是否有可能不被在美国东部时间执行的Java Swing活跃的渲染？ [英] Is it possible to perform active rendering in Java Swing without being on the EDT?

问题描述

我期待到使用缓冲策略< /对的Javadoc描述的>及以下技术：

I am looking into using Buffer Strategy and the following technique described on the Javadoc:

// Main loop
while (!done) {
 // Prepare for rendering the next frame
 // ...

 // Render single frame
 do {
     // The following loop ensures that the contents of the drawing buffer
     // are consistent in case the underlying surface was recreated
     do {
         // Get a new graphics context every time through the loop
         // to make sure the strategy is validated
         Graphics graphics = strategy.getDrawGraphics();

         // Render to graphics
         // ...

         // Dispose the graphics
         graphics.dispose();

         // Repeat the rendering if the drawing buffer contents 
         // were restored
     } while (strategy.contentsRestored());

     // Display the buffer
     strategy.show();

     // Repeat the rendering if the drawing buffer was lost
 } while (strategy.contentsLost());

}

这将是巨大的，以避免 EDT 和的invokeLater 或 invokeAndWait 执行动画时。

It would be great to avoid EDT and invokeLater or invokeAndWait when performing an animation.

我的问题：

• 如果这是在Swing应用程序并不需要我们担心这会让调用显示在美国东部时间？


• 任何人都可以看到其他人在Swing应用程序使用此什么问题？

• If this is in a Swing application don't we need to worry about putting the call to show on the EDT?
• Can anyone else see any problems using this in a Swing app?

这是由该有趣的答案启发游戏编程。

This was inspired by this interesting answer to game programming.

推荐答案

在一般情况下，没有。画上比事件调度线程（EDT）导致不希望的伪像，虽然结果是可以接受的。这例如演示一些权衡。我preFER安排吸取EDT使用的javax .swing.Timer ，但 是可能的其他方法。另外，您所选择的顶级集装箱可能已经实施缓冲策略。

In general, no. Painting on a thread other than the event dispatch thread (EDT) results in undesirable artifacts, although the results may be acceptable. This example demonstrates some of the trade-offs. I prefer arranging to draw on the EDT using javax.swing.Timer, but other approaches are possible. Also, your chosen top-level Container may already implement a Buffer Strategy.

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