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/* TitledBorder.java -- |
/* TitledBorder.java -- |
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Copyright (C) 2002 Free Software Foundation, Inc. |
Copyright (C) 2003 Free Software Foundation, Inc. |
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This file is part of GNU Classpath. |
This file is part of GNU Classpath. |
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import java.awt.Component; |
import java.awt.Component; |
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import java.awt.Dimension; |
import java.awt.Dimension; |
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import java.awt.Font; |
import java.awt.Font; |
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import java.awt.FontMetrics; |
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import java.awt.Graphics; |
import java.awt.Graphics; |
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import java.awt.Insets; |
import java.awt.Insets; |
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import java.awt.Rectangle; |
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import java.awt.Shape; |
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import javax.swing.UIManager; |
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public class TitledBorder extends AbstractBorder |
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/** |
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* A border that paints a title on top of another border. |
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* |
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* @author Sascha Brawer (brawer@dandelis.ch) |
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*/ |
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public class TitledBorder |
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extends AbstractBorder |
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{ |
{ |
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public static final int ABOVE_BOTTOM = 4; |
/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text at the default vertical position, which |
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* is in the middle of the top line of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int DEFAULT_POSITION = 0; |
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/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text above the top line of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int ABOVE_TOP = 1; |
public static final int ABOVE_TOP = 1; |
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public static final int BELOW_BOTTOM = 6; |
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/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text at the middle of the top line |
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* of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int TOP = 2; |
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/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text below the top line of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int BELOW_TOP = 3; |
public static final int BELOW_TOP = 3; |
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/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text above the bottom line of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int ABOVE_BOTTOM = 4; |
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/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text at the center of the bottom line |
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* of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int BOTTOM = 5; |
public static final int BOTTOM = 5; |
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public static final int CENTER = 2; |
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/** |
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* A value for the <code>titlePosition</code> property that vertically |
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* positions the title text below the bottom line of the border. |
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* |
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* @see #getTitlePosition() |
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* @see #setTitlePosition(int) |
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*/ |
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public static final int BELOW_BOTTOM = 6; |
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/** |
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* A value for the <code>titleJustification</code> property that |
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* horizontally aligns the title text with either the left or the |
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* right edge of the border, depending on the orientation of the |
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* component nested into the border. If the component orientation |
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* is left-to-right, the title text is aligned with the left edge; |
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* otherwise, it is aligned with the right edge. This is the same |
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* behavior as with {@link #LEADING}. |
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* |
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* @see #getTitleJustification() |
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* @see #setTitleJustification(int) |
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* @see java.awt.ComponentOrientation#isLeftToRight() |
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*/ |
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public static final int DEFAULT_JUSTIFICATION = 0; |
public static final int DEFAULT_JUSTIFICATION = 0; |
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public static final int DEFAULT_POSITION = 0; |
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public static final int LEADING = 4; |
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/** |
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* A value for the <code>titleJustification</code> property that |
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* horizontally aligns the title text with the left-hand edge of |
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* the border. |
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* |
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* @see #getTitleJustification() |
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* @see #setTitleJustification(int) |
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*/ |
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public static final int LEFT = 1; |
public static final int LEFT = 1; |
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/** |
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* A value for the <code>titleJustification</code> property that |
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* horizontally aligns the title text with the center of the border. |
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* |
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* @see #getTitleJustification() |
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* @see #setTitleJustification(int) |
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*/ |
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public static final int CENTER = 2; |
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/** |
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* A value for the <code>titleJustification</code> property that |
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* horizontally aligns the title text with the right-hand edge of |
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* the border. |
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* |
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* @see #getTitleJustification() |
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* @see #setTitleJustification(int) |
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*/ |
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public static final int RIGHT = 3; |
public static final int RIGHT = 3; |
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public static final int TOP = 2; |
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/** |
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* A value for the <code>titleJustification</code> property that |
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* horizontally aligns the title text with either the left or the |
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* right edge of the border, depending on the orientation of the |
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* component nested into the border. If the component orientation |
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* is left-to-right, the title text is aligned with the left edge; |
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* otherwise, it is aligned with the right edge. This is the same |
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* behavior as with {@link #DEFAULT_JUSTIFICATION}. |
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* |
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* @see #getTitleJustification() |
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* @see #setTitleJustification(int) |
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* @see java.awt.ComponentOrientation#isLeftToRight() |
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*/ |
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public static final int LEADING = 4; |
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/** |
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* A value for the <code>titleJustification</code> property that |
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* horizontally aligns the title text with either the right or the |
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* left edge of the border, depending on the orientation of the |
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* component nested into the border. If the component orientation |
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* is left-to-right, the title text is aligned with the right edge; |
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* otherwise, it is aligned with the left edge. |
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* |
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* @see #getTitleJustification() |
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* @see #setTitleJustification(int) |
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* @see java.awt.ComponentOrientation#isLeftToRight() |
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*/ |
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public static final int TRAILING = 5; |
public static final int TRAILING = 5; |
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/** |
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* The number of pixels between the inside of {@link #border} |
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* and the bordered component. |
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*/ |
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protected static final int EDGE_SPACING = 2; |
protected static final int EDGE_SPACING = 2; |
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/** |
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* The number of pixels between the outside of this TitledBorder |
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* and the beginning (if left-aligned) or end (if right-aligned) |
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* of the title text. |
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*/ |
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protected static final int TEXT_INSET_H = 5; |
protected static final int TEXT_INSET_H = 5; |
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/** |
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* The number of pixels between the title text and {@link #border}. |
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* This value is only relevant if the title text does not intersect |
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* {@link #border}. No intersection occurs if {@link #titlePosition} |
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* is one of {@link #ABOVE_TOP}, {@link #BELOW_TOP}, {@link #ABOVE_BOTTOM}, |
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* or {@link #BELOW_BOTTOM}. |
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*/ |
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protected static final int TEXT_SPACING = 2; |
protected static final int TEXT_SPACING = 2; |
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protected Border border; |
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/** |
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* Determined using the <code>serialver</code> tool of Apple/Sun JDK 1.3.1 |
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* on MacOS X 10.1.5. |
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*/ |
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static final long serialVersionUID = 8012999415147721601L; |
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/** |
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* The title, or <code>null</code> to display no title. |
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*/ |
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protected String title; |
protected String title; |
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protected Color titleColor; |
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protected Font titleFont; |
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protected int titleJustification; |
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protected int titlePosition; |
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private static Border defaultBorder = new LineBorder (Color.black); |
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private static Font defaultFont = null; |
/** |
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private static Color defaultColor = Color.black; |
* The border underneath the title. If this value is |
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* <code>null</code>, the border will be retrieved from the {@link |
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* javax.swing.UIManager}’s defaults table using the key |
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* <code>"TitledBorder.border"</code>. |
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*/ |
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protected Border border; |
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public TitledBorder (String title) |
/** |
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* The vertical position of the title text relative to the border, |
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* which is one of {@link #ABOVE_TOP}, {@link #TOP}, {@link |
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* #BELOW_TOP}, {@link #ABOVE_BOTTOM}, {@link #BOTTOM}, {@link |
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* #BELOW_BOTTOM}, or {@link #DEFAULT_POSITION}. |
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*/ |
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protected int titlePosition; |
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/** |
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* The horizontal alignment of the title text in relation to the |
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* border, which is one of {@link #LEFT}, {@link #CENTER}, {@link |
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* #RIGHT}, {@link #LEADING}, {@link #TRAILING}, or {@link |
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* #DEFAULT_JUSTIFICATION}. |
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*/ |
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protected int titleJustification; |
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/** |
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* The font for displaying the title text. If this value is |
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* <code>null</code>, the font will be retrieved from the {@link |
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* javax.swing.UIManager}’s defaults table using the key |
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* <code>"TitledBorder.font"</code>. |
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*/ |
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protected Font titleFont; |
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/** |
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* The color for displaying the title text. If this value is |
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* <code>null</code>, the color will be retrieved from the {@link |
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* javax.swing.UIManager}’s defaults table using the key |
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* <code>"TitledBorder.titleColor"</code>. |
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*/ |
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protected Color titleColor; |
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/** |
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* Constructs a TitledBorder given the text of its title. |
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* |
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* @param title the title text, or <code>null</code> to use no title text. |
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*/ |
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public TitledBorder(String title) |
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{ |
{ |
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this (defaultBorder, title, DEFAULT_JUSTIFICATION, DEFAULT_POSITION, |
this(/* border */ null, |
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defaultFont, defaultColor); |
title, DEFAULT_JUSTIFICATION, DEFAULT_POSITION, |
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/* titleFont */ null, /* titleColor */ null); |
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} |
} |
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public TitledBorder (Border border) |
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/** |
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* Constructs an initially untitled TitledBorder given another border. |
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* |
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* @param border the border underneath the title, or <code>null</code> |
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* to use a default from the current look and feel. |
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*/ |
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public TitledBorder(Border border) |
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{ |
{ |
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this (border, "", DEFAULT_JUSTIFICATION, DEFAULT_POSITION, defaultFont, |
this(border, /* title */ "", DEFAULT_JUSTIFICATION, DEFAULT_POSITION, |
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defaultColor); |
/* titleFont */ null, /* titleColor */ null); |
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} |
} |
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public TitledBorder (Border border, String title) |
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/** |
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* Constructs a TitledBorder given its border and title text. |
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* |
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* @param border the border underneath the title, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @param title the title text, or <code>null</code> to use no title |
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* text. |
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*/ |
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public TitledBorder(Border border, String title) |
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{ |
{ |
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this (border, title, DEFAULT_JUSTIFICATION, DEFAULT_POSITION, defaultFont, |
this(border, title, DEFAULT_JUSTIFICATION, DEFAULT_POSITION, |
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defaultColor); |
/* titleFont */ null, /* titleColor */ null); |
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} |
} |
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public TitledBorder (Border border, String title, int titleJustification, |
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int titlePosition) |
/** |
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* Constructs a TitledBorder given its border, title text, horizontal |
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* alignment, and vertical position. |
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* |
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* @param border the border underneath the title, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @param title the title text, or <code>null</code> to use no title |
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* text. |
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* |
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* @param titleJustification the horizontal alignment of the title |
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* text in relation to the border. The value must be one of |
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* {@link #LEFT}, {@link #CENTER}, {@link #RIGHT}, {@link #LEADING}, |
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* {@link #TRAILING}, or {@link #DEFAULT_JUSTIFICATION}. |
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* @param titlePosition the vertical position of the title text |
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* in relation to the border. The value must be one of |
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* {@link #ABOVE_TOP}, {@link #TOP}, {@link #BELOW_TOP}, |
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* {@link #ABOVE_BOTTOM}, {@link #BOTTOM}, {@link #BELOW_BOTTOM}, |
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* or {@link #DEFAULT_POSITION}. |
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* |
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* @throws IllegalArgumentException if <code>titleJustification</code> |
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* or <code>titlePosition</code> have an unsupported value. |
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*/ |
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public TitledBorder(Border border, String title, int titleJustification, |
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int titlePosition) |
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{ |
{ |
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this (border, title, titleJustification, titlePosition, defaultFont, |
this(border, title, titleJustification, titlePosition, |
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defaultColor); |
/* titleFont */ null, /* titleColor */ null); |
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} |
} |
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public TitledBorder (Border border, String title, int titleJustification, |
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int titlePosition, Font titleFont) |
/** |
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* Constructs a TitledBorder given its border, title text, horizontal |
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* alignment, vertical position, and font. |
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* |
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* @param border the border underneath the title, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @param title the title text, or <code>null</code> to use no title |
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* text. |
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* |
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* @param titleJustification the horizontal alignment of the title |
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* text in relation to the border. The value must be one of |
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* {@link #LEFT}, {@link #CENTER}, {@link #RIGHT}, {@link #LEADING}, |
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* {@link #TRAILING}, or {@link #DEFAULT_JUSTIFICATION}. |
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* |
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* @param titlePosition the vertical position of the title text |
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* in relation to the border. The value must be one of |
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* {@link #ABOVE_TOP}, {@link #TOP}, {@link #BELOW_TOP}, |
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* {@link #ABOVE_BOTTOM}, {@link #BOTTOM}, {@link #BELOW_BOTTOM}, |
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* or {@link #DEFAULT_POSITION}. |
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* |
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* @param titleFont the font for the title text, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @throws IllegalArgumentException if <code>titleJustification</code> |
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* or <code>titlePosition</code> have an unsupported value. |
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*/ |
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public TitledBorder(Border border, String title, int titleJustification, |
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int titlePosition, Font titleFont) |
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{ |
{ |
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this (border, title, titleJustification, titlePosition, titleFont, |
this(border, title, titleJustification, titlePosition, titleFont, |
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defaultColor); |
/* titleColor */ null); |
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} |
} |
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public TitledBorder (Border border, String title, int titleJustification, |
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int titlePosition, Font titleFont, Color titleColor) |
/** |
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* Constructs a TitledBorder given its border, title text, horizontal |
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* alignment, vertical position, font, and color. |
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* |
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* @param border the border underneath the title, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @param title the title text, or <code>null</code> to use no title |
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* text. |
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* |
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* @param titleJustification the horizontal alignment of the title |
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* text in relation to the border. The value must be one of |
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* {@link #LEFT}, {@link #CENTER}, {@link #RIGHT}, {@link #LEADING}, |
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* {@link #TRAILING}, or {@link #DEFAULT_JUSTIFICATION}. |
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* |
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* @param titlePosition the vertical position of the title text |
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* in relation to the border. The value must be one of |
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* {@link #ABOVE_TOP}, {@link #TOP}, {@link #BELOW_TOP}, |
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* {@link #ABOVE_BOTTOM}, {@link #BOTTOM}, {@link #BELOW_BOTTOM}, |
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* or {@link #DEFAULT_POSITION}. |
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* |
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* @param titleFont the font for the title text, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @param titleColor the color for the title text, or <code>null</code> |
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* to use a default from the current look and feel. |
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* |
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* @throws IllegalArgumentException if <code>titleJustification</code> |
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* or <code>titlePosition</code> have an unsupported value. |
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*/ |
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public TitledBorder(Border border, String title, int titleJustification, |
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int titlePosition, Font titleFont, Color titleColor) |
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{ |
{ |
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this.border = border; |
this.border = border; |
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this.title = title; |
this.title = title; |
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this.titleJustification = titleJustification; |
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/* Invoking the setter methods ensures that the newly constructed |
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* TitledBorder has valid property values. |
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*/ |
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setTitleJustification(titleJustification); |
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setTitlePosition(titlePosition); |
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this.titleFont = titleFont; |
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this.titleColor = titleColor; |
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} |
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/** |
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* Paints the border and the title text. |
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* |
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* @param c the component whose border is to be painted. |
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* @param g the graphics for painting. |
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* @param x the horizontal position for painting the border. |
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* @param y the vertical position for painting the border. |
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* @param width the width of the available area for painting the border. |
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* @param height the height of the available area for painting the border. |
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*/ |
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public void paintBorder(Component c, Graphics g, |
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int x, int y, int width, int height) |
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{ |
465 |
|
Measurements mes = getMeasurements(c); |
466 |
|
Font oldFont = g.getFont(); |
467 |
|
Color oldColor = g.getColor(); |
468 |
|
|
469 |
|
/** |
470 |
|
* A local helper class for painting the border without changing |
471 |
|
* any pixels inside the rectangle of the title text. |
472 |
|
*/ |
473 |
|
class BorderPainter |
474 |
|
{ |
475 |
|
private Component c; |
476 |
|
private Border b; |
477 |
|
private int x, y, width, height; |
478 |
|
|
479 |
|
/** |
480 |
|
* Constructs a BorderPainter. |
481 |
|
* |
482 |
|
* @param c the component whose border is being painted. |
483 |
|
* @param b the border object. |
484 |
|
* @param x the x coordinate of the rectangle delimiting the border. |
485 |
|
* @param y the y coordinate of the rectangle delimiting the border. |
486 |
|
* @param width the width of the rectangle delimiting the border. |
487 |
|
* @param height the width of the rectangle delimiting the border. |
488 |
|
*/ |
489 |
|
public BorderPainter(Component c, Border b, |
490 |
|
int x, int y, int width, int height) |
491 |
|
{ |
492 |
|
this.c = c; |
493 |
|
this.b = b; |
494 |
|
this.x = x; |
495 |
|
this.y = y; |
496 |
|
this.width = width; |
497 |
|
this.height = height; |
498 |
|
} |
499 |
|
|
500 |
|
|
501 |
|
/** |
502 |
|
* Paints the entire border. |
503 |
|
*/ |
504 |
|
public void paint(Graphics g) |
505 |
|
{ |
506 |
|
if (b != null) |
507 |
|
b.paintBorder(c, g, x, y, width - 1, height - 1); |
508 |
|
} |
509 |
|
|
510 |
|
|
511 |
|
/** |
512 |
|
* Paints the border, clipping the drawing operation to a |
513 |
|
* given rectangular area. |
514 |
|
*/ |
515 |
|
private void paint(Graphics g, |
516 |
|
int clipX, int clipY, int clipWidth, int clipHeight) |
517 |
|
{ |
518 |
|
Shape oldClip = g.getClip(); |
519 |
|
try |
520 |
|
{ |
521 |
|
g.clipRect(clipX, clipY, clipWidth, clipHeight); |
522 |
|
paint(g); |
523 |
|
} |
524 |
|
finally |
525 |
|
{ |
526 |
|
g.setClip(oldClip); |
527 |
|
} |
528 |
|
} |
529 |
|
|
530 |
|
|
531 |
|
/** |
532 |
|
* Paints the border without affecting a given rectangular area. |
533 |
|
* This is used for painting the border without drawing anything |
534 |
|
* underneath the title text. |
535 |
|
* |
536 |
|
* <p>Since we do not want to introduce unnecessary dependencies |
537 |
|
* on Java 2D, we perform the clipping without constructive geometry |
538 |
|
* (provided by java.awt.geom.Area). Instead, the border’s |
539 |
|
* bounding rectangle is split into smaller parts, which are then |
540 |
|
* clipped and painted individually.: |
541 |
|
* |
542 |
|
* <p><pre> |
543 |
|
* +--------------------+ +--------------------+ |
544 |
|
* | | | 1 | |
545 |
|
* | +--------+ | +---+--------+-------+ |
546 |
|
* | | hole | | |====> | 2 | hole | 3 | |
547 |
|
* | +--------+ | |---+--------+-------+ |
548 |
|
* | | | 4 | |
549 |
|
* +--------------------+ +--------------------+</pre> |
550 |
|
* |
551 |
|
*/ |
552 |
|
public void paintExcept(Graphics g, |
553 |
|
int holeX, int holeY, int holeWidth, int holeHeight) |
554 |
|
{ |
555 |
|
int stripeHeight; |
556 |
|
|
557 |
|
stripeHeight = holeY - y; |
558 |
|
if (stripeHeight > 0) |
559 |
|
paint(g, x, y, width, stripeHeight); // patch #1 in the image above |
560 |
|
|
561 |
|
stripeHeight = holeHeight; |
562 |
|
if (stripeHeight > 0) |
563 |
|
{ |
564 |
|
paint(g, x, holeY, holeX - x, stripeHeight); // patches #2 and #3 |
565 |
|
paint(g, holeX + holeWidth, holeY, width - (holeX + holeWidth), stripeHeight); |
566 |
|
} |
567 |
|
|
568 |
|
stripeHeight = height - (holeY - y + holeHeight); |
569 |
|
if (stripeHeight > 0) |
570 |
|
paint(g, x, y + height - stripeHeight, width, stripeHeight); // #4 |
571 |
|
} |
572 |
|
}; |
573 |
|
|
574 |
|
BorderPainter bp; |
575 |
|
int textX, textY, borderWidth, borderHeight; |
576 |
|
|
577 |
|
borderWidth = width - (mes.borderSpacing.left + mes.borderSpacing.right); |
578 |
|
borderHeight = height - (mes.borderSpacing.top + mes.borderSpacing.bottom); |
579 |
|
bp = new BorderPainter(c, getBorder(), |
580 |
|
x + mes.borderSpacing.left, y + mes.borderSpacing.top, |
581 |
|
borderWidth, borderHeight); |
582 |
|
|
583 |
|
switch (getRealTitleJustification(c)) |
584 |
|
{ |
585 |
|
case LEFT: |
586 |
|
textX = x + TEXT_INSET_H; |
587 |
|
break; |
588 |
|
|
589 |
|
case CENTER: |
590 |
|
textX = x + (borderWidth - mes.textWidth) / 2; |
591 |
|
break; |
592 |
|
|
593 |
|
case RIGHT: |
594 |
|
textX = x + borderWidth - (mes.textWidth + TEXT_INSET_H); |
595 |
|
break; |
596 |
|
|
597 |
|
default: |
598 |
|
throw new IllegalStateException(); |
599 |
|
} |
600 |
|
|
601 |
|
switch (titlePosition) |
602 |
|
{ |
603 |
|
case ABOVE_TOP: |
604 |
|
textY = y; |
605 |
|
break; |
606 |
|
|
607 |
|
case TOP: |
608 |
|
case DEFAULT_POSITION: |
609 |
|
default: |
610 |
|
textY = y + mes.borderSpacing.top + mes.borderInsets.top - mes.textAscent; |
611 |
|
break; |
612 |
|
|
613 |
|
case BELOW_TOP: |
614 |
|
textY = y + mes.borderSpacing.top + mes.borderInsets.top + TEXT_SPACING; |
615 |
|
break; |
616 |
|
|
617 |
|
case ABOVE_BOTTOM: |
618 |
|
textY = y + height - mes.borderSpacing.bottom - mes.borderInsets.bottom |
619 |
|
- TEXT_SPACING - (mes.textAscent + mes.textDescent); |
620 |
|
break; |
621 |
|
|
622 |
|
case BOTTOM: |
623 |
|
case BELOW_BOTTOM: |
624 |
|
textY = y + height - (mes.textAscent + mes.textDescent); |
625 |
|
break; |
626 |
|
} |
627 |
|
|
628 |
|
if (mes.trimmedText == null) |
629 |
|
bp.paint(g); |
630 |
|
else |
631 |
|
{ |
632 |
|
try |
633 |
|
{ |
634 |
|
g.setFont(mes.font); |
635 |
|
g.setColor(getTitleColor()); |
636 |
|
g.drawString(mes.trimmedText, textX, textY + mes.textAscent); |
637 |
|
} |
638 |
|
finally |
639 |
|
{ |
640 |
|
g.setFont(oldFont); |
641 |
|
g.setColor(oldColor); |
642 |
|
} |
643 |
|
bp.paintExcept(g, textX - 2, textY, |
644 |
|
mes.textWidth + 2, mes.textAscent + mes.textDescent); |
645 |
|
} |
646 |
|
} |
647 |
|
|
648 |
|
|
649 |
|
/** |
650 |
|
* Determines the insets of this border. |
651 |
|
* |
652 |
|
* @param c the component whose border is to be measured. |
653 |
|
* @return the insets of this border. |
654 |
|
*/ |
655 |
|
public Insets getBorderInsets(Component c) |
656 |
|
{ |
657 |
|
return getBorderInsets(c, new Insets(0, 0, 0, 0)); |
658 |
|
} |
659 |
|
|
660 |
|
|
661 |
|
/** |
662 |
|
* Determines the insets of this border, storing the result |
663 |
|
* into the given Insets object. |
664 |
|
* |
665 |
|
* @param insets an Insets object for holding the insets of this |
666 |
|
* border. |
667 |
|
* |
668 |
|
* @return the same object that was passed for <code>insets</code>, |
669 |
|
* but with changed field values. |
670 |
|
*/ |
671 |
|
public Insets getBorderInsets(Component c, Insets insets) |
672 |
|
{ |
673 |
|
return getMeasurements(c).getContentInsets(insets); |
674 |
|
} |
675 |
|
|
676 |
|
|
677 |
|
/** |
678 |
|
* Returns <code>false</code>, indicating that there are pixels inside |
679 |
|
* the area of this border where the background shines through. |
680 |
|
* |
681 |
|
* @return <code>false</code>. |
682 |
|
*/ |
683 |
|
public boolean isBorderOpaque() |
684 |
|
{ |
685 |
|
/* Note that the AbstractBorder.isBorderOpaque would also return |
686 |
|
* false, so there is actually no need to override the inherited |
687 |
|
* implementation. However, GNU Classpath strives for exact |
688 |
|
* compatibility with the Sun reference implementation, which |
689 |
|
* overrides isBorderOpaque for unknown reasons. |
690 |
|
*/ |
691 |
|
return false; |
692 |
|
} |
693 |
|
|
694 |
|
|
695 |
|
/** |
696 |
|
* Returns the text of the title. |
697 |
|
* |
698 |
|
* @return the title text, or <code>null</code> if no title is |
699 |
|
* displayed. |
700 |
|
*/ |
701 |
|
public String getTitle() |
702 |
|
{ |
703 |
|
return title; |
704 |
|
} |
705 |
|
|
706 |
|
|
707 |
|
/** |
708 |
|
* Retrieves the border underneath the title. If no border has been |
709 |
|
* set, or if it has been set to<code>null</code>, the current |
710 |
|
* {@link javax.swing.LookAndFeel} will be asked for a border |
711 |
|
* using the key <code>"TitledBorder.border"</code>. |
712 |
|
* |
713 |
|
* @return a border, or <code>null</code> if the current LookAndFeel |
714 |
|
* does not provide a border for the key |
715 |
|
* <code>"TitledBorder.border"</code>. |
716 |
|
* |
717 |
|
* @see javax.swing.UIManager#getBorder(Object) |
718 |
|
*/ |
719 |
|
public Border getBorder() |
720 |
|
{ |
721 |
|
if (border != null) |
722 |
|
return border; |
723 |
|
|
724 |
|
return UIManager.getBorder("TitledBorder.border"); |
725 |
|
} |
726 |
|
|
727 |
|
|
728 |
|
/** |
729 |
|
* Returns the vertical position of the title text in relation |
730 |
|
* to the border. |
731 |
|
* |
732 |
|
* @return one of the values {@link #ABOVE_TOP}, {@link #TOP}, |
733 |
|
* {@link #BELOW_TOP}, {@link #ABOVE_BOTTOM}, {@link #BOTTOM}, |
734 |
|
* {@link #BELOW_BOTTOM}, or {@link #DEFAULT_POSITION}. |
735 |
|
*/ |
736 |
|
public int getTitlePosition() |
737 |
|
{ |
738 |
|
return titlePosition; |
739 |
|
} |
740 |
|
|
741 |
|
|
742 |
|
/** |
743 |
|
* Returns the horizontal alignment of the title text in relation to |
744 |
|
* the border. |
745 |
|
* |
746 |
|
* @return one of the values {@link #LEFT}, {@link #CENTER}, {@link |
747 |
|
* #RIGHT}, {@link #LEADING}, {@link #TRAILING}, or {@link |
748 |
|
* #DEFAULT_JUSTIFICATION}. |
749 |
|
*/ |
750 |
|
public int getTitleJustification() |
751 |
|
{ |
752 |
|
return titleJustification; |
753 |
|
} |
754 |
|
|
755 |
|
|
756 |
|
/** |
757 |
|
* Retrieves the font for displaying the title text. If no font has |
758 |
|
* been set, or if it has been set to<code>null</code>, the current |
759 |
|
* {@link javax.swing.LookAndFeel} will be asked for a font |
760 |
|
* using the key <code>"TitledBorder.font"</code>. |
761 |
|
* |
762 |
|
* @return a font, or <code>null</code> if the current LookAndFeel |
763 |
|
* does not provide a font for the key |
764 |
|
* <code>"TitledBorder.font"</code>. |
765 |
|
* |
766 |
|
* @see javax.swing.UIManager#getFont(Object) |
767 |
|
*/ |
768 |
|
public Font getTitleFont() |
769 |
|
{ |
770 |
|
if (titleFont != null) |
771 |
|
return titleFont; |
772 |
|
|
773 |
|
return UIManager.getFont("TitledBorder.font"); |
774 |
|
} |
775 |
|
|
776 |
|
|
777 |
|
/** |
778 |
|
* Retrieves the color for displaying the title text. If no color has |
779 |
|
* been set, or if it has been set to<code>null</code>, the current |
780 |
|
* {@link javax.swing.LookAndFeel} will be asked for a color |
781 |
|
* using the key <code>"TitledBorder.titleColor"</code>. |
782 |
|
* |
783 |
|
* @return a color, or <code>null</code> if the current LookAndFeel |
784 |
|
* does not provide a color for the key |
785 |
|
* <code>"TitledBorder.titleColor"</code>. |
786 |
|
* |
787 |
|
* @see javax.swing.UIManager#getColor(Object) |
788 |
|
*/ |
789 |
|
public Color getTitleColor() |
790 |
|
{ |
791 |
|
if (titleColor != null) |
792 |
|
return titleColor; |
793 |
|
|
794 |
|
return UIManager.getColor("TitledBorder.titleColor"); |
795 |
|
} |
796 |
|
|
797 |
|
|
798 |
|
/** |
799 |
|
* Sets the text of the title. |
800 |
|
* |
801 |
|
* @param title the new title text, or <code>null</code> for displaying |
802 |
|
* no text at all. |
803 |
|
*/ |
804 |
|
public void setTitle(String title) |
805 |
|
{ |
806 |
|
// Swing borders are not JavaBeans, thus no need to fire an event. |
807 |
|
this.title = title; |
808 |
|
} |
809 |
|
|
810 |
|
|
811 |
|
/** |
812 |
|
* Sets the border underneath the title. |
813 |
|
* |
814 |
|
* @param border a border, or <code>null</code> to use the |
815 |
|
* border that is supplied by the current LookAndFeel. |
816 |
|
* |
817 |
|
* @see #getBorder() |
818 |
|
*/ |
819 |
|
public void setBorder(Border border) |
820 |
|
{ |
821 |
|
// Swing borders are not JavaBeans, thus no need to fire an event. |
822 |
|
this.border = border; |
823 |
|
} |
824 |
|
|
825 |
|
|
826 |
|
/** |
827 |
|
* Sets the vertical position of the title text in relation |
828 |
|
* to the border. |
829 |
|
* |
830 |
|
* @param titlePosition one of the values {@link #ABOVE_TOP}, |
831 |
|
* {@link #TOP}, {@link #BELOW_TOP}, {@link #ABOVE_BOTTOM}, |
832 |
|
* {@link #BOTTOM}, {@link #BELOW_BOTTOM}, |
833 |
|
* or {@link #DEFAULT_POSITION}. |
834 |
|
* |
835 |
|
* @throws IllegalArgumentException if an unsupported value is passed |
836 |
|
* for <code>titlePosition</code>. |
837 |
|
*/ |
838 |
|
public void setTitlePosition(int titlePosition) |
839 |
|
{ |
840 |
|
if ((titlePosition < DEFAULT_POSITION) || (titlePosition > BELOW_BOTTOM)) |
841 |
|
throw new IllegalArgumentException(); |
842 |
|
|
843 |
|
// Swing borders are not JavaBeans, thus no need to fire an event. |
844 |
this.titlePosition = titlePosition; |
this.titlePosition = titlePosition; |
845 |
|
} |
846 |
|
|
847 |
|
|
848 |
|
/** |
849 |
|
* Sets the horizontal alignment of the title text in relation to the border. |
850 |
|
* |
851 |
|
* @param titleJustification the new alignment, which must be one of |
852 |
|
* {@link #LEFT}, {@link #CENTER}, {@link #RIGHT}, {@link #LEADING}, |
853 |
|
* {@link #TRAILING}, or {@link #DEFAULT_JUSTIFICATION}. |
854 |
|
* |
855 |
|
* @throws IllegalArgumentException if an unsupported value is passed |
856 |
|
* for <code>titleJustification</code>. |
857 |
|
*/ |
858 |
|
public void setTitleJustification(int titleJustification) |
859 |
|
{ |
860 |
|
if ((titleJustification < DEFAULT_JUSTIFICATION) |
861 |
|
|| (titleJustification > TRAILING)) |
862 |
|
throw new IllegalArgumentException(); |
863 |
|
|
864 |
|
// Swing borders are not JavaBeans, thus no need to fire an event. |
865 |
|
this.titleJustification = titleJustification; |
866 |
|
} |
867 |
|
|
868 |
|
|
869 |
|
/** |
870 |
|
* Sets the font for displaying the title text. |
871 |
|
* |
872 |
|
* @param titleFont the font, or <code>null</code> to use the font |
873 |
|
* provided by the current {@link javax.swing.LookAndFeel}. |
874 |
|
* |
875 |
|
* @see #getTitleFont() |
876 |
|
*/ |
877 |
|
public void setTitleFont(Font titleFont) |
878 |
|
{ |
879 |
|
// Swing borders are not JavaBeans, thus no need to fire an event. |
880 |
this.titleFont = titleFont; |
this.titleFont = titleFont; |
881 |
|
} |
882 |
|
|
883 |
|
|
884 |
|
/** |
885 |
|
* Sets the color for displaying the title text. |
886 |
|
* |
887 |
|
* @param titleColor the color, or <code>null</code> to use the color |
888 |
|
* provided by the current {@link javax.swing.LookAndFeel}. |
889 |
|
* |
890 |
|
* @see #getTitleColor() |
891 |
|
*/ |
892 |
|
public void setTitleColor(Color titleColor) |
893 |
|
{ |
894 |
|
// Swing borders are not JavaBeans, thus no need to fire an event. |
895 |
this.titleColor = titleColor; |
this.titleColor = titleColor; |
896 |
} |
} |
897 |
|
|
898 |
public Insets getBorderInsets(Component c, |
|
899 |
Insets s) |
/** |
900 |
|
* Calculates the minimum size needed for displaying the border |
901 |
|
* and its title. |
902 |
|
* |
903 |
|
* @param c the Component for which this TitledBorder consitutes |
904 |
|
* a border. |
905 |
|
*/ |
906 |
|
public Dimension getMinimumSize(Component c) |
907 |
|
{ |
908 |
|
return getMeasurements(c).getMinimumSize(); |
909 |
|
} |
910 |
|
|
911 |
|
|
912 |
|
/** |
913 |
|
* Returns the font that is used for displaying the title text for |
914 |
|
* a given Component. |
915 |
|
* |
916 |
|
* @param c the Component for which this TitledBorder is the border. |
917 |
|
* |
918 |
|
* @return The font returned by {@link #getTitleFont()}, or a fallback |
919 |
|
* if {@link #getTitleFont()} returned <code>null</code>. |
920 |
|
*/ |
921 |
|
protected Font getFont(Component c) |
922 |
|
{ |
923 |
|
Font f; |
924 |
|
|
925 |
|
f = getTitleFont(); |
926 |
|
if (f != null) |
927 |
|
return f; |
928 |
|
|
929 |
|
return new Font("Dialog", Font.PLAIN, 12); |
930 |
|
} |
931 |
|
|
932 |
|
|
933 |
|
/** |
934 |
|
* Returns the horizontal alignment of the title text in relation to |
935 |
|
* the border, mapping the component-dependent alignment constants |
936 |
|
* {@link #LEADING}, {@link #TRAILING} and {@link #DEFAULT_JUSTIFICATION} |
937 |
|
* to the correct value according to the embedded component’s |
938 |
|
* orientation. |
939 |
|
* |
940 |
|
* @param c the Component for which this TitledBorder is the border. |
941 |
|
* |
942 |
|
* @return one of the values {@link #LEFT}, {@link #CENTER}, or {@link |
943 |
|
* #RIGHT}. |
944 |
|
*/ |
945 |
|
private int getRealTitleJustification(Component c) |
946 |
|
{ |
947 |
|
switch (titleJustification) |
948 |
|
{ |
949 |
|
case DEFAULT_JUSTIFICATION: |
950 |
|
case LEADING: |
951 |
|
if ((c == null) || c.getComponentOrientation().isLeftToRight()) |
952 |
|
return LEFT; |
953 |
|
else |
954 |
|
return RIGHT; |
955 |
|
|
956 |
|
case TRAILING: |
957 |
|
if ((c == null) || c.getComponentOrientation().isLeftToRight()) |
958 |
|
return RIGHT; |
959 |
|
else |
960 |
|
return LEFT; |
961 |
|
|
962 |
|
default: |
963 |
|
return titleJustification; |
964 |
|
} |
965 |
|
} |
966 |
|
|
967 |
|
|
968 |
|
/** |
969 |
|
* Performs various measurements for the current state of this TitledBorder |
970 |
|
* and the given Component. |
971 |
|
*/ |
972 |
|
private Measurements getMeasurements(Component c) |
973 |
|
{ |
974 |
|
Measurements m = new Measurements(); |
975 |
|
FontMetrics fmet; |
976 |
|
|
977 |
|
m.font = getFont(c); |
978 |
|
fmet = c.getFontMetrics(m.font); |
979 |
|
m.border = getBorder(); |
980 |
|
if (m.border != null) |
981 |
|
m.borderInsets = m.border.getBorderInsets(c); |
982 |
|
else |
983 |
|
m.borderInsets = new Insets(0, 0, 0, 0); |
984 |
|
|
985 |
|
if (title != null) |
986 |
{ |
{ |
987 |
s.left = s.right = s.top = s.bottom = 5; |
m.trimmedText = title.trim(); |
988 |
return s; |
if (m.trimmedText.length() == 0) |
989 |
|
m.trimmedText = null; |
990 |
} |
} |
991 |
|
|
992 |
|
m.textAscent = fmet.getAscent(); |
993 |
|
m.textDescent = fmet.getDescent(); |
994 |
|
if (m.trimmedText != null) |
995 |
|
m.textWidth = fmet.stringWidth(m.trimmedText) + 3; |
996 |
|
|
997 |
|
m.edgeSpacing = new Insets(EDGE_SPACING, EDGE_SPACING, EDGE_SPACING, EDGE_SPACING); |
998 |
|
m.borderSpacing = new Insets(0, 0, 0, 0); |
999 |
|
|
1000 |
|
switch (titlePosition) |
1001 |
|
{ |
1002 |
|
case ABOVE_TOP: |
1003 |
|
m.borderSpacing.top += m.textAscent + m.textDescent + TEXT_SPACING; |
1004 |
|
break; |
1005 |
|
|
1006 |
|
case BELOW_TOP: |
1007 |
|
m.edgeSpacing.top += m.textAscent + m.textDescent + TEXT_SPACING; |
1008 |
|
break; |
1009 |
|
|
1010 |
|
case ABOVE_BOTTOM: |
1011 |
|
m.edgeSpacing.bottom += m.textAscent + m.textDescent + TEXT_SPACING; |
1012 |
|
break; |
1013 |
|
|
1014 |
|
case BOTTOM: |
1015 |
|
m.edgeSpacing.bottom += Math.max(m.textAscent - m.borderInsets.bottom, 0); |
1016 |
|
m.borderSpacing.bottom += m.textDescent; |
1017 |
|
break; |
1018 |
|
|
1019 |
|
case BELOW_BOTTOM: |
1020 |
|
m.borderSpacing.bottom += m.textAscent + m.textDescent + TEXT_SPACING; |
1021 |
|
break; |
1022 |
|
|
1023 |
|
default: |
1024 |
|
m.borderSpacing.top += m.textAscent; |
1025 |
|
} |
1026 |
|
|
1027 |
|
return m; |
1028 |
|
} |
1029 |
|
|
1030 |
|
|
1031 |
|
/** |
1032 |
|
* A private helper class for holding the result of measuring the |
1033 |
|
* distances of a TitledBorder. While it would be possible to cache |
1034 |
|
* these objects, it does not seem to be worth the effort. Note that |
1035 |
|
* invalidating the cache would be tricky, especially since there is |
1036 |
|
* no notification mechanism that would inform the cache when |
1037 |
|
* border has changed, so it would return different insets. |
1038 |
|
*/ |
1039 |
|
private static class Measurements |
1040 |
|
{ |
1041 |
|
/** |
1042 |
|
* The font used for displaying the title text. Note that it can |
1043 |
|
* well be that the TitledBorder’s font is <code>null</code>, |
1044 |
|
* which means that the font is to be retrieved from the current |
1045 |
|
* LookAndFeel. In this case, this <code>font</code> field will |
1046 |
|
* contain the result of the retrieval. Therefore, it is safe |
1047 |
|
* to assume that his <code>font</code> field will never have |
1048 |
|
* a <code>null</code> value. |
1049 |
|
*/ |
1050 |
|
Font font; |
1051 |
|
|
1052 |
|
|
1053 |
|
/** |
1054 |
|
* The number of pixels between the base line and the top of the |
1055 |
|
* text box. |
1056 |
|
*/ |
1057 |
|
int textAscent; |
1058 |
|
|
1059 |
|
|
1060 |
|
/** |
1061 |
|
* The number of pixels between the base line and the bottom of |
1062 |
|
* the text box. |
1063 |
|
*/ |
1064 |
|
int textDescent; |
1065 |
|
|
1066 |
|
|
1067 |
|
/** |
1068 |
|
* The title text after removing leading and trailing white space |
1069 |
|
* characters. If the title consists only of white space, the |
1070 |
|
* value of <code>trimmedText</code> will be <code>null</code>. |
1071 |
|
*/ |
1072 |
|
String trimmedText; |
1073 |
|
|
1074 |
|
|
1075 |
|
/** |
1076 |
|
* The width of the trimmed title text in pixels. |
1077 |
|
*/ |
1078 |
|
int textWidth; |
1079 |
|
|
1080 |
|
|
1081 |
|
/** |
1082 |
|
* The border that constitues the "interior" border |
1083 |
|
* underneath the title text. |
1084 |
|
*/ |
1085 |
|
Border border; |
1086 |
|
|
1087 |
|
|
1088 |
|
/** |
1089 |
|
* The distance between the TitledBorder and the interior border. |
1090 |
|
*/ |
1091 |
|
Insets borderSpacing; |
1092 |
|
|
1093 |
|
|
1094 |
|
/** |
1095 |
|
* The width of the interior border, as returned by |
1096 |
|
* <code>border.getBorderInsets()</code>. |
1097 |
|
*/ |
1098 |
|
Insets borderInsets; |
1099 |
|
|
1100 |
|
|
1101 |
public boolean isBorderOpaque() |
/** |
1102 |
|
* The distance between the interior border and the nested |
1103 |
|
* Component for which this TitledBorder is a border. |
1104 |
|
*/ |
1105 |
|
Insets edgeSpacing; |
1106 |
|
|
1107 |
|
|
1108 |
|
/** |
1109 |
|
* Determines the insets of the nested component when it has a |
1110 |
|
* TitledBorder as its border. Used by {@link |
1111 |
|
* TitledBorder#getBorderInsets()}. |
1112 |
|
* |
1113 |
|
* @param i an Insets object for storing the results into, or |
1114 |
|
* <code>null</code> to cause the creation of a |
1115 |
|
* new instance. |
1116 |
|
* |
1117 |
|
* @return the <code>i</code> object, or a new Insets object |
1118 |
|
* if <code>null</code> was passed for <code>i</code>. |
1119 |
|
*/ |
1120 |
|
public Insets getContentInsets(Insets i) |
1121 |
{ |
{ |
1122 |
return false; |
if (i == null) |
1123 |
|
i = new Insets(0, 0, 0, 0); |
1124 |
|
i.left = borderSpacing.left + borderInsets.left + edgeSpacing.left; |
1125 |
|
i.right = borderSpacing.right + borderInsets.right + edgeSpacing.right; |
1126 |
|
i.top = borderSpacing.top + borderInsets.top + edgeSpacing.top; |
1127 |
|
i.bottom = borderSpacing.bottom + borderInsets.bottom + edgeSpacing.bottom; |
1128 |
|
return i; |
1129 |
} |
} |
1130 |
|
|
1131 |
public void paintBorder(Component c, |
|
1132 |
Graphics g, |
/** |
1133 |
int x, |
* Calculates the minimum size needed for displaying the border |
1134 |
int y, |
* and its title. Used by {@link TitledBorder#getMiminumSize()}. |
1135 |
int width, |
*/ |
1136 |
int height) |
public Dimension getMinimumSize() |
1137 |
{ |
{ |
1138 |
|
int width; |
1139 |
|
Insets insets; |
1140 |
|
|
1141 |
|
insets = getContentInsets(null); |
1142 |
|
width = Math.max(insets.left + insets.right, textWidth + 2 * TEXT_INSET_H); |
1143 |
|
return new Dimension(width, insets.top + insets.bottom); |
1144 |
} |
} |
1145 |
|
} |
1146 |
} |
} |
|
|
|