platform/platform-impl/src/com/intellij/ui/HeavyweightHint.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.ui;
  17
  18 import com.intellij.openapi.diagnostic.Logger;
  19 import org.jetbrains.annotations.NotNull;
  20
  21 import javax.swing.*;
  22 import javax.swing.event.EventListenerList;
  23 import java.awt.*;
  24 import java.util.EventListener;
  25 import java.util.EventObject;
  26
  27 public class HeavyweightHint implements Hint {
  28   private static final Logger LOG = Logger.getInstance("#com.intellij.ui.LightweightHint");
  29
  30   private final JComponent myComponent;
  31   private final boolean myFocusableWindowState;
  32   private final EventListenerList myListenerList;
  33
  34   private JWindow myWindow;
  35
  36   public HeavyweightHint(final JComponent component) {
  37     this(component, true);
  38   }
  39
  40   public HeavyweightHint(@NotNull final JComponent component, final boolean focusableWindowState) {
  41     myComponent = component;
  42     myFocusableWindowState = focusableWindowState;
  43     myListenerList = new EventListenerList();
  44   }
  45
  46   /**
  47    * Shows the hint as the window
  48    */
  49   public void show(@NotNull JComponent parentComponent, int x, int y, JComponent focusBackComponent) {
  50     Dimension preferredSize = myComponent.getPreferredSize();
  51
  52     LOG.assertTrue(parentComponent.isShowing());
  53
  54     Window windowAncestor = SwingUtilities.getWindowAncestor(parentComponent);
  55     LOG.assertTrue(windowAncestor != null);
  56
  57     myWindow = new JWindow(windowAncestor);
  58     myWindow.setFocusableWindowState(myFocusableWindowState);
  59
  60     Point locationOnScreen = parentComponent.getLocationOnScreen();
  61
  62     myWindow.getContentPane().setLayout(new BorderLayout());
  63     myWindow.getContentPane().add(myComponent, BorderLayout.CENTER);
  64     myWindow.setBounds(locationOnScreen.x + x, locationOnScreen.y + y, preferredSize.width, preferredSize.height);
  65     myWindow.pack();
  66     myWindow.setVisible(true);
  67   }
  68
  69   protected void fireHintHidden() {
  70     final EventListener[] listeners = myListenerList.getListeners(HintListener.class);
  71     for (EventListener listener1 : listeners) {
  72       HintListener listener = (HintListener) listener1;
  73       listener.hintHidden(new EventObject(this));
  74     }
  75   }
  76
  77   public Dimension getPreferredSize(){
  78     return myComponent.getPreferredSize();
  79   }
  80
  81   public boolean isVisible() {
  82     return myComponent.isShowing();
  83   }
  84
  85   public JComponent getComponent() {
  86     return myComponent;
  87   }
  88
  89   /**
  90    * Hides and disposes hint window
  91    */
  92   public void hide() {
  93     if(myWindow != null){
  94       myWindow.dispose();
  95       myWindow = null;
  96     }
  97     fireHintHidden();
  98   }
  99
 100   public void addHintListener(HintListener listener) {
 101     myListenerList.add(HintListener.class, listener);
 102   }
 103
 104   public void removeHintListener(HintListener listener) {
 105     myListenerList.remove(HintListener.class, listener);
 106   }
 107 }