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#pragma once
#include "system_headers.h"
#include <memory>
#include "base.h"
namespace cru
{
namespace graph
{
class GraphManager;
//Represents a window render target.
class WindowRenderTarget : public Object
{
public:
WindowRenderTarget(GraphManager* graph_manager, HWND hwnd);
WindowRenderTarget(const WindowRenderTarget& other) = delete;
WindowRenderTarget(WindowRenderTarget&& other) = delete;
WindowRenderTarget& operator=(const WindowRenderTarget& other) = delete;
WindowRenderTarget& operator=(WindowRenderTarget&& other) = delete;
~WindowRenderTarget() override;
public:
//Get the graph manager that created the render target.
GraphManager* GetGraphManager() const
{
return graph_manager_;
}
//Get the d2d device context.
inline Microsoft::WRL::ComPtr<ID2D1DeviceContext> GetD2DDeviceContext() const;
//Get the target bitmap which can be set as the ID2D1DeviceContext's target.
Microsoft::WRL::ComPtr<ID2D1Bitmap1> GetTargetBitmap() const
{
return target_bitmap_;
}
//Resize the underlying buffer.
void ResizeBuffer(int width, int height);
//Set this render target as the d2d device context's target.
void SetAsTarget();
//Present the data of the underlying buffer to the window.
void Present();
private:
void CreateTargetBitmap();
private:
GraphManager* graph_manager_;
Microsoft::WRL::ComPtr<IDXGISwapChain1> dxgi_swap_chain_;
Microsoft::WRL::ComPtr<ID2D1Bitmap1> target_bitmap_;
};
struct Dpi
{
float x;
float y;
};
class GraphManager : public Object
{
public:
GraphManager();
GraphManager(const GraphManager& other) = delete;
GraphManager(GraphManager&& other) = delete;
GraphManager& operator=(const GraphManager& other) = delete;
GraphManager& operator=(GraphManager&& other) = delete;
~GraphManager() override;
public:
Microsoft::WRL::ComPtr<ID2D1Factory1> GetD2D1Factory() const
{
return d2d1_factory_;
}
Microsoft::WRL::ComPtr<ID2D1DeviceContext> GetD2D1DeviceContext() const
{
return d2d1_device_context_;
}
Microsoft::WRL::ComPtr<ID3D11Device> GetD3D11Device() const
{
return d3d11_device_;
}
Microsoft::WRL::ComPtr<IDXGIFactory2> GetDxgiFactory() const
{
return dxgi_factory_;
}
//Create a window render target with the HWND.
std::shared_ptr<WindowRenderTarget> CreateWindowRenderTarget(HWND hwnd);
//Get the desktop dpi.
Dpi GetDpi();
//Reload system metrics including desktop dpi.
void ReloadSystemMetrics();
private:
Microsoft::WRL::ComPtr<ID3D11Device> d3d11_device_;
Microsoft::WRL::ComPtr<ID3D11DeviceContext> d3d11_device_context_;
Microsoft::WRL::ComPtr<ID2D1Factory1> d2d1_factory_;
Microsoft::WRL::ComPtr<ID2D1Device> d2d1_device_;
Microsoft::WRL::ComPtr<ID2D1DeviceContext> d2d1_device_context_;
Microsoft::WRL::ComPtr<IDXGIFactory2> dxgi_factory_;
Microsoft::WRL::ComPtr<IDWriteFactory> dwrite_factory_;
};
int DipToPixelX(float dip_x);
int DipToPixelY(float dip_y);
float PixelToDipX(int pixel_x);
float PixelToDipY(int pixel_y);
Microsoft::WRL::ComPtr<ID2D1DeviceContext> WindowRenderTarget::GetD2DDeviceContext() const
{
return graph_manager_->GetD2D1DeviceContext();
}
}
}
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