1/*
2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#pragma once
22
23#include "ImageBuffer.h"
24#include "Pattern.h"
25#include "PatternAttributes.h"
26#include "RenderSVGResourceContainer.h"
27#include "SVGPatternElement.h"
28#include <memory>
29#include <wtf/IsoMallocInlines.h>
30#include <wtf/HashMap.h>
31
32namespace WebCore {
33
34struct PatternData {
35 WTF_MAKE_FAST_ALLOCATED;
36public:
37 RefPtr<Pattern> pattern;
38 AffineTransform transform;
39};
40
41class RenderSVGResourcePattern final : public RenderSVGResourceContainer {
42 WTF_MAKE_ISO_ALLOCATED(RenderSVGResourcePattern);
43public:
44 RenderSVGResourcePattern(SVGPatternElement&, RenderStyle&&);
45 SVGPatternElement& patternElement() const;
46
47 void removeAllClientsFromCache(bool markForInvalidation = true) override;
48 void removeClientFromCache(RenderElement&, bool markForInvalidation = true) override;
49
50 bool applyResource(RenderElement&, const RenderStyle&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>) override;
51 void postApplyResource(RenderElement&, GraphicsContext*&, OptionSet<RenderSVGResourceMode>, const Path*, const RenderSVGShape*) override;
52 FloatRect resourceBoundingBox(const RenderObject&) override { return FloatRect(); }
53
54 RenderSVGResourceType resourceType() const override { return PatternResourceType; }
55
56 void collectPatternAttributes(PatternAttributes&) const;
57
58private:
59 void element() const = delete;
60 const char* renderName() const override { return "RenderSVGResourcePattern"; }
61
62 bool buildTileImageTransform(RenderElement&, const PatternAttributes&, const SVGPatternElement&, FloatRect& patternBoundaries, AffineTransform& tileImageTransform) const;
63
64 std::unique_ptr<ImageBuffer> createTileImage(const PatternAttributes&, const FloatRect& tileBoundaries, const FloatRect& absoluteTileBoundaries, const AffineTransform& tileImageTransform, FloatRect& clampedAbsoluteTileBoundaries, RenderingMode) const;
65
66 PatternData* buildPattern(RenderElement&, OptionSet<RenderSVGResourceMode>, GraphicsContext&);
67
68 PatternAttributes m_attributes;
69 HashMap<RenderElement*, std::unique_ptr<PatternData>> m_patternMap;
70 bool m_shouldCollectPatternAttributes { true };
71};
72
73} // namespace WebCore
74
75SPECIALIZE_TYPE_TRAITS_RENDER_SVG_RESOURCE(RenderSVGResourcePattern, PatternResourceType)
76