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
|
/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: FontReadHandler.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.style.parser.stylehandler.font;
import java.util.HashMap;
import java.util.Map;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.keys.font.FontStyleKeys;
import org.jfree.layouting.input.style.keys.line.LineStyleKeys;
import org.jfree.layouting.input.style.parser.CSSCompoundValueReadHandler;
import org.jfree.layouting.input.style.parser.stylehandler.line.LineHeightReadHandler;
import org.jfree.layouting.input.style.values.CSSValue;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 28.11.2005, 17:05:01
*
* @author Thomas Morgner
*/
public class FontReadHandler implements CSSCompoundValueReadHandler
{
private FontStyleReadHandler styleReadHandler;
private FontSizeReadHandler sizeReadHandler;
private FontWeightReadHandler weightReadHandler;
private FontVariantReadHandler variantReadHandler;
private LineHeightReadHandler lineHeightReadHandler;
private FontFamilyReadHandler fontFamilyReadHandler;
public FontReadHandler()
{
this.styleReadHandler = new FontStyleReadHandler();
this.sizeReadHandler = new FontSizeReadHandler();
this.weightReadHandler = new FontWeightReadHandler();
this.variantReadHandler = new FontVariantReadHandler();
this.lineHeightReadHandler = new LineHeightReadHandler();
this.fontFamilyReadHandler = new FontFamilyReadHandler();
}
/**
* Parses the LexicalUnit and returns a map of (StyleKey, CSSValue) pairs.
*
* @param unit
* @return
*/
public Map createValues(LexicalUnit unit)
{
// todo we ignore the font-family system font styles for now.
final CSSValue fontStyle = styleReadHandler.createValue(null, unit);
if (fontStyle != null)
{
unit = unit.getNextLexicalUnit();
if (unit == null)
{
return null;
}
}
final CSSValue fontVariant = variantReadHandler.createValue(null, unit);
if (fontVariant != null)
{
unit = unit.getNextLexicalUnit();
if (unit == null)
{
return null;
}
}
final CSSValue fontWeight = weightReadHandler.createValue(null, unit);
if (fontWeight != null)
{
unit = unit.getNextLexicalUnit();
if (unit == null)
{
return null;
}
}
final CSSValue fontSize = sizeReadHandler.createValue(null, unit);
if (fontSize == null)
{
return null; // required value is missing
}
unit = unit.getNextLexicalUnit();
if (unit == null)
{
return null; // font family missing
}
CSSValue lineHeight = null;
if (unit.getLexicalUnitType() == LexicalUnit.SAC_OPERATOR_SLASH)
{
unit = unit.getNextLexicalUnit();
if (unit == null)
{
return null;
}
lineHeight = lineHeightReadHandler.createValue(null, unit);
if (lineHeight == null)
{
return null; // required sequence missing
}
unit = unit.getNextLexicalUnit();
if (unit == null)
{
return null;
}
}
final CSSValue fontFamily = fontFamilyReadHandler.createValue(null, unit);
if (fontFamily == null)
{
return null; // font family is required!
}
final Map map = new HashMap();
map.put(FontStyleKeys.FONT_FAMILY, fontFamily);
map.put(FontStyleKeys.FONT_SIZE, fontSize);
if (lineHeight != null)
{
map.put(LineStyleKeys.LINE_HEIGHT, lineHeight);
}
if (fontWeight != null)
{
map.put(FontStyleKeys.FONT_WEIGHT, fontWeight);
}
if (fontVariant != null)
{
map.put(FontStyleKeys.FONT_VARIANT, fontVariant);
}
if (fontStyle != null)
{
map.put(FontStyleKeys.FONT_STYLE, fontStyle);
}
return map;
}
public StyleKey[] getAffectedKeys()
{
return new StyleKey[]{
FontStyleKeys.FONT_FAMILY,
FontStyleKeys.FONT_SIZE,
FontStyleKeys.FONT_WEIGHT,
FontStyleKeys.FONT_VARIANT,
FontStyleKeys.FONT_STYLE,
LineStyleKeys.LINE_HEIGHT
};
}
}
|
