(producer); |
1851 |
} |
} |
1852 |
|
|
1853 |
/** |
/** |
1854 |
* Creates an image with the specified width and height for use in |
* Creates an image with the specified width and height for use in |
1855 |
* double buffering. |
* double buffering. Headless environments do not support images. |
1856 |
* |
* |
1857 |
* @param width The width of the image. |
* @param width the width of the image |
1858 |
* @param height The height of the image. |
* @param height the height of the image |
1859 |
* |
* @return the requested image, or null if it is not supported |
|
* @return The requested image. |
|
1860 |
*/ |
*/ |
1861 |
public Image createImage(int width, int height) |
public Image createImage(int width, int height) |
1862 |
{ |
{ |
1863 |
return getGraphicsConfiguration().createCompatibleImage(width, height); |
if (GraphicsEnvironment.isHeadless()) |
1864 |
|
return null; |
1865 |
|
GraphicsConfiguration config = getGraphicsConfiguration(); |
1866 |
|
return config == null ? null : config.createCompatibleImage(width, height); |
1867 |
} |
} |
1868 |
|
|
1869 |
/** |
/** |
1870 |
* Prepares the specified image for rendering on this component. |
* Creates an image with the specified width and height for use in |
1871 |
|
* double buffering. Headless environments do not support images. |
1872 |
* |
* |
1873 |
* @param image The image to prepare for rendering. |
* @param width the width of the image |
1874 |
* @param observer The image observer to notify of the status of the |
* @param height the height of the image |
1875 |
* image preparation. |
* @return the requested image, or null if it is not supported |
1876 |
|
* @since 1.4 |
1877 |
|
*/ |
1878 |
|
public VolatileImage createVolatileImage(int width, int height) |
1879 |
|
{ |
1880 |
|
if (GraphicsEnvironment.isHeadless()) |
1881 |
|
return null; |
1882 |
|
GraphicsConfiguration config = getGraphicsConfiguration(); |
1883 |
|
return config == null ? null |
1884 |
|
: config.createCompatibleVolatileImage(width, height); |
1885 |
|
} |
1886 |
|
|
1887 |
|
/** |
1888 |
|
* Creates an image with the specified width and height for use in |
1889 |
|
* double buffering. Headless environments do not support images. The image |
1890 |
|
* will support the specified capabilities. |
1891 |
|
* |
1892 |
|
* @param width the width of the image |
1893 |
|
* @param height the height of the image |
1894 |
|
* @param caps the requested capabilities |
1895 |
|
* @return the requested image, or null if it is not supported |
1896 |
|
* @throws AWTException if a buffer with the capabilities cannot be created |
1897 |
|
* @since 1.4 |
1898 |
|
*/ |
1899 |
|
public VolatileImage createVolatileImage(int width, int height, |
1900 |
|
ImageCapabilities caps) |
1901 |
|
throws AWTException |
1902 |
|
{ |
1903 |
|
if (GraphicsEnvironment.isHeadless()) |
1904 |
|
return null; |
1905 |
|
GraphicsConfiguration config = getGraphicsConfiguration(); |
1906 |
|
return config == null ? null |
1907 |
|
: config.createCompatibleVolatileImage(width, height, caps); |
1908 |
|
} |
1909 |
|
|
1910 |
|
/** |
1911 |
|
* Prepares the specified image for rendering on this component. |
1912 |
* |
* |
1913 |
* @return <code>true</code> if the image is already fully prepared |
* @param image the image to prepare for rendering |
1914 |
* for rendering, <code>false</code> otherwise. |
* @param observer the observer to notify of image preparation status |
1915 |
|
* @return true if the image is already fully prepared |
1916 |
|
* @throws NullPointerException if image is null |
1917 |
*/ |
*/ |
1918 |
public boolean prepareImage(Image image, ImageObserver observer) |
public boolean prepareImage(Image image, ImageObserver observer) |
1919 |
{ |
{ |
1920 |
return prepareImage(image, image.getWidth(observer), |
return prepareImage(image, image.getWidth(observer), |
1921 |
image.getHeight(observer), observer); |
image.getHeight(observer), observer); |
1922 |
} |
} |
1923 |
|
|
1925 |
* Prepares the specified image for rendering on this component at the |
* Prepares the specified image for rendering on this component at the |
1926 |
* specified scaled width and height |
* specified scaled width and height |
1927 |
* |
* |
1928 |
* @param image The image to prepare for rendering. |
* @param image the image to prepare for rendering |
1929 |
* @param width The scaled width of the image. |
* @param width the scaled width of the image |
1930 |
* @param height The scaled height of the image. |
* @param height the scaled height of the image |
1931 |
* @param observer The image observer to notify of the status of the |
* @param observer the observer to notify of image preparation status |
1932 |
* image preparation. |
* @return true if the image is already fully prepared |
|
* |
|
|
* @return <code>true</code> if the image is already fully prepared |
|
|
* for rendering, <code>false</code> otherwise. |
|
1933 |
*/ |
*/ |
1934 |
public boolean prepareImage(Image image, int width, int height, |
public boolean prepareImage(Image image, int width, int height, |
1935 |
ImageObserver observer) |
ImageObserver observer) |
1941 |
* Returns the status of the loading of the specified image. The value |
* Returns the status of the loading of the specified image. The value |
1942 |
* returned will be those flags defined in <code>ImageObserver</code>. |
* returned will be those flags defined in <code>ImageObserver</code>. |
1943 |
* |
* |
1944 |
* @param image The image to check on. |
* @param image the image to check on |
1945 |
* @param observer The observer to be notified as the image loading |
* @param observer the observer to notify of image loading progress |
1946 |
* progresses. |
* @return the image observer flags indicating the status of the load |
1947 |
* |
* @see #prepareImage(Image, int, int, ImageObserver) |
1948 |
* @return The image observer flags indicating the status of the load. |
* @see #Toolkit#checkImage(Image, int, int, ImageObserver) |
1949 |
|
* @throws NullPointerException if image is null |
1950 |
*/ |
*/ |
1951 |
public int checkImage(Image image, ImageObserver observer) |
public int checkImage(Image image, ImageObserver observer) |
1952 |
{ |
{ |
1953 |
return checkImage(image, image.getWidth(observer), |
return checkImage(image, image.getWidth(observer), |
1954 |
image.getHeight(observer), observer); |
image.getHeight(observer), observer); |
1955 |
} |
} |
1956 |
|
|
1958 |
* Returns the status of the loading of the specified image. The value |
* Returns the status of the loading of the specified image. The value |
1959 |
* returned will be those flags defined in <code>ImageObserver</code>. |
* returned will be those flags defined in <code>ImageObserver</code>. |
1960 |
* |
* |
1961 |
* @param image The image to check on. |
* @param image the image to check on |
1962 |
* @param width The scaled image width. |
* @param width the scaled image width |
1963 |
* @param height The scaled image height. |
* @param height the scaled image height |
1964 |
* @param observer The observer to be notified as the image loading |
* @param observer the observer to notify of image loading progress |
1965 |
* progresses. |
* @return the image observer flags indicating the status of the load |
1966 |
* |
* @see #prepareImage(Image, int, int, ImageObserver) |
1967 |
* @return The image observer flags indicating the status of the load. |
* @see #Toolkit#checkImage(Image, int, int, ImageObserver) |
1968 |
*/ |
*/ |
1969 |
public int checkImage (Image image, int width, int height, |
public int checkImage(Image image, int width, int height, |
1970 |
ImageObserver observer) |
ImageObserver observer) |
1971 |
{ |
{ |
1972 |
if (peer != null) |
if (peer != null) |
1973 |
return peer.checkImage (image, width, height, observer); |
return peer.checkImage(image, width, height, observer); |
1974 |
return getToolkit ().checkImage (image, width, height, observer); |
return getToolkit().checkImage(image, width, height, observer); |
1975 |
} |
} |
1976 |
|
|
1977 |
/** |
/** |
1978 |
* Tests whether or not the specified point is contained within this |
* Sets whether paint messages delivered by the operating system should be |
1979 |
* component. Coordinates are relative to this component. |
* ignored. This does not affect messages from AWT, except for those |
1980 |
|
* triggered by OS messages. Setting this to true can allow faster |
1981 |
|
* performance in full-screen mode or page-flipping. |
1982 |
* |
* |
1983 |
* @param x The X coordinate of the point to test. |
* @param ignoreRepaint the new setting for ignoring repaint events |
1984 |
* @param y The Y coordinate of the point to test. |
* @see #getIgnoreRepaint() |
1985 |
|
* @see BufferStrategy |
1986 |
|
* @see GraphicsDevice.setFullScreenWindow(Window) |
1987 |
|
* @since 1.4 |
1988 |
|
*/ |
1989 |
|
public void setIgnoreRepaint(boolean ignoreRepaint) |
1990 |
|
{ |
1991 |
|
this.ignoreRepaint = ignoreRepaint; |
1992 |
|
} |
1993 |
|
|
1994 |
|
/** |
1995 |
|
* Test whether paint events from the operating system are ignored. |
1996 |
* |
* |
1997 |
* @return <code>true</code> if the point is within this component, |
* @return the status of ignoring paint events |
1998 |
* <code>false</code> otherwise. |
* @see #setIgnoreRepaint(boolean) |
1999 |
|
* @since 1.4 |
2000 |
*/ |
*/ |
2001 |
public boolean contains (int x, int y) |
public boolean getIgnoreRepaint() |
2002 |
{ |
{ |
2003 |
return (x >= 0) && (y >= 0) && (x < width) && (y < height); |
return ignoreRepaint; |
2004 |
} |
} |
2005 |
|
|
2006 |
/** |
/** |
2007 |
* Tests whether or not the specified point is contained within this |
* Tests whether or not the specified point is contained within this |
2008 |
* component. Coordinates are relative to this component. |
* component. Coordinates are relative to this component. |
|
* |
|
|
* @param x The X coordinate of the point to test. |
|
|
* @param y The Y coordinate of the point to test. |
|
2009 |
* |
* |
2010 |
* @return <code>true</code> if the point is within this component, |
* @param x the X coordinate of the point to test |
2011 |
* <code>false</code> otherwise. |
* @param y the Y coordinate of the point to test |
2012 |
|
* @return true if the point is within this component |
2013 |
|
* @see #getComponentAt(int, int) |
2014 |
|
*/ |
2015 |
|
public boolean contains(int x, int y) |
2016 |
|
{ |
2017 |
|
return x >= 0 && y >= 0 && x < width && y < height; |
2018 |
|
} |
2019 |
|
|
2020 |
|
/** |
2021 |
|
* Tests whether or not the specified point is contained within this |
2022 |
|
* component. Coordinates are relative to this component. |
2023 |
* |
* |
2024 |
* @deprecated Deprecated in favor of <code>contains(int, int)</code>. |
* @param x the X coordinate of the point to test |
2025 |
|
* @param y the Y coordinate of the point to test |
2026 |
|
* @return true if the point is within this component |
2027 |
|
* @deprecated use {@link #contains(int, int)} instead |
2028 |
*/ |
*/ |
2029 |
public boolean inside(int x, int y) |
public boolean inside(int x, int y) |
2030 |
{ |
{ |
2031 |
return contains(x,y); |
return contains(x, y); |
2032 |
} |
} |
2033 |
|
|
2034 |
/** |
/** |
2035 |
* Tests whether or not the specified point is contained within this |
* Tests whether or not the specified point is contained within this |
2036 |
* component. Coordinates are relative to this component. |
* component. Coordinates are relative to this component. |
|
* |
|
|
* @param point The point to test. |
|
2037 |
* |
* |
2038 |
* @return <code>true</code> if the point is within this component, |
* @param p the point to test |
2039 |
* <code>false</code> otherwise. |
* @return true if the point is within this component |
2040 |
|
* @throws NullPointerException if p is null |
2041 |
|
* @see #getComponentAt(Point) |
2042 |
|
* @since 1.1 |
2043 |
*/ |
*/ |
2044 |
public boolean contains(Point p) |
public boolean contains(Point p) |
2045 |
{ |
{ |
2047 |
} |
} |
2048 |
|
|
2049 |
/** |
/** |
2050 |
* Returns the component occupying the position (x,y). This will either |
* Returns the component occupying the position (x,y). This will either |
2051 |
* be this component, an immediate child component, or <code>null</code> |
* be this component, an immediate child component, or <code>null</code> |
2052 |
* if neither of the first two occupies the specified location. |
* if neither of the first two occupies the specified location. |
2053 |
* |
* |
2054 |
* @param x The X coordinate to search for components at. |
* @param x the X coordinate to search for components at |
2055 |
* @param y The Y coordinate to search for components at. |
* @param y the Y coordinate to search for components at |
2056 |
* |
* @return the component at the specified location, or null |
2057 |
* @return The component at the specified location, for <code>null</code> |
* @see #contains(int, int) |
|
* if there is none. |
|
2058 |
*/ |
*/ |
2059 |
public Component getComponentAt(int x, int y) |
public Component getComponentAt(int x, int y) |
2060 |
{ |
{ |
2061 |
if (contains(x,y)) |
return contains(x, y) ? this : null; |
|
return this; |
|
|
return null; |
|
2062 |
} |
} |
2063 |
|
|
2064 |
/** |
/** |
2065 |
* Returns the component occupying the position (x,y). This will either |
* Returns the component occupying the position (x,y). This will either |
2066 |
* be this component, an immediate child component, or <code>null</code> |
* be this component, an immediate child component, or <code>null</code> |
2067 |
* if neither of the first two occupies the specified location. |
* if neither of the first two occupies the specified location. |
2068 |
* |
* |
2069 |
* @param x The X coordinate to search for components at. |
* @param x the X coordinate to search for components at |
2070 |
* @param y The Y coordinate to search for components at. |
* @param y the Y coordinate to search for components at |
2071 |
* |
* @return the component at the specified location, or null |
2072 |
* @return The component at the specified location, for <code>null</code> |
* @deprecated use {@link #getComponentAt(int, int)} instead |
|
* if there is none. |
|
|
* |
|
|
* @deprecated The method is deprecated in favor of |
|
|
* <code>getComponentAt()</code>. |
|
2073 |
*/ |
*/ |
2074 |
public Component locate(int x, int y) |
public Component locate(int x, int y) |
2075 |
{ |
{ |
2077 |
} |
} |
2078 |
|
|
2079 |
/** |
/** |
2080 |
* Returns the component occupying the specified point This will either |
* Returns the component occupying the position (x,y). This will either |
2081 |
* be this component, an immediate child component, or <code>null</code> |
* be this component, an immediate child component, or <code>null</code> |
2082 |
* if neither of the first two occupies the specified location. |
* if neither of the first two occupies the specified location. |
2083 |
* |
* |
2084 |
* @param point The point to search for components at. |
* @param p the point to search for components at |
2085 |
* |
* @return the component at the specified location, or null |
2086 |
* @return The component at the specified location, for <code>null</code> |
* @throws NullPointerException if p is null |
2087 |
* if there is none. |
* @see #contains(Point) |
2088 |
|
* @since 1.1 |
2089 |
*/ |
*/ |
2090 |
public Component getComponentAt(Point p) |
public Component getComponentAt(Point p) |
2091 |
{ |
{ |
2095 |
/** |
/** |
2096 |
* AWT 1.0 event dispatcher. |
* AWT 1.0 event dispatcher. |
2097 |
* |
* |
2098 |
* @deprecated Deprecated in favor of <code>dispatchEvent()</code>. |
* @param e the event to dispatch |
2099 |
|
* @deprecated use {@link #dispatchEvent(AWTEvent)} instead |
2100 |
*/ |
*/ |
2101 |
public void deliverEvent(Event e) |
public void deliverEvent(Event e) |
2102 |
{ |
{ |
2103 |
|
// XXX Add backward compatibility handling. |
2104 |
} |
} |
2105 |
|
|
2106 |
/** Forward AWT events to processEvent() if: |
/** |
2107 |
* - Events have been enabled for this type of event via enableEvents(), |
* Forwards AWT events to processEvent() if:<ul> |
2108 |
* OR: |
* <li>Events have been enabled for this type of event via |
2109 |
* - There is at least one registered listener for this type of event |
* <code>enableEvents()</code></li>, |
2110 |
* |
* <li>There is at least one registered listener for this type of event</li> |
2111 |
* @param event The event to dispatch |
* </ul> |
2112 |
* |
* |
2113 |
* @specnote This method is final, but we need to be able to |
* @param e the event to dispatch |
2114 |
* override it in order to handle other event types in our |
*/ |
|
* subclasses. The solution is to define a second, non-final |
|
|
* method - dispatchEventImpl() - to actually do the work. |
|
|
* Investigations with Thread.dumpStack() on the dispatch thread |
|
|
* in JDK 1.3 show Sun's implementation is doing the same |
|
|
* thing. |
|
|
*/ |
|
2115 |
public final void dispatchEvent(AWTEvent e) |
public final void dispatchEvent(AWTEvent e) |
2116 |
{ |
{ |
2117 |
|
// Some subclasses in the AWT package need to override this behavior, |
2118 |
|
// hence the use of dispatchEventImpl(). |
2119 |
dispatchEventImpl(e); |
dispatchEventImpl(e); |
2120 |
|
if (peer != null && ! e.consumed) |
|
/* Give the peer a chance to handle the event. */ |
|
|
if (peer != null) |
|
2121 |
peer.handleEvent(e); |
peer.handleEvent(e); |
2122 |
} |
} |
2123 |
|
|
|
void dispatchEventImpl(AWTEvent e) |
|
|
{ |
|
|
// Make use of event id's in order to avoid multiple instanceof tests. |
|
|
if (e.id <= ComponentEvent.COMPONENT_LAST |
|
|
&& e.id >= ComponentEvent.COMPONENT_FIRST |
|
|
&& (componentListener != null |
|
|
|| (eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0)) |
|
|
processEvent(e); |
|
|
else if (e.id <= KeyEvent.KEY_LAST |
|
|
&& e.id >= KeyEvent.KEY_FIRST |
|
|
&& (keyListener != null |
|
|
|| (eventMask & AWTEvent.KEY_EVENT_MASK) != 0)) |
|
|
processEvent(e); |
|
|
else if (e.id <= MouseEvent.MOUSE_LAST |
|
|
&& e.id >= MouseEvent.MOUSE_FIRST |
|
|
&& (mouseListener != null |
|
|
|| mouseMotionListener != null |
|
|
|| (eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0)) |
|
|
processEvent(e); |
|
|
else if (e.id <= FocusEvent.FOCUS_LAST |
|
|
&& e.id >= FocusEvent.FOCUS_FIRST |
|
|
&& (focusListener != null |
|
|
|| (eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0)) |
|
|
processEvent(e); |
|
|
else if (e.id <= InputMethodEvent.INPUT_METHOD_LAST |
|
|
&& e.id >= InputMethodEvent.INPUT_METHOD_FIRST |
|
|
&& (inputMethodListener != null |
|
|
|| (eventMask & AWTEvent.INPUT_METHOD_EVENT_MASK) != 0)) |
|
|
processEvent(e); |
|
|
else if (e.id <= HierarchyEvent.HIERARCHY_LAST |
|
|
&& e.id >= HierarchyEvent.HIERARCHY_FIRST |
|
|
&& (hierarchyListener != null |
|
|
|| hierarchyBoundsListener != null |
|
|
|| (eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0)) |
|
|
processEvent(e); |
|
|
else if (e.id <= PaintEvent.PAINT_LAST |
|
|
&& e.id >= PaintEvent.PAINT_FIRST |
|
|
&& (eventMask & AWTEvent.PAINT_EVENT_MASK) != 0) |
|
|
processEvent(e); |
|
|
} |
|
|
|
|
2124 |
/** |
/** |
2125 |
* AWT 1.0 event dispatcher. |
* AWT 1.0 event dispatcher. |
2126 |
* |
* |
2127 |
* @deprecated Deprecated in favor of <code>dispatchEvent()</code>. |
* @param e the event to dispatch |
2128 |
|
* @return false: since the method was deprecated, the return has no meaning |
2129 |
|
* @deprecated use {@link #dispatchEvent(AWTEvent)} instead |
2130 |
*/ |
*/ |
2131 |
public boolean postEvent(Event e) |
public boolean postEvent(Event e) |
2132 |
{ |
{ |
2133 |
|
// XXX Add backward compatibility handling. |
2134 |
return false; |
return false; |
2135 |
} |
} |
2136 |
|
|
2137 |
/** |
/** |
2138 |
* Adds the specified listener to this component. |
* Adds the specified listener to this component. This is harmless if the |
2139 |
* |
* listener is null, but if the listener has already been registered, it |
2140 |
* @param listener The new listener to add. |
* will now be registered twice. |
2141 |
|
* |
2142 |
|
* @param listener the new listener to add |
2143 |
|
* @see ComponentEvent |
2144 |
|
* @see #removeComponentListener(ComponentListener) |
2145 |
|
* @see #getComponentListeners() |
2146 |
|
* @since 1.1 |
2147 |
*/ |
*/ |
2148 |
public synchronized void addComponentListener(ComponentListener l) |
public synchronized void addComponentListener(ComponentListener l) |
2149 |
{ |
{ |
2153 |
} |
} |
2154 |
|
|
2155 |
/** |
/** |
2156 |
* Removes the specified listener from the component. |
* Removes the specified listener from the component. This is harmless is |
2157 |
|
* the listener was not previously registered. |
2158 |
* |
* |
2159 |
* @param listener The listener to remove. |
* @param listener the listener to remove |
2160 |
|
* @see ComponentEvent |
2161 |
|
* @see #addComponentListener(ComponentListener) |
2162 |
|
* @see #getComponentListeners() |
2163 |
|
* @since 1.1 |
2164 |
*/ |
*/ |
2165 |
public synchronized void removeComponentListener(ComponentListener l) |
public synchronized void removeComponentListener(ComponentListener l) |
2166 |
{ |
{ |
2168 |
} |
} |
2169 |
|
|
2170 |
/** |
/** |
2171 |
* Adds the specified listener to this component. |
* Returns an array of all specified listeners registered on this component. |
2172 |
* |
* |
2173 |
* @param listener The new listener to add. |
* @return an array of listeners |
2174 |
|
* @see #addComponentListener(ComponentListener) |
2175 |
|
* @see #removeComponentListener(ComponentListener) |
2176 |
|
* @since 1.4 |
2177 |
|
*/ |
2178 |
|
public synchronized ComponentListener[] getComponentListeners() |
2179 |
|
{ |
2180 |
|
return (ComponentListener[]) |
2181 |
|
AWTEventMulticaster.getListeners(componentListener, |
2182 |
|
ComponentListener.class); |
2183 |
|
} |
2184 |
|
|
2185 |
|
/** |
2186 |
|
* Adds the specified listener to this component. This is harmless if the |
2187 |
|
* listener is null, but if the listener has already been registered, it |
2188 |
|
* will now be registered twice. |
2189 |
|
* |
2190 |
|
* @param listener the new listener to add |
2191 |
|
* @see FocusEvent |
2192 |
|
* @see #removeFocusListener(FocusListener) |
2193 |
|
* @see #getFocusListeners() |
2194 |
|
* @since 1.1 |
2195 |
*/ |
*/ |
2196 |
public synchronized void addFocusListener(FocusListener l) |
public synchronized void addFocusListener(FocusListener l) |
2197 |
{ |
{ |
2198 |
focusListener = AWTEventMulticaster.add(focusListener, l); |
focusListener = AWTEventMulticaster.add(focusListener, l); |
2199 |
if (focusListener != null) |
if (focusListener != null) |
2200 |
enableEvents(AWTEvent.FOCUS_EVENT_MASK); |
enableEvents(AWTEvent.FOCUS_EVENT_MASK); |
2201 |
} |
} |
2202 |
|
|
2203 |
/** |
/** |
2204 |
* Removes the specified listener from the component. |
* Removes the specified listener from the component. This is harmless is |
2205 |
|
* the listener was not previously registered. |
2206 |
* |
* |
2207 |
* @param listener The listener to remove. |
* @param listener the listener to remove |
2208 |
|
* @see FocusEvent |
2209 |
|
* @see #addFocusListener(FocusListener) |
2210 |
|
* @see #getFocusListeners() |
2211 |
|
* @since 1.1 |
2212 |
*/ |
*/ |
2213 |
public synchronized void removeFocusListener(FocusListener l) |
public synchronized void removeFocusListener(FocusListener l) |
2214 |
{ |
{ |
2215 |
focusListener = AWTEventMulticaster.remove(focusListener, l); |
focusListener = AWTEventMulticaster.remove(focusListener, l); |
2216 |
} |
} |
2217 |
|
|
2218 |
/** @since 1.3 */ |
/** |
2219 |
|
* Returns an array of all specified listeners registered on this component. |
2220 |
|
* |
2221 |
|
* @return an array of listeners |
2222 |
|
* @see #addFocusListener(FocusListener) |
2223 |
|
* @see #removeFocusListener(FocusListener) |
2224 |
|
* @since 1.4 |
2225 |
|
*/ |
2226 |
|
public synchronized FocusListener[] getFocusListeners() |
2227 |
|
{ |
2228 |
|
return (FocusListener[]) |
2229 |
|
AWTEventMulticaster.getListeners(focusListener, FocusListener.class); |
2230 |
|
} |
2231 |
|
|
2232 |
|
/** |
2233 |
|
* Adds the specified listener to this component. This is harmless if the |
2234 |
|
* listener is null, but if the listener has already been registered, it |
2235 |
|
* will now be registered twice. |
2236 |
|
* |
2237 |
|
* @param listener the new listener to add |
2238 |
|
* @see HierarchyEvent |
2239 |
|
* @see #removeHierarchyListener(HierarchyListener) |
2240 |
|
* @see #getHierarchyListeners() |
2241 |
|
* @since 1.3 |
2242 |
|
*/ |
2243 |
public synchronized void addHierarchyListener(HierarchyListener l) |
public synchronized void addHierarchyListener(HierarchyListener l) |
2244 |
{ |
{ |
2245 |
hierarchyListener = AWTEventMulticaster.add(hierarchyListener, l); |
hierarchyListener = AWTEventMulticaster.add(hierarchyListener, l); |
2246 |
if (hierarchyListener != null) |
if (hierarchyListener != null) |
2247 |
enableEvents(AWTEvent.HIERARCHY_EVENT_MASK); |
enableEvents(AWTEvent.HIERARCHY_EVENT_MASK); |
2248 |
} |
} |
2249 |
|
|
2250 |
/** @since 1.3 */ |
/** |
2251 |
|
* Removes the specified listener from the component. This is harmless is |
2252 |
|
* the listener was not previously registered. |
2253 |
|
* |
2254 |
|
* @param listener the listener to remove |
2255 |
|
* @see HierarchyEvent |
2256 |
|
* @see #addHierarchyListener(HierarchyListener) |
2257 |
|
* @see #getHierarchyListeners() |
2258 |
|
* @since 1.3 |
2259 |
|
*/ |
2260 |
public synchronized void removeHierarchyListener(HierarchyListener l) |
public synchronized void removeHierarchyListener(HierarchyListener l) |
2261 |
{ |
{ |
2262 |
hierarchyListener = AWTEventMulticaster.remove(hierarchyListener, l); |
hierarchyListener = AWTEventMulticaster.remove(hierarchyListener, l); |
2263 |
} |
} |
2264 |
|
|
2265 |
/** @since 1.3 */ |
/** |
2266 |
public synchronized void addHierarchyBoundsListener(HierarchyBoundsListener l) |
* Returns an array of all specified listeners registered on this component. |
2267 |
|
* |
2268 |
|
* @return an array of listeners |
2269 |
|
* @see #addHierarchyListener(HierarchyListener) |
2270 |
|
* @see #removeHierarchyListener(HierarchyListener) |
2271 |
|
* @since 1.4 |
2272 |
|
*/ |
2273 |
|
public synchronized HierarchyListener[] getHierarchyListeners() |
2274 |
{ |
{ |
2275 |
hierarchyBoundsListener = |
return (HierarchyListener[]) |
2276 |
|
AWTEventMulticaster.getListeners(hierarchyListener, |
2277 |
|
HierarchyListener.class); |
2278 |
|
} |
2279 |
|
|
2280 |
|
/** |
2281 |
|
* Adds the specified listener to this component. This is harmless if the |
2282 |
|
* listener is null, but if the listener has already been registered, it |
2283 |
|
* will now be registered twice. |
2284 |
|
* |
2285 |
|
* @param listener the new listener to add |
2286 |
|
* @see HierarchyEvent |
2287 |
|
* @see #removeHierarchyBoundsListener(HierarchyBoundsListener) |
2288 |
|
* @see #getHierarchyBoundsListeners() |
2289 |
|
* @since 1.3 |
2290 |
|
*/ |
2291 |
|
public synchronized void |
2292 |
|
addHierarchyBoundsListener(HierarchyBoundsListener l) |
2293 |
|
{ |
2294 |
|
hierarchyBoundsListener = |
2295 |
AWTEventMulticaster.add(hierarchyBoundsListener, l); |
AWTEventMulticaster.add(hierarchyBoundsListener, l); |
2296 |
if (hierarchyBoundsListener != null) |
if (hierarchyBoundsListener != null) |
2297 |
enableEvents(AWTEvent.HIERARCHY_EVENT_MASK); |
enableEvents(AWTEvent.HIERARCHY_BOUNDS_EVENT_MASK); |
2298 |
} |
} |
2299 |
|
|
2300 |
/** @since 1.3 */ |
/** |
2301 |
public synchronized void |
* Removes the specified listener from the component. This is harmless is |
2302 |
|
* the listener was not previously registered. |
2303 |
|
* |
2304 |
|
* @param listener the listener to remove |
2305 |
|
* @see HierarchyEvent |
2306 |
|
* @see #addHierarchyBoundsListener(HierarchyBoundsListener) |
2307 |
|
* @see #getHierarchyBoundsListeners() |
2308 |
|
* @since 1.3 |
2309 |
|
*/ |
2310 |
|
public synchronized void |
2311 |
removeHierarchyBoundsListener(HierarchyBoundsListener l) |
removeHierarchyBoundsListener(HierarchyBoundsListener l) |
2312 |
{ |
{ |
2313 |
hierarchyBoundsListener = |
hierarchyBoundsListener = |
2314 |
AWTEventMulticaster.remove(hierarchyBoundsListener, l); |
AWTEventMulticaster.remove(hierarchyBoundsListener, l); |
2315 |
} |
} |
2316 |
|
|
2317 |
/** |
/** |
2318 |
* Adds the specified listener to this component. |
* Returns an array of all specified listeners registered on this component. |
2319 |
* |
* |
2320 |
* @param listener The new listener to add. |
* @return an array of listeners |
2321 |
|
* @see #addHierarchyBoundsListener(HierarchyBoundsListener) |
2322 |
|
* @see #removeHierarchyBoundsListener(HierarchyBoundsListener) |
2323 |
|
* @since 1.4 |
2324 |
|
*/ |
2325 |
|
public synchronized HierarchyBoundsListener[] getHierarchyBoundsListeners() |
2326 |
|
{ |
2327 |
|
return (HierarchyBoundsListener[]) |
2328 |
|
AWTEventMulticaster.getListeners(hierarchyBoundsListener, |
2329 |
|
HierarchyBoundsListener.class); |
2330 |
|
} |
2331 |
|
|
2332 |
|
/** |
2333 |
|
* Adds the specified listener to this component. This is harmless if the |
2334 |
|
* listener is null, but if the listener has already been registered, it |
2335 |
|
* will now be registered twice. |
2336 |
|
* |
2337 |
|
* @param listener the new listener to add |
2338 |
|
* @see KeyEvent |
2339 |
|
* @see #removeKeyListener(KeyListener) |
2340 |
|
* @see #getKeyListeners() |
2341 |
|
* @since 1.1 |
2342 |
*/ |
*/ |
2343 |
public synchronized void addKeyListener(KeyListener l) |
public synchronized void addKeyListener(KeyListener l) |
2344 |
{ |
{ |
2345 |
keyListener = AWTEventMulticaster.add(keyListener, l); |
keyListener = AWTEventMulticaster.add(keyListener, l); |
2346 |
if (keyListener != null) |
if (keyListener != null) |
2347 |
enableEvents(AWTEvent.KEY_EVENT_MASK); |
enableEvents(AWTEvent.KEY_EVENT_MASK); |
2348 |
} |
} |
2349 |
|
|
2350 |
/** |
/** |
2351 |
* Removes the specified listener from the component. |
* Removes the specified listener from the component. This is harmless is |
2352 |
|
* the listener was not previously registered. |
2353 |
* |
* |
2354 |
* @param listener The listener to remove. |
* @param listener the listener to remove |
2355 |
|
* @see KeyEvent |
2356 |
|
* @see #addKeyListener(KeyListener) |
2357 |
|
* @see #getKeyListeners() |
2358 |
|
* @since 1.1 |
2359 |
*/ |
*/ |
2360 |
public synchronized void removeKeyListener(KeyListener l) |
public synchronized void removeKeyListener(KeyListener l) |
2361 |
{ |
{ |
2363 |
} |
} |
2364 |
|
|
2365 |
/** |
/** |
2366 |
* Adds the specified listener to this component. |
* Returns an array of all specified listeners registered on this component. |
2367 |
* |
* |
2368 |
* @param listener The new listener to add. |
* @return an array of listeners |
2369 |
|
* @see #addKeyListener(KeyListener) |
2370 |
|
* @see #removeKeyListener(KeyListener) |
2371 |
|
* @since 1.4 |
2372 |
|
*/ |
2373 |
|
public synchronized KeyListener[] getKeyListeners() |
2374 |
|
{ |
2375 |
|
return (KeyListener[]) |
2376 |
|
AWTEventMulticaster.getListeners(keyListener, KeyListener.class); |
2377 |
|
} |
2378 |
|
|
2379 |
|
/** |
2380 |
|
* Adds the specified listener to this component. This is harmless if the |
2381 |
|
* listener is null, but if the listener has already been registered, it |
2382 |
|
* will now be registered twice. |
2383 |
|
* |
2384 |
|
* @param listener the new listener to add |
2385 |
|
* @see MouseEvent |
2386 |
|
* @see #removeMouseListener(MouseListener) |
2387 |
|
* @see #getMouseListeners() |
2388 |
|
* @since 1.1 |
2389 |
*/ |
*/ |
2390 |
public synchronized void addMouseListener(MouseListener l) |
public synchronized void addMouseListener(MouseListener l) |
2391 |
{ |
{ |
2392 |
mouseListener = AWTEventMulticaster.add(mouseListener, l); |
mouseListener = AWTEventMulticaster.add(mouseListener, l); |
2393 |
if (mouseListener != null) |
if (mouseListener != null) |
2394 |
enableEvents(AWTEvent.MOUSE_EVENT_MASK); |
enableEvents(AWTEvent.MOUSE_EVENT_MASK); |
2395 |
} |
} |
2396 |
|
|
2397 |
/** |
/** |
2398 |
* Removes the specified listener from the component. |
* Removes the specified listener from the component. This is harmless is |
2399 |
|
* the listener was not previously registered. |
2400 |
* |
* |
2401 |
* @param listener The listener to remove. |
* @param listener the listener to remove |
2402 |
|
* @see MouseEvent |
2403 |
|
* @see #addMouseListener(MouseListener) |
2404 |
|
* @see #getMouseListeners() |
2405 |
|
* @since 1.1 |
2406 |
*/ |
*/ |
2407 |
public synchronized void removeMouseListener(MouseListener l) |
public synchronized void removeMouseListener(MouseListener l) |
2408 |
{ |
{ |
2409 |
mouseListener = AWTEventMulticaster.remove(mouseListener, l); |
mouseListener = AWTEventMulticaster.remove(mouseListener, l); |
2410 |
|
} |
2411 |
|
|
2412 |
|
/** |
2413 |
|
* Returns an array of all specified listeners registered on this component. |
2414 |
|
* |
2415 |
|
* @return an array of listeners |
2416 |
|
* @see #addMouseListener(MouseListener) |
2417 |
|
* @see #removeMouseListener(MouseListener) |
2418 |
|
* @since 1.4 |
2419 |
|
*/ |
2420 |
|
public synchronized MouseListener[] getMouseListeners() |
2421 |
|
{ |
2422 |
|
return (MouseListener[]) |
2423 |
|
AWTEventMulticaster.getListeners(mouseListener, MouseListener.class); |
2424 |
} |
} |
2425 |
|
|
2426 |
/** |
/** |
2427 |
* Adds the specified listener to this component. |
* Adds the specified listener to this component. This is harmless if the |
2428 |
|
* listener is null, but if the listener has already been registered, it |
2429 |
|
* will now be registered twice. |
2430 |
* |
* |
2431 |
* @param listener The new listener to add. |
* @param listener the new listener to add |
2432 |
|
* @see MouseEvent |
2433 |
|
* @see #removeMouseMotionListener(MouseMotionListener) |
2434 |
|
* @see #getMouseMotionListeners() |
2435 |
|
* @since 1.1 |
2436 |
*/ |
*/ |
2437 |
public synchronized void addMouseMotionListener(MouseMotionListener l) |
public synchronized void addMouseMotionListener(MouseMotionListener l) |
2438 |
{ |
{ |
2439 |
mouseMotionListener = AWTEventMulticaster.add(mouseMotionListener, l); |
mouseMotionListener = AWTEventMulticaster.add(mouseMotionListener, l); |
2440 |
if (mouseMotionListener != null) |
if (mouseMotionListener != null) |
2441 |
enableEvents(AWTEvent.MOUSE_EVENT_MASK); |
enableEvents(AWTEvent.MOUSE_EVENT_MASK); |
2442 |
} |
} |
2443 |
|
|
2444 |
/** |
/** |
2445 |
* Removes the specified listener from the component. |
* Removes the specified listener from the component. This is harmless is |
2446 |
|
* the listener was not previously registered. |
2447 |
* |
* |
2448 |
* @param listener The listener to remove. |
* @param listener the listener to remove |
2449 |
|
* @see MouseEvent |
2450 |
|
* @see #addMouseMotionListener(MouseMotionListener) |
2451 |
|
* @see #getMouseMotionListeners() |
2452 |
|
* @since 1.1 |
2453 |
*/ |
*/ |
2454 |
public synchronized void removeMouseMotionListener(MouseMotionListener l) |
public synchronized void removeMouseMotionListener(MouseMotionListener l) |
2455 |
{ |
{ |
2456 |
mouseMotionListener = AWTEventMulticaster.remove(mouseMotionListener, l); |
mouseMotionListener = AWTEventMulticaster.remove(mouseMotionListener, l); |
2457 |
} |
} |
2458 |
|
|
2459 |
/** @since 1.2 */ |
/** |
2460 |
|
* Returns an array of all specified listeners registered on this component. |
2461 |
|
* |
2462 |
|
* @return an array of listeners |
2463 |
|
* @see #addMouseMotionListener(MouseMotionListener) |
2464 |
|
* @see #removeMouseMotionListener(MouseMotionListener) |
2465 |
|
* @since 1.4 |
2466 |
|
*/ |
2467 |
|
public synchronized MouseMotionListener[] getMouseMotionListeners() |
2468 |
|
{ |
2469 |
|
return (MouseMotionListener[]) |
2470 |
|
AWTEventMulticaster.getListeners(mouseMotionListener, |
2471 |
|
MouseMotionListener.class); |
2472 |
|
} |
2473 |
|
|
2474 |
|
/** |
2475 |
|
* Adds the specified listener to this component. This is harmless if the |
2476 |
|
* listener is null, but if the listener has already been registered, it |
2477 |
|
* will now be registered twice. |
2478 |
|
* |
2479 |
|
* @param listener the new listener to add |
2480 |
|
* @see MouseEvent |
2481 |
|
* @see MouseWheelEvent |
2482 |
|
* @see #removeMouseWheelListener(MouseWheelListener) |
2483 |
|
* @see #getMouseWheelListeners() |
2484 |
|
* @since 1.4 |
2485 |
|
*/ |
2486 |
|
public synchronized void addMouseWheelListener(MouseWheelListener l) |
2487 |
|
{ |
2488 |
|
mouseWheelListener = AWTEventMulticaster.add(mouseWheelListener, l); |
2489 |
|
if (mouseWheelListener != null) |
2490 |
|
enableEvents(AWTEvent.MOUSE_WHEEL_EVENT_MASK); |
2491 |
|
} |
2492 |
|
|
2493 |
|
/** |
2494 |
|
* Removes the specified listener from the component. This is harmless is |
2495 |
|
* the listener was not previously registered. |
2496 |
|
* |
2497 |
|
* @param listener the listener to remove |
2498 |
|
* @see MouseEvent |
2499 |
|
* @see MouseWheelEvent |
2500 |
|
* @see #addMouseWheelListener(MouseWheelListener) |
2501 |
|
* @see #getMouseWheelListeners() |
2502 |
|
* @since 1.4 |
2503 |
|
*/ |
2504 |
|
public synchronized void removeMouseWheelListener(MouseWheelListener l) |
2505 |
|
{ |
2506 |
|
mouseWheelListener = AWTEventMulticaster.remove(mouseWheelListener, l); |
2507 |
|
} |
2508 |
|
|
2509 |
|
/** |
2510 |
|
* Returns an array of all specified listeners registered on this component. |
2511 |
|
* |
2512 |
|
* @return an array of listeners |
2513 |
|
* @see #addMouseWheelListener(MouseWheelListener) |
2514 |
|
* @see #removeMouseWheelListener(MouseWheelListener) |
2515 |
|
* @since 1.4 |
2516 |
|
*/ |
2517 |
|
public synchronized MouseWheelListener[] getMouseWheelListeners() |
2518 |
|
{ |
2519 |
|
return (MouseWheelListener[]) |
2520 |
|
AWTEventMulticaster.getListeners(mouseWheelListener, |
2521 |
|
MouseWheelListener.class); |
2522 |
|
} |
2523 |
|
|
2524 |
|
/** |
2525 |
|
* Adds the specified listener to this component. This is harmless if the |
2526 |
|
* listener is null, but if the listener has already been registered, it |
2527 |
|
* will now be registered twice. |
2528 |
|
* |
2529 |
|
* @param listener the new listener to add |
2530 |
|
* @see InputMethodEvent |
2531 |
|
* @see #removeInputMethodListener(InputMethodListener) |
2532 |
|
* @see #getInputMethodListeners() |
2533 |
|
* @see #getInputMethodRequests() |
2534 |
|
* @since 1.2 |
2535 |
|
*/ |
2536 |
public synchronized void addInputMethodListener(InputMethodListener l) |
public synchronized void addInputMethodListener(InputMethodListener l) |
2537 |
{ |
{ |
2538 |
inputMethodListener = AWTEventMulticaster.add(inputMethodListener, l); |
inputMethodListener = AWTEventMulticaster.add(inputMethodListener, l); |
2539 |
if (inputMethodListener != null) |
if (inputMethodListener != null) |
2540 |
enableEvents(AWTEvent.INPUT_METHOD_EVENT_MASK); |
enableEvents(AWTEvent.INPUT_METHOD_EVENT_MASK); |
2541 |
} |
} |
2542 |
|
|
2543 |
/** @since 1.2 */ |
/** |
2544 |
|
* Removes the specified listener from the component. This is harmless is |
2545 |
|
* the listener was not previously registered. |
2546 |
|
* |
2547 |
|
* @param listener the listener to remove |
2548 |
|
* @see InputMethodEvent |
2549 |
|
* @see #addInputMethodListener(InputMethodListener) |
2550 |
|
* @see #getInputMethodRequests() |
2551 |
|
* @since 1.2 |
2552 |
|
*/ |
2553 |
public synchronized void removeInputMethodListener(InputMethodListener l) |
public synchronized void removeInputMethodListener(InputMethodListener l) |
2554 |
{ |
{ |
2555 |
inputMethodListener = AWTEventMulticaster.remove(inputMethodListener, l); |
inputMethodListener = AWTEventMulticaster.remove(inputMethodListener, l); |
2556 |
} |
} |
2557 |
|
|
2558 |
/** Returns all registered EventListers of the given listenerType. |
/** |
2559 |
* listenerType must be a subclass of EventListener, or a |
* Returns an array of all specified listeners registered on this component. |
2560 |
* ClassClassException is thrown. |
* |
2561 |
* @since 1.3 |
* @return an array of listeners |
2562 |
*/ |
* @see #addInputMethodListener(InputMethodListener) |
2563 |
|
* @see #removeInputMethodListener(InputMethodListener) |
2564 |
|
* @since 1.4 |
2565 |
|
*/ |
2566 |
|
public synchronized InputMethodListener[] getInputMethodListeners() |
2567 |
|
{ |
2568 |
|
return (InputMethodListener[]) |
2569 |
|
AWTEventMulticaster.getListeners(inputMethodListener, |
2570 |
|
InputMethodListener.class); |
2571 |
|
} |
2572 |
|
|
2573 |
|
/** |
2574 |
|
* Returns all registered EventListers of the given listenerType. |
2575 |
|
* |
2576 |
|
* @param listenerType the class of listeners to filter |
2577 |
|
* @return an array of registered listeners |
2578 |
|
* @see #getComponentListeners() |
2579 |
|
* @see #getFocusListeners() |
2580 |
|
* @see #getHierarchyListeners() |
2581 |
|
* @see #getHierarchyBoundsListeners() |
2582 |
|
* @see #getKeyListeners() |
2583 |
|
* @see #getMouseListeners() |
2584 |
|
* @see #getMouseMotionListeners() |
2585 |
|
* @see #getMouseWheelListeners() |
2586 |
|
* @see #getInputMethodListeners() |
2587 |
|
* @see #getPropertyChangeListeners() |
2588 |
|
* @since 1.3 |
2589 |
|
*/ |
2590 |
public EventListener[] getListeners(Class listenerType) |
public EventListener[] getListeners(Class listenerType) |
2591 |
{ |
{ |
2592 |
if (listenerType == ComponentListener.class) |
if (listenerType == ComponentListener.class) |
2593 |
return getListenersImpl(listenerType, componentListener); |
return getComponentListeners(); |
2594 |
else if (listenerType == FocusListener.class) |
if (listenerType == FocusListener.class) |
2595 |
return getListenersImpl(listenerType, focusListener); |
return getFocusListeners(); |
2596 |
else if (listenerType == KeyListener.class) |
if (listenerType == HierarchyListener.class) |
2597 |
return getListenersImpl(listenerType, keyListener); |
return getHierarchyListeners(); |
2598 |
else if (listenerType == MouseListener.class) |
if (listenerType == HierarchyBoundsListener.class) |
2599 |
return getListenersImpl(listenerType, mouseListener); |
return getHierarchyBoundsListeners(); |
2600 |
else if (listenerType == MouseMotionListener.class) |
if (listenerType == KeyListener.class) |
2601 |
return getListenersImpl(listenerType, mouseMotionListener); |
return getKeyListeners(); |
2602 |
else if (listenerType == InputMethodListener.class) |
if (listenerType == MouseListener.class) |
2603 |
return getListenersImpl(listenerType, inputMethodListener); |
return getMouseListeners(); |
2604 |
else if (listenerType == HierarchyListener.class) |
if (listenerType == MouseMotionListener.class) |
2605 |
return getListenersImpl(listenerType, hierarchyListener); |
return getMouseMotionListeners(); |
2606 |
else if (listenerType == HierarchyBoundsListener.class) |
if (listenerType == MouseWheelListener.class) |
2607 |
return getListenersImpl(listenerType, hierarchyBoundsListener); |
return getMouseWheelListeners(); |
2608 |
else |
if (listenerType == InputMethodListener.class) |
2609 |
return getListenersImpl(listenerType, null); |
return getInputMethodListeners(); |
2610 |
|
if (listenerType == PropertyChangeListener.class) |
2611 |
|
return getPropertyChangeListeners(); |
2612 |
|
return (EventListener[]) Array.newInstance(listenerType, 0); |
2613 |
} |
} |
2614 |
|
|
2615 |
static EventListener[] getListenersImpl(Class listenerType, EventListener el) |
/** |
2616 |
|
* Returns the input method request handler, for subclasses which support |
2617 |
|
* on-the-spot text input. By default, input methods are handled by AWT, |
2618 |
|
* and this returns null. |
2619 |
|
* |
2620 |
|
* @return the input method handler, null by default |
2621 |
|
* @since 1.2 |
2622 |
|
*/ |
2623 |
|
public InputMethodRequests getInputMethodRequests() |
2624 |
{ |
{ |
2625 |
if (! EventListener.class.isAssignableFrom(listenerType)) |
return null; |
|
throw new ClassCastException(); |
|
|
|
|
|
Vector v = new Vector(); |
|
|
if (el != null) |
|
|
getListenerList (el, v); |
|
|
EventListener[] el_a = (EventListener[]) Array.newInstance(listenerType, |
|
|
v.size()); |
|
|
v.copyInto(el_a); |
|
|
return el_a; |
|
|
} |
|
|
|
|
|
static void getListenerList(EventListener el, Vector v) |
|
|
{ |
|
|
if (el instanceof AWTEventMulticaster) |
|
|
{ |
|
|
AWTEventMulticaster mc = (AWTEventMulticaster) el; |
|
|
getListenerList(mc.a, v); |
|
|
getListenerList(mc.b, v); |
|
|
} |
|
|
else |
|
|
v.addElement(el); |
|
2626 |
} |
} |
2627 |
|
|
2628 |
// The input method framework is currently unimplemented. |
/** |
2629 |
// /** @since 1.2 */ |
* Gets the input context of this component, which is inherited from the |
2630 |
// |
* parent unless this is overridden. |
2631 |
//public InputMethodRequests getInputMethodRequests() |
* |
2632 |
// |
* @return the text input context |
2633 |
// /** @since 1.2 */ |
* @since 1.2 |
2634 |
// |
*/ |
2635 |
// public InputContext getInputContext() |
public InputContext getInputContext() |
2636 |
|
{ |
2637 |
|
return parent == null ? null : parent.getInputContext(); |
2638 |
|
} |
2639 |
|
|
2640 |
/** |
/** |
2641 |
* Enables the specified events. The events to enable are specified |
* Enables the specified events. The events to enable are specified |
2642 |
* by OR-ing together the desired masks from <code>AWTEvent</code>. |
* by OR-ing together the desired masks from <code>AWTEvent</code>. |
2643 |
* <p> |
* |
2644 |
* Events are enabled by default when a listener is attached to the |
* <p>Events are enabled by default when a listener is attached to the |
2645 |
* component for that event type. This method can be used by subclasses |
* component for that event type. This method can be used by subclasses |
2646 |
* to ensure the delivery of a specified event regardless of whether |
* to ensure the delivery of a specified event regardless of whether |
2647 |
* or not a listener is attached. |
* or not a listener is attached. |
2648 |
* |
* |
2649 |
* @param enable_events The desired events to enable. |
* @param eventsToEnable the desired events to enable |
2650 |
|
* @see #processEvent(AWTEvent) |
2651 |
|
* @see #disableEvents(long) |
2652 |
|
* @see AWTEvent |
2653 |
|
* @since 1.1 |
2654 |
*/ |
*/ |
2655 |
protected final void enableEvents(long eventsToEnable) |
protected final void enableEvents(long eventsToEnable) |
2656 |
{ |
{ |
2657 |
eventMask |= eventsToEnable; |
eventMask |= eventsToEnable; |
2658 |
// TODO: Unlike Sun's implementation, I think we should try and |
// TODO: Unlike Sun's implementation, I think we should try and |
2659 |
// enable/disable events at the peer (gtk/X) level. This will avoid |
// enable/disable events at the peer (gtk/X) level. This will avoid |
2660 |
// clogging the event pipeline with useless mousemove events that |
// clogging the event pipeline with useless mousemove events that |
2661 |
// we arn't interested in, etc. This will involve extending the peer |
// we arn't interested in, etc. This will involve extending the peer |
2662 |
// interface, but thats okay because the peer interfaces have been |
// interface, but thats okay because the peer interfaces have been |
2663 |
// deprecated for a long time, and no longer feature in the |
// deprecated for a long time, and no longer feature in the |
2664 |
// API specification at all. |
// API specification at all. |
2665 |
|
if (isLightweight() && parent != null) |
|
if (isLightweight() && (parent != null)) |
|
2666 |
parent.enableEvents(eventsToEnable); |
parent.enableEvents(eventsToEnable); |
2667 |
else if (peer != null) |
else if (peer != null) |
2668 |
peer.setEventMask (eventMask); |
peer.setEventMask(eventMask); |
2669 |
} |
} |
2670 |
|
|
2671 |
/** |
/** |
2672 |
* Disables the specified events. The events to disable are specified |
* Disables the specified events. The events to disable are specified |
2673 |
* by OR-ing together the desired masks from <code>AWTEvent</code>. |
* by OR-ing together the desired masks from <code>AWTEvent</code>. |
2674 |
* |
* |
2675 |
* @param disable_events The desired events to disable. |
* @param eventsToDisable the desired events to disable |
2676 |
|
* @see #enableEvents(long) |
2677 |
|
* @since 1.1 |
2678 |
*/ |
*/ |
2679 |
protected final void disableEvents(long eventsToDisable) |
protected final void disableEvents(long eventsToDisable) |
2680 |
{ |
{ |
2682 |
// forward new event mask to peer? |
// forward new event mask to peer? |
2683 |
} |
} |
2684 |
|
|
2685 |
/** coalesceEvents is called by the EventQueue if two events with the same |
/** |
2686 |
* event id are queued. Returns a new combined event, or null if no |
* This is called by the EventQueue if two events with the same event id |
2687 |
* combining is done. |
* and owner component are queued. Returns a new combined event, or null if |
2688 |
*/ |
* no combining is done. The coelesced events are currently mouse moves |
2689 |
|
* (intermediate ones are discarded) and paint events (a merged paint is |
2690 |
|
* created in place of the two events). |
2691 |
|
* |
2692 |
|
* @param existingEvent the event on the queue |
2693 |
|
* @param newEvent the new event that might be entered on the queue |
2694 |
|
* @return null if both events are kept, or the replacement coelesced event |
2695 |
|
*/ |
2696 |
protected AWTEvent coalesceEvents(AWTEvent existingEvent, AWTEvent newEvent) |
protected AWTEvent coalesceEvents(AWTEvent existingEvent, AWTEvent newEvent) |
2697 |
{ |
{ |
2698 |
switch (existingEvent.id) |
switch (existingEvent.id) |
2705 |
case PaintEvent.UPDATE: |
case PaintEvent.UPDATE: |
2706 |
return coalescePaintEvents((PaintEvent) existingEvent, |
return coalescePaintEvents((PaintEvent) existingEvent, |
2707 |
(PaintEvent) newEvent); |
(PaintEvent) newEvent); |
2708 |
|
default: |
2709 |
|
return null; |
2710 |
} |
} |
|
return null; |
|
|
} |
|
|
|
|
|
/** |
|
|
* Coalesce paint events. Current heuristic is: Merge if the union of |
|
|
* areas is less than twice that of the sum of the areas. The X server |
|
|
* tend to create a lot of paint events that are adjacent but not |
|
|
* overlapping. |
|
|
* |
|
|
* <pre> |
|
|
* +------+ |
|
|
* | +-----+ ...will be merged |
|
|
* | | | |
|
|
* | | | |
|
|
* +------+ | |
|
|
* +-----+ |
|
|
* |
|
|
* +---------------+--+ |
|
|
* | | | ...will not be merged |
|
|
* +---------------+ | |
|
|
* | | |
|
|
* | | |
|
|
* | | |
|
|
* | | |
|
|
* | | |
|
|
* +--+ |
|
|
* </pre> |
|
|
*/ |
|
|
private PaintEvent coalescePaintEvents(PaintEvent queuedEvent, |
|
|
PaintEvent newEvent) |
|
|
{ |
|
|
Rectangle r1 = queuedEvent.getUpdateRect(); |
|
|
Rectangle r2 = newEvent.getUpdateRect(); |
|
|
Rectangle union = r1.union(r2); |
|
|
|
|
|
int r1a = r1.width * r1.height; |
|
|
int r2a = r2.width * r2.height; |
|
|
int ua = union.width * union.height; |
|
|
|
|
|
if (ua > (r1a+r2a)*2) |
|
|
return null; |
|
|
/* The 2 factor should maybe be reconsidered. Perhaps 3/2 |
|
|
would be better? */ |
|
|
|
|
|
newEvent.setUpdateRect(union); |
|
|
return newEvent; |
|
2711 |
} |
} |
2712 |
|
|
2713 |
/** |
/** |
2714 |
* Processes the specified event. In this class, this method simply |
* Processes the specified event. In this class, this method simply |
2715 |
* calls one of the more specific event handlers. |
* calls one of the more specific event handlers. |
2716 |
* |
* |
2717 |
* @param event The event to process. |
* @param event the event to process |
2718 |
|
* @throws NullPointerException if e is null |
2719 |
|
* @see #processComponentEvent(ComponentEvent) |
2720 |
|
* @see #processFocusEvent(FocusEvent) |
2721 |
|
* @see #processKeyEvent(KeyEvent) |
2722 |
|
* @see #processMouseEvent(MouseEvent) |
2723 |
|
* @see #processMouseMotionEvent(MouseEvent) |
2724 |
|
* @see #processInputMethodEvent(InputMethodEvent) |
2725 |
|
* @see #processHierarchyEvent(HierarchyEvent) |
2726 |
|
* @see #processMouseWheelEvent(MouseWheelEvent) |
2727 |
|
* @since 1.1 |
2728 |
*/ |
*/ |
2729 |
protected void processEvent(AWTEvent e) |
protected void processEvent(AWTEvent e) |
2730 |
{ |
{ |
|
|
|
2731 |
/* Note: the order of these if statements are |
/* Note: the order of these if statements are |
2732 |
important. Subclasses must be checked first. Eg. MouseEvent |
important. Subclasses must be checked first. Eg. MouseEvent |
2733 |
must be checked before ComponentEvent, since a MouseEvent |
must be checked before ComponentEvent, since a MouseEvent |
2737 |
processFocusEvent((FocusEvent) e); |
processFocusEvent((FocusEvent) e); |
2738 |
else if (e instanceof PaintEvent) |
else if (e instanceof PaintEvent) |
2739 |
processPaintEvent((PaintEvent) e); |
processPaintEvent((PaintEvent) e); |
2740 |
|
else if (e instanceof MouseWheelEvent) |
2741 |
|
processMouseWheelEvent((MouseWheelEvent) e); |
2742 |
else if (e instanceof MouseEvent) |
else if (e instanceof MouseEvent) |
2743 |
{ |
{ |
2744 |
if (e.id == MouseEvent.MOUSE_MOVED |
if (e.id == MouseEvent.MOUSE_MOVED |
2745 |
|| e.id == MouseEvent.MOUSE_DRAGGED) |
|| e.id == MouseEvent.MOUSE_DRAGGED) |
2746 |
processMouseMotionEvent((MouseEvent) e); |
processMouseMotionEvent((MouseEvent) e); |
2747 |
else |
else |
2764 |
|
|
2765 |
/** |
/** |
2766 |
* Called when a component event is dispatched and component events are |
* Called when a component event is dispatched and component events are |
2767 |
* enabled. This method passes the event along to any listeners |
* enabled. This method passes the event along to any listeners |
2768 |
* that are attached. |
* that are attached. |
2769 |
* |
* |
2770 |
* @param event The <code>ComponentEvent</code> to process. |
* @param event the <code>ComponentEvent</code> to process |
2771 |
|
* @throws NullPointerException if e is null |
2772 |
|
* @see ComponentListener |
2773 |
|
* @see #addComponentListener(ComponentListener) |
2774 |
|
* @see #enableEvents(long) |
2775 |
|
* @since 1.1 |
2776 |
*/ |
*/ |
2777 |
protected void processComponentEvent(ComponentEvent e) |
protected void processComponentEvent(ComponentEvent e) |
2778 |
{ |
{ |
2780 |
return; |
return; |
2781 |
switch (e.id) |
switch (e.id) |
2782 |
{ |
{ |
2783 |
case ComponentEvent.COMPONENT_HIDDEN: |
case ComponentEvent.COMPONENT_HIDDEN: |
2784 |
componentListener.componentHidden(e); |
componentListener.componentHidden(e); |
2785 |
|
break; |
2786 |
|
case ComponentEvent.COMPONENT_MOVED: |
2787 |
|
componentListener.componentMoved(e); |
2788 |
break; |
break; |
2789 |
|
case ComponentEvent.COMPONENT_RESIZED: |
2790 |
case ComponentEvent.COMPONENT_MOVED: |
componentListener.componentResized(e); |
2791 |
componentListener.componentMoved(e); |
break; |
2792 |
break; |
case ComponentEvent.COMPONENT_SHOWN: |
2793 |
|
componentListener.componentShown(e); |
|
case ComponentEvent.COMPONENT_RESIZED: |
|
|
componentListener.componentResized(e); |
|
|
break; |
|
|
|
|
|
case ComponentEvent.COMPONENT_SHOWN: |
|
|
componentListener.componentShown(e); |
|
2794 |
break; |
break; |
2795 |
} |
} |
2796 |
} |
} |
2797 |
|
|
2798 |
/** |
/** |
2799 |
* Called when a focus event is dispatched and component events are |
* Called when a focus event is dispatched and component events are |
2800 |
* enabled. This method passes the event along to any listeners |
* enabled. This method passes the event along to any listeners |
2801 |
* that are attached. |
* that are attached. |
2802 |
* |
* |
2803 |
* @param event The <code>FocusEvent</code> to process. |
* @param event the <code>FocusEvent</code> to process |
2804 |
|
* @throws NullPointerException if e is null |
2805 |
|
* @see FocusListener |
2806 |
|
* @see #addFocusListener(FocusListener) |
2807 |
|
* @see #enableEvents(long) |
2808 |
|
* @since 1.1 |
2809 |
*/ |
*/ |
2810 |
protected void processFocusEvent(FocusEvent e) |
protected void processFocusEvent(FocusEvent e) |
2811 |
{ |
{ |
2819 |
case FocusEvent.FOCUS_LOST: |
case FocusEvent.FOCUS_LOST: |
2820 |
focusListener.focusLost(e); |
focusListener.focusLost(e); |
2821 |
break; |
break; |
2822 |
} |
} |
2823 |
} |
} |
2824 |
|
|
2825 |
/** |
/** |
2826 |
* Called when a key event is dispatched and component events are |
* Called when a key event is dispatched and component events are |
2827 |
* enabled. This method passes the event along to any listeners |
* enabled. This method passes the event along to any listeners |
2828 |
* that are attached. |
* that are attached. |
2829 |
* |
* |
2830 |
* @param event The <code>KeyEvent</code> to process. |
* @param event the <code>KeyEvent</code> to process |
2831 |
|
* @throws NullPointerException if e is null |
2832 |
|
* @see KeyListener |
2833 |
|
* @see #addKeyListener(KeyListener) |
2834 |
|
* @see #enableEvents(long) |
2835 |
|
* @since 1.1 |
2836 |
*/ |
*/ |
2837 |
protected void processKeyEvent(KeyEvent e) |
protected void processKeyEvent(KeyEvent e) |
2838 |
{ |
{ |
2854 |
|
|
2855 |
/** |
/** |
2856 |
* Called when a regular mouse event is dispatched and component events are |
* Called when a regular mouse event is dispatched and component events are |
2857 |
* enabled. This method passes the event along to any listeners |
* enabled. This method passes the event along to any listeners |
2858 |
* that are attached. |
* that are attached. |
2859 |
* |
* |
2860 |
* @param event The <code>MouseEvent</code> to process. |
* @param event the <code>MouseEvent</code> to process |
2861 |
|
* @throws NullPointerException if e is null |
2862 |
|
* @see MouseListener |
2863 |
|
* @see #addMouseListener(MouseListener) |
2864 |
|
* @see #enableEvents(long) |
2865 |
|
* @since 1.1 |
2866 |
*/ |
*/ |
2867 |
protected void processMouseEvent(MouseEvent e) |
protected void processMouseEvent(MouseEvent e) |
2868 |
{ |
{ |
2890 |
|
|
2891 |
/** |
/** |
2892 |
* Called when a mouse motion event is dispatched and component events are |
* Called when a mouse motion event is dispatched and component events are |
2893 |
* enabled. This method passes the event along to any listeners |
* enabled. This method passes the event along to any listeners |
2894 |
* that are attached. |
* that are attached. |
2895 |
* |
* |
2896 |
* @param event The <code>MouseMotionEvent</code> to process. |
* @param event the <code>MouseMotionEvent</code> to process |
2897 |
|
* @throws NullPointerException if e is null |
2898 |
|
* @see MouseMotionListener |
2899 |
|
* @see #addMouseMotionListener(MouseMotionListener) |
2900 |
|
* @see #enableEvents(long) |
2901 |
|
* @since 1.1 |
2902 |
*/ |
*/ |
2903 |
protected void processMouseMotionEvent(MouseEvent e) |
protected void processMouseMotionEvent(MouseEvent e) |
2904 |
{ |
{ |
2912 |
case MouseEvent.MOUSE_MOVED: |
case MouseEvent.MOUSE_MOVED: |
2913 |
mouseMotionListener.mouseMoved(e); |
mouseMotionListener.mouseMoved(e); |
2914 |
break; |
break; |
2915 |
} |
} |
2916 |
} |
} |
2917 |
|
|
2918 |
/** @since 1.2 */ |
/** |
2919 |
|
* Called when a mouse wheel event is dispatched and component events are |
2920 |
|
* enabled. This method passes the event along to any listeners that are |
2921 |
|
* attached. |
2922 |
|
* |
2923 |
|
* @param event the <code>MouseWheelEvent</code> to process |
2924 |
|
* @throws NullPointerException if e is null |
2925 |
|
* @see MouseWheelListener |
2926 |
|
* @see #addMouseWheelListener(MouseWheelListener) |
2927 |
|
* @see #enableEvents(long) |
2928 |
|
* @since 1.4 |
2929 |
|
*/ |
2930 |
|
protected void processMouseWheelEvent(MouseWheelEvent e) |
2931 |
|
{ |
2932 |
|
if (mouseWheelListener != null |
2933 |
|
&& e.id == MouseEvent.MOUSE_WHEEL) |
2934 |
|
mouseWheelListener.mouseWheelMoved(e); |
2935 |
|
} |
2936 |
|
|
2937 |
|
/** |
2938 |
|
* Called when an input method event is dispatched and component events are |
2939 |
|
* enabled. This method passes the event along to any listeners that are |
2940 |
|
* attached. |
2941 |
|
* |
2942 |
|
* @param event the <code>InputMethodEvent</code> to process |
2943 |
|
* @throws NullPointerException if e is null |
2944 |
|
* @see InputMethodListener |
2945 |
|
* @see #addInputMethodListener(InputMethodListener) |
2946 |
|
* @see #enableEvents(long) |
2947 |
|
* @since 1.2 |
2948 |
|
*/ |
2949 |
protected void processInputMethodEvent(InputMethodEvent e) |
protected void processInputMethodEvent(InputMethodEvent e) |
2950 |
{ |
{ |
2951 |
if (inputMethodListener == null) |
if (inputMethodListener == null) |
2958 |
case InputMethodEvent.INPUT_METHOD_TEXT_CHANGED: |
case InputMethodEvent.INPUT_METHOD_TEXT_CHANGED: |
2959 |
inputMethodListener.inputMethodTextChanged(e); |
inputMethodListener.inputMethodTextChanged(e); |
2960 |
break; |
break; |
2961 |
} |
} |
2962 |
} |
} |
2963 |
|
|
2964 |
/** @since 1.3 */ |
/** |
2965 |
|
* Called when a hierarchy change event is dispatched and component events |
2966 |
|
* are enabled. This method passes the event along to any listeners that are |
2967 |
|
* attached. |
2968 |
|
* |
2969 |
|
* @param event the <code>HierarchyEvent</code> to process |
2970 |
|
* @throws NullPointerException if e is null |
2971 |
|
* @see HierarchyListener |
2972 |
|
* @see #addHierarchyListener(HierarchyListener) |
2973 |
|
* @see #enableEvents(long) |
2974 |
|
* @since 1.3 |
2975 |
|
*/ |
2976 |
protected void processHierarchyEvent(HierarchyEvent e) |
protected void processHierarchyEvent(HierarchyEvent e) |
2977 |
{ |
{ |
2978 |
if (hierarchyListener == null) |
if (hierarchyListener == null) |
2980 |
if (e.id == HierarchyEvent.HIERARCHY_CHANGED) |
if (e.id == HierarchyEvent.HIERARCHY_CHANGED) |
2981 |
hierarchyListener.hierarchyChanged(e); |
hierarchyListener.hierarchyChanged(e); |
2982 |
} |
} |
2983 |
|
|
2984 |
/** @since 1.3 */ |
/** |
2985 |
|
* Called when a hierarchy bounds event is dispatched and component events |
2986 |
|
* are enabled. This method passes the event along to any listeners that are |
2987 |
|
* attached. |
2988 |
|
* |
2989 |
|
* @param event the <code>HierarchyEvent</code> to process |
2990 |
|
* @throws NullPointerException if e is null |
2991 |
|
* @see HierarchyBoundsListener |
2992 |
|
* @see #addHierarchyBoundsListener(HierarchyBoundsListener) |
2993 |
|
* @see #enableEvents(long) |
2994 |
|
* @since 1.3 |
2995 |
|
*/ |
2996 |
protected void processHierarchyBoundsEvent(HierarchyEvent e) |
protected void processHierarchyBoundsEvent(HierarchyEvent e) |
2997 |
{ |
{ |
2998 |
if (hierarchyBoundsListener == null) |
if (hierarchyBoundsListener == null) |
3008 |
} |
} |
3009 |
} |
} |
3010 |
|
|
|
private void processPaintEvent(PaintEvent event) |
|
|
{ |
|
|
// Can't do graphics without peer |
|
|
if (peer == null) |
|
|
return; |
|
|
|
|
|
Graphics gfx = getGraphics(); |
|
|
Shape clip = event.getUpdateRect(); |
|
|
gfx.setClip(clip); |
|
|
|
|
|
switch (event.id) |
|
|
{ |
|
|
case PaintEvent.PAINT: |
|
|
paint(gfx); |
|
|
break; |
|
|
case PaintEvent.UPDATE: |
|
|
update(gfx); |
|
|
break; |
|
|
default: |
|
|
throw new IllegalArgumentException("unknown paint event"); |
|
|
} |
|
|
} |
|
|
|
|
3011 |
/** |
/** |
3012 |
* AWT 1.0 event processor. |
* AWT 1.0 event processor. |
3013 |
* |
* |
3014 |
* @deprecated Deprecated in favor of <code>processEvent</code>. |
* @param evt the event to handle |
3015 |
|
* @return false: since the method was deprecated, the return has no meaning |
3016 |
|
* @deprecated use {@link #processEvent(AWTEvent)} instead |
3017 |
*/ |
*/ |
3018 |
public boolean handleEvent(Event evt) |
public boolean handleEvent(Event evt) |
3019 |
{ |
{ |
3020 |
|
// XXX Add backward compatibility handling. |
3021 |
return false; |
return false; |
3022 |
} |
} |
3023 |
|
|
3024 |
/** |
/** |
3025 |
* AWT 1.0 mouse event. |
* AWT 1.0 mouse event. |
3026 |
* |
* |
3027 |
* @deprecated Deprecated in favor of <code>processMouseEvent()</code>. |
* @param evt the event to handle |
3028 |
|
* @param x the x coordinate, ignored |
3029 |
|
* @param y the y coordinate, ignored |
3030 |
|
* @return false: since the method was deprecated, the return has no meaning |
3031 |
|
* @deprecated use {@link #processMouseEvent(MouseEvent)} instead |
3032 |
*/ |
*/ |
3033 |
public boolean mouseDown(Event evt, int x, int y) |
public boolean mouseDown(Event evt, int x, int y) |
3034 |
{ |
{ |
3035 |
|
// XXX Add backward compatibility handling. |
3036 |
return false; |
return false; |
3037 |
} |
} |
3038 |
|
|
3039 |
/** |
/** |
3040 |
* AWT 1.0 mouse event. |
* AWT 1.0 mouse event. |
3041 |
* |
* |
3042 |
* @deprecated Deprecated in favor of <code>processMouseMotionEvent()</code>. |
* @param evt the event to handle |
3043 |
|
* @param x the x coordinate, ignored |
3044 |
|
* @param y the y coordinate, ignored |
3045 |
|
* @return false: since the method was deprecated, the return has no meaning |
3046 |
|
* @deprecated use {@link #processMouseMotionEvent(MouseEvent)} instead |
3047 |
*/ |
*/ |
3048 |
public boolean mouseDrag(Event evt, int x, int y) |
public boolean mouseDrag(Event evt, int x, int y) |
3049 |
{ |
{ |
3050 |
|
// XXX Add backward compatibility handling. |
3051 |
return false; |
return false; |
3052 |
} |
} |
3053 |
|
|
3054 |
/** |
/** |
3055 |
* AWT 1.0 mouse event. |
* AWT 1.0 mouse event. |
3056 |
* |
* |
3057 |
* @deprecated Deprecated in favor of <code>processMouseEvent()</code>. |
* @param evt the event to handle |
3058 |
|
* @param x the x coordinate, ignored |
3059 |
|
* @param y the y coordinate, ignored |
3060 |
|
* @return false: since the method was deprecated, the return has no meaning |
3061 |
|
* @deprecated use {@link #processMouseEvent(MouseEvent)} instead |
3062 |
*/ |
*/ |
3063 |
public boolean mouseUp(Event evt, int x, int y) |
public boolean mouseUp(Event evt, int x, int y) |
3064 |
{ |
{ |
3065 |
|
// XXX Add backward compatibility handling. |
3066 |
return false; |
return false; |
3067 |
} |
} |
3068 |
|
|
3069 |
/** |
/** |
3070 |
* AWT 1.0 mouse event. |
* AWT 1.0 mouse event. |
3071 |
* |
* |
3072 |
* @deprecated Deprecated in favor of <code>processMouseMotionEvent()</code>. |
* @param evt the event to handle |
3073 |
|
* @param x the x coordinate, ignored |
3074 |
|
* @param y the y coordinate, ignored |
3075 |
|
* @return false: since the method was deprecated, the return has no meaning |
3076 |
|
* @deprecated use {@link #processMouseMotionEvent(MouseEvent)} instead |
3077 |
*/ |
*/ |
3078 |
public boolean mouseMove(Event evt, int x, int y) |
public boolean mouseMove(Event evt, int x, int y) |
3079 |
{ |
{ |
3080 |
|
// XXX Add backward compatibility handling. |
3081 |
return false; |
return false; |
3082 |
} |
} |
3083 |
|
|
3084 |
/** |
/** |
3085 |
* AWT 1.0 mouse event. |
* AWT 1.0 mouse event. |
3086 |
* |
* |
3087 |
* @deprecated Deprecated in favor of <code>processMouseEvent()</code>. |
* @param evt the event to handle |
3088 |
|
* @param x the x coordinate, ignored |
3089 |
|
* @param y the y coordinate, ignored |
3090 |
|
* @return false: since the method was deprecated, the return has no meaning |
3091 |
|
* @deprecated use {@link #processMouseEvent(MouseEvent)} instead |
3092 |
*/ |
*/ |
3093 |
public boolean mouseEnter(Event evt, int x, int y) |
public boolean mouseEnter(Event evt, int x, int y) |
3094 |
{ |
{ |
3095 |
|
// XXX Add backward compatibility handling. |
3096 |
return false; |
return false; |
3097 |
} |
} |
3098 |
|
|
3099 |
/** |
/** |
3100 |
* AWT 1.0 mouse event. |
* AWT 1.0 mouse event. |
3101 |
* |
* |
3102 |
* @deprecated Deprecated in favor of <code>processMouseEvent()</code>. |
* @param evt the event to handle |
3103 |
|
* @param x the x coordinate, ignored |
3104 |
|
* @param y the y coordinate, ignored |
3105 |
|
* @return false: since the method was deprecated, the return has no meaning |
3106 |
|
* @deprecated use {@link #processMouseEvent(MouseEvent)} instead |
3107 |
*/ |
*/ |
3108 |
public boolean mouseExit(Event evt, int x, int y) |
public boolean mouseExit(Event evt, int x, int y) |
3109 |
{ |
{ |
3110 |
|
// XXX Add backward compatibility handling. |
3111 |
return false; |
return false; |
3112 |
} |
} |
3113 |
|
|
3114 |
/** |
/** |
3115 |
* AWT 1.0 key press event. |
* AWT 1.0 key press event. |
3116 |
* |
* |
3117 |
* @deprecated Deprecated in favor of <code>processKeyEvent</code>. |
* @param evt the event to handle |
3118 |
|
* @param key the key pressed, ignored |
3119 |
|
* @return false: since the method was deprecated, the return has no meaning |
3120 |
|
* @deprecated use {@link #processKeyEvent(KeyEvent)} instead |
3121 |
*/ |
*/ |
3122 |
public boolean keyDown(Event evt, int key) |
public boolean keyDown(Event evt, int key) |
3123 |
{ |
{ |
3124 |
|
// XXX Add backward compatibility handling. |
3125 |
return false; |
return false; |
3126 |
} |
} |
3127 |
|
|
3128 |
/** |
/** |
3129 |
* AWT 1.0 key press event. |
* AWT 1.0 key press event. |
3130 |
* |
* |
3131 |
* @deprecated Deprecated in favor of <code>processKeyEvent</code>. |
* @param evt the event to handle |
3132 |
|
* @param key the key pressed, ignored |
3133 |
|
* @return false: since the method was deprecated, the return has no meaning |
3134 |
|
* @deprecated use {@link #processKeyEvent(KeyEvent)} instead |
3135 |
*/ |
*/ |
3136 |
public boolean keyUp(Event evt, int key) |
public boolean keyUp(Event evt, int key) |
3137 |
{ |
{ |
3138 |
|
// XXX Add backward compatibility handling. |
3139 |
return false; |
return false; |
3140 |
} |
} |
3141 |
|
|
3142 |
/** |
/** |
3143 |
* AWT 1.0 action event processor. |
* AWT 1.0 action event processor. |
3144 |
* |
* |
3145 |
* @deprecated Deprecated in favor of the <code>ActionListener</code> |
* @param evt the event to handle |
3146 |
* interface. |
* @param what the object acted on, ignored |
3147 |
|
* @return false: since the method was deprecated, the return has no meaning |
3148 |
|
* @deprecated in classes which support actions, use |
3149 |
|
* <code>processActionEvent(ActionEvent)</code> instead |
3150 |
*/ |
*/ |
3151 |
public boolean action(Event evt, Object what) |
public boolean action(Event evt, Object what) |
3152 |
{ |
{ |
3153 |
|
// XXX Add backward compatibility handling. |
3154 |
return false; |
return false; |
3155 |
} |
} |
3156 |
|
|
3157 |
/** |
/** |
3158 |
* Called to inform this component it has been added to a container. |
* Called to inform this component it has been added to a container. |
3159 |
* A native peer - if any - is created at this time. This method is |
* A native peer - if any - is created at this time. This method is |
3160 |
* called automatically by the AWT system and should not be called by |
* called automatically by the AWT system and should not be called by |
3161 |
* user level code. |
* user level code. |
3162 |
|
* |
3163 |
|
* @see #isDisplayable() |
3164 |
|
* @see #removeNotify() |
3165 |
*/ |
*/ |
3166 |
public void addNotify() |
public void addNotify() |
3167 |
{ |
{ |
3168 |
if (peer == null) |
if (peer == null) |
3169 |
peer = getToolkit().createComponent(this); |
peer = getToolkit().createComponent(this); |
|
|
|
3170 |
/* Now that all the children has gotten their peers, we should |
/* Now that all the children has gotten their peers, we should |
3171 |
have the event mask needed for this component and its |
have the event mask needed for this component and its |
3172 |
lightweight subcomponents. */ |
lightweight subcomponents. */ |
|
|
|
3173 |
peer.setEventMask(eventMask); |
peer.setEventMask(eventMask); |
|
|
|
3174 |
/* We do not invalidate here, but rather leave that job up to |
/* We do not invalidate here, but rather leave that job up to |
3175 |
the peer. For efficiency, the peer can choose not to |
the peer. For efficiency, the peer can choose not to |
3176 |
invalidate if it is happy with the current dimensions, |
invalidate if it is happy with the current dimensions, |
3179 |
|
|
3180 |
/** |
/** |
3181 |
* Called to inform this component is has been removed from its |
* Called to inform this component is has been removed from its |
3182 |
* container. Its native peer - if any - is destroyed at this time. |
* container. Its native peer - if any - is destroyed at this time. |
3183 |
* This method is called automatically by the AWT system and should |
* This method is called automatically by the AWT system and should |
3184 |
* not be called by user level code. |
* not be called by user level code. |
3185 |
|
* |
3186 |
|
* @see #isDisplayable() |
3187 |
|
* @see #addNotify() |
3188 |
*/ |
*/ |
3189 |
public void removeNotify() |
public void removeNotify() |
3190 |
{ |
{ |
3191 |
if (peer != null) |
if (peer != null) |
3192 |
peer.dispose(); |
peer.dispose(); |
3193 |
peer = null; |
peer = null; |
3194 |
} |
} |
3195 |
|
|
3196 |
/** @deprecated */ |
/** |
3197 |
|
* AWT 1.0 focus event. |
3198 |
|
* |
3199 |
|
* @param evt the event to handle |
3200 |
|
* @param what the Object focused, ignored |
3201 |
|
* @return false: since the method was deprecated, the return has no meaning |
3202 |
|
* @deprecated use {@link #processFocusEvent(FocusEvent)} instead |
3203 |
|
*/ |
3204 |
public boolean gotFocus(Event evt, Object what) |
public boolean gotFocus(Event evt, Object what) |
3205 |
{ |
{ |
3206 |
|
// XXX Add backward compatibility handling. |
3207 |
return false; |
return false; |
3208 |
} |
} |
3209 |
|
|
3210 |
/** @deprecated */ |
/** |
3211 |
|
* AWT 1.0 focus event. |
3212 |
|
* |
3213 |
|
* @param evt the event to handle |
3214 |
|
* @param what the Object focused, ignored |
3215 |
|
* @return false: since the method was deprecated, the return has no meaning |
3216 |
|
* @deprecated use {@link #processFocusEvent(FocusEvent)} instead |
3217 |
|
*/ |
3218 |
public boolean lostFocus(Event evt, Object what) |
public boolean lostFocus(Event evt, Object what) |
3219 |
{ |
{ |
3220 |
|
// XXX Add backward compatibility handling. |
3221 |
return false; |
return false; |
3222 |
} |
} |
3223 |
|
|
3224 |
/** |
/** |
3225 |
* Tests whether or not this component is in the group that can |
* Tests whether or not this component is in the group that can be |
3226 |
* be traversed using the keyboard traversal mechanism (such as the TAB |
* traversed using the keyboard traversal mechanism (such as the TAB key). |
|
* key). |
|
3227 |
* |
* |
3228 |
* @return <code>true</code> if the component is traversed via the TAB |
* @return true if the component is traversed via the TAB key |
3229 |
* key, <code>false</code> otherwise. |
* @see #setFocusable(boolean) |
3230 |
|
* @since 1.1 |
3231 |
|
* @deprecated use {@link #isFocusable()} instead |
3232 |
*/ |
*/ |
3233 |
public boolean isFocusTraversable() |
public boolean isFocusTraversable() |
3234 |
{ |
{ |
3235 |
return enabled && visible && (peer == null || peer.isFocusTraversable ()); |
return enabled && visible && (peer == null || peer.isFocusTraversable()); |
3236 |
|
} |
3237 |
|
|
3238 |
|
/** |
3239 |
|
* Tests if this component can receive focus. |
3240 |
|
* |
3241 |
|
* @return true if this component can receive focus |
3242 |
|
* @since 1.4 |
3243 |
|
*/ |
3244 |
|
public boolean isFocusable() |
3245 |
|
{ |
3246 |
|
return focusable; |
3247 |
|
} |
3248 |
|
|
3249 |
|
/** |
3250 |
|
* Specify whether this component can receive focus. |
3251 |
|
* |
3252 |
|
* @param focusable the new focusable status |
3253 |
|
* @since 1.4 |
3254 |
|
*/ |
3255 |
|
public void setFocusable(boolean focusable) |
3256 |
|
{ |
3257 |
|
firePropertyChange("focusable", this.focusable, focusable); |
3258 |
|
this.focusable = focusable; |
3259 |
|
} |
3260 |
|
|
3261 |
|
/** |
3262 |
|
* Sets the focus traversal keys for a given type of focus events. Normally, |
3263 |
|
* the default values should match the operating system's native choices. To |
3264 |
|
* disable a given traversal, use <code>Collections.EMPTY_SET</code>. The |
3265 |
|
* event dispatcher will consume PRESSED, RELEASED, and TYPED events for the |
3266 |
|
* specified key, although focus can only transfer on PRESSED or RELEASED. |
3267 |
|
* |
3268 |
|
* <p>The defauts are: |
3269 |
|
* <table> |
3270 |
|
* <th><td>Identifier</td><td>Meaning</td><td>Default</td></th> |
3271 |
|
* <tr><td>KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS</td> |
3272 |
|
* <td>Normal forward traversal</td> |
3273 |
|
* <td>TAB on KEY_PRESSED, Ctrl-TAB on KEY_PRESSED</td></tr> |
3274 |
|
* <tr><td>KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS</td> |
3275 |
|
* <td>Normal backward traversal</td> |
3276 |
|
* <td>Shift-TAB on KEY_PRESSED, Ctrl-Shift-TAB on KEY_PRESSED</td></tr> |
3277 |
|
* <tr><td>KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS</td> |
3278 |
|
* <td>Go up a traversal cycle</td><td>None</td></tr> |
3279 |
|
* </table> |
3280 |
|
* |
3281 |
|
* <p>Specifying null allows inheritance from the parent, or from the current |
3282 |
|
* KeyboardFocusManager default set. If not null, the set must contain only |
3283 |
|
* AWTKeyStrokes that are not already focus keys and are not KEY_TYPED |
3284 |
|
* events. |
3285 |
|
* |
3286 |
|
* @param id one of FORWARD_TRAVERSAL_KEYS, BACKWARD_TRAVERSAL_KEYS, or |
3287 |
|
* UP_CYCLE_TRAVERSAL_KEYS |
3288 |
|
* @param keystrokes a set of keys, or null |
3289 |
|
* @throws IllegalArgumentException if id or keystrokes is invalid |
3290 |
|
* @see #getFocusTraversalKeys(int) |
3291 |
|
* @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS |
3292 |
|
* @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS |
3293 |
|
* @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS |
3294 |
|
* @since 1.4 |
3295 |
|
*/ |
3296 |
|
public void setFocusTraversalKeys(int id, Set keystrokes) |
3297 |
|
{ |
3298 |
|
if (keystrokes == null) |
3299 |
|
throw new IllegalArgumentException(); |
3300 |
|
Set sa; |
3301 |
|
Set sb; |
3302 |
|
String name; |
3303 |
|
switch (id) |
3304 |
|
{ |
3305 |
|
case KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS: |
3306 |
|
sa = getFocusTraversalKeys |
3307 |
|
(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS); |
3308 |
|
sb = getFocusTraversalKeys |
3309 |
|
(KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS); |
3310 |
|
name = "forwardFocusTraversalKeys"; |
3311 |
|
break; |
3312 |
|
case KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS: |
3313 |
|
sa = getFocusTraversalKeys |
3314 |
|
(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS); |
3315 |
|
sb = getFocusTraversalKeys |
3316 |
|
(KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS); |
3317 |
|
name = "backwardFocusTraversalKeys"; |
3318 |
|
break; |
3319 |
|
case KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS: |
3320 |
|
sa = getFocusTraversalKeys |
3321 |
|
(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS); |
3322 |
|
sb = getFocusTraversalKeys |
3323 |
|
(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS); |
3324 |
|
name = "upCycleFocusTraversalKeys"; |
3325 |
|
break; |
3326 |
|
default: |
3327 |
|
throw new IllegalArgumentException(); |
3328 |
|
} |
3329 |
|
int i = keystrokes.size(); |
3330 |
|
Iterator iter = keystrokes.iterator(); |
3331 |
|
while (--i >= 0) |
3332 |
|
{ |
3333 |
|
Object o = iter.next(); |
3334 |
|
if (! (o instanceof AWTKeyStroke) |
3335 |
|
|| sa.contains(o) || sb.contains(o) |
3336 |
|
|| ((AWTKeyStroke) o).keyCode == KeyEvent.VK_UNDEFINED) |
3337 |
|
throw new IllegalArgumentException(); |
3338 |
|
} |
3339 |
|
if (focusTraversalKeys == null) |
3340 |
|
focusTraversalKeys = new Set[3]; |
3341 |
|
keystrokes = Collections.unmodifiableSet(new HashSet(keystrokes)); |
3342 |
|
firePropertyChange(name, focusTraversalKeys[id], keystrokes); |
3343 |
|
focusTraversalKeys[id] = keystrokes; |
3344 |
|
} |
3345 |
|
|
3346 |
|
/** |
3347 |
|
* Returns the set of keys for a given focus traversal action, as defined |
3348 |
|
* in <code>setFocusTraversalKeys</code>. If not set, this is inherited from |
3349 |
|
* the parent component, which may have gotten it from the |
3350 |
|
* KeyboardFocusManager. |
3351 |
|
* |
3352 |
|
* @param id one of FORWARD_TRAVERSAL_KEYS, BACKWARD_TRAVERSAL_KEYS, or |
3353 |
|
* UP_CYCLE_TRAVERSAL_KEYS |
3354 |
|
* @throws IllegalArgumentException if id is invalid |
3355 |
|
* @see #setFocusTraversalKeys(int, Set) |
3356 |
|
* @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS |
3357 |
|
* @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS |
3358 |
|
* @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS |
3359 |
|
* @since 1.4 |
3360 |
|
*/ |
3361 |
|
public Set getFocusTraversalKeys(int id) |
3362 |
|
{ |
3363 |
|
if (id < KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS |
3364 |
|
|| id > KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS) |
3365 |
|
throw new IllegalArgumentException(); |
3366 |
|
Set s = null; |
3367 |
|
if (focusTraversalKeys != null) |
3368 |
|
s = focusTraversalKeys[id]; |
3369 |
|
if (s == null && parent != null) |
3370 |
|
s = parent.getFocusTraversalKeys(id); |
3371 |
|
return s == null ? (KeyboardFocusManager.getCurrentKeyboardFocusManager() |
3372 |
|
.getDefaultFocusTraversalKeys(id)) : s; |
3373 |
|
} |
3374 |
|
|
3375 |
|
/** |
3376 |
|
* Tests whether the focus traversal keys for a given action are explicitly |
3377 |
|
* set or inherited. |
3378 |
|
* |
3379 |
|
* @param id one of FORWARD_TRAVERSAL_KEYS, BACKWARD_TRAVERSAL_KEYS, or |
3380 |
|
* UP_CYCLE_TRAVERSAL_KEYS |
3381 |
|
* @return true if that set is explicitly specified |
3382 |
|
* @throws IllegalArgumentException if id is invalid |
3383 |
|
* @see #getFocusTraversalKeys(int) |
3384 |
|
* @see KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS |
3385 |
|
* @see KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS |
3386 |
|
* @see KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS |
3387 |
|
* @since 1.4 |
3388 |
|
*/ |
3389 |
|
public boolean areFocusTraversalKeysSet(int id) |
3390 |
|
{ |
3391 |
|
if (id < KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS |
3392 |
|
|| id > KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS) |
3393 |
|
throw new IllegalArgumentException(); |
3394 |
|
return focusTraversalKeys != null && focusTraversalKeys[id] != null; |
3395 |
|
} |
3396 |
|
|
3397 |
|
/** |
3398 |
|
* Sets whether focus traversal keys are enabled, which consumes traversal |
3399 |
|
* keys and performs the focus event automatically. |
3400 |
|
* |
3401 |
|
* @param focusTraversalKeysEnabled the new value of the flag |
3402 |
|
* @see #getFocusTraversalKeysEnabled() |
3403 |
|
* @see #setFocusTraversalKeys(int, Set) |
3404 |
|
* @see #getFocusTraversalKeys(int) |
3405 |
|
* @since 1.4 |
3406 |
|
*/ |
3407 |
|
public void setFocusTraversalKeysEnabled(boolean focusTraversalKeysEnabled) |
3408 |
|
{ |
3409 |
|
firePropertyChange("focusTraversalKeysEnabled", |
3410 |
|
this.focusTraversalKeysEnabled, |
3411 |
|
focusTraversalKeysEnabled); |
3412 |
|
this.focusTraversalKeysEnabled = focusTraversalKeysEnabled; |
3413 |
} |
} |
3414 |
|
|
3415 |
/** |
/** |
3416 |
* Requests that this component be given focus. The <code>gotFocus()</code> |
* Tests whether focus traversal keys are enabled. If they are, then focus |
3417 |
|
* traversal keys are consumed and focus events performed automatically, |
3418 |
|
* without the component seeing the keystrokes. |
3419 |
|
* |
3420 |
|
* @return true if focus traversal is enabled |
3421 |
|
* @see #setFocusTraversalKeysEnabled(boolean) |
3422 |
|
* @see #setFocusTraversalKeys(int, Set) |
3423 |
|
* @see #getFocusTraversalKeys(int) |
3424 |
|
* @since 1.4 |
3425 |
|
*/ |
3426 |
|
public boolean getFocusTraversalKeysEnabled() |
3427 |
|
{ |
3428 |
|
return focusTraversalKeysEnabled; |
3429 |
|
} |
3430 |
|
|
3431 |
|
/** |
3432 |
|
* Requests that this component be given focus. The <code>gotFocus()</code> |
3433 |
* method on this event will be called when and if this request was |
* method on this event will be called when and if this request was |
3434 |
* successful. |
* successful. To be successful, the component must be displayable, visible, |
3435 |
|
* and focusable, and the top-level Window must be able to receive focus. |
3436 |
|
* Thus, this request may fail, or be delayed until the window receives |
3437 |
|
* focus. It is recommended that <code>requestFocusInWindow</code> be used |
3438 |
|
* where possible to be more platform-independent. |
3439 |
|
* |
3440 |
|
* @see #requestFocusInWindow() |
3441 |
|
* @see FocusEvent |
3442 |
|
* @see #addFocusListener(FocusListener) |
3443 |
|
* @see #isFocusable() |
3444 |
|
* @see #isDisplayable() |
3445 |
|
* @see KeyboardFocusManager#clearGlobalFocusOwner() |
3446 |
*/ |
*/ |
3447 |
public void requestFocus() |
public void requestFocus() |
3448 |
{ |
{ |
3449 |
// If there's no peer then this component can't get the focus. We |
// If there's no peer then this component can't get the focus. We |
3450 |
// treat it as a silent rejection of the request. |
// treat it as a silent rejection of the request. |
3451 |
if (peer != null) |
if (peer != null) |
3452 |
peer.requestFocus (); |
peer.requestFocus(); |
3453 |
} |
} |
3454 |
|
|
3455 |
// This method is used to implement transferFocus(). |
//XXX Below here, I have not yet had time to document things --EBB |
3456 |
// CHILD is the child making the request. |
/** |
3457 |
// This is overridden by Container; when called for an ordinary |
* @since 1.4 |
3458 |
// component there is no child and so we always return null. |
*/ |
3459 |
Component findNextFocusComponent (Component child) |
protected boolean requestFocus(boolean temporary) |
3460 |
{ |
{ |
3461 |
return null; |
// XXX Implement correctly. |
3462 |
|
requestFocus(); |
3463 |
|
return true; |
3464 |
|
} |
3465 |
|
|
3466 |
|
/** |
3467 |
|
* @since 1.4 |
3468 |
|
*/ |
3469 |
|
public boolean requestFocusInWindow() |
3470 |
|
{ |
3471 |
|
// XXX Implement correctly. |
3472 |
|
requestFocus(); |
3473 |
|
return true; |
3474 |
|
} |
3475 |
|
|
3476 |
|
/** |
3477 |
|
* @since 1.4 |
3478 |
|
*/ |
3479 |
|
protected boolean requestFocusInWindow(boolean temporary) |
3480 |
|
{ |
3481 |
|
// XXX Implement correctly. |
3482 |
|
requestFocus(); |
3483 |
|
return true; |
3484 |
} |
} |
3485 |
|
|
3486 |
/** |
/** |
3490 |
{ |
{ |
3491 |
Component next; |
Component next; |
3492 |
if (parent == null) |
if (parent == null) |
3493 |
next = findNextFocusComponent (null); |
next = findNextFocusComponent(null); |
3494 |
else |
else |
3495 |
next = parent.findNextFocusComponent (this); |
next = parent.findNextFocusComponent(this); |
3496 |
if (next != null && next != this) |
if (next != null && next != this) |
3497 |
next.requestFocus (); |
next.requestFocus(); |
3498 |
|
} |
3499 |
|
|
3500 |
|
/** |
3501 |
|
* @since 1.4 |
3502 |
|
*/ |
3503 |
|
public Container getFocusCycleRootAncestor() |
3504 |
|
{ |
3505 |
|
// XXX Implement. |
3506 |
|
throw new Error("not implemented"); |
3507 |
|
} |
3508 |
|
|
3509 |
|
/** |
3510 |
|
* @since 1.4 |
3511 |
|
*/ |
3512 |
|
public boolean isFocusCycleRoot() |
3513 |
|
{ |
3514 |
|
// XXX Implement. |
3515 |
|
throw new Error("not implemented"); |
3516 |
} |
} |
3517 |
|
|
3518 |
/** |
/** |
3525 |
transferFocus(); |
transferFocus(); |
3526 |
} |
} |
3527 |
|
|
3528 |
|
/** |
3529 |
|
* @since 1.4 |
3530 |
|
*/ |
3531 |
|
public void transferFocusBackward() |
3532 |
|
{ |
3533 |
|
// XXX Implement. |
3534 |
|
throw new Error("not implemented"); |
3535 |
|
} |
3536 |
|
|
3537 |
|
/** |
3538 |
|
* @since 1.4 |
3539 |
|
*/ |
3540 |
|
public void transferFocusUpCycle() |
3541 |
|
{ |
3542 |
|
// XXX Implement. |
3543 |
|
throw new Error("not implemented"); |
3544 |
|
} |
3545 |
|
|
3546 |
/** @since 1.2 */ |
/** @since 1.2 */ |
3547 |
public boolean hasFocus() |
public boolean hasFocus() |
3548 |
{ |
{ |
3549 |
return hasFocus; |
return isFocusOwner(); |
3550 |
|
} |
3551 |
|
|
3552 |
|
/** |
3553 |
|
* @since 1.4 |
3554 |
|
*/ |
3555 |
|
public boolean isFocusOwner() |
3556 |
|
{ |
3557 |
|
// XXX Implement. |
3558 |
|
throw new Error("not implemented"); |
3559 |
} |
} |
3560 |
|
|
3561 |
/** |
/** |
3567 |
{ |
{ |
3568 |
if (popups == null) |
if (popups == null) |
3569 |
popups = new Vector(); |
popups = new Vector(); |
3570 |
popups.addElement(popup); |
popups.add(popup); |
3571 |
} |
} |
3572 |
|
|
3573 |
/** |
/** |
3577 |
*/ |
*/ |
3578 |
public synchronized void remove(MenuComponent popup) |
public synchronized void remove(MenuComponent popup) |
3579 |
{ |
{ |
3580 |
popups.removeElement(popup); |
if (popups != null) |
3581 |
|
popups.remove(popup); |
3582 |
} |
} |
3583 |
|
|
3584 |
/** |
/** |
3595 |
param.append(name); |
param.append(name); |
3596 |
param.append(","); |
param.append(","); |
3597 |
} |
} |
3598 |
param.append(width); |
param.append(width).append("x").append(height).append("+").append(x) |
3599 |
param.append("x"); |
.append("+").append(y); |
3600 |
param.append(height); |
if (! isValid()) |
|
param.append("+"); |
|
|
param.append(x); |
|
|
param.append("+"); |
|
|
param.append(y); |
|
|
|
|
|
if (!isValid()) |
|
3601 |
param.append(",invalid"); |
param.append(",invalid"); |
3602 |
if (!isVisible()) |
if (! isVisible()) |
3603 |
param.append(",invisible"); |
param.append(",invisible"); |
3604 |
if (!isEnabled()) |
if (! isEnabled()) |
3605 |
param.append(",disabled"); |
param.append(",disabled"); |
3606 |
if (!isOpaque()) |
if (! isOpaque()) |
3607 |
param.append(",translucent"); |
param.append(",translucent"); |
3608 |
if (isDoubleBuffered()) |
if (isDoubleBuffered()) |
3609 |
param.append(",doublebuffered"); |
param.append(",doublebuffered"); |
|
|
|
3610 |
return param.toString(); |
return param.toString(); |
3611 |
} |
} |
3612 |
|
|
3617 |
*/ |
*/ |
3618 |
public String toString() |
public String toString() |
3619 |
{ |
{ |
3620 |
return this.getClass().getName() + "[" + paramString() + "]"; |
return getClass().getName() + "[" + paramString() + "]"; |
3621 |
} |
} |
3622 |
|
|
3623 |
/** |
/** |
3624 |
* Prints a listing of this component to the standard output. |
* Prints a listing of this component to the standard output. |
3625 |
*/ |
*/ |
3626 |
public void list () |
public void list() |
3627 |
{ |
{ |
3628 |
list (System.out, 0); |
list(System.out, 0); |
3629 |
} |
} |
3630 |
|
|
3631 |
/** |
/** |
3633 |
* |
* |
3634 |
* @param stream The <code>PrintStream</code> to print to. |
* @param stream The <code>PrintStream</code> to print to. |
3635 |
*/ |
*/ |
3636 |
public void list (PrintStream out) |
public void list(PrintStream out) |
3637 |
{ |
{ |
3638 |
list (out, 0); |
list(out, 0); |
3639 |
} |
} |
3640 |
|
|
3641 |
/** |
/** |
3645 |
* @param stream The <code>PrintStream</code> to print to. |
* @param stream The <code>PrintStream</code> to print to. |
3646 |
* @param indent The indentation point. |
* @param indent The indentation point. |
3647 |
*/ |
*/ |
3648 |
public void list (PrintStream out, int indent) |
public void list(PrintStream out, int indent) |
3649 |
{ |
{ |
3650 |
for (int i = 0; i < indent; ++i) |
for (int i = 0; i < indent; ++i) |
3651 |
out.print (' '); |
out.print(' '); |
3652 |
out.println (toString ()); |
out.println(toString()); |
3653 |
} |
} |
3654 |
|
|
3655 |
/** |
/** |
3657 |
* |
* |
3658 |
* @param writer The <code>PrintWrinter</code> to print to. |
* @param writer The <code>PrintWrinter</code> to print to. |
3659 |
*/ |
*/ |
3660 |
public void list (PrintWriter out) |
public void list(PrintWriter out) |
3661 |
{ |
{ |
3662 |
list (out, 0); |
list(out, 0); |
3663 |
} |
} |
3664 |
|
|
3665 |
/** |
/** |
3669 |
* @param writer The <code>PrintWriter</code> to print to. |
* @param writer The <code>PrintWriter</code> to print to. |
3670 |
* @param indent The indentation point. |
* @param indent The indentation point. |
3671 |
*/ |
*/ |
3672 |
public void list (PrintWriter out, int indent) |
public void list(PrintWriter out, int indent) |
3673 |
{ |
{ |
3674 |
for (int i = 0; i < indent; ++i) |
for (int i = 0; i < indent; ++i) |
3675 |
out.print (' '); |
out.print(' '); |
3676 |
out.println (toString ()); |
out.println(toString()); |
3677 |
} |
} |
3678 |
|
|
3679 |
public void addPropertyChangeListener(PropertyChangeListener listener) |
public void addPropertyChangeListener(PropertyChangeListener listener) |
3686 |
public void removePropertyChangeListener(PropertyChangeListener listener) |
public void removePropertyChangeListener(PropertyChangeListener listener) |
3687 |
{ |
{ |
3688 |
if (changeSupport != null) |
if (changeSupport != null) |
3689 |
changeSupport.removePropertyChangeListener(listener); |
changeSupport.removePropertyChangeListener(listener); |
3690 |
|
} |
3691 |
|
|
3692 |
|
/** |
3693 |
|
* @since 1.4 |
3694 |
|
*/ |
3695 |
|
public PropertyChangeListener[] getPropertyChangeListeners() |
3696 |
|
{ |
3697 |
|
return changeSupport == null ? new PropertyChangeListener[0] |
3698 |
|
: changeSupport.getPropertyChangeListeners(); |
3699 |
} |
} |
3700 |
|
|
3701 |
public void addPropertyChangeListener(String propertyName, |
public void addPropertyChangeListener(String propertyName, |
3703 |
{ |
{ |
3704 |
if (changeSupport == null) |
if (changeSupport == null) |
3705 |
changeSupport = new PropertyChangeSupport(this); |
changeSupport = new PropertyChangeSupport(this); |
3706 |
changeSupport.addPropertyChangeListener(propertyName, listener); |
changeSupport.addPropertyChangeListener(propertyName, listener); |
3707 |
} |
} |
3708 |
|
|
3709 |
public void removePropertyChangeListener(String propertyName, |
public void removePropertyChangeListener(String propertyName, |
3713 |
changeSupport.removePropertyChangeListener(propertyName, listener); |
changeSupport.removePropertyChangeListener(propertyName, listener); |
3714 |
} |
} |
3715 |
|
|
3716 |
protected void firePropertyChange(String propertyName, Object oldValue, |
/** |
3717 |
|
* @since 1.4 |
3718 |
|
*/ |
3719 |
|
public PropertyChangeListener[] getPropertyChangeListeners(String property) |
3720 |
|
{ |
3721 |
|
return changeSupport == null ? new PropertyChangeListener[0] |
3722 |
|
: changeSupport.getPropertyChangeListeners(property); |
3723 |
|
} |
3724 |
|
|
3725 |
|
protected void firePropertyChange(String propertyName, Object oldValue, |
3726 |
Object newValue) |
Object newValue) |
3727 |
{ |
{ |
3728 |
if (changeSupport != null) |
if (changeSupport != null) |
3729 |
changeSupport.firePropertyChange(propertyName, oldValue, newValue); |
changeSupport.firePropertyChange(propertyName, oldValue, newValue); |
3730 |
|
} |
3731 |
|
|
3732 |
|
protected void firePropertyChange(String propertyName, boolean oldValue, |
3733 |
|
boolean newValue) |
3734 |
|
{ |
3735 |
|
if (changeSupport != null) |
3736 |
|
changeSupport.firePropertyChange(propertyName, oldValue, newValue); |
3737 |
|
} |
3738 |
|
|
3739 |
|
protected void firePropertyChange(String propertyName, int oldValue, |
3740 |
|
int newValue) |
3741 |
|
{ |
3742 |
|
if (changeSupport != null) |
3743 |
|
changeSupport.firePropertyChange(propertyName, oldValue, newValue); |
3744 |
} |
} |
3745 |
|
|
3746 |
public void setComponentOrientation(ComponentOrientation o) |
public void setComponentOrientation(ComponentOrientation o) |
3753 |
return orientation; |
return orientation; |
3754 |
} |
} |
3755 |
|
|
3756 |
/* |
public void applyComponentOrientation(ComponentOrientation o) |
3757 |
|
{ |
3758 |
|
setComponentOrientation(o); |
3759 |
|
} |
3760 |
|
|
3761 |
public AccessibleContext getAccessibleContext() |
public AccessibleContext getAccessibleContext() |
3762 |
{ |
{ |
3763 |
return accessibleContext; |
return null; |
3764 |
} |
} |
|
*/ |
|
3765 |
|
|
3766 |
/** |
|
3767 |
* AWT 1.0 focus event processor. |
// Helper methods; some are package visible for use by subclasses. |
|
* |
|
|
* @deprecated Deprecated in favor of <code>processFocusEvent</code>. |
|
|
|
|
|
public boolean |
|
|
gotFocus(Event event, Object what) |
|
|
{ |
|
|
return(true); |
|
|
} |
|
|
*/ |
|
3768 |
|
|
3769 |
/** |
/** |
3770 |
* AWT 1.0 focus event processor. |
* Subclasses should override this to return unique component names like |
3771 |
* |
* "menuitem0". |
3772 |
* @deprecated Deprecated in favor of <code>processFocusEvent</code>. |
* |
3773 |
|
* @return the generated name for this component |
3774 |
public boolean |
*/ |
3775 |
lostFocus(Event event, Object what) |
String generateName() |
3776 |
{ |
{ |
3777 |
return(true); |
// Component is abstract. |
3778 |
} |
return null; |
3779 |
*/ |
} |
3780 |
|
|
3781 |
|
// Sets the peer for this component. |
3782 |
|
final void setPeer(ComponentPeer peer) |
3783 |
|
{ |
3784 |
|
this.peer = peer; |
3785 |
|
} |
3786 |
|
|
3787 |
|
/** Implementation method that allows classes such as Canvas and |
3788 |
|
Window to override the graphics configuration without violating |
3789 |
|
the published API. */ |
3790 |
|
GraphicsConfiguration getGraphicsConfigurationImpl() |
3791 |
|
{ |
3792 |
|
if (peer != null) |
3793 |
|
{ |
3794 |
|
GraphicsConfiguration config = peer.getGraphicsConfiguration(); |
3795 |
|
if (config != null) |
3796 |
|
return config; |
3797 |
|
} |
3798 |
|
|
3799 |
|
if (parent != null) |
3800 |
|
return parent.getGraphicsConfiguration(); |
3801 |
|
|
3802 |
|
return null; |
3803 |
|
} |
3804 |
|
|
3805 |
|
void dispatchEventImpl(AWTEvent e) |
3806 |
|
{ |
3807 |
|
// Make use of event id's in order to avoid multiple instanceof tests. |
3808 |
|
if (e.id <= ComponentEvent.COMPONENT_LAST |
3809 |
|
&& e.id >= ComponentEvent.COMPONENT_FIRST |
3810 |
|
&& (componentListener != null |
3811 |
|
|| (eventMask & AWTEvent.COMPONENT_EVENT_MASK) != 0)) |
3812 |
|
processEvent(e); |
3813 |
|
else if (e.id <= KeyEvent.KEY_LAST |
3814 |
|
&& e.id >= KeyEvent.KEY_FIRST |
3815 |
|
&& (keyListener != null |
3816 |
|
|| (eventMask & AWTEvent.KEY_EVENT_MASK) != 0)) |
3817 |
|
processEvent(e); |
3818 |
|
else if (e.id <= MouseEvent.MOUSE_LAST |
3819 |
|
&& e.id >= MouseEvent.MOUSE_FIRST |
3820 |
|
&& (mouseListener != null |
3821 |
|
|| mouseMotionListener != null |
3822 |
|
|| (eventMask & AWTEvent.MOUSE_EVENT_MASK) != 0)) |
3823 |
|
processEvent(e); |
3824 |
|
else if (e.id <= FocusEvent.FOCUS_LAST |
3825 |
|
&& e.id >= FocusEvent.FOCUS_FIRST |
3826 |
|
&& (focusListener != null |
3827 |
|
|| (eventMask & AWTEvent.FOCUS_EVENT_MASK) != 0)) |
3828 |
|
processEvent(e); |
3829 |
|
else if (e.id <= InputMethodEvent.INPUT_METHOD_LAST |
3830 |
|
&& e.id >= InputMethodEvent.INPUT_METHOD_FIRST |
3831 |
|
&& (inputMethodListener != null |
3832 |
|
|| (eventMask & AWTEvent.INPUT_METHOD_EVENT_MASK) != 0)) |
3833 |
|
processEvent(e); |
3834 |
|
else if (e.id <= HierarchyEvent.HIERARCHY_LAST |
3835 |
|
&& e.id >= HierarchyEvent.HIERARCHY_FIRST |
3836 |
|
&& (hierarchyListener != null |
3837 |
|
|| hierarchyBoundsListener != null |
3838 |
|
|| (eventMask & AWTEvent.HIERARCHY_EVENT_MASK) != 0)) |
3839 |
|
processEvent(e); |
3840 |
|
else if (e.id <= PaintEvent.PAINT_LAST |
3841 |
|
&& e.id >= PaintEvent.PAINT_FIRST |
3842 |
|
&& (eventMask & AWTEvent.PAINT_EVENT_MASK) != 0) |
3843 |
|
processEvent(e); |
3844 |
|
} |
3845 |
|
|
3846 |
|
/** |
3847 |
|
* Coalesce paint events. Current heuristic is: Merge if the union of |
3848 |
|
* areas is less than twice that of the sum of the areas. The X server |
3849 |
|
* tend to create a lot of paint events that are adjacent but not |
3850 |
|
* overlapping. |
3851 |
|
* |
3852 |
|
* <pre> |
3853 |
|
* +------+ |
3854 |
|
* | +-----+ ...will be merged |
3855 |
|
* | | | |
3856 |
|
* | | | |
3857 |
|
* +------+ | |
3858 |
|
* +-----+ |
3859 |
|
* |
3860 |
|
* +---------------+--+ |
3861 |
|
* | | | ...will not be merged |
3862 |
|
* +---------------+ | |
3863 |
|
* | | |
3864 |
|
* | | |
3865 |
|
* | | |
3866 |
|
* | | |
3867 |
|
* | | |
3868 |
|
* +--+ |
3869 |
|
* </pre> |
3870 |
|
*/ |
3871 |
|
private PaintEvent coalescePaintEvents(PaintEvent queuedEvent, |
3872 |
|
PaintEvent newEvent) |
3873 |
|
{ |
3874 |
|
Rectangle r1 = queuedEvent.getUpdateRect(); |
3875 |
|
Rectangle r2 = newEvent.getUpdateRect(); |
3876 |
|
Rectangle union = r1.union(r2); |
3877 |
|
|
3878 |
|
int r1a = r1.width * r1.height; |
3879 |
|
int r2a = r2.width * r2.height; |
3880 |
|
int ua = union.width * union.height; |
3881 |
|
|
3882 |
|
if (ua > (r1a+r2a)*2) |
3883 |
|
return null; |
3884 |
|
/* The 2 factor should maybe be reconsidered. Perhaps 3/2 |
3885 |
|
would be better? */ |
3886 |
|
|
3887 |
|
newEvent.setUpdateRect(union); |
3888 |
|
return newEvent; |
3889 |
|
} |
3890 |
|
|
3891 |
|
private void processPaintEvent(PaintEvent event) |
3892 |
|
{ |
3893 |
|
// Can't do graphics without peer |
3894 |
|
if (peer == null) |
3895 |
|
return; |
3896 |
|
|
3897 |
|
Graphics gfx = getGraphics(); |
3898 |
|
Shape clip = event.getUpdateRect(); |
3899 |
|
gfx.setClip(clip); |
3900 |
|
|
3901 |
|
switch (event.id) |
3902 |
|
{ |
3903 |
|
case PaintEvent.PAINT: |
3904 |
|
paint(gfx); |
3905 |
|
break; |
3906 |
|
case PaintEvent.UPDATE: |
3907 |
|
update(gfx); |
3908 |
|
break; |
3909 |
|
default: |
3910 |
|
throw new IllegalArgumentException("unknown paint event"); |
3911 |
|
} |
3912 |
|
} |
3913 |
|
|
3914 |
|
// This method is used to implement transferFocus(). |
3915 |
|
// CHILD is the child making the request. |
3916 |
|
// This is overridden by Container; when called for an ordinary |
3917 |
|
// component there is no child and so we always return null. |
3918 |
|
Component findNextFocusComponent(Component child) |
3919 |
|
{ |
3920 |
|
return null; |
3921 |
|
} |
3922 |
|
|
3923 |
|
private void readObject(ObjectInputStream s) |
3924 |
|
throws ClassNotFoundException, IOException |
3925 |
|
{ |
3926 |
|
s.defaultReadObject(); |
3927 |
|
String key = (String) s.readObject(); |
3928 |
|
while (key != null) |
3929 |
|
{ |
3930 |
|
Object listener = s.readObject(); |
3931 |
|
if ("componentL".equals(key)) |
3932 |
|
addComponentListener((ComponentListener) listener); |
3933 |
|
else if ("focusL".equals(key)) |
3934 |
|
addFocusListener((FocusListener) listener); |
3935 |
|
else if ("keyL".equals(key)) |
3936 |
|
addKeyListener((KeyListener) listener); |
3937 |
|
else if ("mouseL".equals(key)) |
3938 |
|
addMouseListener((MouseListener) listener); |
3939 |
|
else if ("mouseMotionL".equals(key)) |
3940 |
|
addMouseMotionListener((MouseMotionListener) listener); |
3941 |
|
else if ("inputMethodL".equals(key)) |
3942 |
|
addInputMethodListener((InputMethodListener) listener); |
3943 |
|
else if ("hierarchyL".equals(key)) |
3944 |
|
addHierarchyListener((HierarchyListener) listener); |
3945 |
|
else if ("hierarchyBoundsL".equals(key)) |
3946 |
|
addHierarchyBoundsListener((HierarchyBoundsListener) listener); |
3947 |
|
else if ("mouseWheelL".equals(key)) |
3948 |
|
addMouseWheelListener((MouseWheelListener) listener); |
3949 |
|
key = (String) s.readObject(); |
3950 |
|
} |
3951 |
|
} |
3952 |
|
|
3953 |
|
private void writeObject(ObjectOutputStream s) throws IOException |
3954 |
|
{ |
3955 |
|
s.defaultWriteObject(); |
3956 |
|
AWTEventMulticaster.save(s, "componentL", componentListener); |
3957 |
|
AWTEventMulticaster.save(s, "focusL", focusListener); |
3958 |
|
AWTEventMulticaster.save(s, "keyL", keyListener); |
3959 |
|
AWTEventMulticaster.save(s, "mouseL", mouseListener); |
3960 |
|
AWTEventMulticaster.save(s, "mouseMotionL", mouseMotionListener); |
3961 |
|
AWTEventMulticaster.save(s, "inputMethodL", inputMethodListener); |
3962 |
|
AWTEventMulticaster.save(s, "hierarchyL", hierarchyListener); |
3963 |
|
AWTEventMulticaster.save(s, "hierarchyBoundsL", hierarchyBoundsListener); |
3964 |
|
AWTEventMulticaster.save(s, "mouseWheelL", mouseWheelListener); |
3965 |
|
s.writeObject(null); |
3966 |
|
} |
3967 |
|
|
3968 |
|
|
3969 |
|
// Nested classes. |
3970 |
|
|
3971 |
/** |
/** |
3972 |
* This class provides accessibility support for subclasses of container. |
* This class provides accessibility support for subclasses of container. |
3973 |
* |
* |
3974 |
* @author Eric Blake <ebb9@email.byu.edu> |
* @author Eric Blake <ebb9@email.byu.edu> |
3975 |
* @since 1.3 |
* @since 1.3 |
3976 |
* @XXX Shell class, to allow compilation. This needs documentation and |
* @status updated to 1.4 |
|
* correct implementation. |
|
3977 |
*/ |
*/ |
3978 |
protected abstract class AccessibleAWTComponent extends AccessibleContext |
protected abstract class AccessibleAWTComponent extends AccessibleContext |
3979 |
implements Serializable, AccessibleComponent |
implements Serializable, AccessibleComponent |
3984 |
private static final long serialVersionUID = 642321655757800191L; |
private static final long serialVersionUID = 642321655757800191L; |
3985 |
|
|
3986 |
/** |
/** |
3987 |
* Converts show/hide events to PropertyChange events. |
* Converts show/hide events to PropertyChange events, and is registered |
3988 |
|
* as a component listener on this component. |
3989 |
* |
* |
3990 |
* @serial the component handler |
* @serial the component handler |
3991 |
*/ |
*/ |
3992 |
protected ComponentListener accessibleAWTComponentHandler; |
protected ComponentListener accessibleAWTComponentHandler |
3993 |
|
= new AccessibleAWTComponentHandler(); |
3994 |
|
|
3995 |
/** |
/** |
3996 |
* Converts focus events to PropertyChange events. |
* Converts focus events to PropertyChange events, and is registered |
3997 |
|
* as a focus listener on this component. |
3998 |
* |
* |
3999 |
* @serial the focus handler |
* @serial the focus handler |
4000 |
*/ |
*/ |
4001 |
protected FocusListener accessibltAWTFocusHandler; |
protected FocusListener accessibleAWTFocusHandler |
4002 |
|
= new AccessibleAWTFocusHandler(); |
4003 |
|
|
4004 |
/** |
/** |
4005 |
* The default constructor. |
* The default constructor. |
4006 |
*/ |
*/ |
4007 |
protected AccessibleAWTComponent() |
protected AccessibleAWTComponent() |
4008 |
{ |
{ |
4009 |
|
Component.this.addComponentListener(accessibleAWTComponentHandler); |
4010 |
|
Component.this.addFocusListener(accessibleAWTFocusHandler); |
4011 |
|
} |
4012 |
|
|
4013 |
|
/** |
4014 |
|
* Adds a global property change listener to the accessible component. |
4015 |
|
* |
4016 |
|
* @param l the listener to add |
4017 |
|
* @see #ACCESSIBLE_NAME_PROPERTY |
4018 |
|
* @see #ACCESSIBLE_DESCRIPTION_PROPERTY |
4019 |
|
* @see #ACCESSIBLE_STATE_PROPERTY |
4020 |
|
* @see #ACCESSIBLE_VALUE_PROPERTY |
4021 |
|
* @see #ACCESSIBLE_SELECTION_PROPERTY |
4022 |
|
* @see #ACCESSIBLE_TEXT_PROPERTY |
4023 |
|
* @see #ACCESSIBLE_VISIBLE_DATA_PROPERTY |
4024 |
|
*/ |
4025 |
|
public void addPropertyChangeListener(PropertyChangeListener l) |
4026 |
|
{ |
4027 |
|
Component.this.addPropertyChangeListener(l); |
4028 |
|
super.addPropertyChangeListener(l); |
4029 |
|
} |
4030 |
|
|
4031 |
|
/** |
4032 |
|
* Removes a global property change listener from this accessible |
4033 |
|
* component. |
4034 |
|
* |
4035 |
|
* @param l the listener to remove |
4036 |
|
*/ |
4037 |
|
public void removePropertyChangeListener(PropertyChangeListener l) |
4038 |
|
{ |
4039 |
|
Component.this.removePropertyChangeListener(l); |
4040 |
|
super.removePropertyChangeListener(l); |
4041 |
|
} |
4042 |
|
|
4043 |
|
/** |
4044 |
|
* Returns the accessible name of this component. It is almost always |
4045 |
|
* wrong to return getName(), since it is not localized. In fact, for |
4046 |
|
* things like buttons, this should be the text of the button, not the |
4047 |
|
* name of the object. The tooltip text might also be appropriate. |
4048 |
|
* |
4049 |
|
* @return the name |
4050 |
|
* @see #setAccessibleName(String) |
4051 |
|
*/ |
4052 |
|
public String getAccessibleName() |
4053 |
|
{ |
4054 |
|
return accessibleName == null ? getName() : accessibleName; |
4055 |
|
} |
4056 |
|
|
4057 |
|
/** |
4058 |
|
* Returns a brief description of this accessible context. This should |
4059 |
|
* be localized. |
4060 |
|
* |
4061 |
|
* @return a description of this component |
4062 |
|
* @see #setAccessibleDescription(String) |
4063 |
|
*/ |
4064 |
|
public String getAccessibleDescription() |
4065 |
|
{ |
4066 |
|
return accessibleDescription; |
4067 |
} |
} |
4068 |
|
|
4069 |
public void addPropertyChangeListener(PropertyChangeListener l) {} |
/** |
4070 |
public void removePropertyChangeListener(PropertyChangeListener l){} |
* Returns the role of this component. |
4071 |
public String getAccessibleName() { return null; } |
* |
4072 |
public String getAccessibleDescription() { return null; } |
* @return the accessible role |
4073 |
|
*/ |
4074 |
public AccessibleRole getAccessibleRole() |
public AccessibleRole getAccessibleRole() |
4075 |
{ |
{ |
4076 |
return AccessibleRole.AWT_COMPONENT; |
return AccessibleRole.AWT_COMPONENT; |
4077 |
} |
} |
4078 |
public AccessibleStateSet getAccessibleStateSet() { return null; } |
|
4079 |
public Accessible getAccessibleParent() { return null; } |
/** |
4080 |
public int getAccessibleIndexInParent() { return -1; } |
* Returns a state set describing this component's state. |
4081 |
public int getAccessibleChildrenCount() { return 0; } |
* |
4082 |
public Accessible getAccessibleChild(int i) { return null; } |
* @return a new state set |
4083 |
public Locale getLocale() { return null; } |
* @see AccessibleState |
4084 |
public AccessibleComponent getAccessibleComponent() { return null; } |
*/ |
4085 |
public Color getBackground() { return null; } |
public AccessibleStateSet getAccessibleStateSet() |
4086 |
public void setBackground(Color c) {} |
{ |
4087 |
public Color getForeground() { return null; } |
AccessibleStateSet s = new AccessibleStateSet(); |
4088 |
public void setForeground(Color c) {} |
if (Component.this.isEnabled()) |
4089 |
public Cursor getCursor() { return null; } |
s.add(AccessibleState.ENABLED); |
4090 |
public void setCursor(Cursor cursor) {} |
if (isFocusable()) |
4091 |
public Font getFont() { return null; } |
s.add(AccessibleState.FOCUSABLE); |
4092 |
public void setFont(Font f) {} |
if (isFocusOwner()) |
4093 |
public FontMetrics getFontMetrics(Font f) { return null; } |
s.add(AccessibleState.FOCUSED); |
4094 |
public boolean isEnabled() { return false; } |
if (isOpaque()) |
4095 |
public void setEnabled(boolean b) {} |
s.add(AccessibleState.OPAQUE); |
4096 |
public boolean isVisible() { return false; } |
if (Component.this.isShowing()) |
4097 |
public void setVisible(boolean b) {} |
s.add(AccessibleState.SHOWING); |
4098 |
public boolean isShowing() { return false; } |
if (Component.this.isVisible()) |
4099 |
public boolean contains(Point p) { return false; } |
s.add(AccessibleState.VISIBLE); |
4100 |
public Point getLocationOnScreen() { return null; } |
return s; |
4101 |
public Point getLocation() { return null; } |
} |
4102 |
public void setLocation(Point p) {} |
|
4103 |
public Rectangle getBounds() { return null; } |
/** |
4104 |
public void setBounds(Rectangle r) {} |
* Returns the parent of this component, if it is accessible. |
4105 |
public Dimension getSize() { return null; } |
* |
4106 |
public void setSize(Dimension d) {} |
* @return the accessible parent |
4107 |
public Accessible getAccessibleAt(Point p) { return null; } |
*/ |
4108 |
public boolean isFocusTraversable() { return false; } |
public Accessible getAccessibleParent() |
4109 |
public void requestFocus() {} |
{ |
4110 |
public void addFocusListener(FocusListener l) {} |
if (accessibleParent == null) |
4111 |
public void removeFocusListener(FocusListener l) {} |
{ |
4112 |
|
Container parent = getParent(); |
4113 |
|
accessibleParent = parent instanceof Accessible |
4114 |
|
? (Accessible) parent : null; |
4115 |
|
} |
4116 |
|
return accessibleParent; |
4117 |
|
} |
4118 |
|
|
4119 |
|
/** |
4120 |
|
* Returns the index of this component in its accessible parent. |
4121 |
|
* |
4122 |
|
* @return the index, or -1 if the parent is not accessible |
4123 |
|
* @see #getAccessibleParent() |
4124 |
|
*/ |
4125 |
|
public int getAccessibleIndexInParent() |
4126 |
|
{ |
4127 |
|
if (getAccessibleParent() == null) |
4128 |
|
return -1; |
4129 |
|
AccessibleContext context |
4130 |
|
= ((Component) accessibleParent).getAccessibleContext(); |
4131 |
|
if (context == null) |
4132 |
|
return -1; |
4133 |
|
for (int i = context.getAccessibleChildrenCount(); --i >= 0; ) |
4134 |
|
if (context.getAccessibleChild(i) == Component.this) |
4135 |
|
return i; |
4136 |
|
return -1; |
4137 |
|
} |
4138 |
|
|
4139 |
|
/** |
4140 |
|
* Returns the number of children of this component which implement |
4141 |
|
* Accessible. Subclasses must override this if they can have children. |
4142 |
|
* |
4143 |
|
* @return the number of accessible children, default 0 |
4144 |
|
*/ |
4145 |
|
public int getAccessibleChildrenCount() |
4146 |
|
{ |
4147 |
|
return 0; |
4148 |
|
} |
4149 |
|
|
4150 |
|
/** |
4151 |
|
* Returns the ith accessible child. Subclasses must override this if |
4152 |
|
* they can have children. |
4153 |
|
* |
4154 |
|
* @return the ith accessible child, or null |
4155 |
|
* @see #getAccessibleChildrenCount() |
4156 |
|
*/ |
4157 |
|
public Accessible getAccessibleChild(int i) |
4158 |
|
{ |
4159 |
|
return null; |
4160 |
|
} |
4161 |
|
|
4162 |
|
/** |
4163 |
|
* Returns the locale of this component. |
4164 |
|
* |
4165 |
|
* @return the locale |
4166 |
|
* @throws IllegalComponentStateException if the locale is unknown |
4167 |
|
*/ |
4168 |
|
public Locale getLocale() |
4169 |
|
{ |
4170 |
|
return Component.this.getLocale(); |
4171 |
|
} |
4172 |
|
|
4173 |
|
/** |
4174 |
|
* Returns this, since it is an accessible component. |
4175 |
|
* |
4176 |
|
* @return the accessible component |
4177 |
|
*/ |
4178 |
|
public AccessibleComponent getAccessibleComponent() |
4179 |
|
{ |
4180 |
|
return this; |
4181 |
|
} |
4182 |
|
|
4183 |
|
/** |
4184 |
|
* Gets the background color. |
4185 |
|
* |
4186 |
|
* @return the background color |
4187 |
|
* @see #setBackground(Color) |
4188 |
|
*/ |
4189 |
|
public Color getBackground() |
4190 |
|
{ |
4191 |
|
return Component.this.getBackground(); |
4192 |
|
} |
4193 |
|
|
4194 |
|
/** |
4195 |
|
* Sets the background color. |
4196 |
|
* |
4197 |
|
* @param c the background color |
4198 |
|
* @see #getBackground() |
4199 |
|
* @see #isOpaque() |
4200 |
|
*/ |
4201 |
|
public void setBackground(Color c) |
4202 |
|
{ |
4203 |
|
Component.this.setBackground(c); |
4204 |
|
} |
4205 |
|
|
4206 |
|
/** |
4207 |
|
* Gets the foreground color. |
4208 |
|
* |
4209 |
|
* @return the foreground color |
4210 |
|
* @see #setForeground(Color) |
4211 |
|
*/ |
4212 |
|
public Color getForeground() |
4213 |
|
{ |
4214 |
|
return Component.this.getForeground(); |
4215 |
|
} |
4216 |
|
|
4217 |
|
/** |
4218 |
|
* Sets the foreground color. |
4219 |
|
* |
4220 |
|
* @param c the foreground color |
4221 |
|
* @see #getForeground() |
4222 |
|
*/ |
4223 |
|
public void setForeground(Color c) |
4224 |
|
{ |
4225 |
|
Component.this.setForeground(c); |
4226 |
|
} |
4227 |
|
|
4228 |
|
/** |
4229 |
|
* Gets the cursor. |
4230 |
|
* |
4231 |
|
* @return the cursor |
4232 |
|
* @see #setCursor(Cursor) |
4233 |
|
*/ |
4234 |
|
public Cursor getCursor() |
4235 |
|
{ |
4236 |
|
return Component.this.getCursor(); |
4237 |
|
} |
4238 |
|
|
4239 |
|
/** |
4240 |
|
* Sets the cursor. |
4241 |
|
* |
4242 |
|
* @param cursor the cursor |
4243 |
|
* @see #getCursor() |
4244 |
|
*/ |
4245 |
|
public void setCursor(Cursor cursor) |
4246 |
|
{ |
4247 |
|
Component.this.setCursor(cursor); |
4248 |
|
} |
4249 |
|
|
4250 |
|
/** |
4251 |
|
* Gets the font. |
4252 |
|
* |
4253 |
|
* @return the font |
4254 |
|
* @see #setFont(Font) |
4255 |
|
*/ |
4256 |
|
public Font getFont() |
4257 |
|
{ |
4258 |
|
return Component.this.getFont(); |
4259 |
|
} |
4260 |
|
|
4261 |
|
/** |
4262 |
|
* Sets the font. |
4263 |
|
* |
4264 |
|
* @param f the font |
4265 |
|
* @see #getFont() |
4266 |
|
*/ |
4267 |
|
public void setFont(Font f) |
4268 |
|
{ |
4269 |
|
Component.this.setFont(f); |
4270 |
|
} |
4271 |
|
|
4272 |
|
/** |
4273 |
|
* Gets the font metrics for a font. |
4274 |
|
* |
4275 |
|
* @param f the font to look up |
4276 |
|
* @return its metrics |
4277 |
|
* @throws NullPointerException if f is null |
4278 |
|
* @see #getFont() |
4279 |
|
*/ |
4280 |
|
public FontMetrics getFontMetrics(Font f) |
4281 |
|
{ |
4282 |
|
return Component.this.getFontMetrics(f); |
4283 |
|
} |
4284 |
|
|
4285 |
|
/** |
4286 |
|
* Tests if the component is enabled. |
4287 |
|
* |
4288 |
|
* @return true if the component is enabled |
4289 |
|
* @see #setEnabled(boolean) |
4290 |
|
* @see #getAccessibleStateSet() |
4291 |
|
* @see AccessibleState#ENABLED |
4292 |
|
*/ |
4293 |
|
public boolean isEnabled() |
4294 |
|
{ |
4295 |
|
return Component.this.isEnabled(); |
4296 |
|
} |
4297 |
|
|
4298 |
|
/** |
4299 |
|
* Set whether the component is enabled. |
4300 |
|
* |
4301 |
|
* @param b the new enabled status |
4302 |
|
* @see #isEnabled() |
4303 |
|
*/ |
4304 |
|
public void setEnabled(boolean b) |
4305 |
|
{ |
4306 |
|
Component.this.setEnabled(b); |
4307 |
|
} |
4308 |
|
|
4309 |
|
/** |
4310 |
|
* Test whether the component is visible (not necesarily showing). |
4311 |
|
* |
4312 |
|
* @return true if it is visible |
4313 |
|
* @see #setVisible(boolean) |
4314 |
|
* @see #getAccessibleStateSet() |
4315 |
|
* @see AccessibleState#VISIBLE |
4316 |
|
*/ |
4317 |
|
public boolean isVisible() |
4318 |
|
{ |
4319 |
|
return Component.this.isVisible(); |
4320 |
|
} |
4321 |
|
|
4322 |
|
/** |
4323 |
|
* Sets the visibility of this component. |
4324 |
|
* |
4325 |
|
* @param b the desired visibility |
4326 |
|
* @see #isVisible() |
4327 |
|
*/ |
4328 |
|
public void setVisible(boolean b) |
4329 |
|
{ |
4330 |
|
Component.this.setVisible(b); |
4331 |
|
} |
4332 |
|
|
4333 |
|
/** |
4334 |
|
* Tests if the component is showing. |
4335 |
|
* |
4336 |
|
* @return true if this is showing |
4337 |
|
*/ |
4338 |
|
public boolean isShowing() |
4339 |
|
{ |
4340 |
|
return Component.this.isShowing(); |
4341 |
|
} |
4342 |
|
|
4343 |
|
/** |
4344 |
|
* Tests if the point is contained in this component. |
4345 |
|
* |
4346 |
|
* @param p the point to check |
4347 |
|
* @return true if it is contained |
4348 |
|
* @throws NullPointerException if p is null |
4349 |
|
*/ |
4350 |
|
public boolean contains(Point p) |
4351 |
|
{ |
4352 |
|
return Component.this.contains(p.x, p.y); |
4353 |
|
} |
4354 |
|
|
4355 |
|
/** |
4356 |
|
* Returns the location of this object on the screen, or null if it is |
4357 |
|
* not showing. |
4358 |
|
* |
4359 |
|
* @return the location relative to screen coordinates, if showing |
4360 |
|
* @see #getBounds() |
4361 |
|
* @see #getLocation() |
4362 |
|
*/ |
4363 |
|
public Point getLocationOnScreen() |
4364 |
|
{ |
4365 |
|
return Component.this.isShowing() ? Component.this.getLocationOnScreen() |
4366 |
|
: null; |
4367 |
|
} |
4368 |
|
|
4369 |
|
/** |
4370 |
|
* Returns the location of this object relative to its parent's coordinate |
4371 |
|
* system, or null if it is not showing. |
4372 |
|
* |
4373 |
|
* @return the location |
4374 |
|
* @see #getBounds() |
4375 |
|
* @see #getLocationOnScreen() |
4376 |
|
*/ |
4377 |
|
public Point getLocation() |
4378 |
|
{ |
4379 |
|
return Component.this.isShowing() ? Component.this.getLocation() : null; |
4380 |
|
} |
4381 |
|
|
4382 |
|
/** |
4383 |
|
* Sets the location of this relative to its parent's coordinate system. |
4384 |
|
* |
4385 |
|
* @param p the location |
4386 |
|
* @throws NullPointerException if p is null |
4387 |
|
* @see #getLocation() |
4388 |
|
*/ |
4389 |
|
public void setLocation(Point p) |
4390 |
|
{ |
4391 |
|
Component.this.setLocation(p.x, p.y); |
4392 |
|
} |
4393 |
|
|
4394 |
|
/** |
4395 |
|
* Gets the bounds of this component, or null if it is not on screen. |
4396 |
|
* |
4397 |
|
* @return the bounds |
4398 |
|
* @see #contains(Point) |
4399 |
|
* @see #setBounds(Rectangle) |
4400 |
|
*/ |
4401 |
|
public Rectangle getBounds() |
4402 |
|
{ |
4403 |
|
return Component.this.isShowing() ? Component.this.getBounds() : null; |
4404 |
|
} |
4405 |
|
|
4406 |
|
/** |
4407 |
|
* Sets the bounds of this component. |
4408 |
|
* |
4409 |
|
* @param r the bounds |
4410 |
|
* @throws NullPointerException if r is null |
4411 |
|
* @see #getBounds() |
4412 |
|
*/ |
4413 |
|
public void setBounds(Rectangle r) |
4414 |
|
{ |
4415 |
|
Component.this.setBounds(r.x, r.y, r.width, r.height); |
4416 |
|
} |
4417 |
|
|
4418 |
|
/** |
4419 |
|
* Gets the size of this component, or null if it is not showing. |
4420 |
|
* |
4421 |
|
* @return the size |
4422 |
|
* @see #setSize(Dimension) |
4423 |
|
*/ |
4424 |
|
public Dimension getSize() |
4425 |
|
{ |
4426 |
|
return Component.this.isShowing() ? Component.this.getSize() : null; |
4427 |
|
} |
4428 |
|
|
4429 |
|
/** |
4430 |
|
* Sets the size of this component. |
4431 |
|
* |
4432 |
|
* @param d the size |
4433 |
|
* @throws NullPointerException if d is null |
4434 |
|
* @see #getSize() |
4435 |
|
*/ |
4436 |
|
public void setSize(Dimension d) |
4437 |
|
{ |
4438 |
|
Component.this.setSize(d.width, d.height); |
4439 |
|
} |
4440 |
|
|
4441 |
|
/** |
4442 |
|
* Returns the Accessible child at a point relative to the coordinate |
4443 |
|
* system of this component, if one exists, or null. Since components |
4444 |
|
* have no children, subclasses must override this to get anything besides |
4445 |
|
* null. |
4446 |
|
* |
4447 |
|
* @param p the point to check |
4448 |
|
* @return the accessible child at that point |
4449 |
|
* @throws NullPointerException if p is null |
4450 |
|
*/ |
4451 |
|
public Accessible getAccessibleAt(Point p) |
4452 |
|
{ |
4453 |
|
return null; |
4454 |
|
} |
4455 |
|
|
4456 |
|
/** |
4457 |
|
* Tests whether this component can accept focus. |
4458 |
|
* |
4459 |
|
* @return true if this is focus traversable |
4460 |
|
* @see #getAccessibleStateSet() |
4461 |
|
* @see AccessibleState#FOCUSABLE |
4462 |
|
* @see AccessibleState#FOCUSED |
4463 |
|
*/ |
4464 |
|
public boolean isFocusTraversable() |
4465 |
|
{ |
4466 |
|
return Component.this.isFocusTraversable(); |
4467 |
|
} |
4468 |
|
|
4469 |
|
/** |
4470 |
|
* Requests focus for this component. |
4471 |
|
* |
4472 |
|
* @see #isFocusTraversable() |
4473 |
|
*/ |
4474 |
|
public void requestFocus() |
4475 |
|
{ |
4476 |
|
Component.this.requestFocus(); |
4477 |
|
} |
4478 |
|
|
4479 |
|
/** |
4480 |
|
* Adds a focus listener. |
4481 |
|
* |
4482 |
|
* @param l the listener to add |
4483 |
|
*/ |
4484 |
|
public void addFocusListener(FocusListener l) |
4485 |
|
{ |
4486 |
|
Component.this.addFocusListener(l); |
4487 |
|
} |
4488 |
|
|
4489 |
|
/** |
4490 |
|
* Removes a focus listener. |
4491 |
|
* |
4492 |
|
* @param l the listener to remove |
4493 |
|
*/ |
4494 |
|
public void removeFocusListener(FocusListener l) |
4495 |
|
{ |
4496 |
|
Component.this.removeFocusListener(l); |
4497 |
|
} |
4498 |
|
|
4499 |
|
/** |
4500 |
|
* Converts component changes into property changes. |
4501 |
|
* |
4502 |
|
* @author Eric Blake <ebb9@email.byu.edu> |
4503 |
|
* @since 1.3 |
4504 |
|
* @status updated to 1.4 |
4505 |
|
*/ |
4506 |
|
protected class AccessibleAWTComponentHandler implements ComponentListener |
4507 |
|
{ |
4508 |
|
/** |
4509 |
|
* Default constructor. |
4510 |
|
*/ |
4511 |
|
protected AccessibleAWTComponentHandler() |
4512 |
|
{ |
4513 |
|
} |
4514 |
|
|
4515 |
|
/** |
4516 |
|
* Convert a component hidden to a property change. |
4517 |
|
* |
4518 |
|
* @param e the event to convert |
4519 |
|
*/ |
4520 |
|
public void componentHidden(ComponentEvent e) |
4521 |
|
{ |
4522 |
|
AccessibleAWTComponent.this.firePropertyChange |
4523 |
|
(ACCESSIBLE_STATE_PROPERTY, AccessibleState.VISIBLE, null); |
4524 |
|
} |
4525 |
|
|
4526 |
|
/** |
4527 |
|
* Convert a component shown to a property change. |
4528 |
|
* |
4529 |
|
* @param e the event to convert |
4530 |
|
*/ |
4531 |
|
public void componentShown(ComponentEvent e) |
4532 |
|
{ |
4533 |
|
AccessibleAWTComponent.this.firePropertyChange |
4534 |
|
(ACCESSIBLE_STATE_PROPERTY, null, AccessibleState.VISIBLE); |
4535 |
|
} |
4536 |
|
|
4537 |
|
/** |
4538 |
|
* Moving a component does not affect properties. |
4539 |
|
* |
4540 |
|
* @param e ignored |
4541 |
|
*/ |
4542 |
|
public void componentMoved(ComponentEvent e) |
4543 |
|
{ |
4544 |
|
} |
4545 |
|
|
4546 |
|
/** |
4547 |
|
* Resizing a component does not affect properties. |
4548 |
|
* |
4549 |
|
* @param e ignored |
4550 |
|
*/ |
4551 |
|
public void componentResized(ComponentEvent e) |
4552 |
|
{ |
4553 |
|
} |
4554 |
|
} // class AccessibleAWTComponentHandler |
4555 |
|
|
4556 |
|
/** |
4557 |
|
* Converts focus changes into property changes. |
4558 |
|
* |
4559 |
|
* @author Eric Blake <ebb9@email.byu.edu> |
4560 |
|
* @since 1.3 |
4561 |
|
* @status updated to 1.4 |
4562 |
|
*/ |
4563 |
|
protected class AccessibleAWTFocusHandler implements FocusListener |
4564 |
|
{ |
4565 |
|
/** |
4566 |
|
* Default constructor. |
4567 |
|
*/ |
4568 |
|
protected AccessibleAWTFocusHandler() |
4569 |
|
{ |
4570 |
|
} |
4571 |
|
|
4572 |
|
/** |
4573 |
|
* Convert a focus gained to a property change. |
4574 |
|
* |
4575 |
|
* @param e the event to convert |
4576 |
|
*/ |
4577 |
|
public void focusGained(FocusEvent e) |
4578 |
|
{ |
4579 |
|
AccessibleAWTComponent.this.firePropertyChange |
4580 |
|
(ACCESSIBLE_STATE_PROPERTY, null, AccessibleState.FOCUSED); |
4581 |
|
} |
4582 |
|
|
4583 |
|
/** |
4584 |
|
* Convert a focus lost to a property change. |
4585 |
|
* |
4586 |
|
* @param e the event to convert |
4587 |
|
*/ |
4588 |
|
public void focusLost(FocusEvent e) |
4589 |
|
{ |
4590 |
|
AccessibleAWTComponent.this.firePropertyChange |
4591 |
|
(ACCESSIBLE_STATE_PROPERTY, AccessibleState.FOCUSED, null); |
4592 |
|
} |
4593 |
|
} // class AccessibleAWTComponentHandler |
4594 |
} // class AccessibleAWTComponent |
} // class AccessibleAWTComponent |
4595 |
|
|
4596 |
|
/** |
4597 |
|
* This class provides support for blitting offscreen surfaces. |
4598 |
|
* |
4599 |
|
* @author Eric Blake <ebb9@email.byu.edu> |
4600 |
|
* @since 1.4 |
4601 |
|
* @XXX Shell class, to allow compilation. This needs documentation and |
4602 |
|
* correct implementation. |
4603 |
|
*/ |
4604 |
|
protected class BltBufferStrategy extends BufferStrategy |
4605 |
|
{ |
4606 |
|
protected BufferCapabilities caps; |
4607 |
|
protected VolatileImage[] backBuffers; |
4608 |
|
protected boolean validatedContents; |
4609 |
|
protected int width; |
4610 |
|
protected int height; |
4611 |
|
protected BltBufferStrategy(int num, BufferCapabilities caps) |
4612 |
|
{ |
4613 |
|
this.caps = caps; |
4614 |
|
createBackBuffers(num); |
4615 |
|
} |
4616 |
|
protected void createBackBuffers(int num) |
4617 |
|
{ |
4618 |
|
backBuffers = new VolatileImage[num]; |
4619 |
|
} |
4620 |
|
public BufferCapabilities getCapabilities() |
4621 |
|
{ |
4622 |
|
return caps; |
4623 |
|
} |
4624 |
|
public Graphics getDrawGraphics() { return null; } |
4625 |
|
public void show() {} |
4626 |
|
protected void revalidate() {} |
4627 |
|
public boolean contentsLost() { return false; } |
4628 |
|
public boolean contentsRestored() { return false; } |
4629 |
|
} // class BltBufferStrategy |
4630 |
|
|
4631 |
|
/** |
4632 |
|
* This class provides support for flipping component buffers. It is only |
4633 |
|
* designed for use by Canvas and Window. |
4634 |
|
* |
4635 |
|
* @author Eric Blake <ebb9@email.byu.edu> |
4636 |
|
* @since 1.4 |
4637 |
|
* @XXX Shell class, to allow compilation. This needs documentation and |
4638 |
|
* correct implementation. |
4639 |
|
*/ |
4640 |
|
protected class FlipBufferStrategy extends BufferStrategy |
4641 |
|
{ |
4642 |
|
protected int numBuffers; |
4643 |
|
protected BufferCapabilities caps; |
4644 |
|
protected Image drawBuffer; |
4645 |
|
protected VolatileImage drawVBuffer; |
4646 |
|
protected boolean validatedContents; |
4647 |
|
protected FlipBufferStrategy(int num, BufferCapabilities caps) |
4648 |
|
throws AWTException |
4649 |
|
{ |
4650 |
|
this.caps = caps; |
4651 |
|
createBuffers(num, caps); |
4652 |
|
} |
4653 |
|
protected void createBuffers(int num, BufferCapabilities caps) |
4654 |
|
throws AWTException {} |
4655 |
|
protected Image getBackBuffer() |
4656 |
|
{ |
4657 |
|
return drawBuffer; |
4658 |
|
} |
4659 |
|
protected void flip(BufferCapabilities.FlipContents flipAction) {} |
4660 |
|
protected void destroyBuffers() {} |
4661 |
|
public BufferCapabilities getCapabilities() |
4662 |
|
{ |
4663 |
|
return caps; |
4664 |
|
} |
4665 |
|
public Graphics getDrawGraphics() { return null; } |
4666 |
|
protected void revalidate() {} |
4667 |
|
public boolean contentsLost() { return false; } |
4668 |
|
public boolean contentsRestored() { return false; } |
4669 |
|
public void show() {} |
4670 |
|
} // class FlipBufferStrategy |
4671 |
} // class Component |
} // class Component |