1 /* 2 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 2004, 2005, 2007 Rob Buis <buis (at) kde.org> 4 2009 Google, Inc. 5 Copyright (C) 2009 Apple Inc. All rights reserved. 6 7 This library is free software; you can redistribute it and/or 8 modify it under the terms of the GNU Library General Public 9 License as published by the Free Software Foundation; either 10 version 2 of the License, or (at your option) any later version. 11 12 This library is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Library General Public License for more details. 16 17 You should have received a copy of the GNU Library General Public License 18 aint with this library; see the file COPYING.LIB. If not, write to 19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 Boston, MA 02110-1301, USA. 21 */ 22 23 #ifndef RenderSVGViewportContainer_h 24 #define RenderSVGViewportContainer_h 25 26 #if ENABLE(SVG) 27 #include "RenderSVGContainer.h" 28 29 namespace WebCore { 30 31 // This is used for non-root <svg> elements and <marker> elements, neither of which are SVGTransformable 32 // thus we inherit from RenderSVGContainer instead of RenderSVGTransformableContainer 33 class RenderSVGViewportContainer : public RenderSVGContainer { 34 public: 35 RenderSVGViewportContainer(SVGStyledElement*); 36 37 // Calculates marker boundaries, mapped to the target element's coordinate space 38 FloatRect markerBoundaries(const AffineTransform& markerTransformation) const; 39 40 // Generates a transformation matrix usable to render marker content. Handles scaling the marker content 41 // acording to SVGs markerUnits="strokeWidth" concept, when a strokeWidth value != -1 is passed in. 42 AffineTransform markerContentTransformation(const AffineTransform& contentTransformation, const FloatPoint& origin, float strokeWidth = -1) const; 43 44 private: 45 virtual bool isSVGContainer() const { return true; } 46 virtual const char* renderName() const { return "RenderSVGViewportContainer"; } 47 48 AffineTransform viewportTransform() const; 49 virtual const AffineTransform& localToParentTransform() const; 50 51 virtual void calcViewport(); 52 53 virtual void applyViewportClip(PaintInfo&); 54 virtual bool pointIsInsideViewportClip(const FloatPoint& pointInParent); 55 56 FloatRect m_viewport; 57 mutable AffineTransform m_localToParentTransform; 58 }; 59 60 inline RenderSVGViewportContainer* toRenderSVGViewportContainer(RenderObject* object) 61 { 62 ASSERT(!object || !strcmp(object->renderName(), "RenderSVGViewportContainer")); 63 return static_cast<RenderSVGViewportContainer*>(object); 64 } 65 66 // This will catch anyone doing an unnecessary cast. 67 void toRenderSVGViewportContainer(const RenderSVGViewportContainer*); 68 69 } // namespace WebCore 70 71 #endif // ENABLE(SVG) 72 #endif // RenderSVGViewportContainer_h 73
