package org.drools.examples.conway.ui;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.StringTokenizer;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import org.drools.examples.conway.AbstractRunConway;
import org.drools.examples.conway.CellGrid;
import org.drools.examples.conway.CellGridImpl;
import org.drools.examples.conway.ConwayApplicationProperties;
import org.drools.examples.conway.patterns.ConwayPattern;
import com.jgoodies.forms.builder.PanelBuilder;
import com.jgoodies.forms.factories.ButtonBarFactory;
import com.jgoodies.forms.layout.CellConstraints;
import com.jgoodies.forms.layout.FormLayout;
import foxtrot.Job;
import foxtrot.Worker;
/**
* @author <a href="mailto:brown_j@ociweb.com">Jeff Brown</a>
*/
public class ConwayGUI extends JPanel {
private static final long serialVersionUID = 1L;
private final JButton nextGenerationButton;
private final JButton startStopButton;
private final JButton clearButton;
private final JComboBox patternSelector = new JComboBox();
private final Timer timer;
private final CellGrid grid;
public ConwayGUI(final int executionControl) {
super( new BorderLayout() );
final String nextGenerationLabel = ConwayApplicationProperties.getProperty( "next.generation.label" );
this.nextGenerationButton = new JButton( nextGenerationLabel );
final String startLabel = ConwayApplicationProperties.getProperty( "start.label" );
this.startStopButton = new JButton( startLabel );
final String clearLabel = ConwayApplicationProperties.getProperty( "clear.label" );
this.clearButton = new JButton( clearLabel );
//this.grid = new CellGridAgendaGroup( 30, 30 );
this.grid = new CellGridImpl( 30, 30, executionControl );
final CellGridCanvas canvas = new CellGridCanvas( grid );
final JPanel panel = new JPanel( new BorderLayout() );
panel.add( BorderLayout.CENTER,
canvas );
final Border etchedBorder = BorderFactory.createEtchedBorder( EtchedBorder.LOWERED );
final Border outerBlankBorder = BorderFactory.createEmptyBorder( 5,
5,
5,
5 );
final Border innerBlankBorder = BorderFactory.createEmptyBorder( 5,
5,
5,
5 );
final Border border = BorderFactory.createCompoundBorder( BorderFactory.createCompoundBorder( outerBlankBorder,
etchedBorder ),
innerBlankBorder );
panel.setBorder( border );
add( BorderLayout.CENTER,
panel );
add( BorderLayout.EAST,
createControlPanel() );
this.nextGenerationButton.addActionListener( new ActionListener() {
public void actionPerformed(final ActionEvent e) {
Worker.post( new Job() {
public Object run() {
grid.nextGeneration();
return null;
}
} );
canvas.repaint();
}
} );
this.clearButton.addActionListener( new ActionListener() {
public void actionPerformed(final ActionEvent e) {
Worker.post( new Job() {
public Object run() {
grid.killAll();
return null;
}
} );
canvas.repaint();
}
} );
final ActionListener timerAction = new ActionListener() {
public void actionPerformed(ActionEvent ae) {
Worker.post( new Job() {
public Object run() {
if ( !grid.nextGeneration() ) {
stopTimer();
}
return null;
}
} );
canvas.repaint();
}
};
this.timer = new Timer( 500,
timerAction );
this.startStopButton.addActionListener( new ActionListener() {
public void actionPerformed(final ActionEvent e) {
if ( ConwayGUI.this.timer.isRunning() ) {
stopTimer();
} else {
startTimer();
}
}
} );
populatePatternSelector();
this.patternSelector.addActionListener( new ActionListener() {
public void actionPerformed(final ActionEvent e) {
final ConwayPattern pattern = (ConwayPattern) ConwayGUI.this.patternSelector.getSelectedItem();
if ( pattern != null ) {
grid.setPattern( pattern );
canvas.repaint();
}
}
} );
this.patternSelector.setSelectedIndex( -1 );
}
public void dispose() {
this.grid.dispose();
}
private void populatePatternSelector() {
final String patternClassNames = ConwayApplicationProperties.getProperty( "conway.pattern.classnames" );
final StringTokenizer tokenizer = new StringTokenizer( patternClassNames );
String className = null;
while ( tokenizer.hasMoreTokens() ) {
className = tokenizer.nextToken().trim();
try {
final Class<?> clazz = Class.forName( className );
if ( ConwayPattern.class.isAssignableFrom( clazz ) ) {
this.patternSelector.addItem( clazz.newInstance() );
} else {
System.err.println( "Invalid pattern class name: " + className );
}
} catch ( final Exception e ) {
System.err.println( "An error occurred populating patterns: " );
e.printStackTrace();
}
}
}
private void startTimer() {
final String stopLabel = ConwayApplicationProperties.getProperty( "stop.label" );
this.startStopButton.setText( stopLabel );
this.nextGenerationButton.setEnabled( false );
this.clearButton.setEnabled( false );
this.patternSelector.setEnabled( false );
this.timer.start();
}
private void stopTimer() {
this.timer.stop();
final String startLabel = ConwayApplicationProperties.getProperty( "start.label" );
this.startStopButton.setText( startLabel );
this.nextGenerationButton.setEnabled( true );
this.clearButton.setEnabled( true );
this.patternSelector.setEnabled( true );
}
private JPanel createControlPanel() {
final FormLayout layout = new FormLayout( "pref, 3dlu, pref, 3dlu:grow",
"pref, 15dlu, pref, 15dlu, pref, 3dlu:grow, pref" );
final PanelBuilder builder = new PanelBuilder( layout );
final CellConstraints cc = new CellConstraints();
final String title = ConwayApplicationProperties.getProperty( "app.title" );
builder.addLabel( title,
cc.xywh( 1,
1,
layout.getColumnCount(),
1 ) );
final String info = ConwayApplicationProperties.getProperty( "app.description" );
builder.addLabel( info,
cc.xywh( 1,
3,
layout.getColumnCount(),
1 ) );
final String patternLabel = ConwayApplicationProperties.getProperty( "pattern.label" );
builder.addLabel( patternLabel,
cc.xy( 1,
5 ) );
builder.add( this.patternSelector,
cc.xy( 3,
5 ) );
final JPanel buttonPanel = ButtonBarFactory.buildLeftAlignedBar( this.nextGenerationButton,
this.startStopButton,
this.clearButton );
builder.add( buttonPanel,
cc.xywh( 1,
7,
layout.getColumnCount(),
1 ) );
final Border etchedBorder = BorderFactory.createEtchedBorder( EtchedBorder.LOWERED );
final Border outerBlankBorder = BorderFactory.createEmptyBorder( 5,
5,
5,
5 );
final Border innerBlankBorder = BorderFactory.createEmptyBorder( 5,
5,
5,
5 );
final Border border = BorderFactory.createCompoundBorder( BorderFactory.createCompoundBorder( outerBlankBorder,
etchedBorder ),
innerBlankBorder );
builder.setBorder( border );
return builder.getPanel();
}
public static void main(final String[] args) {
final ConwayGUI gui = new ConwayGUI( AbstractRunConway.RULEFLOWGROUP );
final String appTitle = ConwayApplicationProperties.getProperty( "app.title" );
final JFrame f = new JFrame( appTitle );
f.setResizable( false );
f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
f.getContentPane().add( BorderLayout.CENTER,
gui );
f.addWindowListener( new WindowAdapter() {
public void windowClosing(WindowEvent we) {
gui.dispose();
}
} );
f.pack();
f.setVisible( true );
}
}