001 /* TexturePaint.java --
002 Copyright (C) 2002 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package java.awt;
040
041 import gnu.java.awt.java2d.TexturePaintContext;
042
043 import java.awt.geom.AffineTransform;
044 import java.awt.geom.Rectangle2D;
045 import java.awt.image.BufferedImage;
046 import java.awt.image.ColorModel;
047
048 /**
049 * This class provides a way to fill a Shape with a texture that is
050 * specified by a BufferedImage.
051 */
052 public class TexturePaint implements Paint
053 {
054 private final BufferedImage texture;
055 private final Rectangle2D anchor;
056
057 /**
058 * Constructor.
059 *
060 * @param texture - the texture
061 * @param anchor - the shape
062 */
063 public TexturePaint(BufferedImage texture, Rectangle2D anchor)
064 {
065 this.texture = texture;
066 this.anchor = anchor;
067 }
068
069 /**
070 * Gets the texture image.
071 *
072 * @return the texture
073 */
074 public BufferedImage getImage()
075 {
076 return texture;
077 }
078
079 /**
080 * Gets the shape anchor.
081 *
082 * @return the shape anchor
083 */
084 public Rectangle2D getAnchorRect()
085 {
086 return anchor;
087 }
088
089 /**
090 * Creates the context used to paint the texture.
091 *
092 * @param cm - the ColorModel that receives the Paint data. Used only as a hint.
093 * @param deviceBounds - the device space being rendered.
094 * @param userBounds - the user space being rendered
095 * @param xform - the AffineTransform from user space into device space
096 * @param hints - a RenderingHints object that is used to specify how the
097 * pattern is rendered
098 * @return the paint context used to paint the texture
099 */
100 public PaintContext createContext(ColorModel cm, Rectangle deviceBounds,
101 Rectangle2D userBounds,
102 AffineTransform xform, RenderingHints hints)
103 {
104 // TODO: Maybe add some hook for providing alternative/accelerated
105 // implementations of this.
106 return new TexturePaintContext(this, deviceBounds, userBounds, xform);
107 }
108
109 /**
110 * Returns the transparency mode.
111 *
112 * @return the transparency mode.
113 */
114 public int getTransparency()
115 {
116 return texture.getTransparency();
117 }
118 } // class TexturePaint