1 /*
   2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.awt.windows;
  27 
  28 import java.awt.Component;
  29 import java.awt.Graphics;
  30 import java.awt.event.ComponentEvent;
  31 import java.awt.event.MouseEvent;
  32 
  33 import sun.awt.LightweightFrame;
  34 import sun.awt.LightweightFramePeer;
  35 import sun.awt.LightweightFramePeerInterface;
  36 import sun.swing.JLightweightFrame;
  37 
  38 public class WLightweightFramePeer extends WFramePeer implements LightweightFramePeer {
  39 
  40     public WLightweightFramePeer(LightweightFrame target) {
  41         super(target);
  42     }
  43 
  44     private static WLightweightFramePeer lightweightFramePeerUnderMouse = null;
  45 
  46     @Override
  47     public void setLightweightFrameUnderMouse() {
  48         lightweightFramePeerUnderMouse = this;
  49         setLWFrameUnderMouse(this);
  50     }
  51 
  52     @Override
  53     public boolean cleanLightweightFrameUnderMouse() {
  54         if (lightweightFramePeerUnderMouse == this) {
  55             lightweightFramePeerUnderMouse = null;
  56             setLWFrameUnderMouse(null);
  57             return true;
  58         }
  59         return false;
  60     }
  61 
  62     static JLightweightFrame getFrameUnderCursor() {
  63         if (lightweightFramePeerUnderMouse == null) {
  64             return null;
  65         } else {
  66             return (JLightweightFrame)lightweightFramePeerUnderMouse.getLwTarget();
  67         }
  68     }
  69 
  70     private static native void setLWFrameUnderMouse(WLightweightFramePeer lwFrame);
  71 
  72     private LightweightFrame getLwTarget() {
  73         return (LightweightFrame)target;
  74     }
  75 
  76     @Override
  77     public Graphics getGraphics() {
  78         return getLwTarget().getGraphics();
  79     }
  80 
  81     @Override
  82     public void show() {
  83         super.show();
  84         postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_SHOWN));
  85     }
  86 
  87     @Override
  88     public void hide() {
  89         super.hide();
  90         postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_HIDDEN));
  91     }
  92 
  93     @Override
  94     public void reshape(int x, int y, int width, int height) {
  95         super.reshape(x, y, width, height);
  96         postEvent(new ComponentEvent((Component) getTarget(), ComponentEvent.COMPONENT_MOVED));
  97         postEvent(new ComponentEvent((Component) getTarget(), ComponentEvent.COMPONENT_RESIZED));
  98     }
  99 
 100     @Override
 101     public void handleEvent(java.awt.AWTEvent e) {
 102         if (e.getID() == MouseEvent.MOUSE_PRESSED) {
 103             emulateActivation(true);
 104         }
 105         super.handleEvent(e);
 106     }
 107 
 108     @Override
 109     public void grab() {
 110         getLwTarget().grabFocus();
 111     }
 112 
 113     @Override
 114     public void ungrab() {
 115         getLwTarget().ungrabFocus();
 116     }
 117 }