Implement undo/redo.

[nageru] / futatabi / mainwindow.h

diff --git a/futatabi/mainwindow.h b/futatabi/mainwindow.h
index e21b3f38c181ef994f5120cffe4fd12b83a75812..36126744eba8b370e91cb70557a2448052c70bba 100644 (file)
--- a/futatabi/mainwindow.h
+++ b/futatabi/mainwindow.h
@@ -5,6 +5,7 @@
 #include "db.h"
 #include "state.pb.h"
 
+#include <deque>
 #include <memory>
 #include <mutex>
 #include <QLabel>
@@ -62,6 +63,9 @@ private:
        std::string deferred_change_id;
        StateProto deferred_state;
 
+       // NOTE: The undo stack always has the current state on top.
+       std::deque<StateProto> undo_stack, redo_stack;
+
        // Before a change that should be deferred (see above), currently_deferring_model_changes
        // must be set to true, and current_change_id must be given contents describing what's
        // changed to avoid accidental grouping.
@@ -106,6 +110,8 @@ private:
        void export_playlist_clip_interpolated_triggered();
        void manual_triggered();
        void about_triggered();
+       void undo_triggered();
+       void redo_triggered();
 
        void highlight_camera_input(int stream_idx);