aboutsummaryrefslogtreecommitdiffstats
path: root/src/java/org/apache/fop/fo/properties/FontFamilyProperty.java
blob: 7404dbe9b3c3bbe6dbc1530f5260cb13b7dc981c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* $Id$ */

package org.apache.fop.fo.properties;

import java.util.Iterator;

import org.apache.fop.fo.FObj;
import org.apache.fop.fo.PropertyList;
import org.apache.fop.fo.expr.PropertyException;

/**
 * Property class for the font-family property.
 */
public final class FontFamilyProperty extends ListProperty {

    /** cache holding all canonical FontFamilyProperty instances */
    private static final PropertyCache cache = new PropertyCache(FontFamilyProperty.class);
    
    private int hash = 0;
    
    /**
     * Inner class for creating instances of ListProperty
     */
    public static class Maker extends PropertyMaker {

        /**
         * @param propId ID of the property for which Maker should be created
         */
        public Maker(int propId) {
            super(propId);
        }

        /**
         * {@inheritDoc}
         */
        public Property make(PropertyList propertyList, String value, FObj fo) throws PropertyException {
            if ("inherit".equals(value)) {
                return super.make(propertyList, value, fo);
            } else {
                FontFamilyProperty prop = new FontFamilyProperty();
                String tmpVal;
                int startIndex = 0;
                int commaIndex = value.indexOf(',');
                int quoteIndex;
                int aposIndex;
                char qChar;
                boolean parsed = false;
                while (!parsed) {
                    if (commaIndex == -1) {
                        tmpVal = value.substring(startIndex).trim();
                        parsed = true;
                    } else {
                        tmpVal = value.substring(startIndex, commaIndex).trim();
                        startIndex = commaIndex + 1;
                        commaIndex = value.indexOf(',', startIndex);
                    }
                    aposIndex = tmpVal.indexOf('\'');
                    quoteIndex = tmpVal.indexOf('\"');
                    if (aposIndex != -1 || quoteIndex != -1) {
                        qChar = (aposIndex == -1) ? '\"' : '\'';
                        if (tmpVal.lastIndexOf(qChar) != tmpVal.length() - 1) {
                            log.warn("Skipping malformed value for font-family: "
                                    + tmpVal + " in \"" + value + "\".");
                            tmpVal = "";
                        } else {
                            tmpVal = tmpVal.substring(1, tmpVal.length() - 1);
                        }
                    }
                    if (!"".equals(tmpVal)) {
                        int dblSpaceIndex = tmpVal.indexOf("  ");
                        while (dblSpaceIndex != -1) {
                            tmpVal = tmpVal.substring(0, dblSpaceIndex)
                                        + tmpVal.substring(dblSpaceIndex + 1);
                            dblSpaceIndex = tmpVal.indexOf("  ");
                        }
                        prop.addProperty(StringProperty.getInstance(tmpVal));
                    }
                }
                return cache.fetch(prop);
            }
        }

        /**
         * {@inheritDoc}
         */
        public Property convertProperty(Property p,
                                        PropertyList propertyList, FObj fo) {
            if (p instanceof FontFamilyProperty) {
                return p;
            } else {
                return new FontFamilyProperty(p);
            }
        }

    }

    /**
     * @param prop the first Property to be added to the list
     */
    private FontFamilyProperty(Property prop) {
        super();
        addProperty(prop);
    }

    /**
     * Default constructor.
     *
     */
    private FontFamilyProperty() {
        super();
    }
    
    /**
     * Add a new property to the list
     * @param prop Property to be added to the list
     */
    public void addProperty(Property prop) {
        if (prop.getList() != null) {
            list.addAll(prop.getList());
        } else {
            super.addProperty(prop);
        }
    }

    /** {@inheritDoc} */
    public String getString() {
        if (list.size() > 0) {
            Property first = (Property)list.get(0);
            return first.getString();
        } else {
            return super.getString();
        }
    }

    /** {@inheritDoc} */
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        
        if (o instanceof FontFamilyProperty) {
            FontFamilyProperty ffp = (FontFamilyProperty) o;
            return (this.list != null
                    && this.list.equals(ffp.list));
        }
        return false;
    }
    
    /** {@inheritDoc} */
    public int hashCode() {
        if (this.hash == 0) {
            int hash = 17;
            for (Iterator i = list.iterator(); i.hasNext();) {
                Property p = (Property) i.next();
                hash = 37 * hash + (p == null ? 0 : p.hashCode());
            }
            this.hash = hash;
        }
        return this.hash;
    }
}