bundles/org.simantics.scenegraph.swing/src/org/simantics/scenegraph/swing/ComboBoxNode.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.scenegraph.swing;\r
  13 \r
  14 import java.awt.Color;\r
  15 import java.awt.Font;\r
  16 import java.awt.Point;\r
  17 import java.awt.event.ActionEvent;\r
  18 import java.awt.event.ActionListener;\r
  19 import java.awt.event.FocusEvent;\r
  20 import java.awt.event.FocusListener;\r
  21 import java.awt.event.KeyEvent;\r
  22 import java.awt.event.KeyListener;\r
  23 import java.awt.geom.Point2D;\r
  24 import java.beans.PropertyChangeEvent;\r
  25 import java.beans.PropertyChangeListener;\r
  26 import java.util.List;\r
  27 \r
  28 import javax.swing.JComboBox;\r
  29 import javax.swing.JPopupMenu;\r
  30 import javax.swing.SwingUtilities;\r
  31 import javax.swing.event.PopupMenuEvent;\r
  32 import javax.swing.event.PopupMenuListener;\r
  33 \r
  34 import org.simantics.scenegraph.utils.DummyComponent;\r
  35 \r
  36 public class ComboBoxNode extends ComponentNode<JComboBox> implements ActionListener, FocusListener, PropertyChangeListener, KeyListener {\r
  37     /**\r
  38      * \r
  39      */\r
  40     private static final long serialVersionUID = 7073028693751719102L;\r
  41 \r
  42     protected boolean editable = true;\r
  43     protected String value = "";\r
  44     protected String tooltip = "";\r
  45     protected double borderWidth = 0;\r
  46 \r
  47     protected transient ActionListener actionListener = null;\r
  48 \r
  49     protected Font font = null;\r
  50     protected Color color = null;\r
  51     protected List<String> items = null;\r
  52     \r
  53     @Override\r
  54     public String toString() {\r
  55         return super.toString() + "[editable=" + editable + ", value=" + value + "]";\r
  56     }\r
  57     \r
  58     @Override\r
  59     public void init() {\r
  60         component = new JComboBox();\r
  61         component.setLightWeightPopupEnabled(true);\r
  62         component.setEditable(editable);\r
  63         component.setEnabled(editable);\r
  64         component.addActionListener(this);\r
  65         component.addFocusListener(this);\r
  66         component.addKeyListener(this);\r
  67         component.addPopupMenuListener(new PopupMenuListener() {\r
  68                         @Override\r
  69                         public void popupMenuCanceled(PopupMenuEvent e) {\r
  70                                 // TODO Auto-generated method stub\r
  71                                 \r
  72                         }\r
  73 \r
  74                         @Override\r
  75                         public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {\r
  76                                 // TODO Auto-generated method stub\r
  77                                 \r
  78                         }\r
  79 \r
  80                         @Override\r
  81                         public void popupMenuWillBecomeVisible(PopupMenuEvent e) {\r
  82                         JComboBox box = (JComboBox) e.getSource();\r
  83                         Object comp = box.getUI().getAccessibleChild(box, 0);\r
  84                         if (!(comp instanceof JPopupMenu)) {\r
  85                           return;\r
  86                         }\r
  87                         /**\r
  88                          * Relocate the popup under the combobox. This is necessary because scenegraph handles combobox rendering, \r
  89                          * thus the real location of the combobox is invalid.\r
  90                          */\r
  91                         JPopupMenu popup = (JPopupMenu) comp;\r
  92                         Point2D p = ComboBoxNode.this.localToControl(new Point2D.Double());\r
  93                         Point loc = new Point((int)p.getX(), (int)p.getY()+component.getHeight());\r
  94                         SwingUtilities.convertPointToScreen(loc, box.getParent());\r
  95                         popup.setLocation((int)loc.getX(), (int)loc.getY());\r
  96                         }\r
  97         });\r
  98         super.init();\r
  99     }\r
 100 \r
 101     @SyncField("items")\r
 102     public void setItems(List<String> items) {\r
 103         this.items = items;\r
 104         component.removeAllItems();\r
 105         for(String str : items) {\r
 106                 component.addItem(str);\r
 107         }\r
 108     }\r
 109 \r
 110     @SyncField("editable")\r
 111     public void setEditable(boolean value) {\r
 112         this.editable = value;\r
 113 \r
 114         if(component != null) {\r
 115             component.setEditable(value);\r
 116             component.setEnabled(value);\r
 117         }\r
 118     }\r
 119 \r
 120     @PropertySetter("Stroke Width")\r
 121     @SyncField("borderWidth")\r
 122     public void setBorderWidth(Float borderWidth) {\r
 123         this.borderWidth = borderWidth;\r
 124 //        if(component != null) {\r
 125 //            ((TextField)component).setBorder(borderWidth);\r
 126 //        }\r
 127     }\r
 128 \r
 129     @SyncField("value")\r
 130     public void setText(String value) {\r
 131         this.value = value;\r
 132         // RemoteViewer does not have component initialized\r
 133         if (component != null) {\r
 134             //System.out.println("MonitorNode.setText(" + value + ")");\r
 135             component.setSelectedItem(value);\r
 136             component.repaint();\r
 137         }\r
 138     }\r
 139 \r
 140     @SyncField("tooltip")\r
 141     public void setToolTipText(String tooltip) {\r
 142         this.tooltip = tooltip;\r
 143         if (component != null) {\r
 144             component.setToolTipText(tooltip);\r
 145         }\r
 146     }\r
 147 \r
 148     @PropertySetter("Font")\r
 149     @SyncField("font")\r
 150     public void setFont(Font font) {\r
 151         this.font = font;\r
 152         if (component != null) {\r
 153             setComponentFont(font);\r
 154         }\r
 155     }\r
 156 \r
 157     @PropertySetter("Color")\r
 158     @SyncField("color")\r
 159     public void setColor(Color color) {\r
 160         this.color = color;\r
 161         if (component != null) {\r
 162             component.setForeground(color);\r
 163         }\r
 164     }\r
 165 \r
 166     public String getText() {\r
 167         return value;\r
 168     }\r
 169 \r
 170     public Font getFont() {\r
 171         return font;\r
 172     }\r
 173 \r
 174     @Override\r
 175     public void propertyChange(PropertyChangeEvent evt) {\r
 176         if("value".equals(evt.getPropertyName()) && component != null) {\r
 177                 component.setSelectedItem(evt.getNewValue());\r
 178             component.repaint();\r
 179         } else if("editable".equals(evt.getPropertyName()) && component != null) {\r
 180             component.setEditable((Boolean)evt.getNewValue());\r
 181             component.setEnabled((Boolean)evt.getNewValue());\r
 182         }\r
 183     }\r
 184 \r
 185 \r
 186     public void setActionListener(ActionListener actionListener) {\r
 187         this.actionListener = actionListener;\r
 188     }\r
 189 \r
 190     @Override\r
 191     public void actionPerformed(ActionEvent e) {\r
 192         loseFocus();\r
 193     }\r
 194 \r
 195     void loseFocus() {\r
 196         if (component != null)\r
 197             if (component.isFocusOwner())\r
 198                 if (container.getParent() != null)\r
 199                     container.getParent().requestFocusInWindow(); // Lose focus\r
 200     }\r
 201 \r
 202     @Override\r
 203     public void focusGained(FocusEvent arg0) {\r
 204     }\r
 205 \r
 206     @Override\r
 207     public void focusLost(FocusEvent arg0) {\r
 208         if (component != null) {\r
 209             ActionEvent e = new ActionEvent(component, ActionEvent.ACTION_PERFORMED, (String) component.getSelectedItem());\r
 210             performAction(e);\r
 211         }\r
 212     }\r
 213 \r
 214     /**\r
 215      * Wrapper method to send event to serverside\r
 216      * \r
 217      * @param e\r
 218      */\r
 219     @ServerSide\r
 220     public void performAction(ActionEvent e) {\r
 221         if (actionListener != null) {\r
 222             //System.out.println("MonitorNode.performAction(" + e + ")");\r
 223             actionListener.actionPerformed(e);\r
 224         }\r
 225     }\r
 226 \r
 227     @Override\r
 228     public void keyPressed(KeyEvent e) {\r
 229     }\r
 230 \r
 231     @Override\r
 232     public void keyTyped(KeyEvent e) {\r
 233     }\r
 234 \r
 235     @Override\r
 236     public void keyReleased(KeyEvent e) {\r
 237         if (e.getModifiers() == 0 && e.getKeyCode() == KeyEvent.VK_ESCAPE) {\r
 238             // ESC without modifiers == CANCEL edit\r
 239             // TODO: signal about cancellation\r
 240             loseFocus();\r
 241         }\r
 242     }\r
 243 \r
 244     /**\r
 245      * Quick hack to test widget feature..\r
 246      * FIXME: Use existing methods or variables..\r
 247      * \r
 248      * @param input\r
 249      */\r
 250     public void input(String input) {\r
 251         ActionEvent e = new ActionEvent(new DummyComponent(), ActionEvent.ACTION_PERFORMED, input);\r
 252         performAction(e);\r
 253     }\r
 254 }\r