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
|
/*
* Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* 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.
*/
#ifndef CanvasStyle_h
#define CanvasStyle_h
#include "platform/graphics/Color.h"
#include "platform/heap/Handle.h"
#include "wtf/Assertions.h"
#include "wtf/text/WTFString.h"
class SkPaint;
namespace blink {
class CanvasGradient;
class CanvasPattern;
class HTMLCanvasElement;
class CanvasStyle final : public GarbageCollected<CanvasStyle> {
public:
static CanvasStyle* createFromRGBA(RGBA32 rgba) {
return new CanvasStyle(rgba);
}
static CanvasStyle* createFromGradient(CanvasGradient*);
static CanvasStyle* createFromPattern(CanvasPattern*);
String color() const {
ASSERT(m_type == ColorRGBA);
return Color(m_rgba).serialized();
}
CanvasGradient* getCanvasGradient() const { return m_gradient.get(); }
CanvasPattern* getCanvasPattern() const { return m_pattern; }
void applyToPaint(SkPaint&) const;
RGBA32 paintColor() const;
bool isEquivalentRGBA(RGBA32 rgba) const {
return m_type == ColorRGBA && m_rgba == rgba;
}
DECLARE_TRACE();
private:
enum Type { ColorRGBA, Gradient, ImagePattern };
CanvasStyle(RGBA32);
CanvasStyle(CanvasGradient*);
CanvasStyle(CanvasPattern*);
Type m_type;
RGBA32 m_rgba;
Member<CanvasGradient> m_gradient;
Member<CanvasPattern> m_pattern;
};
bool parseColorOrCurrentColor(Color& parsedColor,
const String& colorString,
HTMLCanvasElement*);
} // namespace blink
#endif
|
