funcs_font.cpp

   1 /*
   2 Copyright (c)2006-2007 - Brett Lajzer
   3
   4 See LICENSE for license information.
   5 */
   6
   7 #include <map>
   8 #include <string>
   9 #include "lua.hpp"
  10 #include "SDL/SDL.h"
  11 #include "SDL/SDL_ttf.h"
  12 #include "funcs_font.h"
  13
  14 //loads a font and returns a pointer to it
  15 int l_load_font(lua_State *L){
  16   TTF_Font *font;
  17   font = TTF_OpenFont(luaL_checkstring(L,1), (int)lua_tonumber(L,2));
  18
  19   lua_pushlightuserdata(L,font);
  20   return 1;
  21 }
  22
  23 //unloads a font
  24 int l_close_font(lua_State *L){
  25   TTF_CloseFont((TTF_Font*)lua_touserdata(L,1));
  26   lua_pushnil(L);
  27   return 1;
  28 }
  29
  30 //gets dimensions of a string as rendered with a font
  31 int l_font_string_metrics(lua_State *L){
  32   int w, h;
  33   TTF_SizeUTF8((TTF_Font*)lua_touserdata(L,1), luaL_checkstring(L,2), &w, &h);
  34
  35   lua_pushinteger(L, w);
  36   lua_pushinteger(L, h);
  37
  38   return 2;
  39 }
  40
  41 //render a string in a font
  42 int l_render_string(lua_State *L){
  43   SDL_Surface *temp;
  44   SDL_Color color;
  45
  46   color.r = (int)lua_tonumber(L,3);
  47   color.g = (int)lua_tonumber(L,4);
  48   color.b = (int)lua_tonumber(L,5);
  49
  50   temp = TTF_RenderUTF8_Blended((TTF_Font*)lua_touserdata(L,1),luaL_checkstring(L,2), color);
  51
  52   lua_pushlightuserdata(L,temp);
  53   lua_pushinteger(L, temp->w);
  54   lua_pushinteger(L, temp->h);
  55
  56   return 3;
  57 }