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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/*
* Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "SVGAngleValue.h"
#include "ExceptionCode.h"
#include "SVGParserUtilities.h"
#include <wtf/MathExtras.h>
#include <wtf/text/StringView.h>
namespace WebCore {
float SVGAngleValue::value() const
{
switch (m_unitType) {
case SVG_ANGLETYPE_GRAD:
return grad2deg(m_valueInSpecifiedUnits);
case SVG_ANGLETYPE_RAD:
return rad2deg(m_valueInSpecifiedUnits);
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_UNKNOWN:
case SVG_ANGLETYPE_DEG:
return m_valueInSpecifiedUnits;
}
ASSERT_NOT_REACHED();
return 0;
}
void SVGAngleValue::setValue(float value)
{
switch (m_unitType) {
case SVG_ANGLETYPE_GRAD:
m_valueInSpecifiedUnits = deg2grad(value);
return;
case SVG_ANGLETYPE_RAD:
m_valueInSpecifiedUnits = deg2rad(value);
return;
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_UNKNOWN:
case SVG_ANGLETYPE_DEG:
m_valueInSpecifiedUnits = value;
return;
}
ASSERT_NOT_REACHED();
}
String SVGAngleValue::valueAsString() const
{
switch (m_unitType) {
case SVG_ANGLETYPE_DEG:
return String::number(m_valueInSpecifiedUnits) + "deg";
case SVG_ANGLETYPE_RAD:
return String::number(m_valueInSpecifiedUnits) + "rad";
case SVG_ANGLETYPE_GRAD:
return String::number(m_valueInSpecifiedUnits) + "grad";
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_UNKNOWN:
return String::number(m_valueInSpecifiedUnits);
}
ASSERT_NOT_REACHED();
return String();
}
static inline SVGAngleValue::Type parseAngleType(const UChar* ptr, const UChar* end)
{
switch (end - ptr) {
case 0:
return SVGAngleValue::SVG_ANGLETYPE_UNSPECIFIED;
case 3:
if (ptr[0] == 'd' && ptr[1] == 'e' && ptr[2] == 'g')
return SVGAngleValue::SVG_ANGLETYPE_DEG;
if (ptr[0] == 'r' && ptr[1] == 'a' && ptr[2] == 'd')
return SVGAngleValue::SVG_ANGLETYPE_RAD;
break;
case 4:
if (ptr[0] == 'g' && ptr[1] == 'r' && ptr[2] == 'a' && ptr[3] == 'd')
return SVGAngleValue::SVG_ANGLETYPE_GRAD;
break;
}
return SVGAngleValue::SVG_ANGLETYPE_UNKNOWN;
}
ExceptionOr<void> SVGAngleValue::setValueAsString(const String& value)
{
if (value.isEmpty()) {
m_unitType = SVG_ANGLETYPE_UNSPECIFIED;
return { };
}
auto upconvertedCharacters = StringView(value).upconvertedCharacters();
const UChar* ptr = upconvertedCharacters;
const UChar* end = ptr + value.length();
float valueInSpecifiedUnits = 0;
if (!parseNumber(ptr, end, valueInSpecifiedUnits, false))
return Exception { SYNTAX_ERR };
auto unitType = parseAngleType(ptr, end);
if (unitType == SVG_ANGLETYPE_UNKNOWN)
return Exception { SYNTAX_ERR };
m_unitType = unitType;
m_valueInSpecifiedUnits = valueInSpecifiedUnits;
return { };
}
ExceptionOr<void> SVGAngleValue::newValueSpecifiedUnits(unsigned short unitType, float valueInSpecifiedUnits)
{
if (unitType == SVG_ANGLETYPE_UNKNOWN || unitType > SVG_ANGLETYPE_GRAD)
return Exception { NOT_SUPPORTED_ERR };
m_unitType = static_cast<Type>(unitType);
m_valueInSpecifiedUnits = valueInSpecifiedUnits;
return { };
}
ExceptionOr<void> SVGAngleValue::convertToSpecifiedUnits(unsigned short unitType)
{
if (unitType == SVG_ANGLETYPE_UNKNOWN || m_unitType == SVG_ANGLETYPE_UNKNOWN || unitType > SVG_ANGLETYPE_GRAD)
return Exception { NOT_SUPPORTED_ERR };
if (unitType == m_unitType)
return { };
switch (m_unitType) {
case SVG_ANGLETYPE_RAD:
switch (unitType) {
case SVG_ANGLETYPE_GRAD:
m_valueInSpecifiedUnits = rad2grad(m_valueInSpecifiedUnits);
break;
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_DEG:
m_valueInSpecifiedUnits = rad2deg(m_valueInSpecifiedUnits);
break;
case SVG_ANGLETYPE_RAD:
case SVG_ANGLETYPE_UNKNOWN:
ASSERT_NOT_REACHED();
break;
}
break;
case SVG_ANGLETYPE_GRAD:
switch (unitType) {
case SVG_ANGLETYPE_RAD:
m_valueInSpecifiedUnits = grad2rad(m_valueInSpecifiedUnits);
break;
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_DEG:
m_valueInSpecifiedUnits = grad2deg(m_valueInSpecifiedUnits);
break;
case SVG_ANGLETYPE_GRAD:
case SVG_ANGLETYPE_UNKNOWN:
ASSERT_NOT_REACHED();
break;
}
break;
case SVG_ANGLETYPE_UNSPECIFIED:
// Spec: For angles, a unitless value is treated the same as if degrees were specified.
case SVG_ANGLETYPE_DEG:
switch (unitType) {
case SVG_ANGLETYPE_RAD:
m_valueInSpecifiedUnits = deg2rad(m_valueInSpecifiedUnits);
break;
case SVG_ANGLETYPE_GRAD:
m_valueInSpecifiedUnits = deg2grad(m_valueInSpecifiedUnits);
break;
case SVG_ANGLETYPE_UNSPECIFIED:
case SVG_ANGLETYPE_DEG:
break;
case SVG_ANGLETYPE_UNKNOWN:
ASSERT_NOT_REACHED();
break;
}
break;
case SVG_ANGLETYPE_UNKNOWN:
ASSERT_NOT_REACHED();
break;
}
m_unitType = static_cast<Type>(unitType);
return { };
}
}
|
