jcpanel.java

非常好的java collapse游戏代码

/*
 * JCollapse - Java Collapse Game
 * Copyright (C) 2005 Erico Gon鏰lves Rimoli
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package sourceforge.net.projects.jcollapse.game.components;

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.LayoutManager;

import javax.swing.JPanel;

/**
 * Panel for JCollapse Game. This Component provide a JPanel with gradient paint
 * @author erico
 */
public class JCPanel extends JPanel {

	private Color m_ColorFrom;
	private Color m_ColorTo;
	
	/**
	 * Default constructor set layout to FlowLayout and
	 * gradient paint to Color.WHITE to Color.BLACK
	 */
	public JCPanel() {
		this( new FlowLayout(), Color.WHITE, Color.BLACK );
	}
	
	/**
	 * Constructor with layout manager and
	 * gradient paint to Color.WHITE to Color.BLACK
	 * @param layoutManager the layout manager
	 */
	public JCPanel( LayoutManager layoutManager ) {
		this( layoutManager, Color.WHITE, Color.BLACK );
	}
	
	/**
	 * Constructor with layout manager and color set
	 * @param layoutManager the layout manager
	 * @param colorFrom the Color from
	 * @param colorTo the Color to
	 */
	public JCPanel( LayoutManager layoutManager, Color colorFrom, Color colorTo ) {
		super( layoutManager );
		setColorFrom( colorFrom );
		setColorTo( colorTo );
	}
	
	/**
	 * Get the Color "from" for gradient fill
	 * @return color the Color object
	 */
	public Color getColorFrom() {
		return m_ColorFrom;
	}
	
	/**
	 * Set the Color "from" for gradient fill
	 * @param color the Color object
	 */
	public void setColorFrom( Color color ) {
		m_ColorFrom = color;
	}
	
	/**
	 * Get the Color "to" for gradient fill
	 * @return color the Color object
	 */
	public Color getColorTo() {
		return m_ColorTo;
	}
	
	/**
	 * Set the Color "to" for gradient fill
	 * @param color the Color object
	 */
	public void setColorTo( Color color ) {
		m_ColorTo = color;
	}
	
	/* (non-Javadoc)
	 * @see java.awt.Component#paint(java.awt.Graphics)
	 */
	public void paint( Graphics g ) {
		Graphics2D g2d = (Graphics2D)g;
		g2d.setPaint(
				new GradientPaint(
						(float)( getWidth() / 2 ),
						0f,
						getColorFrom(),
						(float)( getWidth() / 2 ),
						(float)getHeight(),
						getColorTo()
						)
					);
		g2d.fillRect( 0, 0, getWidth(), getHeight() );
		paintChildren( g );
		paintBorder( g );
	}
}