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/*
* Copyright 2000-2012 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.codeInspection.ex;
import com.intellij.profile.codeInspection.ui.inspectionsTree.InspectionConfigTreeNode;
import com.intellij.psi.search.scope.packageSet.NamedScope;
import com.intellij.ui.treeStructure.Tree;
import com.intellij.util.ui.tree.TreeUtil;
import com.intellij.util.xmlb.annotations.AbstractCollection;
import com.intellij.util.xmlb.annotations.Tag;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.TreeSet;
/**
* User: anna
* Date: Dec 18, 2004
*/
@Tag("profile-state")
public class VisibleTreeState{
@Tag("expanded-state")
@AbstractCollection(surroundWithTag = false, elementTag = "expanded", elementValueAttribute = "path", elementTypes = {State.class})
public TreeSet<State> myExpandedNodes = new TreeSet<State>();
@Tag("selected-state")
@AbstractCollection(surroundWithTag = false, elementTag = "selected", elementValueAttribute = "path", elementTypes = {State.class})
public TreeSet<State> mySelectedNodes = new TreeSet<State>();
public VisibleTreeState(VisibleTreeState src) {
myExpandedNodes.addAll(src.myExpandedNodes);
mySelectedNodes.addAll(src.mySelectedNodes);
}
public VisibleTreeState() {
}
public void expandNode(InspectionConfigTreeNode node) {
myExpandedNodes.add(getState(node));
}
public void collapseNode(InspectionConfigTreeNode node) {
myExpandedNodes.remove(getState(node));
}
public void restoreVisibleState(Tree tree) {
ArrayList<TreePath> pathsToExpand = new ArrayList<TreePath>();
ArrayList<TreePath> toSelect = new ArrayList<TreePath>();
traverseNodes((DefaultMutableTreeNode)tree.getModel().getRoot(), pathsToExpand, toSelect);
TreeUtil.restoreExpandedPaths(tree, pathsToExpand);
if (toSelect.isEmpty()) {
TreeUtil.selectFirstNode(tree);
}
else {
for (final TreePath aToSelect : toSelect) {
TreeUtil.selectPath(tree, aToSelect);
}
}
}
private void traverseNodes(final DefaultMutableTreeNode root, List<TreePath> pathsToExpand, List<TreePath> toSelect) {
final State state = getState((InspectionConfigTreeNode)root);
final TreeNode[] rootPath = root.getPath();
if (mySelectedNodes.contains(state)) {
toSelect.add(new TreePath(rootPath));
}
if (myExpandedNodes.contains(state)) {
pathsToExpand.add(new TreePath(rootPath));
}
for (int i = 0; i < root.getChildCount(); i++) {
traverseNodes((DefaultMutableTreeNode)root.getChildAt(i), pathsToExpand, toSelect);
}
}
public void saveVisibleState(Tree tree) {
myExpandedNodes.clear();
final DefaultMutableTreeNode rootNode = (DefaultMutableTreeNode)tree.getModel().getRoot();
Enumeration<TreePath> expanded = tree.getExpandedDescendants(new TreePath(rootNode.getPath()));
if (expanded != null) {
while (expanded.hasMoreElements()) {
final TreePath treePath = expanded.nextElement();
final InspectionConfigTreeNode node = (InspectionConfigTreeNode)treePath.getLastPathComponent();
myExpandedNodes.add(getState(node));
}
}
setSelectionPaths(tree.getSelectionPaths());
}
private static State getState(InspectionConfigTreeNode node) {
Descriptor descriptor = node.getDefaultDescriptor();
final State expandedNode;
if (descriptor != null) {
expandedNode = new State(descriptor);
}
else {
final StringBuilder buf = new StringBuilder();
while (node.getParent() != null) {
buf.append(node.getGroupName());
node = (InspectionConfigTreeNode)node.getParent();
}
expandedNode = new State(buf.toString());
}
return expandedNode;
}
public void setSelectionPaths(final TreePath[] selectionPaths) {
mySelectedNodes.clear();
if (selectionPaths != null) {
for (TreePath selectionPath : selectionPaths) {
final InspectionConfigTreeNode node = (InspectionConfigTreeNode)selectionPath.getLastPathComponent();
mySelectedNodes.add(getState(node));
}
}
}
public static class State implements Comparable{
@Tag("id")
public String myKey;
Descriptor myDescriptor;
public State(String key) {
myKey = key;
}
public State(Descriptor descriptor) {
myKey = descriptor.toString();
myDescriptor = descriptor;
}
//readExternal
public State(){
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
State state = (State)o;
if (myKey != null ? !myKey.equals(state.myKey) : state.myKey != null) return false;
return true;
}
@Override
public int hashCode() {
int result = myKey != null ? myKey.hashCode() : 0;
result = 31 * result + (myDescriptor != null ? myDescriptor.hashCode() : 0);
return result;
}
@Override
public int compareTo(Object o) {
if (!(o instanceof State)) return -1;
final State other = (State)o;
if (myKey.equals(other.myKey)) {
if (myDescriptor != null && other.myDescriptor != null) {
final NamedScope scope1 = myDescriptor.getScope();
final NamedScope scope2 = other.myDescriptor.getScope();
if (scope1 != null && scope2 != null) {
return scope1.getName().compareTo(scope2.getName());
}
}
}
return myKey.compareTo(other.myKey);
}
}
}
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