public void doLayout() {
   if (view != null) {
     view.setSize(view.getPreferredSize());
     visibleRect = getVisibleRect();
     view.setLocation(visibleRect.x, visibleRect.y);
   }
   glassPane.setLocation(0, 0);
   glassPane.setSize(getWidth(), getHeight());
 }
Esempio n. 2
0
  private static Pair<Image, Point> createDragImage(
      final Tree tree, final Component c, Point dragOrigin, boolean adjustToPathUnderDragOrigin) {
    if (c instanceof JComponent) {
      ((JComponent) c).setOpaque(true);
    }

    c.setForeground(tree.getForeground());
    c.setBackground(tree.getBackground());
    c.setFont(tree.getFont());
    c.setSize(c.getPreferredSize());
    final BufferedImage image =
        new BufferedImage(c.getWidth(), c.getHeight(), BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = (Graphics2D) image.getGraphics();
    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f));
    c.paint(g2);
    g2.dispose();

    Point point = new Point(-image.getWidth(null) / 2, -image.getHeight(null) / 2);

    if (adjustToPathUnderDragOrigin) {
      TreePath path = tree.getPathForLocation(dragOrigin.x, dragOrigin.y);
      if (path != null) {
        Rectangle bounds = tree.getPathBounds(path);
        point = new Point(bounds.x - dragOrigin.x, bounds.y - dragOrigin.y);
      }
    }

    return new Pair<Image, Point>(image, point);
  }
Esempio n. 3
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 // not used
 public Component add(Component c) {
   // System.out.println("Add " + c);
   if (c instanceof AbstractButton) {
     // System.out.println("Add to button group " + c);
     c.setVisible(true);
     bg.add((AbstractButton) c);
   }
   if (c instanceof Anchorable && ((Anchorable) c).isAnchored()) {
     c.setSize(c.getPreferredSize());
   }
   return super.add(c);
 }