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Java > Open Source Codes > com > lowagie > text > pdf > PdfSpotColor


1 /*
2  * $Id: PdfSpotColor.java 2366 2006-09-14 23:10:58Z xlv $
3  * $Name$
4  *
5  * Copyright 2001, 2002 Paulo Soares
6  *
7  * The contents of this file are subject to the Mozilla Public License Version 1.1
8  * (the "License"); you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at http://www.mozilla.org/MPL/
10  *
11  * Software distributed under the License is distributed on an "AS IS" basis,
12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13  * for the specific language governing rights and limitations under the License.
14  *
15  * The Original Code is 'iText, a free JAVA-PDF library'.
16  *
17  * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
18  * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
19  * All Rights Reserved.
20  * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
21  * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
22  *
23  * Contributor(s): all the names of the contributors are added in the source code
24  * where applicable.
25  *
26  * Alternatively, the contents of this file may be used under the terms of the
27  * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
28  * provisions of LGPL are applicable instead of those above. If you wish to
29  * allow use of your version of this file only under the terms of the LGPL
30  * License and not to allow others to use your version of this file under
31  * the MPL, indicate your decision by deleting the provisions above and
32  * replace them with the notice and other provisions required by the LGPL.
33  * If you do not delete the provisions above, a recipient may use your version
34  * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
35  *
36  * This library is free software; you can redistribute it and/or modify it
37  * under the terms of the MPL as stated above or under the terms of the GNU
38  * Library General Public License as published by the Free Software Foundation;
39  * either version 2 of the License, or any later version.
40  *
41  * This library is distributed in the hope that it will be useful, but WITHOUT
42  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
43  * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
44  * details.
45  *
46  * If you didn't download this code from the following link, you should check if
47  * you aren't using an obsolete version:
48  * http://www.lowagie.com/iText/
49  */
50
51 package com.lowagie.text.pdf;
52
53 import java.awt.Color JavaDoc;
54
55 /**
56  * A <CODE>PdfSpotColor</CODE> defines a ColorSpace
57  *
58  * @see PdfDictionary
59  */
60
61 public class PdfSpotColor{
62     
63 /* The tint value */
64     protected float tint;
65     
66 /** The color name */
67     public PdfName name;
68     
69 /** The alternative color space */
70     public Color JavaDoc altcs;
71     // constructors
72
73     /**
74      * Constructs a new <CODE>PdfSpotColor</CODE>.
75      *
76      * @param name a String value
77      * @param tint a tint value between 0 and 1
78      * @param altcs a altnative colorspace value
79      */
80     
81     public PdfSpotColor(String JavaDoc name, float tint, Color JavaDoc altcs) {
82         this.name = new PdfName(name);
83         this.tint = tint;
84         this.altcs = altcs;
85     }
86     
87     /**
88      * Gets the tint of the SpotColor.
89      * @return a float
90      */
91     public float getTint() {
92         return tint;
93     }
94     
95     /**
96      * Gets the alternative ColorSpace.
97      * @return a Colot
98      */
99     public Color JavaDoc getAlternativeCS() {
100         return altcs;
101     }
102     
103     protected PdfObject getSpotObject(PdfWriter writer) {
104         PdfArray array = new PdfArray(PdfName.SEPARATION);
105         array.add(name);
106         PdfFunction func = null;
107         if (altcs instanceof ExtendedColor) {
108             int type = ((ExtendedColor)altcs).type;
109             switch (type) {
110                 case ExtendedColor.TYPE_GRAY:
111                     array.add(PdfName.DEVICEGRAY);
112                     func = PdfFunction.type2(writer, new float[]{0, 1}, null, new float[]{0}, new float[]{((GrayColor)altcs).getGray()}, 1);
113                     break;
114                 case ExtendedColor.TYPE_CMYK:
115                     array.add(PdfName.DEVICECMYK);
116                     CMYKColor cmyk = (CMYKColor)altcs;
117                     func = PdfFunction.type2(writer, new float[]{0, 1}, null, new float[]{0, 0, 0, 0},
118                         new float[]{cmyk.getCyan(), cmyk.getMagenta(), cmyk.getYellow(), cmyk.getBlack()}, 1);
119                     break;
120                 default:
121                     throw new RuntimeException JavaDoc("Only RGB, Gray and CMYK are supported as alternative color spaces.");
122             }
123         }
124         else {
125             array.add(PdfName.DEVICERGB);
126             func = PdfFunction.type2(writer, new float[]{0, 1}, null, new float[]{1, 1, 1},
127                 new float[]{(float)altcs.getRed() / 255, (float)altcs.getGreen() / 255, (float)altcs.getBlue() / 255}, 1);
128         }
129         array.add(func.getReference());
130         return array;
131     }
132 }
133
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