Source code: com/virtuosotechnologies/lib/basiccommand/builder/SwingButtonUpdater.java

   /*
   ================================================================================
   
     FILE:  SwingButtonUpdater.java
     
     PROJECT:
     
       Virtuoso Utilities
     
    CONTENTS:
    
      Utility that updates a swing AbstractButton
    
    PROGRAMMERS:
    
      Daniel Azuma (DA)  <dazuma@kagi.com>
    
    COPYRIGHT:
    
      Copyright (C) 2003  Daniel Azuma  (dazuma@kagi.com)
      
      This program is free software; you can redistribute it and/or
      modify it under the terms of the GNU General Public License as
      published by the Free Software Foundation; either version 2
      of the License, or (at your option) any later version.
      
      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      GNU General Public License for more details.
      
      You should have received a copy of the GNU General Public
      License along with this program; if not, write to
        Free Software Foundation, Inc.
        59 Temple Place, Suite 330
        Boston, MA 02111-1307 USA
  
  ================================================================================
  */
  
  
  package com.virtuosotechnologies.lib.basiccommand.builder;
  
  
  import javax.swing.AbstractButton;
  import javax.swing.Icon;
  import javax.swing.JMenu;
  import javax.swing.JMenuItem;
  import javax.swing.KeyStroke;
  
  import com.virtuosotechnologies.lib.basiccommand.BasicCommandNode;
  import com.virtuosotechnologies.lib.propertyset.PropertySet;
  import com.virtuosotechnologies.lib.propertyset.PropertySetEvent;
  import com.virtuosotechnologies.lib.util.ObjectUtils;
  
  
  /**
   * Utility that updates a swing AbstractButton
   */
  public class SwingButtonUpdater
  {
    private AbstractButton button_;
    
    
    /**
     * Constructor
     */
    public SwingButtonUpdater(
      AbstractButton button)
    {
      button_ = button;
    }
    
    
    private void syncSelectedName(
      PropertySet properties)
    {
      String text = (String)properties.getValue(BasicCommandNode.SELECTED_NAME_PROPERTY);
      if (text == null)
      {
        text = (String)properties.getValue(BasicCommandNode.NAME_PROPERTY);
      }
      button_.setText(text);
    }
    
    
    private void syncSelectedIcon(
      PropertySet properties)
    {
      Icon icon = (Icon)properties.getValue(BasicCommandNode.SELECTED_SMALL_ICON_PROPERTY);
      if (icon == null)
      {
        icon = (Icon)properties.getValue(BasicCommandNode.SMALL_ICON_PROPERTY);
      }
      button_.setIcon(icon);
    }
    
    
    private void syncSelectedToolTip(
     PropertySet properties)
   {
     String text = (String)properties.getValue(BasicCommandNode.SELECTED_SHORT_DESCRIPTION_PROPERTY);
     if (text == null)
     {
       text = (String)properties.getValue(BasicCommandNode.SHORT_DESCRIPTION_PROPERTY);
     }
     button_.setToolTipText(text);
   }
   
   
   private void updateSelectionState(
     PropertySet properties)
   {
     boolean isSelected = ObjectUtils.safeEquals(
       Boolean.TRUE, properties.getValue(BasicCommandNode.SELECTION_STATE_PROPERTY));
     button_.setSelected(isSelected);
     if (isSelected)
     {
       syncSelectedName(properties);
       syncSelectedIcon(properties);
       syncSelectedToolTip(properties);
     }
     else
     {
       button_.setText((String)
         properties.getValue(BasicCommandNode.NAME_PROPERTY));
       button_.setIcon((Icon)
         properties.getValue(BasicCommandNode.SMALL_ICON_PROPERTY));
       button_.setToolTipText((String)
         properties.getValue(BasicCommandNode.SHORT_DESCRIPTION_PROPERTY));
     }
   }
   
   
   /**
    * Update now
    */
   public void updateAll(
     PropertySet properties)
   {
     updateSelectionState(properties);
     Integer i = (Integer)properties.getValue(BasicCommandNode.MNEMONIC_CODE_PROPERTY);
     if (i != null)
     {
       button_.setMnemonic(i.intValue());
     }
     if (button_ instanceof JMenuItem && !(button_ instanceof JMenu))
     {
       ((JMenuItem)button_).setAccelerator((KeyStroke)
         properties.getValue(BasicCommandNode.ACCELERATOR_KEYSTROKE_PROPERTY));
     }
   }
   
   
   /**
    * Update now
    */
   public void updateIncremental(
     PropertySetEvent ev)
   {
     PropertySet properties = ev.getPropertySet();
     if (ev.getKey().equals(BasicCommandNode.MNEMONIC_CODE_PROPERTY))
     {
       if (ev.getNewValue() != null)
       {
         button_.setMnemonic(((Integer)ev.getNewValue()).intValue());
       }
     }
     else if (ev.getKey().equals(BasicCommandNode.ACCELERATOR_KEYSTROKE_PROPERTY))
     {
       if (button_ instanceof JMenuItem && !(button_ instanceof JMenu))
       {
         ((JMenuItem)button_).setAccelerator((KeyStroke)ev.getNewValue());
       }
     }
     else if (ev.getKey().equals(BasicCommandNode.SELECTION_STATE_PROPERTY))
     {
       updateSelectionState(properties);
     }
     else
     {
       boolean isSelected = ObjectUtils.safeEquals(Boolean.TRUE,
         properties.getValue(BasicCommandNode.SELECTION_STATE_PROPERTY));
       if (isSelected)
       {
         if (ev.getKey().equals(BasicCommandNode.SELECTED_NAME_PROPERTY) ||
           ev.getKey().equals(BasicCommandNode.NAME_PROPERTY))
         {
           syncSelectedName(properties);
         }
         else if (ev.getKey().equals(BasicCommandNode.SELECTED_SMALL_ICON_PROPERTY) ||
           ev.getKey().equals(BasicCommandNode.SMALL_ICON_PROPERTY))
         {
           syncSelectedIcon(properties);
         }
         else if (ev.getKey().equals(BasicCommandNode.SELECTED_SHORT_DESCRIPTION_PROPERTY) ||
           ev.getKey().equals(BasicCommandNode.SHORT_DESCRIPTION_PROPERTY))
         {
           syncSelectedToolTip(properties);
         }
       }
       else
       {
         if (ev.getKey().equals(BasicCommandNode.NAME_PROPERTY))
         {
           button_.setText((String)ev.getNewValue());
         }
         else if (ev.getKey().equals(BasicCommandNode.SMALL_ICON_PROPERTY))
         {
           button_.setIcon((Icon)ev.getNewValue());
         }
         else if (ev.getKey().equals(BasicCommandNode.SHORT_DESCRIPTION_PROPERTY))
         {
           button_.setToolTipText((String)ev.getNewValue());
         }
       }
     }
   }
 }