java/java-impl/src/com/intellij/ide/structureView/impl/java/KindSorter.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.ide.structureView.impl.java;
  17
  18 import com.intellij.ide.util.treeView.smartTree.ActionPresentation;
  19 import com.intellij.ide.util.treeView.smartTree.Sorter;
  20 import com.intellij.psi.PsiMethod;
  21 import org.jetbrains.annotations.NonNls;
  22 import org.jetbrains.annotations.NotNull;
  23
  24 import java.util.Comparator;
  25
  26 public class KindSorter implements Sorter {
  27   public static final Sorter INSTANCE = new KindSorter();
  28
  29   @NonNls public static final String ID = "KIND";
  30   private static final Comparator COMPARATOR = new Comparator() {
  31     public int compare(final Object o1, final Object o2) {
  32       return getWeight(o1) - getWeight(o2);
  33     }
  34
  35     private int getWeight(final Object value) {
  36       if (value instanceof JavaClassTreeElement) {
  37         return 10;
  38       }
  39       if (value instanceof ClassInitializerTreeElement) {
  40         return 15;
  41       }
  42       if (value instanceof SuperTypeGroup) {
  43         return 20;
  44       }
  45       if (value instanceof PsiMethodTreeElement) {
  46         final PsiMethodTreeElement methodTreeElement = (PsiMethodTreeElement)value;
  47         final PsiMethod method = methodTreeElement.getMethod();
  48
  49         return method.isConstructor() ? 30 : 35;
  50       }
  51       if (value instanceof PropertyGroup) {
  52         return 40;
  53       }
  54       if (value instanceof PsiFieldTreeElement) {
  55         return 50;
  56       }
  57       return 60;
  58     }
  59   };
  60
  61   public Comparator getComparator() {
  62     return COMPARATOR;
  63   }
  64
  65   public boolean isVisible() {
  66     return false;
  67   }
  68
  69   @NotNull
  70   public ActionPresentation getPresentation() {
  71     throw new IllegalStateException();
  72   }
  73
  74   @NotNull
  75   public String getName() {
  76     return ID;
  77   }
  78 }