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image: add crop_and_scale() method 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2008-10-14 17:37:39 +02:00
parent 96c23ad5cb
commit 6ee617e777
1 changed files with 37 additions and 0 deletions
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37
image.c
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@ -224,6 +224,42 @@ luaA_image_crop(lua_State *L)
return luaA_image_userdata_new(L, new);
}
/** Crop the image to the given rectangle and scales it.
* \return The number of elements pushed on stack.
* \luastack
* \lvalue An image.
* \lparam The top left x coordinate of the source rectangle.
* \lparam The top left y coordinate of the source rectangle.
* \lparam The width of the source rectangle.
* \lparam The height of the source rectangle.
* \lparam The width of the destination rectangle.
* \lparam The height of the destination rectangle.
* \lreturn A cropped image.
*/
static int
luaA_image_crop_and_scale(lua_State *L)
{
image_t **image = luaA_checkudata(L, 1, "image"), *new;
int source_x = luaL_checkint(L, 2);
int source_y = luaL_checkint(L, 3);
int w = luaL_checkint(L, 4);
int h = luaL_checkint(L, 5);
int dest_w = luaL_checkint(L, 6);
int dest_h = luaL_checkint(L, 7);
new = p_new(image_t, 1);
imlib_context_set_image((*image)->image);
new->image = imlib_create_cropped_scaled_image(source_x,
source_y,
w, h,
dest_w, dest_h);
image_compute(new);
return luaA_image_userdata_new(L, new);
}
/** Return a formated string for an image.
* \param L The Lua VM state.
* \luastack
@ -248,6 +284,7 @@ const struct luaL_reg awesome_image_meta[] =
{
{ "rotate", luaA_image_rotate },
{ "crop", luaA_image_crop },
{ "crop_and_scale", luaA_image_crop_and_scale },
{ "__gc", luaA_image_gc },
{ "__eq", luaA_image_eq },
{ "__tostring", luaA_image_tostring },