1  #pragma once
 2  #include <winrt/base.h>
 3  #include <Windows.h>
 4  #include <dxgi1_3.h>
 5  #include <d3d11_2.h>
 6  #include <d2d1_3.h>
 7  #include <d2d1_3helper.h>
 8  #include <d2d1helper.h>
 9  #include <dcomp.h>
10  #include <dwmapi.h>
11  #include <string>
12  #include "d2d_svg.h"
13  
14  #include <functional>
15  #include <optional>
16  
17  class D2DWindow
18  {
19  public:
20      D2DWindow();
21      void show(UINT x, UINT y, UINT width, UINT height);
22      void hide();
23      void initialize();
24      virtual ~D2DWindow();
25  
26  protected:
27      // Implement this:
28  
29      // Initialization - called when D2D device needs to be created.
30      //   When called all D2DWindow members will be initialized, including d2d_dc
31      virtual void init() = 0;
32      // resize - when called, window_width and window_height will have current window size
33      virtual void resize() = 0;
34      // render - called on WM_PAINT, BeginPaint/EndPaint is handled by D2DWindow
35      virtual void render(ID2D1DeviceContext5* d2d_dc) = 0;
36      // on_show, on_hide - called when the window is about to be shown or about to be hidden
37      virtual void on_show() = 0;
38      virtual void on_hide() = 0;
39  
40      static LRESULT __stdcall d2d_window_proc(HWND window, UINT message, WPARAM wparam, LPARAM lparam);
41      static D2DWindow* this_from_hwnd(HWND window);
42  
43      void base_init();
44      void base_resize(UINT width, UINT height);
45      void base_render();
46      void render_empty();
47  
48      std::recursive_mutex mutex;
49      bool hidden = true;
50      bool initialized = false;
51      HWND hwnd;
52      UINT window_width{};
53      UINT window_height{};
54      winrt::com_ptr<ID3D11Device> d3d_device;
55      winrt::com_ptr<IDXGIDevice> dxgi_device;
56      winrt::com_ptr<IDXGIFactory2> dxgi_factory;
57      winrt::com_ptr<IDXGISwapChain1> dxgi_swap_chain;
58      winrt::com_ptr<IDCompositionDevice> composition_device;
59      winrt::com_ptr<IDCompositionTarget> composition_target;
60      winrt::com_ptr<IDCompositionVisual> composition_visual;
61      winrt::com_ptr<IDXGISurface2> dxgi_surface;
62      winrt::com_ptr<ID2D1Bitmap1> d2d_bitmap;
63      winrt::com_ptr<ID2D1Factory6> d2d_factory;
64      winrt::com_ptr<ID2D1Device5> d2d_device;
65      winrt::com_ptr<ID2D1DeviceContext5> d2d_dc;
66  };