@Override protected void paintComponent(Graphics graphics) { // Fill in the background: Graphics2D g = (Graphics2D) graphics; Shape clip = g.getClip(); g.setColor(LightZoneSkin.Colors.NeutralGray); g.fill(clip); if (preview == null) { PlanarImage image = currentImage.get(); if (image == null) { engine.update(null, false); } else if (visibleRect != null && getHeight() > 1 && getWidth() > 1) { preview = cropScaleGrayscale(visibleRect, image); } } if (preview != null) { int dx, dy; AffineTransform transform = new AffineTransform(); if (getSize().width > preview.getWidth()) dx = (getSize().width - preview.getWidth()) / 2; else dx = 0; if (getSize().height > preview.getHeight()) dy = (getSize().height - preview.getHeight()) / 2; else dy = 0; transform.setToTranslation(dx, dy); try { g.drawRenderedImage(preview, transform); } catch (Exception e) { e.printStackTrace(); } } }
@Override public void addNotify() { // This method gets called when this Preview is added. engine.update(null, false); super.addNotify(); }