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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 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.
*/
#pragma once
#include "AffineTransform.h"
#include "FloatRect.h"
#include "LegacyRenderSVGModelObject.h"
#include "SVGMarkerData.h"
#include <memory>
#include <wtf/Vector.h>
namespace WebCore {
class FloatPoint;
class GraphicsContextStateSaver;
class RenderSVGResource;
class SVGGraphicsElement;
class LegacyRenderSVGShape : public LegacyRenderSVGModelObject {
WTF_MAKE_ISO_ALLOCATED(LegacyRenderSVGShape);
public:
enum PointCoordinateSpace {
GlobalCoordinateSpace,
LocalCoordinateSpace
};
LegacyRenderSVGShape(SVGGraphicsElement&, RenderStyle&&);
virtual ~LegacyRenderSVGShape();
inline SVGGraphicsElement& graphicsElement() const;
void setNeedsShapeUpdate() { m_needsShapeUpdate = true; }
void setNeedsBoundariesUpdate() final { m_needsBoundariesUpdate = true; }
bool needsBoundariesUpdate() final { return m_needsBoundariesUpdate; }
void setNeedsTransformUpdate() final { m_needsTransformUpdate = true; }
virtual void fillShape(GraphicsContext&) const;
virtual void strokeShape(GraphicsContext&) const;
virtual bool isRenderingDisabled() const = 0;
bool isPointInFill(const FloatPoint&);
bool isPointInStroke(const FloatPoint&);
float getTotalLength() const;
FloatPoint getPointAtLength(float distance) const;
bool hasPath() const { return m_path.get(); }
Path& path() const
{
ASSERT(m_path);
return *m_path;
}
void clearPath() { m_path = nullptr; }
protected:
void element() const = delete;
virtual void updateShapeFromElement();
virtual bool isEmpty() const;
virtual bool shapeDependentStrokeContains(const FloatPoint&, PointCoordinateSpace = GlobalCoordinateSpace);
virtual bool shapeDependentFillContains(const FloatPoint&, const WindRule) const;
float strokeWidth() const;
bool hasSmoothStroke() const;
inline bool hasNonScalingStroke() const;
AffineTransform nonScalingStrokeTransform() const;
Path* nonScalingStrokePath(const Path*, const AffineTransform&) const;
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 = WindRule::NonZero);
bool strokeContains(const FloatPoint&, bool requiresStroke = true);
FloatRect repaintRectInLocalCoordinates() const final { return m_repaintBoundingBox; }
const AffineTransform& localToParentTransform() const final { return m_localTransform; }
AffineTransform localTransform() const final { return m_localTransform; }
bool isLegacySVGShape() const final { return true; }
bool canHaveChildren() const final { return false; }
ASCIILiteral renderName() const override { return "RenderSVGShape"_s; }
void layout() final;
void paint(PaintInfo&, const LayoutPoint&) final;
void addFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) const final;
bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) final;
FloatRect objectBoundingBox() const final { return m_fillBoundingBox; }
FloatRect strokeBoundingBox() const final { return m_strokeBoundingBox; }
FloatRect calculateObjectBoundingBox() const;
FloatRect calculateStrokeBoundingBox() const;
void updateRepaintBoundingBox();
bool setupNonScalingStrokeContext(AffineTransform&, GraphicsContextStateSaver&);
bool shouldGenerateMarkerPositions() const;
FloatRect markerRect(float strokeWidth) const;
std::unique_ptr<Path> createPath() const;
void processMarkerPositions();
void fillShape(const RenderStyle&, GraphicsContext&);
void strokeShapeInternal(const RenderStyle&, GraphicsContext&);
void strokeShape(const RenderStyle&, GraphicsContext&);
void fillStrokeMarkers(PaintInfo&);
void drawMarkers(PaintInfo&);
private:
FloatRect m_repaintBoundingBox;
FloatRect m_repaintBoundingBoxExcludingShadow;
bool m_needsBoundariesUpdate : 1;
bool m_needsShapeUpdate : 1;
bool m_needsTransformUpdate : 1;
AffineTransform m_localTransform;
std::unique_ptr<Path> m_path;
Vector<MarkerPosition> m_markerPositions;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(LegacyRenderSVGShape, isLegacySVGShape())
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