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
|
/*
* Copyright (C) Research In Motion Limited 2009-2010. 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 RenderSVGResource_h
#define RenderSVGResource_h
#if ENABLE(SVG)
#include "FloatRect.h"
#include "RenderSVGHiddenContainer.h"
namespace WebCore {
enum RenderSVGResourceType {
MaskerResourceType,
ClipperResourceType
};
class RenderSVGResource : public RenderSVGHiddenContainer {
public:
RenderSVGResource(SVGStyledElement* node) : RenderSVGHiddenContainer(node) { }
template<class Renderer>
Renderer* cast()
{
if (Renderer::s_resourceType == resourceType())
return static_cast<Renderer*>(this);
return 0;
}
virtual RenderSVGResource* toRenderSVGResource() { return this; }
virtual bool isSVGResource() const { return true; }
virtual bool drawsContents() { return false; }
virtual void invalidateClients() = 0;
virtual void invalidateClient(RenderObject*) = 0;
virtual bool applyResource(RenderObject*, GraphicsContext*) = 0;
virtual FloatRect resourceBoundingBox(const FloatRect&) const = 0;
virtual RenderSVGResourceType resourceType() const = 0;
};
template<typename Renderer>
Renderer* getRenderSVGResourceById(Document* document, const AtomicString& id)
{
if (id.isEmpty())
return 0;
Element* element = document->getElementById(id);
if (!element || !element->isSVGElement())
return 0;
RenderObject* renderer = element->renderer();
if (!renderer)
return 0;
RenderSVGResource* renderResource = renderer->toRenderSVGResource();
if (!renderResource)
return 0;
return renderResource->cast<Renderer>();
}
}
#endif
#endif
|
