1 files changed, 104 insertions, 0 deletions
diff --git a/src/win/graph/direct/Painter.cpp b/src/win/graph/direct/Painter.cpp
new file mode 100644
index 00000000..3ffb5208
--- /dev/null
+++ b/src/win/graph/direct/Painter.cpp
@@ -0,0 +1,104 @@
+#include "cru/win/graph/direct/Painter.hpp"
+
+#include "cru/platform/Check.hpp"
+#include "cru/win/graph/direct/Brush.hpp"
+#include "cru/win/graph/direct/ConvertUtil.hpp"
+#include "cru/win/graph/direct/Exception.hpp"
+#include "cru/win/graph/direct/Geometry.hpp"
+#include "cru/win/graph/direct/TextLayout.hpp"
+
+#include <type_traits>
+
+namespace cru::platform::graph::win::direct {
+D2DPainter::D2DPainter(ID2D1RenderTarget* render_target) {
+  Expects(render_target);
+  render_target_ = render_target;
+}
+
+platform::Matrix D2DPainter::GetTransform() {
+  CheckValidation();
+  D2D1_MATRIX_3X2_F m;
+  render_target_->GetTransform(&m);
+  return Convert(m);
+}
+
+void D2DPainter::SetTransform(const platform::Matrix& matrix) {
+  CheckValidation();
+  render_target_->SetTransform(Convert(matrix));
+}
+
+void D2DPainter::Clear(const Color& color) {
+  CheckValidation();
+  render_target_->Clear(Convert(color));
+}
+
+void D2DPainter::StrokeRectangle(const Rect& rectangle, IBrush* brush,
+                                 float width) {
+  CheckValidation();
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  render_target_->DrawRectangle(Convert(rectangle), b->GetD2DBrushInterface(),
+                                width);
+}
+
+void D2DPainter::FillRectangle(const Rect& rectangle, IBrush* brush) {
+  CheckValidation();
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  render_target_->FillRectangle(Convert(rectangle), b->GetD2DBrushInterface());
+}
+
+void D2DPainter::StrokeGeometry(IGeometry* geometry, IBrush* brush,
+                                float width) {
+  CheckValidation();
+  const auto g = CheckPlatform<D2DGeometry>(geometry, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  render_target_->DrawGeometry(g->GetComInterface(), b->GetD2DBrushInterface(),
+                               width);
+}
+
+void D2DPainter::FillGeometry(IGeometry* geometry, IBrush* brush) {
+  CheckValidation();
+  const auto g = CheckPlatform<D2DGeometry>(geometry, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  render_target_->FillGeometry(g->GetComInterface(), b->GetD2DBrushInterface());
+}
+
+void D2DPainter::DrawText(const Point& offset, ITextLayout* text_layout,
+                          IBrush* brush) {
+  CheckValidation();
+  const auto t = CheckPlatform<DWriteTextLayout>(text_layout, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  render_target_->DrawTextLayout(Convert(offset), t->GetComInterface(),
+                                 b->GetD2DBrushInterface());
+}
+
+void D2DPainter::PushLayer(const Rect& bounds) {
+  CheckValidation();
+
+  Microsoft::WRL::ComPtr<ID2D1Layer> layer;
+  ThrowIfFailed(render_target_->CreateLayer(&layer));
+
+  render_target_->PushLayer(D2D1::LayerParameters(Convert(bounds)),
+                            layer.Get());
+
+  layers_.push_back(std::move(layer));
+}
+
+void D2DPainter::PopLayer() {
+  render_target_->PopLayer();
+  layers_.pop_back();
+}
+
+void D2DPainter::EndDraw() {
+  if (is_drawing_) {
+    is_drawing_ = false;
+    DoEndDraw();
+  }
+}
+
+void D2DPainter::CheckValidation() {
+  if (!is_drawing_) {
+    throw cru::platform::ReuseException(
+        "Can't do that on painter after end drawing.");
+  }
+}
+}  // namespace cru::platform::graph::win::direct