| /* |
| * Copyright 2000-2010 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.openapi.vcs.changes.ui; |
| |
| import com.intellij.openapi.vfs.VirtualFile; |
| |
| import java.util.Comparator; |
| |
| /** |
| * not a bug: Orders directories, shortest paths first, files are left as is. |
| * correct alphabet ordering is not here |
| */ |
| public class VirtualFileHierarchicalComparator implements Comparator<VirtualFile> { |
| private static final VirtualFileHierarchicalComparator ourInstance = new VirtualFileHierarchicalComparator(); |
| |
| public static VirtualFileHierarchicalComparator getInstance() { |
| return ourInstance; |
| } |
| |
| public int compare(final VirtualFile vf1, final VirtualFile vf2) { |
| final boolean isDir1 = vf1.isDirectory(); |
| final boolean isDir2 = vf2.isDirectory(); |
| |
| if ((! isDir1) && (! isDir2)) return 0; |
| if (isDir1 && (! isDir2)) return -1; |
| if ((! isDir1) && isDir2) return 1; |
| |
| final int diff = vf1.getPath().length() - vf2.getPath().length(); |
| return diff == 0 ? 0 : (diff < 0 ? -1 : 1); |
| } |
| } |