diff options
Diffstat (limited to 'libs/pbd/pbd/undo.h')
-rw-r--r-- | libs/pbd/pbd/undo.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/libs/pbd/pbd/undo.h b/libs/pbd/pbd/undo.h index 5bfccf5a06..8f1716d09f 100644 --- a/libs/pbd/pbd/undo.h +++ b/libs/pbd/pbd/undo.h @@ -80,20 +80,24 @@ class UndoHistory : public sigc::trackable unsigned long undo_depth() const { return UndoList.size(); } unsigned long redo_depth() const { return RedoList.size(); } - std::string next_undo() const { return (UndoList.empty() ? std::string("") : UndoList.back()->name()); } - std::string next_redo() const { return (RedoList.empty() ? std::string("") : RedoList.back()->name()); } + std::string next_undo() const { return (UndoList.empty() ? std::string() : UndoList.back()->name()); } + std::string next_redo() const { return (RedoList.empty() ? std::string() : RedoList.back()->name()); } void clear (); void clear_undo (); void clear_redo (); - XMLNode &get_state(uint32_t depth = 0); - void save_state(); + XMLNode &get_state(int32_t depth = 0); + void save_state(); - sigc::signal<void> Changed; + void set_depth (int32_t); + int32_t get_depth() const { return _depth; } + sigc::signal<void> Changed; + private: bool _clearing; + int32_t _depth; std::list<UndoTransaction*> UndoList; std::list<UndoTransaction*> RedoList; |