platform/platform-impl/src/com/intellij/openapi/wm/impl/content/ContentComboLabel.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.openapi.wm.impl.content;
  17
  18 import com.intellij.ui.content.Content;
  19 import com.intellij.util.ui.UIUtil;
  20
  21 import javax.swing.border.Border;
  22 import javax.swing.border.EmptyBorder;
  23 import java.awt.*;
  24 import java.awt.event.MouseAdapter;
  25 import java.awt.event.MouseEvent;
  26
  27 public class ContentComboLabel extends BaseLabel {
  28
  29   private ComboIcon myComboIcon = new ComboIcon() {
  30     @Override
  31     public Rectangle getIconRec() {
  32       return new Rectangle(getWidth() - getIconWidth(), 0, getIconWidth(), getHeight());
  33     }
  34
  35     @Override
  36     public boolean isActive() {
  37       return myUi.myWindow.isActive();
  38     }
  39   };
  40   private ComboContentLayout myLayout;
  41
  42   public ContentComboLabel(ComboContentLayout layout) {
  43     super(layout.myUi, true);
  44     myLayout = layout;
  45     addMouseListener(new MouseAdapter(){});
  46   }
  47
  48   @Override
  49   protected void processMouseEvent(MouseEvent e) {
  50     super.processMouseEvent(e);
  51
  52     if (UIUtil.isActionClick(e)) {
  53       myUi.showContentPopup(e);
  54     }
  55   }
  56
  57   void update() {
  58     if (isToDrawCombo()) {
  59       setBorder(new EmptyBorder(0, 8, 0, 8));
  60     } else {
  61       setBorder(null);
  62     }
  63
  64     updateTextAndIcon(myUi.myManager.getSelectedContent(), true);
  65   }
  66
  67   @Override
  68   protected void paintComponent(Graphics g) {
  69     if (isToDrawCombo()) {
  70       g.translate(0, -TAB_SHIFT);
  71       super.paintComponent(g);
  72       g.translate(0, TAB_SHIFT);
  73     } else {
  74       super.paintComponent(g);
  75     }
  76   }
  77
  78   @Override
  79   public Dimension getPreferredSize() {
  80     if (!isToDrawCombo()) {
  81       return super.getPreferredSize();
  82     }
  83
  84     int width = 0;
  85     for (int i = 0; i < myUi.myManager.getContentCount(); i++) {
  86       String text = myUi.myManager.getContent(i).getDisplayName();
  87       FontMetrics metrics = getFontMetrics(getFont());
  88       int eachTextWidth = metrics.stringWidth(text != null ? text : "");
  89       width = Math.max(eachTextWidth, width);
  90     }
  91
  92     Border border = getBorder();
  93     if (border != null) {
  94       Insets insets = border.getBorderInsets(this);
  95       width += (insets.left + insets.right);
  96     }
  97
  98     width += myComboIcon.getIconWidth();
  99
 100     return new Dimension(width, super.getPreferredSize().height);
 101   }
 102
 103   private boolean isToDrawCombo() {
 104     return myLayout.isToDrawCombo();
 105   }
 106
 107   @Override
 108   protected void paintChildren(Graphics g) {
 109     super.paintChildren(g);
 110     if (isToDrawCombo()) {
 111       myComboIcon.paintIcon(this, g);
 112       g.setColor(new Color(255, 255, 255, 100));
 113       int x = myComboIcon.getIconRec().x - 3;
 114       int yTop = myComboIcon.getIconRec().y;
 115       int yBottom = yTop + myComboIcon.getIconHeight();
 116       g.drawLine(x, yTop + 1, x, yBottom - 3);
 117
 118     }
 119   }
 120
 121   @Override
 122   public Content getContent() {
 123     return myUi.myManager.getSelectedContent();
 124   }
 125 }