Initial commit

src/api/renderer_font.c

@@ -0,0 +1,62 @@
+#include "api.h"
+#include "renderer.h"
+#include "rencache.h"
+
+
+static int f_load(lua_State *L) {
+  const char *filename  = luaL_checkstring(L, 1);
+  float size = luaL_checknumber(L, 2);
+  RenFont **self = lua_newuserdata(L, sizeof(*self));
+  luaL_setmetatable(L, API_TYPE_FONT);
+  *self = ren_load_font(filename, size);
+  if (!*self) { luaL_error(L, "failed to load font"); }
+  return 1;
+}
+
+
+static int f_set_tab_width(lua_State *L) {
+  RenFont **self = luaL_checkudata(L, 1, API_TYPE_FONT);
+  int n = luaL_checknumber(L, 2);
+  ren_set_font_tab_width(*self, n);
+  return 0;
+}
+
+
+static int f_gc(lua_State *L) {
+  RenFont **self = luaL_checkudata(L, 1, API_TYPE_FONT);
+  rencache_free_font(*self);
+  return 0;
+}
+
+
+static int f_get_width(lua_State *L) {
+  RenFont **self = luaL_checkudata(L, 1, API_TYPE_FONT);
+  const char *text = luaL_checkstring(L, 2);
+  lua_pushnumber(L, ren_get_font_width(*self, text) );
+  return 1;
+}
+
+
+static int f_get_height(lua_State *L) {
+  RenFont **self = luaL_checkudata(L, 1, API_TYPE_FONT);
+  lua_pushnumber(L, ren_get_font_height(*self) );
+  return 1;
+}
+
+
+static const luaL_Reg lib[] = {
+  { "__gc",          f_gc            },
+  { "load",          f_load          },
+  { "set_tab_width", f_set_tab_width },
+  { "get_width",     f_get_width     },
+  { "get_height",    f_get_height    },
+  { NULL, NULL }
+};
+
+int luaopen_renderer_font(lua_State *L) {
+  luaL_newmetatable(L, API_TYPE_FONT);
+  luaL_setfuncs(L, lib, 0);
+  lua_pushvalue(L, -1);
+  lua_setfield(L, -2, "__index");
+  return 1;
+}