/*

* padding.h - padding definition

*

* Copyright © 2007-2009 Julien Danjou <julien@danjou.info>

*

* This program is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation; either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

*

*/

#ifndef AWESOME_PADDING_H

#define AWESOME_PADDING_H

#include "luaa.h"

/** Padding type */

typedef struct

{

/** Padding at top */

int top;

/** Padding at bottom */

int bottom;

/** Padding at left */

int left;

/** Padding at right */

int right;

} padding_t;

/** Get an optional padding table from a Lua table.

* \param L The Lua VM state.

* \param idx The table index on the stack.

* \param dpadding The default padding value to use.

*/

static inline padding_t

luaA_getopt_padding(lua_State *L, int idx, padding_t *dpadding)

{

padding_t padding;

luaA_checktable(L, idx);

padding.right = luaA_getopt_number(L, idx, "right", dpadding->right);

padding.left = luaA_getopt_number(L, idx, "left", dpadding->left);

padding.top = luaA_getopt_number(L, idx, "top", dpadding->top);

padding.bottom = luaA_getopt_number(L, idx, "bottom", dpadding->bottom);

return padding;

}

/** Push a padding structure into a table on the Lua stack.

* \param L The Lua VM state.

* \param padding The padding struct pointer.

* \return The number of elements pushed on stack.

*/

static inline int

luaA_pushpadding(lua_State *L, padding_t *padding)

{

lua_createtable(L, 0, 4);

lua_pushnumber(L, padding->right);

lua_setfield(L, -2, "right");

lua_pushnumber(L, padding->left);

lua_setfield(L, -2, "left");

lua_pushnumber(L, padding->top);

lua_setfield(L, -2, "top");

lua_pushnumber(L, padding->bottom);

lua_setfield(L, -2, "bottom");

return 1;

}

#endif

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