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Java > Open Source Codes > org > apache > fop > datatypes > ColorSpace


1 /*
2  * $Id: ColorSpace.java,v 1.3.2.2 2003/02/25 10:48:28 jeremias Exp $
3  * ============================================================================
4  * The Apache Software License, Version 1.1
5  * ============================================================================
6  *
7  * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without modifica-
10  * tion, are permitted provided that the following conditions are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright notice,
13  * this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright notice,
16  * this list of conditions and the following disclaimer in the documentation
17  * and/or other materials provided with the distribution.
18  *
19  * 3. The end-user documentation included with the redistribution, if any, must
20  * include the following acknowledgment: "This product includes software
21  * developed by the Apache Software Foundation (http://www.apache.org/)."
22  * Alternately, this acknowledgment may appear in the software itself, if
23  * and wherever such third-party acknowledgments normally appear.
24  *
25  * 4. The names "FOP" and "Apache Software Foundation" must not be used to
26  * endorse or promote products derived from this software without prior
27  * written permission. For written permission, please contact
28  * apache@apache.org.
29  *
30  * 5. Products derived from this software may not be called "Apache", nor may
31  * "Apache" appear in their name, without prior written permission of the
32  * Apache Software Foundation.
33  *
34  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
35  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
36  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
37  * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
38  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
39  * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
40  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
41  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
42  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
43  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44  * ============================================================================
45  *
46  * This software consists of voluntary contributions made by many individuals
47  * on behalf of the Apache Software Foundation and was originally created by
48  * James Tauber <jtauber@jtauber.com>. For more information on the Apache
49  * Software Foundation, please see <http://www.apache.org/>.
50  */
51 package org.apache.fop.datatypes;
52
53 public class ColorSpace {
54     private boolean hasICCProfile;
55     private byte[] iccProfile;
56     private int numComponents;
57
58     // Ok... so I had some grand purpose for this, but I can't recall.
59 // I'm just writing it
60
61     public static final int DEVICE_UNKNOWN = -1;
62     public static final int DEVICE_GRAY = 1;
63     // what's the *official* spelling?
64 // public static int DEVICE_GREY = 1;
65 public static final int DEVICE_RGB = 2;
66     public static final int DEVICE_CMYK = 3;
67
68
69     // Are there any others?
70
71     protected int currentColorSpace = -1;
72
73     public ColorSpace(int theColorSpace) {
74         this.currentColorSpace = theColorSpace;
75         hasICCProfile = false;
76         numComponents = calculateNumComponents();
77     }
78
79     private int calculateNumComponents() {
80         if (currentColorSpace == DEVICE_GRAY)
81             return 1;
82         else if (currentColorSpace == DEVICE_RGB)
83             return 3;
84         else if (currentColorSpace == DEVICE_CMYK)
85             return 4;
86         else
87             return 0;
88     }
89
90     public void setColorSpace(int theColorSpace) {
91         this.currentColorSpace = theColorSpace;
92         numComponents = calculateNumComponents();
93     }
94
95     public boolean hasICCProfile() {
96         return hasICCProfile;
97     }
98
99     public byte[] getICCProfile() {
100         if (hasICCProfile)
101             return iccProfile;
102         else
103             return new byte[0];
104     }
105
106     public void setICCProfile(byte[] iccProfile) {
107         this.iccProfile = iccProfile;
108         hasICCProfile = true;
109     }
110
111     public int getColorSpace() {
112         return (this.currentColorSpace);
113     }
114
115     public int getNumComponents() {
116         return numComponents;
117     }
118
119     public String JavaDoc getColorSpacePDFString() { // this is for PDF Output. Does anyone else need a string representation?
120
121
122         // shouldn't this be a select-case? I can never remember
123 // the syntax for that.
124 if (this.currentColorSpace == this.DEVICE_RGB) {
125             return ("DeviceRGB");
126         } else if (this.currentColorSpace == this.DEVICE_CMYK) {
127             return ("DeviceCMYK");
128         } else if (this.currentColorSpace == this.DEVICE_GRAY) {
129             return ("DeviceGray");
130         } else { // unknown... Error. Tell them it's RGB and hope they don't notice.
131 return ("DeviceRGB");
132         }
133     }
134
135 }
136
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