old-autovect-branch/libjava/classpath/gnu/java/awt/peer/qt/QtListPeer.java

   1 /* QtListPeer.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.Dimension;
  41 import java.awt.List;
  42 import java.awt.event.ActionEvent;
  43 import java.awt.event.ItemEvent;
  44 import java.awt.peer.ListPeer;
  45
  46 public class QtListPeer extends QtComponentPeer implements ListPeer
  47 {
  48   public QtListPeer( QtToolkit kit, List owner )
  49   {
  50     super( kit, owner );
  51   }
  52
  53   public native void init();
  54
  55   protected void setup()
  56   {
  57     super.setup();
  58     List o = (List)owner;
  59     // Multiple selection
  60     setMultipleMode(o.isMultipleMode());
  61     // Add initial list items.
  62     String[] items = o.getItems();
  63     for (int i = 0; i < items.length; i++)
  64       add(items[i], i);
  65
  66     // Initial selections.
  67     int[] selected = o.getSelectedIndexes();
  68     for (int i = 0; i < selected.length; i++)
  69       select(selected[i]);
  70
  71     // If no initial selection, use 0.
  72     if(selected.length == 0 && items.length > 0)
  73       select( 0 );
  74   }
  75
  76   private boolean ignoreNextSelect = false;
  77
  78   /**
  79    * Called back when a row is selected. -1 if no row is selected.
  80    */
  81   private void fireChoice( int index )
  82   {
  83     ignoreNextSelect = true;
  84     if( index == -1)
  85       ((List)owner).deselect( ((List)owner).getSelectedIndex() );
  86       else
  87         {
  88           ((List)owner).select( index );
  89           ItemEvent e = new ItemEvent((List)owner,
  90                                       ItemEvent.ITEM_STATE_CHANGED,
  91                                       ""+index,
  92                                       ItemEvent.SELECTED);
  93           QtToolkit.eventQueue.postEvent(e);
  94         }
  95   }
  96
  97   /**
  98    * Called back when an item is double-clicked.
  99    */
 100   private void itemDoubleClicked( int index, int modifiers )
 101   {
 102     ActionEvent e = new ActionEvent(owner,
 103                                     ActionEvent.ACTION_PERFORMED,
 104                                     ((List)owner).getItem( index ),
 105                                     System.currentTimeMillis(),
 106                                     modifiers);
 107     QtToolkit.eventQueue.postEvent(e);
 108   }
 109
 110   private native void select(int index, boolean selected);
 111
 112   // ************ Public methods *********************
 113
 114   public native void add(String item, int index);
 115
 116   public void addItem(String item, int index)
 117   {
 118     add(item, index);
 119   }
 120
 121   public void clear()
 122   {
 123     removeAll();
 124   }
 125
 126   /**
 127    * Deletes items from the starting index to the ending index (inclusive).
 128    */
 129   public native void delItems(int start_index, int end_index);
 130
 131   public void deselect(int index)
 132   {
 133     if( ignoreNextSelect == true )
 134       ignoreNextSelect = false;
 135     else
 136       select(index, false);
 137   }
 138
 139   public native int[] getSelectedIndexes();
 140
 141   public native void makeVisible(int index);
 142
 143   public Dimension minimumSize(int s)
 144   {
 145     return getMinimumSize(s);
 146   }
 147
 148   public Dimension preferredSize(int s)
 149   {
 150     return getPreferredSize(s);
 151   }
 152
 153   public void removeAll()
 154   {
 155     delItems(0, ((List)owner).getItemCount() - 1);
 156   }
 157
 158   public void select(int index)
 159   {
 160     if( ignoreNextSelect == true )
 161       ignoreNextSelect = false;
 162     else
 163       select(index, true);
 164   }
 165
 166   /**
 167    * Sets multiple-selection mode.
 168    * Note there's a bug in multiple selection in Qt 4.0.0, use 4.0.1.
 169    */
 170   public native void setMultipleMode(boolean multi);
 171
 172   public void setMultipleSelections(boolean multi)
 173   {
 174     setMultipleMode(multi);
 175   }
 176
 177   public Dimension getPreferredSize(int s)
 178   {
 179     // FIXME
 180     return getPreferredSize();
 181   }
 182
 183   public Dimension getMinimumSize(int s)
 184   {
 185     // FIXME
 186     return getMinimumSize();
 187   }
 188 }