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image: allow empty image creation 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2008-11-05 13:38:11 +01:00
parent de9c2b1886
commit 566c5e8639
1 changed files with 19 additions and 4 deletions
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21
image.c
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@ -156,17 +156,32 @@ image_new_from_file(const char *filename)
* \param L The Lua stack. * \param L The Lua stack.
* \return The number of elements pushed on stack. * \return The number of elements pushed on stack.
* \luastack * \luastack
* \lparam The image path. * \lparam The image path, or nil to create an empty image.
* \lparam The image width if nil was set as first arg.
* \lparam The image height if nil was set as first arg.
* \lreturn An image object. * \lreturn An image object.
*/ */
static int static int
luaA_image_new(lua_State *L) luaA_image_new(lua_State *L)
{ {
const char *filename = luaL_checkstring(L, 2); const char *filename;
image_t *image;
if((filename = lua_tostring(L, 2)))
{
image_t *image;
if((image = image_new_from_file(filename))) if((image = image_new_from_file(filename)))
return luaA_image_userdata_new(L, image); return luaA_image_userdata_new(L, image);
}
else if(lua_isnil(L, 2))
{
int width = luaL_checknumber(L, 3);
int height = luaL_checknumber(L, 4);
Imlib_Image imimage = imlib_create_image(width, height);
image_t *image = p_new(image_t, 1);
image->image = imimage;
image_compute(image);
return luaA_image_userdata_new(L, image);
}
return 0; return 0;
} }