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93 lines
2.8 KiB
93 lines
2.8 KiB
#include "pch.h"
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#include "RadialGradientView.h"
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#include "RadialGradientView.g.cpp"
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#include "Utils.h"
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using namespace winrt;
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using namespace Microsoft::Graphics::Canvas;
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using namespace Microsoft::ReactNative;
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namespace winrt::RNSVG::implementation {
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void RadialGradientView::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 == "fx") {
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m_fx = SVGLength::From(propertyValue);
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} else if (propertyName == "fy") {
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m_fy = SVGLength::From(propertyValue);
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} else if (propertyName == "rx") {
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m_rx = SVGLength::From(propertyValue);
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} else if (propertyName == "ry") {
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m_ry = SVGLength::From(propertyValue);
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} else if (propertyName == "cx") {
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m_cx = SVGLength::From(propertyValue);
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} else if (propertyName == "cy") {
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m_cy = SVGLength::From(propertyValue);
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} else if (propertyName == "gradient") {
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m_stops = Utils::JSValueAsStops(propertyValue);
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} else if (propertyName == "gradientUnits") {
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m_gradientUnits = Utils::JSValueAsBrushUnits(propertyValue);
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} else if (propertyName == "gradientTransform") {
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m_transformSet = true;
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m_transform = Utils::JSValueAsTransform(propertyValue);
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if (propertyValue.IsNull()) {
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m_transformSet = false;
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}
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}
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}
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__super::UpdateProperties(reader, forceUpdate, invalidate);
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SaveDefinition();
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}
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void RadialGradientView::Unload() {
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m_stops.clear();
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__super::Unload();
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}
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void RadialGradientView::CreateBrush() {
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auto const &canvas{SvgRoot().Canvas()};
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auto const &resourceCreator{canvas.try_as<ICanvasResourceCreator>()};
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Brushes::CanvasRadialGradientBrush brush{resourceCreator, m_stops};
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SetPoints(brush, {0, 0, canvas.Size().Width, canvas.Size().Height});
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if (m_transformSet) {
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brush.Transform(m_transform);
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}
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m_brush = brush;
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}
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void RadialGradientView::UpdateBounds() {
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if (m_gradientUnits == "objectBoundingBox") {
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SetPoints(m_brush.as<Brushes::CanvasRadialGradientBrush>(), m_bounds);
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}
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}
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void RadialGradientView::SetPoints(Brushes::CanvasRadialGradientBrush brush, Windows::Foundation::Rect const &bounds) {
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float rx{Utils::GetAbsoluteLength(m_rx, bounds.Width)};
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float ry{Utils::GetAbsoluteLength(m_ry, bounds.Height)};
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float fx{Utils::GetAbsoluteLength(m_fx, bounds.Width) + bounds.X};
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float fy{Utils::GetAbsoluteLength(m_fy, bounds.Height) + bounds.Y};
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float cx{Utils::GetAbsoluteLength(m_cx, bounds.Width) + bounds.X};
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float cy{Utils::GetAbsoluteLength(m_cy, bounds.Height) + bounds.Y};
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brush.RadiusX(rx);
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brush.RadiusY(ry);
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brush.Center({cx, cy});
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brush.OriginOffset({(fx - cx), (fy - cy)});
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}
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} // namespace winrt::RNSVG::implementation
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