1 files changed, 66 insertions, 0 deletions
diff --git a/src/win/graph/win_geometry.cpp b/src/win/graph/win_geometry.cpp
new file mode 100644
index 00000000..22c4b8a7
--- /dev/null
+++ b/src/win/graph/win_geometry.cpp
@@ -0,0 +1,66 @@
+#include "cru/win/graph/win_geometry.hpp"
+
+#include "cru/win/exception.hpp"
+#include "cru/win/graph/d2d_util.hpp"
+#include "cru/win/graph/graph_manager.hpp"
+
+#include <cassert>
+
+namespace cru::win::graph {
+WinGeometryBuilder::WinGeometryBuilder(GraphManager* graph_manager) {
+  assert(graph_manager);
+  ThrowIfFailed(
+      graph_manager->GetD2D1Factory()->CreatePathGeometry(&geometry_));
+  ThrowIfFailed(geometry_->Open(&geometry_sink_));
+}
+
+WinGeometryBuilder::~WinGeometryBuilder() {
+  if (geometry_sink_) {
+    ThrowIfFailed(geometry_sink_->Close());
+  }
+}
+
+void WinGeometryBuilder::BeginFigure(const ui::Point& point) {
+  assert(IsValid());
+  geometry_sink_->BeginFigure(util::Convert(point), D2D1_FIGURE_BEGIN_FILLED);
+}
+
+void WinGeometryBuilder::LineTo(const ui::Point& point) {
+  assert(IsValid());
+  geometry_sink_->AddLine(util::Convert(point));
+}
+
+void WinGeometryBuilder::QuadraticBezierTo(const ui::Point& control_point,
+                                           const ui::Point& end_point) {
+  assert(IsValid());
+  geometry_sink_->AddQuadraticBezier(D2D1::QuadraticBezierSegment(
+      util::Convert(control_point), util::Convert(end_point)));
+}
+
+void WinGeometryBuilder::CloseFigure(bool close) {
+  assert(IsValid());
+  geometry_sink_->EndFigure(close ? D2D1_FIGURE_END_CLOSED
+                                  : D2D1_FIGURE_END_OPEN);
+}
+
+platform::graph::Geometry* WinGeometryBuilder::Build() {
+  assert(IsValid());
+  ThrowIfFailed(geometry_sink_->Close());
+  geometry_sink_ = nullptr;
+  const auto geometry = new WinGeometry(geometry_);
+  geometry_ = nullptr;
+  return geometry;
+}
+
+WinGeometry::WinGeometry(Microsoft::WRL::ComPtr<ID2D1PathGeometry> geometry) {
+  assert(geometry);
+  geometry_ = std::move(geometry);
+}
+
+bool WinGeometry::FillContains(const ui::Point& point) {
+  BOOL result;
+  ThrowIfFailed(geometry_->FillContainsPoint(
+      util::Convert(point), D2D1::Matrix3x2F::Identity(), &result));
+  return result != 0;
+}
+}  // namespace cru::win::graph