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
|
/*
* Copyright (C) 2006, 2007, 2009 Apple Inc. 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 "JSCanvasRenderingContext2D.h"
#include "CanvasGradient.h"
#include "CanvasPattern.h"
#include "CanvasRenderingContext2D.h"
#include "CanvasStyle.h"
#include "ExceptionCode.h"
#include "HTMLCanvasElement.h"
#include "HTMLImageElement.h"
#include "ImageData.h"
#include "JSCanvasGradient.h"
#include "JSCanvasPattern.h"
#include "JSHTMLCanvasElement.h"
#include "JSHTMLImageElement.h"
#include "JSImageData.h"
using namespace JSC;
namespace WebCore {
static JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, const CanvasStyle& style)
{
if (style.canvasGradient())
return toJS(exec, globalObject, style.canvasGradient());
if (style.canvasPattern())
return toJS(exec, globalObject, style.canvasPattern());
return jsStringWithCache(exec, style.color());
}
static CanvasStyle toHTMLCanvasStyle(ExecState*, JSValue value)
{
if (!value.isObject())
return CanvasStyle();
JSObject* object = asObject(value);
if (object->inherits(&JSCanvasGradient::s_info))
return CanvasStyle(jsCast<JSCanvasGradient*>(object)->impl());
if (object->inherits(&JSCanvasPattern::s_info))
return CanvasStyle(jsCast<JSCanvasPattern*>(object)->impl());
return CanvasStyle();
}
JSValue JSCanvasRenderingContext2D::strokeStyle(ExecState* exec) const
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
return toJS(exec, globalObject(), context->strokeStyle());
}
void JSCanvasRenderingContext2D::setStrokeStyle(ExecState* exec, JSValue value)
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
if (value.isString()) {
context->setStrokeColor(asString(value)->value(exec));
return;
}
context->setStrokeStyle(toHTMLCanvasStyle(exec, value));
}
JSValue JSCanvasRenderingContext2D::fillStyle(ExecState* exec) const
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
return toJS(exec, globalObject(), context->fillStyle());
}
void JSCanvasRenderingContext2D::setFillStyle(ExecState* exec, JSValue value)
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
if (value.isString()) {
context->setFillColor(asString(value)->value(exec));
return;
}
context->setFillStyle(toHTMLCanvasStyle(exec, value));
}
JSValue JSCanvasRenderingContext2D::webkitLineDash(ExecState* exec) const
{
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
const Vector<float>& dash = context->getLineDash();
MarkedArgumentBuffer list;
Vector<float>::const_iterator end = dash.end();
for (Vector<float>::const_iterator it = dash.begin(); it != end; ++it)
list.append(JSValue(*it));
return constructArray(exec, 0, globalObject(), list);
}
void JSCanvasRenderingContext2D::setWebkitLineDash(ExecState* exec, JSValue value)
{
if (!isJSArray(value))
return;
Vector<float> dash;
JSArray* valueArray = asArray(value);
for (unsigned i = 0; i < valueArray->length(); ++i) {
float elem = valueArray->getIndex(exec, i).toFloat(exec);
if (elem <= 0 || !std::isfinite(elem))
return;
dash.append(elem);
}
CanvasRenderingContext2D* context = static_cast<CanvasRenderingContext2D*>(impl());
context->setWebkitLineDash(dash);
}
} // namespace WebCore
|
