Source for org.jfree.ui.GradientPaintTransformer

   1: /* ========================================================================
   2:  * JCommon : a free general purpose class library for the Java(tm) platform
   3:  * ========================================================================
   4:  *
   5:  * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
   6:  * 
   7:  * Project Info:  http://www.jfree.org/jcommon/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  * 
  27:  * -----------------------------
  28:  * GradientPaintTransformer.java
  29:  * -----------------------------
  30:  * (C) Copyright 2003-2007, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   -;
  34:  *
  35:  * $Id: GradientPaintTransformer.java,v 1.4 2007/04/03 12:34:13 mungady Exp $
  36:  *
  37:  * Changes
  38:  * -------
  39:  * 28-Oct-2003 : Version 1 (DG);
  40:  * 
  41:  */
  42:  
  43: package org.jfree.ui;
  44: 
  45: import java.awt.GradientPaint;
  46: import java.awt.Shape;
  47: 
  48: /**
  49:  * The interface for a class that can transform a <code>GradientPaint</code> to
  50:  * fit an arbitrary shape.
  51:  * 
  52:  * @author David Gilbert
  53:  */
  54: public interface GradientPaintTransformer {
  55:     
  56:     /**
  57:      * Transforms a <code>GradientPaint</code> instance to fit some target 
  58:      * shape.  Classes that implement this method typically return a new
  59:      * instance of <code>GradientPaint</code>.
  60:      * 
  61:      * @param paint  the original paint (not <code>null</code>).
  62:      * @param target  the reference area (not <code>null</code>).
  63:      * 
  64:      * @return A transformed paint.
  65:      */
  66:     public GradientPaint transform(GradientPaint paint, Shape target);
  67: 
  68: }