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https://github.com/RetroDECK/ES-DE.git
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32546b5874
git-subtree-dir: external/lunasvg git-subtree-split: 7417baa0aff477f361e44e2aa793fdb0c7aae352
100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
#include "useelement.h"
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#include "parser.h"
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#include "layoutcontext.h"
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#include "gelement.h"
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#include "svgelement.h"
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namespace lunasvg {
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UseElement::UseElement()
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: GraphicsElement(ElementId::Use)
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{
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}
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Length UseElement::x() const
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{
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auto& value = get(PropertyId::X);
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return Parser::parseLength(value, AllowNegativeLengths, Length::Zero);
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}
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Length UseElement::y() const
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{
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auto& value = get(PropertyId::Y);
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return Parser::parseLength(value, AllowNegativeLengths, Length::Zero);
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}
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Length UseElement::width() const
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{
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auto& value = get(PropertyId::Width);
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return Parser::parseLength(value, ForbidNegativeLengths, Length::HundredPercent);
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}
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Length UseElement::height() const
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{
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auto& value = get(PropertyId::Height);
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return Parser::parseLength(value, ForbidNegativeLengths, Length::HundredPercent);
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}
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std::string UseElement::href() const
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{
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auto& value = get(PropertyId::Href);
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return Parser::parseHref(value);
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}
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void UseElement::transferWidthAndHeight(Element* element) const
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{
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auto& width = get(PropertyId::Width);
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auto& height = get(PropertyId::Height);
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element->set(PropertyId::Width, width, 0x0);
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element->set(PropertyId::Height, height, 0x0);
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}
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void UseElement::layout(LayoutContext* context, LayoutContainer* current) const
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{
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if(isDisplayNone())
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return;
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auto ref = context->getElementById(href());
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if(ref == nullptr || context->hasReference(ref) || (current->id == LayoutId::ClipPath && !ref->isGeometry()))
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return;
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LayoutBreaker layoutBreaker(context, ref);
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auto group = std::make_unique<GElement>();
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group->parent = parent;
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group->properties = properties;
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LengthContext lengthContext(this);
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auto _x = lengthContext.valueForLength(x(), LengthMode::Width);
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auto _y = lengthContext.valueForLength(y(), LengthMode::Height);
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auto transform = get(PropertyId::Transform);
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transform += "translate(";
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transform += std::to_string(_x);
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transform += ' ';
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transform += std::to_string(_y);
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transform += ')';
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group->set(PropertyId::Transform, transform, 0x10);
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if(ref->id == ElementId::Svg || ref->id == ElementId::Symbol)
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{
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auto element = ref->cloneElement<SVGElement>();
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transferWidthAndHeight(element.get());
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group->addChild(std::move(element));
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}
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else
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{
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group->addChild(ref->clone());
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}
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group->layout(context, current);
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}
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std::unique_ptr<Node> UseElement::clone() const
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{
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return cloneElement<UseElement>();
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}
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} // namespace lunasvg
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