| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.debugger.ui.impl; |
| |
| import com.intellij.debugger.ui.impl.watch.DebuggerTreeNodeImpl; |
| import com.intellij.debugger.ui.impl.watch.ValueDescriptorImpl; |
| import com.intellij.ide.dnd.DnDAction; |
| import com.intellij.ide.dnd.DnDDragStartBean; |
| import com.intellij.ide.dnd.DnDManager; |
| import com.intellij.ide.dnd.DnDSource; |
| import com.intellij.ide.dnd.aware.DnDAwareTree; |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.util.Pair; |
| import com.intellij.ui.treeStructure.Tree; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.tree.TreePath; |
| import java.awt.*; |
| |
| public class ValueNodeDnD { |
| private final DnDAwareTree myTree; |
| |
| public ValueNodeDnD(DnDAwareTree tree, Disposable parent) { |
| myTree = tree; |
| |
| DnDManager.getInstance().registerSource(new DnDSource() { |
| public boolean canStartDragging(final DnDAction action, final Point dragOrigin) { |
| return getNodesToDrag().length > 0; |
| } |
| |
| public DnDDragStartBean startDragging(final DnDAction action, final Point dragOrigin) { |
| DebuggerTreeNodeImpl[] nodes = getNodesToDrag(); |
| return new DnDDragStartBean(nodes); |
| } |
| |
| @Nullable |
| public Pair<Image, Point> createDraggedImage(final DnDAction action, final Point dragOrigin) { |
| DebuggerTreeNodeImpl[] nodes = getNodesToDrag(); |
| |
| Pair<Image, Point> image; |
| if (nodes.length == 1) { |
| image = DnDAwareTree.getDragImage(myTree, new TreePath(nodes[0].getPath()), dragOrigin); |
| } else { |
| image = DnDAwareTree.getDragImage(myTree, nodes.length + " elements", dragOrigin); |
| } |
| |
| return image; |
| } |
| |
| public void dragDropEnd() { |
| } |
| |
| public void dropActionChanged(final int gestureModifiers) { |
| } |
| }, tree); |
| } |
| |
| private DebuggerTreeNodeImpl[] getNodesToDrag() { |
| return myTree.getSelectedNodes(DebuggerTreeNodeImpl.class, new Tree.NodeFilter<DebuggerTreeNodeImpl>() { |
| public boolean accept(final DebuggerTreeNodeImpl node) { |
| return node.getDescriptor() instanceof ValueDescriptorImpl; |
| } |
| }); |
| } |
| |
| } |