GimpLayer *
gimp_image_flatten (GimpImage *image,
GimpContext *context,
GError **error)
{
GList *list;
GSList *merge_list = NULL;
GimpLayer *layer;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
for (list = gimp_image_get_layer_iter (image);
list;
list = g_list_next (list))
{
layer = list->data;
if (gimp_layer_is_floating_sel (layer))
continue;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
merge_list = g_slist_append (merge_list, layer);
}
if (merge_list)
{
gimp_set_busy (image->gimp);
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_IMAGE_LAYERS_MERGE,
C_("undo-type", "Flatten Image"));
/* if there's a floating selection, anchor it */
if (gimp_image_get_floating_selection (image))
floating_sel_anchor (gimp_image_get_floating_selection (image));
layer = gimp_image_merge_layers (image,
gimp_image_get_layers (image),
merge_list, context,
GIMP_FLATTEN_IMAGE);
g_slist_free (merge_list);
gimp_image_alpha_changed (image);
gimp_image_undo_group_end (image);
gimp_unset_busy (image->gimp);
return layer;
}
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Cannot flatten an image without any visible layer."));
return NULL;
}
GimpLayer *
gimp_image_merge_down (GimpImage *image,
GimpLayer *current_layer,
GimpContext *context,
GimpMergeType merge_type)
{
GimpLayer *layer;
GList *list;
GList *layer_list;
GSList *merge_list;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
for (list = GIMP_LIST (image->layers)->list, layer_list = NULL;
list && !layer_list;
list = g_list_next (list))
{
layer = list->data;
if (layer == current_layer)
break;
}
for (layer_list = g_list_next (list), merge_list = NULL;
layer_list && !merge_list;
layer_list = g_list_next (layer_list))
{
layer = layer_list->data;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
merge_list = g_slist_append (NULL, layer);
}
merge_list = g_slist_prepend (merge_list, current_layer);
gimp_set_busy (image->gimp);
layer = gimp_image_merge_layers (image, merge_list, context, merge_type,
_("Merge Down"));
g_slist_free (merge_list);
gimp_unset_busy (image->gimp);
return layer;
}
GimpLayer *
gimp_image_flatten (GimpImage *image,
GimpContext *context)
{
GList *list;
GSList *merge_list = NULL;
GimpLayer *layer;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
gimp_set_busy (image->gimp);
/* if there's a floating selection, anchor it */
if (gimp_image_floating_sel (image))
floating_sel_anchor (image->floating_sel);
for (list = GIMP_LIST (image->layers)->list;
list;
list = g_list_next (list))
{
layer = list->data;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
merge_list = g_slist_append (merge_list, layer);
}
layer = gimp_image_merge_layers (image, merge_list, context,
GIMP_FLATTEN_IMAGE, _("Flatten Image"));
g_slist_free (merge_list);
gimp_image_alpha_changed (image);
gimp_unset_busy (image->gimp);
return layer;
}
GimpLayer *
gimp_image_merge_visible_layers (GimpImage *image,
GimpContext *context,
GimpMergeType merge_type,
gboolean discard_invisible)
{
GList *list;
GSList *merge_list = NULL;
GSList *invisible_list = NULL;
gboolean had_floating_sel = FALSE;
GimpLayer *layer = NULL;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
/* if there's a floating selection, anchor it */
if (gimp_image_floating_sel (image))
{
floating_sel_anchor (image->floating_sel);
had_floating_sel = TRUE;
}
for (list = GIMP_LIST (image->layers)->list;
list;
list = g_list_next (list))
{
layer = list->data;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
{
merge_list = g_slist_append (merge_list, layer);
}
else if (discard_invisible)
{
invisible_list = g_slist_append (invisible_list, layer);
}
}
if (merge_list)
{
const gchar *undo_desc = _("Merge Visible Layers");
gimp_set_busy (image->gimp);
if (invisible_list)
{
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_IMAGE_LAYERS_MERGE,
undo_desc);
}
layer = gimp_image_merge_layers (image, merge_list, context, merge_type,
_("Merge Visible Layers"));
g_slist_free (merge_list);
if (invisible_list)
{
GSList *list;
for (list = invisible_list; list; list = g_slist_next (list))
gimp_image_remove_layer (image, list->data);
gimp_image_undo_group_end (image);
g_slist_free (invisible_list);
}
gimp_unset_busy (image->gimp);
return layer;
}
return gimp_image_get_active_layer (image);
}
GimpLayer *
gimp_image_merge_visible_layers (GimpImage *image,
GimpContext *context,
GimpMergeType merge_type,
gboolean merge_active_group,
gboolean discard_invisible)
{
GimpContainer *container;
GList *list;
GSList *merge_list = NULL;
GSList *invisible_list = NULL;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
if (merge_active_group)
{
GimpLayer *active_layer = gimp_image_get_active_layer (image);
/* if the active layer is the floating selection, get the
* underlying drawable, but only if it is a layer
*/
if (active_layer && gimp_layer_is_floating_sel (active_layer))
{
GimpDrawable *fs_drawable;
fs_drawable = gimp_layer_get_floating_sel_drawable (active_layer);
if (GIMP_IS_LAYER (fs_drawable))
active_layer = GIMP_LAYER (fs_drawable);
}
if (active_layer)
container = gimp_item_get_container (GIMP_ITEM (active_layer));
else
container = gimp_image_get_layers (image);
}
else
{
container = gimp_image_get_layers (image);
}
for (list = gimp_item_stack_get_item_iter (GIMP_ITEM_STACK (container));
list;
list = g_list_next (list))
{
GimpLayer *layer = list->data;
if (gimp_layer_is_floating_sel (layer))
continue;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
{
merge_list = g_slist_append (merge_list, layer);
}
else if (discard_invisible)
{
invisible_list = g_slist_append (invisible_list, layer);
}
}
if (merge_list)
{
GimpLayer *layer;
gimp_set_busy (image->gimp);
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_IMAGE_LAYERS_MERGE,
C_("undo-type", "Merge Visible Layers"));
/* if there's a floating selection, anchor it */
if (gimp_image_get_floating_selection (image))
floating_sel_anchor (gimp_image_get_floating_selection (image));
layer = gimp_image_merge_layers (image,
container,
merge_list, context, merge_type);
g_slist_free (merge_list);
if (invisible_list)
{
GSList *list;
for (list = invisible_list; list; list = g_slist_next (list))
gimp_image_remove_layer (image, list->data, TRUE, NULL);
g_slist_free (invisible_list);
}
gimp_image_undo_group_end (image);
gimp_unset_busy (image->gimp);
return layer;
}
return gimp_image_get_active_layer (image);
}
GimpLayer *
gimp_image_merge_down (GimpImage *image,
GimpLayer *current_layer,
GimpContext *context,
GimpMergeType merge_type,
GError **error)
{
GimpLayer *layer;
GList *list;
GList *layer_list = NULL;
GSList *merge_list = NULL;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_LAYER (current_layer), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (current_layer)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
for (list = gimp_item_get_container_iter (GIMP_ITEM (current_layer));
list;
list = g_list_next (list))
{
layer = list->data;
if (layer == current_layer)
break;
}
for (layer_list = g_list_next (list);
layer_list;
layer_list = g_list_next (layer_list))
{
layer = layer_list->data;
if (gimp_item_get_visible (GIMP_ITEM (layer)))
{
if (gimp_viewable_get_children (GIMP_VIEWABLE (layer)))
{
g_set_error_literal (error, 0, 0,
_("Cannot merge down to a layer group."));
return NULL;
}
if (gimp_item_is_content_locked (GIMP_ITEM (layer)))
{
g_set_error_literal (error, 0, 0,
_("The layer to merge down to is locked."));
return NULL;
}
merge_list = g_slist_append (NULL, layer);
break;
}
}
if (! merge_list)
{
g_set_error_literal (error, 0, 0,
_("There is no visible layer to merge down to."));
return NULL;
}
merge_list = g_slist_prepend (merge_list, current_layer);
gimp_set_busy (image->gimp);
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_IMAGE_LAYERS_MERGE,
C_("undo-type", "Merge Down"));
layer = gimp_image_merge_layers (image,
gimp_item_get_container (GIMP_ITEM (current_layer)),
merge_list, context, merge_type);
g_slist_free (merge_list);
gimp_image_undo_group_end (image);
gimp_unset_busy (image->gimp);
return layer;
}
