vectorpanel.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.widget;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.util.ArrayList;

import javax.swing.JPanel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import com.jme.math.Vector3f;

public class VectorPanel extends JPanel
    implements ChangeListener {

    private static final long serialVersionUID = 1L;
    
    private ValuePanel xPanel, yPanel, zPanel;
    private ArrayList<ChangeListener> changeListeners =
        new ArrayList<ChangeListener>();
    private boolean setting;
    
    public VectorPanel(float min, float max, float step) {
        super(new GridBagLayout());
        
        xPanel = new ValuePanel("X: ", "", min, max, step);
        xPanel.addChangeListener(this);
        
        yPanel = new ValuePanel("Y: ", "", min, max, step);
        yPanel.addChangeListener(this);
        
        zPanel = new ValuePanel("Z: ", "", min, max, step);
        zPanel.addChangeListener(this);
        
        add(xPanel, new GridBagConstraints(0, 0, 1, 1, 1.0, 0.0,
            GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
            new Insets(5, 5, 5, 5), 0, 0));
        add(yPanel, new GridBagConstraints(0, 1, 1, 1, 1.0, 0.0,
            GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
            new Insets(5, 5, 5, 5), 0, 0));
        add(zPanel, new GridBagConstraints(0, 2, 1, 1, 1.0, 0.0,
            GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL,
            new Insets(5, 5, 5, 5), 0, 0));
    }
    
    public void setValue(Vector3f value) {
        setting = true;
        xPanel.setValue(value.x);
        yPanel.setValue(value.y);
        zPanel.setValue(value.z);
        setting = false;
    }
    
    public Vector3f getValue() {
        return new Vector3f(xPanel.getFloatValue(), yPanel.getFloatValue(),
            zPanel.getFloatValue());
    }
    
    public void addChangeListener(ChangeListener l) {
        changeListeners.add(l);
    }
    
    public void stateChanged(ChangeEvent e) {
        if (!setting) {
            for (ChangeListener l : changeListeners) {
                l.stateChanged(e);
            }
        }
    }
}