static void p_delta_drawable(gint32 *val, gint32 val_from, gint32 val_to, gint32 total_steps, gdouble current_step)
{
gint l_nlayers;
gint32 *l_layers_list;
gint32 l_tmp_image_id;
gint l_idx, l_idx_from, l_idx_to;
if((val_from < 0) || (val_to < 0))
{
return;
}
l_tmp_image_id = gimp_drawable_image_id(val_from);
/* check if from and to values are both valid drawables within the same image */
if ((l_tmp_image_id > 0)
&& (l_tmp_image_id = gimp_drawable_image_id(val_to)))
{
l_idx_from = -1;
l_idx_to = -1;
/* check the layerstack index of from and to drawable */
l_layers_list = gimp_image_get_layers(l_tmp_image_id, &l_nlayers);
for (l_idx = l_nlayers -1; l_idx >= 0; l_idx--)
{
if( l_layers_list[l_idx] == val_from ) l_idx_from = l_idx;
if( l_layers_list[l_idx] == val_to ) l_idx_to = l_idx;
if((l_idx_from != -1) && (l_idx_to != -1))
{
/* OK found both index values, iterate the index (proceed to next layer) */
p_delta_gint(&l_idx, l_idx_from, l_idx_to, total_steps, current_step);
*val = l_layers_list[l_idx];
break;
}
}
g_free (l_layers_list);
}
}
gint32
gimp_channel_get_image_id (gint32 channel_ID)
{
return gimp_drawable_image_id (channel_ID);
}
gint32
gimp_layer_get_image_id (gint32 layer_ID)
{
return gimp_drawable_image_id (layer_ID);
}
