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// $Id: DecoratedIcon.java,v 1.1 2004/11/03 18:30:04 bobtarling Exp $
/*
* DecoratedIcon.java
*
* Created on 25 February 2003, 20:47
*/
package org.tigris.swidgets;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import javax.swing.ImageIcon;
import javax.swing.UIManager;
/**
* The base class for adding simple decorations to existing icons.
* This should be extended for each decoration style.
* @author Bob Tarling
*/
public abstract class DecoratedIcon extends ImageIcon {
/**
* If the icon is for hoovering: <code>ROLLOVER</code>
*/
public static final int ROLLOVER = 0;
/**
* If the icon is the normally shown one: <code>STANDARD</code>
*/
public static final int STANDARD = 1;
/**
* This is the sprite buffer for the arrow image of the left button.
*/
private int[][] imageBuffer;
private int popupIconWidth = 11;
private int popupIconHeight = 16;
private int popupIconOffset = 5;
private ImageIcon imageIcon;
/** Construct a decorated icon made up of the given icon and decorated with
* the icon defined in the descendant class.
* @param theImageIcon The icon to decorate
*/
DecoratedIcon(ImageIcon theImageIcon) {
imageIcon = theImageIcon;
}
/**
* Initialise the icon.
* @param buffer the buffer containing the icon definition (pixels)
*/
protected void init(int[][] buffer) {
imageBuffer = buffer;
popupIconWidth = imageBuffer[0].length;
popupIconHeight = imageBuffer.length;
BufferedImage mergedImage =
new BufferedImage(imageIcon.getIconWidth()
+ popupIconOffset + popupIconWidth,
imageIcon.getIconHeight(),
BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = mergedImage.createGraphics();
g2.drawImage(imageIcon.getImage(), null, null);
setImage(mergedImage);
}
/** Paints the icon. The top-left corner of the icon is drawn at
* the point (x, y) in the coordinate space of the graphics
* context g. If this icon has no image observer, this method uses
* the c component as the observer.
*
* @param c the component to be used as the observer if this icon
* has no image observer
* @param g the graphics context
* @param x the X coordinate of the icon's top-left corner
* @param y the Y coordinate of the icon's top-left corner
*/
public void paintIcon(Component c, Graphics g, int x, int y) {
super.paintIcon(c, g, x, y);
int xOffset = x + imageIcon.getIconWidth() + popupIconOffset;
// Initialize the color array
Color[] colors = {
c.getBackground(),
UIManager.getColor("controlDkShadow"),
UIManager.getColor("infoText"),
UIManager.getColor("controlHighlight")};
for (int i = 0; i < popupIconWidth; i++) {
for (int j = 0; j < popupIconHeight; j++) {
if (imageBuffer[j][i] != 0) {
g.setColor(colors[imageBuffer[j][i]]);
g.drawLine(xOffset + i, y + j, xOffset + i, y + j);
}
}
}
}
}
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