Ghost image for multiple selection in JTree while drag and drop.

Question

I am unable to create a Ghost image for drag and drop with in the JTree for multiple selection, i got some examples but all are for single selection ,
Idea of creating buffered image is good , but unable to create it for multiple selection , tried a lot but got weird results.... can any body give me any clue about this , if got any example that will be fantastic.
Thanks & Regards
Sandeep Mandori

Answer 1

sandeep_mandori wrote:
I am unable to create a Ghost image for drag and drop with in the JTree for multiple selection, i got some examples but all are for single selection ,
Idea of creating buffered image is good , but unable to create it for multiple selection , tried a lot but got weird results.... can any body give me any clue about this , if got any example that will be fantastic.
Thanks & Regards
Sandeep MandoriTry this:
    private TreePath[] dragPath;
    private BufferedImage[] image;
    private void createDragImage(JTree tree) {
        if (dragPath != null) {
            try {
                image = new BufferedImage[dragPath.length];
                for (int i = 0; i < dragPath.length; i++) {
                    Rectangle pathBounds = tree.getPathBounds(dragPath);
TreeCellRenderer r = tree.getCellRenderer();
DefaultTreeModel m = (DefaultTreeModel)tree.getModel();
boolean nIsLeaf = m.isLeaf(dragPath[i].getLastPathComponent());
MutableTreeNode draggedNode = (MutableTreeNode) dragPath[i].getLastPathComponent();
JComponent lbl = (JComponent)r.getTreeCellRendererComponent(tree, draggedNode, false ,
tree.isExpanded(dragPath[i]),nIsLeaf, 0,false);
lbl.setBounds(pathBounds);
BufferedImage img = new BufferedImage(lbl.getWidth(), lbl.getHeight(),
BufferedImage.TYPE_INT_ARGB_PRE);
Graphics2D graphics = img.createGraphics();
graphics.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));
lbl.setOpaque(false);
lbl.paint(graphics);
graphics.dispose();
image[i] = img;
} catch (RuntimeException re) {}