/*
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.examples.conway.ui;
import java.awt.BorderLayout;
import java.awt.GridLayout;
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.BoxLayout;
import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
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;
public class ConwayGUI extends JPanel {
private static final long serialVersionUID = 510l;
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) {
grid.nextGeneration();
canvas.repaint();
}
} );
this.clearButton.addActionListener( new ActionListener() {
public void actionPerformed(final ActionEvent e) {
grid.killAll();
canvas.repaint();
}
} );
final ActionListener timerAction = new ActionListener() {
public void actionPerformed(ActionEvent ae) {
if ( !grid.nextGeneration() ) {
stopTimer();
}
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() {
JPanel controlPanel = new JPanel(new BorderLayout());
JPanel formPanel = new JPanel();
GroupLayout formLayout = new GroupLayout(formPanel);
formPanel.setLayout(formLayout);
formLayout.setAutoCreateGaps(true);
formLayout.setAutoCreateContainerGaps(true);
final String title = ConwayApplicationProperties.getProperty( "app.title" );
JLabel titleLabel = new JLabel(title);
final String description = ConwayApplicationProperties.getProperty( "app.description" );
JLabel descriptionLabel = new JLabel(description);
String patternLabelText = ConwayApplicationProperties.getProperty( "pattern.label" );
JLabel patternLabel = new JLabel(patternLabelText);
formLayout.setHorizontalGroup(
formLayout.createParallelGroup()
.addComponent(titleLabel)
.addComponent(descriptionLabel)
.addGroup(formLayout.createSequentialGroup()
.addComponent(patternLabel)
.addComponent(patternSelector))
);
formLayout.setVerticalGroup(
formLayout.createSequentialGroup()
.addComponent(titleLabel)
.addComponent(descriptionLabel)
.addGroup(formLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
.addComponent(patternLabel)
.addComponent(patternSelector))
);
controlPanel.add(formPanel, BorderLayout.NORTH);
JPanel buttonPanel = new JPanel(new GridLayout(1, 3, 5, 5));
buttonPanel.add(this.nextGenerationButton);
buttonPanel.add(this.startStopButton);
buttonPanel.add(this.clearButton);
controlPanel.add(buttonPanel, BorderLayout.SOUTH);
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 );
controlPanel.setBorder( border );
return controlPanel;
}
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 );
}
}