/**
* Render this offscreen canvas to the specified graphics.
*
* @param graphics graphics to render this offscreen canvas to, must not be null
*/
public void render(final Graphics2D graphics) {
if (graphics == null) {
throw new IllegalArgumentException("graphics must not be null");
}
final PPaintContext paintContext = new PPaintContext(graphics);
paintContext.setRenderQuality(renderQuality);
camera.fullPaint(paintContext);
}
/**
* Paints the region specified of the canvas onto the given Graphics Context.
*
* @param gc graphics onto within painting should occur
* @param x left of the dirty region
* @param y top of the dirty region
* @param w width of the dirty region
* @param h height of the dirty region
*/
public void paintComponent(final GC gc, final int x, final int y, final int w, final int h) {
PDebug.startProcessingOutput();
GC imageGC = null;
Graphics2D g2 = null;
if (doubleBuffered) {
imageGC = new GC(backBuffer);
g2 = new SWTGraphics2D(imageGC, getDisplay());
} else {
g2 = new SWTGraphics2D(gc, getDisplay());
}
g2.setColor(Color.white);
g2.setBackground(Color.white);
final Rectangle rect = getBounds();
g2.fillRect(0, 0, rect.width, rect.height);
// This fixes a problem with standard debugging of region management in
// SWT
if (PDebug.debugRegionManagement) {
final Rectangle r = gc.getClipping();
final Rectangle2D r2 = new Rectangle2D.Double(r.x, r.y, r.width, r.height);
g2.setBackground(PDebug.getDebugPaintColor());
g2.fill(r2);
}
// create new paint context and set render quality
final PPaintContext paintContext = new PPaintContext(g2);
if (getInteracting() || getAnimating()) {
if (interactingRenderQuality > animatingRenderQuality) {
paintContext.setRenderQuality(interactingRenderQuality);
} else {
paintContext.setRenderQuality(animatingRenderQuality);
}
} else {
paintContext.setRenderQuality(defaultRenderQuality);
}
// paint Piccolo2D
camera.fullPaint(paintContext);
// if switched state from animating to not animating invalidate
// the entire screen so that it will be drawn with the default instead
// of animating render quality.
if (animatingOnLastPaint && !getAnimating()) {
repaint();
}
animatingOnLastPaint = getAnimating();
final boolean region = PDebug.debugRegionManagement;
PDebug.debugRegionManagement = false;
PDebug.endProcessingOutput(g2);
PDebug.debugRegionManagement = region;
if (doubleBuffered) {
gc.drawImage(backBuffer, 0, 0);
// Dispose of the allocated image gc
imageGC.dispose();
}
}