public void paint(Graphics g) {
if (histogram != null) {
if (os == null) {
os = createImage(WIDTH, HEIGHT);
osg = os.getGraphics();
osg.setColor(Color.white);
osg.fillRect(0, 0, WIDTH, HEIGHT);
osg.setColor(Color.gray);
for (int i = 0; i < WIDTH; i++) {
if (hColors != null) osg.setColor(hColors[i]);
osg.drawLine(i, HEIGHT, i, HEIGHT - ((int) (HEIGHT * histogram[i]) / hmax) - 4);
}
osg.dispose();
}
g.drawImage(os, 0, 0, this);
} else {
g.setColor(Color.white);
g.fillRect(0, 0, WIDTH, HEIGHT);
}
g.setColor(Color.black);
g.drawLine(0, HEIGHT - 4, 256, HEIGHT - 4);
g.drawRect(0, 0, WIDTH, HEIGHT);
g.drawRect((int) minHue, 1, (int) (maxHue - minHue), HEIGHT - 5);
}
