/* | |
Copyright (C) 2006 Oliver Hunt <oliver@nerget.com> | |
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(FILTERS) | |
#include "SVGFEDisplacementMapElement.h" | |
#include "MappedAttribute.h" | |
#include "SVGResourceFilter.h" | |
namespace WebCore { | |
SVGFEDisplacementMapElement::SVGFEDisplacementMapElement(const QualifiedName& tagName, Document* doc) | |
: SVGFilterPrimitiveStandardAttributes(tagName, doc) | |
, m_xChannelSelector(CHANNEL_A) | |
, m_yChannelSelector(CHANNEL_A) | |
{ | |
} | |
SVGFEDisplacementMapElement::~SVGFEDisplacementMapElement() | |
{ | |
} | |
ChannelSelectorType SVGFEDisplacementMapElement::stringToChannel(const String& key) | |
{ | |
if (key == "R") | |
return CHANNEL_R; | |
else if (key == "G") | |
return CHANNEL_G; | |
else if (key == "B") | |
return CHANNEL_B; | |
else if (key == "A") | |
return CHANNEL_A; | |
return CHANNEL_UNKNOWN; | |
} | |
void SVGFEDisplacementMapElement::parseMappedAttribute(MappedAttribute* attr) | |
{ | |
const String& value = attr->value(); | |
if (attr->name() == SVGNames::xChannelSelectorAttr) | |
setXChannelSelectorBaseValue(stringToChannel(value)); | |
else if (attr->name() == SVGNames::yChannelSelectorAttr) | |
setYChannelSelectorBaseValue(stringToChannel(value)); | |
else if (attr->name() == SVGNames::inAttr) | |
setIn1BaseValue(value); | |
else if (attr->name() == SVGNames::in2Attr) | |
setIn2BaseValue(value); | |
else if (attr->name() == SVGNames::scaleAttr) | |
setScaleBaseValue(value.toFloat()); | |
else | |
SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr); | |
} | |
void SVGFEDisplacementMapElement::synchronizeProperty(const QualifiedName& attrName) | |
{ | |
SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName); | |
if (attrName == anyQName()) { | |
synchronizeXChannelSelector(); | |
synchronizeYChannelSelector(); | |
synchronizeIn1(); | |
synchronizeIn2(); | |
synchronizeScale(); | |
return; | |
} | |
if (attrName == SVGNames::xChannelSelectorAttr) | |
synchronizeXChannelSelector(); | |
else if (attrName == SVGNames::yChannelSelectorAttr) | |
synchronizeYChannelSelector(); | |
else if (attrName == SVGNames::inAttr) | |
synchronizeIn1(); | |
else if (attrName == SVGNames::in2Attr) | |
synchronizeIn2(); | |
else if (attrName == SVGNames::scaleAttr) | |
synchronizeScale(); | |
} | |
bool SVGFEDisplacementMapElement::build(SVGResourceFilter* filterResource) | |
{ | |
FilterEffect* input1 = filterResource->builder()->getEffectById(in1()); | |
FilterEffect* input2 = filterResource->builder()->getEffectById(in2()); | |
if (!input1 || !input2) | |
return false; | |
RefPtr<FilterEffect> effect = FEDisplacementMap::create(input1, input2, static_cast<ChannelSelectorType>(xChannelSelector()), | |
static_cast<ChannelSelectorType>(yChannelSelector()), scale()); | |
filterResource->addFilterEffect(this, effect.release()); | |
return true; | |
} | |
} | |
#endif // ENABLE(SVG) | |
// vim:ts=4:noet |