@SuppressWarnings("unchecked")
@Override
protected void paintFigure(final Graphics graphics) {
if (gc == null || gc.isDisposed()) {
return;
}
Rectangle clip = graphics.getClip(new Rectangle());
graphics.setClip(getBounds());
ArrayList<IFigure> children = new ArrayList<IFigure>(getChildren());
Collections.sort(
children,
new Comparator<IFigure>() {
public int compare(final IFigure o1, final IFigure o2) {
Integer z1 = ObjectFigure.Z0;
Integer z2 = ObjectFigure.Z0;
if (o1 instanceof ObjectFigure) {
z1 = ((ObjectFigure) o1).getZ();
}
if (o2 instanceof ObjectFigure) {
z2 = ((ObjectFigure) o2).getZ();
}
return z1.compareTo(z2);
}
});
for (final Object object : children) {
((IFigure) object).paint(graphics);
}
graphics.setClip(clip);
}
/**
* Export an image to SVG file format.
*
* @param file
* @param rootFigure
* @throws IOException
*/
public void exportToSVG(File file, IFigure rootFigure) throws IOException {
Rectangle bounds = rootFigure.getBounds();
GraphicsSVG graphics =
GraphicsSVG.getInstance(bounds.getTranslated(bounds.getLocation().negate()));
graphics.translate(bounds.getLocation().negate());
rootFigure.paint(graphics);
// graphics.getSVGGraphics2D().stream(new BufferedWriter(new OutputStreamWriter(new
// FileOutputStream(file))));
// FIXME: SVG export is not working any more due to API restrictions of GMF
}
/**
* Returns the bytes of an encoded image for the specified IFigure in the specified format.
*
* @param figure the Figure to create an image for.
* @param format one of SWT.IMAGE_BMP, SWT.IMAGE_BMP_RLE, SWT.IMAGE_GIF SWT.IMAGE_ICO,
* SWT.IMAGE_JPEG, or SWT.IMAGE_PNG
* @return the bytes of an encoded image for the specified Figure
*/
private byte[] createImage(final IFigure figure, final int format) {
final Device device = viewer.getControl().getDisplay();
final Rectangle r = figure.getBounds();
final ByteArrayOutputStream result = new ByteArrayOutputStream();
Image image = null;
GC gc = null;
Graphics g = null;
try {
image = new Image(device, r.width, r.height);
gc = new GC(image);
g = new SWTGraphics(gc);
g.translate(r.x * -1, r.y * -1);
figure.paint(g);
final ImageLoader imageLoader = new ImageLoader();
imageLoader.data = new ImageData[] {image.getImageData()};
imageLoader.save(result, format);
} catch (Exception e) {
// the image size may not exceed 16M, svg requires less space for graphs than png and jpeg
e.printStackTrace();
} finally {
if (g != null) {
g.dispose();
}
if (gc != null) {
gc.dispose();
}
if (image != null) {
image.dispose();
}
}
return result.toByteArray();
}
