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/*
Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
2005 Alexander Kellett <lypanov@kde.org>
2009 Dirk Schulze <krit@webkit.org>
Copyright (C) Research In Motion Limited 2009-2010. 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.
*/
#include "config.h"
#if ENABLE(SVG)
#include "SVGMaskElement.h"
#include "Attribute.h"
#include "CSSStyleSelector.h"
#include "RenderSVGResourceMasker.h"
#include "SVGLength.h"
#include "SVGNames.h"
#include "SVGRenderSupport.h"
#include "SVGUnitTypes.h"
using namespace std;
namespace WebCore {
SVGMaskElement::SVGMaskElement(const QualifiedName& tagName, Document* doc)
: SVGStyledLocatableElement(tagName, doc)
, SVGTests()
, SVGLangSpace()
, SVGExternalResourcesRequired()
, m_maskUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
, m_maskContentUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
, m_x(LengthModeWidth, "-10%")
, m_y(LengthModeHeight, "-10%")
, m_width(LengthModeWidth, "120%")
, m_height(LengthModeHeight, "120%")
{
// Spec: If the x/y attribute is not specified, the effect is as if a value of "-10%" were specified.
// Spec: If the width/height attribute is not specified, the effect is as if a value of "120%" were specified.
}
SVGMaskElement::~SVGMaskElement()
{
}
void SVGMaskElement::parseMappedAttribute(Attribute* attr)
{
if (attr->name() == SVGNames::maskUnitsAttr) {
if (attr->value() == "userSpaceOnUse")
setMaskUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
else if (attr->value() == "objectBoundingBox")
setMaskUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
} else if (attr->name() == SVGNames::maskContentUnitsAttr) {
if (attr->value() == "userSpaceOnUse")
setMaskContentUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
else if (attr->value() == "objectBoundingBox")
setMaskContentUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
} else if (attr->name() == SVGNames::xAttr)
setXBaseValue(SVGLength(LengthModeWidth, attr->value()));
else if (attr->name() == SVGNames::yAttr)
setYBaseValue(SVGLength(LengthModeHeight, attr->value()));
else if (attr->name() == SVGNames::widthAttr)
setWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));
else if (attr->name() == SVGNames::heightAttr)
setHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));
else {
if (SVGTests::parseMappedAttribute(attr))
return;
if (SVGLangSpace::parseMappedAttribute(attr))
return;
if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
return;
SVGStyledElement::parseMappedAttribute(attr);
}
}
void SVGMaskElement::svgAttributeChanged(const QualifiedName& attrName)
{
SVGStyledElement::svgAttributeChanged(attrName);
bool invalidateClients = false;
if (attrName == SVGNames::xAttr
|| attrName == SVGNames::yAttr
|| attrName == SVGNames::widthAttr
|| attrName == SVGNames::heightAttr) {
invalidateClients = true;
updateRelativeLengthsInformation();
}
if (invalidateClients
|| attrName == SVGNames::maskUnitsAttr
|| attrName == SVGNames::maskContentUnitsAttr
|| SVGTests::isKnownAttribute(attrName)
|| SVGLangSpace::isKnownAttribute(attrName)
|| SVGExternalResourcesRequired::isKnownAttribute(attrName)
|| SVGStyledElement::isKnownAttribute(attrName))
invalidateResourceClients();
}
void SVGMaskElement::synchronizeProperty(const QualifiedName& attrName)
{
SVGStyledElement::synchronizeProperty(attrName);
if (attrName == anyQName()) {
synchronizeMaskUnits();
synchronizeMaskContentUnits();
synchronizeX();
synchronizeY();
synchronizeExternalResourcesRequired();
return;
}
if (attrName == SVGNames::maskUnitsAttr)
synchronizeMaskUnits();
else if (attrName == SVGNames::maskContentUnitsAttr)
synchronizeMaskContentUnits();
else if (attrName == SVGNames::xAttr)
synchronizeX();
else if (attrName == SVGNames::yAttr)
synchronizeY();
else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
synchronizeExternalResourcesRequired();
}
void SVGMaskElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
{
SVGStyledElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
if (!changedByParser)
invalidateResourceClients();
}
FloatRect SVGMaskElement::maskBoundingBox(const FloatRect& objectBoundingBox) const
{
FloatRect maskBBox;
if (maskUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
maskBBox = FloatRect(x().valueAsPercentage() * objectBoundingBox.width() + objectBoundingBox.x(),
y().valueAsPercentage() * objectBoundingBox.height() + objectBoundingBox.y(),
width().valueAsPercentage() * objectBoundingBox.width(),
height().valueAsPercentage() * objectBoundingBox.height());
else
maskBBox = FloatRect(x().value(this),
y().value(this),
width().value(this),
height().value(this));
return maskBBox;
}
RenderObject* SVGMaskElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderSVGResourceMasker(this);
}
bool SVGMaskElement::selfHasRelativeLengths() const
{
return x().isRelative()
|| y().isRelative()
|| width().isRelative()
|| height().isRelative();
}
}
#endif // ENABLE(SVG)
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