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.openapi.ui.popup.JBPopupFactory;
  19 import com.intellij.openapi.ui.popup.ListPopup;
  20 import com.intellij.openapi.ui.popup.PopupStep;
  21 import com.intellij.openapi.ui.popup.util.BaseListPopupStep;
  22 import com.intellij.ui.content.Content;
  23 import com.intellij.ui.content.ContentManager;
  24 import com.intellij.util.ui.UIUtil;
  25 import org.jetbrains.annotations.NotNull;
  26
  27 import javax.swing.*;
  28 import javax.swing.border.Border;
  29 import javax.swing.border.EmptyBorder;
  30 import java.awt.*;
  31 import java.awt.event.MouseAdapter;
  32 import java.awt.event.MouseEvent;
  33 import java.util.Arrays;
  34
  35 public class ContentComboLabel extends BaseLabel {
  36
  37   private ComboIcon myComboIcon = new ComboIcon() {
  38     @Override
  39     public Rectangle getIconRec() {
  40       return new Rectangle(getWidth() - getIconWidth(), 0, getIconWidth(), getHeight());
  41     }
  42
  43     @Override
  44     public boolean isActive() {
  45       return myUi.myWindow.isActive();
  46     }
  47   };
  48   private ComboContentLayout myLayout;
  49
  50   public ContentComboLabel(ComboContentLayout layout) {
  51     super(layout.myUi, true);
  52     myLayout = layout;
  53     addMouseListener(new MouseAdapter(){});
  54   }
  55
  56   @Override
  57   protected void processMouseEvent(MouseEvent e) {
  58     super.processMouseEvent(e);
  59
  60     if (UIUtil.isActionClick(e)) {
  61       myUi.showContentPopup(e);
  62     }
  63   }
  64
  65   void update() {
  66     if (isToDrawCombo()) {
  67       setBorder(new EmptyBorder(0, 8, 0, 8));
  68     } else {
  69       setBorder(null);
  70     }
  71
  72     updateTextAndIcon(myUi.myManager.getSelectedContent(), true);
  73   }
  74
  75   @Override
  76   protected void paintComponent(Graphics g) {
  77     if (isToDrawCombo()) {
  78       g.translate(0, -TAB_SHIFT);
  79       super.paintComponent(g);
  80       g.translate(0, TAB_SHIFT);
  81     } else {
  82       super.paintComponent(g);
  83     }
  84   }
  85
  86   @Override
  87   public Dimension getPreferredSize() {
  88     if (!isToDrawCombo()) {
  89       return super.getPreferredSize();
  90     }
  91
  92     int width = 0;
  93     for (int i = 0; i < myUi.myManager.getContentCount(); i++) {
  94       String text = myUi.myManager.getContent(i).getDisplayName();
  95       int eachTextWidth = getFontMetrics(getFont()).stringWidth(text);
  96       width = Math.max(eachTextWidth, width);
  97     }
  98
  99     Border border = getBorder();
 100     if (border != null) {
 101       Insets insets = border.getBorderInsets(this);
 102       width += (insets.left + insets.right);
 103     }
 104
 105     width += myComboIcon.getIconWidth();
 106
 107     return new Dimension(width, super.getPreferredSize().height);
 108   }
 109
 110   private boolean isToDrawCombo() {
 111     return myLayout.isToDrawCombo();
 112   }
 113
 114   @Override
 115   protected void paintChildren(Graphics g) {
 116     super.paintChildren(g);
 117     if (isToDrawCombo()) {
 118       myComboIcon.paintIcon(this, g);
 119       g.setColor(new Color(255, 255, 255, 100));
 120       int x = myComboIcon.getIconRec().x - 3;
 121       int yTop = myComboIcon.getIconRec().y;
 122       int yBottom = yTop + myComboIcon.getIconHeight();
 123       g.drawLine(x, yTop + 1, x, yBottom - 3);
 124
 125     }
 126   }
 127
 128   @Override
 129   public Content getContent() {
 130     return myUi.myManager.getSelectedContent();
 131   }
 132 }