Add Ctrl+scrollwheel zoom to the timeline (#2781).

[dcpomatic.git] / src / wx / timeline.h

diff --git a/src/wx/timeline.h b/src/wx/timeline.h
index 2485e835fa8e4faa235d605d53371d5a09d8d5e7..621609fa7e66b94a2ae1f8cd73f2d548ce609368 100644 (file)
--- a/src/wx/timeline.h
+++ b/src/wx/timeline.h
@@ -110,6 +110,7 @@ private:
        void set_pixels_per_track (int h);
        void zoom_all ();
        void update_playhead ();
+       void mouse_wheel_turned(wxMouseEvent& event);
 
        std::shared_ptr<TimelineView> event_to_view (wxMouseEvent &);
        TimelineContentViewList selected_views () const;
@@ -143,6 +144,8 @@ private:
        int _pixels_per_track;
        bool _first_resize;
        wxTimer _timer;
+       boost::optional<int> _last_mouse_wheel_x;
+       boost::optional<double> _last_mouse_wheel_time;
 
        static double const _minimum_pixels_per_second;
        static int const _minimum_pixels_per_track;