2 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 #ifndef RenderSVGResourceMasker_h
21 #define RenderSVGResourceMasker_h
23 #include "core/rendering/svg/RenderSVGResourceContainer.h"
24 #include "core/svg/SVGMaskElement.h"
25 #include "core/svg/SVGUnitTypes.h"
26 #include "platform/geometry/FloatRect.h"
27 #include "platform/geometry/IntSize.h"
28 #include "platform/graphics/ImageBuffer.h"
30 #include "wtf/HashMap.h"
31 #include "wtf/OwnPtr.h"
36 class GraphicsContext;
38 class RenderSVGResourceMasker final : public RenderSVGResourceContainer {
40 explicit RenderSVGResourceMasker(SVGMaskElement*);
41 virtual ~RenderSVGResourceMasker();
43 virtual const char* renderName() const override { return "RenderSVGResourceMasker"; }
45 virtual void removeAllClientsFromCache(bool markForInvalidation = true) override;
46 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) override;
48 bool prepareEffect(RenderObject*, GraphicsContext*&);
49 void finishEffect(RenderObject*, GraphicsContext*&);
51 FloatRect resourceBoundingBox(const RenderObject*);
53 SVGUnitTypes::SVGUnitType maskUnits() const { return toSVGMaskElement(element())->maskUnits()->currentValue()->enumValue(); }
54 SVGUnitTypes::SVGUnitType maskContentUnits() const { return toSVGMaskElement(element())->maskContentUnits()->currentValue()->enumValue(); }
56 static const RenderSVGResourceType s_resourceType = MaskerResourceType;
57 virtual RenderSVGResourceType resourceType() const override { return s_resourceType; }
60 void calculateMaskContentPaintInvalidationRect();
61 void drawMaskForRenderer(GraphicsContext*, const FloatRect& targetBoundingBox);
62 void createDisplayList(GraphicsContext*);
64 RefPtr<DisplayList> m_maskContentDisplayList;
65 FloatRect m_maskContentBoundaries;
68 DEFINE_RENDER_SVG_RESOURCE_TYPE_CASTS(RenderSVGResourceMasker, MaskerResourceType);