backgroundpainterstrategy.java~1~

具有不同语法高亮的编辑器实例

/*
 * 01/22/2005
 *
 * BackgroundPainterStrategy.java - Renders an RTextAreaBase's background
 * using some strategy.
 * Copyright (C) 2005 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * 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 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.ui.rtextarea;

import java.awt.Graphics;
import java.awt.Rectangle;


/**
 * Interface for classes that paint the background of an
 * <code>RTextAreaBase</code>.  The Strategy pattern is used for this
 * object because the background can be painted as a solid color, as
 * an image, and possibly other ways (gradients, animated images, etc.).
 * When a method to change the background of an <code>RTextAreaBase</code>
 * instance is called (such as <code>setBackground</code>,
 * <code>setBackgroundImage</code> or <code>setBackgoundObject</code>),
 * the correct strategy is then created and used to paint its background.
 *
 * @author Robert Futrell
 * @version 0.1
 * @see org.fife.ui.rtextarea.ImageBackgroundPainterStrategy
 * @see org.fife.ui.rtextarea.ColorBackgroundPainterStrategy
 */
public interface BackgroundPainterStrategy {


/*****************************************************************************/


	/**
	 * Paints the background.
	 *
	 * @param g The graphics context.
	 * @param bounds The bounds of the object whose backgrouns we're
	 *               painting.
	 */
	public void paint(Graphics g, Rectangle bounds);


/*****************************************************************************/

}