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/*
* Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
* Copyright (C) 2005 Eric Seidel <eric@webkit.org>
* Copyright (C) 2006 Apple Computer, Inc
* Copyright (C) 2009 Google, Inc.
* Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
* Copyright (C) 2011 University of Szeged
*
* 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 RenderSVGShape_h
#define RenderSVGShape_h
#include "core/rendering/svg/RenderSVGModelObject.h"
#include "core/rendering/svg/SVGMarkerData.h"
#include "platform/geometry/FloatRect.h"
#include "platform/transforms/AffineTransform.h"
#include "wtf/OwnPtr.h"
#include "wtf/Vector.h"
namespace blink {
class FloatPoint;
class PointerEventsHitRules;
class SVGGraphicsElement;
enum ShapeGeometryCodePath {
PathGeometry,
RectGeometryFastPath,
EllipseGeometryFastPath
};
class RenderSVGShape : public RenderSVGModelObject {
public:
explicit RenderSVGShape(SVGGraphicsElement*);
virtual ~RenderSVGShape();
void setNeedsShapeUpdate() { m_needsShapeUpdate = true; }
virtual void setNeedsBoundariesUpdate() override final { m_needsBoundariesUpdate = true; }
virtual void setNeedsTransformUpdate() override final { m_needsTransformUpdate = true; }
bool nodeAtFloatPointInternal(const HitTestRequest&, const FloatPoint&, PointerEventsHitRules);
Path& path() const
{
ASSERT(m_path);
return *m_path;
}
bool hasPath() const { return m_path.get(); }
virtual bool isShapeEmpty() const { return path().isEmpty(); }
bool hasNonScalingStroke() const { return style()->svgStyle().vectorEffect() == VE_NON_SCALING_STROKE; }
Path* nonScalingStrokePath(const Path*, const AffineTransform&) const;
AffineTransform nonScalingStrokeTransform() const;
virtual AffineTransform localTransform() const override final { return m_localTransform ? *m_localTransform : RenderSVGModelObject::localTransform(); }
virtual const Vector<MarkerPosition>* markerPositions() const { return 0; }
float strokeWidth() const;
virtual ShapeGeometryCodePath geometryCodePath() const { return PathGeometry; }
virtual const Vector<FloatPoint>* zeroLengthLineCaps() const { return 0; }
virtual FloatRect objectBoundingBox() const override final { return m_fillBoundingBox; }
protected:
virtual void updateShapeFromElement();
virtual bool shapeDependentStrokeContains(const FloatPoint&);
virtual bool shapeDependentFillContains(const FloatPoint&, const WindRule) const;
// Give RenderSVGPath a hook for updating markers in updateShapeFromElement.
virtual void processMarkerPositions() { };
FloatRect m_fillBoundingBox;
FloatRect m_strokeBoundingBox;
private:
// Hit-detection separated for the fill and the stroke
bool fillContains(const FloatPoint&, bool requiresFill = true, const WindRule fillRule = RULE_NONZERO);
bool strokeContains(const FloatPoint&, bool requiresStroke = true);
virtual const AffineTransform& localToParentTransform() const override final { return m_localTransform ? *m_localTransform : RenderSVGModelObject::localToParentTransform(); }
virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectSVGShape || RenderSVGModelObject::isOfType(type); }
virtual const char* renderName() const override { return "RenderSVGShape"; }
virtual void layout() override final;
virtual void paint(const PaintInfo&, const LayoutPoint&) override final;
virtual void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset) const override final;
virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) override final;
virtual FloatRect strokeBoundingBox() const override final { return m_strokeBoundingBox; }
FloatRect calculateObjectBoundingBox() const;
FloatRect calculateStrokeBoundingBox() const;
void updatePaintInvalidationBoundingBox();
void updateLocalTransform();
private:
OwnPtr<AffineTransform> m_localTransform;
OwnPtr<Path> m_path;
bool m_needsBoundariesUpdate : 1;
bool m_needsShapeUpdate : 1;
bool m_needsTransformUpdate : 1;
};
DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGShape, isSVGShape());
}
#endif
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