103 lines
3.2 KiB
C++
103 lines
3.2 KiB
C++
#include "pch.h"
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#include "UseView.h"
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#include "UseView.g.cpp"
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#include "Utils.h"
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using namespace winrt;
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using namespace Microsoft::ReactNative;
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namespace winrt::RNSVG::implementation {
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void UseView::UpdateProperties(IJSValueReader const &reader, bool forceUpdate, bool invalidate) {
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const JSValueObject &propertyMap{JSValue::ReadObjectFrom(reader)};
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for (auto const &pair : propertyMap) {
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auto const &propertyName{pair.first};
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auto const &propertyValue{pair.second};
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if (propertyName == "href") {
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m_href = to_hstring(Utils::JSValueAsString(propertyValue));
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} else if (propertyName == "x") {
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m_x = SVGLength::From(propertyValue);
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} else if (propertyName == "y") {
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m_y = SVGLength::From(propertyValue);
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} else if (propertyName == "width") {
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m_width = SVGLength::From(propertyValue);
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} else if (propertyName == "height") {
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m_height = SVGLength::From(propertyValue);
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}
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}
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__super::UpdateProperties(reader, forceUpdate, invalidate);
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}
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void UseView::Draw(RNSVG::D2DDeviceContext const &context, Size const &size) {
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if (auto const &view{GetRenderableTemplate()}) {
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com_ptr<ID2D1DeviceContext> deviceContext{get_self<D2DDeviceContext>(context)->Get()};
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D2D1_MATRIX_3X2_F originalTransform{D2DHelpers::GetTransform(deviceContext.get())};
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auto transform{originalTransform};
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float x{Utils::GetAbsoluteLength(m_x, size.Width)};
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float y{Utils::GetAbsoluteLength(m_y, size.Height)};
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transform = D2D1::Matrix3x2F::Translation({x, y}) * originalTransform;
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// Combine new transform with existing one if it's set
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if (m_propSetMap[RNSVG::BaseProp::Matrix]) {
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transform = transform * D2DHelpers::AsD2DTransform(SvgTransform());
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}
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// Figure out any necessary transforms
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if (auto const &symbol{view.try_as<RNSVG::SymbolView>()}) {
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if (symbol.Align() != L"") {
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Rect vbRect{
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symbol.MinX(),
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symbol.MinY(),
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(symbol.MinX() + symbol.VbWidth()),
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(symbol.MinY() + symbol.VbHeight())};
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float elWidth{Utils::GetAbsoluteLength(m_width, size.Width)};
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float elHeight{Utils::GetAbsoluteLength(m_height, size.Height)};
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Rect elRect{0.0f, 0.0f, elWidth, elHeight};
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auto vbTransform{Utils::GetViewBoxTransformD2D(vbRect, elRect, to_string(symbol.Align()), symbol.MeetOrSlice())};
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transform = vbTransform * transform;
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}
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}
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deviceContext->SetTransform(transform);
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// Propagate props to template
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view.MergeProperties(*this);
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// Set opacity and render
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D2DHelpers::PushOpacityLayer(deviceContext.get(), nullptr, m_opacity);
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if (auto const &symbol{view.try_as<RNSVG::SymbolView>()}) {
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symbol.DrawGroup(context, size);
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} else {
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view.Draw(context, size);
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}
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deviceContext->PopLayer();
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// Restore original template props
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if (auto const &parent{view.SvgParent().try_as<RNSVG::RenderableView>()}) {
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view.MergeProperties(parent);
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}
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// Restore session transform
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deviceContext->SetTransform(originalTransform);
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}
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}
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RNSVG::IRenderable UseView::GetRenderableTemplate() {
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if (auto const &root{SvgRoot()}) {
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return root.Templates().TryLookup(m_href);
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}
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return nullptr;
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}
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} // namespace winrt::RNSVG::implementation
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