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
|
/*
* Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2008 Eric Seidel <eric@webkit.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.
*/
#ifndef LayoutSVGResourceGradient_h
#define LayoutSVGResourceGradient_h
#include "core/layout/svg/LayoutSVGResourcePaintServer.h"
#include "core/svg/SVGGradientElement.h"
#include "platform/geometry/FloatRect.h"
#include "platform/graphics/Gradient.h"
#include "platform/transforms/AffineTransform.h"
#include "wtf/HashMap.h"
#include <memory>
namespace blink {
struct GradientData {
USING_FAST_MALLOC(GradientData);
public:
RefPtr<Gradient> gradient;
AffineTransform userspaceTransform;
};
class LayoutSVGResourceGradient : public LayoutSVGResourcePaintServer {
public:
explicit LayoutSVGResourceGradient(SVGGradientElement*);
void removeAllClientsFromCache(bool markForInvalidation = true) final;
void removeClientFromCache(LayoutObject*,
bool markForInvalidation = true) final;
SVGPaintServer preparePaintServer(const LayoutObject&) final;
bool isChildAllowed(LayoutObject* child, const ComputedStyle&) const final;
protected:
void addStops(Gradient&, const Vector<Gradient::ColorStop>&) const;
virtual SVGUnitTypes::SVGUnitType gradientUnits() const = 0;
virtual AffineTransform calculateGradientTransform() const = 0;
virtual bool collectGradientAttributes(SVGGradientElement*) = 0;
virtual PassRefPtr<Gradient> buildGradient() const = 0;
static GradientSpreadMethod platformSpreadMethodFromSVGType(
SVGSpreadMethodType);
private:
bool m_shouldCollectGradientAttributes : 1;
HashMap<const LayoutObject*, std::unique_ptr<GradientData>> m_gradientMap;
};
} // namespace blink
#endif
|
