private static void setDisplayModeAndFullscreenInternal(boolean fullscreen, DisplayMode mode)
throws LWJGLException {
synchronized (GlobalLock.lock) {
if (mode == null) throw new NullPointerException("mode must be non-null");
DisplayMode old_mode = current_mode;
current_mode = mode;
boolean was_fullscreen = isFullscreen();
Display.fullscreen = fullscreen;
if (was_fullscreen != isFullscreen() || !mode.equals(old_mode)) {
if (!isCreated()) return;
destroyWindow();
try {
if (isFullscreen()) {
switchDisplayMode();
} else {
display_impl.resetDisplayMode();
}
createWindow();
makeCurrentAndSetSwapInterval();
} catch (LWJGLException e) {
drawable.destroy();
display_impl.resetDisplayMode();
throw e;
}
}
}
}
/**
* Set the current display mode. If no OpenGL context has been created, the given mode will apply
* to the context when create() is called, and no immediate mode switching will happen. If there
* is a context already, it will be resized according to the given mode. If the context is also a
* fullscreen context, the mode will also be switched immediately. The native cursor position is
* also reset.
*
* @param mode The new display mode to set
* @throws LWJGLException if the display mode could not be set
*/
public static void setDisplayMode(DisplayMode mode) throws LWJGLException {
synchronized (GlobalLock.lock) {
if (mode == null) throw new NullPointerException("mode must be non-null");
boolean was_fullscreen = isFullscreen();
current_mode = mode;
if (isCreated()) {
destroyWindow();
// If mode is not fullscreen capable, make sure we are in windowed mode
try {
if (was_fullscreen && !isFullscreen()) display_impl.resetDisplayMode();
else if (isFullscreen()) switchDisplayMode();
createWindow();
makeCurrentAndSetSwapInterval();
} catch (LWJGLException e) {
drawable.destroy();
display_impl.resetDisplayMode();
throw e;
}
}
}
}
/**
* Set the parent of the Display. If parent is null, the Display will appear as a top level
* window. If parent is not null, the Display is made a child of the parent. A parent's
* isDisplayable() must be true when setParent() is called and remain true until setParent() is
* called again with null or a different parent. This generally means that the parent component
* must remain added to it's parent container.
*
* <p>It is not advisable to call this method from an AWT thread, since the context will be made
* current on the thread and it is difficult to predict which AWT thread will process any given
* AWT event.
*
* <p>While the Display is in fullscreen mode, the current parent will be ignored. Additionally,
* when a non null parent is specified, the Dispaly will inherit the size of the parent,
* disregarding the currently set display mode.
*
* <p>
*/
public static void setParent(Canvas parent) throws LWJGLException {
synchronized (GlobalLock.lock) {
if (Display.parent != parent) {
Display.parent = parent;
if (!isCreated()) return;
destroyWindow();
try {
if (isFullscreen()) {
switchDisplayMode();
} else {
display_impl.resetDisplayMode();
}
createWindow();
makeCurrentAndSetSwapInterval();
} catch (LWJGLException e) {
drawable.destroy();
display_impl.resetDisplayMode();
throw e;
}
}
}
}
/**
* Destroy the Display. After this call, there will be no current GL rendering context, regardless
* of whether the Display was the current rendering context.
*/
public static void destroy() {
if (isCreated()) {
drawable.destroy();
}
}