Remove dead code.
[ardour.git] / gtk2_ardour / editor_ops.cc
index a2eae600525dd6cf453af08f005341baabc7b34f..f0de126c6735046a66bfa37be53d424fe17dd106 100644 (file)
@@ -24,6 +24,7 @@
 #include <cstdlib>
 #include <cmath>
 #include <string>
+#include <limits>
 #include <map>
 #include <set>
 
@@ -47,6 +48,7 @@
 #include "ardour/midi_track.h"
 #include "ardour/operations.h"
 #include "ardour/playlist_factory.h"
+#include "ardour/profile.h"
 #include "ardour/quantize.h"
 #include "ardour/region_factory.h"
 #include "ardour/reverse.h"
 #include "ardour/strip_silence.h"
 #include "ardour/transient_detector.h"
 
+#include "canvas/canvas.h"
+
+#include "actions.h"
 #include "ardour_ui.h"
-#include "debug.h"
-#include "editor.h"
-#include "time_axis_view.h"
-#include "route_time_axis.h"
+#include "audio_region_view.h"
+#include "audio_streamview.h"
 #include "audio_time_axis.h"
+#include "automation_region_view.h"
 #include "automation_time_axis.h"
 #include "control_point.h"
-#include "streamview.h"
-#include "audio_streamview.h"
-#include "audio_region_view.h"
-#include "midi_region_view.h"
-#include "rgb_macros.h"
-#include "selection_templates.h"
-#include "selection.h"
+#include "debug.h"
 #include "editing.h"
-#include "gtk-custom-hruler.h"
-#include "gui_thread.h"
-#include "keyboard.h"
-#include "utils.h"
+#include "editor.h"
+#include "editor_cursors.h"
 #include "editor_drag.h"
-#include "strip_silence_dialog.h"
-#include "editor_routes.h"
 #include "editor_regions.h"
-#include "quantize_dialog.h"
-#include "interthread_progress_window.h"
+#include "editor_routes.h"
+#include "gui_thread.h"
 #include "insert_time_dialog.h"
-#include "normalize_dialog.h"
-#include "editor_cursors.h"
+#include "interthread_progress_window.h"
+#include "item_counts.h"
+#include "keyboard.h"
+#include "midi_region_view.h"
+#include "mixer_strip.h"
 #include "mouse_cursors.h"
+#include "normalize_dialog.h"
 #include "patch_change_dialog.h"
+#include "quantize_dialog.h"
+#include "region_gain_line.h"
+#include "rgb_macros.h"
+#include "route_time_axis.h"
+#include "selection.h"
+#include "selection_templates.h"
+#include "streamview.h"
+#include "strip_silence_dialog.h"
+#include "time_axis_view.h"
 #include "transpose_dialog.h"
 
 #include "i18n.h"
@@ -131,7 +138,11 @@ Editor::split_regions_at (framepos_t where, RegionSelection& regions)
 {
        bool frozen = false;
 
-       list <boost::shared_ptr<Playlist > > used_playlists;
+       RegionSelection pre_selected_regions = selection->regions;
+       bool working_on_selection = !pre_selected_regions.empty();
+
+       list<boost::shared_ptr<Playlist> > used_playlists;
+       list<RouteTimeAxisView*> used_trackviews;
 
        if (regions.empty()) {
                return;
@@ -186,9 +197,16 @@ Editor::split_regions_at (framepos_t where, RegionSelection& regions)
 
                        /* remember used playlists so we can thaw them later */
                        used_playlists.push_back(pl);
+
+                       TimeAxisView& tv = (*a)->get_time_axis_view();
+                       RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
+                       if (rtv) {
+                               used_trackviews.push_back (rtv);
+                       }
                        pl->freeze();
                }
 
+
                if (pl) {
                        pl->clear_changes ();
                        pl->split_region ((*a)->region(), where);
@@ -198,17 +216,39 @@ Editor::split_regions_at (framepos_t where, RegionSelection& regions)
                a = tmp;
        }
 
+       vector<sigc::connection> region_added_connections;
+
+       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)));
+       }
+       
+       latest_regionviews.clear ();
+
        while (used_playlists.size() > 0) {
                list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
                (*i)->thaw();
                used_playlists.pop_front();
        }
 
+       for (vector<sigc::connection>::iterator c = region_added_connections.begin(); c != region_added_connections.end(); ++c) {
+               (*c).disconnect ();
+       }
+       
        commit_reversible_command ();
 
        if (frozen){
                EditorThaw(); /* Emit Signal */
        }
+
+       if (ARDOUR::Profile->get_mixbus()) {
+               //IFF we were working on selected regions, try to reinstate the other region selections that existed before the freeze/thaw.
+               _ignore_follow_edits = true;  //a split will change the region selection in mysterious ways;  its not practical or wanted to follow this edit
+               if( working_on_selection ) {
+                       selection->add ( pre_selected_regions );
+                       selection->add (latest_regionviews);  //these are the new regions created after the split
+               }
+               _ignore_follow_edits = false;
+       }
 }
 
 /** Move one extreme of the current range selection.  If more than one range is selected,
@@ -357,8 +397,8 @@ Editor::nudge_forward (bool next, bool force_playhead)
                commit_reversible_command ();
 
        } else {
-               distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
-               _session->request_locate (playhead_cursor->current_frame + distance);
+               distance = get_nudge_distance (playhead_cursor->current_frame (), next_distance);
+               _session->request_locate (playhead_cursor->current_frame () + distance);
        }
 }
 
@@ -446,10 +486,10 @@ Editor::nudge_backward (bool next, bool force_playhead)
 
        } else {
 
-               distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
+               distance = get_nudge_distance (playhead_cursor->current_frame (), next_distance);
 
-               if (playhead_cursor->current_frame > distance) {
-                       _session->request_locate (playhead_cursor->current_frame - distance);
+               if (playhead_cursor->current_frame () > distance) {
+                       _session->request_locate (playhead_cursor->current_frame () - distance);
                } else {
                        _session->goto_start();
                }
@@ -509,6 +549,60 @@ Editor::nudge_backward_capture_offset ()
        commit_reversible_command ();
 }
 
+struct RegionSelectionPositionSorter {
+        bool operator() (RegionView* a, RegionView* b) {
+                return a->region()->position() < b->region()->position();
+        }
+};
+
+void
+Editor::sequence_regions ()
+{
+       framepos_t r_end;
+       framepos_t r_end_prev;
+
+       int iCount=0;
+
+       if (!_session) {
+               return;
+       }
+
+       RegionSelection rs = get_regions_from_selection_and_entered ();
+       rs.sort(RegionSelectionPositionSorter());
+
+       if (!rs.empty()) {
+
+               begin_reversible_command (_("sequence regions"));
+               for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
+                       boost::shared_ptr<Region> r ((*i)->region());
+
+                       r->clear_changes();
+
+                       if(r->locked())
+                       {
+                               continue;
+                       }
+                       if(r->position_locked())
+                       {
+                               continue;
+                       }
+                       if(iCount>0)
+                       {
+                               r_end_prev=r_end;
+                               r->set_position(r_end_prev);
+                       }
+
+                       _session->add_command (new StatefulDiffCommand (r));
+
+                       r_end=r->position() + r->length();
+
+                       iCount++;
+               }
+               commit_reversible_command ();
+       } 
+} 
+
+
 /* DISPLAY MOTION */
 
 void
@@ -555,7 +649,7 @@ Editor::build_region_boundary_cache ()
                break;
        default:
                fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), _snap_type) << endmsg;
-               /*NOTREACHED*/
+               abort(); /*NOTREACHED*/
                return;
        }
 
@@ -772,7 +866,7 @@ Editor::get_region_boundary (framepos_t pos, int32_t dir, bool with_selection, b
 void
 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 {
-       framepos_t pos = playhead_cursor->current_frame;
+       framepos_t pos = playhead_cursor->current_frame ();
        framepos_t target;
 
        if (!_session) {
@@ -807,7 +901,7 @@ void
 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 {
        boost::shared_ptr<Region> r;
-       framepos_t pos = cursor->current_frame;
+       framepos_t pos = cursor->current_frame ();
 
        if (!_session) {
                return;
@@ -1143,8 +1237,8 @@ Editor::selected_marker_to_selection_end ()
 void
 Editor::scroll_playhead (bool forward)
 {
-       framepos_t pos = playhead_cursor->current_frame;
-       framecnt_t delta = (framecnt_t) floor (current_page_frames() / 0.8);
+       framepos_t pos = playhead_cursor->current_frame ();
+       framecnt_t delta = (framecnt_t) floor (current_page_samples() / 0.8);
 
        if (forward) {
                if (pos == max_framepos) {
@@ -1197,10 +1291,10 @@ Editor::cursor_align (bool playhead_to_edit)
                        Location* loc = find_location_from_marker (*i, ignored);
 
                        if (loc->is_mark()) {
-                               loc->set_start (playhead_cursor->current_frame);
+                               loc->set_start (playhead_cursor->current_frame ());
                        } else {
-                               loc->set (playhead_cursor->current_frame,
-                                         playhead_cursor->current_frame + loc->length());
+                               loc->set (playhead_cursor->current_frame (),
+                                         playhead_cursor->current_frame () + loc->length());
                        }
                }
        }
@@ -1209,7 +1303,7 @@ Editor::cursor_align (bool playhead_to_edit)
 void
 Editor::scroll_backward (float pages)
 {
-       framepos_t const one_page = (framepos_t) rint (_canvas_width * frames_per_unit);
+       framepos_t const one_page = (framepos_t) rint (_visible_canvas_width * samples_per_pixel);
        framepos_t const cnt = (framepos_t) floor (pages * one_page);
 
        framepos_t frame;
@@ -1225,7 +1319,7 @@ Editor::scroll_backward (float pages)
 void
 Editor::scroll_forward (float pages)
 {
-       framepos_t const one_page = (framepos_t) rint (_canvas_width * frames_per_unit);
+       framepos_t const one_page = (framepos_t) rint (_visible_canvas_width * samples_per_pixel);
        framepos_t const cnt = (framepos_t) floor (pages * one_page);
 
        framepos_t frame;
@@ -1242,8 +1336,8 @@ void
 Editor::scroll_tracks_down ()
 {
        double vert_value = vertical_adjustment.get_value() + vertical_adjustment.get_page_size();
-       if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
-               vert_value = vertical_adjustment.get_upper() - _canvas_height;
+       if (vert_value > vertical_adjustment.get_upper() - _visible_canvas_height) {
+               vert_value = vertical_adjustment.get_upper() - _visible_canvas_height;
        }
 
        vertical_adjustment.set_value (vert_value);
@@ -1260,8 +1354,8 @@ Editor::scroll_tracks_down_line ()
 {
        double vert_value = vertical_adjustment.get_value() + 60;
 
-       if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
-               vert_value = vertical_adjustment.get_upper() - _canvas_height;
+       if (vert_value > vertical_adjustment.get_upper() - _visible_canvas_height) {
+               vert_value = vertical_adjustment.get_upper() - _visible_canvas_height;
        }
 
        vertical_adjustment.set_value (vert_value);
@@ -1273,12 +1367,78 @@ Editor::scroll_tracks_up_line ()
        reset_y_origin (vertical_adjustment.get_value() - 60);
 }
 
+bool
+Editor::scroll_down_one_track ()
+{
+       TrackViewList::reverse_iterator next = track_views.rend();
+       std::pair<TimeAxisView*,double> res;
+       const double top_of_trackviews = vertical_adjustment.get_value();
+
+       for (TrackViewList::reverse_iterator t = track_views.rbegin(); t != track_views.rend(); ++t) {
+               if ((*t)->hidden()) {
+                       continue;
+               }
+
+
+               /* If this is the upper-most visible trackview, we want to display
+                  the one above it (next)
+               */
+
+               res = (*t)->covers_y_position (top_of_trackviews);
+
+               if (res.first) {
+                       break;
+               }
+               next = t;
+       }
+
+       /* 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 ()
+{
+       TrackViewList::iterator prev = track_views.end();
+       std::pair<TimeAxisView*,double> res;
+       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 */
+               res = (*t)->covers_y_position (top_of_trackviews);
+               
+               if (res.first) {
+                       break;
+               }
+
+               prev = t;
+       }
+       
+       if (prev != track_views.end()) {
+               ensure_time_axis_view_is_visible (**prev, true);
+               return true;
+       }
+
+       return false;
+}
+
 /* ZOOM */
 
 void
 Editor::tav_zoom_step (bool coarser)
 {
-       _routes->suspend_redisplay ();
+       DisplaySuspender ds;
 
        TrackViewList* ts;
 
@@ -1292,14 +1452,12 @@ Editor::tav_zoom_step (bool coarser)
                TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
                        tv->step_height (coarser);
        }
-
-       _routes->resume_redisplay ();
 }
 
 void
 Editor::tav_zoom_smooth (bool coarser, bool force_all)
 {
-       _routes->suspend_redisplay ();
+       DisplaySuspender ds;
 
        TrackViewList* ts;
 
@@ -1324,52 +1482,33 @@ Editor::tav_zoom_smooth (bool coarser, bool force_all)
                        tv->set_height (h + 5);
                }
        }
-
-       _routes->resume_redisplay ();
 }
 
-bool
-Editor::clamp_frames_per_unit (double& fpu) const
-{
-       bool clamped = false;
-       
-       if (fpu < 2.0) {
-               fpu = 2.0;
-               clamped = true;
-       }
-
-       if (max_framepos / fpu < 800) {
-               fpu = max_framepos / 800.0;
-               clamped = true;
-       }
-
-       return clamped;
-}
 
 void
 Editor::temporal_zoom_step (bool coarser)
 {
        ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
 
-       double nfpu = frames_per_unit;
+       framecnt_t nspp = samples_per_pixel;
 
        if (coarser) {
-               nfpu = min (9e6, nfpu * 1.61803399);
+               nspp *= 2;
        } else {
-               nfpu = max (1.0, nfpu / 1.61803399);
+               nspp /= 2;
        }
 
-       temporal_zoom (nfpu);
+       temporal_zoom (nspp);
 }
 
 void
-Editor::temporal_zoom (double fpu)
+Editor::temporal_zoom (framecnt_t fpp)
 {
        if (!_session) {
                return;
        }
 
-       framepos_t current_page = current_page_frames();
+       framepos_t current_page = current_page_samples();
        framepos_t current_leftmost = leftmost_frame;
        framepos_t current_rightmost;
        framepos_t current_center;
@@ -1378,24 +1517,25 @@ Editor::temporal_zoom (double fpu)
        framepos_t leftmost_after_zoom = 0;
        framepos_t where;
        bool in_track_canvas;
-       double nfpu;
+       framecnt_t nfpp;
        double l;
 
-       clamp_frames_per_unit (fpu);
-       if (fpu == frames_per_unit) {
+       if (fpp == samples_per_pixel) {
                return;
        }
 
-       nfpu = fpu;
-       
        // 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.
-       if (nfpu > 8e+08) {
-               nfpu = 8e+08;
-       }
+       //
+       // This constant represents 1 day @ 48kHz on a 1600 pixel wide display
+       // all of which is used for the editor track displays. The whole day
+       // would be 4147200000 samples, so 2592000 samples per pixel.
+
+       nfpp = min (fpp, (framecnt_t) 2592000);
+       nfpp = max ((framecnt_t) 1, nfpp);
 
-       new_page_size = (framepos_t) floor (_canvas_width * nfpu);
+       new_page_size = (framepos_t) floor (_visible_canvas_width * nfpp);
        half_page_size = new_page_size / 2;
 
        switch (zoom_focus) {
@@ -1423,7 +1563,7 @@ Editor::temporal_zoom (double fpu)
 
        case ZoomFocusPlayhead:
                /* centre playhead */
-               l = playhead_cursor->current_frame - (new_page_size * 0.5);
+               l = playhead_cursor->current_frame () - (new_page_size * 0.5);
 
                if (l < 0) {
                        leftmost_after_zoom = 0;
@@ -1439,7 +1579,7 @@ Editor::temporal_zoom (double fpu)
 
                if (!mouse_frame (where, in_track_canvas)) {
                        /* use playhead instead */
-                       where = playhead_cursor->current_frame;
+                       where = playhead_cursor->current_frame ();
 
                        if (where < half_page_size) {
                                leftmost_after_zoom = 0;
@@ -1488,7 +1628,38 @@ Editor::temporal_zoom (double fpu)
 
        // leftmost_after_zoom = min (leftmost_after_zoom, _session->current_end_frame());
 
-       reposition_and_zoom (leftmost_after_zoom, nfpu);
+       reposition_and_zoom (leftmost_after_zoom, nfpp);
+}
+
+void
+Editor::calc_extra_zoom_edges(framepos_t &start, framepos_t &end)
+{
+       /* this func helps make sure we leave a little space
+          at each end of the editor so that the zoom doesn't fit the region
+          precisely to the screen.
+       */
+
+       GdkScreen* screen = gdk_screen_get_default ();
+       const gint pixwidth = gdk_screen_get_width (screen);
+       const gint mmwidth = gdk_screen_get_width_mm (screen);
+       const double pix_per_mm = (double) pixwidth/ (double) mmwidth;
+       const double one_centimeter_in_pixels = pix_per_mm * 10.0;
+
+       const framepos_t range = end - start;
+       const framecnt_t new_fpp = (framecnt_t) ceil ((double) range / (double) _visible_canvas_width);
+       const framepos_t extra_samples = (framepos_t) floor (one_centimeter_in_pixels * new_fpp);
+
+       if (start > extra_samples) {
+               start -= extra_samples;
+       } else {
+               start = 0;
+       }
+
+       if (max_framepos - extra_samples > end) {
+               end += extra_samples;
+       } else {
+               end = max_framepos;
+       }
 }
 
 void
@@ -1517,36 +1688,11 @@ Editor::temporal_zoom_region (bool both_axes)
                tracks.insert (&((*i)->get_time_axis_view()));
        }
 
-       /* now comes an "interesting" hack ... make sure we leave a little space
-          at each end of the editor so that the zoom doesn't fit the region
-          precisely to the screen.
-       */
-
-       GdkScreen* screen = gdk_screen_get_default ();
-       gint pixwidth = gdk_screen_get_width (screen);
-       gint mmwidth = gdk_screen_get_width_mm (screen);
-       double pix_per_mm = (double) pixwidth/ (double) mmwidth;
-       double one_centimeter_in_pixels = pix_per_mm * 10.0;
-
        if ((start == 0 && end == 0) || end < start) {
                return;
        }
 
-       framepos_t range = end - start;
-       double new_fpu = (double)range / (double)_canvas_width;
-       framepos_t extra_samples = (framepos_t) floor (one_centimeter_in_pixels * new_fpu);
-
-       if (start > extra_samples) {
-               start -= extra_samples;
-       } else {
-               start = 0;
-       }
-
-       if (max_framepos - extra_samples > end) {
-               end += extra_samples;
-       } else {
-               end = max_framepos;
-       }
+       calc_extra_zoom_edges (start, end);
 
        /* if we're zooming on both axes we need to save track heights etc.
         */
@@ -1558,7 +1704,7 @@ Editor::temporal_zoom_region (bool both_axes)
        temporal_zoom_by_frame (start, end);
        
        if (both_axes) {
-               uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
+               uint32_t per_track_height = (uint32_t) floor ((_visible_canvas_height - 10.0) / tracks.size());
 
                /* set visible track heights appropriately */
 
@@ -1568,7 +1714,7 @@ Editor::temporal_zoom_region (bool both_axes)
 
                /* hide irrelevant tracks */
 
-               _routes->suspend_redisplay ();
+               DisplaySuspender ds;
 
                for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
                        if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
@@ -1576,8 +1722,6 @@ Editor::temporal_zoom_region (bool both_axes)
                        }
                }
 
-               _routes->resume_redisplay ();
-
                vertical_adjustment.set_value (0.0);
        }
 
@@ -1591,18 +1735,28 @@ Editor::zoom_to_region (bool both_axes)
 }
 
 void
-Editor::temporal_zoom_selection ()
+Editor::temporal_zoom_selection (bool both_axes)
 {
        if (!selection) return;
 
-       if (selection->time.empty()) {
-               return;
+       //if a range is selected, zoom to that
+       if (!selection->time.empty()) {
+
+               framepos_t start = selection->time.start();
+               framepos_t end = selection->time.end_frame();
+
+               calc_extra_zoom_edges(start, end);
+
+               temporal_zoom_by_frame (start, end);
+
+               if (both_axes)
+                       fit_selected_tracks();
+
+       } else {
+               temporal_zoom_region (both_axes);
        }
 
-       framepos_t start = selection->time[clicked_selection].start;
-       framepos_t end = selection->time[clicked_selection].end;
 
-       temporal_zoom_by_frame (start, end);
 }
 
 void
@@ -1611,13 +1765,28 @@ Editor::temporal_zoom_session ()
        ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_session)
 
        if (_session) {
-               framecnt_t const l = _session->current_end_frame() - _session->current_start_frame();
-               double s = _session->current_start_frame() - l * 0.01;
-               if (s < 0) {
-                       s = 0;
+               framecnt_t start = _session->current_start_frame();
+               framecnt_t end = _session->current_end_frame();
+
+               if (_session->actively_recording () ) {
+                       framepos_t cur = playhead_cursor->current_frame ();
+                       if (cur > end) {
+                               /* recording beyond the end marker; zoom out
+                                * by 5 seconds more so that if 'follow
+                                * playhead' is active we don't immediately
+                                * scroll.
+                                */
+                               end = cur + _session->frame_rate() * 5;
+                       }
+               }
+
+               if ((start == 0 && end == 0) || end < start) {
+                       return;
                }
-               framecnt_t const e = _session->current_end_frame() + l * 0.01;
-               temporal_zoom_by_frame (framecnt_t (s), e);
+
+               calc_extra_zoom_edges(start, end);
+
+               temporal_zoom_by_frame (start, end);
        }
 }
 
@@ -1632,11 +1801,11 @@ Editor::temporal_zoom_by_frame (framepos_t start, framepos_t end)
 
        framepos_t range = end - start;
 
-       double new_fpu = (double)range / (double)_canvas_width;
-
-       framepos_t new_page = (framepos_t) floor (_canvas_width * new_fpu);
-       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));
+       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));
 
        if (new_leftmost > middle) {
                new_leftmost = 0;
@@ -1646,7 +1815,7 @@ Editor::temporal_zoom_by_frame (framepos_t start, framepos_t end)
                new_leftmost = 0;
        }
 
-       reposition_and_zoom (new_leftmost, new_fpu);
+       reposition_and_zoom (new_leftmost, new_fpp);
 }
 
 void
@@ -1655,23 +1824,38 @@ Editor::temporal_zoom_to_frame (bool coarser, framepos_t frame)
        if (!_session) {
                return;
        }
-       double range_before = frame - leftmost_frame;
-       double new_fpu;
 
-       new_fpu = frames_per_unit;
+       framecnt_t range_before = frame - leftmost_frame;
+       framecnt_t new_spp;
 
        if (coarser) {
-               new_fpu *= 1.61803399;
-               range_before *= 1.61803399;
+               if (samples_per_pixel <= 1) {
+                       new_spp = 2;
+               } else {
+                       new_spp = samples_per_pixel + (samples_per_pixel/2);
+               }
+               range_before += range_before/2;
        } else {
-               new_fpu = max(1.0,(new_fpu/1.61803399));
-               range_before /= 1.61803399;
+               if (samples_per_pixel >= 1) {
+                       new_spp = samples_per_pixel - (samples_per_pixel/2);
+               } else {
+                       /* could bail out here since we cannot zoom any finer,
+                          but leave that to the equality test below
+                       */
+                       new_spp = samples_per_pixel;
+               }
+
+               range_before -= range_before/2;
        }
 
-       if (new_fpu == frames_per_unit)  {
+       if (new_spp == samples_per_pixel)  {
                return;
        }
 
+       /* 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) {
@@ -1682,7 +1866,7 @@ Editor::temporal_zoom_to_frame (bool coarser, framepos_t frame)
                new_leftmost = 0;
        }
 
-       reposition_and_zoom (new_leftmost, new_fpu);
+       reposition_and_zoom (new_leftmost, new_spp);
 }
 
 
@@ -1775,6 +1959,35 @@ Editor::add_location_from_playhead_cursor ()
        add_location_mark (_session->audible_frame());
 }
 
+void
+Editor::remove_location_at_playhead_cursor ()
+{
+       if (_session) {
+
+               //set up for undo
+               _session->begin_reversible_command (_("remove marker"));
+               XMLNode &before = _session->locations()->get_state();
+               bool removed = false;
+
+               //find location(s) at this time
+               Locations::LocationList locs;
+               _session->locations()->find_all_between (_session->audible_frame(), _session->audible_frame()+1, locs, Location::Flags(0));
+               for (Locations::LocationList::iterator i = locs.begin(); i != locs.end(); ++i) {
+                       if ((*i)->is_mark()) {
+                               _session->locations()->remove (*i);
+                               removed = true;
+                       }
+               }
+               
+               //store undo
+               if (removed) {
+                       XMLNode &after = _session->locations()->get_state();
+                       _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
+                       _session->commit_reversible_command ();
+               }
+       }
+}
+
 /** Add a range marker around each selected region */
 void
 Editor::add_locations_from_region ()
@@ -1847,7 +2060,7 @@ Editor::jump_forward_to_mark ()
                return;
        }
 
-       framepos_t pos = _session->locations()->first_mark_after (playhead_cursor->current_frame);
+       framepos_t pos = _session->locations()->first_mark_after (playhead_cursor->current_frame());
 
        if (pos < 0) {
                return;
@@ -1863,7 +2076,7 @@ Editor::jump_backward_to_mark ()
                return;
        }
 
-       framepos_t pos = _session->locations()->first_mark_before (playhead_cursor->current_frame);
+       framepos_t pos = _session->locations()->first_mark_before (playhead_cursor->current_frame());
 
        if (pos < 0) {
                return;
@@ -1907,15 +2120,7 @@ Editor::clear_ranges ()
                _session->begin_reversible_command (_("clear ranges"));
                XMLNode &before = _session->locations()->get_state();
 
-               Location * looploc = _session->locations()->auto_loop_location();
-               Location * punchloc = _session->locations()->auto_punch_location();
-               Location * sessionloc = _session->locations()->session_range_location();
-
                _session->locations()->clear_ranges ();
-               // re-add these
-               if (looploc) _session->locations()->add (looploc);
-               if (punchloc) _session->locations()->add (punchloc);
-               if (sessionloc) _session->locations()->add (sessionloc);
 
                XMLNode &after = _session->locations()->get_state();
                _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
@@ -1959,93 +2164,6 @@ Editor::unhide_ranges ()
 
 /* INSERT/REPLACE */
 
-void
-Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
-{
-       double wx, wy;
-       double cx, cy;
-       framepos_t where;
-       RouteTimeAxisView *rtv = 0;
-       boost::shared_ptr<Playlist> playlist;
-
-       track_canvas->window_to_world (x, y, wx, wy);
-
-       GdkEvent event;
-       event.type = GDK_BUTTON_RELEASE;
-       event.button.x = wx;
-       event.button.y = wy;
-
-       where = event_frame (&event, &cx, &cy);
-
-       if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
-               /* clearly outside canvas area */
-               return;
-       }
-
-       std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
-       if (tv.first == 0) {
-               return;
-       }
-
-       if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
-               return;
-       }
-
-       if ((playlist = rtv->playlist()) == 0) {
-               return;
-       }
-
-       snap_to (where);
-
-       begin_reversible_command (_("insert dragged region"));
-       playlist->clear_changes ();
-       playlist->add_region (RegionFactory::create (region, true), where, 1.0);
-       _session->add_command(new StatefulDiffCommand (playlist));
-       commit_reversible_command ();
-}
-
-void
-Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y)
-{
-       double wx, wy;
-       double cx, cy;
-       RouteTimeAxisView *dest_rtv = 0;
-       RouteTimeAxisView *source_rtv = 0;
-
-       track_canvas->window_to_world (x, y, wx, wy);
-       wx += horizontal_position ();
-       wy += vertical_adjustment.get_value();
-
-       GdkEvent event;
-       event.type = GDK_BUTTON_RELEASE;
-       event.button.x = wx;
-       event.button.y = wy;
-
-       event_frame (&event, &cx, &cy);
-
-       std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
-       if (tv.first == 0) {
-               return;
-       }
-
-       if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
-               return;
-       }
-
-       /* use this drag source to add underlay to a track. But we really don't care
-          about the Route, only the view of the route, so find it first */
-       for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
-               if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
-                       continue;
-               }
-
-               if(source_rtv->route() == route && source_rtv != dest_rtv) {
-                       dest_rtv->add_underlay(source_rtv->view());
-                       break;
-               }
-       }
-}
-
 void
 Editor::insert_region_list_selection (float times)
 {
@@ -2078,6 +2196,9 @@ Editor::insert_region_list_selection (float times)
        begin_reversible_command (_("insert region"));
        playlist->clear_changes ();
        playlist->add_region ((RegionFactory::create (region, true)), get_preferred_edit_position(), times);
+       if (Config->get_edit_mode() == Ripple)
+               playlist->ripple (get_preferred_edit_position(), region->length() * times, boost::shared_ptr<Region>());
+
        _session->add_command(new StatefulDiffCommand (playlist));
        commit_reversible_command ();
 }
@@ -2180,7 +2301,7 @@ Editor::get_preroll ()
 void
 Editor::maybe_locate_with_edit_preroll ( framepos_t location )
 {
-       if ( _session->transport_rolling() || !Config->get_always_play_range() )
+       if ( _session->transport_rolling() || !Config->get_follow_edits() || _ignore_follow_edits )
                return;
 
        location -= get_preroll();
@@ -2242,8 +2363,8 @@ Editor::loop_location (Location& location)
                tll->set (location.start(), location.end());
 
                // enable looping, reposition and start rolling
-               _session->request_play_loop (true);
                _session->request_locate (tll->start(), true);
+               _session->request_play_loop (true);
        }
 }
 
@@ -2701,8 +2822,7 @@ Editor::separate_regions_between (const TimeSelection& ts)
        }
 
        if (in_command) {
-               selection->set (new_selection);
-               set_mouse_mode (MouseObject);
+//             selection->set (new_selection);
 
                commit_reversible_command ();
        }
@@ -3461,10 +3581,8 @@ Editor::freeze_thread ()
        /* create event pool because we may need to talk to the session */
        SessionEvent::create_per_thread_pool ("freeze events", 64);
        /* create per-thread buffers for process() tree to use */
-       current_interthread_info->process_thread.get_buffers ();
        clicked_routeview->audio_track()->freeze_me (*current_interthread_info);
        current_interthread_info->done = true;
-       current_interthread_info->process_thread.drop_buffers();
        return 0;
 }
 
@@ -3481,7 +3599,7 @@ Editor::freeze_route ()
        
        /* wait for just a little while, because the above call is asynchronous */
 
-       ::usleep (250000);
+       Glib::usleep (250000);
 
        if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
                return;
@@ -3619,7 +3737,14 @@ Editor::bounce_range_selection (bool replace, bool enable_processing)
 void
 Editor::delete_ ()
 {
-       cut_copy (Delete);
+       //special case: if the user is pointing in the editor/mixer strip, they may be trying to delete a plugin.
+       //we need this because the editor-mixer strip is in the editor window, so it doesn't get the bindings from the mix window
+       bool deleted = false;
+       if ( current_mixer_strip && current_mixer_strip == MixerStrip::entered_mixer_strip() )
+               deleted = current_mixer_strip->delete_processors ();
+
+       if (!deleted)
+               cut_copy (Delete);
 }
 
 /** Cut selected regions, automation points or a time range */
@@ -3641,30 +3766,15 @@ Editor::copy ()
 bool
 Editor::can_cut_copy () const
 {
-       switch (effective_mouse_mode()) {
-
-       case MouseObject:
-               if (!selection->regions.empty() || !selection->points.empty()) {
-                       return true;
-               }
-               break;
-
-       case MouseRange:
-               if (!selection->time.empty()) {
-                       return true;
-               }
-               break;
-
-       default:
-               break;
-       }
+       if (!selection->time.empty() || !selection->regions.empty() || !selection->points.empty())
+               return true;
 
        return false;
 }
 
 
 /** Cut, copy or clear selected regions, automation points or a time range.
- * @param op Operation (Cut, Copy or Clear)
+ * @param op Operation (Delete, Cut, Copy or Clear)
  */
 void
 Editor::cut_copy (CutCopyOp op)
@@ -3700,7 +3810,7 @@ Editor::cut_copy (CutCopyOp op)
                }
        }
 
-       if ( op != Clear )  //"Delete" doesn't change copy/paste buf
+       if ( op != Delete )  //"Delete" doesn't change copy/paste buf
                cut_buffer->clear ();
 
        if (entered_marker) {
@@ -3723,120 +3833,75 @@ Editor::cut_copy (CutCopyOp op)
                switch (effective_mouse_mode()) {
                case MouseObject:
                case MouseRange:
+                       begin_reversible_command (opname + ' ' + X_("MIDI"));
                        cut_copy_midi (op);
+                       commit_reversible_command ();
                        break;
                default:
                        break;
                }
 
-       } else {
-
-       RegionSelection rs; 
-
-       /* we only want to cut regions if some are selected */
-
-       if (!selection->regions.empty()) {
-               rs = selection->regions;
+               return;
        }
 
-       switch (effective_mouse_mode()) {
-/*
- *             case MouseGain: {
-                       //find regions's gain line
-                       AudioRegionView *rview = dynamic_cast<AudioRegionView*>(clicked_regionview);
-                               AutomationTimeAxisView *tview = dynamic_cast<AutomationTimeAxisView*>(clicked_trackview);
-                       if (rview) {
-                               AudioRegionGainLine *line = rview->get_gain_line();
-                               if (!line) break;
-                               
-                               //cut region gain points in the selection
-                               AutomationList& alist (line->the_list());
-                               XMLNode &before = alist.get_state();
-                               AutomationList* what_we_got = 0;
-                               if ((what_we_got = alist.cut (selection->time.front().start - rview->audio_region()->position(), selection->time.front().end - rview->audio_region()->position())) != 0) {
-                                       session->add_command(new MementoCommand<AutomationList>(alist, &before, &alist.get_state()));
-                                       delete what_we_got;
-                                       what_we_got = 0;
-                               }
-                               
-                               rview->set_envelope_visible(true);
-                               rview->audio_region()->set_envelope_active(true);
-                               
-                       } else if (tview) {
-                               AutomationLine *line = *(tview->lines.begin());
-                               if (!line) break;
-                               
-                               //cut auto points in the selection
-                               AutomationList& alist (line->the_list());
-                               XMLNode &before = alist.get_state();
-                               AutomationList* what_we_got = 0;
-                               if ((what_we_got = alist.cut (selection->time.front().start, selection->time.front().end)) != 0) {
-                                       session->add_command(new MementoCommand<AutomationList>(alist, &before, &alist.get_state()));
-                                       delete what_we_got;
-                                       what_we_got = 0;
-                               }               
-                       } else
-                               break;
-               } break;
-*/                     
-               case MouseObject: 
-               case MouseRange:
-                       if (!rs.empty() || !selection->points.empty()) {
-                               begin_reversible_command (opname + _(" objects"));
-
-                               if (!rs.empty()) {
-                                       cut_copy_regions (op, rs);
-                                       
-                                       if (op == Cut || op == Delete) {
-                                               selection->clear_regions ();
-                                       }
-                               }
-
-                               if (!selection->points.empty()) {
-                                       cut_copy_points (op);
+       bool did_edit = false;
 
-                                       if (op == Cut || op == Delete) {
-                                               selection->clear_points ();
-                                       }
-                               }
+       if (!selection->regions.empty() || !selection->points.empty()) {
+               begin_reversible_command (opname + ' ' + _("objects"));
+               did_edit = true;
 
-                               commit_reversible_command ();   
-                               break;
-                       } 
+               if (!selection->regions.empty()) {
+                       cut_copy_regions (op, selection->regions);
                        
-                       if (selection->time.empty()) {
-                               framepos_t start, end;
-                               if (!get_edit_op_range (start, end)) {
-                                       return;
-                               }
-                               selection->set (start, end);
+                       if (op == Cut || op == Delete) {
+                               selection->clear_regions ();
                        }
-                               
-                       begin_reversible_command (opname + _(" range"));
-                       cut_copy_ranges (op);
-                       commit_reversible_command ();
+               }
+               
+               if (!selection->points.empty()) {
+                       cut_copy_points (op);
                        
                        if (op == Cut || op == Delete) {
-                               selection->clear_time ();
+                               selection->clear_points ();
                        }
+               }
+       } else if (selection->time.empty()) {
+               framepos_t start, end;
+               /* no time selection, see if we can get an edit range
+                  and use that.
+               */
+               if (get_edit_op_range (start, end)) {
+                       selection->set (start, end);
+               }
+       } else if (!selection->time.empty()) {
+               begin_reversible_command (opname + ' ' + _("range"));
 
-                       break;
-                       
-               default:
-                       break;
+               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 ();   
+       }
+       
        if (op == Delete || op == Cut || op == Clear) {
                _drags->abort ();
        }
 }
 
 struct AutomationRecord {
-       AutomationRecord () : state (0) {}
-       AutomationRecord (XMLNode* s) : state (s) {}
+       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
 };
 
@@ -3859,12 +3924,13 @@ Editor::cut_copy_points (CutCopyOp op)
 
        /* Go through all selected points, making an AutomationRecord for each distinct AutomationList */
        for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
-               boost::shared_ptr<AutomationList> al = (*i)->line().the_list();
+               const AutomationLine&                   line = (*i)->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
                           taking a copy of its current state, in case this is needed for undo later.
                        */
-                       lists[al] = AutomationRecord (&al->get_state ());
+                       lists[al] = AutomationRecord (&al->get_state (), &line);
                }
        }
 
@@ -3872,22 +3938,33 @@ Editor::cut_copy_points (CutCopyOp op)
                /* This operation will involve putting things in the cut buffer, so create an empty
                   ControlList for each of our source lists to put the cut buffer data in.
                */
+               framepos_t start = std::numeric_limits<framepos_t>::max();
                for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
                        i->second.copy = i->first->create (i->first->parameter ());
+
+                       /* Calculate earliest start position of any point in selection. */
+                       start = std::min(start, i->second.line->session_position(i->first->begin()));
                }
 
                /* Add all selected points to the relevant copy ControlLists */
                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 ();
-                       lists[al].copy->add ((*j)->when, (*j)->value);
+                       lists[al].copy->fast_simple_add ((*j)->when, (*j)->value);
                }
 
+               /* Snap start time backwards, so copy/paste is snap aligned. */
+               snap_to(start, RoundDownMaybe);
+
                for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
-                       /* Correct this copy list so that it starts at time 0 */
-                       double const start = i->second.copy->front()->when;
+                       /* Correct this copy list so that it is relative to the earliest
+                          start time, so relative ordering between points is preserved
+                          when copying from several lists. */
+                       const AutomationLine* line        = i->second.line;
+                       const double          line_offset = line->time_converter().from(start);
+
                        for (AutomationList::iterator j = i->second.copy->begin(); j != i->second.copy->end(); ++j) {
-                               (*j)->when -= start;
+                               (*j)->when -= line_offset;
                        }
 
                        /* And add it to the cut buffer */
@@ -3924,12 +4001,22 @@ void
 Editor::cut_copy_midi (CutCopyOp op)
 {
        for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
-               MidiRegionView* mrv = *i;
-               mrv->cut_copy_clear (op);
-       }
-}
+               MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(*i);
+               if (mrv) {
+                       mrv->cut_copy_clear (op);
 
+                       /* XXX: not ideal, as there may be more than one track involved in the selection */
+                       _last_cut_copy_source_track = &mrv->get_time_axis_view();
+               }
+       }
 
+       if (!selection->points.empty()) {
+               cut_copy_points (op);
+               if (op == Cut || op == Delete) {
+                       selection->clear_points ();
+               }
+       }
+}
 
 struct lt_playlist {
     bool operator () (const PlaylistState& a, const PlaylistState& b) {
@@ -3954,10 +4041,11 @@ Editor::remove_clicked_region ()
 
        boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
 
-       begin_reversible_command (_("remove region"));
        playlist->clear_changes ();
        playlist->clear_owned_changes ();
        playlist->remove_region (clicked_regionview->region());
+       if (Config->get_edit_mode() == Ripple)
+               playlist->ripple (clicked_regionview->region()->position(), -clicked_regionview->region()->length(), boost::shared_ptr<Region>());
 
        /* We might have removed regions, which alters other regions' layering_index,
           so we need to do a recursive diff here.
@@ -4020,6 +4108,9 @@ Editor::remove_selected_regions ()
                playlist->clear_owned_changes ();
                playlist->freeze ();
                playlist->remove_region (*rl);
+               if (Config->get_edit_mode() == Ripple)
+                       playlist->ripple ((*rl)->position(), -(*rl)->length(), boost::shared_ptr<Region>());
+
        }
 
        vector<boost::shared_ptr<Playlist> >::iterator pl;
@@ -4149,12 +4240,16 @@ Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
                switch (op) {
                case Delete:
                        pl->remove_region (r);
+                       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);
                        pl->remove_region (r);
+                       if (Config->get_edit_mode() == Ripple)
+                               pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
                        break;
 
                case Copy:
@@ -4163,7 +4258,9 @@ Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
                        break;
 
                case Clear:
-                       pl->remove_region (r);  
+                       pl->remove_region (r);
+                       if (Config->get_edit_mode() == Ripple)
+                               pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
                        break;
                }
 
@@ -4260,14 +4357,8 @@ Editor::paste_internal (framepos_t position, float times)
 {
         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("apparent paste position is %1\n", position));
 
-       if (internal_editing()) {
-               if (cut_buffer->midi_notes.empty()) {
-                       return;
-               }
-       } else {
-               if (cut_buffer->empty()) {
-                       return;
-               }
+       if (cut_buffer->empty(internal_editing())) {
+               return;
        }
 
        if (position == max_framepos) {
@@ -4275,45 +4366,90 @@ Editor::paste_internal (framepos_t position, float times)
                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("preferred edit position is %1\n", position));
        }
 
-       TrackViewList ts;
-       TrackViewList::iterator i;
-       size_t nth;
+       if (position == last_paste_pos) {
+               /* repeated paste in the same position */
+               ++paste_count;
+       } else {
+               /* paste in new location, reset repeated paste state */
+               paste_count = 0;
+               last_paste_pos = position;
+       }
 
        /* get everything in the correct order */
 
-       if (_edit_point == Editing::EditAtMouse && entered_track) {
-               /* With the mouse edit point, paste onto the track under the mouse */
-               ts.push_back (entered_track);
-       } else if (!selection->tracks.empty()) {
-               /* Otherwise, if there are some selected tracks, paste to them */
+       TrackViewList ts;
+       if (!selection->tracks.empty()) {
+               /* If there is a track selection, paste into exactly those tracks and
+                  only those tracks.  This allows the user to be explicit and override
+                  the below "do the reasonable thing" logic. */
                ts = selection->tracks.filter_to_unique_playlists ();
                sort_track_selection (ts);
-       } else if (_last_cut_copy_source_track) {
-               /* Otherwise paste to the track that the cut/copy came from;
-                  see discussion in mantis #3333.
-               */
-               ts.push_back (_last_cut_copy_source_track);
+       } else {
+               /* Figure out which track to base the paste at. */
+               TimeAxisView* base_track = NULL;
+               if (_edit_point == Editing::EditAtMouse && entered_track) {
+                       /* With the mouse edit point, paste onto the track under the mouse. */
+                       base_track = entered_track;
+               } else if (_edit_point == Editing::EditAtMouse && entered_regionview) {
+                       /* With the mouse edit point, paste onto the track of the region under the mouse. */
+                       base_track = &entered_regionview->get_time_axis_view();
+               } else if (_last_cut_copy_source_track) {
+                       /* Paste to the track that the cut/copy came from (see mantis #333). */
+                       base_track = _last_cut_copy_source_track;
+               } else {
+                       /* This is "impossible" since we've copied... well, do nothing. */
+                       return;
+               }
+
+               /* Walk up to parent if necessary, so base track is a route. */
+               while (base_track->get_parent()) {
+                       base_track = base_track->get_parent();
+               }
+
+               /* Add base track and all tracks below it.  The paste logic will select
+                  the appropriate object types from the cut buffer in relative order. */
+               for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+                       if ((*i)->order() >= base_track->order()) {
+                               ts.push_back(*i);
+                       }
+               }
+
+               /* Sort tracks so the nth track of type T will pick the nth object of type T. */
+               sort_track_selection (ts);
+
+               /* Add automation children of each track in order, for pasting several lines. */
+               for (TrackViewList::iterator i = ts.begin(); i != ts.end();) {
+                       /* Add any automation children for pasting several lines */
+                       RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*i++);
+                       if (!rtv) {
+                               continue;
+                       }
+
+                       typedef RouteTimeAxisView::AutomationTracks ATracks;
+                       const ATracks& atracks = rtv->automation_tracks();
+                       for (ATracks::const_iterator a = atracks.begin(); a != atracks.end(); ++a) {
+                               i = ts.insert(i, a->second.get());
+                               ++i;
+                       }
+               }
+
+               /* We now have a list of trackviews starting at base_track, including
+                  automation children, in the order shown in the editor, e.g. R1,
+                  R1.A1, R1.A2, R2, R2.A1, ... */
        }
 
        if (internal_editing ()) {
 
                /* undo/redo is handled by individual tracks/regions */
 
-               for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
+               RegionSelection rs;
+               get_regions_at (rs, position, ts);
 
-                       RegionSelection rs;
-                       RegionSelection::iterator r;
-                       MidiNoteSelection::iterator cb;
-
-                       get_regions_at (rs, position, ts);
-
-                       for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
-                            cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
-                               MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
-                               if (mrv) {
-                                       mrv->paste (position, times, **cb);
-                                       ++cb;
-                               }
+               ItemCounts counts;
+               for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
+                       MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
+                       if (mrv) {
+                               mrv->paste (position, paste_count, times, *cut_buffer, counts);
                        }
                }
 
@@ -4323,8 +4459,9 @@ Editor::paste_internal (framepos_t position, float times)
 
                begin_reversible_command (Operations::paste);
 
-               for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
-                       (*i)->paste (position, times, *cut_buffer, nth);
+               ItemCounts counts;
+               for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
+                       (*i)->paste (position, paste_count, times, *cut_buffer, counts);
                }
 
                commit_reversible_command ();
@@ -4424,14 +4561,14 @@ Editor::reset_point_selection ()
 void
 Editor::center_playhead ()
 {
-       float page = _canvas_width * frames_per_unit;
-       center_screen_internal (playhead_cursor->current_frame, page);
+       float const page = _visible_canvas_width * samples_per_pixel;
+       center_screen_internal (playhead_cursor->current_frame (), page);
 }
 
 void
 Editor::center_edit_point ()
 {
-       float page = _canvas_width * frames_per_unit;
+       float const page = _visible_canvas_width * samples_per_pixel;
        center_screen_internal (get_preferred_edit_position(), page);
 }
 
@@ -4712,8 +4849,8 @@ Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv
        vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
        v.push_back (selected);
 
-       framepos_t pos_frames = mrv.midi_region()->position() - mrv.midi_region()->start();
-       double     pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
+       framepos_t          pos_frames = mrv.midi_region()->position() - mrv.midi_region()->start();
+       Evoral::MusicalTime pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
 
        return op (mrv.midi_region()->model(), pos_beats, v);
 }
@@ -4826,7 +4963,7 @@ Editor::quantize_region ()
        qd->hide ();
 
        if (r == Gtk::RESPONSE_OK) {
-               Quantize quant (*_session, qd->snap_start(), qd->snap_end(),
+               Quantize quant (qd->snap_start(), qd->snap_end(),
                                qd->start_grid_size(), qd->end_grid_size(),
                                qd->strength(), qd->swing(), qd->threshold());
 
@@ -4851,7 +4988,7 @@ Editor::insert_patch_change (bool from_context)
        */
        MidiRegionView* first = dynamic_cast<MidiRegionView*> (rs.front ());
 
-       Evoral::PatchChange<Evoral::MusicalTime> empty (0, 0, 0, 0);
+       Evoral::PatchChange<Evoral::MusicalTime> empty (Evoral::MusicalTime(), 0, 0, 0);
         PatchChangeDialog d (0, _session, empty, first->instrument_info(), Gtk::Stock::ADD);
 
        if (d.run() == RESPONSE_CANCEL) {
@@ -5205,6 +5342,22 @@ Editor::toggle_solo_isolate ()
 {
 }
 
+
+void
+Editor::fade_range ()
+{
+       TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
+
+       begin_reversible_command (_("fade range"));
+
+       for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
+               (*i)->fade_range (selection->time);
+       }
+
+       commit_reversible_command ();
+}
+
+
 void
 Editor::set_fade_length (bool in)
 {
@@ -5508,7 +5661,7 @@ Editor::set_playhead_cursor ()
                }
        }
 
-       if ( Config->get_always_play_range() )
+       if ( Config->get_follow_edits() )
                cancel_time_selection();
 }
 
@@ -5566,7 +5719,7 @@ Editor::select_next_route()
 
        selection->set(current);
 
-       ensure_track_visible(current);
+       ensure_time_axis_view_is_visible (*current, false);
 }
 
 void
@@ -5597,37 +5750,7 @@ Editor::select_prev_route()
 
        selection->set (current);
 
-       ensure_track_visible(current);
-}
-
-void
-Editor::ensure_track_visible(TimeAxisView *track)
-{
-       if (track->hidden())
-               return;
-
-       double const current_view_min_y = vertical_adjustment.get_value();
-       double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
-
-       double const track_min_y = track->y_position ();
-       double const track_max_y = track->y_position () + track->effective_height ();
-
-       if (track_min_y >= current_view_min_y &&
-           track_max_y <= current_view_max_y) {
-               return;
-       }
-
-       double new_value;
-
-       if (track_min_y < current_view_min_y) {
-               // Track is above the current view
-               new_value = track_min_y;
-       } else {
-               // Track is below the current view
-               new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
-       }
-
-       vertical_adjustment.set_value(new_value);
+       ensure_time_axis_view_is_visible (*current, false);
 }
 
 void
@@ -5643,8 +5766,8 @@ Editor::set_loop_from_selection (bool play)
        set_loop_range (start, end,  _("set loop range from selection"));
 
        if (play) {
-               _session->request_play_loop (true);
                _session->request_locate (start, true);
+               _session->request_play_loop (true);
        }
 }
 
@@ -5665,8 +5788,8 @@ Editor::set_loop_from_edit_range (bool play)
        set_loop_range (start, end,  _("set loop range from edit range"));
 
        if (play) {
-               _session->request_play_loop (true);
                _session->request_locate (start, true);
+               _session->request_play_loop (true);
        }
 }
 
@@ -5694,8 +5817,8 @@ Editor::set_loop_from_region (bool play)
        set_loop_range (start, end, _("set loop range from region"));
 
        if (play) {
-               _session->request_play_loop (true);
                _session->request_locate (start, true);
+               _session->request_play_loop (true);
        }
 }
 
@@ -6372,11 +6495,14 @@ Editor::tab_to_transient (bool forward)
 void
 Editor::playhead_forward_to_grid ()
 {
-       if (!_session) return;
-       framepos_t pos = playhead_cursor->current_frame;
+       if (!_session) {
+               return;
+       }
+       
+       framepos_t pos = playhead_cursor->current_frame ();
        if (pos < max_framepos - 1) {
                pos += 2;
-               snap_to_internal (pos, 1, false);
+               snap_to_internal (pos, RoundUpAlways, false);
                _session->request_locate (pos);
        }
 }
@@ -6385,11 +6511,14 @@ Editor::playhead_forward_to_grid ()
 void
 Editor::playhead_backward_to_grid ()
 {
-       if (!_session) return;
-       framepos_t pos = playhead_cursor->current_frame;
+       if (!_session) {
+               return;
+       }
+       
+       framepos_t pos = playhead_cursor->current_frame ();
        if (pos > 2) {
                pos -= 2;
-               snap_to_internal (pos, -1, false);
+               snap_to_internal (pos, RoundDownAlways, false);
                _session->request_locate (pos);
        }
 }
@@ -6448,12 +6577,13 @@ Editor::remove_tracks ()
 
        for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
                RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
-               if (rtv) {
-                       if (rtv->is_track()) {
-                               ntracks++;
-                       } else {
-                               nbusses++;
-                       }
+               if (!rtv) {
+                       continue;
+               }
+               if (rtv->is_track()) {
+                       ntracks++;
+               } else {
+                       nbusses++;
                }
                routes.push_back (rtv->_route);
 
@@ -6484,6 +6614,7 @@ edit your ardour.rc file to set the\n\
                return;
        }
 
+       // XXX should be using gettext plural forms, maybe?
        if (ntracks > 1) {
                trackstr = _("tracks");
        } else {
@@ -6510,7 +6641,7 @@ edit your ardour.rc file to set the\n\
                }
        } else if (nbusses) {
                prompt  = string_compose (_("Do you really want to remove %1 %2?\n\n"
-                                           "This action cannot be undon, and the session file will be overwritten"),
+                                           "This action cannot be undone, and the session file will be overwritten"),
                                          nbusses, busstr);
        }
 
@@ -6534,8 +6665,12 @@ edit your ardour.rc file to set the\n\
                return;
        }
 
-       for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
-               _session->remove_route (*x);
+       {
+               Session::StateProtector sp (_session);
+               DisplaySuspender ds;
+               for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
+                       _session->remove_route (*x);
+               }
        }
 }
 
@@ -6715,6 +6850,7 @@ Editor::fit_selected_tracks ()
                         }
                 }
         }
+
 }
 
 void
@@ -6737,7 +6873,13 @@ Editor::fit_tracks (TrackViewList & tracks)
                ++visible_tracks;
        }
 
-       uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / visible_tracks);
+       /* compute the per-track height from:
+
+          total canvas visible height - 
+                 height that will be taken by visible children of selected
+                 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)) {
@@ -6760,8 +6902,6 @@ Editor::fit_tracks (TrackViewList & tracks)
                }
        }
 
-       /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
-
        bool prev_was_selected = false;
        bool is_selected = tracks.contains (all.front());
        bool next_is_selected;
@@ -6799,10 +6939,12 @@ Editor::fit_tracks (TrackViewList & tracks)
           request signal handler will cause the vertical adjustment setting to fail
        */
 
-       controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
+       controls_layout.property_height () = _full_canvas_height;
        vertical_adjustment.set_value (first_y_pos);
 
        redo_visual_stack.push_back (current_visual_state (true));
+
+       visible_tracks_selector.set_text (_("Sel"));
 }
 
 void
@@ -6975,3 +7117,83 @@ Editor::toggle_midi_input_active (bool flip_others)
        
        _session->set_exclusive_input_active (rl, onoff, flip_others);
 }
+
+void
+Editor::lock ()
+{
+       if (!lock_dialog) {
+               lock_dialog = new Gtk::Dialog (string_compose (_("%1: Locked"), PROGRAM_NAME), true);
+
+               Gtk::Image* padlock = manage (new Gtk::Image (ARDOUR_UI_UTILS::get_icon ("padlock_closed")));
+               lock_dialog->get_vbox()->pack_start (*padlock);
+
+               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);
+       }
+       
+#ifdef __APPLE__
+       /* The global menu bar continues to be accessible to applications
+          with modal dialogs, which means that we need to desensitize
+          all items in the menu bar. Since those items are really just
+          proxies for actions, that means disabling all actions.
+       */
+       ActionManager::disable_all_actions ();
+#endif
+       lock_dialog->present ();
+}
+
+void
+Editor::unlock ()
+{
+       lock_dialog->hide ();
+       
+#ifdef __APPLE__
+       ActionManager::pop_action_state ();
+#endif 
+
+       if (ARDOUR_UI::config()->get_lock_gui_after_seconds()) {
+               start_lock_event_timing ();
+       }
+}
+
+void
+Editor::bring_in_callback (Gtk::Label* label, uint32_t n, uint32_t total, string name)
+{
+       Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&Editor::update_bring_in_message, this, label, n, total, name));
+}
+
+void
+Editor::update_bring_in_message (Gtk::Label* label, uint32_t n, uint32_t total, string name)
+{
+       label->set_text (string_compose ("Copying %1, %2 of %3", name, n, total));
+       Gtkmm2ext::UI::instance()->flush_pending ();
+}
+
+void
+Editor::bring_all_sources_into_session ()
+{
+       if (!_session) {
+               return;
+       }
+
+       Gtk::Label msg;
+       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 ();
+
+       cerr << " Do it\n";
+
+       _session->bring_all_sources_into_session (boost::bind (&Editor::bring_in_callback, this, &msg, _1, _2, _3));
+}