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Double Buffering with awt

开发者 https://www.devze.com 2022-12-30 17:44 出处:网络
Is double buffering (in java) possible with awt? Currently, I\'m aware that swing should not be used with awt, so I can\'t use BufferStrategy and whatnot (I already have some code written in awt that

Is double buffering (in java) possible with awt? Currently, I'm aware that swing should not be used with awt, so I can't use BufferStrategy and whatnot (I already have some code written in awt that I don't want to rewrite in swing).

If double buffering is possible with awt, do I have to write the buffer by hand? Unlike swing, awt does开发者_运维技巧n't seem to have the same built-in double buffering capability.

If I do have to write the code by hand, is there a good tutorial to look at? Or is it just easier/advisable for a novice programmer to use swing instead?

Sorry about the multi-step question. Thanks for your time :)


This is easily answered on the web. Just search for "double buffer awt" and you'll find LOTS of examples. You can even see an old example I wrote myself in 1998 in Java 1.0 AWT. You just need to instantiate your own Graphics object and draw to an Image, then blit that image into a canvas. Here's the key bit of code in my example:

  public void paint(Graphics g) {
    if (doubleBuffer) {
      paintSky(top.gBuf);
      g.drawImage(top.buf, 0, 0, this);
    } else {
      paintSky(g);
    }
  }
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