guiserver/java/ListBoxWidget.java

   1 //
   2 //  ListBoxWidget.java
   3 //  guiserver
   4 //
   5 //  Created by Lutz Mueller on 5/15/07.
   6 //
   7 //
   8 //    Copyright (C) 2007 Lutz Mueller
   9 //
  10 //    This program is free software: you can redistribute it and/or modify
  11 //    it under the terms of the GNU General Public License as published by
  12 //    the Free Software Foundation, either version 3 of the License, or
  13 //    (at your option) any later version.
  14 //
  15 //    This program is distributed in the hope that it will be useful,
  16 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 //    GNU General Public License for more details.
  19 //
  20 //    You should have received a copy of the GNU General Public License
  21 //    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 //
  23
  24
  25 import java.awt.*;
  26 import java.awt.event.*;
  27 import javax.swing.*;
  28 import javax.swing.event.*;
  29 import java.util.*;
  30
  31
  32 @SuppressWarnings("unchecked")
  33 public class ListBoxWidget extends gsObject {
  34
  35 JList list = null;
  36 JScrollPane scrollpane;
  37 DefaultListModel listModel;
  38
  39 public ListBoxWidget(StringTokenizer params)
  40         {
  41         scrollpane = new JScrollPane();
  42         component = scrollpane;
  43         container = scrollpane;
  44
  45         id = params.nextToken();
  46         action = params.nextToken();
  47
  48         listModel = new DefaultListModel();
  49         while(params.hasMoreTokens())
  50                 listModel.addElement(Base64Coder.decodeString(params.nextToken()));
  51
  52         list = new JList(listModel);
  53         jcomponent = list;
  54         scrollpane.getViewport().setView(list);
  55
  56         list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
  57     list.setSelectedIndex(0);
  58
  59         gsObject.widgets.put(id, this);
  60
  61
  62         KeyListener keyListener = new KeyAdapter() {
  63                 public void keyTyped(KeyEvent e)
  64                         {
  65                         int index = list.getSelectedIndex();
  66                         String item = Base64Coder.encodeString((String)list.getSelectedValue());
  67                         guiserver.out.println("(" + action + " \"" + id + "\" " + index + " \"" + item + "\")");
  68                         guiserver.out.flush();
  69                         }
  70                 };
  71
  72         MouseListener mouseListener = new MouseAdapter() {
  73      public void mouseClicked(MouseEvent e)
  74                 {
  75                 int clickCount = e.getClickCount();
  76                 int index = list.locationToIndex(e.getPoint());
  77
  78                 if(action != null)
  79                         {
  80                         try {
  81                                 String item = Base64Coder.encodeString((String)listModel.getElementAt(index));
  82                                 guiserver.out.println("(" + action + " \"" + id + "\" " + index + " \"" + item + "\" " + clickCount + ")");
  83                                 guiserver.out.flush();
  84                                 } catch (Exception exc) { }
  85                         }
  86
  87                 if(mouseEvent != null)
  88                         {
  89                         mouseEventOut(e, "clicked");
  90                         }
  91                 }
  92
  93         public void mousePressed(MouseEvent e)
  94                 {
  95                 if(mouseEvent != null) mouseEventOut(e, "pressed");
  96                 }
  97
  98         public void mouseReleased(MouseEvent e)
  99                 {
 100                 if(mouseEvent != null) mouseEventOut(e, "released");
 101                 }
 102
 103         };
 104
 105         list.addMouseListener(mouseListener);
 106         list.addKeyListener(keyListener);
 107         }
 108
 109 public void addListItem(StringTokenizer tokens)
 110         {
 111         while(tokens.hasMoreTokens())
 112                 {
 113                 String item = Base64Coder.decodeString(tokens.nextToken());
 114                 listModel.addElement(item);
 115                 }
 116         }
 117
 118 public void removeListItem(StringTokenizer tokens)
 119         {
 120         int index = 0;
 121
 122         while(tokens.hasMoreTokens())
 123                 {
 124                 index = Integer.parseInt(tokens.nextToken());
 125                 if(index > (listModel.size() - 1)) index = listModel.size() - 1;
 126                 if(index < 0) index = 0;
 127                 listModel.remove(index);
 128                 }
 129         }
 130
 131 public void clearList(StringTokenizer tokens)
 132         {
 133         while(listModel.size() > 0)
 134                 listModel.remove(0);
 135         }
 136
 137 public void insertListItem(StringTokenizer tokens)
 138         {
 139         int index = 0;
 140         String text;
 141
 142         while(tokens.hasMoreTokens())
 143                 {
 144                 text = Base64Coder.decodeString(tokens.nextToken());
 145                 index = Integer.parseInt(tokens.nextToken());
 146                 if(index > (listModel.size() - 1)) index = listModel.size() - 1;
 147                 if(index < 0) index = 0;
 148                 listModel.insertElementAt(text, index);
 149                 }
 150         }
 151
 152
 153 public void selectListItem(StringTokenizer tokens)
 154         {
 155         String item = Base64Coder.decodeString(tokens.nextToken());
 156         Boolean flag = false;
 157
 158         if(tokens.hasMoreTokens())
 159                 flag = tokens.nextToken().equals("true");
 160
 161         list.setSelectedValue(item, flag);
 162         }
 163
 164
 165 public void scrollDown()
 166     {
 167         JScrollBar vbar = scrollpane.getVerticalScrollBar();
 168     vbar.setValue(vbar.getMinimum());
 169     }
 170
 171 public void registerMouseEvent(StringTokenizer tokens)
 172         {
 173         mouseEvent = tokens.nextToken();
 174         }
 175
 176 private void mouseEventOut(MouseEvent e, String type)
 177         {
 178         guiserver.out.println("(" + mouseEvent + " \"" + id + "\" \"" + type + "\" " + e.getX() + " " + e.getY() + " " +
 179                 e.getButton() + " " + e.getClickCount() + " " + e.getModifiers() + ")");
 180         guiserver.out.flush();
 181         }
 182
 183 }
 184
 185
 186 // eof //