本文整理汇总了Java中sun.awt.SubRegionShowable.showIfNotLost方法的典型用法代码示例。如果您正苦于以下问题：Java SubRegionShowable.showIfNotLost方法的具体用法？Java SubRegionShowable.showIfNotLost怎么用？Java SubRegionShowable.showIfNotLost使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sun.awt.SubRegionShowable的用法示例。
在下文中一共展示了SubRegionShowable.showIfNotLost方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: show
import sun.awt.SubRegionShowable; //导入方法依赖的package包/类
/**
* Shows the specified region of the back buffer. This will return
* true if successful, false otherwise. This is invoked on the
* toolkit thread in response to an expose event.
*/
public boolean show(Container c, int x, int y, int w, int h) {
synchronized(this) {
if (painting) {
// Don't show from backbuffer while in the process of
// painting.
return false;
}
showing = true;
}
try {
BufferInfo info = getBufferInfo(c);
BufferStrategy bufferStrategy;
if (info != null && info.isInSync() &&
(bufferStrategy = info.getBufferStrategy(false)) != null) {
SubRegionShowable bsSubRegion =
(SubRegionShowable)bufferStrategy;
boolean paintAllOnExpose = info.getPaintAllOnExpose();
info.setPaintAllOnExpose(false);
if (bsSubRegion.showIfNotLost(x, y, (x + w), (y + h))) {
return !paintAllOnExpose;
}
// Mark the buffer as needing to be repainted. We don't
// immediately do a repaint as this method will return false
// indicating a PaintEvent should be generated which will
// trigger a complete repaint.
bufferInfo.setContentsLostDuringExpose(true);
}
}
finally {
synchronized(this) {
showing = false;
notifyAll();
}
}
return false;
}