Speed up track deletion when Editor-Mixer is visible
[ardour.git] / gtk2_ardour / editor_ops.cc
index 50b7c81b44128f4a9de9c4f0e18f08f6dbf8c8cf..25d1c7376667e32c7051281f5dd16ab042c8c52b 100644 (file)
@@ -42,6 +42,7 @@
 
 #include "ardour/audio_track.h"
 #include "ardour/audioregion.h"
+#include "ardour/boost_debug.h"
 #include "ardour/dB.h"
 #include "ardour/location.h"
 #include "ardour/midi_region.h"
 #include "ardour/session_playlists.h"
 #include "ardour/strip_silence.h"
 #include "ardour/transient_detector.h"
+#include "ardour/transpose.h"
 
 #include "canvas/canvas.h"
 
 #include "actions.h"
-#include "ardour_ui.h"
 #include "audio_region_view.h"
 #include "audio_streamview.h"
 #include "audio_time_axis.h"
@@ -81,6 +82,7 @@
 #include "item_counts.h"
 #include "keyboard.h"
 #include "midi_region_view.h"
+#include "mixer_ui.h"
 #include "mixer_strip.h"
 #include "mouse_cursors.h"
 #include "normalize_dialog.h"
 #include "streamview.h"
 #include "strip_silence_dialog.h"
 #include "time_axis_view.h"
+#include "timers.h"
 #include "transpose_dialog.h"
 #include "transform_dialog.h"
+#include "ui_config.h"
 
-#include "i18n.h"
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace ARDOUR;
@@ -116,10 +120,17 @@ using Gtkmm2ext::Keyboard;
 void
 Editor::undo (uint32_t n)
 {
+       if (_session && _session->actively_recording()) {
+               /* no undo allowed while recording. Session will check also,
+                  but we don't even want to get to that.
+               */
+               return;
+       }
+
        if (_drags->active ()) {
                _drags->abort ();
        }
-       
+
        if (_session) {
                _session->undo (n);
                if (_session->undo_depth() == 0) {
@@ -133,12 +144,19 @@ Editor::undo (uint32_t n)
 void
 Editor::redo (uint32_t n)
 {
+       if (_session && _session->actively_recording()) {
+               /* no redo allowed while recording. Session will check also,
+                  but we don't even want to get to that.
+               */
+               return;
+       }
+
        if (_drags->active ()) {
                _drags->abort ();
        }
-       
+
        if (_session) {
-               _session->redo (n);
+       _session->redo (n);
                if (_session->redo_depth() == 0) {
                        redo_action->set_sensitive(false);
                }
@@ -148,7 +166,8 @@ Editor::redo (uint32_t n)
 }
 
 void
-Editor::split_regions_at (framepos_t where, RegionSelection& regions)
+Editor::split_regions_at (framepos_t where, RegionSelection& regions, const int32_t sub_num,
+                          bool snap_frame)
 {
        bool frozen = false;
 
@@ -174,10 +193,14 @@ Editor::split_regions_at (framepos_t where, RegionSelection& regions)
                case SnapToRegionEnd:
                        break;
                default:
-                       snap_to (where);
+                       if (snap_frame) {
+                               snap_to (where);
+                       }
                }
        } else {
-               snap_to (where);
+               if (snap_frame) {
+                       snap_to (where);
+               }
 
                frozen = true;
                EditorFreeze(); /* Emit Signal */
@@ -223,7 +246,7 @@ Editor::split_regions_at (framepos_t where, RegionSelection& regions)
 
                if (pl) {
                        pl->clear_changes ();
-                       pl->split_region ((*a)->region(), where);
+                       pl->split_region ((*a)->region(), where, sub_num);
                        _session->add_command (new StatefulDiffCommand (pl));
                }
 
@@ -237,7 +260,7 @@ Editor::split_regions_at (framepos_t where, RegionSelection& regions)
        for (list<RouteTimeAxisView*>::iterator i = used_trackviews.begin(); i != used_trackviews.end(); ++i) {
                region_added_connections.push_back ((*i)->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view)));
        }
-       
+
        while (used_playlists.size() > 0) {
                list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
                (*i)->thaw();
@@ -430,6 +453,9 @@ Editor::nudge_forward (bool next, bool force_playhead)
                                        } else {
                                                loc->set_end (max_framepos);
                                        }
+                                       if (loc->is_session_range()) {
+                                               _session->set_end_is_free (false);
+                                       }
                                }
                                if (!in_command) {
                                        begin_reversible_command (_("nudge location forward"));
@@ -521,6 +547,9 @@ Editor::nudge_backward (bool next, bool force_playhead)
                                        } else {
                                                loc->set_end (loc->length());
                                        }
+                                       if (loc->is_session_range()) {
+                                               _session->set_end_is_free (false);
+                                       }
                                }
                                if (!in_command) {
                                        begin_reversible_command (_("nudge location forward"));
@@ -657,8 +686,8 @@ Editor::sequence_regions ()
                if (in_command) {
                        commit_reversible_command ();
                }
-       } 
-} 
+       }
+}
 
 
 /* DISPLAY MOTION */
@@ -713,7 +742,7 @@ Editor::build_region_boundary_cache ()
 
        TimeAxisView *ontrack = 0;
        TrackViewList tlist;
-       
+
        if (!selection->tracks.empty()) {
                tlist = selection->tracks.filter_to_unique_playlists ();
        } else {
@@ -1487,33 +1516,33 @@ Editor::scroll_down_one_track (bool skip_child_views)
        }
 
        /* move to the track below the first one that covers the */
-       
+
        if (next != track_views.rend()) {
                ensure_time_axis_view_is_visible (**next, true);
                return true;
        }
 
        return false;
-}      
+}
 
 bool
 Editor::scroll_up_one_track (bool skip_child_views)
 {
        TrackViewList::iterator prev = track_views.end();
        double top_of_trackviews = vertical_adjustment.get_value ();
-       
+
        for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
 
                if ((*t)->hidden()) {
                        continue;
                }
 
-               /* find the trackview at the top of the trackview group 
+               /* find the trackview at the top of the trackview group
                 *
                 * Note that covers_y_position() is recursive and includes child views
                 */
                std::pair<TimeAxisView*,double> res = (*t)->covers_y_position (top_of_trackviews);
-               
+
                if (res.first) {
                        if (skip_child_views) {
                                break;
@@ -1521,7 +1550,7 @@ Editor::scroll_up_one_track (bool skip_child_views)
                        /* automation lane (one level, non-recursive)
                         *
                         * - if no automation lane exists -> move to prev tack
-                        * - if no y-axis match is found -> the current track is at the top -> move to prev track 
+                        * - if no y-axis match is found -> the current track is at the top -> move to prev track
                         *     (actually last automation lane of previous track, see below)
                         * - if first (top-most) lane is at the top -> move to this track
                         * - else move up one lane
@@ -1562,7 +1591,7 @@ Editor::scroll_up_one_track (bool skip_child_views)
 
                prev = t;
        }
-       
+
        if (prev != track_views.end()) {
                // move to bottom-most automation-lane of the previous track
                TimeAxisView::Children kids = (*prev)->get_child_list();
@@ -1587,6 +1616,53 @@ Editor::scroll_up_one_track (bool skip_child_views)
        return false;
 }
 
+void
+Editor::scroll_left_step ()
+{
+       framepos_t xdelta = (current_page_samples() / 8);
+
+       if (leftmost_frame > xdelta) {
+               reset_x_origin (leftmost_frame - xdelta);
+       } else {
+               reset_x_origin (0);
+       }
+}
+
+
+void
+Editor::scroll_right_step ()
+{
+       framepos_t xdelta = (current_page_samples() / 8);
+
+       if (max_framepos - xdelta > leftmost_frame) {
+               reset_x_origin (leftmost_frame + xdelta);
+       } else {
+               reset_x_origin (max_framepos - current_page_samples());
+       }
+}
+
+void
+Editor::scroll_left_half_page ()
+{
+       framepos_t xdelta = (current_page_samples() / 2);
+       if (leftmost_frame > xdelta) {
+               reset_x_origin (leftmost_frame - xdelta);
+       } else {
+               reset_x_origin (0);
+       }
+}
+
+void
+Editor::scroll_right_half_page ()
+{
+       framepos_t xdelta = (current_page_samples() / 2);
+       if (max_framepos - xdelta > leftmost_frame) {
+               reset_x_origin (leftmost_frame + xdelta);
+       } else {
+               reset_x_origin (max_framepos - current_page_samples());
+       }
+}
+
 /* ZOOM */
 
 void
@@ -1601,7 +1677,7 @@ Editor::tav_zoom_step (bool coarser)
        } else {
                ts = &selection->tracks;
        }
-       
+
        for (TrackViewList::iterator i = ts->begin(); i != ts->end(); ++i) {
                TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
                        tv->step_height (coarser);
@@ -1620,7 +1696,7 @@ Editor::tav_zoom_smooth (bool coarser, bool force_all)
        } else {
                ts = &selection->tracks;
        }
-       
+
        for (TrackViewList::iterator i = ts->begin(); i != ts->end(); ++i) {
                TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
                uint32_t h = tv->current_height ();
@@ -1638,18 +1714,44 @@ Editor::tav_zoom_smooth (bool coarser, bool force_all)
        }
 }
 
+void
+Editor::temporal_zoom_step_mouse_focus_scale (bool zoom_out, double scale)
+{
+       Editing::ZoomFocus temp_focus = zoom_focus;
+       zoom_focus = Editing::ZoomFocusMouse;
+       temporal_zoom_step_scale (zoom_out, scale);
+       zoom_focus = temp_focus;
+}
+
+void
+Editor::temporal_zoom_step_mouse_focus (bool zoom_out)
+{
+       temporal_zoom_step_mouse_focus_scale (zoom_out, 2.0);
+}
+
+void
+Editor::temporal_zoom_step (bool zoom_out)
+{
+       temporal_zoom_step_scale (zoom_out, 2.0);
+}
 
 void
-Editor::temporal_zoom_step (bool coarser)
+Editor::temporal_zoom_step_scale (bool zoom_out, double scale)
 {
-       ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
+       ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, zoom_out, scale)
 
        framecnt_t nspp = samples_per_pixel;
 
-       if (coarser) {
-               nspp *= 2;
+       if (zoom_out) {
+               nspp *= scale;
+               if (nspp == samples_per_pixel) {
+                       nspp *= 2.0;
+               }
        } else {
-               nspp /= 2;
+               nspp /= scale;
+               if (nspp == samples_per_pixel) {
+                       nspp /= 2.0;
+               }
        }
 
        temporal_zoom (nspp);
@@ -1671,6 +1773,7 @@ Editor::temporal_zoom (framecnt_t fpp)
        framepos_t leftmost_after_zoom = 0;
        framepos_t where;
        bool in_track_canvas;
+       bool use_mouse_frame = true;
        framecnt_t nfpp;
        double l;
 
@@ -1678,7 +1781,7 @@ Editor::temporal_zoom (framecnt_t fpp)
                return;
        }
 
-       // Imposing an arbitrary limit to zoom out as too much zoom out produces 
+       // Imposing an arbitrary limit to zoom out as too much zoom out produces
        // segfaults for lack of memory. If somebody decides this is not high enough I
        // believe it can be raisen to higher values but some limit must be in place.
        //
@@ -1731,18 +1834,13 @@ Editor::temporal_zoom (framecnt_t fpp)
        case ZoomFocusMouse:
                /* try to keep the mouse over the same point in the display */
 
-               if (!mouse_frame (where, in_track_canvas)) {
-                       /* use playhead instead */
-                       where = playhead_cursor->current_frame ();
-
-                       if (where < half_page_size) {
-                               leftmost_after_zoom = 0;
-                       } else {
-                               leftmost_after_zoom = where - half_page_size;
-                       }
-
-               } else {
+               if (_drags->active()) {
+                       where = _drags->current_pointer_frame ();
+               } else if (!mouse_frame (where, in_track_canvas)) {
+                       use_mouse_frame = false;
+               }
 
+               if (use_mouse_frame) {
                        l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
 
                        if (l < 0) {
@@ -1752,8 +1850,16 @@ Editor::temporal_zoom (framecnt_t fpp)
                        } else {
                                leftmost_after_zoom = (framepos_t) l;
                        }
-               }
+               } else {
+                       /* use playhead instead */
+                       where = playhead_cursor->current_frame ();
 
+                       if (where < half_page_size) {
+                               leftmost_after_zoom = 0;
+                       } else {
+                               leftmost_after_zoom = where - half_page_size;
+                       }
+               }
                break;
 
        case ZoomFocusEdit:
@@ -1825,7 +1931,7 @@ Editor::temporal_zoom_region (bool both_axes)
 
        if ( !get_selection_extents(start, end) )
                return;
-       
+
        calc_extra_zoom_edges (start, end);
 
        /* if we're zooming on both axes we need to save track heights etc.
@@ -1836,7 +1942,7 @@ Editor::temporal_zoom_region (bool both_axes)
        PBD::Unwinder<bool> nsv (no_save_visual, true);
 
        temporal_zoom_by_frame (start, end);
-       
+
        if (both_axes) {
                uint32_t per_track_height = (uint32_t) floor ((_visible_canvas_height - 10.0) / tracks.size());
 
@@ -1864,12 +1970,12 @@ Editor::temporal_zoom_region (bool both_axes)
 
 
 bool
-Editor::get_selection_extents ( framepos_t &start, framepos_t &end )
+Editor::get_selection_extents (framepos_t &start, framepos_t &end) const
 {
        start = max_framepos;
        end = 0;
        bool ret = true;
-       
+
        //ToDo:  if notes are selected, set extents to that selection
 
        //ToDo:  if control points are selected, set extents to that selection
@@ -1891,15 +1997,15 @@ Editor::get_selection_extents ( framepos_t &start, framepos_t &end )
        } else if (!selection->time.empty()) {
                start = selection->time.start();
                end = selection->time.end_frame();
-       } else 
+       } else
                ret = false;  //no selection found
 
        //range check
        if ((start == 0 && end == 0) || end < start) {
                ret = false;
        }
-       
-       return ret;     
+
+       return ret;
 }
 
 
@@ -1924,7 +2030,7 @@ Editor::temporal_zoom_selection (bool both_axes)
                        calc_extra_zoom_edges(start, end);
                        temporal_zoom_by_frame (start, end);
                }
-               
+
                if (both_axes)
                        fit_selection();
        }
@@ -1974,7 +2080,7 @@ Editor::temporal_zoom_by_frame (framepos_t start, framepos_t end)
        framepos_t range = end - start;
 
        const framecnt_t new_fpp = (framecnt_t) ceil ((double) range / (double) _visible_canvas_width);
-       
+
        framepos_t new_page = range;
        framepos_t middle = (framepos_t) floor ((double) start + ((double) range / 2.0f));
        framepos_t new_leftmost = (framepos_t) floor ((double) middle - ((double) new_page / 2.0f));
@@ -2027,7 +2133,7 @@ Editor::temporal_zoom_to_frame (bool coarser, framepos_t frame)
        /* zoom focus is automatically taken as @param frame when this
           method is used.
        */
-       
+
        framepos_t new_leftmost = frame - (framepos_t)range_before;
 
        if (new_leftmost > frame) {
@@ -2045,7 +2151,7 @@ Editor::temporal_zoom_to_frame (bool coarser, framepos_t frame)
 bool
 Editor::choose_new_marker_name(string &name) {
 
-       if (!ARDOUR_UI::config()->get_name_new_markers()) {
+       if (!UIConfiguration::instance().get_name_new_markers()) {
                /* don't prompt user for a new name */
                return true;
        }
@@ -2098,12 +2204,12 @@ Editor::add_location_from_selection ()
        Location *location = new Location (*_session, start, end, rangename, Location::IsRangeMarker);
 
        begin_reversible_command (_("add marker"));
-       
+
        XMLNode &before = _session->locations()->get_state();
        _session->locations()->add (location, true);
        XMLNode &after = _session->locations()->get_state();
        _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
-       
+
        commit_reversible_command ();
 }
 
@@ -2120,12 +2226,12 @@ Editor::add_location_mark (framepos_t where)
        }
        Location *location = new Location (*_session, where, where, markername, Location::IsMark);
        begin_reversible_command (_("add marker"));
-       
+
        XMLNode &before = _session->locations()->get_state();
        _session->locations()->add (location, true);
        XMLNode &after = _session->locations()->get_state();
        _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
-       
+
        commit_reversible_command ();
 }
 
@@ -2134,7 +2240,7 @@ Editor::set_session_start_from_playhead ()
 {
        if (!_session)
                return;
-       
+
        Location* loc;
        if ((loc = _session->locations()->session_range_location()) == 0) {  //should never happen
                _session->set_session_extents ( _session->audible_frame(), _session->audible_frame() );
@@ -2146,7 +2252,7 @@ Editor::set_session_start_from_playhead ()
                XMLNode &after = loc->get_state();
 
                begin_reversible_command (_("Set session start"));
-               
+
                _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 
                commit_reversible_command ();
@@ -2158,7 +2264,7 @@ Editor::set_session_end_from_playhead ()
 {
        if (!_session)
                return;
-       
+
        Location* loc;
        if ((loc = _session->locations()->session_range_location()) == 0) {  //should never happen
                _session->set_session_extents ( _session->audible_frame(), _session->audible_frame() );
@@ -2175,6 +2281,18 @@ Editor::set_session_end_from_playhead ()
 
                commit_reversible_command ();
        }
+
+       _session->set_end_is_free (false);
+}
+
+
+void
+Editor::toggle_location_at_playhead_cursor ()
+{
+       if (!do_remove_location_at_playhead_cursor())
+       {
+               add_location_from_playhead_cursor();
+       }
 }
 
 void
@@ -2183,13 +2301,13 @@ Editor::add_location_from_playhead_cursor ()
        add_location_mark (_session->audible_frame());
 }
 
-void
-Editor::remove_location_at_playhead_cursor ()
+bool
+Editor::do_remove_location_at_playhead_cursor ()
 {
+       bool removed = false;
        if (_session) {
                //set up for undo
                XMLNode &before = _session->locations()->get_state();
-               bool removed = false;
 
                //find location(s) at this time
                Locations::LocationList locs;
@@ -2200,7 +2318,7 @@ Editor::remove_location_at_playhead_cursor ()
                                removed = true;
                        }
                }
-               
+
                //store undo
                if (removed) {
                        begin_reversible_command (_("remove marker"));
@@ -2209,6 +2327,13 @@ Editor::remove_location_at_playhead_cursor ()
                        commit_reversible_command ();
                }
        }
+       return removed;
+}
+
+void
+Editor::remove_location_at_playhead_cursor ()
+{
+       do_remove_location_at_playhead_cursor ();
 }
 
 /** Add a range marker around each selected region */
@@ -2221,7 +2346,7 @@ Editor::add_locations_from_region ()
                return;
        }
        bool commit = false;
-       
+
        XMLNode &before = _session->locations()->get_state();
 
        for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
@@ -2292,7 +2417,7 @@ Editor::jump_forward_to_mark ()
        if (pos < 0) {
                return;
        }
-       
+
        _session->request_locate (pos, _session->transport_rolling());
 }
 
@@ -2332,12 +2457,12 @@ Editor::clear_markers ()
 {
        if (_session) {
                begin_reversible_command (_("clear markers"));
-               
+
                XMLNode &before = _session->locations()->get_state();
                _session->locations()->clear_markers ();
                XMLNode &after = _session->locations()->get_state();
                _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
-               
+
                commit_reversible_command ();
        }
 }
@@ -2347,14 +2472,14 @@ Editor::clear_ranges ()
 {
        if (_session) {
                begin_reversible_command (_("clear ranges"));
-               
+
                XMLNode &before = _session->locations()->get_state();
 
                _session->locations()->clear_ranges ();
 
                XMLNode &after = _session->locations()->get_state();
                _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
-               
+
                commit_reversible_command ();
        }
 }
@@ -2363,12 +2488,12 @@ void
 Editor::clear_locations ()
 {
        begin_reversible_command (_("clear locations"));
-       
+
        XMLNode &before = _session->locations()->get_state();
        _session->locations()->clear ();
        XMLNode &after = _session->locations()->get_state();
        _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
-       
+
        commit_reversible_command ();
 }
 
@@ -2516,7 +2641,7 @@ Editor::play_from_edit_point_and_return ()
 void
 Editor::play_selection ()
 {
-       framepos_t start, end;
+       framepos_t start, end;
        if (!get_selection_extents ( start, end))
                return;
 
@@ -2530,25 +2655,25 @@ Editor::play_selection ()
 framepos_t
 Editor::get_preroll ()
 {
-       return 1.0 /*Config->get_edit_preroll_seconds()*/ * _session->frame_rate();
+       return Config->get_preroll_seconds() * _session->frame_rate();
 }
 
 
 void
 Editor::maybe_locate_with_edit_preroll ( framepos_t location )
 {
-       if ( _session->transport_rolling() || !ARDOUR_UI::config()->get_follow_edits() || _ignore_follow_edits )
+       if ( _session->transport_rolling() || !UIConfiguration::instance().get_follow_edits() || _ignore_follow_edits || _session->config.get_external_sync() )
                return;
 
        location -= get_preroll();
-       
+
        //don't try to locate before the beginning of time
-       if ( location < 0 ) 
+       if ( location < 0 )
                location = 0;
-               
+
        //if follow_playhead is on, keep the playhead on the screen
        if ( _follow_playhead )
-               if ( location < leftmost_frame ) 
+               if ( location < leftmost_frame )
                        location = leftmost_frame;
 
        _session->request_locate( location );
@@ -2559,16 +2684,16 @@ Editor::play_with_preroll ()
 {
        {
                framepos_t preroll = get_preroll();
-               
+
                framepos_t start, end;
                if (!get_selection_extents ( start, end))
                        return;
 
                if (start > preroll)
                        start = start - preroll;
-               
+
                end = end + preroll;  //"post-roll"
-               
+
                AudioRange ar (start, end, 0);
                list<AudioRange> lar;
                lar.push_back (ar);
@@ -2629,7 +2754,7 @@ Editor::do_layer_operation (LayerOperation op)
                        begin_reversible_command (_("raise region to top"));
                }
                break;
-               
+
        case Lower:
                if (multiple) {
                        begin_reversible_command (_("lower regions"));
@@ -2637,7 +2762,7 @@ Editor::do_layer_operation (LayerOperation op)
                        begin_reversible_command (_("lower region"));
                }
                break;
-               
+
        case LowerToBottom:
                if (multiple) {
                        begin_reversible_command (_("lower regions to bottom"));
@@ -2651,7 +2776,7 @@ Editor::do_layer_operation (LayerOperation op)
        for (set<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
                (*i)->clear_owned_changes ();
        }
-       
+
        for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
                boost::shared_ptr<Region> r = (*i)->region ();
                switch (op) {
@@ -2674,7 +2799,7 @@ Editor::do_layer_operation (LayerOperation op)
                (*i)->rdiff (cmds);
                _session->add_commands (cmds);
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -2725,7 +2850,7 @@ Editor::rename_region ()
                return;
        }
 
-       ArdourDialog d (*this, _("Rename Region"), true, false);
+       ArdourDialog d (_("Rename Region"), true, false);
        Entry entry;
        Label label (_("New name:"));
        HBox hbox;
@@ -2767,25 +2892,6 @@ Editor::rename_region ()
        }
 }
 
-void
-Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
-{
-       if (_session->is_auditioning()) {
-               _session->cancel_audition ();
-       }
-
-       // note: some potential for creativity here, because region doesn't
-       // have to belong to the playlist that Route is handling
-
-       // bool was_soloed = route.soloed();
-
-       route.set_solo (true, this);
-
-       _session->request_bounded_roll (region->position(), region->position() + region->length());
-
-       /* XXX how to unset the solo state ? */
-}
-
 /** Start an audition of the first selected region */
 void
 Editor::play_edit_range ()
@@ -3004,62 +3110,63 @@ Editor::separate_regions_between (const TimeSelection& ts)
 
        for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
 
-               RouteTimeAxisView* rtv;
+               RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> ((*i));
 
-               if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
-
-                       if (rtv->is_track()) {
+               if (!rtv) {
+                       continue;
+               }
 
-                               /* no edits to destructive tracks */
+               if (!rtv->is_track()) {
+                       continue;
+               }
 
-                               if (rtv->track()->destructive()) {
-                                       continue;
-                               }
+               /* no edits to destructive tracks */
 
-                               if ((playlist = rtv->playlist()) != 0) {
+               if (rtv->track()->destructive()) {
+                       continue;
+               }
 
-                                       playlist->clear_changes ();
+               if ((playlist = rtv->playlist()) != 0) {
 
-                                       /* XXX need to consider musical time selections here at some point */
+                       playlist->clear_changes ();
 
-                                       double speed = rtv->track()->speed();
+                       /* XXX need to consider musical time selections here at some point */
 
+                       double speed = rtv->track()->speed();
 
-                                       for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
+                       for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
 
-                                               sigc::connection c = rtv->view()->RegionViewAdded.connect (
-                                                               sigc::mem_fun(*this, &Editor::collect_new_region_view));
+                               sigc::connection c = rtv->view()->RegionViewAdded.connect (
+                                       sigc::mem_fun(*this, &Editor::collect_new_region_view));
 
-                                               latest_regionviews.clear ();
+                               latest_regionviews.clear ();
 
-                                               playlist->partition ((framepos_t)((*t).start * speed),
-                                                               (framepos_t)((*t).end * speed), false);
+                               playlist->partition ((framepos_t)((*t).start * speed),
+                                                    (framepos_t)((*t).end * speed), false);
 
-                                               c.disconnect ();
+                               c.disconnect ();
 
-                                               if (!latest_regionviews.empty()) {
+                               if (!latest_regionviews.empty()) {
 
-                                                       rtv->view()->foreach_regionview (sigc::bind (
-                                                                               sigc::ptr_fun (add_if_covered),
-                                                                               &(*t), &new_selection));
+                                       rtv->view()->foreach_regionview (sigc::bind (
+                                                                                sigc::ptr_fun (add_if_covered),
+                                                                                &(*t), &new_selection));
 
-                                                       if (!in_command) {
-                                                               begin_reversible_command (_("separate"));
-                                                               in_command = true;
-                                                       }
+                                       if (!in_command) {
+                                               begin_reversible_command (_("separate"));
+                                               in_command = true;
+                                       }
 
-                                                       /* pick up changes to existing regions */
+                                       /* pick up changes to existing regions */
 
-                                                       vector<Command*> cmds;
-                                                       playlist->rdiff (cmds);
-                                                       _session->add_commands (cmds);
+                                       vector<Command*> cmds;
+                                       playlist->rdiff (cmds);
+                                       _session->add_commands (cmds);
 
-                                                       /* pick up changes to the playlist itself (adds/removes)
-                                                        */
+                                       /* pick up changes to the playlist itself (adds/removes)
+                                        */
 
-                                                       _session->add_command(new StatefulDiffCommand (playlist));
-                                               }
-                                       }
+                                       _session->add_command(new StatefulDiffCommand (playlist));
                                }
                        }
                }
@@ -3179,7 +3286,7 @@ Editor::separate_under_selected_regions ()
 
                if (!playlist) {
                        // is this check necessary?
-                       continue;
+                       continue;
                }
 
                vector<PlaylistState>::iterator i;
@@ -3254,17 +3361,18 @@ Editor::crop_region_to (framepos_t start, framepos_t end)
 
        for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 
-               RouteTimeAxisView* rtv;
+               RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> ((*i));
 
-               if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
+               if (!rtv) {
+                       continue;
+               }
 
-                       boost::shared_ptr<Track> t = rtv->track();
+               boost::shared_ptr<Track> t = rtv->track();
 
-                       if (t != 0 && ! t->destructive()) {
+               if (t != 0 && ! t->destructive()) {
 
-                               if ((playlist = rtv->playlist()) != 0) {
-                                       playlists.push_back (playlist);
-                               }
+                       if ((playlist = rtv->playlist()) != 0) {
+                               playlists.push_back (playlist);
                        }
                }
        }
@@ -3273,41 +3381,48 @@ Editor::crop_region_to (framepos_t start, framepos_t end)
                return;
        }
 
-       framepos_t the_start;
-       framepos_t the_end;
-       framepos_t cnt;
+       framepos_t pos;
+       framepos_t new_start;
+       framepos_t new_end;
+       framecnt_t new_length;
        bool in_command = false;
 
        for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
 
-               boost::shared_ptr<Region> region;
+               /* Only the top regions at start and end have to be cropped */
+               boost::shared_ptr<Region> region_at_start = (*i)->top_region_at(start);
+               boost::shared_ptr<Region> region_at_end = (*i)->top_region_at(end);
 
-               the_start = start;
+               vector<boost::shared_ptr<Region> > regions;
 
-               if ((region = (*i)->top_region_at(the_start)) == 0) {
-                       continue;
+               if (region_at_start != 0) {
+                       regions.push_back (region_at_start);
+               }
+               if (region_at_end != 0) {
+                       regions.push_back (region_at_end);
                }
 
-               /* now adjust lengths to that we do the right thing
-                  if the selection extends beyond the region
-               */
+               /* now adjust lengths */
+               for (vector<boost::shared_ptr<Region> >::iterator i = regions.begin(); i != regions.end(); ++i) {
 
-               the_start = max (the_start, (framepos_t) region->position());
-               if (max_framepos - the_start < region->length()) {
-                       the_end = the_start + region->length() - 1;
-               } else {
-                       the_end = max_framepos;
-               }
-               the_end = min (end, the_end);
-               cnt = the_end - the_start + 1;
+                       pos = (*i)->position();
+                       new_start = max (start, pos);
+                       if (max_framepos - pos > (*i)->length()) {
+                               new_end = pos + (*i)->length() - 1;
+                       } else {
+                               new_end = max_framepos;
+                       }
+                       new_end = min (end, new_end);
+                       new_length = new_end - new_start + 1;
 
-               if(!in_command) {
-                       begin_reversible_command (_("trim to selection"));
-                       in_command = true;
+                       if(!in_command) {
+                               begin_reversible_command (_("trim to selection"));
+                               in_command = true;
+                       }
+                       (*i)->clear_changes ();
+                       (*i)->trim_to (new_start, new_length);
+                       _session->add_command (new StatefulDiffCommand (*i));
                }
-               region->clear_changes ();
-               region->trim_to (the_start, cnt);
-               _session->add_command (new StatefulDiffCommand (region));
        }
 
        if (in_command) {
@@ -3318,124 +3433,56 @@ Editor::crop_region_to (framepos_t start, framepos_t end)
 void
 Editor::region_fill_track ()
 {
-       RegionSelection rs = get_regions_from_selection_and_entered ();
-
-       if (!_session || rs.empty()) {
-               return;
-       }
+       boost::shared_ptr<Playlist> playlist;
+       RegionSelection regions = get_regions_from_selection_and_entered ();
+       RegionSelection foo;
 
        framepos_t const end = _session->current_end_frame ();
-       RegionSelection foo;
-       bool in_command = false;
 
-       for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
+       if (regions.empty () || regions.end_frame () + 1 >= end) {
+               return;
+       }
 
-               boost::shared_ptr<Region> region ((*i)->region());
+       framepos_t const start_frame = regions.start ();
+       framepos_t const end_frame = regions.end_frame ();
+       framecnt_t const gap = end_frame - start_frame + 1;
 
-               boost::shared_ptr<Playlist> pl = region->playlist();
+       begin_reversible_command (Operations::region_fill);
 
-               if (end <= region->last_frame()) {
-                       continue;
-               }
+       selection->clear_regions ();
 
-               double times = (double) (end - region->last_frame()) / (double) region->length();
+       for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
 
-               if (times == 0) {
-                       continue;
-               }
+               boost::shared_ptr<Region> r ((*i)->region());
 
-               if (!in_command) {
-                       begin_reversible_command (Operations::region_fill);
-                       in_command = true;
-               }
                TimeAxisView& tv = (*i)->get_time_axis_view();
                RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
                latest_regionviews.clear ();
                sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
 
-               pl->clear_changes ();
-               pl->add_region (RegionFactory::create (region, true), region->last_frame(), times);
-               _session->add_command (new StatefulDiffCommand (pl));
+               framepos_t const position = end_frame + (r->first_frame() - start_frame + 1);
+               playlist = (*i)->region()->playlist();
+               playlist->clear_changes ();
+               playlist->duplicate_until (r, position, gap, end);
+               _session->add_command(new StatefulDiffCommand (playlist));
 
                c.disconnect ();
 
                foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
        }
 
-       if (in_command) {
-               if (!foo.empty()) {
-                       selection->set (foo);
-               }
-               commit_reversible_command ();
+       if (!foo.empty()) {
+               selection->set (foo);
        }
+
+       commit_reversible_command ();
 }
 
 void
-Editor::region_fill_selection ()
+Editor::set_region_sync_position ()
 {
-       if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
-               return;
-       }
-
-       if (selection->time.empty()) {
-               return;
-       }
-
-       boost::shared_ptr<Region> region = _regions->get_single_selection ();
-       if (region == 0) {
-               return;
-       }
-
-       framepos_t start = selection->time[clicked_selection].start;
-       framepos_t end = selection->time[clicked_selection].end;
-
-       boost::shared_ptr<Playlist> playlist;
-
-       if (selection->tracks.empty()) {
-               return;
-       }
-
-       framepos_t selection_length = end - start;
-       float times = (float)selection_length / region->length();
-       bool in_command = false;
-
-       TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
-       RegionSelection foo;
-
-       for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
-
-               if ((playlist = (*i)->playlist()) == 0) {
-                       continue;
-               }
-
-               if (!in_command) {
-                       begin_reversible_command (Operations::fill_selection);
-                       in_command = true;
-               }
-               RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
-               latest_regionviews.clear ();
-               sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
-
-               playlist->clear_changes ();
-               playlist->add_region (RegionFactory::create (region, true), start, times);
-               _session->add_command (new StatefulDiffCommand (playlist));
-               c.disconnect ();
-               foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
-       }
-
-       if (in_command) {
-               if (!foo.empty()) {
-                       selection->set (foo);
-               }
-               commit_reversible_command ();
-       }
-}
-
-void
-Editor::set_region_sync_position ()
-{
-       set_sync_point (get_preferred_edit_position (), get_regions_from_selection_and_edit_point ());
-}
+       set_sync_point (get_preferred_edit_position (), get_regions_from_selection_and_edit_point ());
+}
 
 void
 Editor::set_sync_point (framepos_t where, const RegionSelection& rs)
@@ -3889,7 +3936,7 @@ Editor::freeze_route ()
        /* stop transport before we start. this is important */
 
        _session->request_transport_speed (0.0);
-       
+
        /* wait for just a little while, because the above call is asynchronous */
 
        Glib::usleep (250000);
@@ -3940,6 +3987,7 @@ Editor::freeze_route ()
                gtk_main_iteration ();
        }
 
+       pthread_join (itt.thread, 0);
        current_interthread_info = 0;
 }
 
@@ -3978,9 +4026,9 @@ Editor::bounce_range_selection (bool replace, bool enable_processing)
 
        for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
 
-               RouteTimeAxisView* rtv;
+               RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 
-               if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
+               if (!rtv) {
                        continue;
                }
 
@@ -4118,6 +4166,7 @@ Editor::cut_copy (CutCopyOp op)
                Location* loc = find_location_from_marker (entered_marker, ignored);
 
                if (_session && loc) {
+                       entered_marker = NULL;
                        Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::really_remove_marker), loc));
                }
 
@@ -4144,15 +4193,15 @@ Editor::cut_copy (CutCopyOp op)
 
                if (!selection->regions.empty()) {
                        cut_copy_regions (op, selection->regions);
-                       
+
                        if (op == Cut || op == Delete) {
                                selection->clear_regions ();
                        }
                }
-               
+
                if (!selection->points.empty()) {
                        cut_copy_points (op);
-                       
+
                        if (op == Cut || op == Delete) {
                                selection->clear_points ();
                        }
@@ -4170,33 +4219,38 @@ Editor::cut_copy (CutCopyOp op)
 
                did_edit = true;
                cut_copy_ranges (op);
-               
+
                if (op == Cut || op == Delete) {
                        selection->clear_time ();
                }
        }
-       
+
        if (did_edit) {
                /* reset repeated paste state */
                paste_count    = 0;
                last_paste_pos = 0;
-               commit_reversible_command ();   
+               commit_reversible_command ();
        }
-       
+
        if (op == Delete || op == Cut || op == Clear) {
                _drags->abort ();
        }
 }
 
+
 struct AutomationRecord {
        AutomationRecord () : state (0) , line(NULL) {}
        AutomationRecord (XMLNode* s, const AutomationLine* l) : state (s) , line (l) {}
-       
+
        XMLNode* state; ///< state before any operation
        const AutomationLine* line; ///< line this came from
        boost::shared_ptr<Evoral::ControlList> copy; ///< copied events for the cut buffer
 };
-
+struct PointsSelectionPositionSorter {
+       bool operator() (ControlPoint* a, ControlPoint* b) {
+               return (*(a->model()))->when < (*(b->model()))->when;
+       }
+};
 /** Cut, copy or clear selected automation points.
  *  @param op Operation (Cut, Copy or Clear)
  */
@@ -4214,9 +4268,12 @@ Editor::cut_copy_points (Editing::CutCopyOp op, Evoral::Beats earliest, bool mid
        typedef std::map<boost::shared_ptr<AutomationList>, AutomationRecord> Lists;
        Lists lists;
 
+       /* user could select points in any order */
+       selection->points.sort(PointsSelectionPositionSorter ());
+       
        /* Go through all selected points, making an AutomationRecord for each distinct AutomationList */
-       for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
-               const AutomationLine&                   line = (*i)->line();
+       for (PointSelection::iterator sel_point = selection->points.begin(); sel_point != selection->points.end(); ++sel_point) {
+               const AutomationLine&                   line = (*sel_point)->line();
                const boost::shared_ptr<AutomationList> al   = line.the_list();
                if (lists.find (al) == lists.end ()) {
                        /* We haven't seen this list yet, so make a record for it.  This includes
@@ -4236,17 +4293,17 @@ Editor::cut_copy_points (Editing::CutCopyOp op, Evoral::Beats earliest, bool mid
 
                /* Add all selected points to the relevant copy ControlLists */
                framepos_t start = std::numeric_limits<framepos_t>::max();
-               for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
-                       boost::shared_ptr<AutomationList> al = (*i)->line().the_list();
-                       AutomationList::const_iterator    j  = (*i)->model();
+               for (PointSelection::iterator sel_point = selection->points.begin(); sel_point != selection->points.end(); ++sel_point) {
+                       boost::shared_ptr<AutomationList>    al = (*sel_point)->line().the_list();
+                       AutomationList::const_iterator ctrl_evt = (*sel_point)->model ();
 
-                       lists[al].copy->fast_simple_add ((*j)->when, (*j)->value);
+                       lists[al].copy->fast_simple_add ((*ctrl_evt)->when, (*ctrl_evt)->value);
                        if (midi) {
                                /* Update earliest MIDI start time in beats */
-                               earliest = std::min(earliest, Evoral::Beats((*j)->when));
+                               earliest = std::min(earliest, Evoral::Beats((*ctrl_evt)->when));
                        } else {
                                /* Update earliest session start time in frames */
-                               start = std::min(start, (*i)->line().session_position(j));
+                               start = std::min(start, (*sel_point)->line().session_position(ctrl_evt));
                        }
                }
 
@@ -4269,26 +4326,40 @@ Editor::cut_copy_points (Editing::CutCopyOp op, Evoral::Beats earliest, bool mid
                           start time, so relative ordering between points is preserved
                           when copying from several lists and the paste starts at the
                           earliest copied piece of data. */
-                       for (AutomationList::iterator j = i->second.copy->begin(); j != i->second.copy->end(); ++j) {
-                               (*j)->when -= line_offset;
+                       boost::shared_ptr<Evoral::ControlList> &al_cpy = i->second.copy;
+                       for (AutomationList::iterator ctrl_evt = al_cpy->begin(); ctrl_evt != al_cpy->end(); ++ctrl_evt) {
+                               (*ctrl_evt)->when -= line_offset;
                        }
 
                        /* And add it to the cut buffer */
-                       cut_buffer->add (i->second.copy);
+                       cut_buffer->add (al_cpy);
                }
        }
-               
+
        if (op == Delete || op == Cut) {
                /* This operation needs to remove things from the main AutomationList, so do that now */
-               
+
                for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
                        i->first->freeze ();
                }
 
                /* Remove each selected point from its AutomationList */
-               for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
-                       boost::shared_ptr<AutomationList> al = (*i)->line().the_list();
-                       al->erase ((*i)->model ());
+               for (PointSelection::iterator sel_point = selection->points.begin(); sel_point != selection->points.end(); ++sel_point) {
+                       AutomationLine& line = (*sel_point)->line ();
+                       boost::shared_ptr<AutomationList> al = line.the_list();
+
+                       bool erase = true;
+                       
+                       if (dynamic_cast<AudioRegionGainLine*> (&line)) {
+                               /* removing of first and last gain point in region gain lines is prohibited*/
+                               if (line.is_last_point (*(*sel_point)) || line.is_first_point (*(*sel_point))) {
+                                       erase = false;
+                               }
+                       }
+
+                       if(erase) {
+                               al->erase ((*sel_point)->model ());
+                       }
                }
 
                /* Thaw the lists and add undo records for them */
@@ -4365,7 +4436,7 @@ Editor::remove_clicked_region ()
        vector<Command*> cmds;
        playlist->rdiff (cmds);
        _session->add_commands (cmds);
-       
+
        _session->add_command(new StatefulDiffCommand (playlist));
        commit_reversible_command ();
 }
@@ -4404,7 +4475,7 @@ Editor::remove_selected_regions ()
 
                if (!playlist) {
                        // is this check necessary?
-                       continue;
+                       continue;
                }
 
                /* get_regions_from_selection_and_entered() guarantees that
@@ -4440,7 +4511,7 @@ Editor::remove_selected_regions ()
                vector<Command*> cmds;
                (*pl)->rdiff (cmds);
                _session->add_commands (cmds);
-               
+
                _session->add_command(new StatefulDiffCommand (*pl));
        }
 
@@ -4532,15 +4603,15 @@ Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
                if (op != Delete) {
 
                        vector<PlaylistMapping>::iterator z;
-                       
+
                        for (z = pmap.begin(); z != pmap.end(); ++z) {
                                if ((*z).tv == &tv) {
                                        break;
                                }
                        }
-                       
+
                        assert (z != pmap.end());
-                       
+
                        if (!(*z).pl) {
                                npl = PlaylistFactory::create (pl->data_type(), *_session, "cutlist", true);
                                npl->freeze();
@@ -4561,7 +4632,7 @@ Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
                        if (Config->get_edit_mode() == Ripple)
                                pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
                        break;
-                       
+
                case Cut:
                        _xx = RegionFactory::create (r);
                        npl->add_region (_xx, r->position() - first_position);
@@ -4588,20 +4659,20 @@ Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
        if (op != Delete) {
 
                list<boost::shared_ptr<Playlist> > foo;
-               
-               /* the pmap is in the same order as the tracks in which selected regions occured */
-               
+
+               /* the pmap is in the same order as the tracks in which selected regions occurred */
+
                for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
                        if ((*i).pl) {
                                (*i).pl->thaw();
                                foo.push_back ((*i).pl);
                        }
                }
-               
+
                if (!foo.empty()) {
                        cut_buffer->set (foo);
                }
-               
+
                if (pmap.empty()) {
                        _last_cut_copy_source_track = 0;
                } else {
@@ -4618,7 +4689,7 @@ Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
                vector<Command*> cmds;
                (*pl)->rdiff (cmds);
                _session->add_commands (cmds);
-               
+
                _session->add_command (new StatefulDiffCommand (*pl));
        }
 }
@@ -4641,7 +4712,7 @@ Editor::cut_copy_ranges (CutCopyOp op)
                        return;
                }
                ts.push_back (entered_track);
-       } 
+       }
 
        for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
                (*i)->cut_copy_clear (*selection, op);
@@ -4653,7 +4724,7 @@ Editor::paste (float times, bool from_context)
 {
         DEBUG_TRACE (DEBUG::CutNPaste, "paste to preferred edit pos\n");
 
-       paste_internal (get_preferred_edit_position (EDIT_IGNORE_NONE, from_context), times);
+       paste_internal (get_preferred_edit_position (EDIT_IGNORE_NONE, from_context), times, get_grid_music_divisions (0));
 }
 
 void
@@ -4667,11 +4738,11 @@ Editor::mouse_paste ()
        }
 
        snap_to (where);
-       paste_internal (where, 1);
+       paste_internal (where, 1, get_grid_music_divisions (0));
 }
 
 void
-Editor::paste_internal (framepos_t position, float times)
+Editor::paste_internal (framepos_t position, float times, const int32_t sub_num)
 {
         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("apparent paste position is %1\n", position));
 
@@ -4764,7 +4835,7 @@ Editor::paste_internal (framepos_t position, float times)
               "greedy" paste from one automation type to another. */
 
            PasteContext ctx(paste_count, times, ItemCounts(), true);
-           ts.front()->paste (position, *cut_buffer, ctx);
+           ts.front()->paste (position, *cut_buffer, ctx, sub_num);
 
        } else {
 
@@ -4772,13 +4843,20 @@ Editor::paste_internal (framepos_t position, float times)
 
                PasteContext ctx(paste_count, times, ItemCounts(), false);
                for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
-                       (*i)->paste (position, *cut_buffer, ctx);
+                       (*i)->paste (position, *cut_buffer, ctx, sub_num);
                }
        }
 
        commit_reversible_command ();
 }
 
+void
+Editor::duplicate_regions (float times)
+{
+       RegionSelection rs (get_regions_from_selection_and_entered());
+       duplicate_some_regions (rs, times);
+}
+
 void
 Editor::duplicate_some_regions (RegionSelection& regions, float times)
 {
@@ -4792,6 +4870,7 @@ Editor::duplicate_some_regions (RegionSelection& regions, float times)
 
        framepos_t const start_frame = regions.start ();
        framepos_t const end_frame = regions.end_frame ();
+       framecnt_t const gap = end_frame - start_frame + 1;
 
        begin_reversible_command (Operations::duplicate_region);
 
@@ -4806,9 +4885,10 @@ Editor::duplicate_some_regions (RegionSelection& regions, float times)
                latest_regionviews.clear ();
                sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
 
-               playlist = (*i)->region()->playlist();
+               framepos_t const position = end_frame + (r->first_frame() - start_frame + 1);
+               playlist = (*i)->region()->playlist();
                playlist->clear_changes ();
-               playlist->duplicate (r, end_frame + (r->first_frame() - start_frame), times);
+               playlist->duplicate (r, position, gap, times);
                _session->add_command(new StatefulDiffCommand (playlist));
 
                c.disconnect ();
@@ -4831,18 +4911,9 @@ Editor::duplicate_selection (float times)
        }
 
        boost::shared_ptr<Playlist> playlist;
-       vector<boost::shared_ptr<Region> > new_regions;
-       vector<boost::shared_ptr<Region> >::iterator ri;
-
-       create_region_from_selection (new_regions);
-
-       if (new_regions.empty()) {
-               return;
-       }
-
-       ri = new_regions.begin();
 
        TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
+
        bool in_command = false;
 
        for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
@@ -4850,27 +4921,34 @@ Editor::duplicate_selection (float times)
                        continue;
                }
                playlist->clear_changes ();
-               framepos_t end;
+
                if (clicked_selection) {
-                       end = selection->time[clicked_selection].end;
+                       playlist->duplicate_range (selection->time[clicked_selection], times);
                } else {
-                       end = selection->time.end_frame();
+                       playlist->duplicate_ranges (selection->time, times);
                }
-               playlist->duplicate (*ri, end, times);
 
                if (!in_command) {
-                       begin_reversible_command (_("duplicate selection"));
+                       begin_reversible_command (_("duplicate range selection"));
                        in_command = true;
                }
                _session->add_command (new StatefulDiffCommand (playlist));
 
-               ++ri;
-               if (ri == new_regions.end()) {
-                       --ri;
-               }
        }
 
        if (in_command) {
+               // now "move" range selection to after the current range selection
+               framecnt_t distance = 0;
+
+               if (clicked_selection) {
+                       distance = selection->time[clicked_selection].end -
+                                  selection->time[clicked_selection].start;
+               } else {
+                       distance = selection->time.end_frame() - selection->time.start();
+               }
+
+               selection->move_time (distance);
+
                commit_reversible_command ();
        }
 }
@@ -5006,7 +5084,7 @@ Editor::normalize_region ()
 
        NormalizeDialog dialog (rs.size() > 1);
 
-       if (dialog.run () == RESPONSE_CANCEL) {
+       if (dialog.run () != RESPONSE_ACCEPT) {
                return;
        }
 
@@ -5020,25 +5098,36 @@ Editor::normalize_region ()
           obtain the maximum amplitude of them all.
        */
        list<double> max_amps;
+       list<double> rms_vals;
        double max_amp = 0;
+       double max_rms = 0;
+       bool use_rms = dialog.constrain_rms ();
+
        for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
                AudioRegionView const * arv = dynamic_cast<AudioRegionView const *> (*i);
-               if (arv) {
-                       dialog.descend (1.0 / regions);
-                       double const a = arv->audio_region()->maximum_amplitude (&dialog);
-
-                       if (a == -1) {
-                               /* the user cancelled the operation */
-                               return;
-                       }
+               if (!arv) {
+                       continue;
+               }
+               dialog.descend (1.0 / regions);
+               double const a = arv->audio_region()->maximum_amplitude (&dialog);
+               if (use_rms) {
+                       double r = arv->audio_region()->rms (&dialog);
+                       max_rms = max (max_rms, r);
+                       rms_vals.push_back (r);
+               }
 
-                       max_amps.push_back (a);
-                       max_amp = max (max_amp, a);
-                       dialog.ascend ();
+               if (a == -1) {
+                       /* the user cancelled the operation */
+                       return;
                }
+
+               max_amps.push_back (a);
+               max_amp = max (max_amp, a);
+               dialog.ascend ();
        }
 
        list<double>::const_iterator a = max_amps.begin ();
+       list<double>::const_iterator l = rms_vals.begin ();
        bool in_command = false;
 
        for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
@@ -5049,9 +5138,21 @@ Editor::normalize_region ()
 
                arv->region()->clear_changes ();
 
-               double const amp = dialog.normalize_individually() ? *a : max_amp;
+               double amp = dialog.normalize_individually() ? *a : max_amp;
+               double target = dialog.target_peak (); // dB
+
+               if (use_rms) {
+                       double const amp_rms = dialog.normalize_individually() ? *l : max_rms;
+                       const double t_rms = dialog.target_rms ();
+                       const gain_t c_peak = dB_to_coefficient (target);
+                       const gain_t c_rms  = dB_to_coefficient (t_rms);
+                       if ((amp_rms / c_rms) > (amp / c_peak)) {
+                               amp = amp_rms;
+                               target = t_rms;
+                       }
+               }
 
-               arv->audio_region()->normalize (amp, dialog.target ());
+               arv->audio_region()->normalize (amp, target);
 
                if (!in_command) {
                        begin_reversible_command (_("normalize"));
@@ -5060,6 +5161,7 @@ Editor::normalize_region ()
                _session->add_command (new StatefulDiffCommand (arv->region()));
 
                ++a;
+               ++l;
        }
 
        if (in_command) {
@@ -5177,15 +5279,18 @@ Editor::strip_region_silence ()
                }
        }
 
+       assert (!audio_only.empty());
+
        StripSilenceDialog d (_session, audio_only);
        int const r = d.run ();
 
-        d.drop_rects ();
+       d.drop_rects ();
 
-        if (r == Gtk::RESPONSE_OK) {
-                ARDOUR::AudioIntervalMap silences;
-                d.silences (silences);
+       if (r == Gtk::RESPONSE_OK) {
+               ARDOUR::AudioIntervalMap silences;
+               d.silences (silences);
                StripSilence s (*_session, silences, d.fade_length());
+
                apply_filter (s, _("strip silence"), &d);
        }
 }
@@ -5199,8 +5304,7 @@ Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv
        vector<Evoral::Sequence<Evoral::Beats>::Notes> v;
        v.push_back (selected);
 
-       framepos_t    pos_frames = mrv.midi_region()->position() - mrv.midi_region()->start();
-       Evoral::Beats pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
+       Evoral::Beats pos_beats  = Evoral::Beats (mrv.midi_region()->beat()) - mrv.midi_region()->start_beats();
 
        return op (mrv.midi_region()->model(), pos_beats, v);
 }
@@ -5305,6 +5409,11 @@ Editor::quantize_regions (const RegionSelection& rs)
                quantize_dialog = new QuantizeDialog (*this);
        }
 
+       if (quantize_dialog->is_mapped()) {
+               /* in progress already */
+               return;
+       }
+
        quantize_dialog->present ();
        const int r = quantize_dialog->run ();
        quantize_dialog->hide ();
@@ -5356,18 +5465,42 @@ Editor::transform_regions (const RegionSelection& rs)
                return;
        }
 
-       TransformDialog* td = new TransformDialog();
+       TransformDialog td;
 
-       td->present();
-       const int r = td->run();
-       td->hide();
+       td.present();
+       const int r = td.run();
+       td.hide();
 
        if (r == Gtk::RESPONSE_OK) {
-               Transform transform(td->get());
+               Transform transform(td.get());
                apply_midi_note_edit_op(transform, rs);
        }
 }
 
+void
+Editor::transpose_region ()
+{
+       if (_session) {
+               transpose_regions(get_regions_from_selection_and_entered ());
+       }
+}
+
+void
+Editor::transpose_regions (const RegionSelection& rs)
+{
+       if (rs.n_midi_regions() == 0) {
+               return;
+       }
+
+       TransposeDialog d;
+       int const r = d.run ();
+
+       if (r == RESPONSE_ACCEPT) {
+               Transpose transpose(d.semitones ());
+               apply_midi_note_edit_op (transpose, rs);
+       }
+}
+
 void
 Editor::insert_patch_change (bool from_context)
 {
@@ -5436,6 +5569,11 @@ Editor::apply_filter (Filter& filter, string command, ProgressReporter* progress
                                playlist->clear_changes ();
                                playlist->clear_owned_changes ();
 
+                               if (!in_command) {
+                                       begin_reversible_command (command);
+                                       in_command = true;
+                               }
+
                                if (filter.results.empty ()) {
 
                                        /* no regions returned; remove the old one */
@@ -5456,22 +5594,15 @@ Editor::apply_filter (Filter& filter, string command, ProgressReporter* progress
                                        }
 
                                }
+
                                /* We might have removed regions, which alters other regions' layering_index,
                                   so we need to do a recursive diff here.
                                */
-
-                               if (!in_command) {
-                                       begin_reversible_command (command);
-                                       in_command = true;
-                               }
                                vector<Command*> cmds;
                                playlist->rdiff (cmds);
                                _session->add_commands (cmds);
-                               
-                               _session->add_command(new StatefulDiffCommand (playlist));
 
-                       } else {
-                               continue;
+                               _session->add_command(new StatefulDiffCommand (playlist));
                        }
 
                        if (progress) {
@@ -5504,7 +5635,7 @@ Editor::reset_region_gain_envelopes ()
        }
 
        bool in_command = false;
-       
+
        for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
                AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
                if (arv) {
@@ -5598,13 +5729,13 @@ Editor::toggle_region_lock ()
        }
 
        begin_reversible_command (_("toggle region lock"));
-       
+
        for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
                (*i)->region()->clear_changes ();
                (*i)->region()->set_locked (!(*i)->region()->locked());
                _session->add_command (new StatefulDiffCommand ((*i)->region()));
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -5622,13 +5753,13 @@ Editor::toggle_region_video_lock ()
        }
 
        begin_reversible_command (_("Toggle Video Lock"));
-       
+
        for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
                (*i)->region()->clear_changes ();
                (*i)->region()->set_video_locked (!(*i)->region()->video_locked());
                _session->add_command (new StatefulDiffCommand ((*i)->region()));
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -5646,14 +5777,14 @@ Editor::toggle_region_lock_style ()
        }
 
        begin_reversible_command (_("region lock style"));
-       
+
        for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
                (*i)->region()->clear_changes ();
                PositionLockStyle const ns = (*i)->region()->position_lock_style() == AudioTime ? MusicTime : AudioTime;
                (*i)->region()->set_position_lock_style (ns);
                _session->add_command (new StatefulDiffCommand ((*i)->region()));
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -5671,13 +5802,13 @@ Editor::toggle_opaque_region ()
        }
 
        begin_reversible_command (_("change region opacity"));
-       
+
        for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
                (*i)->region()->clear_changes ();
                (*i)->region()->set_opaque (!(*i)->region()->opaque());
                _session->add_command (new StatefulDiffCommand ((*i)->region()));
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -5694,11 +5825,11 @@ Editor::toggle_record_enable ()
                        continue;
 
                if (first) {
-                       new_state = !rtav->track()->record_enabled();
+                       new_state = !rtav->track()->rec_enable_control()->get_value();
                        first = false;
                }
 
-               rtav->track()->set_record_enabled (new_state, this);
+               rtav->track()->rec_enable_control()->set_value (new_state, Controllable::UseGroup);
        }
 }
 
@@ -5707,7 +5838,7 @@ Editor::toggle_solo ()
 {
        bool new_state = false;
        bool first = true;
-       boost::shared_ptr<RouteList> rl (new RouteList);
+       boost::shared_ptr<ControlList> cl (new ControlList);
 
        for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
                RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
@@ -5721,10 +5852,10 @@ Editor::toggle_solo ()
                        first = false;
                }
 
-               rl->push_back (rtav->route());
+               cl->push_back (rtav->route()->solo_control());
        }
 
-       _session->set_solo (rl, new_state, Session::rt_cleanup, true);
+       _session->set_controls (cl, new_state ? 1.0 : 0.0, Controllable::UseGroup);
 }
 
 void
@@ -5749,7 +5880,7 @@ Editor::toggle_mute ()
                rl->push_back (rtav->route());
        }
 
-       _session->set_mute (rl, new_state, Session::rt_cleanup, true);
+       _session->set_controls (route_list_to_control_list (rl, &Stripable::mute_control), new_state, Controllable::UseGroup);
 }
 
 void
@@ -5995,7 +6126,7 @@ Editor::toggle_region_fades (int dir)
        if (_ignore_region_action) {
                return;
        }
-       
+
        boost::shared_ptr<AudioRegion> ar;
        bool yn = false;
 
@@ -6115,7 +6246,7 @@ Editor::set_playhead_cursor ()
                }
        }
 
-       if (ARDOUR_UI::config()->get_follow_edits()) {
+       if (UIConfiguration::instance().get_follow_edits() && (!_session || !_session->config.get_external_sync())) {
                cancel_time_selection();
        }
 }
@@ -6123,6 +6254,10 @@ Editor::set_playhead_cursor ()
 void
 Editor::split_region ()
 {
+       if (_drags->active ()) {
+               return;
+       }
+
        //if a range is selected, separate it
        if ( !selection->time.empty()) {
                separate_regions_between (selection->time);
@@ -6131,7 +6266,7 @@ Editor::split_region ()
 
        //if no range was selected, try to find some regions to split
        if (current_mouse_mode() == MouseObject) {  //don't try this for Internal Edit, Stretch, Draw, etc.
-       
+
                RegionSelection rs = get_regions_from_selection_and_edit_point ();
 
                framepos_t where = get_preferred_edit_position ();
@@ -6140,16 +6275,14 @@ Editor::split_region ()
                        return;
                }
 
-               split_regions_at (where, rs);
+               if (snap_musical()) {
+                       split_regions_at (where, rs, get_grid_music_divisions (0));
+               } else {
+                       split_regions_at (where, rs, 0);
+               }
        }
 }
 
-struct EditorOrderRouteSorter {
-    bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
-           return a->order_key () < b->order_key ();
-    }
-};
-
 void
 Editor::select_next_route()
 {
@@ -6163,6 +6296,7 @@ Editor::select_next_route()
        RouteUI *rui;
        do {
                for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+
                        if (*i == current) {
                                ++i;
                                if (i != track_views.end()) {
@@ -6174,10 +6308,12 @@ Editor::select_next_route()
                                break;
                        }
                }
+
                rui = dynamic_cast<RouteUI *>(current);
-       } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
 
-       selection->set(current);
+       } while (current->hidden() || (rui == NULL) || !rui->route()->active());
+
+       selection->set (current);
 
        ensure_time_axis_view_is_visible (*current, false);
 }
@@ -6195,6 +6331,7 @@ Editor::select_prev_route()
        RouteUI *rui;
        do {
                for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
+
                        if (*i == current) {
                                ++i;
                                if (i != track_views.rend()) {
@@ -6206,7 +6343,8 @@ Editor::select_prev_route()
                        }
                }
                rui = dynamic_cast<RouteUI *>(current);
-       } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
+
+       } while (current->hidden() || (rui == NULL) || !rui->route()->active());
 
        selection->set (current);
 
@@ -6260,24 +6398,77 @@ Editor::set_punch_from_selection ()
        set_punch_range (start, end,  _("set punch range from selection"));
 }
 
+void
+Editor::set_auto_punch_range ()
+{
+       // auto punch in/out button from a single button
+       // If Punch In is unset, set punch range from playhead to end, enable punch in
+       // If Punch In is set, the next punch sets Punch Out, unless the playhead has been
+       //   rewound beyond the Punch In marker, in which case that marker will be moved back
+       //   to the current playhead position.
+       // If punch out is set, it clears the punch range and Punch In/Out buttons
+
+       if (_session == 0) {
+               return;
+       }
+
+       Location* tpl = transport_punch_location();
+       framepos_t now = playhead_cursor->current_frame();
+       framepos_t begin = now;
+       framepos_t end = _session->current_end_frame();
+
+       if (!_session->config.get_punch_in()) {
+               // First Press - set punch in and create range from here to eternity
+               set_punch_range (begin, end, _("Auto Punch In"));
+               _session->config.set_punch_in(true);
+       } else if (tpl && !_session->config.get_punch_out()) {
+               // Second press - update end range marker and set punch_out
+               if (now < tpl->start()) {
+                       // playhead has been rewound - move start back  and pretend nothing happened
+                       begin = now;
+                       set_punch_range (begin, end, _("Auto Punch In/Out"));
+               } else {
+                       // normal case for 2nd press - set the punch out
+                       end = playhead_cursor->current_frame ();
+                       set_punch_range (tpl->start(), now, _("Auto Punch In/Out"));
+                       _session->config.set_punch_out(true);
+               }
+       } else  {
+               if (_session->config.get_punch_out()) {
+                       _session->config.set_punch_out(false);
+               }
+
+               if (_session->config.get_punch_in()) {
+                       _session->config.set_punch_in(false);
+               }
+
+               if (tpl)
+               {
+                       // third press - unset punch in/out and remove range
+                       _session->locations()->remove(tpl);
+               }
+       }
+
+}
+
 void
 Editor::set_session_extents_from_selection ()
 {
        if (_session == 0) {
                return;
        }
-       
+
        framepos_t start, end;
        if (!get_selection_extents ( start, end))
                return;
 
        Location* loc;
        if ((loc = _session->locations()->session_range_location()) == 0) {
-               _session->set_session_extents ( start, end );  // this will create a new session range;  no need for UNDO
+               _session->set_session_extents (start, end);  // this will create a new session range;  no need for UNDO
        } else {
                XMLNode &before = loc->get_state();
 
-               _session->set_session_extents ( start, end );
+               _session->set_session_extents (start, end);
 
                XMLNode &after = loc->get_state();
 
@@ -6287,6 +6478,129 @@ Editor::set_session_extents_from_selection ()
 
                commit_reversible_command ();
        }
+
+       _session->set_end_is_free (false);
+}
+
+void
+Editor::set_punch_start_from_edit_point ()
+{
+       if (_session) {
+
+               framepos_t start = 0;
+               framepos_t end = max_framepos;
+
+               //use the existing punch end, if any
+               Location* tpl = transport_punch_location();
+               if (tpl) {
+                       end = tpl->end();
+               }
+
+               if ((_edit_point == EditAtPlayhead) && _session->transport_rolling()) {
+                       start = _session->audible_frame();
+               } else {
+                       start = get_preferred_edit_position();
+               }
+
+               //snap the selection start/end
+               snap_to(start);
+
+               //if there's not already a sensible selection endpoint, go "forever"
+               if ( start > end ) {
+                       end = max_framepos;
+               }
+
+               set_punch_range (start, end, _("set punch start from EP"));
+       }
+
+}
+
+void
+Editor::set_punch_end_from_edit_point ()
+{
+       if (_session) {
+
+               framepos_t start = 0;
+               framepos_t end = max_framepos;
+
+               //use the existing punch start, if any
+               Location* tpl = transport_punch_location();
+               if (tpl) {
+                       start = tpl->start();
+               }
+
+               if ((_edit_point == EditAtPlayhead) && _session->transport_rolling()) {
+                       end = _session->audible_frame();
+               } else {
+                       end = get_preferred_edit_position();
+               }
+
+               //snap the selection start/end
+               snap_to(end);
+
+               set_punch_range (start, end, _("set punch end from EP"));
+
+       }
+}
+
+void
+Editor::set_loop_start_from_edit_point ()
+{
+       if (_session) {
+
+               framepos_t start = 0;
+               framepos_t end = max_framepos;
+
+               //use the existing loop end, if any
+               Location* tpl = transport_loop_location();
+               if (tpl) {
+                       end = tpl->end();
+               }
+
+               if ((_edit_point == EditAtPlayhead) && _session->transport_rolling()) {
+                       start = _session->audible_frame();
+               } else {
+                       start = get_preferred_edit_position();
+               }
+
+               //snap the selection start/end
+               snap_to(start);
+
+               //if there's not already a sensible selection endpoint, go "forever"
+               if ( start > end ) {
+                       end = max_framepos;
+               }
+
+               set_loop_range (start, end, _("set loop start from EP"));
+       }
+
+}
+
+void
+Editor::set_loop_end_from_edit_point ()
+{
+       if (_session) {
+
+               framepos_t start = 0;
+               framepos_t end = max_framepos;
+
+               //use the existing loop start, if any
+               Location* tpl = transport_loop_location();
+               if (tpl) {
+                       start = tpl->start();
+               }
+
+               if ((_edit_point == EditAtPlayhead) && _session->transport_rolling()) {
+                       end = _session->audible_frame();
+               } else {
+                       end = get_preferred_edit_position();
+               }
+
+               //snap the selection start/end
+               snap_to(end);
+
+               set_loop_range (start, end, _("set loop end from EP"));
+       }
 }
 
 void
@@ -6318,30 +6632,6 @@ Editor::pitch_shift_region ()
        pitch_shift (audio_rs, 1.2);
 }
 
-void
-Editor::transpose_region ()
-{
-       RegionSelection rs = get_regions_from_selection_and_entered ();
-
-       list<MidiRegionView*> midi_region_views;
-       for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
-               MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
-               if (mrv) {
-                       midi_region_views.push_back (mrv);
-               }
-       }
-
-       TransposeDialog d;
-       int const r = d.run ();
-       if (r != RESPONSE_ACCEPT) {
-               return;
-       }
-
-       for (list<MidiRegionView*>::iterator i = midi_region_views.begin(); i != midi_region_views.end(); ++i) {
-               (*i)->midi_region()->transpose (d.semitones ());
-       }
-}
-
 void
 Editor::set_tempo_from_region ()
 {
@@ -6370,11 +6660,13 @@ Editor::define_one_bar (framepos_t start, framepos_t end)
 {
        framepos_t length = end - start;
 
-       const Meter& m (_session->tempo_map().meter_at (start));
+       const Meter& m (_session->tempo_map().meter_at_frame (start));
 
        /* length = 1 bar */
 
-       /* now we want frames per beat.
+       /* We're going to deliver a constant tempo here,
+          so we can use frames per beat to determine length.
+          now we want frames per beat.
           we have frames per bar, and beats per bar, so ...
        */
 
@@ -6393,7 +6685,7 @@ Editor::define_one_bar (framepos_t start, framepos_t end)
 
        */
 
-       const TempoSection& t (_session->tempo_map().tempo_section_at (start));
+       const TempoSection& t (_session->tempo_map().tempo_section_at_frame (start));
 
        bool do_global = false;
 
@@ -6444,9 +6736,8 @@ Editor::define_one_bar (framepos_t start, framepos_t end)
        } else if (t.frame() == start) {
                _session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
        } else {
-               Timecode::BBT_Time bbt;
-               _session->tempo_map().bbt_time (start, bbt);
-               _session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), bbt);
+               const Tempo tempo (beats_per_minute, t.note_type());
+               _session->tempo_map().add_tempo (tempo, 0.0, start, TempoSection::Constant, AudioTime);
        }
 
        XMLNode& after (_session->tempo_map().get_state());
@@ -6467,7 +6758,7 @@ Editor::split_region_at_transients ()
        }
 
        begin_reversible_command (_("split regions"));
-       
+
        for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
 
                RegionSelection::iterator tmp;
@@ -6477,14 +6768,15 @@ Editor::split_region_at_transients ()
 
                boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
 
-               if (ar && (ar->get_transients (positions) == 0)) {
+               if (ar) {
+                       ar->transients (positions);
                        split_region_at_points ((*i)->region(), positions, true);
                        positions.clear ();
                }
 
                i = tmp;
        }
-       
+
        commit_reversible_command ();
 
 }
@@ -6506,7 +6798,6 @@ Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList
                return;
        }
 
-
        if (positions.size() > 20 && can_ferret) {
                std::string msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
                MessageDialog msg (msgstr,
@@ -6559,27 +6850,28 @@ Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList
 
        framepos_t pos = 0;
 
+       framepos_t rstart = r->first_frame ();
+       framepos_t rend = r->last_frame ();
+
        while (x != positions.end()) {
 
                /* deal with positons that are out of scope of present region bounds */
-               if (*x <= 0 || *x > r->length()) {
+               if (*x <= rstart || *x > rend) {
                        ++x;
                        continue;
                }
 
-               /* file start = original start + how far we from the initial position ?
-                */
+               /* file start = original start + how far we from the initial position ?  */
 
                framepos_t file_start = r->start() + pos;
 
-               /* length = next position - current position
-                */
+               /* length = next position - current position */
 
-               framepos_t len = (*x) - pos;
+               framepos_t len = (*x) - pos - rstart;
 
                /* XXX we do we really want to allow even single-sample regions?
-                  shouldn't we have some kind of lower limit on region size?
-               */
+                * shouldn't we have some kind of lower limit on region size?
+                */
 
                if (len <= 0) {
                        break;
@@ -6599,14 +6891,15 @@ Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList
                plist.add (ARDOUR::Properties::length, len);
                plist.add (ARDOUR::Properties::name, new_name);
                plist.add (ARDOUR::Properties::layer, 0);
+               // TODO set transients_offset
 
                boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
                /* because we set annouce to false, manually add the new region to the
-                  RegionFactory map
-               */
+                * RegionFactory map
+                */
                RegionFactory::map_add (nr);
 
-               pl->add_region (nr, r->position() + pos);
+               pl->add_region (nr, rstart + pos);
 
                if (select_new) {
                        new_regions.push_front(nr);
@@ -6647,7 +6940,7 @@ Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList
        vector<Command*> cmds;
        pl->rdiff (cmds);
        _session->add_commands (cmds);
-       
+
        _session->add_command (new StatefulDiffCommand (pl));
 
        if (select_new) {
@@ -6674,12 +6967,11 @@ Editor::place_transient()
        framepos_t where = get_preferred_edit_position();
 
        begin_reversible_command (_("place transient"));
-       
+
        for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
-               framepos_t position = (*r)->region()->position();
-               (*r)->region()->add_transient(where - position);
+               (*r)->region()->add_transient(where);
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -6709,7 +7001,7 @@ Editor::snap_regions_to_grid ()
        }
 
        begin_reversible_command (_("snap regions to grid"));
-       
+
        for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
 
                boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
@@ -6732,7 +7024,7 @@ Editor::snap_regions_to_grid ()
                (*i)->thaw();
                used_playlists.pop_front();
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -6792,7 +7084,7 @@ Editor::close_region_gaps ()
        /* Iterate over the region list and make adjacent regions overlap by crossfade_len_ms */
 
        begin_reversible_command (_("close region gaps"));
-       
+
        int idx = 0;
        boost::shared_ptr<Region> last_region;
 
@@ -6831,7 +7123,7 @@ Editor::close_region_gaps ()
                (*i)->thaw();
                used_playlists.pop_front();
        }
-       
+
        commit_reversible_command ();
 }
 
@@ -6921,7 +7213,7 @@ Editor::playhead_forward_to_grid ()
        if (!_session) {
                return;
        }
-       
+
        framepos_t pos = playhead_cursor->current_frame ();
        if (pos < max_framepos - 1) {
                pos += 2;
@@ -6937,7 +7229,7 @@ Editor::playhead_backward_to_grid ()
        if (!_session) {
                return;
        }
-       
+
        framepos_t pos = playhead_cursor->current_frame ();
        if (pos > 2) {
                pos -= 2;
@@ -6993,6 +7285,7 @@ Editor::remove_tracks ()
 bool
 Editor::idle_remove_tracks ()
 {
+       Session::StateProtector sp (_session);
        _remove_tracks ();
        return false; /* do not call again */
 }
@@ -7056,7 +7349,7 @@ edit your ardour.rc file to set the\n\
 
        trackstr = P_("track", "tracks", ntracks);
        busstr = P_("bus", "busses", nbusses);
-       
+
        if (ntracks) {
                if (nbusses) {
                        prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
@@ -7095,13 +7388,41 @@ edit your ardour.rc file to set the\n\
                return;
        }
 
+       if (current_mixer_strip && routes.size () > 1 && std::find (routes.begin(), routes.end(), current_mixer_strip->route()) != routes.end ()) {
+               /* Route deletion calls Editor::timeaxisview_deleted() iteratively (for each deleted
+                * route). If the deleted route is currently displayed in the Editor-Mixer (highly
+                * likely because deletion requires selection) this will call
+                * Editor::set_selected_mixer_strip () which is expensive ( MixerStrip::set_route() ).
+                * It's likewise likely that the route that has just been displayed in the
+                * Editor-Mixer will be next in line for deletion.
+                *
+                * So simply switch to the master-bus (if present)
+                */
+               for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+                       if ((*i)->stripable ()->is_master ()) {
+                               set_selected_mixer_strip (*(*i));
+                               break;
+                       }
+               }
+       }
+
+       Mixer_UI::instance()->selection().block_routes_changed (true);
+       selection->block_tracks_changed (true);
        {
-               Session::StateProtector sp (_session);
                DisplaySuspender ds;
+               boost::shared_ptr<RouteList> rl (new RouteList);
                for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
-                       _session->remove_route (*x);
+                       rl->push_back (*x);
                }
+               _session->remove_routes (rl);
        }
+       /* TrackSelection and RouteList leave scope,
+        * destructors are called,
+        * diskstream drops references, save_state is called (again for every track)
+        */
+       selection->block_tracks_changed (false);
+       Mixer_UI::instance()->selection().block_routes_changed (false);
+       selection->TracksChanged (); /* EMIT SIGNAL */
 }
 
 void
@@ -7122,12 +7443,10 @@ Editor::do_insert_time ()
                return;
        }
 
-       InsertTimeOption opt = d.intersected_region_action ();
-
        insert_time (
-               get_preferred_edit_position(),
+               d.position(),
                d.distance(),
-               opt,
+               d.intersected_region_action (),
                d.all_playlists(),
                d.move_glued(),
                d.move_markers(),
@@ -7164,7 +7483,7 @@ Editor::insert_time (
 
                if (all_playlists) {
                        RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
-                       if (rtav) {
+                       if (rtav && rtav->track ()) {
                                vector<boost::shared_ptr<Playlist> > all = _session->playlists->playlists_for_track (rtav->track ());
                                for (vector<boost::shared_ptr<Playlist> >::iterator p = all.begin(); p != all.end(); ++p) {
                                        pl.insert (*p);
@@ -7175,14 +7494,15 @@ Editor::insert_time (
                                pl.insert ((*x)->playlist ());
                        }
                }
-               
+
                for (set<boost::shared_ptr<Playlist> >::iterator i = pl.begin(); i != pl.end(); ++i) {
 
                        (*i)->clear_changes ();
                        (*i)->clear_owned_changes ();
 
                        if (opt == SplitIntersected) {
-                               (*i)->split (pos);
+                               /* non musical split */
+                               (*i)->split (pos, 0);
                        }
 
                        (*i)->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
@@ -7273,7 +7593,6 @@ Editor::do_remove_time ()
                return;
        }
 
-       framepos_t pos = get_preferred_edit_position (EDIT_IGNORE_MOUSE);
        InsertRemoveTimeDialog d (*this, true);
 
        int response = d.run ();
@@ -7281,7 +7600,7 @@ Editor::do_remove_time ()
        if (response != RESPONSE_OK) {
                return;
        }
-       
+
        framecnt_t distance = d.distance();
 
        if (distance == 0) {
@@ -7289,7 +7608,7 @@ Editor::do_remove_time ()
        }
 
        remove_time (
-               pos,
+               d.position(),
                distance,
                SplitIntersected,
                d.move_glued(),
@@ -7301,7 +7620,7 @@ Editor::do_remove_time ()
 }
 
 void
-Editor::remove_time (framepos_t pos, framecnt_t frames, InsertTimeOption opt, 
+Editor::remove_time (framepos_t pos, framecnt_t frames, InsertTimeOption opt,
                     bool ignore_music_glue, bool markers_too, bool glued_markers_too, bool locked_markers_too, bool tempo_too)
 {
        if (Config->get_edit_mode() == Lock) {
@@ -7313,31 +7632,31 @@ Editor::remove_time (framepos_t pos, framecnt_t frames, InsertTimeOption opt,
        for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
                /* regions */
                boost::shared_ptr<Playlist> pl = (*x)->playlist();
-               
+
                if (pl) {
 
                        XMLNode &before = pl->get_state();
-                       
+
                        std::list<AudioRange> rl;
                        AudioRange ar(pos, pos+frames, 0);
                        rl.push_back(ar);
                        pl->cut (rl);
                        pl->shift (pos, -frames, true, ignore_music_glue);
-                       
+
                        if (!in_command) {
-                               begin_reversible_command (_("cut time"));
+                               begin_reversible_command (_("remove time"));
                                in_command = true;
                        }
                        XMLNode &after = pl->get_state();
-                       
+
                        _session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
                }
-                       
+
                /* automation */
                RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
                if (rtav) {
                        if (!in_command) {
-                               begin_reversible_command (_("cut time"));
+                               begin_reversible_command (_("remove time"));
                                in_command = true;
                        }
                        rtav->route ()->shift (pos, -frames);
@@ -7345,7 +7664,7 @@ Editor::remove_time (framepos_t pos, framecnt_t frames, InsertTimeOption opt,
        }
 
        std::list<Location*> loc_kill_list;
-       
+
        /* markers */
        if (markers_too) {
                bool moved = false;
@@ -7407,30 +7726,30 @@ Editor::remove_time (framepos_t pos, framecnt_t frames, InsertTimeOption opt,
                for (list<Location*>::iterator i = loc_kill_list.begin(); i != loc_kill_list.end(); ++i) {
                        _session->locations()->remove( *i );
                }
-       
+
                if (moved) {
                        if (!in_command) {
-                               begin_reversible_command (_("cut time"));
+                               begin_reversible_command (_("remove time"));
                                in_command = true;
                        }
                        XMLNode& after (_session->locations()->get_state());
                        _session->add_command (new MementoCommand<Locations>(*_session->locations(), &before, &after));
                }
        }
-       
+
        if (tempo_too) {
                XMLNode& before (_session->tempo_map().get_state());
 
-               if (_session->tempo_map().cut_time (pos, frames) ) {
+               if (_session->tempo_map().remove_time (pos, frames) ) {
                        if (!in_command) {
-                               begin_reversible_command (_("cut time"));
+                               begin_reversible_command (_("remove time"));
                                in_command = true;
                        }
                        XMLNode& after (_session->tempo_map().get_state());
                        _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
                }
        }
-       
+
        if (in_command) {
                commit_reversible_command ();
        }
@@ -7489,15 +7808,15 @@ Editor::fit_tracks (TrackViewList & tracks)
 
        /* compute the per-track height from:
 
-          total canvas visible height - 
+          total canvas visible height -
                  height that will be taken by visible children of selected
-                 tracks - height of the ruler/hscroll area 
+                 tracks - height of the ruler/hscroll area
        */
        uint32_t h = (uint32_t) floor ((trackviews_height() - child_heights) / visible_tracks);
        double first_y_pos = DBL_MAX;
 
        if (h < TimeAxisView::preset_height (HeightSmall)) {
-               MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
+               MessageDialog msg (_("There are too many tracks to fit in the current window"));
                /* too small to be displayed */
                return;
        }
@@ -7594,7 +7913,7 @@ void
 Editor::start_visual_state_op (uint32_t n)
 {
        save_visual_state (n);
-       
+
        PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
        char buf[32];
        snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
@@ -7728,10 +8047,12 @@ Editor::toggle_midi_input_active (bool flip_others)
                        onoff = !mt->input_active();
                }
        }
-       
+
        _session->set_exclusive_input_active (rl, onoff, flip_others);
 }
 
+static bool ok_fine (GdkEventAny*) { return true; }
+
 void
 Editor::lock ()
 {
@@ -7740,31 +8061,35 @@ Editor::lock ()
 
                Gtk::Image* padlock = manage (new Gtk::Image (ARDOUR_UI_UTILS::get_icon ("padlock_closed")));
                lock_dialog->get_vbox()->pack_start (*padlock);
+               lock_dialog->signal_delete_event ().connect (sigc::ptr_fun (ok_fine));
 
                ArdourButton* b = manage (new ArdourButton);
                b->set_name ("lock button");
                b->set_text (_("Click to unlock"));
                b->signal_clicked.connect (sigc::mem_fun (*this, &Editor::unlock));
                lock_dialog->get_vbox()->pack_start (*b);
-               
+
                lock_dialog->get_vbox()->show_all ();
                lock_dialog->set_size_request (200, 200);
        }
 
        delete _main_menu_disabler;
        _main_menu_disabler = new MainMenuDisabler;
-       
+
        lock_dialog->present ();
+
+       lock_dialog->get_window()->set_decorations (Gdk::WMDecoration (0));
 }
 
 void
 Editor::unlock ()
 {
        lock_dialog->hide ();
-       
+
        delete _main_menu_disabler;
+       _main_menu_disabler = 0;
 
-       if (ARDOUR_UI::config()->get_lock_gui_after_seconds()) {
+       if (UIConfiguration::instance().get_lock_gui_after_seconds()) {
                start_lock_event_timing ();
        }
 }
@@ -7778,8 +8103,9 @@ Editor::bring_in_callback (Gtk::Label* label, uint32_t n, uint32_t total, string
 void
 Editor::update_bring_in_message (Gtk::Label* label, uint32_t n, uint32_t total, string name)
 {
+       Timers::TimerSuspender t;
        label->set_text (string_compose ("Copying %1, %2 of %3", name, n, total));
-       Gtkmm2ext::UI::instance()->flush_pending ();
+       Gtkmm2ext::UI::instance()->flush_pending (1);
 }
 
 void
@@ -7793,12 +8119,13 @@ Editor::bring_all_sources_into_session ()
        ArdourDialog w (_("Moving embedded files into session folder"));
        w.get_vbox()->pack_start (msg);
        w.present ();
-       
+
        /* flush all pending GUI events because we're about to start copying
         * files
         */
-       
-       Gtkmm2ext::UI::instance()->flush_pending ();
+
+       Timers::TimerSuspender t;
+       Gtkmm2ext::UI::instance()->flush_pending (3);
 
        cerr << " Do it\n";