fix zoom focus issue that was messing up zoom changes
[ardour.git] / gtk2_ardour / editor.cc
index 4a358ff114778b1adc14ff59b9ea60d08f97f041..ab2b96439a824e83bc78ad29d00f98bd20fde5b7 100644 (file)
@@ -44,6 +44,7 @@
 #include "pbd/memento_command.h"
 #include "pbd/unknown_type.h"
 #include "pbd/unwind.h"
+#include "pbd/stacktrace.h"
 
 #include <glibmm/miscutils.h>
 #include <gtkmm/image.h>
 #include "gtkmm2ext/cell_renderer_pixbuf_toggle.h"
 
 #include "ardour/audio_track.h"
-#include "ardour/audioplaylist.h"
+#include "ardour/audioengine.h"
 #include "ardour/audioregion.h"
 #include "ardour/location.h"
-#include "ardour/midi_region.h"
-#include "ardour/plugin_manager.h"
 #include "ardour/profile.h"
 #include "ardour/route_group.h"
-#include "ardour/session_directory.h"
-#include "ardour/session_route.h"
-#include "ardour/session_state_utils.h"
+#include "ardour/session_playlists.h"
 #include "ardour/tempo.h"
 #include "ardour/utils.h"
-#include "ardour/session_playlists.h"
-#include "ardour/audioengine.h"
+
+#include "canvas/debug.h"
+#include "canvas/text.h"
 
 #include "control_protocol/control_protocol.h"
 
@@ -86,9 +84,6 @@
 #include "audio_time_axis.h"
 #include "automation_time_axis.h"
 #include "bundle_manager.h"
-#include "button_joiner.h"
-#include "canvas-noevent-text.h"
-#include "canvas_impl.h"
 #include "crossfade_edit.h"
 #include "debug.h"
 #include "editing.h"
 #include "rhythm_ferret.h"
 #include "selection.h"
 #include "sfdb_ui.h"
-#include "simpleline.h"
 #include "tempo_lines.h"
 #include "time_axis_view.h"
 #include "utils.h"
 
 #include "i18n.h"
 
-#ifdef WITH_CMT
-#include "imageframe_socket_handler.h"
-#endif
-
 using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
@@ -214,24 +204,22 @@ static const gchar *_rb_opt_strings[] = {
 };
 #endif
 
-void
-show_me_the_size (Requisition* r, const char* what)
-{
-       cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
-}
-
-#ifdef GTKOSX
 static void
 pane_size_watcher (Paned* pane)
 {
        /* if the handle of a pane vanishes into (at least) the tabs of a notebook,
-          it is no longer accessible. so stop that. this doesn't happen on X11,
-          just the quartz backend.
+          it is:
+
+             X: hard to access
+             Quartz: impossible to access
+             
+          so stop that by preventing it from ever getting too narrow. 35
+          pixels is basically a rough guess at the tab width.
 
           ugh.
        */
 
-       int max_width_of_lhs = GTK_WIDGET(pane->gobj())->allocation.width - 25;
+       int max_width_of_lhs = GTK_WIDGET(pane->gobj())->allocation.width - 35;
 
        gint pos = pane->get_position ();
 
@@ -239,7 +227,6 @@ pane_size_watcher (Paned* pane)
                pane->set_position (max_width_of_lhs);
        }
 }
-#endif
 
 Editor::Editor ()
        : _join_object_range_state (JOIN_OBJECT_RANGE_NONE)
@@ -255,6 +242,7 @@ Editor::Editor ()
        , range_mark_label (_("Range Markers"))
        , transport_mark_label (_("Loop/Punch Ranges"))
        , cd_mark_label (_("CD Markers"))
+       , videotl_label (_("Video Timeline"))
        , edit_packer (4, 4, true)
 
          /* the values here don't matter: layout widgets
@@ -262,6 +250,10 @@ Editor::Editor ()
          */
 
        , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
+       , horizontal_adjustment (0.0, 0.0, 1e16)
+       , unused_adjustment (0.0, 0.0, 10.0, 400.0)
+
+       , controls_layout (unused_adjustment, vertical_adjustment)
 
          /* tool bar related */
 
@@ -273,10 +265,6 @@ Editor::Editor ()
 
        , _toolbar_viewport (*manage (new Gtk::Adjustment (0, 0, 1e10)), *manage (new Gtk::Adjustment (0, 0, 1e10)))
 
-#ifdef WITH_CMT
-       , image_socket_listener(0)
-#endif
-
          /* nudge */
 
        , nudge_clock (new AudioClock (X_("nudge"), false, X_("nudge"), true, false, true))
@@ -287,6 +275,8 @@ Editor::Editor ()
 
        , _region_selection_change_updates_region_list (true)
        , _following_mixer_selection (false)
+       , _control_point_toggled_on_press (false)
+       , _stepping_axis_view (0)
 {
        constructed = false;
 
@@ -320,8 +310,8 @@ Editor::Editor ()
 
        snap_threshold = 5.0;
        bbt_beat_subdivision = 4;
-       _canvas_width = 0;
-       _canvas_height = 0;
+       _visible_canvas_width = 0;
+       _visible_canvas_height = 0;
        last_autoscroll_x = 0;
        last_autoscroll_y = 0;
        autoscroll_active = false;
@@ -373,17 +363,17 @@ Editor::Editor ()
 
        sfbrowser = 0;
 
-       location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
-       location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
-       location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
-       location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
-       location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
+       location_marker_color = ARDOUR_UI::config()->get_canvasvar_LocationMarker();
+       location_range_color = ARDOUR_UI::config()->get_canvasvar_LocationRange();
+       location_cd_marker_color = ARDOUR_UI::config()->get_canvasvar_LocationCDMarker();
+       location_loop_color = ARDOUR_UI::config()->get_canvasvar_LocationLoop();
+       location_punch_color = ARDOUR_UI::config()->get_canvasvar_LocationPunch();
 
        _edit_point = EditAtMouse;
        _internal_editing = false;
        current_canvas_cursor = 0;
 
-       frames_per_unit = 2048; /* too early to use reset_zoom () */
+       samples_per_pixel = 2048; /* too early to use reset_zoom () */
 
        _scroll_callbacks = 0;
 
@@ -391,67 +381,75 @@ Editor::Editor ()
        set_zoom_focus (ZoomFocusLeft);
        zoom_range_clock->ValueChanged.connect (sigc::mem_fun(*this, &Editor::zoom_adjustment_changed));
 
-       bbt_label.set_name ("EditorTimeButton");
+       bbt_label.set_name ("EditorRulerLabel");
        bbt_label.set_size_request (-1, (int)timebar_height);
        bbt_label.set_alignment (1.0, 0.5);
        bbt_label.set_padding (5,0);
        bbt_label.hide ();
        bbt_label.set_no_show_all();
-       minsec_label.set_name ("EditorTimeButton");
+       minsec_label.set_name ("EditorRulerLabel");
        minsec_label.set_size_request (-1, (int)timebar_height);
        minsec_label.set_alignment (1.0, 0.5);
        minsec_label.set_padding (5,0);
        minsec_label.hide ();
        minsec_label.set_no_show_all();
-       timecode_label.set_name ("EditorTimeButton");
+       timecode_label.set_name ("EditorRulerLabel");
        timecode_label.set_size_request (-1, (int)timebar_height);
        timecode_label.set_alignment (1.0, 0.5);
        timecode_label.set_padding (5,0);
        timecode_label.hide ();
        timecode_label.set_no_show_all();
-       samples_label.set_name ("EditorTimeButton");
+       samples_label.set_name ("EditorRulerLabel");
        samples_label.set_size_request (-1, (int)timebar_height);
        samples_label.set_alignment (1.0, 0.5);
        samples_label.set_padding (5,0);
        samples_label.hide ();
        samples_label.set_no_show_all();
 
-       tempo_label.set_name ("EditorTimeButton");
+       tempo_label.set_name ("EditorRulerLabel");
        tempo_label.set_size_request (-1, (int)timebar_height);
        tempo_label.set_alignment (1.0, 0.5);
        tempo_label.set_padding (5,0);
        tempo_label.hide();
        tempo_label.set_no_show_all();
 
-       meter_label.set_name ("EditorTimeButton");
+       meter_label.set_name ("EditorRulerLabel");
        meter_label.set_size_request (-1, (int)timebar_height);
        meter_label.set_alignment (1.0, 0.5);
        meter_label.set_padding (5,0);
        meter_label.hide();
        meter_label.set_no_show_all();
 
-       mark_label.set_name ("EditorTimeButton");
+       mark_label.set_name ("EditorRulerLabel");
        mark_label.set_size_request (-1, (int)timebar_height);
        mark_label.set_alignment (1.0, 0.5);
        mark_label.set_padding (5,0);
        mark_label.hide();
        mark_label.set_no_show_all();
 
-       cd_mark_label.set_name ("EditorTimeButton");
+       cd_mark_label.set_name ("EditorRulerLabel");
        cd_mark_label.set_size_request (-1, (int)timebar_height);
        cd_mark_label.set_alignment (1.0, 0.5);
        cd_mark_label.set_padding (5,0);
        cd_mark_label.hide();
        cd_mark_label.set_no_show_all();
 
-       range_mark_label.set_name ("EditorTimeButton");
+       videotl_bar_height = 4;
+       videotl_label.set_name ("EditorRulerLabel");
+       videotl_label.set_size_request (-1, (int)timebar_height * videotl_bar_height);
+       videotl_label.set_alignment (1.0, 0.5);
+       videotl_label.set_padding (5,0);
+       videotl_label.hide();
+       videotl_label.set_no_show_all();
+
+       range_mark_label.set_name ("EditorRulerLabel");
        range_mark_label.set_size_request (-1, (int)timebar_height);
        range_mark_label.set_alignment (1.0, 0.5);
        range_mark_label.set_padding (5,0);
        range_mark_label.hide();
        range_mark_label.set_no_show_all();
 
-       transport_mark_label.set_name ("EditorTimeButton");
+       transport_mark_label.set_name ("EditorRulerLabel");
        transport_mark_label.set_size_request (-1, (int)timebar_height);
        transport_mark_label.set_alignment (1.0, 0.5);
        transport_mark_label.set_padding (5,0);
@@ -473,7 +471,7 @@ Editor::Editor ()
 
        edit_controls_vbox.set_spacing (0);
        vertical_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::tie_vertical_scrolling), true);
-       track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
+       _track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
 
        HBox* h = manage (new HBox);
        _group_tabs = new EditorGroupTabs (this);
@@ -490,13 +488,14 @@ Editor::Editor ()
 
        _cursors = new MouseCursors;
 
-       ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
-       ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
-                       0.0, 1.0, 100.0, 1.0));
+       ArdourCanvas::GtkCanvas* time_pad = manage (new ArdourCanvas::GtkCanvas ());
 
-       pad_line_1->property_color_rgba() = 0xFF0000FF;
+       ArdourCanvas::Line* pad_line_1 = new ArdourCanvas::Line (time_pad->root());
+       pad_line_1->set (ArdourCanvas::Duple (0.0, 1.0), ArdourCanvas::Duple (100.0, 1.0));
+       pad_line_1->set_outline_color (0xFF0000FF);
        pad_line_1->show();
 
+       // CAIROCANVAS
        time_pad->show();
 
        time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
@@ -506,15 +505,9 @@ Editor::Editor ()
        ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
        ruler_label_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 
-       time_button_event_box.add (time_button_vbox);
-       time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
-       time_button_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
-
-       /* these enable us to have a dedicated window (for cursor setting, etc.)
-          for the canvas areas.
-       */
-
-       track_canvas_event_box.add (*track_canvas);
+       time_bars_event_box.add (time_bars_vbox);
+       time_bars_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
+       time_bars_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 
        time_canvas_event_box.add (time_canvas_vbox);
        time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
@@ -527,14 +520,16 @@ Editor::Editor ()
 
        /* labels for the rulers */
        edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
-       /* labels for the marker "tracks" */
-       edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
+       /* labels for the marker "tracks" (time bars) */
+       edit_packer.attach (time_bars_event_box,     1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
        /* the rulers */
        edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
        /* track controls */
        edit_packer.attach (controls_layout,         0, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
-       /* main canvas */
-       edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
+       /* time bars canvas */
+       edit_packer.attach (*_time_bars_canvas_viewport, 2, 3, 1, 2,    FILL,    FILL, 0, 0);
+       /* track canvas */
+       edit_packer.attach (*_track_canvas_viewport,  2, 3, 2, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 
        bottom_hbox.set_border_width (2);
        bottom_hbox.set_spacing (3);
@@ -606,13 +601,13 @@ Editor::Editor ()
 
        editor_summary_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun (*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&editor_summary_pane)));
 
-       /* XXX: editor_summary_pane might need similar special OS X treatment to the edit_pane */
+       /* XXX: editor_summary_pane might need similar to the edit_pane */
 
        edit_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
-#ifdef GTKOSX
+
        Glib::PropertyProxy<int> proxy = edit_pane.property_position();
        proxy.signal_changed().connect (bind (sigc::ptr_fun (pane_size_watcher), static_cast<Paned*> (&edit_pane)));
-#endif
+
        top_hbox.pack_start (toolbar_frame);
 
        HBox *hbox = manage (new HBox);
@@ -660,11 +655,13 @@ Editor::Editor ()
 
        /* nudge stuff */
 
-       nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
-       nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
+       nudge_forward_button.set_name ("zoom button");
+       nudge_forward_button.add_elements (ArdourButton::FlatFace);
+       nudge_forward_button.set_image(::get_icon("nudge_right"));
 
-       nudge_forward_button.set_name ("TransportButton");
-       nudge_backward_button.set_name ("TransportButton");
+       nudge_backward_button.set_name ("zoom button");
+       nudge_backward_button.add_elements (ArdourButton::FlatFace);
+       nudge_backward_button.set_image(::get_icon("nudge_left"));
 
        fade_context_menu.set_name ("ArdourContextMenu");
 
@@ -701,6 +698,8 @@ Editor::Editor ()
        signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
        signal_delete_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 
+       Gtkmm2ext::Keyboard::the_keyboard().ShiftReleased.connect (sigc::mem_fun (*this, &Editor::shift_key_released));
+       
        /* allow external control surfaces/protocols to do various things */
 
        ControlProtocol::ZoomToSession.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_session, this), gui_context());
@@ -760,22 +759,11 @@ Editor::Editor ()
 
 Editor::~Editor()
 {
-#ifdef WITH_CMT
-       if(image_socket_listener) {
-               if(image_socket_listener->is_connected())
-               {
-                       image_socket_listener->close_connection() ;
-               }
-
-               delete image_socket_listener ;
-               image_socket_listener = 0 ;
-       }
-#endif
-
         delete button_bindings;
        delete _routes;
        delete _route_groups;
-       delete track_canvas;
+       delete _time_bars_canvas_viewport;
+       delete _track_canvas_viewport;
        delete _drags;
 }
 
@@ -786,7 +774,6 @@ Editor::button_settings () const
        XMLNode* node = find_named_node (*settings, X_("Buttons"));
 
        if (!node) {
-                cerr << "new empty Button node\n";
                node = new XMLNode (X_("Buttons"));
        }
 
@@ -800,6 +787,12 @@ Editor::add_toplevel_controls (Container& cont)
        cont.show_all ();
 }
 
+bool
+Editor::get_smart_mode () const
+{
+       return ( (current_mouse_mode() == Editing::MouseObject) && smart_mode_action->get_active() );
+}
+
 void
 Editor::catch_vanishing_regionview (RegionView *rv)
 {
@@ -919,14 +912,11 @@ Editor::zoom_adjustment_changed ()
                return;
        }
 
-       double fpu = zoom_range_clock->current_duration() / _canvas_width;
-
-       if (fpu < 1.0) {
-               fpu = 1.0;
-               zoom_range_clock->set ((framepos_t) floor (fpu * _canvas_width));
-       } else if (fpu > _session->current_end_frame() / _canvas_width) {
-               fpu = _session->current_end_frame() / _canvas_width;
-               zoom_range_clock->set ((framepos_t) floor (fpu * _canvas_width));
+       framecnt_t fpu = llrintf (zoom_range_clock->current_duration() / _visible_canvas_width);
+       bool clamped = clamp_samples_per_pixel (fpu);
+       
+       if (clamped) {
+               zoom_range_clock->set ((framepos_t) floor (fpu * _visible_canvas_width));
        }
 
        temporal_zoom (fpu);
@@ -1027,7 +1017,7 @@ Editor::control_scroll (float fraction)
                return;
        }
 
-       double step = fraction * current_page_frames();
+       double step = fraction * current_page_samples();
 
        /*
                _control_scroll_target is an optional<T>
@@ -1048,7 +1038,7 @@ Editor::control_scroll (float fraction)
        if ((fraction < 0.0f) && (*_control_scroll_target < (framepos_t) fabs(step))) {
                *_control_scroll_target = 0;
        } else if ((fraction > 0.0f) && (max_framepos - *_control_scroll_target < step)) {
-               *_control_scroll_target = max_framepos - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
+               *_control_scroll_target = max_framepos - (current_page_samples()*2); // allow room for slop in where the PH is on the screen
        } else {
                *_control_scroll_target += (framepos_t) floor (step);
        }
@@ -1058,9 +1048,9 @@ Editor::control_scroll (float fraction)
        playhead_cursor->set_position (*_control_scroll_target);
        UpdateAllTransportClocks (*_control_scroll_target);
 
-       if (*_control_scroll_target > (current_page_frames() / 2)) {
+       if (*_control_scroll_target > (current_page_samples() / 2)) {
                /* try to center PH in window */
-               reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
+               reset_x_origin (*_control_scroll_target - (current_page_samples()/2));
        } else {
                reset_x_origin (0);
        }
@@ -1133,7 +1123,7 @@ Editor::map_position_change (framepos_t frame)
 void
 Editor::center_screen (framepos_t frame)
 {
-       double page = _canvas_width * frames_per_unit;
+       framecnt_t const page = _visible_canvas_width * samples_per_pixel;
 
        /* if we're off the page, then scroll.
         */
@@ -1181,6 +1171,8 @@ Editor::update_title ()
                WindowTitle title(session_name);
                title += Glib::get_application_name();
                set_title (title.get_string());
+       } else {
+               /* ::session_going_away() will have taken care of it */
        }
 }
 
@@ -1261,7 +1253,7 @@ Editor::set_session (Session *t)
 
        /* catch up with the playhead */
 
-       _session->request_locate (playhead_cursor->current_frame);
+       _session->request_locate (playhead_cursor->current_frame ());
        _pending_initial_locate = true;
 
        update_title ();
@@ -1274,7 +1266,7 @@ Editor::set_session (Session *t)
        _session->StepEditStatusChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::step_edit_status_change, this, _1), gui_context());
        _session->TransportStateChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_transport_state, this), gui_context());
        _session->PositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_position_change, this, _1), gui_context());
-       _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::handle_new_route, this, _1), gui_context());
+       _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_routes, this, _1), gui_context());
        _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_title, this), gui_context());
        _session->tempo_map().PropertyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::tempo_map_changed, this, _1), gui_context());
        _session->Located.connect (_session_connections, invalidator (*this), boost::bind (&Editor::located, this), gui_context());
@@ -1286,7 +1278,7 @@ Editor::set_session (Session *t)
        _session->locations()->StateChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::refresh_location_display, this), gui_context());
        _session->history().Changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::history_changed, this), gui_context());
 
-       playhead_cursor->canvas_item.show ();
+       playhead_cursor->show ();
 
        boost::function<void (string)> pc (boost::bind (&Editor::parameter_changed, this, _1));
        Config->map_parameters (pc);
@@ -1297,7 +1289,7 @@ Editor::set_session (Session *t)
        _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
 
        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-               (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
+               (static_cast<TimeAxisView*>(*i))->set_samples_per_pixel (samples_per_pixel);
        }
 
        super_rapid_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
@@ -1341,64 +1333,98 @@ Editor::action_pre_activated (Glib::RefPtr<Action> const & a)
        }
 }
 
-/** Pop up a context menu for when the user clicks on a crossfade */
 void
-Editor::popup_xfade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
+Editor::fill_xfade_menu (Menu_Helpers::MenuList& items, bool start)
 {
        using namespace Menu_Helpers;
 
-       MenuList& items (xfade_context_menu.items());
+       void (Editor::*emf)(FadeShape);
+       std::map<ARDOUR::FadeShape,Gtk::Image*>* images;
+
+       if (start) {
+               images = &_xfade_in_images;
+               emf = &Editor::set_fade_in_shape;
+       } else {
+               images = &_xfade_out_images;
+               emf = &Editor::set_fade_out_shape;
+       }
+
+       items.push_back (
+               ImageMenuElem (
+                       _("Linear (for highly correlated material)"),
+                       *(*images)[FadeLinear],
+                       sigc::bind (sigc::mem_fun (*this, emf), FadeLinear)
+                       )
+               );
+       
+       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+       
+       items.push_back (
+               ImageMenuElem (
+                       _("Constant power"),
+                       *(*images)[FadeConstantPower],
+                       sigc::bind (sigc::mem_fun (*this, emf), FadeConstantPower)
+                       ));
+       
+       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+       
+       items.push_back (
+               ImageMenuElem (
+                       _("Symmetric"),
+                       *(*images)[FadeSymmetric],
+                       sigc::bind (sigc::mem_fun (*this, emf), FadeSymmetric)
+                       )
+               );
+       
+       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+       
+       items.push_back (
+               ImageMenuElem (
+                       _("Slow"),
+                       *(*images)[FadeSlow],
+                       sigc::bind (sigc::mem_fun (*this, emf), FadeSlow)
+                       ));
        
+       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+       
+       items.push_back (
+               ImageMenuElem (
+                       _("Fast"),
+                       *(*images)[FadeFast],
+                       sigc::bind (sigc::mem_fun (*this, emf), FadeFast)
+                       ));
+       
+       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+}
+
+/** Pop up a context menu for when the user clicks on a start crossfade */
+void
+Editor::popup_xfade_in_context_menu (int button, int32_t time, ArdourCanvas::Item* /*item*/, ItemType /*item_type*/)
+{
+       using namespace Menu_Helpers;
+
+       MenuList& items (xfade_in_context_menu.items());
+
        if (items.empty()) {
-               items.push_back (
-                       ImageMenuElem (
-                               _("Linear (for highly correlated material)"),
-                               *_xfade_images[FadeLinear],
-                               sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)
-                               )
-                       );
-               
-               dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-               
-               items.push_back (
-                       ImageMenuElem (
-                               _("ConstantPower (-6dB)"),
-                               *_xfade_images[FadeFast],
-                               sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)
-                               ));
-               
-               dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-               
-               items.push_back (
-                       ImageMenuElem (
-                               _("Linear-dB"),
-                               *_xfade_images[FadeSlow],
-                               sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSlow)
-                               )
-                       );
-               
-               dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-
-               items.push_back (
-                       ImageMenuElem (
-                               _("Smooth"),
-                               *_xfade_images[FadeLogB],
-                               sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLogB)
-                               ));
-               
-               dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-               
-               items.push_back (
-                       ImageMenuElem (
-                               _("Fast"),
-                               *_xfade_images[FadeLogA],
-                               sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLogA)
-                               ));
-               
-               dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
+               fill_xfade_menu (items, true);
        }
 
-       xfade_context_menu.popup (button, time);
+       xfade_in_context_menu.popup (button, time);
+}
+
+/** Pop up a context menu for when the user clicks on an end crossfade */
+void
+Editor::popup_xfade_out_context_menu (int button, int32_t time, ArdourCanvas::Item* /*item*/, ItemType /*item_type*/)
+{
+       using namespace Menu_Helpers;
+
+       MenuList& items (xfade_out_context_menu.items());
+
+       if (items.empty()) {
+               fill_xfade_menu (items, false);
+       }
+
+       xfade_out_context_menu.popup (button, time);
 }
 
 
@@ -1415,7 +1441,6 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
        }
 
        MenuList& items (fade_context_menu.items());
-
        items.clear ();
 
        switch (item_type) {
@@ -1426,16 +1451,16 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                } else {
                        items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), true)));
                }
-
+               
                items.push_back (SeparatorElem());
-
+               
                if (Profile->get_sae()) {
-
+                       
                        items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)));
                        items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)));
-
+                       
                } else {
-
+                       
                        items.push_back (
                                ImageMenuElem (
                                        _("Linear"),
@@ -1443,41 +1468,39 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
                                        sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)
                                        )
                                );
-
+                               
                        dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-
+                               
                        items.push_back (
                                ImageMenuElem (
-                                       _("Slowest"),
-                                       *_fade_in_images[FadeFast],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)
+                                       _("Slow"),
+                                       *_fade_in_images[FadeSlow],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSlow)
                                        ));
-
+                               
                        dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-
+                               
                        items.push_back (
                                ImageMenuElem (
-                                       _("Slow"),
-                                       *_fade_in_images[FadeLogB],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLogB)
+                                       _("Fast"),
+                                       *_fade_in_images[FadeFast],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)
                                        ));
-
+                               
                        dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-
+                               
                        items.push_back (
                                ImageMenuElem (
-                                       _("Fast"),
-                                       *_fade_in_images[FadeLogA],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLogA)
+                                       _("Symmetric"),
+                                       *_fade_in_images[FadeSymmetric],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSymmetric)
                                        ));
-
-                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-
+                               
                        items.push_back (
                                ImageMenuElem (
-                                       _("Fastest"),
-                                       *_fade_in_images[FadeSlow],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSlow)
+                                       _("Constant power"),
+                                       *_fade_in_images[FadeConstantPower],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeConstantPower)
                                        ));
 
                        dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
@@ -1512,8 +1535,8 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
 
                        items.push_back (
                                ImageMenuElem (
-                                       _("Slowest"),
-                                       *_fade_out_images[FadeFast],
+                                       _("Slow"),
+                                       *_fade_out_images[FadeSlow],
                                        sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSlow)
                                        ));
 
@@ -1521,27 +1544,25 @@ Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* i
 
                        items.push_back (
                                ImageMenuElem (
-                                       _("Slow"),
-                                       *_fade_out_images[FadeLogB],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLogA)
+                                       _("Fast"),
+                                       *_fade_out_images[FadeFast],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeFast)
                                        ));
 
                        dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
 
                        items.push_back (
                                ImageMenuElem (
-                                       _("Fast"),
-                                       *_fade_out_images[FadeLogA],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLogB)
+                                       _("Symmetric"),
+                                       *_fade_out_images[FadeSymmetric],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSymmetric)
                                        ));
 
-                       dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
-
                        items.push_back (
                                ImageMenuElem (
-                                       _("Fastest"),
-                                       *_fade_out_images[FadeSlow],
-                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeFast)
+                                       _("Constant power"),
+                                       *_fade_out_images[FadeConstantPower],
+                                       sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeConstantPower)
                                        ));
 
                        dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
@@ -1883,7 +1904,7 @@ Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
        edit_items.push_back (SeparatorElem());
        edit_items.push_back (MenuElem (_("Crop Region to Range"), sigc::mem_fun(*this, &Editor::crop_region_to_selection)));
        edit_items.push_back (MenuElem (_("Fill Range with Region"), sigc::mem_fun(*this, &Editor::region_fill_selection)));
-       edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false)));
+       edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_range), false)));
 
        edit_items.push_back (SeparatorElem());
        edit_items.push_back (MenuElem (_("Consolidate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, false)));
@@ -1967,10 +1988,10 @@ Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
        nudge_menu->set_name ("ArdourContextMenu");
 
        edit_items.push_back (SeparatorElem());
-       nudge_items.push_back (MenuElem (_("Nudge Entire Track Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
-       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
-       nudge_items.push_back (MenuElem (_("Nudge Entire Track Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
-       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
+       nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
+       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
+       nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
+       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
 
        edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
 }
@@ -2023,10 +2044,10 @@ Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
        nudge_menu->set_name ("ArdourContextMenu");
 
        edit_items.push_back (SeparatorElem());
-       nudge_items.push_back (MenuElem (_("Nudge Entire Track Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
-       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
-       nudge_items.push_back (MenuElem (_("Nudge Entire Track Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
-       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
+       nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
+       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
+       nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
+       nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
 
        edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
 }
@@ -2080,10 +2101,17 @@ Editor::set_snap_to (SnapType st)
        case SnapToBeatDiv5:
        case SnapToBeatDiv4:
        case SnapToBeatDiv3:
-       case SnapToBeatDiv2:
-               compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
-               update_tempo_based_rulers ();
+       case SnapToBeatDiv2: {
+               ARDOUR::TempoMap::BBTPointList::const_iterator current_bbt_points_begin;
+               ARDOUR::TempoMap::BBTPointList::const_iterator current_bbt_points_end;
+               
+               compute_current_bbt_points (leftmost_frame, leftmost_frame + current_page_samples(),
+                                           current_bbt_points_begin, current_bbt_points_end);
+               compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_samples(),
+                                        current_bbt_points_begin, current_bbt_points_end);
+               update_tempo_based_rulers (current_bbt_points_begin, current_bbt_points_end);
                break;
+       }
 
        case SnapToRegionStart:
        case SnapToRegionEnd:
@@ -2103,9 +2131,16 @@ Editor::set_snap_to (SnapType st)
 void
 Editor::set_snap_mode (SnapMode mode)
 {
-       _snap_mode = mode;
        string str = snap_mode_strings[(int)mode];
 
+       if (_internal_editing) {
+               internal_snap_mode = mode;
+       } else {
+               pre_internal_snap_mode = mode;
+       }
+
+       _snap_mode = mode;
+
        if (str != snap_mode_selector.get_active_text ()) {
                snap_mode_selector.set_active_text (str);
        }
@@ -2228,9 +2263,11 @@ Editor::set_state (const XMLNode& node, int /*version*/)
        }
 
        if ((prop = node.property ("zoom"))) {
-               reset_zoom (PBD::atof (prop->value()));
+               /* older versions of ardour used floating point samples_per_pixel */
+               double f = PBD::atof (prop->value());
+               reset_zoom (llrintf (f));
        } else {
-               reset_zoom (frames_per_unit);
+               reset_zoom (samples_per_pixel);
        }
 
        if ((prop = node.property ("snap-to"))) {
@@ -2253,6 +2290,7 @@ Editor::set_state (const XMLNode& node, int /*version*/)
                pre_internal_snap_type = (SnapType) string_2_enum (prop->value(), pre_internal_snap_type);
        }
 
+
        if ((prop = node.property ("pre-internal-snap-mode"))) {
                pre_internal_snap_mode = (SnapMode) string_2_enum (prop->value(), pre_internal_snap_mode);
        }
@@ -2289,7 +2327,14 @@ Editor::set_state (const XMLNode& node, int /*version*/)
        }
 
        if ((prop = node.property ("join-object-range"))) {
-               ActionManager::set_toggle_action ("MouseMode", "set-mouse-mode-object-range", string_is_affirmative (prop->value ()));
+               RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("set-mouse-mode-object-range"));
+               bool yn = string_is_affirmative (prop->value());
+               if (act) {
+                       RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
+                       tact->set_active (!yn);
+                       tact->set_active (yn);
+               }
+               set_mouse_mode(mouse_mode, true);
        }
 
        if ((prop = node.property ("edit-point"))) {
@@ -2442,7 +2487,8 @@ Editor::get_state ()
        maybe_add_mixer_strip_width (*node);
 
        node->add_property ("zoom-focus", enum_2_string (zoom_focus));
-       snprintf (buf, sizeof(buf), "%f", frames_per_unit);
+
+       snprintf (buf, sizeof(buf), "%" PRId64, samples_per_pixel);
        node->add_property ("zoom", buf);
        node->add_property ("snap-to", enum_2_string (_snap_type));
        node->add_property ("snap-mode", enum_2_string (_snap_mode));
@@ -2452,7 +2498,7 @@ Editor::get_state ()
        node->add_property ("pre-internal-snap-mode", enum_2_string (pre_internal_snap_mode));
        node->add_property ("edit-point", enum_2_string (_edit_point));
 
-       snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
+       snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame ());
        node->add_property ("playhead", buf);
        snprintf (buf, sizeof (buf), "%" PRIi64, leftmost_frame);
        node->add_property ("left-frame", buf);
@@ -2717,7 +2763,10 @@ Editor::snap_to_internal (framepos_t& start, int32_t direction, bool for_mark)
 
                _session->locations()->marks_either_side (start, before, after);
 
-               if (before == max_framepos) {
+               if (before == max_framepos && after == max_framepos) {
+                       /* No marks to snap to, so just don't snap */
+                       return;
+               } else if (before == max_framepos) {
                        start = after;
                } else if (after == max_framepos) {
                        start = before;
@@ -2771,12 +2820,12 @@ Editor::snap_to_internal (framepos_t& start, int32_t direction, bool for_mark)
        case SnapMagnetic:
 
                if (presnap > start) {
-                       if (presnap > (start + unit_to_frame(snap_threshold))) {
+                       if (presnap > (start + pixel_to_sample(snap_threshold))) {
                                start = presnap;
                        }
 
                } else if (presnap < start) {
-                       if (presnap < (start - unit_to_frame(snap_threshold))) {
+                       if (presnap < (start - pixel_to_sample(snap_threshold))) {
                                start = presnap;
                        }
                }
@@ -2797,14 +2846,12 @@ Editor::setup_toolbar ()
        mode_box->set_spacing(4);
 
        HBox* mouse_mode_box = manage (new HBox);
-       HBox* mouse_mode_hbox1 = manage (new HBox);
-       HBox* mouse_mode_hbox2 = manage (new HBox);
-       VBox* mouse_mode_vbox1 = manage (new VBox);
-       VBox* mouse_mode_vbox2 = manage (new VBox);
-       Alignment* mouse_mode_align1 = manage (new Alignment);
-       Alignment* mouse_mode_align2 = manage (new Alignment);
+       HBox* mouse_mode_hbox = manage (new HBox);
+       VBox* mouse_mode_vbox = manage (new VBox);
+       Alignment* mouse_mode_align = manage (new Alignment);
 
        Glib::RefPtr<SizeGroup> mouse_mode_size_group = SizeGroup::create (SIZE_GROUP_BOTH);
+//     mouse_mode_size_group->add_widget (smart_mode_button);
        mouse_mode_size_group->add_widget (mouse_move_button);
        mouse_mode_size_group->add_widget (mouse_select_button);
        mouse_mode_size_group->add_widget (mouse_zoom_button);
@@ -2815,32 +2862,26 @@ Editor::setup_toolbar ()
        mouse_mode_size_group->add_widget (internal_edit_button);
 
        /* make them just a bit bigger */
-       mouse_move_button.set_size_request (-1, 25);
+       mouse_move_button.set_size_request (-1, 30);
 
-       smart_mode_joiner = manage (new ButtonJoiner ("mouse mode button", mouse_move_button, mouse_select_button, true));
-       smart_mode_joiner->set_related_action (smart_mode_action);
+       mouse_mode_hbox->set_spacing (2);
 
-       mouse_mode_hbox2->set_spacing (2);
-       mouse_mode_box->set_spacing (2);
+       mouse_mode_hbox->pack_start (smart_mode_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_move_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_select_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_zoom_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_gain_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_timefx_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_audition_button, false, false);
+       mouse_mode_hbox->pack_start (mouse_draw_button, false, false);
+       mouse_mode_hbox->pack_start (internal_edit_button, false, false, 8);
 
-       mouse_mode_hbox1->pack_start (*smart_mode_joiner, false, false);
-       mouse_mode_hbox2->pack_start (mouse_zoom_button, false, false);
-       mouse_mode_hbox2->pack_start (mouse_gain_button, false, false);
-       mouse_mode_hbox2->pack_start (mouse_timefx_button, false, false);
-       mouse_mode_hbox2->pack_start (mouse_audition_button, false, false);
-       mouse_mode_hbox2->pack_start (mouse_draw_button, false, false);
-       mouse_mode_hbox2->pack_start (internal_edit_button, false, false);
+       mouse_mode_vbox->pack_start (*mouse_mode_hbox);
 
-       mouse_mode_vbox1->pack_start (*mouse_mode_hbox1, false, false);
-       mouse_mode_vbox2->pack_start (*mouse_mode_hbox2, false, false);
+       mouse_mode_align->add (*mouse_mode_vbox);
+       mouse_mode_align->set (0.5, 1.0, 0.0, 0.0);
 
-       mouse_mode_align1->add (*mouse_mode_vbox1);
-       mouse_mode_align1->set (0.5, 1.0, 0.0, 0.0);
-       mouse_mode_align2->add (*mouse_mode_vbox2);
-       mouse_mode_align2->set (0.5, 1.0, 0.0, 0.0);
-
-       mouse_mode_box->pack_start (*mouse_mode_align1, false, false);
-       mouse_mode_box->pack_start (*mouse_mode_align2, false, false);
+       mouse_mode_box->pack_start (*mouse_mode_align, false, false);
 
        edit_mode_strings.push_back (edit_mode_to_string (Slide));
        if (!Profile->get_sae()) {
@@ -2880,20 +2921,23 @@ Editor::setup_toolbar ()
        RefPtr<Action> act;
 
        zoom_in_button.set_name ("zoom button");
-       zoom_in_button.set_image (::get_icon ("zoom_in"));
-       zoom_in_button.set_tweaks (ArdourButton::ShowClick);
+       zoom_in_button.add_elements ( ArdourButton::FlatFace );
+       zoom_in_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
+       zoom_in_button.set_image(::get_icon ("zoom_in"));
        act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-in"));
        zoom_in_button.set_related_action (act);
 
        zoom_out_button.set_name ("zoom button");
-       zoom_out_button.set_image (::get_icon ("zoom_out"));
-       zoom_out_button.set_tweaks (ArdourButton::ShowClick);
+       zoom_out_button.add_elements ( ArdourButton::FlatFace );
+       zoom_out_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
+       zoom_out_button.set_image(::get_icon ("zoom_out"));
        act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-out"));
        zoom_out_button.set_related_action (act);
 
        zoom_out_full_button.set_name ("zoom button");
-       zoom_out_full_button.set_image (::get_icon ("zoom_full"));
-       zoom_out_full_button.set_tweaks (ArdourButton::ShowClick);
+       zoom_out_full_button.add_elements ( ArdourButton::FlatFace );
+       zoom_out_full_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
+       zoom_out_full_button.set_image(::get_icon ("zoom_full"));
        act = ActionManager::get_action (X_("Editor"), X_("zoom-to-session"));
        zoom_out_full_button.set_related_action (act);
 
@@ -2908,17 +2952,21 @@ Editor::setup_toolbar ()
        _zoom_box.pack_start (zoom_focus_selector, false, false);
 
        /* Track zoom buttons */
-       tav_expand_button.set_name ("TrackHeightButton");
+       tav_expand_button.set_name ("zoom button");
+       tav_expand_button.add_elements ( ArdourButton::FlatFace );
+       tav_expand_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
        tav_expand_button.set_size_request (-1, 20);
-       tav_expand_button.add (*(manage (new Image (::get_icon ("tav_exp")))));
+       tav_expand_button.set_image(::get_icon ("tav_exp"));
        act = ActionManager::get_action (X_("Editor"), X_("expand-tracks"));
-       act->connect_proxy (tav_expand_button);
+       tav_expand_button.set_related_action (act);
 
-       tav_shrink_button.set_name ("TrackHeightButton");
+       tav_shrink_button.set_name ("zoom button");
+       tav_shrink_button.add_elements ( ArdourButton::FlatFace );
+       tav_shrink_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
        tav_shrink_button.set_size_request (-1, 20);
-       tav_shrink_button.add (*(manage (new Image (::get_icon ("tav_shrink")))));
+       tav_shrink_button.set_image(::get_icon ("tav_shrink"));
        act = ActionManager::get_action (X_("Editor"), X_("shrink-tracks"));
-       act->connect_proxy (tav_shrink_button);
+       tav_shrink_button.set_related_action (act);
 
        _zoom_box.pack_start (tav_shrink_button);
        _zoom_box.pack_start (tav_expand_button);
@@ -2934,7 +2982,7 @@ Editor::setup_toolbar ()
        _zoom_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
                                                    &_zoom_tearoff->tearoff_window(), 0));
 
-       snap_box.set_spacing (1);
+       snap_box.set_spacing (2);
        snap_box.set_border_width (2);
 
        snap_type_selector.set_name ("SnapTypeSelector");
@@ -2962,6 +3010,9 @@ Editor::setup_toolbar ()
        nudge_forward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_forward_release), false);
        nudge_backward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_backward_release), false);
 
+       nudge_forward_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
+       nudge_backward_button.set_tweaks ((ArdourButton::Tweaks) (ArdourButton::ShowClick) );
+
        nudge_box->pack_start (nudge_backward_button, false, false);
        nudge_box->pack_start (nudge_forward_button, false, false);
        nudge_box->pack_start (*nudge_clock, false, false);
@@ -3021,18 +3072,18 @@ Editor::setup_toolbar ()
 void
 Editor::setup_tooltips ()
 {
-       ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Select/Move Objects"));
-       ARDOUR_UI::instance()->set_tip (mouse_select_button, _("Select/Move Ranges"));
+       ARDOUR_UI::instance()->set_tip (smart_mode_button, _("Smart Mode (add Range functions to Object mode)"));
+       ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Object Mode (select/move Objects)"));
+       ARDOUR_UI::instance()->set_tip (mouse_select_button, _("Range Mode (select/move Ranges)"));
        ARDOUR_UI::instance()->set_tip (mouse_draw_button, _("Draw/Edit MIDI Notes"));
        ARDOUR_UI::instance()->set_tip (mouse_gain_button, _("Draw Region Gain"));
        ARDOUR_UI::instance()->set_tip (mouse_zoom_button, _("Select Zoom Range"));
        ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch/Shrink Regions and MIDI Notes"));
        ARDOUR_UI::instance()->set_tip (mouse_audition_button, _("Listen to Specific Regions"));
-       ARDOUR_UI::instance()->set_tip (smart_mode_joiner, _("Smart Mode (Select/Move Objects + Ranges)"));
-       ARDOUR_UI::instance()->set_tip (internal_edit_button, _("Edit Region Contents (e.g. notes)"));
+       ARDOUR_UI::instance()->set_tip (internal_edit_button, _("Note Level Editing"));
        ARDOUR_UI::instance()->set_tip (*_group_tabs, _("Groups: click to (de)activate\nContext-click for other operations"));
-       ARDOUR_UI::instance()->set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
-       ARDOUR_UI::instance()->set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
+       ARDOUR_UI::instance()->set_tip (nudge_forward_button, _("Nudge Region/Selection Later"));
+       ARDOUR_UI::instance()->set_tip (nudge_backward_button, _("Nudge Region/Selection Earlier"));
        ARDOUR_UI::instance()->set_tip (zoom_in_button, _("Zoom In"));
        ARDOUR_UI::instance()->set_tip (zoom_out_button, _("Zoom Out"));
        ARDOUR_UI::instance()->set_tip (zoom_out_full_button, _("Zoom to Session"));
@@ -3083,8 +3134,8 @@ Editor::convert_drop_to_paths (
                const char* q;
 
                p = (const char *) malloc (txt.length() + 1);
-               txt.copy ((char *) p, txt.length(), 0);
-               ((char*)p)[txt.length()] = '\0';
+               txt.copy (const_cast<char *> (p), txt.length(), 0);
+               const_cast<char*>(p)[txt.length()] = '\0';
 
                while (p)
                {
@@ -3165,7 +3216,7 @@ Editor::new_tempo_section ()
 void
 Editor::map_transport_state ()
 {
-       ENSURE_GUI_THREAD (*this, &Editor::map_transport_state)
+       ENSURE_GUI_THREAD (*this, &Editor::map_transport_state);
 
        if (_session && _session->transport_stopped()) {
                have_pending_keyboard_selection = false;
@@ -3225,19 +3276,13 @@ Editor::history_changed ()
 }
 
 void
-Editor::duplicate_dialog (bool with_dialog)
+Editor::duplicate_range (bool with_dialog)
 {
        float times = 1.0f;
 
-       if (mouse_mode == MouseRange) {
-               if (selection->time.length() == 0) {
-                       return;
-               }
-       }
-
        RegionSelection rs = get_regions_from_selection_and_entered ();
 
-       if (mouse_mode != MouseRange && rs.empty()) {
+       if ( selection->time.length() == 0 && rs.empty()) {
                return;
        }
 
@@ -3270,8 +3315,6 @@ Editor::duplicate_dialog (bool with_dialog)
                win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
                win.set_default_response (RESPONSE_ACCEPT);
 
-               win.set_position (WIN_POS_MOUSE);
-
                spinner.grab_focus ();
 
                switch (win.run ()) {
@@ -3284,8 +3327,15 @@ Editor::duplicate_dialog (bool with_dialog)
                times = adjustment.get_value();
        }
 
-       if (mouse_mode == MouseRange) {
-               duplicate_selection (times);
+       if ((current_mouse_mode() == Editing::MouseRange)) {
+               if (selection->time.length()) {
+                       duplicate_selection (times);
+               }
+       } else if (get_smart_mode()) {
+               if (selection->time.length()) {
+                       duplicate_selection (times);
+               } else 
+                       duplicate_some_regions (rs, times);
        } else {
                duplicate_some_regions (rs, times);
        }
@@ -3529,6 +3579,31 @@ Editor::set_zoom_focus (ZoomFocus f)
        }
 }
 
+void
+Editor::cycle_zoom_focus ()
+{
+       switch (zoom_focus) {
+       case ZoomFocusLeft:
+               set_zoom_focus (ZoomFocusRight);
+               break;
+       case ZoomFocusRight:
+               set_zoom_focus (ZoomFocusCenter);
+               break;
+       case ZoomFocusCenter:
+               set_zoom_focus (ZoomFocusPlayhead);
+               break;
+       case ZoomFocusPlayhead:
+               set_zoom_focus (ZoomFocusMouse);
+               break;
+       case ZoomFocusMouse:
+               set_zoom_focus (ZoomFocusEdit);
+               break;
+       case ZoomFocusEdit:
+               set_zoom_focus (ZoomFocusLeft);
+               break;
+       }
+}
+
 void
 Editor::ensure_float (Window& win)
 {
@@ -3628,10 +3703,17 @@ Editor::set_show_measures (bool yn)
                hide_measures ();
 
                if ((_show_measures = yn) == true) {
-                       if (tempo_lines)
+                       if (tempo_lines) {
                                tempo_lines->show();
-                       draw_measures ();
-               }
+                       }
+
+                       ARDOUR::TempoMap::BBTPointList::const_iterator begin;
+                       ARDOUR::TempoMap::BBTPointList::const_iterator end;
+                       
+                       compute_current_bbt_points (leftmost_frame, leftmost_frame + current_page_samples(), begin, end);
+                       draw_measures (begin, end);
+               } 
+
                instant_save ();
        }
 }
@@ -3905,6 +3987,15 @@ Editor::session_state_saved (string)
        _snapshots->redisplay ();
 }
 
+void
+Editor::update_tearoff_visibility()
+{
+       bool visible = Config->get_keep_tearoffs();
+       _mouse_mode_tearoff->set_visible (visible);
+       _tools_tearoff->set_visible (visible);
+       _zoom_tearoff->set_visible (visible);
+}
+
 void
 Editor::maximise_editing_space ()
 {
@@ -3914,15 +4005,6 @@ Editor::maximise_editing_space ()
 
        fullscreen ();
 
-       if (!Config->get_keep_tearoffs()) {
-               /* these calls will leave each tearoff visible *if* it is torn off, 
-                  but invisible otherwise.
-               */
-               _mouse_mode_tearoff->set_visible (false);
-               _tools_tearoff->set_visible (false);
-               _zoom_tearoff->set_visible (false);
-       }
-
        _maximised = true;
 }
 
@@ -3935,18 +4017,12 @@ Editor::restore_editing_space ()
 
        unfullscreen();
 
-       if (!Config->get_keep_tearoffs()) {
-               _mouse_mode_tearoff->set_visible (true);
-               _tools_tearoff->set_visible (true);
-               _zoom_tearoff->set_visible (true);
-       }
-
        _maximised = false;
 }
 
 /**
  *  Make new playlists for a given track and also any others that belong
- *  to the same active route group with the `edit' property.
+ *  to the same active route group with the `select' property.
  *  @param v Track.
  */
 
@@ -3956,13 +4032,13 @@ Editor::new_playlists (TimeAxisView* v)
        begin_reversible_command (_("new playlists"));
        vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
        _session->playlists->get (playlists);
-       mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, ARDOUR::Properties::edit.property_id);
+       mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, ARDOUR::Properties::select.property_id);
        commit_reversible_command ();
 }
 
 /**
  *  Use a copy of the current playlist for a given track and also any others that belong
- *  to the same active route group with the `edit' property.
+ *  to the same active route group with the `select' property.
  *  @param v Track.
  */
 
@@ -3972,12 +4048,12 @@ Editor::copy_playlists (TimeAxisView* v)
        begin_reversible_command (_("copy playlists"));
        vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
        _session->playlists->get (playlists);
-       mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, ARDOUR::Properties::edit.property_id);
+       mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, ARDOUR::Properties::select.property_id);
        commit_reversible_command ();
 }
 
 /** Clear the current playlist for a given track and also any others that belong
- *  to the same active route group with the `edit' property.
+ *  to the same active route group with the `select' property.
  *  @param v Track.
  */
 
@@ -3987,7 +4063,7 @@ Editor::clear_playlists (TimeAxisView* v)
        begin_reversible_command (_("clear playlists"));
        vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
        _session->playlists->get (playlists);
-       mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, ARDOUR::Properties::edit.property_id);
+       mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, ARDOUR::Properties::select.property_id);
        commit_reversible_command ();
 }
 
@@ -4028,19 +4104,31 @@ Editor::on_key_release_event (GdkEventKey* ev)
 void
 Editor::reset_x_origin (framepos_t frame)
 {
-       queue_visual_change (frame);
+       pending_visual_change.add (VisualChange::TimeOrigin);
+       pending_visual_change.time_origin = frame;
+       ensure_visual_change_idle_handler ();
 }
 
 void
 Editor::reset_y_origin (double y)
 {
-       queue_visual_change_y (y);
+       pending_visual_change.add (VisualChange::YOrigin);
+       pending_visual_change.y_origin = y;
+       ensure_visual_change_idle_handler ();
 }
 
 void
-Editor::reset_zoom (double fpu)
+Editor::reset_zoom (framecnt_t spp)
 {
-       queue_visual_change (fpu);
+       clamp_samples_per_pixel (spp);
+
+       if (spp == samples_per_pixel) {
+               return;
+       }
+
+       pending_visual_change.add (VisualChange::ZoomLevel);
+       pending_visual_change.samples_per_pixel = spp;
+       ensure_visual_change_idle_handler ();
 }
 
 void
@@ -4069,7 +4157,7 @@ Editor::current_visual_state (bool with_tracks)
 {
        VisualState* vs = new VisualState (with_tracks);
        vs->y_position = vertical_adjustment.get_value();
-       vs->frames_per_unit = frames_per_unit;
+       vs->samples_per_pixel = samples_per_pixel;
        vs->leftmost_frame = leftmost_frame;
        vs->zoom_focus = zoom_focus;
 
@@ -4131,7 +4219,7 @@ Editor::use_visual_state (VisualState& vs)
        vertical_adjustment.set_value (vs.y_position);
 
        set_zoom_focus (vs.zoom_focus);
-       reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
+       reposition_and_zoom (vs.leftmost_frame, vs.samples_per_pixel);
        
        if (vs.gui_state) {
                *ARDOUR_UI::instance()->gui_object_state = *vs.gui_state;
@@ -4145,51 +4233,29 @@ Editor::use_visual_state (VisualState& vs)
        _routes->resume_redisplay ();
 }
 
+/** This is the core function that controls the zoom level of the canvas. It is called
+ *  whenever one or more calls are made to reset_zoom().  It executes in an idle handler.
+ *  @param fpu New frames per unit; should already have been clamped so that it is sensible.
+ */
 void
-Editor::set_frames_per_unit (double fpu)
+Editor::set_samples_per_pixel (framecnt_t spp)
 {
-       /* this is the core function that controls the zoom level of the canvas. it is called
-          whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
-       */
-
-       if (fpu == frames_per_unit) {
-               return;
-       }
-
-       if (fpu < 2.0) {
-               fpu = 2.0;
-       }
-
-
-       /* don't allow zooms that fit more than the maximum number
-          of frames into an 800 pixel wide space.
-       */
-
-       if (max_framepos / fpu < 800.0) {
-               return;
-       }
+       clamp_samples_per_pixel (spp);
+       samples_per_pixel = spp;
 
-       if (tempo_lines)
+       if (tempo_lines) {
                tempo_lines->tempo_map_changed();
+       }
 
-       frames_per_unit = fpu;
-       post_zoom ();
-}
-
-void
-Editor::post_zoom ()
-{
-       // convert fpu to frame count
+       /* convert fpu to frame count */
 
-       framepos_t frames = (framepos_t) floor (frames_per_unit * _canvas_width);
+       framepos_t frames = samples_per_pixel * _visible_canvas_width;
 
-       if (frames_per_unit != zoom_range_clock->current_duration()) {
+       if (samples_per_pixel != zoom_range_clock->current_duration()) {
                zoom_range_clock->set (frames);
        }
 
-       bool const showing_time_selection =
-               mouse_mode == MouseRange ||
-               (mouse_mode == MouseObject && _join_object_range_state != JOIN_OBJECT_RANGE_NONE);
+       bool const showing_time_selection = selection->time.length() > 0;
 
        if (showing_time_selection && selection->time.start () != selection->time.end_frame ()) {
                for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
@@ -4202,7 +4268,7 @@ Editor::post_zoom ()
        //reset_scrolling_region ();
 
        if (playhead_cursor) {
-               playhead_cursor->set_position (playhead_cursor->current_frame);
+               playhead_cursor->set_position (playhead_cursor->current_frame ());
        }
 
        refresh_location_display();
@@ -4214,28 +4280,15 @@ Editor::post_zoom ()
 }
 
 void
-Editor::queue_visual_change (framepos_t where)
+Editor::queue_visual_videotimeline_update ()
 {
-       pending_visual_change.add (VisualChange::TimeOrigin);
-       pending_visual_change.time_origin = where;
-       ensure_visual_change_idle_handler ();
-}
-
-void
-Editor::queue_visual_change (double fpu)
-{
-       pending_visual_change.add (VisualChange::ZoomLevel);
-       pending_visual_change.frames_per_unit = fpu;
-
-       ensure_visual_change_idle_handler ();
-}
-
-void
-Editor::queue_visual_change_y (double y)
-{
-       pending_visual_change.add (VisualChange::YOrigin);
-       pending_visual_change.y_origin = y;
-
+       /* TODO:
+        * pending_visual_change.add (VisualChange::VideoTimeline);
+        * or maybe even more specific: which videotimeline-image
+        * currently it calls update_video_timeline() to update
+        * _all outdated_ images on the video-timeline.
+        * see 'exposeimg()' in video_image_frame.cc
+        */
        ensure_visual_change_idle_handler ();
 }
 
@@ -4244,6 +4297,7 @@ Editor::ensure_visual_change_idle_handler ()
 {
        if (pending_visual_change.idle_handler_id < 0) {
                pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
+               pending_visual_change.being_handled = false;
        }
 }
 
@@ -4256,22 +4310,46 @@ Editor::_idle_visual_changer (void* arg)
 int
 Editor::idle_visual_changer ()
 {
+       /* set_horizontal_position() below (and maybe other calls) call
+          gtk_main_iteration(), so it's possible that a signal will be handled
+          half-way through this method.  If this signal wants an
+          idle_visual_changer we must schedule another one after this one, so
+          mark the idle_handler_id as -1 here to allow that.  Also make a note
+          that we are doing the visual change, so that changes in response to
+          super-rapid-screen-update can be dropped if we are still processing
+          the last one.
+       */
+
+       pending_visual_change.idle_handler_id = -1;
+       pending_visual_change.being_handled = true;
+       
        VisualChange::Type p = pending_visual_change.pending;
        pending_visual_change.pending = (VisualChange::Type) 0;
 
        double const last_time_origin = horizontal_position ();
 
+
        if (p & VisualChange::ZoomLevel) {
-               set_frames_per_unit (pending_visual_change.frames_per_unit);
+               set_samples_per_pixel (pending_visual_change.samples_per_pixel);
 
                compute_fixed_ruler_scale ();
-               compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
-               compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
-               update_tempo_based_rulers ();
+
+               ARDOUR::TempoMap::BBTPointList::const_iterator current_bbt_points_begin;
+               ARDOUR::TempoMap::BBTPointList::const_iterator current_bbt_points_end;
+               
+               compute_current_bbt_points (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_samples(),
+                                           current_bbt_points_begin, current_bbt_points_end);
+               compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_samples(),
+                                        current_bbt_points_begin, current_bbt_points_end);
+               update_tempo_based_rulers (current_bbt_points_begin, current_bbt_points_end);
+
+               update_video_timeline();
        }
+
        if (p & VisualChange::TimeOrigin) {
-               set_horizontal_position (pending_visual_change.time_origin / frames_per_unit);
+               set_horizontal_position (pending_visual_change.time_origin / samples_per_pixel);
        }
+
        if (p & VisualChange::YOrigin) {
                vertical_adjustment.set_value (pending_visual_change.y_origin);
        }
@@ -4282,9 +4360,13 @@ Editor::idle_visual_changer ()
                redisplay_tempo (true);
        }
 
+       if (!(p & VisualChange::ZoomLevel)) {
+               update_video_timeline();
+       }
+
        _summary->set_overlays_dirty ();
 
-       pending_visual_change.idle_handler_id = -1;
+       pending_visual_change.being_handled = false;
        return 0; /* this is always a one-shot call */
 }
 
@@ -4309,7 +4391,7 @@ Editor::get_preferred_edit_position (bool ignore_playhead, bool from_context_men
        EditPoint ep = _edit_point;
 
        if (from_context_menu && (ep == EditAtMouse)) {
-               return  event_frame (&context_click_event, 0, 0);
+               return  window_event_frame (&context_click_event, 0, 0);
        }
 
        if (entered_marker) {
@@ -4394,7 +4476,7 @@ Editor::set_punch_range (framepos_t start, framepos_t end, string cmd)
        Location* tpl;
 
        if ((tpl = transport_punch_location()) == 0) {
-               Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoPunch);
+               Location* loc = new Location (*_session, start, end, _("Punch"),  Location::IsAutoPunch);
                XMLNode &before = _session->locations()->get_state();
                _session->locations()->add (loc, true);
                _session->set_auto_loop_location (loc);
@@ -4479,7 +4561,7 @@ Editor::get_regions_after (RegionSelection& rs, framepos_t where, const TrackVie
                                        RegionView* rv = rtv->view()->find_view (*i);
 
                                        if (rv) {
-                                               rs.push_back (rv);
+                                               rs.add (rv);
                                        }
                                }
                        }
@@ -4487,33 +4569,16 @@ Editor::get_regions_after (RegionSelection& rs, framepos_t where, const TrackVie
        }
 }
 
-/** Start with regions that are selected.  Then add equivalent regions
- *  on tracks in the same active edit-enabled route group as any of
- *  the regions that we started with.
- */
-
-RegionSelection
-Editor::get_regions_from_selection ()
-{
-       return get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
-}
-
 /** Get regions using the following method:
  *
- *  Make an initial region list using the selected regions, unless
+ *  Make a region list using the selected regions, unless
  *  the edit point is `mouse' and the mouse is over an unselected
- *  region.  In this case, start with just that region.
+ *  region.  In this case, use just that region.
  *
- *  Then, make an initial track list of the tracks that these
- *  regions are on, and if the edit point is not `mouse', add the
- *  selected tracks.
- *
- *  Look at this track list and add any other tracks that are on the
- *  same active edit-enabled route group as one of the initial tracks.
- *
- *  Finally take the initial region list and add any regions that are
- *  under the edit point on one of the tracks on the track list to get
- *  the returned region list.
+ *  If the edit point is not 'mouse', and there are no regions selected,
+ *  search the list of selected tracks and return regions that are under
+ *  the edit point on these tracks. If there are no selected tracks and
+ *  'No Selection = All Tracks' is active, search all tracks,
  *
  *  The rationale here is that the mouse edit point is special in that
  *  its position describes both a time and a track; the other edit
@@ -4535,30 +4600,25 @@ Editor::get_regions_from_selection_and_edit_point ()
                regions = selection->regions;
        }
 
-       TrackViewList tracks;
-
-       if (_edit_point != EditAtMouse) {
-               tracks = selection->tracks;
-       }
-
-       /* Add any other tracks that have regions that are in the same
-          edit-activated route group as one of our regions.
-        */
-       for (RegionSelection::iterator i = regions.begin (); i != regions.end(); ++i) {
 
-               RouteGroup* g = (*i)->get_time_axis_view().route_group ();
+       if (regions.empty() && _edit_point != EditAtMouse) {
+               TrackViewList tracks = selection->tracks;
 
-               if (g && g->is_active() && g->is_edit()) {
-                       tracks.add (axis_views_from_routes (g->route_list()));
+               if (_route_groups->all_group_active_button().get_active() && tracks.empty()) {
+                       /* tracks is empty (no track selected), and 'No Selection = All Tracks'
+                        * is enabled, so consider all tracks
+                        */
+                       tracks = track_views; 
                }
-       }
 
-       if (!tracks.empty()) {
-               /* now find regions that are at the edit position on those tracks */
-               framepos_t const where = get_preferred_edit_position ();
-               get_regions_at (regions, where, tracks);
+               if (!tracks.empty()) {
+                       /* no region selected or entered, but some selected tracks:
+                        * act on all regions on the selected tracks at the edit point
+                        */ 
+                       framepos_t const where = get_preferred_edit_position ();
+                       get_regions_at(regions, where, tracks);
+               }
        }
-
        return regions;
 }
 
@@ -4576,11 +4636,11 @@ Editor::get_regions_from_selection_and_entered ()
                regions.add (entered_regionview);
        }
 
-       return get_equivalent_regions (regions, ARDOUR::Properties::edit.property_id);
+       return regions;
 }
 
 void
-Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
+Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions, bool src_comparison)
 {
        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 
@@ -4599,7 +4659,11 @@ Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<R
                        }
 
                        if ((pl = (tr->playlist())) != 0) {
-                               pl->get_region_list_equivalent_regions (region, results);
+                               if (src_comparison) {
+                                       pl->get_source_equivalent_regions (region, results);
+                               } else {
+                                       pl->get_region_list_equivalent_regions (region, results);
+                               }
                        }
 
                        for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
@@ -4707,7 +4771,6 @@ Editor::idle_resize ()
        }
 
        _pending_resize_amount = 0;
-       flush_canvas ();
        _group_tabs->set_dirty ();
        resize_idle_id = -1;
 
@@ -4719,9 +4782,11 @@ Editor::located ()
 {
        ENSURE_GUI_THREAD (*this, &Editor::located);
 
-       playhead_cursor->set_position (_session->audible_frame ());
-       if (_follow_playhead && !_pending_initial_locate) {
-               reset_x_origin_to_follow_playhead ();
+       if (_session) {
+               playhead_cursor->set_position (_session->audible_frame ());
+               if (_follow_playhead && !_pending_initial_locate) {
+                       reset_x_origin_to_follow_playhead ();
+               }
        }
 
        _pending_locate_request = false;
@@ -4771,9 +4836,8 @@ Editor::axis_views_from_routes (boost::shared_ptr<RouteList> r) const
        return t;
 }
 
-
 void
-Editor::handle_new_route (RouteList& routes)
+Editor::add_routes (RouteList& routes)
 {
        ENSURE_GUI_THREAD (*this, &Editor::handle_new_route, routes)
 
@@ -4783,17 +4847,17 @@ Editor::handle_new_route (RouteList& routes)
        for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
                boost::shared_ptr<Route> route = (*x);
 
-               if (route->is_hidden() || route->is_monitor()) {
+               if (route->is_auditioner() || route->is_monitor()) {
                        continue;
                }
 
                DataType dt = route->input()->default_type();
 
                if (dt == ARDOUR::DataType::AUDIO) {
-                       rtv = new AudioTimeAxisView (*this, _session, *track_canvas);
+                       rtv = new AudioTimeAxisView (*this, _session, *_track_canvas);
                        rtv->set_route (route);
                } else if (dt == ARDOUR::DataType::MIDI) {
-                       rtv = new MidiTimeAxisView (*this, _session, *track_canvas);
+                       rtv = new MidiTimeAxisView (*this, _session, *_track_canvas);
                        rtv->set_route (route);
                } else {
                        throw unknown_type();
@@ -5096,16 +5160,16 @@ Editor::scroll_release ()
 void
 Editor::reset_x_origin_to_follow_playhead ()
 {
-       framepos_t const frame = playhead_cursor->current_frame;
+       framepos_t const frame = playhead_cursor->current_frame ();
 
-       if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
+       if (frame < leftmost_frame || frame > leftmost_frame + current_page_samples()) {
 
                if (_session->transport_speed() < 0) {
 
-                       if (frame > (current_page_frames() / 2)) {
-                               center_screen (frame-(current_page_frames()/2));
+                       if (frame > (current_page_samples() / 2)) {
+                               center_screen (frame-(current_page_samples()/2));
                        } else {
-                               center_screen (current_page_frames()/2);
+                               center_screen (current_page_samples()/2);
                        }
 
                } else {
@@ -5116,10 +5180,10 @@ Editor::reset_x_origin_to_follow_playhead ()
                                /* moving left */
                                if (_session->transport_rolling()) {
                                        /* rolling; end up with the playhead at the right of the page */
-                                       l = frame - current_page_frames ();
+                                       l = frame - current_page_samples ();
                                } else {
                                        /* not rolling: end up with the playhead 1/4 of the way along the page */
-                                       l = frame - current_page_frames() / 4;
+                                       l = frame - current_page_samples() / 4;
                                }
                        } else {
                                /* moving right */
@@ -5128,7 +5192,7 @@ Editor::reset_x_origin_to_follow_playhead ()
                                        l = frame;
                                } else {
                                        /* not rolling: end up with the playhead 3/4 of the way along the page */
-                                       l = frame - 3 * current_page_frames() / 4;
+                                       l = frame - 3 * current_page_samples() / 4;
                                }
                        }
 
@@ -5136,7 +5200,7 @@ Editor::reset_x_origin_to_follow_playhead ()
                                l = 0;
                        }
                        
-                       center_screen_internal (l + (current_page_frames() / 2), current_page_frames ());
+                       center_screen_internal (l + (current_page_samples() / 2), current_page_samples ());
                }
        }
 }
@@ -5189,7 +5253,14 @@ Editor::super_rapid_screen_update ()
 
                if (!_stationary_playhead) {
 
-                       if (!_dragging_playhead && _follow_playhead && _session->requested_return_frame() < 0) {
+                       if (!_dragging_playhead && _follow_playhead && _session->requested_return_frame() < 0 && !pending_visual_change.being_handled) {
+                               /* We only do this if we aren't already
+                                  handling a visual change (ie if
+                                  pending_visual_change.being_handled is
+                                  false) so that these requests don't stack
+                                  up there are too many of them to handle in
+                                  time.
+                               */
                                reset_x_origin_to_follow_playhead ();
                        }
 
@@ -5200,11 +5271,11 @@ Editor::super_rapid_screen_update ()
                        */
 #if 0
                        // FIXME DO SOMETHING THAT WORKS HERE - this is 2.X code
-                       double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
+                       double target = ((double)frame - (double)current_page_samples()/2.0) / samples_per_pixel;
                        if (target <= 0.0) {
                                target = 0.0;
                        }
-                       if (fabs(target - current) < current_page_frames() / frames_per_unit) {
+                       if (fabs(target - current) < current_page_samples() / samples_per_pixel) {
                                target = (target * 0.15) + (current * 0.85);
                        } else {
                                /* relax */
@@ -5239,7 +5310,7 @@ Editor::session_going_away ()
        last_update_frame = 0;
        _drags->abort ();
 
-       playhead_cursor->canvas_item.hide ();
+       playhead_cursor->hide ();
 
        /* rip everything out of the list displays */
 
@@ -5277,8 +5348,8 @@ Editor::session_going_away ()
        hide_measures ();
        clear_marker_display ();
 
-       current_bbt_points_begin = current_bbt_points_end;
-
+       stop_step_editing ();
+       
        /* get rid of any existing editor mixer strip */
 
        WindowTitle title(Glib::get_application_name());
@@ -5326,7 +5397,6 @@ Editor::change_region_layering_order (bool from_context_menu)
 
        if (layering_order_editor == 0) {
                layering_order_editor = new RegionLayeringOrderEditor (*this);
-               layering_order_editor->set_position (WIN_POS_MOUSE);
        }
 
        layering_order_editor->set_context (clicked_routeview->name(), _session, clicked_routeview, pl, position);
@@ -5344,23 +5414,29 @@ Editor::update_region_layering_order_editor ()
 void
 Editor::setup_fade_images ()
 {
-       _fade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("crossfade-in-linear")));
-       _fade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("crossfade-in-short-cut")));
-       _fade_in_images[FadeLogB] = new Gtk::Image (get_icon_path (X_("crossfade-in-slow-cut")));
-       _fade_in_images[FadeLogA] = new Gtk::Image (get_icon_path (X_("crossfade-in-fast-cut")));
-       _fade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("crossfade-in-long-cut")));
-
-       _fade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("crossfade-out-linear")));
-       _fade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("crossfade-out-short-cut")));
-       _fade_out_images[FadeLogB] = new Gtk::Image (get_icon_path (X_("crossfade-out-slow-cut")));
-       _fade_out_images[FadeLogA] = new Gtk::Image (get_icon_path (X_("crossfade-out-fast-cut")));
-       _fade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("crossfade-out-long-cut")));
+       _fade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadein-linear")));
+       _fade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadein-short-cut")));
+       _fade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadein-slow-cut")));
+       _fade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadein-fast-cut")));
+       _fade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadein-long-cut")));
+
+       _fade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
+       _fade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-short-cut")));
+       _fade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
+       _fade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
+       _fade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-long-cut")));
+       
+       _xfade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
+       _xfade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-short-cut")));
+       _xfade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
+       _xfade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
+       _xfade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-long-cut")));
 
-       _xfade_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("crossfade-out-linear")));
-       _xfade_images[FadeFast] = new Gtk::Image (get_icon_path (X_("crossfade-out-short-cut")));
-       _xfade_images[FadeLogB] = new Gtk::Image (get_icon_path (X_("crossfade-out-slow-cut")));
-       _xfade_images[FadeLogA] = new Gtk::Image (get_icon_path (X_("crossfade-out-fast-cut")));
-       _xfade_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("crossfade-out-long-cut")));
+       _xfade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
+       _xfade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-short-cut")));
+       _xfade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
+       _xfade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
+       _xfade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-long-cut")));
 
 }
 
@@ -5433,3 +5509,8 @@ Editor::popup_control_point_context_menu (ArdourCanvas::Item* item, GdkEvent* ev
        _control_point_context_menu.popup (event->button.button, event->button.time);
 }
 
+void
+Editor::shift_key_released ()
+{
+       _stepping_axis_view = 0;
+}