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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* 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 SVGResources_h
#define SVGResources_h
#if ENABLE(SVG)
#include <wtf/HashSet.h>
#include <wtf/Noncopyable.h>
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
namespace WebCore {
class Document;
class RenderObject;
class RenderSVGResourceClipper;
class RenderSVGResourceContainer;
class RenderSVGResourceFilter;
class RenderSVGResourceMarker;
class RenderSVGResourceMasker;
class SVGRenderStyle;
// Holds a set of resources associated with a RenderObject
class SVGResources {
WTF_MAKE_NONCOPYABLE(SVGResources); WTF_MAKE_FAST_ALLOCATED;
public:
SVGResources();
bool buildCachedResources(const RenderObject*, const SVGRenderStyle*);
// Ordinary resources
RenderSVGResourceClipper* clipper() const { return m_clipperFilterMaskerData ? m_clipperFilterMaskerData->clipper : 0; }
RenderSVGResourceMarker* markerStart() const { return m_markerData ? m_markerData->markerStart : 0; }
RenderSVGResourceMarker* markerMid() const { return m_markerData ? m_markerData->markerMid : 0; }
RenderSVGResourceMarker* markerEnd() const { return m_markerData ? m_markerData->markerEnd : 0; }
RenderSVGResourceMasker* masker() const { return m_clipperFilterMaskerData ? m_clipperFilterMaskerData->masker : 0; }
RenderSVGResourceFilter* filter() const
{
#if ENABLE(FILTERS)
if (m_clipperFilterMaskerData)
return m_clipperFilterMaskerData->filter;
#endif
return 0;
}
// Paint servers
RenderSVGResourceContainer* fill() const { return m_fillStrokeData ? m_fillStrokeData->fill : 0; }
RenderSVGResourceContainer* stroke() const { return m_fillStrokeData ? m_fillStrokeData->stroke : 0; }
// Chainable resources - linked through xlink:href
RenderSVGResourceContainer* linkedResource() const { return m_linkedResource; }
void buildSetOfResources(HashSet<RenderSVGResourceContainer*>&);
// Methods operating on all cached resources
void removeClientFromCache(RenderObject*, bool markForInvalidation = true) const;
void resourceDestroyed(RenderSVGResourceContainer*);
#ifndef NDEBUG
void dump(const RenderObject*);
#endif
private:
friend class SVGResourcesCycleSolver;
// Only used by SVGResourcesCache cycle detection logic
void resetClipper();
#if ENABLE(FILTERS)
void resetFilter();
#endif
void resetMarkerStart();
void resetMarkerMid();
void resetMarkerEnd();
void resetMasker();
void resetFill();
void resetStroke();
void resetLinkedResource();
private:
bool setClipper(RenderSVGResourceClipper*);
#if ENABLE(FILTERS)
bool setFilter(RenderSVGResourceFilter*);
#endif
bool setMarkerStart(RenderSVGResourceMarker*);
bool setMarkerMid(RenderSVGResourceMarker*);
bool setMarkerEnd(RenderSVGResourceMarker*);
bool setMasker(RenderSVGResourceMasker*);
bool setFill(RenderSVGResourceContainer*);
bool setStroke(RenderSVGResourceContainer*);
bool setLinkedResource(RenderSVGResourceContainer*);
// From SVG 1.1 2nd Edition
// clipper: 'container elements' and 'graphics elements'
// filter: 'container elements' and 'graphics elements'
// masker: 'container elements' and 'graphics elements'
// -> a, circle, defs, ellipse, glyph, g, image, line, marker, mask, missing-glyph, path, pattern, polygon, polyline, rect, svg, switch, symbol, text, use
struct ClipperFilterMaskerData {
WTF_MAKE_FAST_ALLOCATED;
public:
ClipperFilterMaskerData()
: clipper(0)
#if ENABLE(FILTERS)
, filter(0)
#endif
, masker(0)
{
}
static PassOwnPtr<ClipperFilterMaskerData> create()
{
return adoptPtr(new ClipperFilterMaskerData);
}
RenderSVGResourceClipper* clipper;
#if ENABLE(FILTERS)
RenderSVGResourceFilter* filter;
#endif
RenderSVGResourceMasker* masker;
};
// From SVG 1.1 2nd Edition
// marker: line, path, polygon, polyline
struct MarkerData {
WTF_MAKE_FAST_ALLOCATED;
public:
MarkerData()
: markerStart(0)
, markerMid(0)
, markerEnd(0)
{
}
static PassOwnPtr<MarkerData> create()
{
return adoptPtr(new MarkerData);
}
RenderSVGResourceMarker* markerStart;
RenderSVGResourceMarker* markerMid;
RenderSVGResourceMarker* markerEnd;
};
// From SVG 1.1 2nd Edition
// fill: 'shapes' and 'text content elements'
// stroke: 'shapes' and 'text content elements'
// -> altGlyph, circle, ellipse, line, path, polygon, polyline, rect, text, textPath, tref, tspan
struct FillStrokeData {
WTF_MAKE_FAST_ALLOCATED;
public:
FillStrokeData()
: fill(0)
, stroke(0)
{
}
static PassOwnPtr<FillStrokeData> create()
{
return adoptPtr(new FillStrokeData);
}
RenderSVGResourceContainer* fill;
RenderSVGResourceContainer* stroke;
};
OwnPtr<ClipperFilterMaskerData> m_clipperFilterMaskerData;
OwnPtr<MarkerData> m_markerData;
OwnPtr<FillStrokeData> m_fillStrokeData;
RenderSVGResourceContainer* m_linkedResource;
};
}
#endif
#endif
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