@Override
public Renderer createRenderer(Reader reader, int width, int height, PixelFormat pixelFormat) {
renderer = new RendererImpl(reader, width, height, pixelFormat);
synchronized (renderer) {
cursor = renderer.getCursor();
}
init(renderer.getWidth(), renderer.getHeight());
return renderer;
}
/**
* @see
* org.locationtech.udig.project.internal.render.impl.RendererImpl#setContext(org.locationtech.udig.project.render.RenderContext)
*/
@SuppressWarnings("unchecked")
public void setContext(IRenderContext newContext) {
if (context != null) {
((CompositeRenderContext) context).removeListener(contextListener);
}
if (newContext != null) {
CompositeRenderContext compositeRenderContext = (CompositeRenderContext) newContext;
compositeRenderContext.addListener(contextListener);
for (IRenderContext context : compositeRenderContext.getContexts()) {
if (findExecutor(context) == null) {
Renderer renderer = getRendererCreator(context).getRenderer((RenderContext) context);
getRenderExecutors().add(createRenderExecutor(renderer));
}
}
super.setContext(newContext);
}
}
@Override
public void paintComponent(Graphics g) {
synchronized (renderer) {
offscreenImage = renderer.getOffscreanImage();
if (offscreenImage != null) {
g.drawImage(offscreenImage, 0, 0, null);
}
}
synchronized (cursor) {
Image cursorImage = cursor.getImage();
if (showCursor
&& cursorImage != null
&& g.getClipBounds().intersects(cursor.rX, cursor.rY, cursor.width, cursor.height)) {
g.drawImage(cursorImage, cursor.rX, cursor.rY, null);
}
}
}
@Override
public void setPixelFormat(PixelFormat pixelFormat) {
if (renderer != null) {
renderer.initPixelFormat(pixelFormat);
}
}
