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/*
Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2010 Rob Buis <buis@kde.org>
Copyright (C) Research In Motion Limited 2010. All rights reserved.
Based on khtml code by:
Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
Copyright (C) 2002-2003 Dirk Mueller (mueller@kde.org)
Copyright (C) 2002 Apple Computer, Inc.
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.
*/
#include "config.h"
#if ENABLE(SVG)
#include "SVGRenderStyle.h"
#include "CSSPrimitiveValue.h"
#include "CSSValueList.h"
#include "IntRect.h"
#include "NodeRenderStyle.h"
#include "SVGStyledElement.h"
using namespace std;
namespace WebCore {
SVGRenderStyle::SVGRenderStyle()
{
static SVGRenderStyle* defaultStyle = new SVGRenderStyle(CreateDefault);
fill = defaultStyle->fill;
stroke = defaultStyle->stroke;
text = defaultStyle->text;
stops = defaultStyle->stops;
misc = defaultStyle->misc;
shadowSVG = defaultStyle->shadowSVG;
inheritedResources = defaultStyle->inheritedResources;
resources = defaultStyle->resources;
setBitDefaults();
}
SVGRenderStyle::SVGRenderStyle(CreateDefaultType)
{
setBitDefaults();
fill.init();
stroke.init();
text.init();
stops.init();
misc.init();
shadowSVG.init();
inheritedResources.init();
resources.init();
}
SVGRenderStyle::SVGRenderStyle(const SVGRenderStyle& other)
: RefCounted<SVGRenderStyle>()
{
fill = other.fill;
stroke = other.stroke;
text = other.text;
stops = other.stops;
misc = other.misc;
shadowSVG = other.shadowSVG;
inheritedResources = other.inheritedResources;
resources = other.resources;
svg_inherited_flags = other.svg_inherited_flags;
svg_noninherited_flags = other.svg_noninherited_flags;
}
SVGRenderStyle::~SVGRenderStyle()
{
}
bool SVGRenderStyle::operator==(const SVGRenderStyle& other) const
{
return fill == other.fill
&& stroke == other.stroke
&& text == other.text
&& stops == other.stops
&& misc == other.misc
&& shadowSVG == other.shadowSVG
&& inheritedResources == other.inheritedResources
&& resources == other.resources
&& svg_inherited_flags == other.svg_inherited_flags
&& svg_noninherited_flags == other.svg_noninherited_flags;
}
bool SVGRenderStyle::inheritedNotEqual(const SVGRenderStyle* other) const
{
return fill != other->fill
|| stroke != other->stroke
|| text != other->text
|| inheritedResources != other->inheritedResources
|| svg_inherited_flags != other->svg_inherited_flags;
}
void SVGRenderStyle::inheritFrom(const SVGRenderStyle* svgInheritParent)
{
if (!svgInheritParent)
return;
fill = svgInheritParent->fill;
stroke = svgInheritParent->stroke;
text = svgInheritParent->text;
inheritedResources = svgInheritParent->inheritedResources;
svg_inherited_flags = svgInheritParent->svg_inherited_flags;
}
void SVGRenderStyle::copyNonInheritedFrom(const SVGRenderStyle* other)
{
svg_noninherited_flags = other->svg_noninherited_flags;
stops = other->stops;
misc = other->misc;
shadowSVG = other->shadowSVG;
resources = other->resources;
}
StyleDifference SVGRenderStyle::diff(const SVGRenderStyle* other) const
{
// NOTE: All comparisions that may return StyleDifferenceLayout have to go before those who return StyleDifferenceRepaint
// If kerning changes, we need a relayout, to force SVGCharacterData to be recalculated in the SVGRootInlineBox.
if (text != other->text)
return StyleDifferenceLayout;
// If resources change, we need a relayout, as the presence of resources influences the repaint rect.
if (resources != other->resources)
return StyleDifferenceLayout;
// If markers change, we need a relayout, as marker boundaries are cached in RenderSVGPath.
if (inheritedResources != other->inheritedResources)
return StyleDifferenceLayout;
// All text related properties influence layout.
if (svg_inherited_flags._textAnchor != other->svg_inherited_flags._textAnchor
|| svg_inherited_flags._writingMode != other->svg_inherited_flags._writingMode
|| svg_inherited_flags._glyphOrientationHorizontal != other->svg_inherited_flags._glyphOrientationHorizontal
|| svg_inherited_flags._glyphOrientationVertical != other->svg_inherited_flags._glyphOrientationVertical
|| svg_noninherited_flags.f._alignmentBaseline != other->svg_noninherited_flags.f._alignmentBaseline
|| svg_noninherited_flags.f._dominantBaseline != other->svg_noninherited_flags.f._dominantBaseline
|| svg_noninherited_flags.f._baselineShift != other->svg_noninherited_flags.f._baselineShift)
return StyleDifferenceLayout;
// Text related properties influence layout.
bool miscNotEqual = misc != other->misc;
if (miscNotEqual && misc->baselineShiftValue != other->misc->baselineShiftValue)
return StyleDifferenceLayout;
// These properties affect the cached stroke bounding box rects.
if (svg_inherited_flags._capStyle != other->svg_inherited_flags._capStyle
|| svg_inherited_flags._joinStyle != other->svg_inherited_flags._joinStyle)
return StyleDifferenceLayout;
// Shadow changes require relayouts, as they affect the repaint rects.
if (shadowSVG != other->shadowSVG)
return StyleDifferenceLayout;
// Some stroke properties, requires relayouts, as the cached stroke boundaries need to be recalculated.
if (stroke != other->stroke) {
if (stroke->width != other->stroke->width
|| stroke->paintType != other->stroke->paintType
|| stroke->paintColor != other->stroke->paintColor
|| stroke->paintUri != other->stroke->paintUri
|| stroke->miterLimit != other->stroke->miterLimit
|| stroke->dashArray != other->stroke->dashArray
|| stroke->dashOffset != other->stroke->dashOffset
|| stroke->visitedLinkPaintColor != other->stroke->visitedLinkPaintColor
|| stroke->visitedLinkPaintUri != other->stroke->visitedLinkPaintUri
|| stroke->visitedLinkPaintType != other->stroke->visitedLinkPaintType)
return StyleDifferenceLayout;
// Only the stroke-opacity case remains, where we only need a repaint.
ASSERT(stroke->opacity != other->stroke->opacity);
return StyleDifferenceRepaint;
}
// NOTE: All comparisions below may only return StyleDifferenceRepaint
// Painting related properties only need repaints.
if (miscNotEqual) {
if (misc->floodColor != other->misc->floodColor
|| misc->floodOpacity != other->misc->floodOpacity
|| misc->lightingColor != other->misc->lightingColor)
return StyleDifferenceRepaint;
}
// If fill changes, we just need to repaint. Fill boundaries are not influenced by this, only by the Path, that RenderSVGPath contains.
if (fill->paintType != other->fill->paintType || fill->paintColor != other->fill->paintColor
|| fill->paintUri != other->fill->paintUri || fill->opacity != other->fill->opacity)
return StyleDifferenceRepaint;
// If gradient stops change, we just need to repaint. Style updates are already handled through RenderSVGGradientSTop.
if (stops != other->stops)
return StyleDifferenceRepaint;
// Changes of these flags only cause repaints.
if (svg_inherited_flags._colorRendering != other->svg_inherited_flags._colorRendering
|| svg_inherited_flags._shapeRendering != other->svg_inherited_flags._shapeRendering
|| svg_inherited_flags._clipRule != other->svg_inherited_flags._clipRule
|| svg_inherited_flags._fillRule != other->svg_inherited_flags._fillRule
|| svg_inherited_flags._colorInterpolation != other->svg_inherited_flags._colorInterpolation
|| svg_inherited_flags._colorInterpolationFilters != other->svg_inherited_flags._colorInterpolationFilters)
return StyleDifferenceRepaint;
// FIXME: vector-effect is not taken into account in the layout-phase. Once this is fixed, we should relayout here.
if (svg_noninherited_flags.f._vectorEffect != other->svg_noninherited_flags.f._vectorEffect)
return StyleDifferenceRepaint;
if (svg_noninherited_flags.f.bufferedRendering != other->svg_noninherited_flags.f.bufferedRendering)
return StyleDifferenceRepaint;
if (svg_noninherited_flags.f.maskType != other->svg_noninherited_flags.f.maskType)
return StyleDifferenceRepaint;
return StyleDifferenceEqual;
}
}
#endif // ENABLE(SVG)
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