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/*
Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005 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;
}
float SVGRenderStyle::cssPrimitiveToLength(const RenderObject* item, CSSValue* value, float defaultValue)
{
CSSPrimitiveValue* primitive = static_cast<CSSPrimitiveValue*>(value);
unsigned short cssType = (primitive ? primitive->primitiveType() : (unsigned short) CSSPrimitiveValue::CSS_UNKNOWN);
if (!(cssType > CSSPrimitiveValue::CSS_UNKNOWN && cssType <= CSSPrimitiveValue::CSS_PC))
return defaultValue;
if (cssType == CSSPrimitiveValue::CSS_PERCENTAGE) {
SVGStyledElement* element = static_cast<SVGStyledElement*>(item->node());
SVGElement* viewportElement = (element ? element->viewportElement() : 0);
if (viewportElement) {
float result = primitive->getFloatValue() / 100.0f;
return SVGLength::PercentageOfViewport(result, element, LengthModeOther);
}
}
return primitive->computeLengthFloat(const_cast<RenderStyle*>(item->style()), item->document()->documentElement()->renderStyle());
}
static void getSVGShadowExtent(ShadowData* shadow, int& top, int& right, int& bottom, int& left)
{
top = 0;
right = 0;
bottom = 0;
left = 0;
int blurAndSpread = shadow->blur() + shadow->spread();
top = min(top, shadow->y() - blurAndSpread);
right = max(right, shadow->x() + blurAndSpread);
bottom = max(bottom, shadow->y() + blurAndSpread);
left = min(left, shadow->x() - blurAndSpread);
}
void SVGRenderStyle::inflateForShadow(IntRect& repaintRect) const
{
ShadowData* svgShadow = shadow();
if (!svgShadow)
return;
FloatRect repaintFloatRect = FloatRect(repaintRect);
inflateForShadow(repaintFloatRect);
repaintRect = enclosingIntRect(repaintFloatRect);
}
void SVGRenderStyle::inflateForShadow(FloatRect& repaintRect) const
{
ShadowData* svgShadow = shadow();
if (!svgShadow)
return;
int shadowTop;
int shadowRight;
int shadowBottom;
int shadowLeft;
getSVGShadowExtent(svgShadow, shadowTop, shadowRight, shadowBottom, shadowLeft);
int overflowLeft = repaintRect.x() + shadowLeft;
int overflowRight = repaintRect.right() + shadowRight;
int overflowTop = repaintRect.y() + shadowTop;
int overflowBottom = repaintRect.bottom() + shadowBottom;
repaintRect.setX(overflowLeft);
repaintRect.setY(overflowTop);
repaintRect.setWidth(overflowRight - overflowLeft);
repaintRect.setHeight(overflowBottom - overflowTop);
}
}
#endif // ENABLE(SVG)
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