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#include "cru/win/graphics/direct/Painter.hpp"
#include "cru/platform/Check.hpp"
#include "cru/win/graphics/direct/Brush.hpp"
#include "cru/win/graphics/direct/ConvertUtil.hpp"
#include "cru/win/graphics/direct/Exception.hpp"
#include "cru/win/graphics/direct/Geometry.hpp"
#include "cru/win/graphics/direct/TextLayout.hpp"
#include <type_traits>
namespace cru::platform::graphics::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::ConcatTransform(const Matrix& matrix) {
SetTransform(GetTransform() * matrix);
}
void D2DPainter::Clear(const Color& color) {
CheckValidation();
render_target_->Clear(Convert(color));
}
void D2DPainter::DrawLine(const Point& start, const Point& end, IBrush* brush,
float width) {
CheckValidation();
const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
render_target_->DrawLine(Convert(start), Convert(end),
b->GetD2DBrushInterface(), width);
}
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::StrokeEllipse(const Rect& outline_rect, IBrush* brush,
float width) {
CheckValidation();
const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
render_target_->DrawEllipse(
D2D1::Ellipse(Convert(outline_rect.GetCenter()),
outline_rect.width / 2.0f, outline_rect.height / 2.0f),
b->GetD2DBrushInterface(), width);
}
void D2DPainter::FillEllipse(const Rect& outline_rect, IBrush* brush) {
CheckValidation();
const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
render_target_->FillEllipse(
D2D1::Ellipse(Convert(outline_rect.GetCenter()),
outline_rect.width / 2.0f, outline_rect.height / 2.0f),
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::PushState() {
Microsoft::WRL::ComPtr<ID2D1Factory> factory = nullptr;
render_target_->GetFactory(&factory);
Microsoft::WRL::ComPtr<ID2D1DrawingStateBlock> state_block;
factory->CreateDrawingStateBlock(&state_block);
render_target_->SaveDrawingState(state_block.Get());
drawing_state_stack_.push_back(std::move(state_block));
}
void D2DPainter::PopState() {
Expects(!drawing_state_stack_.empty());
auto drawing_state = drawing_state_stack_.back();
drawing_state_stack_.pop_back();
render_target_->RestoreDrawingState(drawing_state.Get());
}
void D2DPainter::EndDraw() {
if (is_drawing_) {
is_drawing_ = false;
DoEndDraw();
}
}
void D2DPainter::CheckValidation() {
if (!is_drawing_) {
throw cru::platform::ReuseException(
L"Can't do that on painter after end drawing.");
}
}
} // namespace cru::platform::graphics::win::direct
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