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draw rect problem?

nick cheng
Greenhorn

Joined: Oct 31, 2004
Posts: 11
public void paint(Graphics g) {
if (!buffered){
buffer = createImage(50, 50);
bufferG=buffer.getGraphics();

buffered=true;
}
bufferG.setColor(Color.RED);

bufferG.drawRect(0, 0, (int) imageSize.getWidth(),
(int) imageSize.getHeight());
g.drawImage(buffer,100,100,this);
}

in this Applet file ,i set the background colour is "black" in void init()
,then i set some images one the surface,and last i use double buffer draw a rect image,but when i draw the image,the rect become ,a black solid rect ,how to make it become tranparent?
Nigel Browne
Ranch Hand

Joined: May 15, 2001
Posts: 673
You should be using the Graphics2D class and the AlphaComposite class. See this Tutorial
Ernest Friedman-Hill
author and iconoclast
Marshal

Joined: Jul 08, 2003
Posts: 24168
    
  30

Don't post the same question to more than one forum -- it just wastes people's time and makes them less likely to help you. I'm closing this and leaving the one in the correct forum -- the Swing/AWT copy -- open. I've taken the liberty of deleting the other copies for you.


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