SVGFilterElement.cpp [plain text]
#include "config.h"
#if ENABLE(SVG) && ENABLE(SVG_EXPERIMENTAL_FEATURES)
#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)
{
setXBaseValue(SVGLength(this, LengthModeWidth, "-10%"));
setYBaseValue(SVGLength(this, LengthModeHeight, "-10%"));
setWidthBaseValue(SVGLength(this, LengthModeWidth, "120%"));
setHeightBaseValue(SVGLength(this, LengthModeHeight, "120%"));
}
SVGFilterElement::~SVGFilterElement()
{
}
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, int, Enumeration, enumeration, FilterUnits, filterUnits, SVGNames::filterUnitsAttr.localName(), m_filterUnits)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, int, Enumeration, enumeration, PrimitiveUnits, primitiveUnits, SVGNames::primitiveUnitsAttr.localName(), m_primitiveUnits)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, X, x, SVGNames::xAttr.localName(), m_x)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, Y, y, SVGNames::yAttr.localName(), m_y)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, Width, width, SVGNames::widthAttr.localName(), m_width)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, SVGLength, Length, length, Height, height, SVGNames::heightAttr.localName(), m_height)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, long, Integer, integer, FilterResX, filterResX, "filterResX", m_filterResX)
ANIMATED_PROPERTY_DEFINITIONS(SVGFilterElement, long, Integer, integer, FilterResY, filterResY, "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, w, h;
if (filterBBoxMode && x().unitType() == LengthTypePercentage)
_x = x().valueInSpecifiedUnits() / 100.0;
else
_x = x().value();
if (filterBBoxMode && y().unitType() == LengthTypePercentage)
_y = y().valueInSpecifiedUnits() / 100.0;
else
_y = y().value();
if (filterBBoxMode && width().unitType() == LengthTypePercentage)
w = width().valueInSpecifiedUnits() / 100.0;
else
w = width().value();
if (filterBBoxMode && height().unitType() == LengthTypePercentage)
h = height().valueInSpecifiedUnits() / 100.0;
else
h = height().value();
m_filter->setFilterRect(FloatRect(_x, _y, w, h));
bool primitiveBBoxMode = primitiveUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX;
m_filter->setEffectBoundingBoxMode(primitiveBBoxMode);
m_filter->clearEffects();
for (Node* n = firstChild(); n != 0; n = n->nextSibling()) {
SVGElement* element = svg_dynamic_cast(n);
if (element && element->isFilterEffect()) {
SVGFilterPrimitiveStandardAttributes* fe = static_cast<SVGFilterPrimitiveStandardAttributes*>(element);
if (fe->filterEffect())
m_filter->addFilterEffect(fe->filterEffect());
}
}
return m_filter.get();
}
}
#endif // ENABLE(SVG)