/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* This is an implementation of a GraphicsEnvironment object for the
* default local GraphicsEnvironment used by the Java Runtime Environment
* for Windows.
*
* @see GraphicsDevice
* @see GraphicsConfiguration
*/
public class Win32GraphicsEnvironment
extends SunGraphicsEnvironment
{
static {
// Ensure awt is loaded already. Also, this forces static init
// of WToolkit and Toolkit, which we depend upon
// setup flags before initializing native layer
// Install correct surface manager factory.
}
/**
* Initializes native components of the graphics environment. This
* includes everything from the native GraphicsDevice elements to
* the DirectX rendering layer.
*/
private static native void initDisplay();
public static void initDisplayWrapper() {
if (!displayInitialized) {
displayInitialized = true;
initDisplay();
}
}
public Win32GraphicsEnvironment() {
}
protected native int getNumScreens();
protected native int getDefaultScreen();
return getScreenDevices()[getDefaultScreen()];
}
/**
* Returns the number of pixels per logical inch along the screen width.
* In a system with multiple display monitors, this value is the same for
* all monitors.
* @returns number of pixels per logical inch in X direction
*/
public native int getXResolution();
/**
* Returns the number of pixels per logical inch along the screen height.
* In a system with multiple display monitors, this value is the same for
* all monitors.
* @returns number of pixels per logical inch in Y direction
*/
public native int getYResolution();
/*
* ----DISPLAY CHANGE SUPPORT----
*/
// list of invalidated graphics devices (those which were removed)
/*
* From DisplayChangeListener interface.
* Called from WToolkit and executed on the event thread when the
* display settings are changed.
*/
public void displayChanged() {
// getNumScreens() will return the correct current number of screens
// go through the list of current devices and determine if they
// could be reused, or will have to be replaced
if (oldScreens != null) {
if (!(screens[i] instanceof Win32GraphicsDevice)) {
// REMIND: can we ever have anything other than Win32GD?
assert (false) : oldScreens[i];
continue;
}
// devices may be invalidated from the native code when the
// display change)
if (oldDevices == null) {
}
} else if (i < newDevices.length) {
// reuse the device
newDevices[i] = gd;
}
}
oldScreens = null;
}
// create the new devices (those that weren't reused)
if (newDevices[i] == null) {
newDevices[i] = makeScreenDevice(i);
}
}
// install the new array of devices
// Note: no synchronization here, it doesn't matter if a thread gets
// a new or an old array this time around
if (gd instanceof DisplayChangedListener) {
}
}
// re-invalidate all old devices. It's needed because those in the list
// may become "invalid" again - if the current default device is removed,
// for example. Also, they need to be notified about display
// changes as well.
if (oldDevices != null) {
int defScreen = getDefaultScreen();
{
gd.displayChanged();
} else {
// no more references to this device, remove it
}
}
}
// Reset the static GC for the (possibly new) default screen
// notify SunDisplayChanger list (e.g. VolatileSurfaceManagers and
// CachingSurfaceManagers) about the display change event
// note: do not call super.displayChanged, we've already done everything
}
/*
* ----END DISPLAY CHANGE SUPPORT----
*/
if (WindowsFlags.isD3DEnabled()) {
}
}
return device;
}
public boolean isDisplayLocal() {
return true;
}
if (gd instanceof D3DGraphicsDevice) {
}
}
return false;
}
private static volatile boolean isDWMCompositionEnabled;
/**
* Returns true if dwm composition is currently enabled, false otherwise.
*
* @return true if dwm composition is enabled, false otherwise
*/
public static boolean isDWMCompositionEnabled() {
return isDWMCompositionEnabled;
}
/**
* Called from the native code when DWM composition state changed.
* May be called multiple times during the lifetime of the application.
* REMIND: we may want to create a listener mechanism for this.
*
* Note: called on the Toolkit thread, no user code or locks are allowed.
*
* @param enabled indicates the state of dwm composition
*/
}
/**
* Used to find out if the OS is Windows Vista or later.
*
* @return {@code true} if the OS is Vista or later, {@code false} otherwise
*/
public static native boolean isVistaOS();
}