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
|
/**
* ===========================================
* 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: SpacingLimitReadHandler.java 3524 2007-10-16 11:26:31Z tmorgner $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.input.style.parser.stylehandler.text;
import java.util.HashMap;
import java.util.Map;
import org.jfree.layouting.input.style.StyleKey;
import org.jfree.layouting.input.style.keys.text.TextStyleKeys;
import org.jfree.layouting.input.style.parser.CSSCompoundValueReadHandler;
import org.jfree.layouting.input.style.parser.CSSValueFactory;
import org.jfree.layouting.input.style.values.CSSConstant;
import org.jfree.layouting.input.style.values.CSSNumericType;
import org.jfree.layouting.input.style.values.CSSNumericValue;
import org.jfree.layouting.input.style.values.CSSValue;
import org.w3c.css.sac.LexicalUnit;
/**
* Creation-Date: 24.05.2006, 15:13:13
*
* @author Thomas Morgner
*/
public abstract class SpacingLimitReadHandler implements CSSCompoundValueReadHandler
{
public static final CSSConstant NORMAL = new CSSConstant("normal");
protected SpacingLimitReadHandler()
{
}
/**
* Parses the LexicalUnit and returns a map of (StyleKey, CSSValue) pairs.
*
* @param unit
* @return
*/
public Map createValues(LexicalUnit unit)
{
final CSSValue optimum = parseSingleSpacingValue(unit);
if (optimum == null)
{
return null;
}
unit = unit.getNextLexicalUnit();
final CSSValue minimum = parseSingleSpacingValue(unit);
if (minimum != null)
{
unit = unit.getNextLexicalUnit();
}
final CSSValue maximum = parseSingleSpacingValue(unit);
final Map map = new HashMap();
map.put(getMinimumKey(), minimum);
map.put(TextStyleKeys.X_MAX_LETTER_SPACING, maximum);
map.put(TextStyleKeys.X_OPTIMUM_LETTER_SPACING, optimum);
return map;
}
protected abstract StyleKey getMinimumKey();
protected abstract StyleKey getMaximumKey();
protected abstract StyleKey getOptimumKey();
private CSSValue parseSingleSpacingValue(final LexicalUnit value)
{
if (value == null)
{
return null;
}
if (value.getLexicalUnitType() == LexicalUnit.SAC_IDENT)
{
if ("normal".equalsIgnoreCase(value.getStringValue()))
{
return SpacingLimitReadHandler.NORMAL;
}
return null;
}
if (value.getLexicalUnitType() == LexicalUnit.SAC_PERCENTAGE)
{
return CSSNumericValue.createValue(CSSNumericType.PERCENTAGE,
value.getFloatValue());
}
return CSSValueFactory.createLengthValue(value);
}
public StyleKey[] getAffectedKeys()
{
return new StyleKey[] { getMinimumKey(), getMaximumKey(), getOptimumKey()};
}
}
|
