NineWayImage.java

package org.droiddraw.gui;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;

public class NineWayImage {
	BufferedImage[] images;
	int dx1, dy1, dx2, dy2, wx, wy;

	public NineWayImage(Image img, int dx, int dy) {
		this(img, dx, dy, dx, dy);
	}
	
	public NineWayImage(Image img, int dx1, int dy1, int dx2, int dy2) {
		this.images = new BufferedImage[9];
		this.dx1 = dx1;
		this.dy1 = dy1;
		this.dx2 = dx2;
		this.dy2 = dy2;
		this.wx = img.getWidth(null)-(dx1+dx2);
		this.wy = img.getHeight(null)-(dy1+dy2);

		BufferedImage bi = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_4BYTE_ABGR);
		bi.getGraphics().drawImage(img, 0, 0, null);
		
		int w = bi.getWidth();
		int h = bi.getHeight();
		if (dx1 > 0 && dy1 > 0) images[0] = bi.getSubimage(0, 0, dx1, dy1);
		if (dy1 > 0)			images[1] = bi.getSubimage(dx1, 0, wx, dy1);
		if (dx2 > 0 && dy1 > 0) images[2] = bi.getSubimage(w-dx2, 0, dx2, dy1);
		
		if (dx1 > 0) 			images[3] = bi.getSubimage(0, dy1, dx1, wy);
								images[4] = bi.getSubimage(dx1, dy1,wx, wy);
		if (dx2 > 0)			images[5] = bi.getSubimage(w-dx2,dy1,dx2,wy);
		
		if (dx1 > 0 && dy2 > 0) images[6] = bi.getSubimage(0,h-dy2,dx1,dy2);
		if (dy2 > 0)			images[7] = bi.getSubimage(dx1,h-dy2,wx,dy2);
		if (dx2 > 0 && dy2 > 0) images[8] = bi.getSubimage(w-dx2,h-dy2, dx2, dy2);
	}
	
	public void paint(Graphics g, int x, int y, int sx, int sy) {
		if (images[0] != null) g.drawImage(images[0], x, y, null);
		if (images[1] != null) g.drawImage(images[1], x+dx1, y, sx-(dx1+dx2), dy1, null);
		if (images[2] != null) g.drawImage(images[2], x+sx-dx2, y, null);
		
		if (images[3] != null) g.drawImage(images[3], x, y+dy1,dx1,sy-(dy1+dy2), null);
		if (images[4] != null) g.drawImage(images[4], x+dx1, y+dy1, sx-(dx1+dx2), sy-(dy1+dy2), null);
		if (images[5] != null) g.drawImage(images[5], x+sx-dx2, y+dy1, dx2, sy-(dy1+dy2), null);
		
		if (images[6] != null) g.drawImage(images[6], x, y+sy-dy2, null);
		if (images[7] != null) g.drawImage(images[7], x+dx1, y+sy-dy2, sx-(dx1+dx2), dy2, null);
		if (images[8] != null) g.drawImage(images[8], x+sx-dx2, y+sy-dy2, null);
	}
}