public static RectangleOverlay makeRectangleOverlay(
final Context context, final double x, final double y, final double w, final double h) {
final RectangleOverlay overlay = new RectangleOverlay(context);
overlay.getRegionOfInterest().setOrigin(new double[] {x, y});
overlay.getRegionOfInterest().setExtent(new double[] {w, h});
return overlay;
}
@Override
public void updateOverlay(final Figure figure, final OverlayView overlay) {
super.updateOverlay(figure, overlay);
final RectangleOverlay rOverlay = downcastOverlay(overlay.getData());
final RectangleRegionOfInterest roi = rOverlay.getRegionOfInterest();
final Rectangle2D.Double bounds = figure.getBounds();
roi.setOrigin(bounds.getMinX(), 0);
roi.setOrigin(bounds.getMinY(), 1);
roi.setExtent(bounds.getWidth(), 0);
roi.setExtent(bounds.getHeight(), 1);
}
@Override
public void updateFigure(final OverlayView overlay, final Figure f) {
super.updateFigure(overlay, f);
final RectangleOverlay rectangleOverlay = downcastOverlay(overlay.getData());
final RectangleRegionOfInterest roi = rectangleOverlay.getRegionOfInterest();
final double x0 = roi.getOrigin(0);
final double w = roi.getExtent(0);
final double y0 = roi.getOrigin(1);
final double h = roi.getExtent(1);
final Point2D.Double anch = new Point2D.Double(x0, y0);
final Point2D.Double lead = new Point2D.Double(x0 + w, y0 + h);
f.setBounds(anch, lead);
}