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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 SVGGraphicsElement;
class LegacyRenderSVGShape : public LegacyRenderSVGModelObject {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(LegacyRenderSVGShape);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(LegacyRenderSVGShape);
public:
friend FloatRect SVGRenderSupport::calculateApproximateStrokeBoundingBox(const RenderElement&);
enum class ShapeType : uint8_t {
Empty,
Path,
Line,
Rectangle,
RoundedRectangle,
Ellipse,
Circle,
};
enum PointCoordinateSpace {
GlobalCoordinateSpace,
LocalCoordinateSpace
};
LegacyRenderSVGShape(Type, SVGGraphicsElement&, RenderStyle&&);
virtual ~LegacyRenderSVGShape();
inline SVGGraphicsElement& graphicsElement() const;
inline Ref<SVGGraphicsElement> protectedGraphicsElement() const;
void setNeedsShapeUpdate() { m_needsShapeUpdate = true; }
void setNeedsBoundariesUpdate() final { m_needsBoundariesUpdate = true; }
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; }
ShapeType shapeType() const { return m_shapeType; }
protected:
void element() const = delete;
Path& ensurePath();
virtual void updateShapeFromElement() = 0;
virtual bool isEmpty() const;
virtual bool shapeDependentStrokeContains(const FloatPoint&, PointCoordinateSpace = GlobalCoordinateSpace);
virtual bool shapeDependentFillContains(const FloatPoint&, const WindRule) const;
float strokeWidth() const;
inline bool hasNonScalingStroke() const;
AffineTransform nonScalingStrokeTransform() const;
Path* nonScalingStrokePath(const Path*, const AffineTransform&) const;
virtual FloatRect adjustStrokeBoundingBoxForMarkersAndZeroLengthLinecaps(RepaintRectCalculation, FloatRect strokeBoundingBox) const { return strokeBoundingBox; }
FloatRect strokeBoundingBox() const final;
FloatRect approximateStrokeBoundingBox() const;
bool fillRequiresClip() const { return m_fillRequiresClip; }
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(RepaintRectCalculation = RepaintRectCalculation::Fast) const final;
const AffineTransform& localToParentTransform() const final { return m_localTransform; }
AffineTransform localTransform() const final { return m_localTransform; }
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 calculateStrokeBoundingBox() const;
void updateRepaintBoundingBox();
bool setupNonScalingStrokeContext(AffineTransform&, GraphicsContextStateSaver&);
FloatRect calculateApproximateStrokeBoundingBox() const;
std::unique_ptr<Path> createPath() const;
void fillShape(const RenderStyle&, GraphicsContext&);
void strokeShapeInternal(const RenderStyle&, GraphicsContext&);
void strokeShape(const RenderStyle&, GraphicsContext&);
void fillStrokeMarkers(PaintInfo&);
virtual void drawMarkers(PaintInfo&) { }
protected:
FloatRect m_fillBoundingBox;
mutable Markable<FloatRect, FloatRect::MarkableTraits> m_strokeBoundingBox;
mutable Markable<FloatRect, FloatRect::MarkableTraits> m_approximateStrokeBoundingBox;
private:
FloatRect m_repaintBoundingBox;
bool m_needsBoundariesUpdate : 1;
bool m_needsShapeUpdate : 1;
bool m_needsTransformUpdate : 1;
bool m_fillRequiresClip : 1 { true };
protected:
ShapeType m_shapeType : 3 { ShapeType::Empty };
private:
AffineTransform m_localTransform;
std::unique_ptr<Path> m_path;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(LegacyRenderSVGShape, isLegacyRenderSVGShape())
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