src/java/org/tsho/dmc2/ui/components/DmcMenuItem.java

   1 /*
   2  * iDMC the interactive Dynamical Model Calculator simulates and performs
   3  * graphical and numerical analysis of systems of differential and
   4  * difference equations.
   5  *
   6  * Copyright (C) 2004 Marji Lines and Alfredo Medio.
   7  *
   8  * Written by Daniele Pizzoni <auouo@tin.it>.
   9  *
  10  *
  11  * The software program was developed within a research project financed
  12  * by the Italian Ministry of Universities, the Universities of Udine and
  13  * Ca'Foscari of Venice, the Friuli-Venezia Giulia Region.
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or any
  18  * later version.
  19  *
  20  * This program is distributed in the hope that it will be useful, but
  21  * WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  23  * General Public License for more details.
  24  */
  25 package org.tsho.dmc2.ui.components;
  26
  27 import java.beans.PropertyChangeEvent;
  28 import java.beans.PropertyChangeListener;
  29
  30 import javax.swing.Action;
  31 import javax.swing.JMenuItem;
  32
  33 import org.tsho.dmc2.ui.AbstractPlotFrame;
  34
  35 /**
  36  * This adds visibility support by actions
  37  *
  38  */
  39 // TODO is there a way to do the same thing in a simpler way??
  40 public class DmcMenuItem extends JMenuItem {
  41
  42     public DmcMenuItem(final DmcAction a) {
  43         super(a);
  44     }
  45
  46     protected void configurePropertiesFromAction(final Action a) {
  47         super.configurePropertiesFromAction(a);
  48
  49         setVisible(((DmcAction) a).isVisible());
  50     }
  51
  52     protected PropertyChangeListener createActionPropertyChangeListener(
  53             final Action a) {
  54
  55         return new MyPropertyChangeListener(
  56                 super.createActionPropertyChangeListener(a));
  57     }
  58
  59     final class MyPropertyChangeListener implements PropertyChangeListener {
  60         PropertyChangeListener superListener;
  61         private MyPropertyChangeListener(PropertyChangeListener l) {
  62             superListener = l;
  63         }
  64
  65         public void propertyChange(PropertyChangeEvent evt) {
  66
  67             if (evt.getPropertyName().equals(
  68                     DmcAction.VISIBILITY_KEY)) {
  69                DmcMenuItem.this.setVisible(((Boolean) evt.getNewValue()).booleanValue());
  70             }
  71             superListener.propertyChange(evt);
  72         }
  73     }
  74 }