| /* |
| * 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.watch; |
| |
| import com.intellij.debugger.ui.tree.NodeDescriptor; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| |
| public class DescriptorTree { |
| private final HashMap<NodeDescriptor, List<NodeDescriptor>> myChildrenMap = new HashMap<NodeDescriptor, List<NodeDescriptor>>(); |
| private final List<NodeDescriptor> myRootChildren = new ArrayList<NodeDescriptor>(); |
| private final boolean myInitial; |
| private int myFrameCount = -1; |
| private int myFrameIndex = -1; |
| |
| public DescriptorTree() { |
| this(false); |
| } |
| |
| public DescriptorTree(boolean isInitial) { |
| myInitial = isInitial; |
| } |
| |
| public void clear() { |
| myChildrenMap.clear(); |
| myRootChildren.clear(); |
| } |
| |
| public boolean frameIdEquals(final int frameCount, final int frameIndex) { |
| return myFrameCount == frameCount && myFrameIndex == frameIndex; |
| } |
| |
| public void setFrameId(final int frameCount, final int frameIndex) { |
| myFrameIndex = frameIndex; |
| myFrameCount = frameCount; |
| } |
| |
| public void addChild(NodeDescriptor parent, NodeDescriptor child) { |
| List<NodeDescriptor> children; |
| |
| if(parent == null) { |
| children = myRootChildren; |
| } |
| else { |
| children = myChildrenMap.get(parent); |
| if(children == null) { |
| children = new ArrayList<NodeDescriptor>(); |
| myChildrenMap.put(parent, children); |
| } |
| } |
| children.add(child); |
| if (myInitial && child instanceof LocalVariableDescriptorImpl) { |
| ((LocalVariableDescriptorImpl)child).setNewLocal(false); |
| } |
| } |
| |
| public List<NodeDescriptor> getChildren(NodeDescriptor parent) { |
| if(parent == null) { |
| return myRootChildren; |
| } |
| |
| List<NodeDescriptor> children = myChildrenMap.get(parent); |
| return children != null ? children : Collections.<NodeDescriptor>emptyList(); |
| } |
| |
| public void dfst(DFSTWalker walker) { |
| dfstImpl(null, myRootChildren, walker); |
| } |
| |
| private void dfstImpl(NodeDescriptor descriptor, List<NodeDescriptor> children, DFSTWalker walker) { |
| if(children != null) { |
| for (NodeDescriptor child : children) { |
| walker.visit(descriptor, child); |
| dfstImpl(child, myChildrenMap.get(child), walker); |
| } |
| } |
| } |
| |
| public interface DFSTWalker { |
| void visit(NodeDescriptor parent, NodeDescriptor child); |
| } |
| } |