1/*
2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.java2d.pipe;
27
28import java.awt.Color;
29import java.awt.Image;
30import java.awt.image.BufferedImage;
31import java.awt.image.BufferedImageOp;
32import java.awt.image.ImageObserver;
33import java.awt.geom.AffineTransform;
34import sun.java2d.SunGraphics2D;
35
36/**
37 * This interface defines the set of calls that pipeline objects
38 * can use to pass on responsibility for performing various
39 * image copy commands.
40 * There are 3 types of image copies handled by this class:
41 *    - copyImage: These methods simply copy the pixels
42 *      from the src to dest, either from (0, 0) (implicit)
43 *      or from a given (sx, sy) location.
44 *    - scaleImage: These methods copy from src to dest while
45 *      scaling the source image.  The src and dest rectangles
46 *      are used to specify the scale.
47 *    - copyImageBg: These methods behave the same as the
48 *      copyImage methods except they substitute the given
49 *      background color for any transparent pixels.
50 *    - scaleImageBg: These methods behave the same as the
51 *      scaleImage methods except they substitute the given
52 *      background color for any transparent pixels.
53 *    - transformImage....
54 */
55public interface DrawImagePipe {
56
57    public boolean copyImage(SunGraphics2D sg, Image img,
58                             int x, int y,
59                             Color bgColor,
60                             ImageObserver observer);
61
62    public boolean copyImage(SunGraphics2D sg, Image img,
63                             int dx, int dy, int sx, int sy, int w, int h,
64                             Color bgColor,
65                             ImageObserver observer);
66
67    public boolean scaleImage(SunGraphics2D sg, Image img, int x, int y,
68                              int width, int height,
69                              Color bgColor,
70                              ImageObserver observer);
71
72    public boolean scaleImage(SunGraphics2D sg, Image img,
73                              int dx1, int dy1, int dx2, int dy2,
74                              int sx1, int sy1, int sx2, int sy2,
75                              Color bgColor,
76                              ImageObserver observer);
77
78    public boolean transformImage(SunGraphics2D sg, Image img,
79                                  AffineTransform atfm,
80                                  ImageObserver observer);
81
82    public void transformImage(SunGraphics2D sg, BufferedImage img,
83                               BufferedImageOp op, int x, int y);
84
85
86}
87