Java The Complete Reference, Seventh Edition

Chapter 25: Images 779

return a.createImage(
new MemoryImageSource(width, height, newimgpixels, 0, width));
}

synchronized void waitForImage() {
try {
while(!imageReady) wait();
} catch (Exception e) {
System.out.println("Interrupted");
}
}

public void setProperties(java.util.Hashtable dummy) { }
public void setColorModel(ColorModel dummy) { }
public void setHints(int dummy) { }

public synchronized void imageComplete(int dummy) {
imageReady = true;
notifyAll();
}

public void setDimensions(int x, int y) {
width = x;
height = y;
imgpixels = new int[x*y];
}

public void setPixels(int x1, int y1, int w, int h,
ColorModel model, byte pixels[], int off, int scansize) {
int pix, x, y, x2, y2, sx, sy;

x2 = x1+w;
y2 = y1+h;
sy = off;
for(y=y1; y<y2; y++) {
sx = sy;
for(x=x1; x<x2; x++) {
pix = model.getRGB(pixels[sx++]);
if((pix & 0xff000000) == 0)
pix = 0x00ffffff;
imgpixels[y*width+x] = pix;
}
sy += scansize;
}
}

public void setPixels(int x1, int y1, int w, int h,
ColorModel model, int pixels[], int off, int scansize) {
int pix, x, y, x2, y2, sx, sy;

x2 = x1+w;

y2 = y1+h;

sy = off;

for(y=y1; y<y2; y++) {