include/platform/wxwidgets/textrender.hpp

   1 #ifndef _textrender__hpp__included__
   2 #define _textrender__hpp__included__
   3
   4 #include <wx/panel.h>
   5 #include <cstdint>
   6 #include <map>
   7 #include <cstdlib>
   8 #include <vector>
   9 #include <string>
  10
  11 struct text_framebuffer
  12 {
  13         text_framebuffer();
  14         text_framebuffer(size_t w, size_t h);
  15         struct element
  16         {
  17                 element() { ch = 32; bg = 0xFFFFFF; fg = 0; }
  18                 uint32_t ch;
  19                 uint32_t bg;
  20                 uint32_t fg;
  21                 const static uint32_t white;
  22                 const static uint32_t black;
  23         };
  24         element* get_buffer() { return &buffer[0]; }
  25         void set_size(size_t _width, size_t _height);
  26         size_t get_stride() { return width; }
  27         void clear() { for(size_t i = 0; i < buffer.size(); i++) buffer[i] = element(); }
  28         std::pair<size_t, size_t> get_characters() { return std::make_pair(width, height); }
  29         std::pair<size_t, size_t> get_cell();
  30         std::pair<size_t, size_t> get_pixels();
  31         void render(char* buffer);
  32         size_t write(const std::string& str, size_t w, size_t x, size_t y, uint32_t fg, uint32_t bg);
  33         size_t write(const std::u32string& str, size_t w, size_t x, size_t y, uint32_t fg, uint32_t bg);
  34         static size_t text_width(const std::string& text);
  35         element E(char32_t ch, uint32_t fg, uint32_t bg)
  36         {
  37                 element e;
  38                 e.ch = ch;
  39                 e.fg = fg;
  40                 e.bg = bg;
  41                 return e;
  42         }
  43 private:
  44         std::vector<element> buffer;
  45         size_t width;
  46         size_t height;
  47 };
  48
  49 struct text_framebuffer_panel : public wxPanel, public text_framebuffer
  50 {
  51 public:
  52         text_framebuffer_panel(wxWindow* parent, size_t w, size_t h, wxWindowID id, wxWindow* redirect);
  53         ~text_framebuffer_panel();
  54         void set_size(size_t _width, size_t _height);
  55         void request_paint();
  56         bool AcceptsFocus() { return (redirect != NULL); }
  57 protected:
  58         virtual void prepare_paint() = 0;
  59 private:
  60         void on_erase(wxEraseEvent& e);
  61         void on_paint(wxPaintEvent& e);
  62         void on_focus(wxFocusEvent& e);
  63         bool paint_requested;
  64         bool locked;
  65         bool size_changed;
  66         std::vector<char> buffer;
  67         wxWindow* redirect;
  68 };
  69
  70 #endif