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#include "pch.h"
#include "RenderableView.h"
#if __has_include("RenderableView.g.cpp")
#include "RenderableView.g.cpp"
#endif
#include "JSValueXaml.h"
#include "SvgView.h"
#include "Utils.h"
using namespace winrt;
using namespace Microsoft::Graphics::Canvas;
using namespace Microsoft::ReactNative;
namespace winrt::RNSVG::implementation {
void RenderableView::UpdateProperties(IJSValueReader const &reader, bool forceUpdate, bool invalidate) {
const JSValueObject &propertyMap{JSValue::ReadObjectFrom(reader)};
auto const &parent{SvgParent().try_as<RNSVG::RenderableView>()};
auto const &propList{propertyMap.find("propList")};
if (propList != propertyMap.end()) {
m_propList.clear();
auto const &propValue{(*propList).second};
for (auto const &item : propValue.AsArray()) {
m_propList.push_back(Utils::JSValueAsString(item));
}
}
bool fillSet{std::find(m_propList.begin(), m_propList.end(), "fill") != m_propList.end()};
bool strokeSet{std::find(m_propList.begin(), m_propList.end(), "stroke") != m_propList.end()};
for (auto const &pair : propertyMap) {
auto const &propertyName{pair.first};
auto const &propertyValue{pair.second};
auto prop{RNSVG::BaseProp::Unknown};
// name is not a prop we want to propagate to child elements
// so we only set it when forceUpdate = true
if (propertyName == "name" && forceUpdate) {
if (parent) {
SvgRoot().Templates().Remove(m_id);
}
m_id = to_hstring(Utils::JSValueAsString(propertyValue));
if (parent) {
SaveDefinition();
}
} else if (propertyName == "strokeWidth") {
prop = RNSVG::BaseProp::StrokeWidth;
if (forceUpdate || !m_propSetMap[prop]) {
auto const &fallbackValue{parent ? parent.StrokeWidth() : RNSVG::SVGLength(1.0f, RNSVG::LengthType::Pixel)};
m_strokeWidth = Utils::JSValueAsSVGLength(propertyValue, fallbackValue);
}
} else if (propertyName == "strokeOpacity") {
prop = RNSVG::BaseProp::StrokeOpacity;
if (forceUpdate || !m_propSetMap[prop]) {
float fallbackValue{parent ? parent.StrokeOpacity() : 1.0f};
m_strokeOpacity = Utils::JSValueAsFloat(propertyValue, fallbackValue);
}
} else if (propertyName == "fillOpacity") {
prop = RNSVG::BaseProp::FillOpacity;
if (forceUpdate || !m_propSetMap[prop]) {
float fallbackValue{parent ? parent.FillOpacity() : 1.0f};
m_fillOpacity = Utils::JSValueAsFloat(propertyValue, fallbackValue);
}
} else if (propertyName == "stroke") {
prop = RNSVG::BaseProp::Stroke;
if (forceUpdate || !m_propSetMap[prop]) {
Windows::UI::Color fallbackColor{(parent && !strokeSet) ? parent.Stroke() : Windows::UI::Colors::Transparent()};
if (!m_strokeBrushId.empty()) {
m_strokeBrushId.clear();
}
SetColor(propertyValue.AsObject(), fallbackColor, propertyName);
}
} else if (propertyName == "fill") {
prop = RNSVG::BaseProp::Fill;
if (forceUpdate || !m_propSetMap[prop]) {
Windows::UI::Color fallbackColor{Windows::UI::Colors::Black()};
if (propertyValue.IsNull() && fillSet) {
fallbackColor = Windows::UI::Colors::Transparent();
} else if (parent) {
fallbackColor = parent.Fill();
}
if (!m_fillBrushId.empty()) {
m_fillBrushId.clear();
}
SetColor(propertyValue.AsObject(), fallbackColor, propertyName);
}
} else if (propertyName == "strokeLinecap") {
prop = RNSVG::BaseProp::StrokeLineCap;
if (forceUpdate || !m_propSetMap[prop]) {
if (propertyValue.IsNull()) {
m_strokeLineCap = parent.StrokeLineCap();
} else {
auto const &strokeLineCap{propertyValue.AsInt32()};
switch (strokeLineCap) {
case 2:
m_strokeLineCap = Geometry::CanvasCapStyle::Square;
break;
case 1:
m_strokeLineCap = Geometry::CanvasCapStyle::Round;
break;
case 0:
default:
m_strokeLineCap = Geometry::CanvasCapStyle::Flat;
break;
}
}
}
} else if (propertyName == "strokeLinejoin") {
prop = RNSVG::BaseProp::StrokeLineJoin;
if (forceUpdate || !m_propSetMap[prop]) {
if (propertyValue.IsNull()) {
m_strokeLineCap = parent.StrokeLineCap();
} else {
auto const &strokeLineJoin{propertyValue.AsInt32()};
switch (strokeLineJoin) {
case 2:
m_strokeLineJoin = Geometry::CanvasLineJoin::Bevel;
break;
case 1:
m_strokeLineJoin = Geometry::CanvasLineJoin::Round;
break;
case 0:
default:
m_strokeLineJoin = Geometry::CanvasLineJoin::Miter;
break;
}
}
}
} else if (propertyName == "fillRule") {
prop = RNSVG::BaseProp::FillRule;
if (forceUpdate || !m_propSetMap[prop]) {
if (propertyValue.IsNull()) {
m_fillRule = parent.FillRule();
} else {
auto const &fillRule{propertyValue.AsInt32()};
switch (fillRule) {
case 0:
m_fillRule = Geometry::CanvasFilledRegionDetermination::Alternate;
break;
case 1:
default:
m_fillRule = Geometry::CanvasFilledRegionDetermination::Winding;
break;
}
}
}
} else if (propertyName == "strokeDashoffset") {
prop = RNSVG::BaseProp::StrokeDashOffset;
if (forceUpdate || !m_propSetMap[prop]) {
float fallbackValue{parent ? parent.StrokeDashOffset() : 0.0f};
m_strokeDashOffset = Utils::JSValueAsFloat(propertyValue, fallbackValue);
}
} else if (propertyName == "strokeMiterlimit") {
prop = RNSVG::BaseProp::StrokeMiterLimit;
if (forceUpdate || !m_propSetMap[prop]) {
float fallbackValue{parent ? parent.StrokeMiterLimit() : 0.0f};
m_strokeMiterLimit = Utils::JSValueAsFloat(propertyValue, fallbackValue);
}
} else if (propertyName == "strokeDasharray") {
prop = RNSVG::BaseProp::StrokeDashArray;
if (forceUpdate || !m_propSetMap[prop]) {
if (propertyValue.IsNull()) {
m_strokeDashArray = parent.StrokeDashArray();
} else {
auto const &asArray = propertyValue.AsArray();
if (!asArray.empty() && (asArray.size() % 2 == 0)) {
m_strokeDashArray.Clear();
for (auto const &item : asArray) {
m_strokeDashArray.Append(SVGLength::From(item));
}
}
}
}
} else if (propertyName == "matrix") {
prop = RNSVG::BaseProp::Matrix;
if (forceUpdate) {
Numerics::float3x2 fallbackValue{parent ? parent.SvgTransform() : Numerics::make_float3x2_rotation(0)};
m_transformMatrix = Utils::JSValueAsTransform(propertyValue, fallbackValue);
}
} else if (propertyName == "opacity" && forceUpdate) {
m_opacity = Utils::JSValueAsFloat(propertyValue, 1.0f);
} else if (propertyName == "clipPath") {
m_clipPathId = to_hstring(Utils::JSValueAsString(propertyValue));
} else if (propertyName == "responsible") {
m_isResponsible = propertyValue.AsBoolean();
}
// forceUpdate = true means the property is being set on an element
// instead of being inherited from the parent.
if (forceUpdate && (prop != RNSVG::BaseProp::Unknown)) {
// If the propertyValue is null, that generally means the prop was deleted
bool propSet{!propertyValue.IsNull()};
// The exception being Fill and Stroke due to 'none' coming through as null
if (prop == RNSVG::BaseProp::Fill) {
propSet = fillSet;
} else if (prop == RNSVG::BaseProp::Stroke) {
propSet = strokeSet;
}
m_propSetMap[prop] = propSet;
}
}
m_recreateResources = true;
if (invalidate && SvgParent()) {
SvgRoot().InvalidateCanvas();
}
}
void RenderableView::SaveDefinition() {
if (m_id != L"") {
SvgRoot().Templates().Insert(m_id, *this);
}
}
void RenderableView::Render(UI::Xaml::CanvasControl const &canvas, CanvasDrawingSession const &session) {
auto const &resourceCreator{canvas.try_as<ICanvasResourceCreator>()};
if (m_recreateResources) {
CreateGeometry(canvas);
}
auto geometry{Geometry()};
if (m_propSetMap[RNSVG::BaseProp::Matrix]) {
geometry = geometry.Transform(SvgTransform());
}
auto const &clipPathGeometry{ClipPathGeometry()};
geometry = Geometry::CanvasGeometry::CreateGroup(resourceCreator, {geometry}, FillRule());
if (auto const &opacityLayer{clipPathGeometry ? session.CreateLayer(m_opacity, clipPathGeometry) : session.CreateLayer(m_opacity)}) {
if (auto const &fillLayer{session.CreateLayer(FillOpacity())}) {
auto const &fill{Utils::GetCanvasBrush(FillBrushId(), Fill(), SvgRoot(), geometry, resourceCreator)};
session.FillGeometry(geometry, fill);
fillLayer.Close();
}
if (auto const &strokeLayer{session.CreateLayer(StrokeOpacity())}) {
Geometry::CanvasStrokeStyle strokeStyle{};
strokeStyle.StartCap(StrokeLineCap());
strokeStyle.EndCap(StrokeLineCap());
strokeStyle.LineJoin(StrokeLineJoin());
strokeStyle.DashOffset(StrokeDashOffset());
strokeStyle.MiterLimit(StrokeMiterLimit());
float canvasDiagonal{Utils::GetCanvasDiagonal(canvas.Size())};
float strokeWidth{Utils::GetAbsoluteLength(StrokeWidth(), canvasDiagonal)};
strokeStyle.CustomDashStyle(Utils::GetAdjustedStrokeArray(StrokeDashArray(), strokeWidth, canvasDiagonal));
auto const &stroke{Utils::GetCanvasBrush(StrokeBrushId(), Stroke(), SvgRoot(), geometry, resourceCreator)};
session.DrawGeometry(geometry, stroke, strokeWidth, strokeStyle);
strokeLayer.Close();
}
opacityLayer.Close();
}
}
void RenderableView::MergeProperties(RNSVG::RenderableView const &other) {
for (auto const &prop : m_propSetMap) {
if (!prop.second) {
switch (prop.first) {
case RNSVG::BaseProp::Fill:
m_fill = other.Fill();
m_fillBrushId = other.FillBrushId();
break;
case RNSVG::BaseProp::FillOpacity:
m_fillOpacity = other.FillOpacity();
break;
case RNSVG::BaseProp::FillRule:
m_fillRule = other.FillRule();
break;
case RNSVG::BaseProp::Stroke:
m_stroke = other.Stroke();
m_strokeBrushId = other.StrokeBrushId();
break;
case RNSVG::BaseProp::StrokeOpacity:
m_strokeOpacity = other.StrokeOpacity();
break;
case RNSVG::BaseProp::StrokeWidth:
m_strokeWidth = other.StrokeWidth();
break;
case RNSVG::BaseProp::StrokeMiterLimit:
m_strokeMiterLimit = other.StrokeMiterLimit();
break;
case RNSVG::BaseProp::StrokeDashOffset:
m_strokeDashOffset = other.StrokeDashOffset();
break;
case RNSVG::BaseProp::StrokeDashArray:
m_strokeDashArray = other.StrokeDashArray();
break;
case RNSVG::BaseProp::StrokeLineCap:
m_strokeLineCap = other.StrokeLineCap();
break;
case RNSVG::BaseProp::StrokeLineJoin:
m_strokeLineJoin = other.StrokeLineJoin();
break;
case RNSVG::BaseProp::Unknown:
default:
break;
}
}
}
}
RNSVG::SvgView RenderableView::SvgRoot() {
if (SvgParent()) {
if (auto const &svgView{SvgParent().try_as<RNSVG::SvgView>()}) {
if (svgView.SvgParent()) {
if (auto const &parent{svgView.SvgParent().try_as<RNSVG::RenderableView>()}) {
return parent.SvgRoot();
}
} else {
return svgView;
}
} else if (auto const &renderable{SvgParent().try_as<RNSVG::RenderableView>()}) {
return renderable.SvgRoot();
}
}
return nullptr;
}
Geometry::CanvasGeometry RenderableView::ClipPathGeometry() {
if (!m_clipPathId.empty()) {
if (auto const &clipPath{SvgRoot().Templates().TryLookup(m_clipPathId)}) {
if (!clipPath.Geometry()) {
clipPath.CreateGeometry(SvgRoot().Canvas());
}
return clipPath.Geometry();
}
}
return nullptr;
}
void RenderableView::Unload() {
if (m_geometry) {
m_geometry.Close();
m_geometry = nullptr;
}
m_parent = nullptr;
m_reactContext = nullptr;
m_propList.clear();
m_propSetMap.clear();
m_strokeDashArray.Clear();
}
RNSVG::IRenderable RenderableView::HitTest(Point const &point) {
if (m_geometry) {
bool strokeContainsPoint{false};
if (auto const &svgRoot{SvgRoot()}) {
float canvasDiagonal{Utils::GetCanvasDiagonal(svgRoot.Canvas().Size())};
float strokeWidth{Utils::GetAbsoluteLength(StrokeWidth(), canvasDiagonal)};
strokeContainsPoint = m_geometry.StrokeContainsPoint(point, strokeWidth);
}
if (m_geometry.FillContainsPoint(point) || strokeContainsPoint) {
return *this;
}
}
return nullptr;
}
void RenderableView::SetColor(const JSValueObject& propValue, Windows::UI::Color fallbackColor, std::string propName) {
switch (propValue["type"].AsInt64()) {
case 1: {
auto const &brushId{to_hstring(Utils::JSValueAsString(propValue["brushRef"]))};
propName == "fill" ? m_fillBrushId = brushId : m_strokeBrushId = brushId;
break;
}
case 2: // currentColor
case 3: // context-fill
case 4: // context-stroke
propName == "fill" ? m_fillBrushId = L"currentColor" : m_strokeBrushId = L"currentColor";
break;
default: {
auto const &color {Utils::JSValueAsColor(propValue["payload"], fallbackColor)};
propName == "fill" ? m_fill = color : m_stroke = color;
break;
}
}
}
} // namespace winrt::RNSVG::implementation