Found another one -- does this ever end? :)
[ardour.git] / gtk2_ardour / editor.h
index b43beff9bc4c0818d680f7ec70804a46c391ae38..b7c3d7e2c5844215d607a5f5f71cfa2625993a54 100644 (file)
@@ -61,6 +61,8 @@
 #include "selection_memento.h"
 #include "tempo_curve.h"
 
+#include "ptformat/ptfformat.h"
+
 namespace Gtkmm2ext {
        class Bindings;
 }
@@ -128,6 +130,7 @@ class RulerDialog;
 class Selection;
 class SoundFileOmega;
 class StreamView;
+class GridLines;
 class TempoLines;
 class TimeAxisView;
 class TimeInfoBox;
@@ -142,17 +145,17 @@ public:
        Editor ();
        ~Editor ();
 
-       void             set_session (ARDOUR::Session *);
+       void             set_session (ARDOUR::Session*);
 
        Gtk::Window* use_own_window (bool and_fill_it);
 
        void             first_idle ();
        virtual bool     have_idled () const { return _have_idled; }
 
-       framepos_t leftmost_sample() const { return leftmost_frame; }
+       samplepos_t leftmost_sample() const { return _leftmost_sample; }
 
-       framecnt_t current_page_samples() const {
-               return (framecnt_t) _visible_canvas_width * samples_per_pixel;
+       samplecnt_t current_page_samples() const {
+               return (samplecnt_t) _visible_canvas_width* samples_per_pixel;
        }
 
        double visible_canvas_height () const {
@@ -161,19 +164,15 @@ public:
        double trackviews_height () const;
 
        void cycle_snap_mode ();
-       void next_snap_choice ();
-       void next_snap_choice_music_only ();
-       void next_snap_choice_music_and_time ();
-       void prev_snap_choice ();
-       void prev_snap_choice_music_only ();
-       void prev_snap_choice_music_and_time ();
-       void set_snap_to (Editing::SnapType);
+       void next_grid_choice ();
+       void prev_grid_choice ();
+       void set_grid_to (Editing::GridType);
        void set_snap_mode (Editing::SnapMode);
-       void set_snap_threshold (double pixel_distance) {snap_threshold = pixel_distance;}
 
        Editing::SnapMode  snap_mode () const;
-       Editing::SnapType  snap_type () const;
-       bool  snap_musical () const;
+       Editing::GridType  grid_type () const;
+       bool  grid_musical () const;
+       bool  grid_nonmusical () const;
 
        void undo (uint32_t n = 1);
        void redo (uint32_t n = 1);
@@ -181,11 +180,11 @@ public:
        XMLNode& get_state ();
        int set_state (const XMLNode&, int version);
 
-       void set_mouse_mode (Editing::MouseMode, bool force=true);
+       void set_mouse_mode (Editing::MouseMode, bool force = false);
        void step_mouse_mode (bool next);
        Editing::MouseMode current_mouse_mode () const { return mouse_mode; }
        Editing::MidiEditMode current_midi_edit_mode () const;
-       void remove_midi_note (ArdourCanvas::Item *, GdkEvent *);
+       void remove_midi_note (ArdourCanvas::Item*, GdkEvent*);
 
        bool internal_editing() const;
 
@@ -219,7 +218,7 @@ public:
           account any scrolling offsets.
        */
 
-       framepos_t pixel_to_sample_from_event (double pixel) const {
+       samplepos_t pixel_to_sample_from_event (double pixel) const {
 
                /* pixel can be less than zero when motion events
                   are processed. since we've already run the world->canvas
@@ -234,22 +233,22 @@ public:
                }
        }
 
-       framepos_t pixel_to_sample (double pixel) const {
+       samplepos_t pixel_to_sample (double pixel) const {
                return pixel * samples_per_pixel;
        }
 
-       double sample_to_pixel (framepos_t sample) const {
+       double sample_to_pixel (samplepos_t sample) const {
                return round (sample / (double) samples_per_pixel);
        }
 
-       double sample_to_pixel_unrounded (framepos_t sample) const {
+       double sample_to_pixel_unrounded (samplepos_t sample) const {
                return sample / (double) samples_per_pixel;
        }
 
        /* selection */
 
        Selection& get_selection() const { return *selection; }
-       bool get_selection_extents (framepos_t &start, framepos_t &end) const;  // the time extents of the current selection, whether Range, Region(s), Control Points, or Notes
+       bool get_selection_extents (samplepos_t &start, samplepos_t &end) const;  // the time extents of the current selection, whether Range, Region(s), Control Points, or Notes
        Selection& get_cut_buffer() const { return *cut_buffer; }
 
        void set_selection (std::list<Selectable*>, Selection::Operation);
@@ -257,7 +256,7 @@ public:
        bool extend_selection_to_track (TimeAxisView&);
 
        void play_selection ();
-       void maybe_locate_with_edit_preroll (framepos_t);
+       void maybe_locate_with_edit_preroll (samplepos_t);
        void play_with_preroll ();
        void rec_with_preroll ();
        void rec_with_count_in ();
@@ -266,7 +265,7 @@ public:
        void invert_selection_in_track ();
        void invert_selection ();
        void deselect_all ();
-       long select_range (framepos_t, framepos_t);
+       long select_range (samplepos_t, samplepos_t);
 
        void set_selected_regionview_from_region_list (boost::shared_ptr<ARDOUR::Region> region, Selection::Operation op = Selection::Set);
 
@@ -274,8 +273,7 @@ public:
 
        /* tempo */
 
-       void set_show_measures (bool yn);
-       bool show_measures () const { return _show_measures; }
+       void update_grid ();
 
        /* analysis window */
 
@@ -297,7 +295,7 @@ public:
 
        void               set_zoom_focus (Editing::ZoomFocus);
        Editing::ZoomFocus get_zoom_focus () const { return zoom_focus; }
-       framecnt_t         get_current_zoom () const { return samples_per_pixel; }
+       samplecnt_t        get_current_zoom () const { return samples_per_pixel; }
        void               cycle_zoom_focus ();
        void temporal_zoom_step (bool zoom_out);
        void temporal_zoom_step_scale (bool zoom_out, double scale);
@@ -331,10 +329,10 @@ public:
 
        /* nudge is initiated by transport controls owned by ARDOUR_UI */
 
-       framecnt_t get_nudge_distance (framepos_t pos, framecnt_t& next);
-       framecnt_t get_paste_offset (framepos_t pos, unsigned paste_count, framecnt_t duration);
-       unsigned get_grid_beat_divisions(framepos_t position);
-       Evoral::Beats get_grid_type_as_beats (bool& success, framepos_t position);
+       samplecnt_t get_nudge_distance (samplepos_t pos, samplecnt_t& next);
+       samplecnt_t get_paste_offset (samplepos_t pos, unsigned paste_count, samplecnt_t duration);
+       unsigned get_grid_beat_divisions(samplepos_t position);
+       Temporal::Beats get_grid_type_as_beats (bool& success, samplepos_t position);
 
        int32_t get_grid_music_divisions (uint32_t event_state);
 
@@ -362,20 +360,15 @@ public:
        void toggle_zero_line_visibility ();
        void set_summary ();
        void set_group_tabs ();
-       void toggle_measure_visibility ();
 
        /* returns the left-most and right-most time that the gui should allow the user to scroll to */
-       std::pair <framepos_t,framepos_t> session_gui_extents() const; 
+       std::pair <samplepos_t,samplepos_t> session_gui_extents (bool use_extra = true) const;
 
        /* fades */
 
        void toggle_region_fades (int dir);
        void update_region_fade_visibility ();
 
-       /* redirect shared ops menu. caller must free returned menu */
-
-       Gtk::Menu* redirect_menu ();
-
        /* floating windows/transient */
 
        void ensure_float (Gtk::Window&);
@@ -401,15 +394,15 @@ public:
        void restore_editing_space();
 
        double get_y_origin () const;
-       void reset_x_origin (framepos_t);
+       void reset_x_origin (samplepos_t);
        void reset_x_origin_to_follow_playhead ();
        void reset_y_origin (double);
-       void reset_zoom (framecnt_t);
-       void reposition_and_zoom (framepos_t, double);
+       void reset_zoom (samplecnt_t);
+       void reposition_and_zoom (samplepos_t, double);
 
-       framepos_t get_preferred_edit_position (Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE,
-                                               bool use_context_click = false,
-                                               bool from_outside_canvas = false);
+       samplepos_t get_preferred_edit_position (Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE,
+                                                bool use_context_click = false,
+                                                bool from_outside_canvas = false);
 
        bool update_mouse_speed ();
        bool decelerate_mouse_speed ();
@@ -439,38 +432,35 @@ public:
                        ARDOUR::SrcQuality                    quality,
                        ARDOUR::MidiTrackNameSource           mts,
                        ARDOUR::MidiTempoMapDisposition       mtd,
-                       framepos_t&                           pos,
+                       samplepos_t&                          pos,
                        boost::shared_ptr<ARDOUR::PluginInfo> instrument = boost::shared_ptr<ARDOUR::PluginInfo>());
 
        void do_embed (std::vector<std::string>              paths,
                       Editing::ImportDisposition            disposition,
                       Editing::ImportMode                   mode,
-                      framepos_t&                           pos,
+                      samplepos_t&                          pos,
                       boost::shared_ptr<ARDOUR::PluginInfo> instrument = boost::shared_ptr<ARDOUR::PluginInfo>());
 
        void get_regions_corresponding_to (boost::shared_ptr<ARDOUR::Region> region, std::vector<RegionView*>& regions, bool src_comparison);
 
        void get_regionviews_by_id (PBD::ID const id, RegionSelection & regions) const;
-       void get_per_region_note_selection (std::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Evoral::Beats> > > > >&) const;
+       void get_per_region_note_selection (std::list<std::pair<PBD::ID, std::set<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > >&) const;
 
-       void center_screen (framepos_t);
+       void center_screen (samplepos_t);
 
        TrackViewList axis_views_from_routes (boost::shared_ptr<ARDOUR::RouteList>) const;
 
-       void snap_to (ARDOUR::MusicFrame& first,
-                     ARDOUR::RoundMode   direction = ARDOUR::RoundNearest,
-                     bool                for_mark  = false,
-                     bool                ensure_snap = false);
+       void snap_to (ARDOUR::MusicSample& first,
+                     ARDOUR::RoundMode    direction = ARDOUR::RoundNearest,
+                     ARDOUR::SnapPref     pref = ARDOUR::SnapToAny_Visual,
+                     bool                 ensure_snap = false);
 
-       void snap_to_with_modifier (ARDOUR::MusicFrame& first,
-                                   GdkEvent const *    ev,
-                                   ARDOUR::RoundMode   direction = ARDOUR::RoundNearest,
-                                   bool                for_mark  = false);
+       void snap_to_with_modifier (ARDOUR::MusicSample& first,
+                                   GdkEvent const*      ev,
+                                   ARDOUR::RoundMode    direction = ARDOUR::RoundNearest,
+                                   ARDOUR::SnapPref     pref = ARDOUR::SnapToAny_Visual);
 
-       void snap_to (ARDOUR::MusicFrame& first,
-                     ARDOUR::MusicFrame& last,
-                     ARDOUR::RoundMode   direction = ARDOUR::RoundNearest,
-                     bool                for_mark  = false);
+       void set_snapped_cursor_position (samplepos_t pos);
 
        void begin_selection_op_history ();
        void begin_reversible_selection_op (std::string cmd_name);
@@ -494,7 +484,7 @@ public:
        void set_current_trimmable (boost::shared_ptr<ARDOUR::Trimmable>);
        void set_current_movable (boost::shared_ptr<ARDOUR::Movable>);
 
-       MouseCursors const * cursors () const {
+       MouseCursors const* cursors () const {
                return _cursors;
        }
 
@@ -533,6 +523,7 @@ public:
        ArdourCanvas::ScrollGroup* get_hscroll_group () const { return h_scroll_group; }
        ArdourCanvas::ScrollGroup* get_hvscroll_group () const { return hv_scroll_group; }
        ArdourCanvas::ScrollGroup* get_cursor_scroll_group () const { return cursor_scroll_group; }
+       ArdourCanvas::Container* get_drag_motion_group () const { return _drag_motion_group; }
 
        ArdourCanvas::GtkCanvasViewport* get_track_canvas () const;
 
@@ -546,19 +537,19 @@ public:
        void metric_get_minsec (std::vector<ArdourCanvas::Ruler::Mark>&, gdouble, gdouble, gint);
 
        /* editing operations that need to be public */
-       void mouse_add_new_marker (framepos_t where, bool is_cd=false);
-       void split_regions_at (ARDOUR::MusicFrame, RegionSelection&, bool snap = true);
+       void mouse_add_new_marker (samplepos_t where, bool is_cd=false);
+       void split_regions_at (ARDOUR::MusicSample, RegionSelection&);
        void split_region_at_points (boost::shared_ptr<ARDOUR::Region>, ARDOUR::AnalysisFeatureList&, bool can_ferret, bool select_new = false);
-       RegionSelection get_regions_from_selection_and_mouse (framepos_t);
+       RegionSelection get_regions_from_selection_and_mouse (samplepos_t);
 
-       void mouse_add_new_tempo_event (framepos_t where);
-       void mouse_add_new_meter_event (framepos_t where);
+       void mouse_add_new_tempo_event (samplepos_t where);
+       void mouse_add_new_meter_event (samplepos_t where);
        void edit_tempo_section (ARDOUR::TempoSection*);
        void edit_meter_section (ARDOUR::MeterSection*);
 
 protected:
        void map_transport_state ();
-       void map_position_change (framepos_t);
+       void map_position_change (samplepos_t);
        void transport_looped ();
 
        void on_realize();
@@ -573,7 +564,7 @@ private:
        bool                 constructed;
 
        // to keep track of the playhead position for control_scroll
-       boost::optional<framepos_t> _control_scroll_target;
+       boost::optional<samplepos_t> _control_scroll_target;
 
        PlaylistSelector* _playlist_selector;
 
@@ -585,8 +576,8 @@ private:
                VisualState (bool with_tracks);
                ~VisualState ();
                double              y_position;
-               framecnt_t          samples_per_pixel;
-               framepos_t          leftmost_frame;
+               samplecnt_t         samples_per_pixel;
+               samplepos_t        _leftmost_sample;
                Editing::ZoomFocus  zoom_focus;
                GUIObjectState*     gui_state;
        };
@@ -604,17 +595,17 @@ private:
        void start_visual_state_op (uint32_t n);
        void cancel_visual_state_op (uint32_t n);
 
-       framepos_t         leftmost_frame;
-       framecnt_t         samples_per_pixel;
+       samplepos_t       _leftmost_sample;
+       samplecnt_t        samples_per_pixel;
        Editing::ZoomFocus zoom_focus;
 
-       void set_samples_per_pixel (framecnt_t);
+       void set_samples_per_pixel (samplecnt_t);
        void on_samples_per_pixel_changed ();
 
        Editing::MouseMode mouse_mode;
-       Editing::SnapType  pre_internal_snap_type;
+       Editing::GridType  pre_internal_grid_type;
        Editing::SnapMode  pre_internal_snap_mode;
-       Editing::SnapType  internal_snap_type;
+       Editing::GridType  internal_grid_type;
        Editing::SnapMode  internal_snap_mode;
        Editing::MouseMode effective_mouse_mode () const;
 
@@ -635,29 +626,29 @@ private:
        Gtk::VBox _editor_list_vbox;
        Gtk::Notebook _the_notebook;
        bool _notebook_shrunk;
-       void add_notebook_page (std::string const &, Gtk::Widget &);
-       bool notebook_tab_clicked (GdkEventButton *, Gtk::Widget *);
+       void add_notebook_page (std::string const&, Gtk::Widget&);
+       bool notebook_tab_clicked (GdkEventButton*, Gtk::Widget*);
 
        ArdourWidgets::HPane edit_pane;
        ArdourWidgets::VPane editor_summary_pane;
 
        Gtk::EventBox meter_base;
-       Gtk::HBox     meter_box;
        Gtk::EventBox marker_base;
        Gtk::HBox     marker_box;
        Gtk::VBox     scrollers_rulers_markers_box;
 
-       void location_changed (ARDOUR::Location *);
-       void location_flags_changed (ARDOUR::Location *);
+       void location_changed (ARDOUR::Location*);
+       void location_flags_changed (ARDOUR::Location*);
        void refresh_location_display ();
        void refresh_location_display_internal (const ARDOUR::Locations::LocationList&);
-       void add_new_location (ARDOUR::Location *);
-       ArdourCanvas::Container* add_new_location_internal (ARDOUR::Location *);
-       void location_gone (ARDOUR::Location *);
+       void add_new_location (ARDOUR::Location*);
+       ArdourCanvas::Container* add_new_location_internal (ARDOUR::Location*);
+       void location_gone (ARDOUR::Location*);
        void remove_marker (ArdourCanvas::Item&, GdkEvent*);
        gint really_remove_marker (ARDOUR::Location* loc);
        void goto_nth_marker (int nth);
        void trigger_script (int nth);
+       void trigger_script_by_name (const std::string script_name);
        void toggle_marker_lines ();
        void set_marker_line_visibility (bool);
 
@@ -688,22 +679,22 @@ private:
                void setup_lines ();
 
                void set_name (const std::string&);
-               void set_position (framepos_t start, framepos_t end = 0);
+               void set_position (samplepos_t start, samplepos_t end = 0);
                void set_color_rgba (uint32_t);
        };
 
-       LocationMarkers  *find_location_markers (ARDOUR::Location *) const;
-       ARDOUR::Location* find_location_from_marker (ArdourMarker *, bool& is_start) const;
-       ArdourMarker* find_marker_from_location_id (PBD::ID const &, bool) const;
+       LocationMarkers*  find_location_markers (ARDOUR::Location*) const;
+       ARDOUR::Location* find_location_from_marker (ArdourMarker*, bool& is_start) const;
+       ArdourMarker* find_marker_from_location_id (PBD::ID const&, bool) const;
        ArdourMarker* entered_marker;
        bool _show_marker_lines;
 
-       typedef std::map<ARDOUR::Location*,LocationMarkers *> LocationMarkerMap;
+       typedef std::map<ARDOUR::Location*,LocationMarkers*> LocationMarkerMap;
        LocationMarkerMap location_markers;
 
        void update_marker_labels ();
-       void update_marker_labels (ArdourCanvas::Container *);
-       void check_marker_label (ArdourMarker *);
+       void update_marker_labels (ArdourCanvas::Container*);
+       void check_marker_label (ArdourMarker*);
 
        /** A set of lists of Markers that are in each of the canvas groups
         *  for the marker sections at the top of the editor.  These lists
@@ -711,17 +702,17 @@ private:
         *  a marker has moved we can decide whether we need to update the labels
         *  for all markers or for just a few.
         */
-       std::map<ArdourCanvas::Container *, std::list<ArdourMarker *> > _sorted_marker_lists;
-       void remove_sorted_marker (ArdourMarker *);
+       std::map<ArdourCanvas::Container*, std::list<ArdourMarker*> > _sorted_marker_lists;
+       void remove_sorted_marker (ArdourMarker*);
 
        void hide_marker (ArdourCanvas::Item*, GdkEvent*);
        void clear_marker_display ();
-       void mouse_add_new_range (framepos_t);
-       void mouse_add_new_loop (framepos_t);
-       void mouse_add_new_punch (framepos_t);
-       bool choose_new_marker_name(std::string &name);
+       void mouse_add_new_range (samplepos_t);
+       void mouse_add_new_loop (samplepos_t);
+       void mouse_add_new_punch (samplepos_t);
+       bool choose_new_marker_name(std::string &name, bool is_range=false);
        void update_cd_marker_display ();
-       void ensure_cd_marker_updated (LocationMarkers * lam, ARDOUR::Location * location);
+       void ensure_cd_marker_updated (LocationMarkers* lam, ARDOUR::Location* location);
 
        TimeAxisView*      clicked_axisview;
        RouteTimeAxisView* clicked_routeview;
@@ -745,7 +736,7 @@ private:
        void mapover_tracks_with_unique_playlists (sigc::slot<void,RouteTimeAxisView&,uint32_t> sl, TimeAxisView*, PBD::PropertyID) const;
 
        /* functions to be passed to mapover_tracks(), possibly with sigc::bind()-supplied arguments */
-       void mapped_get_equivalent_regions (RouteTimeAxisView&, uint32_t, RegionView *, std::vector<RegionView*>*) const;
+       void mapped_get_equivalent_regions (RouteTimeAxisView&, uint32_t, RegionView*, std::vector<RegionView*>*) const;
        void mapped_use_new_playlist (RouteTimeAxisView&, uint32_t, std::vector<boost::shared_ptr<ARDOUR::Playlist> > const &);
        void mapped_use_copy_playlist (RouteTimeAxisView&, uint32_t, std::vector<boost::shared_ptr<ARDOUR::Playlist> > const &);
        void mapped_clear_playlist (RouteTimeAxisView&, uint32_t);
@@ -754,7 +745,7 @@ private:
        bool button_release_can_deselect;
        bool _mouse_changed_selection;
 
-       void catch_vanishing_regionview (RegionView *);
+       void catch_vanishing_regionview (RegionView*);
 
        void set_selected_track (TimeAxisView&, Selection::Operation op = Selection::Set, bool no_remove=false);
        void select_all_tracks ();
@@ -766,19 +757,13 @@ private:
        bool set_selected_regionview_from_click (bool press, Selection::Operation op = Selection::Set);
 
        bool set_selected_regionview_from_map_event (GdkEventAny*, StreamView*, boost::weak_ptr<ARDOUR::Region>);
-       void collect_new_region_view (RegionView *);
-       void collect_and_select_new_region_view (RegionView *);
+       void collect_new_region_view (RegionView*);
+       void collect_and_select_new_region_view (RegionView*);
 
        Gtk::Menu track_context_menu;
        Gtk::Menu track_region_context_menu;
        Gtk::Menu track_selection_context_menu;
 
-       Gtk::MenuItem* region_edit_menu_split_item;
-       Gtk::MenuItem* region_edit_menu_split_multichannel_item;
-       Gtk::Menu * track_region_edit_playlist_menu;
-       Gtk::Menu * track_edit_playlist_submenu;
-       Gtk::Menu * track_selection_edit_playlist_submenu;
-
        GdkEvent context_click_event;
 
        void popup_track_context_menu (int, int, ItemType, bool);
@@ -792,15 +777,15 @@ private:
        void add_selection_context_items (Gtk::Menu_Helpers::MenuList&);
        Gtk::MenuItem* _popup_region_menu_item;
 
-       void popup_control_point_context_menu (ArdourCanvas::Item *, GdkEvent *);
+       void popup_control_point_context_menu (ArdourCanvas::Item*, GdkEvent*);
        Gtk::Menu _control_point_context_menu;
 
-       void popup_note_context_menu (ArdourCanvas::Item *, GdkEvent *);
+       void popup_note_context_menu (ArdourCanvas::Item*, GdkEvent*);
        Gtk::Menu _note_context_menu;
 
        void add_stripables (ARDOUR::StripableList&);
        void add_routes (ARDOUR::RouteList&);
-       void timeaxisview_deleted (TimeAxisView *);
+       void timeaxisview_deleted (TimeAxisView*);
        void add_vcas (ARDOUR::VCAList&);
 
        Gtk::HBox global_hpacker;
@@ -813,7 +798,6 @@ private:
        size_t push_canvas_cursor (Gdk::Cursor*);
        void pop_canvas_cursor ();
 
-       Gdk::Cursor* which_grabber_cursor () const;
        Gdk::Cursor* which_track_cursor () const;
        Gdk::Cursor* which_mode_cursor () const;
        Gdk::Cursor* which_trim_cursor (bool left_side) const;
@@ -836,18 +820,18 @@ private:
        void parameter_changed (std::string);
        void ui_parameter_changed (std::string);
 
-       Gtk::EventBox             time_bars_event_box;
-       Gtk::VBox                 time_bars_vbox;
+       Gtk::EventBox            time_bars_event_box;
+       Gtk::VBox                time_bars_vbox;
 
-       ArdourCanvas::Container      *tempo_group;
-       ArdourCanvas::Container      *meter_group;
-       ArdourCanvas::Container      *marker_group;
-       ArdourCanvas::Container      *range_marker_group;
-       ArdourCanvas::Container      *transport_marker_group;
-       ArdourCanvas::Container*      cd_marker_group;
+       ArdourCanvas::Containertempo_group;
+       ArdourCanvas::Containermeter_group;
+       ArdourCanvas::Containermarker_group;
+       ArdourCanvas::Containerrange_marker_group;
+       ArdourCanvas::Containertransport_marker_group;
+       ArdourCanvas::Container* cd_marker_group;
 
        /* parent for groups which themselves contain time markers */
-       ArdourCanvas::Container*     _time_markers_group;
+       ArdourCanvas::Container* _time_markers_group;
 
        /* The group containing all other groups that are scrolled vertically
           and horizontally.
@@ -879,21 +863,6 @@ private:
        ArdourCanvas::Rectangle* _canvas_drop_zone;
        bool canvas_drop_zone_event (GdkEvent* event);
 
-       enum RulerType {
-               ruler_metric_timecode = 0,
-               ruler_metric_bbt = 1,
-               ruler_metric_samples = 2,
-               ruler_metric_minsec = 3,
-
-               ruler_time_tempo = 4,
-               ruler_time_meter = 5,
-               ruler_time_marker = 6,
-               ruler_time_range_marker = 7,
-               ruler_time_transport_marker = 8,
-               ruler_time_cd_marker = 9,
-               ruler_video_timeline = 10,
-       };
-
        Glib::RefPtr<Gtk::ToggleAction> ruler_timecode_action;
        Glib::RefPtr<Gtk::ToggleAction> ruler_bbt_action;
        Glib::RefPtr<Gtk::ToggleAction> ruler_samples_action;
@@ -906,7 +875,7 @@ private:
        Glib::RefPtr<Gtk::ToggleAction> ruler_cd_marker_action;
        bool                            no_ruler_shown_update;
 
-       Gtk::Widget * ruler_grabbed_widget;
+       Gtk::Widget* ruler_grabbed_widget;
 
        RulerDialog* ruler_dialog;
 
@@ -915,18 +884,16 @@ private:
        void compute_fixed_ruler_scale (); //calculates the RulerScale of the fixed rulers
        void update_fixed_rulers ();
        void update_tempo_based_rulers ();
-       void popup_ruler_menu (framepos_t where = 0, ItemType type = RegionItem);
+       void popup_ruler_menu (samplepos_t where = 0, ItemType type = RegionItem);
        void update_ruler_visibility ();
-       void set_ruler_visible (RulerType, bool);
-       void toggle_ruler_visibility (RulerType rt);
+       void toggle_ruler_visibility ();
        void ruler_toggled (int);
        bool ruler_label_button_release (GdkEventButton*);
        void store_ruler_visibility ();
        void restore_ruler_visibility ();
+       void show_rulers_for_grid ();
 
-
-
-               enum MinsecRulerScale {
+       enum MinsecRulerScale {
                minsec_show_msecs,
                minsec_show_seconds,
                minsec_show_minutes,
@@ -936,14 +903,14 @@ private:
 
        MinsecRulerScale minsec_ruler_scale;
 
-       framecnt_t minsec_mark_interval;
+       samplecnt_t minsec_mark_interval;
        gint minsec_mark_modulo;
        gint minsec_nmarks;
-       void set_minsec_ruler_scale (framepos_t, framepos_t);
+       void set_minsec_ruler_scale (samplepos_t, samplepos_t);
 
        enum TimecodeRulerScale {
                timecode_show_bits,
-               timecode_show_frames,
+               timecode_show_samples,
                timecode_show_seconds,
                timecode_show_minutes,
                timecode_show_hours,
@@ -954,10 +921,10 @@ private:
 
        gint timecode_mark_modulo;
        gint timecode_nmarks;
-       void set_timecode_ruler_scale (framepos_t, framepos_t);
+       void set_timecode_ruler_scale (samplepos_t, samplepos_t);
 
-       framecnt_t _samples_ruler_interval;
-       void set_samples_ruler_scale (framepos_t, framepos_t);
+       samplecnt_t _samples_ruler_interval;
+       void set_samples_ruler_scale (samplepos_t, samplepos_t);
 
        enum BBTRulerScale {
                bbt_show_many,
@@ -965,10 +932,10 @@ private:
                bbt_show_16,
                bbt_show_4,
                bbt_show_1,
-               bbt_show_beats,
-               bbt_show_ticks,
-               bbt_show_ticks_detail,
-               bbt_show_ticks_super_detail
+               bbt_show_quarters,
+               bbt_show_eighths,
+               bbt_show_sixteenths,
+               bbt_show_thirtyseconds
        };
 
        BBTRulerScale bbt_ruler_scale;
@@ -977,7 +944,7 @@ private:
        gint bbt_nmarks;
        uint32_t bbt_bar_helper_on;
        uint32_t bbt_accent_modulo;
-       void compute_bbt_ruler_scale (framepos_t lower, framepos_t upper);
+       void compute_bbt_ruler_scale (samplepos_t lower, samplepos_t upper);
 
        ArdourCanvas::Ruler* timecode_ruler;
        ArdourCanvas::Ruler* bbt_ruler;
@@ -986,7 +953,7 @@ private:
 
        static double timebar_height;
        guint32 visible_timebars;
-       Gtk::Menu          *editor_ruler_menu;
+       Gtk::Menueditor_ruler_menu;
 
        ArdourCanvas::Rectangle* tempo_bar;
        ArdourCanvas::Rectangle* meter_bar;
@@ -1031,10 +998,12 @@ private:
 
        friend class EditorCursor;
 
+       EditorCursor* snapped_cursor;
+
        EditorCursor* playhead_cursor;
-       framepos_t playhead_cursor_sample () const;
+       samplepos_t playhead_cursor_sample () const;
 
-       framepos_t get_region_boundary (framepos_t pos, int32_t dir, bool with_selection, bool only_onscreen);
+       samplepos_t get_region_boundary (samplepos_t pos, int32_t dir, bool with_selection, bool only_onscreen);
 
        void    cursor_to_region_boundary (bool with_selection, int32_t dir);
        void    cursor_to_next_region_boundary (bool with_selection);
@@ -1042,8 +1011,8 @@ private:
        void    cursor_to_next_region_point (EditorCursor*, ARDOUR::RegionPoint);
        void    cursor_to_previous_region_point (EditorCursor*, ARDOUR::RegionPoint);
        void    cursor_to_region_point (EditorCursor*, ARDOUR::RegionPoint, int32_t dir);
-       void    cursor_to_selection_start (EditorCursor *);
-       void    cursor_to_selection_end   (EditorCursor *);
+       void    cursor_to_selection_start (EditorCursor*);
+       void    cursor_to_selection_end   (EditorCursor*);
 
        void    selected_marker_to_region_boundary (bool with_selection, int32_t dir);
        void    selected_marker_to_next_region_boundary (bool with_selection);
@@ -1054,16 +1023,18 @@ private:
        void    selected_marker_to_selection_start ();
        void    selected_marker_to_selection_end   ();
 
-       void    select_all_selectables_using_cursor (EditorCursor *, bool);
+       void    select_all_selectables_using_cursor (EditorCursor*, bool);
        void    select_all_selectables_using_edit (bool, bool);
        void    select_all_selectables_between (bool within);
        void    select_range_between ();
 
-       boost::shared_ptr<ARDOUR::Region> find_next_region (ARDOUR::framepos_t, ARDOUR::RegionPoint, int32_t dir, TrackViewList&, TimeAxisView ** = 0);
-       ARDOUR::framepos_t find_next_region_boundary (ARDOUR::framepos_t, int32_t dir, const TrackViewList&);
+       boost::shared_ptr<ARDOUR::Region> find_next_region (ARDOUR::samplepos_t, ARDOUR::RegionPoint, int32_t dir, TrackViewList&, TimeAxisView** = 0);
+       ARDOUR::samplepos_t find_next_region_boundary (ARDOUR::samplepos_t, int32_t dir, const TrackViewList&);
 
-       std::vector<ARDOUR::framepos_t> region_boundary_cache;
+       std::vector<ARDOUR::samplepos_t> region_boundary_cache;
+       void mark_region_boundary_cache_dirty () { _region_boundary_cache_dirty = true; }
        void build_region_boundary_cache ();
+       bool    _region_boundary_cache_dirty;
 
        Gtk::HBox           toplevel_hpacker;
 
@@ -1100,8 +1071,8 @@ private:
        bool track_canvas_map_handler (GdkEventAny*);
 
        bool edit_controls_button_release (GdkEventButton*);
-       Gtk::Menu *edit_controls_left_menu;
-       Gtk::Menu *edit_controls_right_menu;
+       Gtk::Menuedit_controls_left_menu;
+       Gtk::Menuedit_controls_right_menu;
 
        Gtk::VBox           track_canvas_vbox;
        Gtk::VBox           edit_controls_vbox;
@@ -1119,7 +1090,7 @@ private:
        void control_unselect ();
        void access_action (const std::string&, const std::string&);
        void set_toggleaction (const std::string&, const std::string&, bool);
-       bool deferred_control_scroll (framepos_t);
+       bool deferred_control_scroll (samplepos_t);
        sigc::connection control_scroll_connection;
 
        void tie_vertical_scrolling ();
@@ -1134,10 +1105,10 @@ private:
                        VideoTimeline = 0x8
                };
 
-               Type       pending;
-               framepos_t time_origin;
-               framecnt_t samples_per_pixel;
-               double     y_origin;
+               Type        pending;
+               samplepos_t time_origin;
+               samplecnt_t samples_per_pixel;
+               double      y_origin;
 
                int idle_handler_id;
                /** true if we are currently in the idle handler */
@@ -1154,7 +1125,7 @@ private:
 
        void pre_render ();
 
-       static int _idle_visual_changer (void *arg);
+       static int _idle_visual_changer (voidarg);
        int idle_visual_changer ();
        void visual_changer (const VisualChange&);
        void ensure_visual_change_idle_handler ();
@@ -1173,7 +1144,7 @@ private:
        TrackViewList get_tracks_for_range_action () const;
 
        sigc::connection super_rapid_screen_update_connection;
-       void center_screen_internal (framepos_t, float);
+       void center_screen_internal (samplepos_t, float);
 
        void super_rapid_screen_update ();
 
@@ -1182,8 +1153,8 @@ private:
 
        void session_going_away ();
 
-       framepos_t cut_buffer_start;
-       framecnt_t cut_buffer_length;
+       samplepos_t cut_buffer_start;
+       samplecnt_t cut_buffer_length;
 
        boost::shared_ptr<CursorContext> _press_cursor_ctx;  ///< Button press cursor context
 
@@ -1192,8 +1163,8 @@ private:
 
        bool typed_event (ArdourCanvas::Item*, GdkEvent*, ItemType);
        bool button_press_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
-       bool button_press_handler_1 (ArdourCanvas::Item *, GdkEvent *, ItemType);
-       bool button_press_handler_2 (ArdourCanvas::Item *, GdkEvent *, ItemType);
+       bool button_press_handler_1 (ArdourCanvas::Item*, GdkEvent*, ItemType);
+       bool button_press_handler_2 (ArdourCanvas::Item*, GdkEvent*, ItemType);
        bool button_release_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
        bool button_double_click_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
        bool button_press_dispatch (GdkEventButton*);
@@ -1216,18 +1187,18 @@ private:
 
        /* CUT/COPY/PASTE */
 
-       framepos_t last_paste_pos;
-       unsigned   paste_count;
+       samplepos_t last_paste_pos;
+       unsigned    paste_count;
 
        void cut_copy (Editing::CutCopyOp);
        bool can_cut_copy () const;
-       void cut_copy_points (Editing::CutCopyOp, Evoral::Beats earliest=Evoral::Beats(), bool midi=false);
+       void cut_copy_points (Editing::CutCopyOp, Temporal::Beats earliest=Temporal::Beats(), bool midi=false);
        void cut_copy_regions (Editing::CutCopyOp, RegionSelection&);
        void cut_copy_ranges (Editing::CutCopyOp);
        void cut_copy_midi (Editing::CutCopyOp);
 
        void mouse_paste ();
-       void paste_internal (framepos_t position, float times, const int32_t sub_num);
+       void paste_internal (samplepos_t position, float times, const int32_t sub_num);
 
        /* EDITING OPERATIONS */
 
@@ -1240,6 +1211,8 @@ private:
        void toggle_mute ();
        void toggle_region_lock_style ();
 
+       void play_solo_selection (bool restart);
+
        enum LayerOperation {
                Raise,
                RaiseToTop,
@@ -1255,14 +1228,14 @@ private:
        void lower_region_to_bottom ();
        void split_region_at_transients ();
        void crop_region_to_selection ();
-       void crop_region_to (framepos_t start, framepos_t end);
-       void set_sync_point (framepos_t, const RegionSelection&);
+       void crop_region_to (samplepos_t start, samplepos_t end);
+       void set_sync_point (samplepos_t, const RegionSelection&);
        void set_region_sync_position ();
        void remove_region_sync();
        void align_regions (ARDOUR::RegionPoint);
        void align_regions_relative (ARDOUR::RegionPoint point);
-       void align_region (boost::shared_ptr<ARDOUR::Region>, ARDOUR::RegionPoint point, framepos_t position);
-       void align_region_internal (boost::shared_ptr<ARDOUR::Region>, ARDOUR::RegionPoint point, framepos_t position);
+       void align_region (boost::shared_ptr<ARDOUR::Region>, ARDOUR::RegionPoint point, samplepos_t position);
+       void align_region_internal (boost::shared_ptr<ARDOUR::Region>, ARDOUR::RegionPoint point, samplepos_t position);
        void remove_selected_regions ();
        void remove_clicked_region ();
        void show_region_properties ();
@@ -1295,10 +1268,10 @@ private:
        void fork_region ();
 
        void do_insert_time ();
-       void insert_time (framepos_t, framecnt_t, Editing::InsertTimeOption, bool, bool, bool, bool, bool, bool);
+       void insert_time (samplepos_t, samplecnt_t, Editing::InsertTimeOption, bool, bool, bool, bool, bool, bool);
 
        void do_remove_time ();
-       void remove_time (framepos_t pos, framecnt_t distance, Editing::InsertTimeOption opt, bool ignore_music_glue, bool markers_too,
+       void remove_time (samplepos_t pos, samplecnt_t distance, Editing::InsertTimeOption opt, bool ignore_music_glue, bool markers_too,
                        bool glued_markers_too, bool locked_markers_too, bool tempo_too);
 
        void tab_to_transient (bool forward);
@@ -1306,7 +1279,7 @@ private:
        void set_tempo_from_region ();
        void use_range_as_bar ();
 
-       void define_one_bar (framepos_t start, framepos_t end);
+       void define_one_bar (samplepos_t start, samplepos_t end);
 
        void audition_region_from_region_list ();
        void hide_region_from_region_list ();
@@ -1339,27 +1312,16 @@ private:
        void play_location (ARDOUR::Location&);
        void loop_location (ARDOUR::Location&);
 
-       void calc_extra_zoom_edges(framepos_t &start, framepos_t &end);
+       void calc_extra_zoom_edges(samplepos_t &start, samplepos_t &end);
        void temporal_zoom_selection (Editing::ZoomAxis);
        void temporal_zoom_session ();
-       void temporal_zoom (framecnt_t samples_per_pixel);
-       void temporal_zoom_by_frame (framepos_t start, framepos_t end);
-       void temporal_zoom_to_frame (bool coarser, framepos_t frame);
+       void temporal_zoom_extents ();
+       void temporal_zoom (samplecnt_t samples_per_pixel);
+       void temporal_zoom_by_sample (samplepos_t start, samplepos_t end);
+       void temporal_zoom_to_sample (bool coarser, samplepos_t sample);
 
        void insert_region_list_selection (float times);
 
-       /* PT import */
-       void external_pt_dialog ();
-       typedef struct ptflookup {
-               uint16_t index1;
-               uint16_t index2;
-               PBD::ID  id;
-
-               bool operator ==(const struct ptflookup& other) {
-                       return (this->index1 == other.index1);
-               }
-       } ptflookup_t;
-
        /* import & embed */
 
        void add_external_audio_action (Editing::ImportMode);
@@ -1369,16 +1331,16 @@ private:
 
        SoundFileOmega* sfbrowser;
 
-       void bring_in_external_audio (Editing::ImportMode mode,  framepos_t& pos);
+       void bring_in_external_audio (Editing::ImportMode mode,  samplepos_t& pos);
 
-       bool  idle_drop_paths  (std::vector<std::string> paths, framepos_t frame, double ypos, bool copy);
-       void  drop_paths_part_two  (const std::vector<std::string>& paths, framepos_t frame, double ypos, bool copy);
+       bool  idle_drop_paths  (std::vector<std::string> paths, samplepos_t sample, double ypos, bool copy);
+       void  drop_paths_part_two  (const std::vector<std::string>& paths, samplepos_t sample, double ypos, bool copy);
 
        int import_sndfiles (std::vector<std::string>              paths,
                             Editing::ImportDisposition            disposition,
                             Editing::ImportMode                   mode,
                             ARDOUR::SrcQuality                    quality,
-                            framepos_t&                           pos,
+                            samplepos_t&                          pos,
                             int                                   target_regions,
                             int                                   target_tracks,
                             boost::shared_ptr<ARDOUR::Track>&     track,
@@ -1390,7 +1352,7 @@ private:
                            bool&                                 check_sample_rate,
                            Editing::ImportDisposition            disposition,
                            Editing::ImportMode                   mode,
-                           framepos_t&                           pos,
+                           samplepos_t&                          pos,
                            int                                   target_regions,
                            int                                   target_tracks,
                            boost::shared_ptr<ARDOUR::Track>&     track,
@@ -1398,7 +1360,7 @@ private:
 
        int add_sources (std::vector<std::string>              paths,
                         ARDOUR::SourceList&                   sources,
-                        framepos_t&                           pos,
+                        samplepos_t&                          pos,
                         Editing::ImportDisposition            disposition,
                         Editing::ImportMode                   mode,
                         int                                   target_regions,
@@ -1410,7 +1372,7 @@ private:
        int finish_bringing_in_material (boost::shared_ptr<ARDOUR::Region>     region,
                                         uint32_t                              in_chans,
                                         uint32_t                              out_chans,
-                                        framepos_t&                           pos,
+                                        samplepos_t&                          pos,
                                         Editing::ImportMode                   mode,
                                         boost::shared_ptr<ARDOUR::Track>&     existing_track,
                                         const std::string&                    new_track_name,
@@ -1429,11 +1391,18 @@ private:
        void external_audio_dialog ();
        void session_import_dialog ();
 
+       /* PT import specific */
+       void external_pt_dialog ();
+       ARDOUR::ImportStatus import_pt_status;
+       static void*_import_pt_thread (void*);
+       void* import_pt_thread ();
+       PTFFormat import_ptf;
+
        /* import specific info */
 
        struct EditorImportStatus : public ARDOUR::ImportStatus {
            Editing::ImportMode mode;
-           framepos_t pos;
+           samplepos_t pos;
            int target_tracks;
            int target_regions;
            boost::shared_ptr<ARDOUR::Track> track;
@@ -1441,7 +1410,7 @@ private:
        };
 
        EditorImportStatus import_status;
-       static void *_import_thread (void *);
+       static void*_import_thread (void*);
        void* import_thread ();
        void finish_import ();
 
@@ -1449,7 +1418,7 @@ private:
 
        void import_audio (bool as_tracks);
        void do_import (std::vector<std::string> paths, bool split, bool as_tracks);
-       void import_smf_tempo_map (Evoral::SMF const &, framepos_t pos);
+       void import_smf_tempo_map (Evoral::SMF const &, samplepos_t pos);
        void move_to_start ();
        void move_to_end ();
        void center_playhead ();
@@ -1479,7 +1448,7 @@ private:
        void set_selection_from_loop ();
        void set_selection_from_region ();
 
-       void add_location_mark (framepos_t where);
+       void add_location_mark (samplepos_t where);
        void add_location_from_region ();
        void add_locations_from_region ();
        void add_location_from_selection ();
@@ -1494,8 +1463,8 @@ private:
 
        void set_loop_from_region (bool play);
 
-       void set_loop_range (framepos_t start, framepos_t end, std::string cmd);
-       void set_punch_range (framepos_t start, framepos_t end, std::string cmd);
+       void set_loop_range (samplepos_t start, samplepos_t end, std::string cmd);
+       void set_punch_range (samplepos_t start, samplepos_t end, std::string cmd);
 
        void toggle_location_at_playhead_cursor ();
        void add_location_from_playhead_cursor ();
@@ -1510,26 +1479,23 @@ private:
        int scrubbing_direction;
        int scrub_reversals;
        int scrub_reverse_distance;
-       void scrub (framepos_t, double);
+       void scrub (samplepos_t, double);
 
        void set_punch_start_from_edit_point ();
        void set_punch_end_from_edit_point ();
        void set_loop_start_from_edit_point ();
        void set_loop_end_from_edit_point ();
 
-       void keyboard_selection_begin ( Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE );
+       void keyboard_selection_begin (Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE);
        void keyboard_selection_finish (bool add, Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE);
        bool have_pending_keyboard_selection;
-       framepos_t pending_keyboard_selection_start;
+       samplepos_t pending_keyboard_selection_start;
 
        void move_range_selection_start_or_end_to_region_boundary (bool, bool);
 
-       Editing::SnapType _snap_type;
+       Editing::GridType _grid_type;
        Editing::SnapMode _snap_mode;
 
-       /// Snap threshold in pixels
-       double snap_threshold;
-
        bool ignore_gui_changes;
 
        DragManager* _drags;
@@ -1579,10 +1545,10 @@ private:
 
        void region_view_item_click (AudioRegionView&, GdkEventButton*);
 
-       bool can_remove_control_point (ArdourCanvas::Item *);
-       void remove_control_point (ArdourCanvas::Item *);
+       bool can_remove_control_point (ArdourCanvas::Item*);
+       void remove_control_point (ArdourCanvas::Item*);
 
-       void mouse_brush_insert_region (RegionView*, framepos_t pos);
+       void mouse_brush_insert_region (RegionView*, samplepos_t pos);
 
        /* Canvas event handlers */
 
@@ -1610,9 +1576,9 @@ private:
        bool canvas_tempo_curve_event (GdkEvent* event,ArdourCanvas::Item*, TempoCurve*);
        bool canvas_meter_marker_event (GdkEvent* event,ArdourCanvas::Item*, MeterMarker*);
        bool canvas_automation_track_event(GdkEvent* event, ArdourCanvas::Item*, AutomationTimeAxisView*);
-       bool canvas_note_event (GdkEvent* event, ArdourCanvas::Item *);
+       bool canvas_note_event (GdkEvent* event, ArdourCanvas::Item*);
 
-       bool canvas_ruler_event (GdkEvent* event, ArdourCanvas::Item *, ItemType);
+       bool canvas_ruler_event (GdkEvent* event, ArdourCanvas::Item*, ItemType);
        bool canvas_tempo_bar_event (GdkEvent* event, ArdourCanvas::Item*);
        bool canvas_meter_bar_event (GdkEvent* event, ArdourCanvas::Item*);
        bool canvas_marker_bar_event (GdkEvent* event, ArdourCanvas::Item*);
@@ -1627,7 +1593,7 @@ private:
        void toggle_video_timeline_locked ();
        void set_video_timeline_locked (const bool);
        void queue_visual_videotimeline_update ();
-       void embed_audio_from_video (std::string, framepos_t n = 0, bool lock_position_to_video = true);
+       void embed_audio_from_video (std::string, samplepos_t n = 0, bool lock_position_to_video = true);
 
        bool track_selection_change_without_scroll () const {
                return _track_selection_change_without_scroll;
@@ -1654,8 +1620,8 @@ private:
        void track_canvas_viewport_allocate (Gtk::Allocation alloc);
        void track_canvas_viewport_size_allocated ();
        bool track_canvas_drag_motion (Glib::RefPtr<Gdk::DragContext> const &, int, int, guint);
-       bool track_canvas_key_press (GdkEventKey *);
-       bool track_canvas_key_release (GdkEventKey *);
+       bool track_canvas_key_press (GdkEventKey*);
+       bool track_canvas_key_release (GdkEventKey*);
 
        void set_playhead_cursor ();
 
@@ -1665,7 +1631,6 @@ private:
 
        /* display control */
 
-       bool _show_measures;
        /// true if the editor should follow the playhead, otherwise false
        bool _follow_playhead;
        /// true if we scroll the tracks rather than the playhead
@@ -1673,17 +1638,17 @@ private:
        /// true if we are in fullscreen mode
        bool _maximised;
 
-       TempoLines* tempo_lines;
+       std::vector<ArdourCanvas::Ruler::Mark> grid_marks;
+       GridLines* grid_lines;
 
        ArdourCanvas::Container* global_rect_group;
        ArdourCanvas::Container* time_line_group;
 
-       void hide_measures ();
-       void draw_measures (std::vector<ARDOUR::TempoMap::BBTPoint>&);
+       void hide_grid_lines ();
+       void maybe_draw_grid_lines ();
 
        void new_tempo_section ();
 
-
        void remove_tempo_marker (ArdourCanvas::Item*);
        void remove_meter_marker (ArdourCanvas::Item*);
        gint real_remove_tempo_marker (ARDOUR::TempoSection*);
@@ -1701,7 +1666,7 @@ private:
        void marker_menu_edit ();
        void marker_menu_remove ();
        void marker_menu_rename ();
-       void rename_marker (ArdourMarker *marker);
+       void rename_marker (ArdourMarkermarker);
        void toggle_marker_lock_style ();
        void toggle_tempo_clamped ();
        void toggle_tempo_type ();
@@ -1709,6 +1674,7 @@ private:
        void toggle_marker_menu_lock ();
        void toggle_marker_menu_glue ();
        void marker_menu_hide ();
+       void marker_menu_set_origin ();
        void marker_menu_loop_range ();
        void marker_menu_select_all_selectables_using_range ();
        void marker_menu_select_using_range ();
@@ -1728,20 +1694,19 @@ private:
        void marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
        void tempo_or_meter_marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
        void new_transport_marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
-       void build_range_marker_menu (ARDOUR::Location *, bool, bool);
-       void build_marker_menu (ARDOUR::Location *);
-       void build_tempo_marker_menu (TempoMarker *, bool);
-       void build_meter_marker_menu (MeterMarker *, bool);
+       void build_range_marker_menu (ARDOUR::Location*, bool, bool);
+       void build_marker_menu (ARDOUR::Location*);
+       void build_tempo_marker_menu (TempoMarker*, bool);
+       void build_meter_marker_menu (MeterMarker*, bool);
        void build_new_transport_marker_menu ();
+
        void dynamic_cast_marker_object (void*, MeterMarker**, TempoMarker**) const;
 
        Gtk::Menu* tempo_marker_menu;
        Gtk::Menu* meter_marker_menu;
        Gtk::Menu* marker_menu;
        Gtk::Menu* range_marker_menu;
-       Gtk::Menu* transport_marker_menu;
        Gtk::Menu* new_transport_marker_menu;
-       Gtk::Menu* cd_marker_menu;
        ArdourCanvas::Item* marker_menu_item;
 
        typedef std::list<ArdourMarker*> Marks;
@@ -1753,11 +1718,12 @@ private:
        void remove_metric_marks ();
        void draw_metric_marks (const ARDOUR::Metrics& metrics);
 
-       void compute_current_bbt_points (std::vector<ARDOUR::TempoMap::BBTPoint>& grid, framepos_t left, framepos_t right);
+       void compute_current_bbt_points (std::vector<ARDOUR::TempoMap::BBTPoint>& grid, samplepos_t left, samplepos_t right);
 
        void tempo_map_changed (const PBD::PropertyChange&);
        void tempometric_position_changed (const PBD::PropertyChange&);
-       void redisplay_tempo (bool immediate_redraw);
+
+       void redisplay_grid (bool immediate_redraw);
 
        uint32_t bbt_beat_subdivision;
 
@@ -1805,6 +1771,8 @@ private:
 
        bool                     mouse_select_button_release (GdkEventButton*);
 
+       Glib::RefPtr<Gtk::Action> get_mouse_mode_action (Editing::MouseMode m) const;
+
        Gtk::VBox                automation_box;
        Gtk::Button              automation_mode_button;
 
@@ -1817,22 +1785,28 @@ private:
        void set_edit_mode (ARDOUR::EditMode);
        void cycle_edit_mode ();
 
-       ArdourWidgets::ArdourDropdown snap_type_selector;
-       void build_snap_type_menu ();
+       ArdourWidgets::ArdourDropdown grid_type_selector;
+       void build_grid_type_menu ();
+
+       ArdourWidgets::ArdourButton snap_mode_button;
+       bool snap_mode_button_clicked (GdkEventButton*);
 
-       ArdourWidgets::ArdourDropdown snap_mode_selector;
-       void build_snap_mode_menu ();
        Gtk::HBox snap_box;
 
-       std::vector<std::string> snap_type_strings;
+       Gtk::HBox ebox_hpacker;
+       Gtk::VBox ebox_vpacker;
+
+       Gtk::HBox _box;
+
+       std::vector<std::string> grid_type_strings;
        std::vector<std::string> snap_mode_strings;
 
-       void snap_type_selection_done (Editing::SnapType);
+       void grid_type_selection_done (Editing::GridType);
        void snap_mode_selection_done (Editing::SnapMode);
        void snap_mode_chosen (Editing::SnapMode);
-       void snap_type_chosen (Editing::SnapType);
+       void grid_type_chosen (Editing::GridType);
 
-       Glib::RefPtr<Gtk::RadioAction> snap_type_action (Editing::SnapType);
+       Glib::RefPtr<Gtk::RadioAction> grid_type_action (Editing::GridType);
        Glib::RefPtr<Gtk::RadioAction> snap_mode_action (Editing::SnapMode);
 
        //zoom focus meu stuff
@@ -1865,6 +1839,7 @@ private:
        SelectionMemento* _selection_memento;
 
        void time_selection_changed ();
+       void track_selection_changed ();
        void update_time_selection_display ();
        void presentation_info_changed (PBD::PropertyChange const &);
        void region_selection_changed ();
@@ -1882,13 +1857,14 @@ private:
        void marker_selection_changed ();
 
        bool _track_selection_change_without_scroll;
+       bool _editor_track_selection_change_without_scroll;
 
        void cancel_selection ();
        void cancel_time_selection ();
 
        bool get_smart_mode() const;
 
-       bool audio_region_selection_covers (framepos_t where);
+       bool audio_region_selection_covers (samplepos_t where);
 
        /* transport range select process */
 
@@ -1912,7 +1888,7 @@ private:
 
        /* object rubberband select process */
 
-       void select_all_within (framepos_t, framepos_t, double, double, TrackViewList const &, Selection::Operation, bool);
+       void select_all_within (samplepos_t, samplepos_t, double, double, TrackViewList const &, Selection::Operation, bool);
 
        ArdourCanvas::Rectangle* rubberband_rect;
 
@@ -1946,7 +1922,7 @@ private:
        void stop_canvas_autoscroll ();
 
        /* trimming */
-       void point_trim (GdkEvent *, framepos_t);
+       void point_trim (GdkEvent*, samplepos_t);
 
        void trim_region_front();
        void trim_region_back();
@@ -2021,8 +1997,8 @@ private:
        uint32_t selection_op_cmd_depth;
        uint32_t selection_op_history_it;
 
-       std::list<XMLNode *> selection_op_history; /* used in *_reversible_selection_op */
-       std::list<XMLNode *> before; /* used in *_reversible_command */
+       std::list<XMLNode*> selection_op_history; /* used in *_reversible_selection_op */
+       std::list<XMLNode*> before; /* used in *_reversible_command */
 
        void update_title ();
        void update_title_s (const std::string & snapshot_name);
@@ -2046,22 +2022,22 @@ private:
        void duplicate_range (bool with_dialog);
        void duplicate_regions (float times);
 
-       /** computes the timeline frame (sample) of an event whose coordinates
+       /** computes the timeline sample (sample) of an event whose coordinates
         * are in canvas units (pixels, scroll offset included).
         */
-       framepos_t canvas_event_sample (GdkEvent const *, double* px = 0, double* py = 0) const;
+       samplepos_t canvas_event_sample (GdkEvent const*, double* px = 0, double* py = 0) const;
 
-       /** computes the timeline frame (sample) of an event whose coordinates
+       /** computes the timeline sample (sample) of an event whose coordinates
         * are in window units (pixels, no scroll offset).
         */
-       framepos_t window_event_sample (GdkEvent const *, double* px = 0, double* py = 0) const;
+       samplepos_t window_event_sample (GdkEvent const*, double* px = 0, double* py = 0) const;
 
        /* returns false if mouse pointer is not in track or marker canvas
         */
-       bool mouse_frame (framepos_t&, bool& in_track_canvas) const;
+       bool mouse_sample (samplepos_t&, bool& in_track_canvas) const;
 
        TimeFXDialog* current_timefx;
-       static void* timefx_thread (void *arg);
+       static void* timefx_thread (voidarg);
        void do_timefx ();
 
        int time_stretch (RegionSelection&, float fraction);
@@ -2165,10 +2141,10 @@ private:
 
        void selected_marker_moved (ARDOUR::Location*);
 
-       bool get_edit_op_range (framepos_t& start, framepos_t& end) const;
+       bool get_edit_op_range (samplepos_t& start, samplepos_t& end) const;
 
-       void get_regions_at (RegionSelection&, framepos_t where, const TrackViewList& ts) const;
-       void get_regions_after (RegionSelection&, framepos_t where, const TrackViewList& ts) const;
+       void get_regions_at (RegionSelection&, samplepos_t where, const TrackViewList& ts) const;
+       void get_regions_after (RegionSelection&, samplepos_t where, const TrackViewList& ts) const;
 
        RegionSelection get_regions_from_selection_and_edit_point (Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE,
                                                                   bool use_context_click = false,
@@ -2182,14 +2158,33 @@ private:
        void select_next_stripable (bool routes_only = true);
        void select_prev_stripable (bool routes_only = true);
 
-       void snap_to_internal (ARDOUR::MusicFrame& first,
-                              ARDOUR::RoundMode   direction = ARDOUR::RoundNearest,
-                              bool                for_mark  = false,
-                              bool                ensure_snap = false);
+       ARDOUR::MusicSample snap_to_minsec (ARDOUR::MusicSample start,
+                                           ARDOUR::RoundMode   direction,
+                                           ARDOUR::SnapPref    gpref);
+
+       ARDOUR::MusicSample snap_to_cd_frames (ARDOUR::MusicSample start,
+                                              ARDOUR::RoundMode   direction,
+                                              ARDOUR::SnapPref    gpref);
+
+       ARDOUR::MusicSample snap_to_bbt (ARDOUR::MusicSample start,
+                                        ARDOUR::RoundMode   direction,
+                                        ARDOUR::SnapPref    gpref);
+
+       ARDOUR::MusicSample snap_to_timecode (ARDOUR::MusicSample start,
+                                             ARDOUR::RoundMode   direction,
+                                             ARDOUR::SnapPref    gpref);
 
-       void timecode_snap_to_internal (ARDOUR::MusicFrame& first,
-                                       ARDOUR::RoundMode   direction = ARDOUR::RoundNearest,
-                                       bool                for_mark  = false);
+       ARDOUR::MusicSample snap_to_grid (ARDOUR::MusicSample start,
+                                         ARDOUR::RoundMode   direction,
+                                         ARDOUR::SnapPref    gpref);
+
+       void snap_to_internal (ARDOUR::MusicSample& first,
+                              ARDOUR::RoundMode    direction = ARDOUR::RoundNearest,
+                              ARDOUR::SnapPref     gpref = ARDOUR::SnapToAny_Visual,
+                              bool                 ensure_snap = false);
+
+       samplepos_t snap_to_marker (samplepos_t       presnap,
+                                   ARDOUR::RoundMode direction = ARDOUR::RoundNearest);
 
        RhythmFerret* rhythm_ferret;
 
@@ -2224,11 +2219,11 @@ private:
        Gtk::HBox _summary_hbox;
        EditorSummary* _summary;
 
-       void region_view_added (RegionView *);
+       void region_view_added (RegionView*);
        void region_view_removed ();
 
        EditorGroupTabs* _group_tabs;
-       void fit_route_group (ARDOUR::RouteGroup *);
+       void fit_route_group (ARDOUR::RouteGroup*);
 
        void step_edit_status_change (bool);
        void start_step_editing ();
@@ -2291,14 +2286,12 @@ private:
 
        /* private helper functions to help with registering region actions */
 
-       Glib::RefPtr<Gtk::Action> register_region_action (Glib::RefPtr<Gtk::ActionGroup> group, Editing::RegionActionTarget, char const * name, char const * label, sigc::slot<void> slot);
-       void register_toggle_region_action (Glib::RefPtr<Gtk::ActionGroup> group, Editing::RegionActionTarget, char const * name, char const * label, sigc::slot<void> slot);
-
-       Glib::RefPtr<Gtk::Action> reg_sens (Glib::RefPtr<Gtk::ActionGroup> group, char const * name, char const * label, sigc::slot<void> slot);
-       void toggle_reg_sens (Glib::RefPtr<Gtk::ActionGroup> group, char const * name, char const * label, sigc::slot<void> slot);
-       void radio_reg_sens (Glib::RefPtr<Gtk::ActionGroup> action_group, Gtk::RadioAction::Group& radio_group, char const * name, char const * label, sigc::slot<void> slot);
+       Glib::RefPtr<Gtk::Action> register_region_action (Glib::RefPtr<Gtk::ActionGroup> group, Editing::RegionActionTarget, char const* name, char const* label, sigc::slot<void> slot);
+       void register_toggle_region_action (Glib::RefPtr<Gtk::ActionGroup> group, Editing::RegionActionTarget, char const* name, char const* label, sigc::slot<void> slot);
 
-       Gtkmm2ext::ActionMap myactions;
+       Glib::RefPtr<Gtk::Action> reg_sens (Glib::RefPtr<Gtk::ActionGroup> group, char const* name, char const* label, sigc::slot<void> slot);
+       void toggle_reg_sens (Glib::RefPtr<Gtk::ActionGroup> group, char const* name, char const* label, sigc::slot<void> slot);
+       void radio_reg_sens (Glib::RefPtr<Gtk::ActionGroup> action_group, Gtk::RadioAction::Group& radio_group, char const* name, char const* label, sigc::slot<void> slot);
 
        friend class Drag;
        friend class RegionCutDrag;