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check if env is headless before calling getDefaultScreenDevice

master
melvin 2014-09-02 10:44:40 +08:00
parent 917ddd3ec7
commit 86a5616196
1 changed files with 13 additions and 4 deletions
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17
src/magic/ui/utility/GraphicsUtilities.java
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@ -61,9 +61,12 @@ import magic.utility.MagicFileSystem.DataPath;
*/
final public class GraphicsUtilities {
private final static GraphicsConfiguration GC =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice().getDefaultConfiguration();
private final static GraphicsConfiguration GC = (java.awt.GraphicsEnvironment.isHeadless() == false) ?
GraphicsEnvironment
.getLocalGraphicsEnvironment()
.getDefaultScreenDevice()
.getDefaultConfiguration() :
null;
private GraphicsUtilities() {}
@ -170,8 +173,14 @@ final public class GraphicsUtilities {
}
public static BufferedImage getCompatibleBufferedImage(final int width, final int height, final int transparency) {
return GC.createCompatibleImage(width, height, transparency);
if (GC != null) {
return GC.createCompatibleImage(width, height, transparency);
} else {
final int type = (transparency == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB;
return new BufferedImage(width, height, type);
}
}
public static BufferedImage getCompatibleBufferedImage(final int width, final int height) {
return getCompatibleBufferedImage(width, height, Transparency.OPAQUE);
}