src/lua/gui-rectangle.cpp

   1 #include "lua/internal.hpp"
   2 #include "core/render.hpp"
   3
   4 namespace
   5 {
   6         struct render_object_rectangle : public render_object
   7         {
   8                 render_object_rectangle(int32_t _x, int32_t _y, uint32_t _width, uint32_t _height,
   9                         premultiplied_color _outline, premultiplied_color _fill, uint32_t _thickness) throw()
  10                         : x(_x), y(_y), width(_width), height(_height), outline(_outline), fill(_fill),
  11                         thickness(_thickness) {}
  12                 ~render_object_rectangle() throw() {}
  13                 template<bool X> void op(struct screen<X>& scr) throw()
  14                 {
  15                         outline.set_palette(scr);
  16                         fill.set_palette(scr);
  17                         int32_t xmin = 0;
  18                         int32_t xmax = width;
  19                         int32_t ymin = 0;
  20                         int32_t ymax = height;
  21                         clip_range(scr.originx, scr.width, x, xmin, xmax);
  22                         clip_range(scr.originy, scr.height, y, ymin, ymax);
  23                         for(int32_t r = ymin; r < ymax; r++) {
  24                                 typename screen<X>::element_t* rptr = scr.rowptr(y + r + scr.originy);
  25                                 size_t eptr = x + xmin + scr.originx;
  26                                 for(int32_t c = xmin; c < xmax; c++, eptr++)
  27                                         if(r < thickness || c < thickness || r >= height - thickness ||
  28                                                 c >= width - thickness)
  29                                                 outline.apply(rptr[eptr]);
  30                                         else
  31                                                 fill.apply(rptr[eptr]);
  32                         }
  33                 }
  34                 void operator()(struct screen<true>& scr) throw()  { op(scr); }
  35                 void operator()(struct screen<false>& scr) throw() { op(scr); }
  36         private:
  37                 int32_t x;
  38                 int32_t y;
  39                 uint32_t width;
  40                 uint32_t height;
  41                 premultiplied_color outline;
  42                 premultiplied_color fill;
  43                 uint32_t thickness;
  44         };
  45
  46         function_ptr_luafun gui_rectangle("gui.rectangle", [](lua_State* LS, const std::string& fname) -> int {
  47                 if(!lua_render_ctx)
  48                         return 0;
  49                 int64_t outline = 0xFFFFFFU;
  50                 int64_t fill = -1;
  51                 uint32_t thickness = 1;
  52                 int32_t x = get_numeric_argument<int32_t>(LS, 1, fname.c_str());
  53                 int32_t y = get_numeric_argument<int32_t>(LS, 2, fname.c_str());
  54                 uint32_t width = get_numeric_argument<uint32_t>(LS, 3, fname.c_str());
  55                 uint32_t height = get_numeric_argument<uint32_t>(LS, 4, fname.c_str());
  56                 get_numeric_argument<uint32_t>(LS, 5, thickness, fname.c_str());
  57                 get_numeric_argument<int64_t>(LS, 6, outline, fname.c_str());
  58                 get_numeric_argument<int64_t>(LS, 7, fill, fname.c_str());
  59                 premultiplied_color poutline(outline);
  60                 premultiplied_color pfill(fill);
  61                 lua_render_ctx->queue->add(*new render_object_rectangle(x, y, width, height, poutline, pfill,
  62                         thickness));
  63                 return 0;
  64         });
  65 }