/**
* Creates an undecorated transparent frame.
*
* @param gc the <tt>GraphicsConfiguration</tt> to use
*/
private TransparentFrame(GraphicsConfiguration gc) {
super(gc);
setUndecorated(true);
AWTUtilitiesWrapper.setWindowOpaque(this, false);
AWTUtilitiesWrapper.setWindowOpacity(this, 1f);
}
/**
* Creates a transparent undecorated frame. If the transparency is not supported creates a normal
* undecorated frame.
*
* @return the created frame
*/
public static TransparentFrame createTransparentFrame() {
isTranslucencySupported =
AWTUtilitiesWrapper.isTranslucencySupported(AWTUtilitiesWrapper.PERPIXEL_TRANSLUCENT);
GraphicsConfiguration translucencyCapableGC =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice()
.getDefaultConfiguration();
if (!AWTUtilitiesWrapper.isTranslucencyCapable(translucencyCapableGC)) {
translucencyCapableGC = null;
GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice[] devices = env.getScreenDevices();
for (int i = 0; i < devices.length && translucencyCapableGC == null; i++) {
GraphicsConfiguration[] configs = devices[i].getConfigurations();
for (int j = 0; j < configs.length && translucencyCapableGC == null; j++) {
if (AWTUtilitiesWrapper.isTranslucencyCapable(configs[j])) {
translucencyCapableGC = configs[j];
}
}
}
if (translucencyCapableGC == null) {
isTranslucencySupported = false;
}
}
if (isTranslucencySupported) return new TransparentFrame(translucencyCapableGC);
return new TransparentFrame();
}
private static boolean calcAlphaModelSupported() {
if (AWTUtilitiesWrapper.isTranslucencyAPISupported()) {
return AWTUtilitiesWrapper.isTranslucencySupported(AWTUtilitiesWrapper.TRANSLUCENT);
}
try {
return WindowUtils.isWindowAlphaSupported();
} catch (Throwable e) {
return false;
}
}
public void setWindowMask(final Window window, @Nullable final Shape mask) {
try {
if (AWTUtilitiesWrapper.isTranslucencySupported(AWTUtilitiesWrapper.PERPIXEL_TRANSPARENT)) {
AWTUtilitiesWrapper.setWindowShape(window, mask);
} else {
WindowUtils.setWindowMask(window, mask);
}
} catch (Throwable e) {
LOG.debug(e);
}
}
private static void setAlphaMode(Window window, float ratio) {
try {
if (SystemInfo.isMacOSLeopard) {
if (window instanceof JWindow) {
((JWindow) window).getRootPane().putClientProperty("Window.alpha", 1.0f - ratio);
} else if (window instanceof JDialog) {
((JDialog) window).getRootPane().putClientProperty("Window.alpha", 1.0f - ratio);
} else if (window instanceof JFrame) {
((JFrame) window).getRootPane().putClientProperty("Window.alpha", 1.0f - ratio);
}
} else if (AWTUtilitiesWrapper.isTranslucencySupported(AWTUtilitiesWrapper.TRANSLUCENT)) {
AWTUtilitiesWrapper.setWindowOpacity(window, 1.0f - ratio);
} else {
WindowUtils.setWindowAlpha(window, 1.0f - ratio);
}
} catch (Throwable e) {
LOG.debug(e);
}
}