// WComponentPeer overrides
@SuppressWarnings("unchecked")
protected void disposeImpl() {
AppContext appContext = SunToolkit.targetToAppContext(target);
synchronized (appContext) {
List<WWindowPeer> l = (List<WWindowPeer>) appContext.get(ACTIVE_WINDOWS_KEY);
if (l != null) {
l.remove(this);
}
}
// Remove ourself from the Map of DisplayChangeListeners
GraphicsConfiguration gc = getGraphicsConfiguration();
((Win32GraphicsDevice) gc.getDevice()).removeDisplayChangedListener(this);
synchronized (getStateLock()) {
TranslucentWindowPainter currentPainter = painter;
if (currentPainter != null) {
currentPainter.flush();
// don't set the current one to null here; reduces the chances of
// MT issues (like NPEs)
}
}
super.disposeImpl();
}
public void setOpaque(boolean isOpaque) {
synchronized (getStateLock()) {
if (this.isOpaque == isOpaque) {
return;
}
}
Window target = (Window) getTarget();
if (!isOpaque) {
SunToolkit sunToolkit = (SunToolkit) target.getToolkit();
if (!sunToolkit.isWindowTranslucencySupported()
|| !sunToolkit.isTranslucencyCapable(target.getGraphicsConfiguration())) {
return;
}
}
boolean isVistaOS = Win32GraphicsEnvironment.isVistaOS();
if (this.isOpaque != isOpaque && !isVistaOS) {
// non-Vista OS: only replace the surface data if the opacity
// status changed (see WComponentPeer.isAccelCapable() for more)
replaceSurfaceDataRecursively(target);
}
synchronized (getStateLock()) {
this.isOpaque = isOpaque;
setOpaqueImpl(isOpaque);
if (isOpaque) {
TranslucentWindowPainter currentPainter = painter;
if (currentPainter != null) {
currentPainter.flush();
painter = null;
}
} else {
painter = TranslucentWindowPainter.createInstance(this);
}
}
if (isVistaOS) {
// On Vista: setting the window non-opaque makes the window look
// rectangular, though still catching the mouse clicks within
// its shape only. To restore the correct visual appearance
// of the window (i.e. w/ the correct shape) we have to reset
// the shape.
Shape shape = target.getShape();
if (shape != null) {
target.setShape(shape);
}
}
if (target.isVisible()) {
updateWindow(true);
}
}
private void updateWindow(boolean repaint) {
Window w = (Window) target;
synchronized (getStateLock()) {
if (isOpaque || !w.isVisible() || (w.getWidth() <= 0) || (w.getHeight() <= 0)) {
return;
}
TranslucentWindowPainter currentPainter = painter;
if (currentPainter != null) {
currentPainter.updateWindow(repaint);
} else if (log.isLoggable(PlatformLogger.Level.FINER)) {
log.finer("Translucent window painter is null in updateWindow");
}
}
}
public final Graphics getTranslucentGraphics() {
synchronized (getStateLock()) {
return isOpaque ? null : painter.getBackBuffer(false).getGraphics();
}
}