private void createBuffer() {
if (buffer == null) {
WritableRaster rst;
rst =
Raster.createWritableRaster(
GtkVolatileImage.createGdkSampleModel(
component.awtComponent.getWidth(), component.awtComponent.getHeight()),
new Point(0, 0));
buffer =
new BufferedImage(
GtkVolatileImage.gdkColorModel,
rst,
GtkVolatileImage.gdkColorModel.isAlphaPremultiplied(),
new Hashtable());
} else {
Graphics2D g2d = ((Graphics2D) buffer.getGraphics());
g2d.setBackground(new Color(0, 0, 0, 0));
g2d.clearRect(0, 0, buffer.getWidth(), buffer.getHeight());
}
if (componentBuffer == null) {
WritableRaster rst;
rst =
Raster.createWritableRaster(
GtkVolatileImage.createGdkSampleModel(
component.awtComponent.getWidth(), component.awtComponent.getHeight()),
new Point(0, 0));
componentBuffer =
new BufferedImage(
GtkVolatileImage.gdkColorModel,
rst,
GtkVolatileImage.gdkColorModel.isAlphaPremultiplied(),
new Hashtable());
}
}
public boolean drawImage(Image img, int x, int y, int width, int height, ImageObserver observer) {
// If it is a GtkVolatileImage with an "easy" transform then
// draw directly. Always pass a BufferedImage to super to avoid
// deadlock (see Note in CairoGraphics.drawImage()).
if (img instanceof GtkVolatileImage && (clip == null || clip instanceof Rectangle2D)) {
GtkVolatileImage vimg = (GtkVolatileImage) img;
int type = transform.getType();
if ((type == AffineTransform.TYPE_IDENTITY || type == AffineTransform.TYPE_TRANSLATION)
&& (clip == null || clip instanceof Rectangle2D)) {
Rectangle2D r = (Rectangle2D) clip;
if (r == null) r = getRealBounds();
x += transform.getTranslateX();
y += transform.getTranslateY();
drawVolatile(
component,
vimg.nativePointer,
x,
y,
width,
height,
(int) (r.getX() + transform.getTranslateX()),
(int) (r.getY() + transform.getTranslateY()),
(int) r.getWidth(),
(int) r.getHeight());
return true;
} else return super.drawImage(vimg.getSnapshot(), x, y, width, height, observer);
}
BufferedImage bimg;
img = AsyncImage.realImage(img, observer);
if (img instanceof BufferedImage) bimg = (BufferedImage) img;
else {
ImageProducer source = img.getSource();
if (source == null) return false;
bimg = (BufferedImage) Toolkit.getDefaultToolkit().createImage(source);
}
return super.drawImage(bimg, x, y, width, height, observer);
}
