particleworldpanel.java

java 3d game jme 工程开发源代码

/*
 * Copyright (c) 2003-2009 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software 
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jmex.editors.swing.particles;

import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import com.jmex.editors.swing.widget.ValuePanel;
import com.jmex.effects.particles.ParticleSystem;

public class ParticleWorldPanel extends ParticleEditPanel {

    private static final long serialVersionUID = 1L;
    
    private JLabel countLabel;
    private ValuePanel speedPanel = new ValuePanel("Time Modifier: ", "x", 0f,
            Float.MAX_VALUE, 0.01f);
    private ValuePanel precisionPanel = new ValuePanel("Precision: ", "s", 0f,
            Float.MAX_VALUE, 0.001f);
    private JComboBox renderQueueCB;

    public ParticleWorldPanel() {
        super();
        setLayout(new GridBagLayout());
        initPanel();
    }

    private void initPanel() {
        countLabel = createBoldLabel("Particles: 300");
        JButton countButton = new JButton(new AbstractAction("Change...") {
            private static final long serialVersionUID = 1L;

            public void actionPerformed(ActionEvent e) {
                countButton_actionPerformed(e);
            }
        });
        countButton.setFont(new Font("Arial", Font.BOLD, 12));
        countButton.setMargin(new Insets(2, 2, 2, 2));

        JPanel countPanel = new JPanel(new GridBagLayout());
        countPanel.setBorder(createTitledBorder("PARTICLE COUNT"));
        countPanel.add(countLabel, new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0,
                GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(
                        5, 10, 5, 10), 0, 0));
        countPanel.add(countButton, new GridBagConstraints(1, 0, 1, 1, 0.0,
                0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
                new Insets(5, 10, 5, 10), 0, 0));

        speedPanel.setBorder(createTitledBorder("TIME"));
        speedPanel.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                getEdittedParticles().getParticleController().setSpeed(
                    speedPanel.getFloatValue());
            }
        });

        precisionPanel.setBorder(createTitledBorder("UPDATE PRECISION"));
        precisionPanel.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                getEdittedParticles().getParticleController().setPrecision(
                        precisionPanel.getFloatValue());
            }
        });

        final JLabel queueLabel = createBoldLabel("Render Queue:");

        renderQueueCB = new JComboBox(new String[] {"INHERIT", "SKIP", "OPAQUE", "TRANSPARENT", "ORTHO"});
        renderQueueCB.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                getEdittedParticles().setRenderQueueMode(renderQueueCB.getSelectedIndex());
            }
        });
        final JPanel queuePanel = new JPanel(new GridBagLayout());
        queuePanel.setBorder(createTitledBorder("RENDER QUEUE"));
        queuePanel.add(queueLabel, new GridBagConstraints(0, 0, 1, 1, 0.0,
                0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
                new Insets(5, 5, 5, 5), 0, 0));
        queuePanel.add(renderQueueCB, new GridBagConstraints(1, 0, 1, 1, 0.0,
                0.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
                new Insets(5, 5, 5, 5), 0, 0));
        
        add(countPanel, new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0,
                GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
                new Insets(5, 5, 5, 10), 0, 0));
        add(speedPanel, new GridBagConstraints(0, 1, 1, 1, 1.0, 0.0,
                GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
                new Insets(10, 10, 5, 5), 0, 0));
        add(precisionPanel, new GridBagConstraints(0, 2, 1, 1, 1.0, 0.0,
                GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
                new Insets(10, 10, 5, 5), 0, 0));
        add(queuePanel, new GridBagConstraints(0, 3, 1, 1, 1.0, 1.0,
                GridBagConstraints.NORTH, GridBagConstraints.HORIZONTAL,
                new Insets(5, 10, 5, 5), 0, 0));
    }
    
    /**
     * updateCountLabels
     */
    private void updateCountLabels() {
        int val = getEdittedParticles().getNumParticles();
        countLabel.setText("Particles: " + val);
    }

    @Override
    public void updateWidgets() {
        updateCountLabels();
        speedPanel.setValue(getEdittedParticles().getParticleController().getSpeed());
        precisionPanel.setValue(getEdittedParticles().getParticleController().getPrecision());
        ParticleSystem system = getEdittedParticles();
        renderQueueCB.setSelectedIndex(system.getRenderQueueMode());
    }
    
    private void countButton_actionPerformed(ActionEvent e) {
        String response = JOptionPane.showInputDialog(this,
                "Please enter a new particle count for this system:",
                "How many particles?", JOptionPane.PLAIN_MESSAGE);
        if (response == null)
            return;
        int particles = 100;
        try {
            particles = Integer.parseInt(response);
        } catch (NumberFormatException ex) {
            JOptionPane.showMessageDialog(this,
                    "Invalid number entered.  Using 100 instead.", "Invalid",
                    JOptionPane.WARNING_MESSAGE);
            particles = 100;
        }
        getEdittedParticles().recreate(particles);
        updateCountLabels();
        validate();
    }
}