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/*
Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
This file is part of the KDE project
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) && ENABLE(SVG_FILTERS)
#include "SVGFilterElement.h"
#include "Attr.h"
#include "SVGResourceFilter.h"
#include "SVGFilterPrimitiveStandardAttributes.h"
#include "SVGLength.h"
#include "SVGNames.h"
#include "SVGUnitTypes.h"
namespace WebCore {
SVGFilterElement::SVGFilterElement(const QualifiedName& tagName, Document* doc)
: SVGStyledElement(tagName, doc)
, SVGURIReference()
, SVGLangSpace()
, SVGExternalResourcesRequired()
, m_filterUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
, m_primitiveUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
, m_x(this, LengthModeWidth)
, m_y(this, LengthModeHeight)
, m_width(this, LengthModeWidth)
, m_height(this, LengthModeHeight)
, m_filterResX(0)
, m_filterResY(0)
{
// Spec: If the attribute is not specified, the effect is as if a value of "-10%" were specified.
setXBaseValue(SVGLength(this, LengthModeWidth, "-10%"));
setYBaseValue(SVGLength(this, LengthModeHeight, "-10%"));
// Spec: If the attribute is not specified, the effect is as if a value of "120%" were specified.
setWidthBaseValue(SVGLength(this, LengthModeWidth, "120%"));
setHeightBaseValue(SVGLength(this, LengthModeHeight, "120%"));
}
SVGFilterElement::~SVGFilterElement()
{
}
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, int, Enumeration, enumeration, FilterUnits, filterUnits, SVGNames::filterUnitsAttr, m_filterUnits)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, int, Enumeration, enumeration, PrimitiveUnits, primitiveUnits, SVGNames::primitiveUnitsAttr, m_primitiveUnits)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, X, x, SVGNames::xAttr, m_x)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, Y, y, SVGNames::yAttr, m_y)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, Width, width, SVGNames::widthAttr, m_width)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, Height, height, SVGNames::heightAttr, m_height)
ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGFilterElement, long, Integer, integer, FilterResX, filterResX, SVGNames::filterResAttr, "filterResX", m_filterResX)
ANIMATED_PROPERTY_DEFINITIONS_WITH_CUSTOM_IDENTIFIER(SVGFilterElement, long, Integer, integer, FilterResY, filterResY, SVGNames::filterResAttr, "filterResY", m_filterResY)
void SVGFilterElement::setFilterRes(unsigned long, unsigned long) const
{
}
void SVGFilterElement::parseMappedAttribute(MappedAttribute* attr)
{
const String& value = attr->value();
if (attr->name() == SVGNames::filterUnitsAttr) {
if (value == "userSpaceOnUse")
setFilterUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
else if (value == "objectBoundingBox")
setFilterUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
} else if (attr->name() == SVGNames::primitiveUnitsAttr) {
if (value == "userSpaceOnUse")
setPrimitiveUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
else if (value == "objectBoundingBox")
setPrimitiveUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
} else if (attr->name() == SVGNames::xAttr)
setXBaseValue(SVGLength(this, LengthModeWidth, value));
else if (attr->name() == SVGNames::yAttr)
setYBaseValue(SVGLength(this, LengthModeHeight, value));
else if (attr->name() == SVGNames::widthAttr)
setWidthBaseValue(SVGLength(this, LengthModeWidth, value));
else if (attr->name() == SVGNames::heightAttr)
setHeightBaseValue(SVGLength(this, LengthModeHeight, value));
else {
if (SVGURIReference::parseMappedAttribute(attr)) return;
if (SVGLangSpace::parseMappedAttribute(attr)) return;
if (SVGExternalResourcesRequired::parseMappedAttribute(attr)) return;
SVGStyledElement::parseMappedAttribute(attr);
}
}
SVGResource* SVGFilterElement::canvasResource()
{
if (!attached())
return 0;
if (!m_filter)
m_filter = new SVGResourceFilter();
bool filterBBoxMode = filterUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX;
m_filter->setFilterBoundingBoxMode(filterBBoxMode);
float _x, _y, _width, _height;
if (filterBBoxMode) {
_x = x().valueAsPercentage();
_y = y().valueAsPercentage();
_width = width().valueAsPercentage();
_height = height().valueAsPercentage();
} else {
m_filter->setXBoundingBoxMode(x().unitType() == LengthTypePercentage);
m_filter->setYBoundingBoxMode(y().unitType() == LengthTypePercentage);
_x = x().value();
_y = y().value();
_width = width().value();
_height = height().value();
}
m_filter->setFilterRect(FloatRect(_x, _y, _width, _height));
bool primitiveBBoxMode = primitiveUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX;
m_filter->setEffectBoundingBoxMode(primitiveBBoxMode);
// TODO : use switch/case instead?
m_filter->clearEffects();
for (Node* n = firstChild(); n != 0; n = n->nextSibling()) {
SVGElement* element = 0;
if (n->isSVGElement())
element = static_cast<SVGElement*>(n);
if (element && element->isFilterEffect()) {
SVGFilterPrimitiveStandardAttributes* filterAttributes = static_cast<SVGFilterPrimitiveStandardAttributes*>(element);
SVGFilterEffect* filterEffect = filterAttributes->filterEffect(m_filter.get());
if (!filterEffect)
continue;
m_filter->addFilterEffect(filterEffect);
}
}
return m_filter.get();
}
}
#endif // ENABLE(SVG)
// vim:ts=4:noet
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