lua/gui-text.cpp

   1 #include "lua-int.hpp"
   2 #include "render.hpp"
   3
   4 namespace
   5 {
   6         struct render_object_text : public render_object
   7         {
   8                 render_object_text(int32_t _x, int32_t _y, const std::string& _text, uint32_t _fg = 0xFFFFFFFFU,
   9                         uint16_t _fgalpha = 255, uint32_t _bg = 0, uint16_t _bgalpha = 0) throw(std::bad_alloc);
  10                 ~render_object_text() throw();
  11                 void operator()(struct screen& scr) throw();
  12         private:
  13                 int32_t x;
  14                 int32_t y;
  15                 uint32_t fg;
  16                 uint16_t fgalpha;
  17                 uint32_t bg;
  18                 uint16_t bgalpha;
  19                 std::string text;
  20         };
  21
  22         render_object_text::render_object_text(int32_t _x, int32_t _y, const std::string& _text, uint32_t _fg,
  23                 uint16_t _fgalpha, uint32_t _bg, uint16_t _bgalpha) throw(std::bad_alloc)
  24                 : x(_x), y(_y), fg(_fg), fgalpha(_fgalpha), bg(_bg), bgalpha(_bgalpha), text(_text)
  25         {
  26         }
  27
  28         void render_object_text::operator()(struct screen& scr) throw()
  29         {
  30                 render_text(scr, x, y, text, fg, fgalpha, bg, bgalpha);
  31         }
  32
  33         render_object_text::~render_object_text() throw()
  34         {
  35         }
  36
  37         class lua_gui_text : public lua_function
  38         {
  39         public:
  40                 lua_gui_text() : lua_function("gui.text") {}
  41                 int invoke(lua_State* LS)
  42                 {
  43                         if(!lua_render_ctx)
  44                                 return 0;
  45                         uint32_t x255 = 255;
  46                         uint32_t fgc = (x255 << lua_render_ctx->rshift) | (x255 << lua_render_ctx->gshift) |
  47                                 (x255 << lua_render_ctx->bshift);
  48                         uint32_t bgc = 0;
  49                         uint16_t fga = 256;
  50                         uint16_t bga = 0;
  51                         int32_t _x = get_numeric_argument<int32_t>(LS, 1, "gui.text");
  52                         int32_t _y = get_numeric_argument<int32_t>(LS, 2, "gui.text");
  53                         get_numeric_argument<uint32_t>(LS, 4, fgc, "gui.text");
  54                         get_numeric_argument<uint16_t>(LS, 5, fga, "gui.text");
  55                         get_numeric_argument<uint32_t>(LS, 6, bgc, "gui.text");
  56                         get_numeric_argument<uint16_t>(LS, 7, bga, "gui.text");
  57                         std::string text = get_string_argument(LS, 3, "gui.text");
  58                         lua_render_ctx->queue->add(*new render_object_text(_x, _y, text, fgc, fga, bgc, bga));
  59                         return 0;
  60                 }
  61         } gui_text;
  62 }