strut.c

   1 /*
   2  * strut.c - strut management
   3  *
   4  * Copyright © 2009 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include "strut.h"
  23 #include "luaa.h"
  24
  25 /** Push a strut type to a table on stack.
  26  * \param L The Lua VM state.
  27  * \param strut The strut to push.
  28  * \return The number of elements pushed on stack.
  29  */
  30 int
  31 luaA_pushstrut(lua_State *L, strut_t strut)
  32 {
  33     lua_createtable(L, 4, 0);
  34     lua_pushnumber(L, strut.left);
  35     lua_setfield(L, -2, "left");
  36     lua_pushnumber(L, strut.right);
  37     lua_setfield(L, -2, "right");
  38     lua_pushnumber(L, strut.top);
  39     lua_setfield(L, -2, "top");
  40     lua_pushnumber(L, strut.bottom);
  41     lua_setfield(L, -2, "bottom");
  42     return 1;
  43 }
  44
  45 /** Convert a table to a strut_t structure.
  46  * \param L The Lua VM state.
  47  * \param idx The index of the table on the stack.
  48  * \param strut The strut to fill. Current values will be used as default.
  49  */
  50 void
  51 luaA_tostrut(lua_State *L, int idx, strut_t *strut)
  52 {
  53     luaA_checktable(L, idx);
  54     strut->left = luaA_getopt_number(L, idx, "left", strut->left);
  55     strut->right = luaA_getopt_number(L, idx, "right", strut->right);
  56     strut->top = luaA_getopt_number(L, idx, "top", strut->top);
  57     strut->bottom = luaA_getopt_number(L, idx, "bottom", strut->bottom);
  58 }
  59
  60 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80