@Override
public void drop(DnDEvent aEvent) {
final Object object = aEvent.getAttachedObject();
if (object instanceof PackagingElementDraggingObject) {
final PackagingElementDraggingObject draggingObject = (PackagingElementDraggingObject) object;
final PackagingElementNode<?> targetNode = draggingObject.getTargetNode();
final CompositePackagingElement<?> targetElement = draggingObject.getTargetElement();
if (targetElement == null || targetNode == null || !draggingObject.checkCanDrop()) return;
if (!checkCanAdd(targetElement, targetNode)) {
return;
}
final List<PackagingElement<?>> toSelect = new ArrayList<PackagingElement<?>>();
editLayout(
new Runnable() {
@Override
public void run() {
draggingObject.beforeDrop();
final CompositePackagingElement<?> parent =
getOrCreateModifiableParent(targetElement, targetNode);
for (PackagingElement<?> element :
draggingObject.createPackagingElements(myContext)) {
toSelect.add(element);
parent.addOrFindChild(element);
}
}
});
updateAndSelect(targetNode, toSelect);
myArtifactsEditor.getSourceItemsTree().rebuildTree();
}
}
@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;
}