source: fedd/abac-src/atnvis/src/com/algomagic/atn/ControlPanel.java @ 8780cbec

package com.algomagic.atn;

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;


public class ControlPanel 
    extends JPanel 
    implements ActionListener, VisualizationConstants
{

    JButton _play, _pause, _stepForward, _stepBack, _rewind, _fastForward, _stop;
    InternalObservable _observable;
    Visualization _vis;


    public ControlPanel( Properties properties, Visualization vis ) {
        super( );

        _vis = vis;
        _observable = new InternalObservable( );
        Class clazz = this.getClass( );

        _play = new JButton( new ImageIcon( clazz.getResource( "/resources/Play24.gif" ), "play" ) );
        _play.setActionCommand( "play" );
        _play.addActionListener( this );
        _play.setEnabled( true );

        _pause = new JButton( new ImageIcon( clazz.getResource( "/resources/Pause24.gif" ), "pause" ) );
        _pause.setActionCommand( "pause" );
        _pause.addActionListener( this );
        _pause.setEnabled( false );

        _stepForward = new JButton( new ImageIcon( clazz.getResource( "/resources/StepForward24.gif" ), "step forward" ) );
        _stepForward.setActionCommand( "stepf" );
        _stepForward.addActionListener( this );
        _stepForward.setEnabled( true );
        _stepForward.setMnemonic( 70 );


        _stepBack = new JButton( new ImageIcon( clazz.getResource( "/resources/StepBack24.gif" ), "step back" ) );
        _stepBack.setActionCommand( "stepb" );
        _stepBack.addActionListener( this );
        _stepBack.setEnabled( true );
        _stepBack.setMnemonic( 66 );


        _rewind = new JButton( new ImageIcon( clazz.getResource( "/resources/Rewind24.gif" ), "rewind" ) );
        _rewind.setActionCommand( "rewind" );
        _rewind.addActionListener( this );
        _rewind.setEnabled( true );
        


        _fastForward = new JButton( new ImageIcon( clazz.getResource( "/resources/FastForward24.gif" ), "fast forward" ) );
        _fastForward.setActionCommand( "ff" );
        _fastForward.addActionListener( this );
        _fastForward.setEnabled( true );


        setStyle( _play );
        setStyle( _pause );
        setStyle( _stepForward );
        setStyle( _stepBack );
        setStyle( _rewind );
        setStyle( _fastForward );

        setLayout( new BoxLayout( this, BoxLayout.X_AXIS ) );
        add( _rewind );
        add( _stepBack );
        add( _play );
        add( _pause );
        add( _stepForward );
        add( _fastForward );

        JCheckBox loop = 
            new JCheckBox( "loop", (new Boolean( properties.getProperty( LOOP_PROP, LOOP_DEFAULT ) )).booleanValue( ) );

        loop.addItemListener( new ItemListener( ) {
                public void itemStateChanged( ItemEvent e ) {
                    int s = e.getStateChange( );
                    Boolean state = Boolean.TRUE;

                    if( s == ItemEvent.DESELECTED ) {
                        state = Boolean.FALSE;
                    }
                        
                    _observable.notify( state );

                }
            } );


        add( Box.createHorizontalStrut( 10 ) );
        add( loop );


        JCheckBox raise = 
            new JCheckBox( "auto raise", true );
        raise.addItemListener( new ItemListener( ) {

                public void itemStateChanged( ItemEvent e ) {
                    int s = e.getStateChange( );
                    boolean state = true;

                    if( s == ItemEvent.DESELECTED ) {
                        state = false;
                    }
                    
                    _vis.setAutoRaise( state );
                }



            } );


        add( Box.createHorizontalStrut( 10 ) );
        add( raise );



        JSpinner spinner = 
            new JSpinner( new SpinnerNumberModel( Integer.parseInt( properties.getProperty( DELAY_PROP, DELAY_DEFAULT ) ), 
                                                  0, 
                                                  5000, 
                                                  100 ) );


        JLabel spinnerLabel = new JLabel( "delay (msec)" );

        spinner.addChangeListener( new ChangeListener( ) {
                public void stateChanged( ChangeEvent e ) {
                    _observable.notify( e.getSource( ) );
                }
            } );


        add( spinner );
        add( Box.createHorizontalStrut( 5 ) );
        add( spinnerLabel );


        PanelHelper.setBorder( this, "Controls" );
    }


    public void addObserver( Observer o ) {
        _observable.addObserver( o );
    }


    private void setStyle( JButton b ) {
        b.setMinimumSize( new Dimension( 24, 24 ) );
        b.setMaximumSize( new Dimension( 24, 24 ) );
        b.setPreferredSize( new Dimension( 24, 24 ) );
            
        b.setBorderPainted( false );
    }

    public void actionPerformed( ActionEvent e ) {
        String cmd = e.getActionCommand( );
        if( cmd.equals( "play" ) ) {
            _stepForward.setEnabled( false );
            _stepBack.setEnabled( false );
            _rewind.setEnabled( false );
            _fastForward.setEnabled( false );
            _play.setEnabled( false );
            _pause.setEnabled( true );
        }

        else if( cmd.equals( "pause" ) ) {
            _stepForward.setEnabled( true );
            _stepBack.setEnabled( true );
            _rewind.setEnabled( true );
            _fastForward.setEnabled( true );
            _play.setEnabled( true );
            _pause.setEnabled( false );
        }


        _observable.notify( e.getActionCommand( ) );
    }


    private class InternalObservable extends Observable {
        public void notify( Object arg ) {
            setChanged( );
            notifyObservers( arg );
        }
    }

}