/**
* 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 Point getPreferredLocation() {
if (!IJ.isJava14()) return new Point(0, 0);
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
Rectangle maxBounds = ge.getMaximumWindowBounds();
int ijX = Prefs.getInt(IJ_X, -99);
int ijY = Prefs.getInt(IJ_Y, -99);
if (ijX >= 0 && ijY > 0 && ijX < (maxBounds.x + maxBounds.width - 75))
return new Point(ijX, ijY);
Dimension tbsize = toolbar.getPreferredSize();
int ijWidth = tbsize.width + 10;
double percent = maxBounds.width > 832 ? 0.8 : 0.9;
ijX = (int) (percent * (maxBounds.width - ijWidth));
if (ijX < 10) ijX = 10;
return new Point(ijX, maxBounds.y);
}
protected JComboBox createFontChoice() {
CommandChoice choice = new CommandChoice();
String fonts[] =
GraphicsEnvironment.getLocalGraphicsEnvironment().getAvailableFontFamilyNames();
for (int i = 0; i < fonts.length; i++) {
choice.addItem(
new ChangeAttributeCommand(fonts[i], FigureAttributeConstant.FONT_NAME, fonts[i], this));
}
return choice;
}
