Outliner Visibility: Alt+H operator to unhide all objects and collections

3 files changed, 41 insertions, 0 deletions

diff --git a/source/blender/editors/space_outliner/outliner_collections.c b/source/blender/editors/space_outliner/outliner_collections.c
index b0446b97597..a07fe4b9e15 100644
--- a/source/blender/editors/space_outliner/outliner_collections.c
+++ b/source/blender/editors/space_outliner/outliner_collections.c
@@ -1253,6 +1253,45 @@ void OUTLINER_OT_hide(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
+static int outliner_unhide_all_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Scene *scene = CTX_data_scene(C);
+	ViewLayer *view_layer = CTX_data_view_layer(C);
+
+	/* Unhide all the collections. */
+	LayerCollection *lc_master = view_layer->layer_collections.first;
+	for (LayerCollection *lc_iter = lc_master->layer_collections.first; lc_iter; lc_iter = lc_iter->next) {
+		lc_iter->flag &= ~LAYER_COLLECTION_RESTRICT_VIEW;
+		layer_collection_flag_recursive_set(lc_iter, LAYER_COLLECTION_RESTRICT_VIEW);
+	}
+
+	/* Unhide all objects. */
+	for (Base *base = view_layer->object_bases.first; base; base = base->next) {
+		base->flag &= ~BASE_HIDDEN;
+	}
+
+	BKE_layer_collection_sync(scene, view_layer);
+	DEG_id_tag_update(&scene->id, ID_RECALC_BASE_FLAGS);
+
+	WM_main_add_notifier(NC_SCENE | ND_LAYER_CONTENT, NULL);
+	return OPERATOR_FINISHED;
+}
+
+void OUTLINER_OT_unhide_all(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Unhide All";
+	ot->idname = "OUTLINER_OT_unhide_all";
+	ot->description = "Unhide all objects and collections";
+
+	/* api callbacks */
+	ot->exec = outliner_unhide_all_exec;
+	ot->poll = outliner_view_layer_collections_editor_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
 /**
  * Populates the \param objects: ListBase with all the outliner selected objects
  * We store it as (Object *)LinkData->data
diff --git a/source/blender/editors/space_outliner/outliner_intern.h b/source/blender/editors/space_outliner/outliner_intern.h
index 52deda50c2a..80d734c77f2 100644
--- a/source/blender/editors/space_outliner/outliner_intern.h
+++ b/source/blender/editors/space_outliner/outliner_intern.h
@@ -337,6 +337,7 @@ void OUTLINER_OT_collection_disable(struct wmOperatorType *ot);
 void OUTLINER_OT_collection_enable_render(struct wmOperatorType *ot);
 void OUTLINER_OT_collection_disable_render(struct wmOperatorType *ot);
 void OUTLINER_OT_hide(struct wmOperatorType *ot);
+void OUTLINER_OT_unhide_all(struct wmOperatorType *ot);
 
 /* outliner_utils.c ---------------------------------------------- */
 
diff --git a/source/blender/editors/space_outliner/outliner_ops.c b/source/blender/editors/space_outliner/outliner_ops.c
index e1f82ad9cda..b296b9edcd6 100644
--- a/source/blender/editors/space_outliner/outliner_ops.c
+++ b/source/blender/editors/space_outliner/outliner_ops.c
@@ -115,6 +115,7 @@ void outliner_operatortypes(void)
 	WM_operatortype_append(OUTLINER_OT_collection_hide_inside);
 	WM_operatortype_append(OUTLINER_OT_collection_show_inside);
 	WM_operatortype_append(OUTLINER_OT_hide);
+	WM_operatortype_append(OUTLINER_OT_unhide_all);
 }
 
 void outliner_keymap(wmKeyConfig *keyconf)