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 RenderSVGResourceMarker_h
21 #define RenderSVGResourceMarker_h
23 #include "core/rendering/svg/RenderSVGResourceContainer.h"
24 #include "core/svg/SVGElement.h"
25 #include "core/svg/SVGMarkerElement.h"
26 #include "platform/geometry/FloatRect.h"
27 #include "wtf/HashSet.h"
33 class RenderSVGResourceMarker final : public RenderSVGResourceContainer {
35 explicit RenderSVGResourceMarker(SVGMarkerElement*);
36 virtual ~RenderSVGResourceMarker();
38 virtual const char* renderName() const override { return "RenderSVGResourceMarker"; }
40 virtual void removeAllClientsFromCache(bool markForInvalidation = true) override;
41 virtual void removeClientFromCache(RenderObject*, bool markForInvalidation = true) override;
43 // Calculates marker boundaries, mapped to the target element's coordinate space
44 FloatRect markerBoundaries(const AffineTransform& markerTransformation) const;
46 virtual void layout() override;
47 virtual void calcViewport() override;
49 virtual const AffineTransform& localToParentTransform() const override;
50 AffineTransform markerTransformation(const FloatPoint& origin, float angle, float strokeWidth) const;
52 FloatPoint referencePoint() const;
54 SVGMarkerUnitsType markerUnits() const { return toSVGMarkerElement(element())->markerUnits()->currentValue()->enumValue(); }
55 SVGMarkerOrientType orientType() const { return toSVGMarkerElement(element())->orientType()->currentValue()->enumValue(); }
57 const FloatRect& viewport() const { return m_viewport; }
59 static const RenderSVGResourceType s_resourceType = MarkerResourceType;
60 virtual RenderSVGResourceType resourceType() const override { return s_resourceType; }
63 // Generates a transformation matrix usable to render marker content. Handles scaling the marker content
64 // acording to SVGs markerUnits="strokeWidth" concept, when a strokeWidth value != -1 is passed in.
65 AffineTransform markerContentTransformation(const AffineTransform& contentTransformation, const FloatPoint& origin, float strokeWidth = -1) const;
67 AffineTransform viewportTransform() const;
69 mutable AffineTransform m_localToParentTransform;
73 DEFINE_RENDER_SVG_RESOURCE_TYPE_CASTS(RenderSVGResourceMarker, MarkerResourceType);