gradientpainttransformer.java

来自「JfreeChart 常用图表例子」· Java 代码 · 共 63 行

/* ========================================================================
 * JCommon : a free general purpose class library for the Java(tm) platform
 * ========================================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 * 
 * Project Info:  http://www.jfree.org/jcommon/index.html
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
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 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 * 
 * -----------------------------
 * GradientPaintTransformer.java
 * -----------------------------
 * (C) Copyright 2003, 2004, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: GradientPaintTransformer.java,v 1.2 2005/06/01 14:12:29 taqua Exp $
 *
 * Changes
 * -------
 * 28-Oct-2003 : Version 1 (DG);
 * 
 */
 
package org.jfree.ui;

import java.awt.GradientPaint;
import java.awt.Shape;

/**
 * The interface for a class that can transform a <code>GradientPaint</code> in some way.
 * 
 * @author David Gilbert
 */
public interface GradientPaintTransformer {
    
    /**
     * Transforms a <code>GradientPaint</code> instance to "fit" some target shape.
     * 
     * @param paint  the original paint.
     * @param target  the reference area.
     * 
     * @return A transformed paint.
     */
    public GradientPaint transform(GradientPaint paint, Shape target);

}