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import java.awt.Color; |
import java.awt.Color; |
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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.Insets; |
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import java.awt.Graphics; |
import java.awt.Graphics; |
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import java.awt.Insets; |
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import java.awt.Polygon; |
import java.awt.Polygon; |
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import java.awt.Rectangle; |
import java.awt.Rectangle; |
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import javax.swing.border.Border; |
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import javax.swing.Icon; |
import javax.swing.Icon; |
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import javax.swing.JButton; |
import javax.swing.JButton; |
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import javax.swing.SwingConstants; |
import javax.swing.SwingConstants; |
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import javax.swing.border.Border; |
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/** |
/** |
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*/ |
*/ |
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public class BasicArrowButton extends JButton implements SwingConstants |
public class BasicArrowButton extends JButton implements SwingConstants |
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{ |
{ |
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/** |
/** The default size of the Arrow buttons. */ |
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* A private helper class that draws icons. |
private static int defaultSize = 10; |
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*/ |
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private class arrowIcon implements Icon |
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{ |
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/** The polygon that describes the icon. */ |
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private Polygon arrow; |
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/** The size of the icon. */ |
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private int size = 10; |
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/** |
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* Creates a new arrowIcon object using the given arrow polygon. |
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* |
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* @param arrow The polygon that describes the arrow. |
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*/ |
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public arrowIcon(Polygon arrow) |
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{ |
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this.arrow = arrow; |
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} |
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/** |
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* Returns the height of the icon. |
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* |
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* @return The height of the icon. |
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*/ |
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public int getIconHeight() |
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{ |
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return size; |
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} |
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/** |
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* Returns the width of the icon. |
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* |
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* @return The width of the icon. |
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*/ |
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public int getIconWidth() |
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{ |
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return size; |
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} |
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/** |
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* Sets the size of the icon. |
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* |
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* @param size The size of the icon. |
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*/ |
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public void setSize(int size) |
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{ |
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this.size = size; |
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} |
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/** |
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* Sets the arrow polygon. |
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* |
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* @param arrow The arrow polygon. |
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*/ |
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public void setArrow(Polygon arrow) |
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{ |
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this.arrow = arrow; |
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} |
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/** |
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* Paints the icon. |
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* |
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* @param c The Component to paint for. |
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* @param g The Graphics object to draw with. |
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* @param x The X coordinate to draw at. |
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* @param y The Y coordinate to draw at. |
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*/ |
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public void paintIcon(Component c, Graphics g, int x, int y) |
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{ |
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Color arrowColor; |
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if (c.isEnabled()) |
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arrowColor = darkShadow; |
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else |
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arrowColor = shadow; |
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paintIconImpl(g, x, y, arrowColor); |
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} |
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/** |
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* This method does the actual painting work. |
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* |
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* @param g The Graphics object to paint with. |
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* @param x The x coordinate to paint at. |
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* @param y The y coordinate to paint at. |
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* @param arrowColor The color to paint the arrow with. |
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*/ |
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public void paintIconImpl(Graphics g, int x, int y, Color arrowColor) |
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{ |
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g.translate(x, y); |
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Color saved = g.getColor(); |
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g.setColor(arrowColor); |
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g.fillPolygon(arrow); |
/** The Polygon that points up. */ |
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private static Polygon upIcon = new Polygon(new int[] { 0, 5, 9 }, |
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g.setColor(saved); |
new int[] { 7, 2, 7 }, 3); |
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g.translate(-x, -y); |
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} |
/** The Polygon that points down. */ |
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} |
private static Polygon downIcon = new Polygon(new int[] { 1, 5, 9 }, |
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new int[] { 3, 7, 3 }, 3); |
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/** The Polygon that points left. */ |
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private static Polygon leftIcon = new Polygon(new int[] { 7, 3, 7 }, |
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new int[] { 1, 5, 9 }, 3); |
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/** The Polygon that points right. */ |
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private static Polygon rightIcon = new Polygon(new int[] { 3, 7, 3 }, |
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new int[] { 1, 5, 9 }, 3); |
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/** The direction to point in. */ |
/** The direction to point in. */ |
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protected int direction; |
protected int direction; |
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/** The color the arrow is painted in if disabled and the bottom and |
/** |
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* right edges of the button. */ |
* The color the arrow is painted in if disabled and the bottom and right |
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private transient Color shadow = Color.gray; |
* edges of the button. |
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*/ |
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/** The color the arrow is painted in if enabled and the bottom and |
private transient Color shadow = Color.GRAY; |
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* right edges of the button. */ |
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private transient Color darkShadow = Color.BLACK; |
/** |
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* The color the arrow is painted in if enabled and the bottom and right |
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* edges of the button. |
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*/ |
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private transient Color darkShadow = Color.DARK_GRAY; |
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/** The top and left edges of the button. */ |
/** The top and left edges of the button. */ |
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private transient Color highlight = Color.BLACK; |
private transient Color highlight = Color.WHITE; |
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/** The border around the ArrowButton. */ |
/** The border around the ArrowButton. */ |
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private transient Border tmpBorder = new Border() |
private transient Border buttonBorder = new Border() |
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{ |
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public Insets getBorderInsets(Component c) |
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{ |
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return new Insets(0, 0, 0, 0); |
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} |
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public boolean isBorderOpaque() |
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{ |
{ |
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return false; |
public Insets getBorderInsets(Component c) |
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} |
{ |
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return new Insets(2, 2, 2, 2); |
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public void paintBorder(Component c, Graphics g, int x, int y, int w, int h) |
} |
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{ |
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Rectangle bounds = getBounds(); |
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Color saved = g.getColor(); |
public boolean isBorderOpaque() |
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g.setColor(highlight); |
{ |
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return true; |
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} |
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g.drawLine(bounds.x, bounds.y, bounds.x, bounds.y + bounds.height); |
public void paintBorder(Component c, Graphics g, int x, int y, int w, |
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g.drawLine(bounds.x, bounds.y, bounds.x + bounds.width, bounds.y); |
int h) |
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{ |
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System.out.println("PAINTING BORDER"); |
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Color saved = g.getColor(); |
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g.setColor(highlight); |
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g.setColor(shadow); |
g.drawLine(x + 1, y + 1, x + w - 1, y + 1); |
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g.drawLine(x + 1, y + 1, x + 1, y + h - 1); |
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g.drawLine(bounds.x + 1, bounds.y + bounds.height - 1, |
g.setColor(shadow); |
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bounds.x + bounds.width - 1, bounds.y + bounds.height - 1); |
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g.drawLine(bounds.x + bounds.width - 1, bounds.y + 1, |
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bounds.x + bounds.width - 1, bounds.y + bounds.height - 1); |
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g.setColor(darkShadow); |
g.drawLine(x + 1, y + h - 1, x + w - 1, y + h - 1); |
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g.drawLine(x + w - 1, y + 1, x + w - 1, y + h - 1); |
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g.drawLine(bounds.x, bounds.y + bounds.height, bounds.x + bounds.width, |
g.setColor(darkShadow); |
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bounds.y + bounds.height); |
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g.drawLine(bounds.x + bounds.width, bounds.y, bounds.x + bounds.width, |
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bounds.y + bounds.height); |
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g.setColor(saved); |
g.drawLine(x, y + h, x + w, y + h); |
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} |
g.drawLine(x + w, y, x + w, y + h); |
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}; |
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g.setColor(saved); |
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} |
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}; |
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/** |
/** |
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* Creates a new BasicArrowButton object. |
* Creates a new BasicArrowButton object. |
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public BasicArrowButton(int direction) |
public BasicArrowButton(int direction) |
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{ |
{ |
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super(); |
super(); |
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setBorder(buttonBorder); |
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setDirection(direction); |
setDirection(direction); |
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setBorder(tmpBorder); |
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} |
} |
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/** |
/** |
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* Creates a new BasicArrowButton object with the given colors and |
* Creates a new BasicArrowButton object with the given colors and |
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* direction. |
* direction. |
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* |
* |
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* @param direction The direction to point in. |
* @param direction The direction to point in. |
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} |
} |
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/** |
/** |
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* This method returns whether the focus can traverse to this component. |
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* |
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* @return Whether the focus can traverse to this component. |
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*/ |
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public boolean isFocusTraversable() |
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{ |
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return false; |
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} |
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/** |
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* This method returns the direction of the arrow. |
* This method returns the direction of the arrow. |
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* |
* |
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* @return The direction of the arrow. |
* @return The direction of the arrow. |
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*/ |
*/ |
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public void setDirection(int dir) |
public void setDirection(int dir) |
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{ |
{ |
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Polygon arrow = getArrow(dir, 10); |
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if (getIcon() == null) |
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setIcon(new arrowIcon(arrow)); |
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else |
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((arrowIcon) getIcon()).setArrow(arrow); |
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this.direction = dir; |
this.direction = dir; |
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} |
} |
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/** |
/** |
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* This method paints the arrow button. |
* This method paints the arrow button. The painting is delegated to the |
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* paintTriangle method. |
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* |
* |
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* @param g The Graphics object to paint with. |
* @param g The Graphics object to paint with. |
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*/ |
*/ |
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public void paint(Graphics g) |
public void paint(Graphics g) |
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{ |
{ |
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super.paint(g); |
super.paint(g); |
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Insets insets = getInsets(); |
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Rectangle bounds = getBounds(); |
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int x = insets.left |
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+ (bounds.width - insets.left - insets.right - defaultSize) / 2; |
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int y = insets.top |
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+ (bounds.height - insets.left - insets.right - defaultSize) / 2; |
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paintTriangle(g, x, y, defaultSize, direction, isEnabled()); |
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} |
} |
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/** |
/** |
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*/ |
*/ |
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public Dimension getPreferredSize() |
public Dimension getPreferredSize() |
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{ |
{ |
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return new Dimension(getIcon().getIconWidth(), getIcon().getIconHeight()); |
Insets insets = getInsets(); |
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int w = defaultSize + insets.left + insets.right; |
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int h = defaultSize + insets.top + insets.bottom; |
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return new Dimension(w, h); |
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} |
} |
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/** |
/** |
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} |
} |
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/** |
/** |
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* The method paints a triangle with the given size and direction at |
* The method paints a triangle with the given size and direction at the |
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* the given x and y coordinates. |
* given x and y coordinates. |
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* |
* |
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* @param g The Graphics object to paint with. |
* @param g The Graphics object to paint with. |
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* @param x The x coordinate to paint at. |
* @param x The x coordinate to paint at. |
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public void paintTriangle(Graphics g, int x, int y, int size, int direction, |
public void paintTriangle(Graphics g, int x, int y, int size, int direction, |
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boolean isEnabled) |
boolean isEnabled) |
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{ |
{ |
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Polygon arrow = getArrow(direction, size); |
Polygon arrow = null; |
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arrowIcon arrowI = new arrowIcon(arrow); |
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arrowI.setSize(size); |
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Color arrowColor; |
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if (isEnabled()) |
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arrowColor = darkShadow; |
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else |
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arrowColor = shadow; |
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arrowI.paintIconImpl(g, x, y, arrowColor); |
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} |
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/** |
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* This is a private helper that creates polygons for a given size |
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* and direction. |
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* |
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* @param direction The direction of the arrow. |
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* @param size The size of the arrow. |
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* |
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* @return A new arrow polygon. |
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*/ |
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private Polygon getArrow(int direction, int size) |
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{ |
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Polygon arrow; |
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double dsize = (double) size; |
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int one = (int) (dsize * 1 / 10); |
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int two = (int) (dsize * 2 / 10); |
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int five = (int) (dsize * 5 / 10); |
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int eight = (int) (dsize * 8 / 10); |
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switch (direction) |
switch (direction) |
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{ |
{ |
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case NORTH: |
case NORTH: |
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arrow = new Polygon(new int[] { eight, five, one }, |
arrow = upIcon; |
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new int[] { eight, one, eight }, 3); |
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break; |
break; |
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case SOUTH: |
case SOUTH: |
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arrow = new Polygon(new int[] { eight, five, two }, |
arrow = downIcon; |
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new int[] { two, eight, two }, 3); |
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break; |
break; |
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case EAST: |
case EAST: |
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case RIGHT: |
case RIGHT: |
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arrow = new Polygon(new int[] { two, eight, two }, |
arrow = rightIcon; |
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new int[] { two, five, eight }, 3); |
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break; |
break; |
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case WEST: |
case WEST: |
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case LEFT: |
case LEFT: |
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arrow = new Polygon(new int[] { eight, two, eight }, |
arrow = leftIcon; |
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new int[] { two, five, eight }, 3); |
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break; |
break; |
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default: |
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throw new IllegalArgumentException("Invalid direction given."); |
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} |
} |
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return arrow; |
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int[] xPoints = arrow.xpoints; |
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int[] yPoints = arrow.ypoints; |
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int x1; |
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int y1; |
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int x2; |
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int y2; |
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x1 = y1 = x2 = y2 = 0; |
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if (size != defaultSize) |
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{ |
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float scale = size * 1f / defaultSize; |
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for (int i = 0; i < 3; i++) |
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{ |
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xPoints[i] *= scale; |
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yPoints[i] *= scale; |
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} |
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} |
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g.translate(x, y); |
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switch (direction) |
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{ |
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case NORTH: |
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x1 = xPoints[0] + 2; |
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y1 = yPoints[0]; |
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y2 = y1; |
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x2 = xPoints[2] - 1; |
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break; |
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case SOUTH: |
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x1 = xPoints[1]; |
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y1 = yPoints[1] + 1; |
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x2 = xPoints[2] - 1; |
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y2 = yPoints[2]; |
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break; |
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case LEFT: |
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case WEST: |
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x1 = xPoints[0] + 1; |
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y1 = yPoints[0] + 1; |
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x2 = x1; |
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y2 = yPoints[2] + 1; |
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break; |
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case RIGHT: |
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case EAST: |
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x1 = xPoints[2]; |
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y1 = yPoints[2] + 1; |
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x2 = xPoints[1] - 1; |
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y2 = yPoints[1] + 1; |
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break; |
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} |
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Color saved = g.getColor(); |
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if (isEnabled) |
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{ |
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g.setColor(Color.DARK_GRAY); |
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if (arrow != null) |
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g.fillPolygon(xPoints, yPoints, 3); |
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} |
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else |
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{ |
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g.setColor(Color.GRAY); |
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g.fillPolygon(xPoints, yPoints, 3); |
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g.setColor(Color.WHITE); |
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g.drawLine(x1, y1, x2, y2); |
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} |
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g.setColor(saved); |
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g.translate(-x, -y); |
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} |
} |
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} |
} |