gomp-20050608-branch/libjava/classpath/gnu/java/awt/peer/qt/QtMenuPeer.java

   1 /* QtMenuPeer.java --
   2    Copyright (C)  2005  Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38 package gnu.java.awt.peer.qt;
  39
  40 import java.awt.Menu;
  41 import java.awt.MenuItem;
  42 import java.awt.PopupMenu;
  43 import java.awt.event.ActionEvent;
  44 import java.awt.peer.MenuPeer;
  45 import java.util.Vector;
  46
  47 public class QtMenuPeer extends QtMenuComponentPeer implements MenuPeer
  48 {
  49   Vector items;
  50   boolean itemsAdded;
  51
  52   public QtMenuPeer( QtToolkit kit, Menu owner )
  53   {
  54     super( kit, owner );
  55     itemsAdded = false;
  56   }
  57
  58   protected native void init();
  59
  60   protected void setup()
  61   {
  62     items = new Vector();
  63     setLabel( ((Menu)owner).getLabel() );
  64     if( ((Menu)owner).isTearOff() )
  65       allowTearOff();
  66   }
  67
  68   // Recurse the menu tree adding items,
  69   // called from the MenuBar addMenus() method, called from the Frame peer.
  70   void addItems()
  71   {
  72     if(!itemsAdded)
  73       {
  74         Menu o = (Menu)owner;
  75         for( int i=0; i < o.getItemCount(); i++ )
  76           {
  77             MenuItem ci = (MenuItem)o.getItem(i);
  78             if (ci instanceof Menu && ci.getPeer() != null)
  79               ((QtMenuPeer)ci.getPeer()).addItems();
  80             addItem( ci );
  81           }
  82         itemsAdded = true;
  83       }
  84   }
  85
  86   private void fireClick()
  87   {
  88     ActionEvent e = new ActionEvent(owner,
  89                                     ActionEvent.ACTION_PERFORMED,
  90                                     ((Menu)owner).getActionCommand());
  91     QtToolkit.eventQueue.postEvent(e);
  92   }
  93
  94   private native void allowTearOff();
  95
  96   private native void insertSeperator();
  97
  98   private native void insertItem(QtMenuItemPeer p);
  99
 100   private native void insertMenu(QtMenuPeer menu);
 101
 102   private native void delItem(long ptr);
 103
 104   private void add(long ptr)
 105   {
 106     items.add(new Long(ptr));
 107   }
 108
 109   // ************ Public methods *********************
 110
 111   public void addItem( MenuItem item )
 112   {
 113     if( item instanceof Menu || item instanceof PopupMenu)
 114       insertMenu((QtMenuPeer)item.getPeer());
 115     else
 116       {
 117         QtMenuItemPeer p = (QtMenuItemPeer)item.getPeer();
 118         insertItem(p);
 119       }
 120   }
 121
 122   public void addSeparator()
 123   {
 124     insertSeperator();
 125   }
 126
 127   public void delItem( int index )
 128   {
 129     long ptr = ((Long)items.elementAt(index)).longValue();
 130     delItem(ptr);
 131     items.removeElementAt(index);
 132   }
 133
 134   // Inherited methods..
 135
 136   public void disable()
 137   {
 138     setEnabled(false);
 139   }
 140
 141   public void enable()
 142   {
 143     setEnabled(true);
 144   }
 145
 146   public native void setEnabled(boolean enabled);
 147
 148   public native void setLabel(String text);
 149 }
 150
 151
 152