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1 /*
2  * $Id: FontInfo.java,v 1.12.2.4 2003/02/25 14:07:03 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.layout;
52
53 import org.apache.fop.apps.FOPException;
54 import org.apache.fop.messaging.MessageHandler;
55
56 import java.util.HashMap JavaDoc;
57
58 public class FontInfo {
59     HashMap JavaDoc usedFonts;
60     HashMap JavaDoc triplets; // look up a font-triplet to find a font-name
61
HashMap JavaDoc fonts; // look up a font-name to get a font (that implements FontMetric at least)
62

63     public FontInfo() {
64         this.triplets = new HashMap JavaDoc();
65         this.fonts = new HashMap JavaDoc();
66         this.usedFonts = new HashMap JavaDoc();
67     }
68
69     public void addFontProperties(String JavaDoc name, String JavaDoc family, String JavaDoc style,
70                                   String JavaDoc weight) {
71         /*
72          * add the given family, style and weight as a lookup for the font
73          * with the given name
74          */

75
76         String JavaDoc key = createFontKey(family, style, weight);
77         this.triplets.put(key, name);
78     }
79
80     public void addMetrics(String JavaDoc name, FontMetric metrics) {
81         // add the given metrics as a font with the given name
82

83         this.fonts.put(name, metrics);
84     }
85
86     public String JavaDoc fontLookup(String JavaDoc family, String JavaDoc style,
87                              String JavaDoc weight) throws FOPException {
88         return fontLookup(createFontKey(family, style, weight));
89     }
90
91     public String JavaDoc fontLookup(String JavaDoc key) throws FOPException {
92
93         String JavaDoc f = (String JavaDoc)this.triplets.get(key);
94         if (f == null) {
95             int i = key.indexOf(',');
96             String JavaDoc s = "any" + key.substring(i);
97             f = (String JavaDoc)this.triplets.get(s);
98             if (f == null) {
99                 f = (String JavaDoc)this.triplets.get("any,normal,normal");
100                 if (f == null) {
101                     throw new FOPException("no default font defined by OutputConverter");
102                 }
103                 MessageHandler.errorln("defaulted font to any,normal,normal");
104             }
105             MessageHandler.errorln("unknown font " + key
106                                    + " so defaulted font to any");
107         }
108
109         usedFonts.put(f, fonts.get(f));
110         return f;
111     }
112
113     public boolean hasFont(String JavaDoc family, String JavaDoc style, String JavaDoc weight) {
114         String JavaDoc key = createFontKey(family, style, weight);
115         return this.triplets.get(key) != null;
116     }
117
118     public boolean hasFont(String JavaDoc key) {
119         return this.triplets.get(key) != null;
120     }
121
122     /**
123      * Creates a key from the given strings
124      */

125     public static String JavaDoc createFontKey(String JavaDoc family, String JavaDoc style,
126                                        String JavaDoc weight) {
127         int i;
128
129         try {
130             i = Integer.parseInt(weight);
131         } catch (NumberFormatException JavaDoc e) {
132             i = 0;
133         }
134
135         if (i > 600)
136             weight = "bold";
137         else if (i > 0)
138             weight = "normal";
139
140         return family + "," + style + "," + weight;
141     }
142
143     public HashMap JavaDoc getFonts() {
144         return this.fonts;
145     }
146
147     public HashMap JavaDoc getUsedFonts() {
148         return this.usedFonts;
149     }
150
151     public FontMetric getMetricsFor(String JavaDoc fontName) throws FOPException {
152         usedFonts.put(fontName, fonts.get(fontName));
153         return (FontMetric)fonts.get(fontName);
154     }
155
156 }
157
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