/**
* Create possibly volatile scratch image for fast painting. A scratch image can become
* invalidated, when this happens any actions involving it are ignored, and it needs to be
* recreated. Use isScratchImageValid() to check this.
*/
public static Image createScratchImage(int width, int height) {
try {
Image img =
(Image)
tryMethod(
output_comp,
"createVolatileImage",
new Object[] {new Integer(width), new Integer(height)});
if (img == null) {
// no such method -> create regular image
return output_comp.createImage(width, height);
}
// if (img.validate(output_comp.getGraphicsConfiguration())
// == VolatileImage.IMAGE_INCOMPATIBLE) {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gs = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gs.getDefaultConfiguration();
Integer valid = (Integer) tryMethod(img, "validate", new Object[] {gc});
// output_comp.getGraphicsConfiguration() });
if (valid.intValue() == 2) { // I checked, IMAGE_INCOMPATIBLE=2
// Hmm, somehow it didn't work. Create regular image.
return output_comp.createImage(width, height);
}
return img;
} catch (java.security.AccessControlException e) {
// we're not allowed to do this (we're probably an applet)
return output_comp.createImage(width, height);
}
}
/** Create empty image with given alpha mode that should be efficient on this display */
public static BufferedImage createCompatibleImage(int width, int height, int transparency) {
// try {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gs = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gs.getDefaultConfiguration();
// always use bitmask transparency
BufferedImage bimage = gc.createCompatibleImage(width, height, transparency);
return bimage;
// } catch (HeadlessException e) { // this exception is not in 1.2
// The system does not have a screen
// e.printStackTrace();
// return null;
// }
}
public void setwnd() {
GraphicsDevice dev = getGraphicsConfiguration().getDevice();
if (prefs == null) return;
try {
dev.setDisplayMode(prefs);
dev.setFullScreenWindow(null);
setVisible(false);
dispose();
setUndecorated(false);
setVisible(true);
} catch (Exception e) {
throw (new RuntimeException(e));
}
prefs = null;
}
public void setfs() {
GraphicsDevice dev = getGraphicsConfiguration().getDevice();
if (prefs != null) return;
prefs = dev.getDisplayMode();
try {
setVisible(false);
dispose();
setUndecorated(true);
setVisible(true);
dev.setFullScreenWindow(this);
dev.setDisplayMode(fsmode);
pack();
} catch (Exception e) {
throw (new RuntimeException(e));
}
}
DisplayMode findmode(int w, int h) {
GraphicsDevice dev = getGraphicsConfiguration().getDevice();
if (!dev.isFullScreenSupported()) return (null);
DisplayMode b = null;
for (DisplayMode m : dev.getDisplayModes()) {
int d = m.getBitDepth();
if ((m.getWidth() == w)
&& (m.getHeight() == h)
&& ((d == 24) || (d == 32) || (d == DisplayMode.BIT_DEPTH_MULTI))) {
if ((b == null)
|| (d > b.getBitDepth())
|| ((d == b.getBitDepth()) && (m.getRefreshRate() > b.getRefreshRate()))) b = m;
}
}
return (b);
}
public GraphicsDevice getGraphicsDeviceAt(Point pos) {
GraphicsDevice device = null;
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice lstGDs[] = ge.getScreenDevices();
ArrayList<GraphicsDevice> lstDevices = new ArrayList<>(lstGDs.length);
for (GraphicsDevice gd : lstGDs) {
GraphicsConfiguration gc = gd.getDefaultConfiguration();
Rectangle screenBounds = gc.getBounds();
if (screenBounds.contains(pos)) {
lstDevices.add(gd);
}
}
if (lstDevices.size() == 1) {
device = lstDevices.get(0);
}
return device;
}
public Rectangle getScreenViewableBounds(GraphicsDevice gd) {
Rectangle bounds = new Rectangle(0, 0, 0, 0);
if (gd != null) {
GraphicsConfiguration gc = gd.getDefaultConfiguration();
bounds = gc.getBounds();
Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gc);
bounds.x += insets.left;
bounds.y += insets.top;
bounds.width -= (insets.left + insets.right);
bounds.height -= (insets.top + insets.bottom);
}
return bounds;
}
public GraphicsConfiguration getDeviceConfiguration() {
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
return (gd.getDefaultConfiguration());
}
