Source for gnu.java.awt.peer.gtk.GtkMenuPeer

   1: /* GtkMenuPeer.java -- Implements MenuPeer with GTK+
   2:    Copyright (C) 1999, 2005, 2006  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: 
  39: package gnu.java.awt.peer.gtk;
  40: 
  41: import java.awt.Component;
  42: import java.awt.Menu;
  43: import java.awt.MenuContainer;
  44: import java.awt.MenuItem;
  45: import java.awt.MenuShortcut;
  46: import java.awt.peer.MenuItemPeer;
  47: import java.awt.peer.MenuPeer;
  48: 
  49: public class GtkMenuPeer extends GtkMenuItemPeer
  50:   implements MenuPeer
  51: {
  52:   /**
  53:    * Creates the associated gtk+ widget and stores it in the nsa table
  54:    * for this peer. Called by the create() method with the label name
  55:    * of the associated MenuItem. Overridden to greate a Menu widget.
  56:    */
  57:   protected native void create (String label);
  58: 
  59:   private native void addItem(MenuItemPeer item, int key,
  60:                               boolean shiftModifier);
  61: 
  62:   /** XXX - Document this and the override in GtkPopupMenuPeer. */
  63:   native void setupAccelGroup (GtkGenericPeer container);
  64: 
  65:   private native void addTearOff ();
  66: 
  67:   /**
  68:    * Overridden to not connect any signals.
  69:    */
  70:   protected void connectSignals()
  71:   {
  72:     // No signals to connect.
  73:   }
  74: 
  75:   public GtkMenuPeer (Menu menu)
  76:   {
  77:     super (menu);
  78: 
  79:     if (menu.isTearOff())
  80:       addTearOff();
  81: 
  82:     MenuContainer parent = menu.getParent ();
  83:     if (parent instanceof Menu)
  84:       setupAccelGroup ((GtkMenuPeer)((Menu)parent).getPeer ());
  85:     else if (parent instanceof Component)
  86:       setupAccelGroup ((GtkComponentPeer)((Component)parent).getPeer ());
  87:     else
  88:       setupAccelGroup (null); // XXX, should we warn about unknown parent?
  89:   }
  90: 
  91:   public void addItem (MenuItem item)
  92:   {
  93:     int key = 0;
  94:     boolean shiftModifier = false;
  95: 
  96:     MenuShortcut ms = item.getShortcut ();
  97:     if (ms != null)
  98:       {
  99:         key = ms.getKey ();
 100:         shiftModifier = ms.usesShiftModifier ();
 101:       }
 102: 
 103:     addItem ((MenuItemPeer) item.getPeer (), key, shiftModifier);
 104:   }
 105: 
 106:   public void addItem (MenuItemPeer item, MenuShortcut ms)
 107:   {
 108:     int key = 0;
 109:     boolean shiftModifier = false;
 110: 
 111:     if (ms != null)
 112:       {
 113:         key = ms.getKey ();
 114:         shiftModifier = ms.usesShiftModifier ();
 115:       }
 116: 
 117:     addItem (item, key, shiftModifier);
 118:   }
 119: 
 120:   public native void delItem(int index);
 121: 
 122:   public void addSeparator()
 123:   {
 124:     // FIXME: implement
 125:   }
 126: }