ES-DE/external/lunasvg/source/maskelement.cpp

78 lines
2.2 KiB
C++

#include "maskelement.h"
#include "parser.h"
#include "layoutcontext.h"
namespace lunasvg {
MaskElement::MaskElement()
: StyledElement(ElementID::Mask)
{
}
Length MaskElement::x() const
{
auto& value = get(PropertyID::X);
return Parser::parseLength(value, AllowNegativeLengths, Length::MinusTenPercent);
}
Length MaskElement::y() const
{
auto& value = get(PropertyID::Y);
return Parser::parseLength(value, AllowNegativeLengths, Length::MinusTenPercent);
}
Length MaskElement::width() const
{
auto& value = get(PropertyID::Width);
return Parser::parseLength(value, ForbidNegativeLengths, Length::OneTwentyPercent);
}
Length MaskElement::height() const
{
auto& value = get(PropertyID::Height);
return Parser::parseLength(value, ForbidNegativeLengths, Length::OneTwentyPercent);
}
Units MaskElement::maskUnits() const
{
auto& value = get(PropertyID::MaskUnits);
return Parser::parseUnits(value, Units::ObjectBoundingBox);
}
Units MaskElement::maskContentUnits() const
{
auto& value = get(PropertyID::MaskContentUnits);
return Parser::parseUnits(value, Units::UserSpaceOnUse);
}
std::unique_ptr<LayoutMask> MaskElement::getMasker(LayoutContext* context) const
{
auto w = this->width();
auto h = this->height();
if(w.isZero() || h.isZero() || context->hasReference(this))
return nullptr;
LayoutBreaker layoutBreaker(context, this);
auto masker = std::make_unique<LayoutMask>();
masker->units = maskUnits();
masker->contentUnits = maskContentUnits();
masker->opacity = opacity();
masker->clipper = context->getClipper(clip_path());
masker->masker = context->getMasker(mask());
LengthContext lengthContext(this, maskUnits());
masker->x = lengthContext.valueForLength(x(), LengthMode::Width);
masker->y = lengthContext.valueForLength(y(), LengthMode::Height);
masker->width = lengthContext.valueForLength(w, LengthMode::Width);
masker->height = lengthContext.valueForLength(h, LengthMode::Height);
layoutChildren(context, masker.get());
return masker;
}
std::unique_ptr<Node> MaskElement::clone() const
{
return cloneElement<MaskElement>();
}
} // namespace lunasvg