@Override
public boolean update(DnDEvent aEvent) {
aEvent.setDropPossible(false);
aEvent.hideHighlighter();
final Object object = aEvent.getAttachedObject();
if (object instanceof PackagingElementDraggingObject) {
final DefaultMutableTreeNode parent =
findParentCompositeElementNode(aEvent.getRelativePoint().getPoint(myTree));
if (parent != null) {
final PackagingElementDraggingObject draggingObject =
(PackagingElementDraggingObject) object;
final PackagingElementNode node = getNode(parent);
if (node != null && draggingObject.canDropInto(node)) {
final PackagingElement element = node.getFirstElement();
if (element instanceof CompositePackagingElement) {
draggingObject.setTargetNode(node);
draggingObject.setTargetElement((CompositePackagingElement<?>) element);
final Rectangle bounds = myTree.getPathBounds(TreeUtil.getPathFromRoot(parent));
aEvent.setHighlighting(
new RelativeRectangle(myTree, bounds),
DnDEvent.DropTargetHighlightingType.RECTANGLE);
aEvent.setDropPossible(true);
}
}
}
}
return false;
}
@Override
public boolean update(DnDEvent aEvent) {
aEvent.hideHighlighter();
aEvent.setDropPossible(false, "");
Object attached = aEvent.getAttachedObject();
if (!(attached instanceof ChangeListDragBean)) return false;
final ChangeListDragBean dragBean = (ChangeListDragBean) attached;
if (dragBean.getSourceComponent() != ChangesListView.this) return false;
dragBean.setTargetNode(null);
RelativePoint dropPoint = aEvent.getRelativePoint();
Point onTree = dropPoint.getPoint(ChangesListView.this);
final TreePath dropPath = getPathForLocation(onTree.x, onTree.y);
if (dropPath == null) return false;
ChangesBrowserNode dropNode = (ChangesBrowserNode) dropPath.getLastPathComponent();
while (!((ChangesBrowserNode) dropNode.getParent()).isRoot()) {
dropNode = (ChangesBrowserNode) dropNode.getParent();
}
if (!dropNode.canAcceptDrop(dragBean)) {
return false;
}
final Rectangle tableCellRect = getPathBounds(new TreePath(dropNode.getPath()));
if (fitsInBounds(tableCellRect)) {
aEvent.setHighlighting(
new RelativeRectangle(ChangesListView.this, tableCellRect),
DnDEvent.DropTargetHighlightingType.RECTANGLE);
}
aEvent.setDropPossible(true);
dragBean.setTargetNode(dropNode);
return false;
}
