platform/lang-impl/src/com/intellij/ide/util/NavigationItemListCellRenderer.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.util;
  17
  18 import com.intellij.ide.ui.UISettings;
  19 import com.intellij.ide.util.treeView.NodeRenderer;
  20 import com.intellij.navigation.ItemPresentation;
  21 import com.intellij.navigation.NavigationItem;
  22 import com.intellij.openapi.actionSystem.DataConstants;
  23 import com.intellij.openapi.actionSystem.DataProvider;
  24 import com.intellij.openapi.actionSystem.PlatformDataKeys;
  25 import com.intellij.openapi.editor.colors.EditorColorsManager;
  26 import com.intellij.openapi.editor.colors.EditorColorsScheme;
  27 import com.intellij.openapi.editor.markup.EffectType;
  28 import com.intellij.openapi.editor.markup.TextAttributes;
  29 import com.intellij.openapi.vcs.FileStatus;
  30 import com.intellij.openapi.vfs.VirtualFile;
  31 import com.intellij.openapi.project.Project;
  32 import com.intellij.problems.WolfTheProblemSolver;
  33 import com.intellij.psi.PsiElement;
  34 import com.intellij.psi.util.PsiUtilBase;
  35 import com.intellij.ui.ColoredListCellRenderer;
  36 import com.intellij.ui.SimpleTextAttributes;
  37 import com.intellij.ui.FileColorManager;
  38 import com.intellij.util.IconUtil;
  39 import com.intellij.util.ui.UIUtil;
  40
  41 import javax.swing.*;
  42 import java.awt.*;
  43
  44 public class NavigationItemListCellRenderer extends JPanel implements ListCellRenderer {
  45   public NavigationItemListCellRenderer() {
  46     super(new BorderLayout());
  47   }
  48
  49   public Component getListCellRendererComponent(
  50     JList list,
  51     Object value,
  52     int index,
  53     boolean isSelected,
  54     boolean cellHasFocus) {
  55     EditorColorsScheme scheme = EditorColorsManager.getInstance().getGlobalScheme();
  56     Font editorFont = new Font(scheme.getEditorFontName(), Font.PLAIN, scheme.getEditorFontSize());
  57     setFont(editorFont);
  58     removeAll();
  59     final Component leftCellRendererComponent =
  60       new LeftRenderer().getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
  61     final Color listBg = leftCellRendererComponent.getBackground();
  62     add(leftCellRendererComponent, BorderLayout.WEST);
  63     if  (UISettings.getInstance().SHOW_ICONS_IN_QUICK_NAVIGATION){
  64       final DefaultListCellRenderer moduleRenderer = ModuleRendererFactory.getInstance().getModuleRenderer();
  65       final Component rightCellRendererComponent =
  66         moduleRenderer.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
  67       rightCellRendererComponent.setBackground(listBg);
  68       add(rightCellRendererComponent, BorderLayout.EAST);
  69       final JPanel spacer = new JPanel();
  70       final Dimension size = rightCellRendererComponent.getSize();
  71       spacer.setSize(new Dimension((int)(size.width * 0.015 + leftCellRendererComponent.getSize().width * 0.015), size.height));
  72       spacer.setBackground(isSelected ? UIUtil.getListSelectionBackground() : listBg);
  73       add(spacer, BorderLayout.CENTER);
  74     }
  75     setBackground(isSelected ? UIUtil.getListSelectionBackground() : UIUtil.getListBackground());
  76     return this;
  77   }
  78
  79   private static class LeftRenderer extends ColoredListCellRenderer {
  80     protected void customizeCellRenderer(
  81       JList list,
  82       Object value,
  83       int index,
  84       boolean selected,
  85       boolean hasFocus
  86       ) {
  87       Color bgColor = UIUtil.getListBackground();
  88
  89       if (value instanceof NavigationItem) {
  90         NavigationItem element = (NavigationItem)value;
  91         ItemPresentation presentation = element.getPresentation();
  92         assert presentation != null: "PSI elements displayed in choose by name lists must return a non-null value from getPresentation(): element " +
  93           element.toString() + ", class " + element.getClass().getName();
  94         String name = presentation.getPresentableText();
  95         Color color = list.getForeground();
  96         boolean isProblemFile = element instanceof PsiElement
  97                                 && WolfTheProblemSolver.getInstance(((PsiElement)element).getProject())
  98                                    .isProblemFile(PsiUtilBase.getVirtualFile((PsiElement)element));
  99
 100         if (element instanceof PsiElement || element instanceof DataProvider) {
 101           final PsiElement psiElement = element instanceof PsiElement ? (PsiElement)element : (PsiElement) ((DataProvider)element).getData(
 102             DataConstants.PSI_ELEMENT);
 103           if (psiElement != null) {
 104             final Project project = psiElement.getProject();
 105
 106             final VirtualFile virtualFile = PsiUtilBase.getVirtualFile(psiElement);
 107             isProblemFile = WolfTheProblemSolver.getInstance(project).isProblemFile(virtualFile);
 108
 109             final FileColorManager fileColorManager = FileColorManager.getInstance(project);
 110             if (virtualFile != null && fileColorManager.isEnabled()) {
 111               final Color fileColor = fileColorManager.getFileColor(psiElement.getContainingFile());
 112               if (fileColor != null) {
 113                 bgColor = fileColor;
 114               }
 115             }
 116           }
 117         }
 118
 119         FileStatus status = element.getFileStatus();
 120         if (status != FileStatus.NOT_CHANGED) {
 121           color = status.getColor();
 122         }
 123
 124         final TextAttributes textAttributes = NodeRenderer.getSimpleTextAttributes(presentation).toTextAttributes();
 125         if (isProblemFile) {
 126           textAttributes.setEffectType(EffectType.WAVE_UNDERSCORE);
 127           textAttributes.setEffectColor(Color.red);
 128         }
 129         textAttributes.setForegroundColor(color);
 130         SimpleTextAttributes nameAttributes = SimpleTextAttributes.fromTextAttributes(textAttributes);
 131         append(name, nameAttributes);
 132         setIcon(presentation.getIcon(false));
 133
 134         String containerText = presentation.getLocationString();
 135
 136         if (containerText != null && containerText.length() > 0) {
 137           append(" " + containerText, new SimpleTextAttributes(Font.PLAIN, Color.GRAY));
 138         }
 139       }
 140       else {
 141         setIcon(IconUtil.getEmptyIcon(false));
 142         append(value == null ? "" : value.toString(), new SimpleTextAttributes(Font.PLAIN, list.getForeground()));
 143       }
 144       setPaintFocusBorder(false);
 145       setBackground(selected ? UIUtil.getListSelectionBackground() : bgColor);
 146     }
 147   }
 148 }