Example usage for java.awt.dnd DropTargetContext getComponent

Introduction

In this page you can find the example usage for java.awt.dnd DropTargetContext getComponent.

Prototype

public Component getComponent() 

Source Link

Document

This method returns the Component associated with this DropTargetContext .

Usage

From source file:TreeDragTest.java

private TreeNode getNodeForEvent(DropTargetDragEvent dtde) {
    Point p = dtde.getLocation();
    DropTargetContext dtc = dtde.getDropTargetContext();
    JTree tree = (JTree) dtc.getComponent();
    TreePath path = tree.getClosestPathForLocation(p.x, p.y);
    return (TreeNode) path.getLastPathComponent();
}

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From source file:TreeDragTest.java

public void drop(DropTargetDropEvent dtde) {
    Point pt = dtde.getLocation();
    DropTargetContext dtc = dtde.getDropTargetContext();
    JTree tree = (JTree) dtc.getComponent();
    TreePath parentpath = tree.getClosestPathForLocation(pt.x, pt.y);
    DefaultMutableTreeNode parent = (DefaultMutableTreeNode) parentpath.getLastPathComponent();
    if (parent.isLeaf()) {
        dtde.rejectDrop();/*  w  w  w . ja v a  2s.co m*/
        return;
    }

    try {
        Transferable tr = dtde.getTransferable();
        DataFlavor[] flavors = tr.getTransferDataFlavors();
        for (int i = 0; i < flavors.length; i++) {
            if (tr.isDataFlavorSupported(flavors[i])) {
                dtde.acceptDrop(dtde.getDropAction());
                TreePath p = (TreePath) tr.getTransferData(flavors[i]);
                DefaultMutableTreeNode node = (DefaultMutableTreeNode) p.getLastPathComponent();
                DefaultTreeModel model = (DefaultTreeModel) tree.getModel();
                model.insertNodeInto(node, parent, 0);
                dtde.dropComplete(true);
                return;
            }
        }
        dtde.rejectDrop();
    } catch (Exception e) {
        e.printStackTrace();
        dtde.rejectDrop();
    }
}

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