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
|
/*
* Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2007 Alp Toker <alp@atoker.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "modules/canvas2d/CanvasGradient.h"
#include "bindings/core/v8/ExceptionState.h"
#include "core/dom/ExceptionCode.h"
#include "modules/canvas2d/CanvasPattern.h"
#include "modules/canvas2d/CanvasStyle.h"
namespace blink {
CanvasGradient::CanvasGradient(const FloatPoint& p0, const FloatPoint& p1)
: m_gradient(Gradient::create(p0, p1)) {}
CanvasGradient::CanvasGradient(const FloatPoint& p0,
float r0,
const FloatPoint& p1,
float r1)
: m_gradient(Gradient::create(p0, r0, p1, r1)) {}
void CanvasGradient::addColorStop(float value,
const String& colorString,
ExceptionState& exceptionState) {
if (!(value >= 0 && value <= 1.0f)) {
exceptionState.throwDOMException(
IndexSizeError, "The provided value (" + String::number(value) +
") is outside the range (0.0, 1.0).");
return;
}
Color color = 0;
if (!parseColorOrCurrentColor(color, colorString, 0 /*canvas*/)) {
exceptionState.throwDOMException(SyntaxError,
"The value provided ('" + colorString +
"') could not be parsed as a color.");
return;
}
m_gradient->addColorStop(value, color);
}
} // namespace blink
|
