platform/platform-impl/src/com/intellij/openapi/wm/impl/content/ComboContentLayout.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.ListPopup;
  19 import com.intellij.openapi.wm.impl.TitlePanel;
  20 import com.intellij.ui.content.ContentManagerEvent;
  21
  22 import java.awt.*;
  23 import java.awt.geom.GeneralPath;
  24
  25 class ComboContentLayout extends ContentLayout {
  26
  27   BaseLabel myIdLabel;
  28   ContentComboLabel myComboLabel;
  29
  30   ComboContentLayout(ToolWindowContentUi ui) {
  31     super(ui);
  32   }
  33
  34   @Override
  35   public void init() {
  36     reset();
  37
  38     myIdLabel = new BaseLabel(myUi, false);
  39     myComboLabel = new ContentComboLabel(this);
  40   }
  41
  42   @Override
  43   public void reset() {
  44     myIdLabel = null;
  45     myComboLabel = null;
  46   }
  47
  48   @Override
  49   public void layout() {
  50     Rectangle bounds = myUi.getBounds();
  51     Dimension idSize = myIdLabel.getPreferredSize();
  52
  53     int eachX = 0;
  54     int eachY = TitlePanel.STRUT;
  55
  56     myIdLabel.setBounds(eachX, eachY, idSize.width, bounds.height);
  57     eachX += idSize.width;
  58
  59     Dimension comboSize = myComboLabel.getPreferredSize();
  60     int spaceLeft = bounds.width - eachX - (isToDrawCombo() ? 3 : 0);
  61
  62     int width = comboSize.width;
  63     if (width > spaceLeft) {
  64       width = spaceLeft;
  65     }
  66
  67     myComboLabel.setBounds(eachX, eachY, width, bounds.height);
  68   }
  69
  70   @Override
  71   public void paintComponent(Graphics g) {
  72     if (!isToDrawCombo()) return;
  73
  74     final Graphics2D g2d = (Graphics2D)g;
  75
  76     final GraphicsConfig c = new GraphicsConfig(g);
  77     c.setAntialiasing(true);
  78
  79     fillTabShape(g2d, myComboLabel, getShapeFor(myComboLabel), true);
  80
  81     c.restore();
  82   }
  83
  84   @Override
  85   public void paintChildren(Graphics g) {
  86     if (!isToDrawCombo()) return;
  87
  88     final GraphicsConfig c = new GraphicsConfig(g);
  89     c.setAntialiasing(true);
  90
  91     final Graphics2D g2d = (Graphics2D)g;
  92
  93     final Color edges = myUi.myWindow.isActive() ? TAB_BORDER_ACTIVE_WINDOW : TAB_BORDER_PASSIVE_WINDOW;
  94     g2d.setColor(edges);
  95
  96     Shape shape = getShapeFor(myComboLabel);
  97     g2d.draw(shape);
  98
  99     c.restore();
 100   }
 101
 102   private Shape getShapeFor(ContentComboLabel label) {
 103     final Rectangle bounds = label.getBounds();
 104
 105     if (bounds.width <= 0 || bounds.height <= 0) return new GeneralPath();
 106
 107     bounds.y = bounds.y - TitlePanel.STRUT;
 108     int height = bounds.height - 1;
 109
 110     bounds.width += 1;
 111
 112     int arc = TAB_ARC;
 113
 114     final GeneralPath path = new GeneralPath();
 115     path.moveTo(bounds.x, bounds.y + height - arc);
 116     path.lineTo(bounds.x, bounds.y + arc);
 117     path.quadTo(bounds.x, bounds.y, bounds.x + arc, bounds.y);
 118     path.lineTo(bounds.x + bounds.width - arc, bounds.y);
 119     path.quadTo(bounds.x + bounds.width, bounds.y, bounds.x + bounds.width, bounds.y + arc);
 120     path.lineTo(bounds.x + bounds.width, bounds.y + height - arc);
 121     path.quadTo(bounds.x + bounds.width, bounds.y + height, bounds.x + bounds.width - arc, bounds.y + height);
 122     path.lineTo(bounds.x + arc, bounds.y + height);
 123     path.quadTo(bounds.x, bounds.y + height, bounds.x, bounds.y + height - arc);
 124     path.closePath();
 125
 126     return path;
 127   }
 128
 129
 130   @Override
 131   public void update() {
 132     updateIdLabel(myIdLabel);
 133     myComboLabel.update();
 134   }
 135
 136   @Override
 137   public void rebuild() {
 138     myUi.removeAll();
 139
 140     myUi.add(myIdLabel);
 141     myUi.initMouseListeners(myIdLabel, myUi);
 142
 143     myUi.add(myComboLabel);
 144     myUi.initMouseListeners(myComboLabel, myUi);
 145   }
 146
 147   boolean isToDrawCombo() {
 148     return myUi.myManager.getContentCount() > 1;
 149   }
 150
 151   @Override
 152   public void contentAdded(ContentManagerEvent event) {
 153   }
 154
 155   @Override
 156   public void contentRemoved(ContentManagerEvent event) {
 157   }
 158
 159   @Override
 160   public void showContentPopup(ListPopup listPopup) {
 161     listPopup.setMinimumSize(new Dimension(myComboLabel.getPreferredSize().width, 0));
 162     listPopup.showUnderneathOf(myComboLabel);
 163   }
 164 }