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Java > Open Source Codes > org > pdfbox > pdmodel > graphics > color > PDColorSpace


1 /**
2  * Copyright (c) 2004, www.pdfbox.org
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * 3. Neither the name of pdfbox; nor the names of its
14  * contributors may be used to endorse or promote products derived from this
15  * software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20  * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * http://www.pdfbox.org
29  *
30  */
31 package org.pdfbox.pdmodel.graphics.color;
32
33 import org.pdfbox.cos.COSBase;
34 import org.pdfbox.cos.COSName;
35
36 import org.pdfbox.pdmodel.common.COSObjectable;
37
38 import java.io.IOException JavaDoc;
39
40 import java.awt.color.ColorSpace JavaDoc;
41 import java.awt.image.ColorModel JavaDoc;
42
43
44 /**
45  * This class represents a color space in a pdf document.
46  *
47  * @author <a HREF="mailto:ben@benlitchfield.com">Ben Litchfield</a>
48  * @version $Revision: 1.5 $
49  */
50 public abstract class PDColorSpace implements COSObjectable
51 {
52     /**
53      * This will return the name of the color space.
54      *
55      * @return The name of the color space.
56      */
57     public abstract String JavaDoc getName();
58
59     /**
60      * This will get the number of components that this color space is made up of.
61      *
62      * @return The number of components in this color space.
63      *
64      * @throws IOException If there is an error getting the number of color components.
65      */
66     public abstract int getNumberOfComponents() throws IOException JavaDoc;
67
68     /**
69      * Convert this standard java object to a COS object.
70      *
71      * @return The cos object that matches this Java object.
72      */
73     public COSBase getCOSObject()
74     {
75         return COSName.getPDFName( getName() );
76     }
77
78     /**
79      * Create a Java colorspace for this colorspace.
80      *
81      * @return A color space that can be used for Java AWT operations.
82      *
83      * @throws IOException If there is an error creating the color space.
84      */
85     public abstract ColorSpace JavaDoc createColorSpace() throws IOException JavaDoc;
86     
87     /**
88      * Create a Java color model for this colorspace.
89      *
90      * @param bpc The number of bits per component.
91      *
92      * @return A color model that can be used for Java AWT operations.
93      *
94      * @throws IOException If there is an error creating the color model.
95      */
96     public abstract ColorModel JavaDoc createColorModel( int bpc ) throws IOException JavaDoc;
97 }
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