merge from 2.0-ongoing by hand, minus key binding editor
[ardour.git] / gtk2_ardour / editor_mouse.cc
index 7290df330a30642713a040b4a5bd8aae78a777bd..da95d50d95949e8088db8361d67a6d1850879f80 100644 (file)
@@ -39,6 +39,7 @@
 #include "streamview.h"
 #include "region_gain_line.h"
 #include "automation_time_axis.h"
+#include "control_point.h"
 #include "prompter.h"
 #include "utils.h"
 #include "selection.h"
@@ -159,6 +160,12 @@ Editor::mouse_mode_toggled (MouseMode m)
                        set_mouse_mode (m);
                }
                break;
+       
+       case MouseNote:
+               if (mouse_note_button.get_active()) {
+                       set_mouse_mode (m);
+               }
+               break;
 
        default:
                break;
@@ -206,7 +213,7 @@ Editor::set_mouse_mode (MouseMode m, bool force)
                }
        }
 
-       /* XXX the hack of unsetting all other buttongs should go 
+       /* XXX the hack of unsetting all other buttons should go 
           away once GTK2 allows us to use regular radio buttons drawn like
           normal buttons, rather than my silly GroupedButton hack.
        */
@@ -243,12 +250,22 @@ Editor::set_mouse_mode (MouseMode m, bool force)
                mouse_audition_button.set_active (true);
                current_canvas_cursor = speaker_cursor;
                break;
+       
+       case MouseNote:
+               mouse_note_button.set_active (true);
+               set_midi_edit_cursor (current_midi_edit_mode());
+               break;
        }
 
+       if (mouse_mode == MouseNote)
+               midi_toolbar_frame.show();
+       else
+               midi_toolbar_frame.hide();
+
        ignore_mouse_mode_toggle = false;
 
        if (is_drawable()) {
-               track_canvas.get_window()->set_cursor(*current_canvas_cursor);
+               track_canvas.get_window()->set_cursor(*current_canvas_cursor);
        }
 }
 
@@ -285,6 +302,101 @@ Editor::step_mouse_mode (bool next)
                if (next) set_mouse_mode (MouseObject);
                else set_mouse_mode (MouseTimeFX);
                break;
+       
+       case MouseNote:
+               if (next) set_mouse_mode (MouseObject);
+               else set_mouse_mode (MouseAudition);
+               break;
+       }
+}
+
+void
+Editor::midi_edit_mode_toggled (MidiEditMode m)
+{
+       if (ignore_midi_edit_mode_toggle) {
+               return;
+       }
+
+       switch (m) {
+       case MidiEditSelect:
+               if (midi_tool_select_button.get_active()) {
+                       set_midi_edit_mode (m);
+               }
+               break;
+       
+       case MidiEditPencil:
+               if (midi_tool_pencil_button.get_active()) {
+                       set_midi_edit_mode (m);
+               }
+               break;
+       
+       case MidiEditErase:
+               if (midi_tool_erase_button.get_active()) {
+                       set_midi_edit_mode (m);
+               }
+               break;
+
+       default:
+               break;
+       }
+
+       set_midi_edit_cursor(m);
+}      
+
+
+void
+Editor::set_midi_edit_mode (MidiEditMode m, bool force)
+{
+       if (drag_info.item) {
+               return;
+       }
+
+       if (!force && m == midi_edit_mode) {
+               return;
+       }
+       
+       midi_edit_mode = m;
+
+       instant_save ();
+       
+       ignore_midi_edit_mode_toggle = true;
+
+       switch (midi_edit_mode) {
+       case MidiEditSelect:
+               midi_tool_select_button.set_active (true);
+               break;
+       
+       case MidiEditPencil:
+               midi_tool_pencil_button.set_active (true);
+               break;
+       
+       case MidiEditErase:
+               midi_tool_erase_button.set_active (true);
+               break;
+       }
+
+       ignore_midi_edit_mode_toggle = false;
+
+       set_midi_edit_cursor (current_midi_edit_mode());
+
+       if (is_drawable()) {
+               track_canvas.get_window()->set_cursor(*current_canvas_cursor);
+       }
+}
+
+void
+Editor::set_midi_edit_cursor (MidiEditMode m)
+{
+       switch (midi_edit_mode) {
+       case MidiEditSelect:
+               current_canvas_cursor = midi_select_cursor;
+               break;
+       case MidiEditPencil:
+               current_canvas_cursor = midi_pencil_cursor;
+               break;
+       case MidiEditErase:
+               current_canvas_cursor = midi_erase_cursor;
+               break;
        }
 }
 
@@ -337,8 +449,8 @@ Editor::button_selection (ArdourCanvas::Item* item, GdkEvent* event, ItemType it
                }
                break;
                
-       case RegionViewNameHighlight:
-       case RegionViewName:
+       case RegionViewNameHighlight:
+       case RegionViewName:
                if (mouse_mode != MouseRange) {
                        commit = set_selected_regionview_from_click (press, op, true);
                } else if (event->type == GDK_BUTTON_PRESS) {
@@ -346,6 +458,7 @@ Editor::button_selection (ArdourCanvas::Item* item, GdkEvent* event, ItemType it
                }
                break;
 
+
        case FadeInHandleItem:
        case FadeInItem:
        case FadeOutHandleItem:
@@ -356,10 +469,12 @@ Editor::button_selection (ArdourCanvas::Item* item, GdkEvent* event, ItemType it
                        commit = set_selected_track_from_click (press, op, false);
                }
                break;
-               
-       case GainAutomationControlPointItem:
-       case PanAutomationControlPointItem:
-       case RedirectAutomationControlPointItem:
+
+       case CrossfadeViewItem:
+               commit = set_selected_track_from_click (press, op, false);
+               break;
+                       
+       case ControlPointItem:
                commit = set_selected_track_from_click (press, op, true);
                if (mouse_mode != MouseRange) {
                        commit |= set_selected_control_point_from_click (op, false);
@@ -546,16 +661,12 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                                                return true;
                                        break;
 
-                               case GainAutomationControlPointItem:
-                               case PanAutomationControlPointItem:
-                               case RedirectAutomationControlPointItem:
+                               case ControlPointItem:
                                        start_control_point_grab (item, event);
                                        return true;
                                        break;
                                        
-                               case GainAutomationLineItem:
-                               case PanAutomationLineItem:
-                               case RedirectAutomationLineItem:
+                               case AutomationLineItem:
                                        start_line_grab_from_line (item, event);
                                        return true;
                                        break;
@@ -565,7 +676,7 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                                        start_rubberband_select (item, event);
                                        break;
                                        
-                               /* <CMT Additions> */
+#ifdef WITH_CMT
                                case ImageFrameHandleStartItem:
                                        imageframe_start_handle_op(item, event) ;
                                        return(true) ;
@@ -582,16 +693,13 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                                        markerview_item_end_handle_op(item, event) ;
                                        return(true) ;
                                        break ;
-                               /* </CMT Additions> */
-                               
-                               /* <CMT Additions> */
                                case MarkerViewItem:
                                        start_markerview_grab(item, event) ;
                                        break ;
                                case ImageFrameItem:
                                        start_imageframe_grab(item, event) ;
                                        break ;
-                               /* </CMT Additions> */
+#endif
 
                                case MarkerBarItem:
                                        
@@ -610,17 +718,11 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                                // start_line_grab_from_regionview (item, event);
                                break;
 
-                       case GainControlPointItem:
-                               start_control_point_grab (item, event);
-                               return true;
-                               
                        case GainLineItem:
                                start_line_grab_from_line (item, event);
                                return true;
 
-                       case GainAutomationControlPointItem:
-                       case PanAutomationControlPointItem:
-                       case RedirectAutomationControlPointItem:
+                       case ControlPointItem:
                                start_control_point_grab (item, event);
                                return true;
                                break;
@@ -632,15 +734,11 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                        break;
 
                        switch (item_type) {
-                       case GainAutomationControlPointItem:
-                       case PanAutomationControlPointItem:
-                       case RedirectAutomationControlPointItem:
+                       case ControlPointItem:
                                start_control_point_grab (item, event);
                                break;
 
-                       case GainAutomationLineItem:
-                       case PanAutomationLineItem:
-                       case RedirectAutomationLineItem:
+                       case AutomationLineItem:
                                start_line_grab_from_line (item, event);
                                break;
 
@@ -671,7 +769,12 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                        break;
 
                case MouseAudition:
-                       /* handled in release */
+                       _scrubbing = true;
+                       last_scrub_frame = 0;
+                       last_scrub_time = 0;
+                       have_full_mouse_speed = false;
+                       memset (mouse_speed, 0, sizeof (double) * mouse_speed_size);
+                       /* rest handled in motion & release */
                        break;
 
                default:
@@ -692,9 +795,7 @@ Editor::button_press_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemTyp
                                        }
                                        
                                        break;
-                               case GainAutomationControlPointItem:
-                               case PanAutomationControlPointItem:
-                               case RedirectAutomationControlPointItem:
+                               case ControlPointItem:
                                        start_control_point_grab (item, event);
                                        return true;
                                        break;
@@ -825,21 +926,22 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
                                break;
 
                        case StreamItem:
-                               popup_track_context_menu (1, event->button.time, item_type, false, where);
+                               popup_track_context_menu (1, event->button.time, where);
                                break;
                                
                        case RegionItem:
                        case RegionViewNameHighlight:
                        case RegionViewName:
-                               popup_track_context_menu (1, event->button.time, item_type, false, where);
+                               popup_track_context_menu (1, event->button.time, where);
                                break;
                                
                        case SelectionItem:
-                               popup_track_context_menu (1, event->button.time, item_type, true, where);
+                               popup_track_context_menu (1, event->button.time, where);
                                break;
 
                        case AutomationTrackItem:
-                               popup_track_context_menu (1, event->button.time, item_type, false, where);
+                       case CrossfadeViewItem:
+                               popup_track_context_menu (1, event->button.time, where);
                                break;
 
                        case MarkerBarItem: 
@@ -862,11 +964,7 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
                                tm_marker_context_menu (&event->button, item);
                                break;
 
-                       case CrossfadeViewItem:
-                               popup_track_context_menu (1, event->button.time, item_type, false, where);
-                               break;
-
-                       /* <CMT Additions> */
+#ifdef WITH_CMT
                        case ImageFrameItem:
                                popup_imageframe_edit_menu(1, event->button.time, item, true) ;
                                break ;
@@ -879,8 +977,7 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
                        case MarkerTimeAxisItem:
                                popup_marker_time_axis_edit_menu(1, event->button.time, item, false) ;
                                break ;
-                       /* <CMT Additions> */
-
+#endif
                                
                        default:
                                break;
@@ -913,18 +1010,14 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
                        }
                        break;
                        
-               case GainControlPointItem:
+               case ControlPointItem:
                        if (mouse_mode == MouseGain) {
                                remove_gain_control_point (item, event);
+                       } else {
+                               remove_control_point (item, event);
                        }
                        break;
 
-               case GainAutomationControlPointItem:
-               case PanAutomationControlPointItem:
-               case RedirectAutomationControlPointItem:
-                       remove_control_point (item, event);
-                       break;
-
                default:
                        break;
                }
@@ -940,9 +1033,7 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
                case PlayheadCursorItem:
                case MarkerItem:
                case GainLineItem:
-               case GainAutomationLineItem:
-               case PanAutomationLineItem:
-               case RedirectAutomationLineItem:
+               case AutomationLineItem:
                case StartSelectionTrimItem:
                case EndSelectionTrimItem:
                        return true;
@@ -1011,13 +1102,20 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
                        break;
                        
                case MouseAudition:
-                       switch (item_type) {
-                       case RegionItem:
-                               audition_selected_region ();
-                               break;
-                       default:
-                               break;
-                       }
+                       _scrubbing = false;
+                       if (last_scrub_frame == 0) {
+                               /* no drag, just a click */
+                               switch (item_type) {
+                               case RegionItem:
+                                       audition_selected_region ();
+                                       break;
+                               default:
+                                       break;
+                               }
+                       } else {
+                               /* make sure we stop */
+                               session->request_transport_speed (0.0);
+                       }
                        break;
 
                default:
@@ -1032,25 +1130,6 @@ Editor::button_release_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemT
        case 2:
                switch (mouse_mode) {
                        
-               case MouseObject:
-                       switch (item_type) {
-                       case RegionItem:
-                               if (Keyboard::modifier_state_equals (event->button.state, Keyboard::Shift)) {
-                                       raise_region ();
-                               } else if (Keyboard::modifier_state_equals (event->button.state, Keyboard::ModifierMask (Keyboard::Shift|Keyboard::Alt))) {
-                                       lower_region ();
-                               } else {
-                                       // Button2 click is unused
-                               }
-                               return true;
-                               
-                               break;
-                               
-                       default:
-                               break;
-                       }
-                       break;
-                       
                case MouseRange:
                        
                        // x_style_paste (where, 1.0);
@@ -1080,32 +1159,7 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
        double fraction;
        
        switch (item_type) {
-       case GainControlPointItem:
-               if (mouse_mode == MouseGain) {
-                       cp = static_cast<ControlPoint*>(item->get_data ("control_point"));
-                       cp->set_visible (true);
-
-                       double at_x, at_y;
-                       at_x = cp->get_x();
-                       at_y = cp->get_y ();
-                       cp->item->i2w (at_x, at_y);
-                       at_x += 20.0;
-                       at_y += 20.0;
-
-                       fraction = 1.0 - (cp->get_y() / cp->line.height());
-
-                       set_verbose_canvas_cursor (cp->line.get_verbose_cursor_string (fraction), at_x, at_y);
-                       show_verbose_canvas_cursor ();
-
-                       if (is_drawable()) {
-                               track_canvas.get_window()->set_cursor (*fader_cursor);
-                       }
-               }
-               break;
-
-       case GainAutomationControlPointItem:
-       case PanAutomationControlPointItem:
-       case RedirectAutomationControlPointItem:
+       case ControlPointItem:
                if (mouse_mode == MouseGain || mouse_mode == MouseObject) {
                        cp = static_cast<ControlPoint*>(item->get_data ("control_point"));
                        cp->set_visible (true);
@@ -1113,13 +1167,13 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
                        double at_x, at_y;
                        at_x = cp->get_x();
                        at_y = cp->get_y ();
-                       cp->item->i2w (at_x, at_y);
+                       cp->item()->i2w (at_x, at_y);
                        at_x += 20.0;
                        at_y += 20.0;
 
-                       fraction = 1.0 - (cp->get_y() / cp->line.height());
+                       fraction = 1.0 - (cp->get_y() / cp->line().height());
 
-                       set_verbose_canvas_cursor (cp->line.get_verbose_cursor_string (fraction), at_x, at_y);
+                       set_verbose_canvas_cursor (cp->line().get_verbose_cursor_string (fraction), at_x, at_y);
                        show_verbose_canvas_cursor ();
 
                        if (is_drawable()) {
@@ -1132,21 +1186,19 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
                if (mouse_mode == MouseGain) {
                        ArdourCanvas::Line *line = dynamic_cast<ArdourCanvas::Line *> (item);
                        if (line)
-                               line->property_fill_color_rgba() = color_map[cEnteredGainLine];
+                               line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_EnteredGainLine.get();
                        if (is_drawable()) {
                                track_canvas.get_window()->set_cursor (*fader_cursor);
                        }
                }
                break;
                        
-       case GainAutomationLineItem:
-       case RedirectAutomationLineItem:
-       case PanAutomationLineItem:
+       case AutomationLineItem:
                if (mouse_mode == MouseGain || mouse_mode == MouseObject) {
                        {
                                ArdourCanvas::Line *line = dynamic_cast<ArdourCanvas::Line *> (item);
                                if (line)
-                                       line->property_fill_color_rgba() = color_map[cEnteredAutomationLine];
+                                       line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_EnteredAutomationLine.get();
                        }
                        if (is_drawable()) {
                                track_canvas.get_window()->set_cursor (*fader_cursor);
@@ -1162,12 +1214,13 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
 
        case StartSelectionTrimItem:
        case EndSelectionTrimItem:
-       /* <CMT Additions> */
+
+#ifdef WITH_CMT
        case ImageFrameHandleStartItem:
        case ImageFrameHandleEndItem:
        case MarkerViewHandleStartItem:
        case MarkerViewHandleEndItem:
-       /* </CMT Additions> */
+#endif
 
                if (is_drawable()) {
                        track_canvas.get_window()->set_cursor (*trimmer_cursor);
@@ -1195,7 +1248,7 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
 
        case AutomationTrackItem:
                if (is_drawable()) {
-                       Gdk::Cursor *cursor;
+                       Gdk::Cursor *cursor;
                        switch (mouse_mode) {
                        case MouseRange:
                                cursor = selector_cursor;
@@ -1232,7 +1285,7 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
                if ((marker = static_cast<Marker *> (item->get_data ("marker"))) == 0) {
                        break;
                }
-               marker->set_color_rgba (color_map[cEnteredMarker]);
+               marker->set_color_rgba (ARDOUR_UI::config()->canvasvar_EnteredMarker.get());
                // fall through
        case MeterMarkerItem:
        case TempoMarkerItem:
@@ -1260,13 +1313,8 @@ Editor::enter_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
 
        switch (item_type) {
        case GainLineItem:
-       case GainAutomationLineItem:
-       case RedirectAutomationLineItem:
-       case PanAutomationLineItem:
-       case GainControlPointItem:
-       case GainAutomationControlPointItem:
-       case PanAutomationControlPointItem:
-       case RedirectAutomationControlPointItem:
+       case AutomationLineItem:
+       case ControlPointItem:
                /* these do not affect the current entered track state */
                clear_entered_track = false;
                break;
@@ -1294,13 +1342,10 @@ Editor::leave_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
        bool is_start;
 
        switch (item_type) {
-       case GainControlPointItem:
-       case GainAutomationControlPointItem:
-       case PanAutomationControlPointItem:
-       case RedirectAutomationControlPointItem:
+       case ControlPointItem:
                cp = reinterpret_cast<ControlPoint*>(item->get_data ("control_point"));
-               if (cp->line.npoints() > 1) {
-                       if (!cp->selected) {
+               if (cp->line().the_list()->interpolation() != AutomationList::Discrete) {
+                       if (cp->line().npoints() > 1 && !cp->selected()) {
                                cp->set_visible (false);
                        }
                }
@@ -1317,21 +1362,21 @@ Editor::leave_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_
        case EndSelectionTrimItem:
        case EditCursorItem:
        case PlayheadCursorItem:
-       /* <CMT Additions> */
+
+#ifdef WITH_CMT
        case ImageFrameHandleStartItem:
        case ImageFrameHandleEndItem:
        case MarkerViewHandleStartItem:
        case MarkerViewHandleEndItem:
-       /* </CMT Additions> */
+#endif
+
                if (is_drawable()) {
                        track_canvas.get_window()->set_cursor (*current_canvas_cursor);
                }
                break;
 
        case GainLineItem:
-       case GainAutomationLineItem:
-       case RedirectAutomationLineItem:
-       case PanAutomationLineItem:
+       case AutomationLineItem:
                al = reinterpret_cast<AutomationLine*> (item->get_data ("line"));
                {
                        ArdourCanvas::Line *line = dynamic_cast<ArdourCanvas::Line *> (item);
@@ -1415,6 +1460,12 @@ Editor::left_automation_track ()
        return false;
 }
 
+static gboolean
+_update_mouse_speed (void *arg)
+{
+       return static_cast<Editor*>(arg)->update_mouse_speed ();
+}
+
 bool
 Editor::motion_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_type, bool from_autoscroll)
 {
@@ -1446,14 +1497,74 @@ Editor::motion_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item
        drag_info.current_pointer_frame = event_frame (event, &drag_info.current_pointer_x,
                                                       &drag_info.current_pointer_y);
 
+       switch (mouse_mode) {
+       case MouseAudition:
+               if (_scrubbing) {
+                       struct timeval tmnow;
+
+                       if (last_scrub_frame == 0) {
+
+                               /* first motion, just set up the variables */
+
+                               last_scrub_frame = (nframes64_t) drag_info.current_pointer_frame;
+                               gettimeofday (&tmnow, 0);
+                               last_scrub_time = tmnow.tv_sec * 1000000.0 + tmnow.tv_usec;
+                               session->request_locate (last_scrub_frame, true);
+
+                       } else {
+                               /* how fast is the mouse moving ? */
+
+                               double speed;
+                               nframes_t distance;
+                               double time;
+                               double dir;
+
+#if 1
+                               if (last_scrub_frame < (nframes64_t) drag_info.current_pointer_frame) {
+                                       distance = (nframes64_t) drag_info.current_pointer_frame - last_scrub_frame;
+                                       dir = 1.0;
+                               } else {
+                                       distance = last_scrub_frame - (nframes64_t) drag_info.current_pointer_frame;
+                                       dir = -1.0;
+                               }
+#else
+                               if (drag_info.grab_x < drag_info.current_pointer_x) {
+                                       distance = drag_info.current_pointer_x - drag_info.grab_x;
+                                       dir = -1.0;
+                               } else {
+                                       distance = drag_info.grab_x - drag_info.current_pointer_x;
+                                       dir = 1.0;
+                               }
+#endif
+
+                               gettimeofday (&tmnow, 0);
+                               time = (tmnow.tv_sec * 1000000.0 + tmnow.tv_usec) - last_scrub_time;
+                               last_scrub_frame = drag_info.current_pointer_frame;
+                               last_scrub_time = (tmnow.tv_sec * 1000000.0) + tmnow.tv_usec;
+                               speed = ((double)distance/session->frame_rate()) / (time/1000000.0); // frames/sec
+
+                               add_mouse_speed (speed, dir);
+
+                               if (mouse_speed_update < 0) {
+                                       mouse_speed_update = g_timeout_add (10, _update_mouse_speed, this);
+                                       update_mouse_speed ();
+                               }
+                       }
+               }
+
+       default:
+               break;
+       }
+
+
        if (!from_autoscroll && drag_info.item) {
                /* item != 0 is the best test i can think of for dragging.
                */
                if (!drag_info.move_threshold_passed) {
 
-                       bool x_threshold_passed =  (abs ((int) (drag_info.current_pointer_x - drag_info.grab_x)) > 4);
-                       bool y_threshold_passed =  (abs ((int) (drag_info.current_pointer_y - drag_info.grab_y)) > 4);
-
+                       bool x_threshold_passed =  (abs ((nframes64_t) (drag_info.current_pointer_x - drag_info.grab_x)) > 4LL);
+                       bool y_threshold_passed =  (abs ((nframes64_t) (drag_info.current_pointer_y - drag_info.grab_y)) > 4LL);
+                       
                        drag_info.move_threshold_passed = (x_threshold_passed || y_threshold_passed);
                        
                        // and change the initial grab loc/frame if this drag info wants us to
@@ -1472,10 +1583,7 @@ Editor::motion_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item
        case PlayheadCursorItem:
        case EditCursorItem:
        case MarkerItem:
-       case GainControlPointItem:
-       case RedirectAutomationControlPointItem:
-       case GainAutomationControlPointItem:
-       case PanAutomationControlPointItem:
+       case ControlPointItem:
        case TempoMarkerItem:
        case MeterMarkerItem:
        case RegionViewNameHighlight:
@@ -1483,17 +1591,17 @@ Editor::motion_handler (ArdourCanvas::Item* item, GdkEvent* event, ItemType item
        case EndSelectionTrimItem:
        case SelectionItem:
        case GainLineItem:
-       case RedirectAutomationLineItem:
-       case GainAutomationLineItem:
-       case PanAutomationLineItem:
+       case AutomationLineItem:
        case FadeInHandleItem:
        case FadeOutHandleItem:
-       /* <CMT Additions> */
+
+#ifdef WITH_CMT
        case ImageFrameHandleStartItem:
        case ImageFrameHandleEndItem:
        case MarkerViewHandleStartItem:
        case MarkerViewHandleEndItem:
-       /* </CMT Additions> */
+#endif
+
          if (drag_info.item && (event->motion.state & Gdk::BUTTON1_MASK ||
                                 (event->motion.state & Gdk::BUTTON2_MASK))) {
                  if (!from_autoscroll) {
@@ -1550,7 +1658,7 @@ Editor::start_grab (GdkEvent* event, Gdk::Cursor *cursor)
                cursor = grabber_cursor;
        }
 
-        // if dragging with button2, the motion is x constrained, with Alt-button2 it is y constrained
+       // if dragging with button2, the motion is x constrained, with Alt-button2 it is y constrained
 
        if (event->button.button == 2) {
                if (Keyboard::modifier_state_equals (event->button.state, Keyboard::Alt)) {
@@ -1565,7 +1673,7 @@ Editor::start_grab (GdkEvent* event, Gdk::Cursor *cursor)
                drag_info.y_constrained = false;
        }
 
-       drag_info.grab_frame = event_frame(event, &drag_info.grab_x, &drag_info.grab_y);
+       drag_info.grab_frame = event_frame (event, &drag_info.grab_x, &drag_info.grab_y);
        drag_info.last_pointer_frame = drag_info.grab_frame;
        drag_info.current_pointer_frame = drag_info.grab_frame;
        drag_info.current_pointer_x = drag_info.grab_x;
@@ -1622,7 +1730,6 @@ Editor::end_grab (ArdourCanvas::Item* item, GdkEvent* event)
        stop_canvas_autoscroll ();
 
        if (drag_info.item == 0) {
-               cerr << "end grab with no item\n";
                return false;
        }
        
@@ -1700,7 +1807,7 @@ Editor::start_fade_in_grab (ArdourCanvas::Item* item, GdkEvent* event)
 
        AudioRegionView* arv = static_cast<AudioRegionView*>(drag_info.data);
 
-       drag_info.pointer_frame_offset = drag_info.grab_frame - ((nframes_t) arv->audio_region()->fade_in().back()->when + arv->region()->position());  
+       drag_info.pointer_frame_offset = drag_info.grab_frame - ((nframes_t) arv->audio_region()->fade_in()->back()->when + arv->region()->position()); 
 }
 
 void
@@ -1710,7 +1817,7 @@ Editor::fade_in_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        nframes_t pos;
        nframes_t fade_length;
 
-       if ((int32_t)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                pos = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
        }
        else {
@@ -1755,7 +1862,7 @@ Editor::fade_in_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* even
 
        if (drag_info.first_move) return;
 
-       if ((int32_t)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                pos = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
        } else {
                pos = 0;
@@ -1779,13 +1886,13 @@ Editor::fade_in_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* even
                        continue;
                }
        
-               AutomationList& alist = tmp->audio_region()->fade_in();
-               XMLNode &before = alist.get_state();
+               boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
+               XMLNode &before = alist->get_state();
 
                tmp->audio_region()->set_fade_in_length (fade_length);
                
-               XMLNode &after = alist.get_state();
-               session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
+               XMLNode &after = alist->get_state();
+               session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
        }
 
        commit_reversible_command ();
@@ -1807,7 +1914,7 @@ Editor::start_fade_out_grab (ArdourCanvas::Item* item, GdkEvent* event)
 
        AudioRegionView* arv = static_cast<AudioRegionView*>(drag_info.data);
 
-       drag_info.pointer_frame_offset = drag_info.grab_frame - (arv->region()->length() - (nframes_t) arv->audio_region()->fade_out().back()->when + arv->region()->position());       
+       drag_info.pointer_frame_offset = drag_info.grab_frame - (arv->region()->length() - (nframes_t) arv->audio_region()->fade_out()->back()->when + arv->region()->position());      
 }
 
 void
@@ -1817,10 +1924,9 @@ Editor::fade_out_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event
        nframes_t pos;
        nframes_t fade_length;
 
-       if ((long)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                pos = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
-       }
-       else {
+       } else {
                pos = 0;
        }
 
@@ -1865,7 +1971,7 @@ Editor::fade_out_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* eve
        nframes_t pos;
        nframes_t fade_length;
 
-       if ((long)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                pos = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
        }
        else {
@@ -1896,13 +2002,13 @@ Editor::fade_out_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* eve
                        continue;
                }
        
-               AutomationList& alist = tmp->audio_region()->fade_out();
-               XMLNode &before = alist.get_state();
+               boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
+               XMLNode &before = alist->get_state();
                
                tmp->audio_region()->set_fade_out_length (fade_length);
 
-               XMLNode &after = alist.get_state();
-               session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
+               XMLNode &after = alist->get_state();
+               session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
        }
 
        commit_reversible_command ();
@@ -1947,7 +2053,7 @@ Editor::cursor_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        Cursor* cursor = (Cursor *) drag_info.data;
        nframes_t adjusted_frame;
        
-       if ((long)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                adjusted_frame = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
        }
        else {
@@ -2002,7 +2108,7 @@ Editor::update_marker_drag_item (Location *location)
        double x2 = frame_to_pixel (location->end());
 
        if (location->is_mark()) {
-               marker_drag_line_points.front().set_x(x1);
+               marker_drag_line_points.front().set_x(x1);
                marker_drag_line_points.back().set_x(x1);
                marker_drag_line->property_points() = marker_drag_line_points;
        }
@@ -2063,10 +2169,9 @@ Editor::marker_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
 
 
        nframes_t newframe;
-       if (drag_info.pointer_frame_offset <= (long) drag_info.current_pointer_frame) {
+       if (drag_info.pointer_frame_offset <= drag_info.current_pointer_frame) {
                newframe = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
-       }
-       else {
+       } else {
                newframe = 0;
        }
 
@@ -2222,7 +2327,7 @@ Editor::start_meter_marker_copy_grab (ArdourCanvas::Item* item, GdkEvent* event)
        // The actual copying is not done before we reach the finish callback.
        char name[64];
        snprintf (name, sizeof(name), "%g/%g", meter_marker->meter().beats_per_bar(), meter_marker->meter().note_divisor ());
-       MeterMarker* new_marker = new MeterMarker(*this, *meter_group, color_map[cMeterMarker], name, 
+       MeterMarker* new_marker = new MeterMarker(*this, *meter_group, ARDOUR_UI::config()->canvasvar_MeterMarker.get(), name, 
                                                  *new MeterSection(meter_marker->meter()));
 
        drag_info.item = &new_marker->the_item();
@@ -2244,7 +2349,7 @@ Editor::meter_marker_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* e
        MeterMarker* marker = (MeterMarker *) drag_info.data;
        nframes_t adjusted_frame;
 
-       if ((long)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                adjusted_frame = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
        }
        else {
@@ -2281,12 +2386,12 @@ Editor::meter_marker_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent*
        
        if (drag_info.copy == true) {
                begin_reversible_command (_("copy meter mark"));
-                XMLNode &before = map.get_state();
+               XMLNode &before = map.get_state();
                map.add_meter (marker->meter(), when);
                XMLNode &after = map.get_state();
-                session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
+               session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
                commit_reversible_command ();
-               
+
                // delete the dummy marker we used for visual representation of copying.
                // a new visual marker will show up automatically.
                delete marker;
@@ -2295,7 +2400,7 @@ Editor::meter_marker_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent*
                XMLNode &before = map.get_state();
                map.move_meter (marker->meter(), when);
                XMLNode &after = map.get_state();
-                session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
+               session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
                commit_reversible_command ();
        }
 }
@@ -2353,7 +2458,7 @@ Editor::start_tempo_marker_copy_grab (ArdourCanvas::Item* item, GdkEvent* event)
        // The actual copying is not done before we reach the finish callback.
        char name[64];
        snprintf (name, sizeof (name), "%.2f", tempo_marker->tempo().beats_per_minute());
-       TempoMarker* new_marker = new TempoMarker(*this, *tempo_group, color_map[cTempoMarker], name, 
+       TempoMarker* new_marker = new TempoMarker(*this, *tempo_group, ARDOUR_UI::config()->canvasvar_TempoMarker.get(), name, 
                                                  *new TempoSection(tempo_marker->tempo()));
 
        drag_info.item = &new_marker->the_item();
@@ -2375,7 +2480,7 @@ Editor::tempo_marker_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* e
        TempoMarker* marker = (TempoMarker *) drag_info.data;
        nframes_t adjusted_frame;
        
-       if ((long)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                adjusted_frame = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
        }
        else {
@@ -2424,10 +2529,10 @@ Editor::tempo_marker_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent*
                delete marker;
        } else {
                begin_reversible_command (_("move tempo mark"));
-                XMLNode &before = map.get_state();
+               XMLNode &before = map.get_state();
                map.move_tempo (marker->tempo(), when);
-                XMLNode &after = map.get_state();
-                session->add_command (new MementoCommand<TempoMap>(map, &before, &after));
+               XMLNode &after = map.get_state();
+               session->add_command (new MementoCommand<TempoMap>(map, &before, &after));
                commit_reversible_command ();
        }
 }
@@ -2443,16 +2548,16 @@ Editor::remove_gain_control_point (ArdourCanvas::Item*item, GdkEvent* event)
        }
 
        // We shouldn't remove the first or last gain point
-       if (control_point->line.is_last_point(*control_point) ||
-               control_point->line.is_first_point(*control_point)) {   
+       if (control_point->line().is_last_point(*control_point) ||
+               control_point->line().is_first_point(*control_point)) { 
                return;
        }
 
-       control_point->line.remove_point (*control_point);
+       control_point->line().remove_point (*control_point);
 }
 
 void
-Editor::remove_control_point (ArdourCanvas::Item*item, GdkEvent* event)
+Editor::remove_control_point (ArdourCanvas::Item* item, GdkEvent* event)
 {
        ControlPoint* control_point;
 
@@ -2461,14 +2566,14 @@ Editor::remove_control_point (ArdourCanvas::Item*item, GdkEvent* event)
                /*NOTREACHED*/
        }
 
-       control_point->line.remove_point (*control_point);
+       control_point->line().remove_point (*control_point);
 }
 
 void
 Editor::start_control_point_grab (ArdourCanvas::Item* item, GdkEvent* event)
 {
        ControlPoint* control_point;
-       
+
        if ((control_point = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"))) == 0) {
                fatal << _("programming error: control point canvas item has no control point object pointer!") << endmsg;
                /*NOTREACHED*/
@@ -2481,10 +2586,10 @@ Editor::start_control_point_grab (ArdourCanvas::Item* item, GdkEvent* event)
 
        start_grab (event, fader_cursor);
 
-       control_point->line.start_drag (control_point, drag_info.grab_frame, 0);
+       control_point->line().start_drag (control_point, drag_info.grab_frame, 0);
 
-       float fraction = 1.0 - (control_point->get_y() / control_point->line.height());
-       set_verbose_canvas_cursor (control_point->line.get_verbose_cursor_string (fraction), 
+       double fraction = 1.0 - ((control_point->get_y() - control_point->line().y_position()) / (double)control_point->line().height());
+       set_verbose_canvas_cursor (control_point->line().get_verbose_cursor_string (fraction), 
                                   drag_info.current_pointer_x + 20, drag_info.current_pointer_y + 20);
 
        show_verbose_canvas_cursor ();
@@ -2508,11 +2613,11 @@ Editor::control_point_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent*
                cy = drag_info.grab_y;
        }
 
-       cp->line.parent_group().w2i (cx, cy);
+       cp->line().parent_group().w2i (cx, cy);
 
        cx = max (0.0, cx);
        cy = max (0.0, cy);
-       cy = min ((double) cp->line.height(), cy);
+       cy = min ((double) (cp->line().y_position() + cp->line().height()), cy);
 
        //translate cx to frames
        nframes_t cx_frames = unit_to_frame (cx);
@@ -2521,8 +2626,8 @@ Editor::control_point_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent*
                snap_to (cx_frames);
        }
 
-       float fraction = 1.0 - (cy / cp->line.height());
-       
+       const double fraction = 1.0 - ((cy - cp->line().y_position()) / (double)cp->line().height());
+
        bool push;
 
        if (Keyboard::modifier_state_contains (event->button.state, Keyboard::Control)) {
@@ -2531,9 +2636,9 @@ Editor::control_point_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent*
                push = false;
        }
 
-       cp->line.point_drag (*cp, cx_frames , fraction, push);
+       cp->line().point_drag (*cp, cx_frames , fraction, push);
        
-       set_verbose_canvas_cursor_text (cp->line.get_verbose_cursor_string (fraction));
+       set_verbose_canvas_cursor_text (cp->line().get_verbose_cursor_string (fraction));
 
        drag_info.first_move = false;
 }
@@ -2554,7 +2659,7 @@ Editor::control_point_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent
        } else {
                control_point_drag_motion_callback (item, event);
        }
-       cp->line.end_drag (cp);
+       cp->line().end_drag (cp);
 }
 
 void
@@ -2612,7 +2717,7 @@ Editor::start_line_grab (AutomationLine* line, GdkEvent* event)
 
        start_grab (event, fader_cursor);
 
-       double fraction = 1.0 - (cy / line->height());
+       const double fraction = 1.0 - ((cy - line->y_position()) / (double)line->height());
 
        line->start_drag (0, drag_info.grab_frame, fraction);
        
@@ -2630,8 +2735,7 @@ Editor::line_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
 
        line->parent_group().w2i (cx, cy);
        
-       double fraction;
-       fraction = 1.0 - (cy / line->height());
+       const double fraction = 1.0 - ((cy - line->y_position()) / (double)line->height());
 
        bool push;
 
@@ -2770,23 +2874,25 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                drag_info.want_move_threshold = false; // don't copy again
 
                /* duplicate the region(s) */
-               
+
                vector<RegionView*> new_regionviews;
                
                for (list<RegionView*>::const_iterator i = selection->regions.by_layer().begin(); i != selection->regions.by_layer().end(); ++i) {
                        RegionView* rv;
                        RegionView* nrv;
-                       AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
-                       MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(rv);
 
                        rv = (*i);
 
-                       if (arv)        
+                       AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
+                       MidiRegionView* mrv = dynamic_cast<MidiRegionView*>(rv);
+
+                       if (arv) {
                                nrv = new AudioRegionView (*arv);
-                       else if (mrv)
+                       } else if (mrv) {
                                nrv = new MidiRegionView (*mrv);
-                       else
+                       } else {
                                continue;
+                       }
 
                        nrv->get_canvas_group()->show ();
 
@@ -2804,7 +2910,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                /* reset drag_info data to reflect the fact that we are dragging the copies */
                
                drag_info.data = new_regionviews.front();
-               
+
                swap_grab (new_regionviews.front()->get_canvas_group (), 0, event->motion.time);
        }
 
@@ -2828,7 +2934,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        original_pointer_order = drag_info.last_trackview->order;
                
        /************************************************************
-                 Y-Delta Computation
+            Y-Delta Computation
        ************************************************************/   
 
        if (drag_info.brushing) {
@@ -2848,7 +2954,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                        TimeAxisView *tracklist_timeview;
                        tracklist_timeview = (*i);
                        RouteTimeAxisView* rtv2 = dynamic_cast<RouteTimeAxisView*>(tracklist_timeview);
-                       list<TimeAxisView*> children_list;
+                       TimeAxisView::Children children_list;
              
                        /* zeroes are audio tracks. ones are other types. */
              
@@ -2868,7 +2974,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                                height_list[rtv2->order] = (*i)->height;
                                children = 1;
                                if ((children_list = rtv2->get_child_list()).size() > 0) {
-                                       for (list<TimeAxisView*>::iterator j = children_list.begin(); j != children_list.end(); ++j) { 
+                                       for (TimeAxisView::Children::iterator j = children_list.begin(); j != children_list.end(); ++j) { 
                                                tracks = tracks |= (0x01 << (rtv2->order + children));
                                                height_list[rtv2->order + children] =  (*j)->height;                
                                                numtracks++;
@@ -2983,7 +3089,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        }
          
        /************************************************************
-                       X DELTA COMPUTATION
+           X DELTA COMPUTATION
        ************************************************************/
 
        /* compute the amount of pointer motion in frames, and where
@@ -2992,14 +3098,14 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
 
        if (drag_info.move_threshold_passed) {
 
-               if ((int32_t)drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+               if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
 
                        nframes_t sync_frame;
                        nframes_t sync_offset;
                        int32_t sync_dir;
            
                        pending_region_position = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
-           
+
                        sync_offset = rv->region()->sync_offset (sync_dir);
                        sync_frame = rv->region()->adjust_to_sync (pending_region_position);
 
@@ -3031,13 +3137,13 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                        /* now compute the canvas unit distance we need to move the regiondrag_info.last_trackview->order
                           to make it appear at the new location.
                        */
-           
+
                        if (pending_region_position > drag_info.last_frame_position) {
                                x_delta = ((double) (pending_region_position - drag_info.last_frame_position) / frames_per_unit);
                        } else {
                                x_delta = -((double) (drag_info.last_frame_position - pending_region_position) / frames_per_unit);
                        }
-           
+
                        drag_info.last_frame_position = pending_region_position;
            
                } else {
@@ -3051,7 +3157,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        }
 
        /*************************************************************
-                        PREPARE TO MOVE
+           PREPARE TO MOVE
        ************************************************************/
 
        if (x_delta == 0 && (pointer_y_span == 0)) {
@@ -3061,6 +3167,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                return;
        } 
 
+
        if (x_delta < 0) {
                for (list<RegionView*>::const_iterator i = selection->regions.by_layer().begin(); i != selection->regions.by_layer().end(); ++i) {
 
@@ -3080,7 +3187,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        }
 
        /*************************************************************
-                        MOTION                                                               
+           MOTION                                                                    
        ************************************************************/
 
        bool do_move;
@@ -3160,7 +3267,7 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                  
                                                tvp2 = trackview_by_y_position (iy1 + y_delta);
                                                temp_rtv = dynamic_cast<RouteTimeAxisView*>(tvp2);
-                                               rv->set_height (temp_rtv->height);
+                                               rv->set_y_position_and_height (0, temp_rtv->height);
        
                                                /*   if you un-comment the following, the region colours will follow the track colours whilst dragging,
                                                     personally, i think this can confuse things, but never mind.
@@ -3183,10 +3290,11 @@ Editor::region_drag_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                                if (-x_delta > ix1) {
                                        x_delta = -ix1;
                                }
-                       } else if ((x_delta > 0) &&(rv->region()->last_frame() > max_frames - x_delta)) {
+                       } else if ((x_delta > 0) && (rv->region()->last_frame() > max_frames - x_delta)) {
                                x_delta = max_frames - rv->region()->last_frame();
                        }
 
+
                        if (drag_info.first_move) {
 
                                /* hide any dependent views */
@@ -3237,6 +3345,7 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
        RouteTimeAxisView* rtv;
        bool regionview_y_movement;
        bool regionview_x_movement;
+       vector<RegionView*> copies;
 
        /* first_move is set to false if the regionview has been moved in the 
           motion handler. 
@@ -3257,6 +3366,13 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
 
        if (drag_info.brushing) {
                /* all changes were made during motion event handlers */
+               
+               if (drag_info.copy) {
+                       for (list<RegionView*>::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
+                               copies.push_back (*i);
+                       }
+               }
+
                goto out;
        }
 
@@ -3299,7 +3415,7 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
                vector<RegionView*> new_selection;
 
                for (list<RegionView*>::const_iterator i = selection->regions.by_layer().begin(); i != selection->regions.by_layer().end(); ) {
-           
+                       
                        RegionView* rv = (*i);              
 
                        double ix1, ix2, iy1, iy2;
@@ -3311,7 +3427,7 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
 
                        boost::shared_ptr<Playlist> from_playlist = rv->region()->playlist();
                        boost::shared_ptr<Playlist> to_playlist = rtv2->playlist();
-           
+
                        where = (nframes_t) (unit_to_frame (ix1) * speed);
                        boost::shared_ptr<Region> new_region (RegionFactory::create (rv->region()));
 
@@ -3335,6 +3451,12 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
                                session->add_command (new MementoCommand<Playlist>(*from_playlist, &from_playlist->get_state(), 0));    
                                from_playlist->remove_region ((rv->region()));
                                session->add_command (new MementoCommand<Playlist>(*from_playlist, 0, &from_playlist->get_state()));    
+
+                       } else {
+
+                               /* the regionview we dragged around is a temporary copy, queue it for deletion */
+                               
+                               copies.push_back (rv);
                        }
 
                        latest_regionview = 0;
@@ -3349,11 +3471,6 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
                                new_selection.push_back (latest_regionview);
                        }
 
-                       if (drag_info.copy) {
-                               // get rid of the copy
-                               delete rv;
-                       } 
-
                        /* OK, this is where it gets tricky. If the playlist was being used by >1 tracks, and the region
                           was selected in all of them, then removing it from the playlist will have removed all
                           trace of it from the selection (i.e. there were N regions selected, we removed 1,
@@ -3366,12 +3483,19 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
                           here. if the region selection is not empty, then restart the loop because we know that
                           we must have removed at least the region(view) we've just been working on as well as any
                           that we processed on previous iterations.
+
+                          EXCEPT .... if we are doing a copy drag, then the selection hasn't been modified and
+                          we can just iterate.
                        */
 
-                       if (selection->regions.empty()) {
-                               break;
-                       } else { 
-                               i = selection->regions.by_layer().begin();
+                       if (drag_info.copy) {
+                               ++i;
+                       } else {
+                               if (selection->regions.empty()) {
+                                       break;
+                               } else { 
+                                       i = selection->regions.by_layer().begin();
+                               }
                        }
                } 
 
@@ -3391,10 +3515,9 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
 
                        rv = (*i);
 
-                       if (rv->region()->locked()) {
+                       if (!rv->region()->can_move()) {
                                continue;
                        }
-                       
 
                        if (regionview_x_movement) {
                                double ownspeed = 1.0;
@@ -3429,16 +3552,16 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
 
                                boost::shared_ptr<Region> newregion;
                                boost::shared_ptr<Region> ar;
+                               boost::shared_ptr<Region> mr;
 
                                if ((ar = boost::dynamic_pointer_cast<AudioRegion>(rv->region())) != 0) {
                                        newregion = RegionFactory::create (ar);
-                               } else {
-                                       /* XXX MIDI HERE drobilla */
-                                       continue;
+                               } else if ((mr = boost::dynamic_pointer_cast<MidiRegion>(rv->region())) != 0) {
+                                       newregion = RegionFactory::create (mr);
                                }
 
                                /* add it */
-                               
+
                                latest_regionview = 0;
                                sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
                                to_playlist->add_region (newregion, (nframes_t) (where * rtv->get_diskstream()->speed()));
@@ -3448,11 +3571,11 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
                                        rtv->reveal_dependent_views (*latest_regionview);
                                        selection->add (latest_regionview);
                                }
-                               
+
                                /* if the original region was locked, we don't care for the new one */
                                
                                newregion->set_locked (false);                  
-
+                               
                        } else {
 
                                /* just change the model */
@@ -3465,10 +3588,8 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
 
                        session->add_command (new MementoCommand<Playlist>(*to_playlist, 0, &to_playlist->get_state()));
 
-                       /* get rid of the copy */
-
                        if (drag_info.copy) {
-                               delete rv;
+                               copies.push_back (rv);
                        }
                }
        }
@@ -3478,6 +3599,10 @@ Editor::region_drag_finished_callback (ArdourCanvas::Item* item, GdkEvent* event
        if (!nocommit) {
                commit_reversible_command ();
        }
+
+       for (vector<RegionView*>::iterator x = copies.begin(); x != copies.end(); ++x) {
+               delete *x;
+       }
 }
 
 void
@@ -3713,7 +3838,7 @@ Editor::start_selection_grab (ArdourCanvas::Item* item, GdkEvent* event)
 void
 Editor::cancel_selection ()
 {
-        for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
                (*i)->hide_selection ();
        }
        begin_reversible_command (_("cancel selection"));
@@ -3788,10 +3913,9 @@ Editor::drag_selection (ArdourCanvas::Item* item, GdkEvent* event)
        nframes_t length;
        nframes_t pending_position;
 
-       if ((int32_t) drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
+       if (drag_info.current_pointer_frame > drag_info.pointer_frame_offset) {
                pending_position = drag_info.current_pointer_frame - drag_info.pointer_frame_offset;
-       }
-       else {
+       } else {
                pending_position = 0;
        }
        
@@ -4047,7 +4171,7 @@ Editor::trim_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
                        boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
                        insert_result = motion_frozen_playlists.insert (pl);
                        if (insert_result.second) {
-                                session->add_command(new MementoCommand<Playlist>(*pl, &pl->get_state(), 0));
+                               session->add_command(new MementoCommand<Playlist>(*pl, &pl->get_state(), 0));
                        }
                }
        }
@@ -4062,7 +4186,7 @@ Editor::trim_motion_callback (ArdourCanvas::Item* item, GdkEvent* event)
        case StartTrim:
                if ((left_direction == false) && (drag_info.current_pointer_frame <= rv->region()->first_frame()/speed)) {
                        break;
-                } else {
+               } else {
                        for (list<RegionView*>::const_iterator i = selection->regions.by_layer().begin(); i != selection->regions.by_layer().end(); ++i) {
                                single_start_trim (**i, frame_delta, left_direction, obey_snap);
                        }
@@ -4238,8 +4362,8 @@ Editor::trim_finished_callback (ArdourCanvas::Item* item, GdkEvent* event)
                
                for (set<boost::shared_ptr<Playlist> >::iterator p = motion_frozen_playlists.begin(); p != motion_frozen_playlists.end(); ++p) {
                        //(*p)->thaw ();
-                        session->add_command (new MementoCommand<Playlist>(*(*p).get(), 0, &(*p)->get_state()));
-                }
+                       session->add_command (new MementoCommand<Playlist>(*(*p).get(), 0, &(*p)->get_state()));
+               }
                
                motion_frozen_playlists.clear ();
 
@@ -4273,10 +4397,10 @@ Editor::point_trim (GdkEvent* event)
                        {
                                if (!(*i)->region()->locked()) {
                                        boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
-                                        XMLNode &before = pl->get_state();
+                                       XMLNode &before = pl->get_state();
                                        (*i)->region()->trim_front (new_bound, this);   
-                                        XMLNode &after = pl->get_state();
-                                        session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
+                                       XMLNode &after = pl->get_state();
+                                       session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
                                }
                        }
 
@@ -4286,7 +4410,7 @@ Editor::point_trim (GdkEvent* event)
                                boost::shared_ptr<Playlist> pl = rv->region()->playlist();
                                XMLNode &before = pl->get_state();
                                rv->region()->trim_front (new_bound, this);     
-                                XMLNode &after = pl->get_state();
+                               XMLNode &after = pl->get_state();
                                session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
                        }
                }
@@ -4317,7 +4441,7 @@ Editor::point_trim (GdkEvent* event)
                                boost::shared_ptr<Playlist> pl = rv->region()->playlist();
                                XMLNode &before = pl->get_state();
                                rv->region()->trim_end (new_bound, this);
-                                XMLNode &after = pl->get_state();
+                               XMLNode &after = pl->get_state();
                                session->add_command (new MementoCommand<Playlist>(*pl.get(), &before, &after));
                        }
                }
@@ -4340,7 +4464,7 @@ Editor::thaw_region_after_trim (RegionView& rv)
        }
 
        region->thaw (_("trimmed region"));
-        XMLNode &after = region->playlist()->get_state();
+       XMLNode &after = region->playlist()->get_state();
        session->add_command (new MementoCommand<Playlist>(*(region->playlist()), 0, &after));
 
        AudioRegionView* arv = dynamic_cast<AudioRegionView*>(&rv);
@@ -4483,11 +4607,11 @@ Editor::end_range_markerbar_op (ArdourCanvas::Item* item, GdkEvent* event)
                case CreateRangeMarker:
                    {
                        begin_reversible_command (_("new range marker"));
-                        XMLNode &before = session->locations()->get_state();
+                       XMLNode &before = session->locations()->get_state();
                        session->locations()->next_available_name(rangename,"unnamed");
                        newloc = new Location(temp_location->start(), temp_location->end(), rangename, Location::IsRangeMarker);
                        session->locations()->add (newloc, true);
-                        XMLNode &after = session->locations()->get_state();
+                       XMLNode &after = session->locations()->get_state();
                        session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
                        commit_reversible_command ();
                        
@@ -4524,7 +4648,7 @@ Editor::end_range_markerbar_op (ArdourCanvas::Item* item, GdkEvent* event)
                        switch (mouse_mode) {
                        case MouseObject:
                                /* find the two markers on either side and then make the selection from it */
-                               select_all_within (start, end, 0.0f, FLT_MAX, Selection::Set);
+                               select_all_within (start, end, 0.0f, FLT_MAX, track_views, Selection::Set);
                                break;
 
                        case MouseRange:
@@ -4727,9 +4851,9 @@ Editor::end_rubberband_select (ArdourCanvas::Item* item, GdkEvent* event)
                begin_reversible_command (_("rubberband selection"));
 
                if (drag_info.grab_frame < drag_info.last_pointer_frame) {
-                       commit = select_all_within (drag_info.grab_frame, drag_info.last_pointer_frame, y1, y2, op);
+                       commit = select_all_within (drag_info.grab_frame, drag_info.last_pointer_frame, y1, y2, track_views, op);
                } else {
-                       commit = select_all_within (drag_info.last_pointer_frame, drag_info.grab_frame, y1, y2, op);
+                       commit = select_all_within (drag_info.last_pointer_frame, drag_info.grab_frame, y1, y2, track_views, op);
                }               
 
                if (commit) {
@@ -4761,10 +4885,10 @@ Editor::mouse_rename_region (ArdourCanvas::Item* item, GdkEvent* event)
        prompter.show_all ();
        switch (prompter.run ()) {
        case Gtk::RESPONSE_ACCEPT:
-        string str;
+               string str;
                prompter.get_result(str);
                if (str.length()) {
-               clicked_regionview->region()->set_name (str);
+                       clicked_regionview->region()->set_name (str);
                }
                break;
        }
@@ -4814,6 +4938,11 @@ Editor::end_time_fx (ArdourCanvas::Item* item, GdkEvent* event)
        if (drag_info.first_move) {
                return;
        }
+
+       if (drag_info.last_pointer_frame < clicked_regionview->region()->position()) {
+               /* backwards drag of the left edge - not usable */
+               return;
+       }
        
        nframes_t newlen = drag_info.last_pointer_frame - clicked_regionview->region()->position();
        float percentage = (float) ((double) newlen - (double) clicked_regionview->region()->length()) / ((double) newlen) * 100.0f;
@@ -4866,9 +4995,9 @@ Editor::mouse_brush_insert_region (RegionView* rv, nframes_t pos)
        boost::shared_ptr<Playlist> playlist = rtv->playlist();
        double speed = rtv->get_diskstream()->speed();
        
-        XMLNode &before = playlist->get_state();
+       XMLNode &before = playlist->get_state();
        playlist->add_region (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (arv->audio_region())), (nframes_t) (pos * speed));
-        XMLNode &after = playlist->get_state();
+       XMLNode &after = playlist->get_state();
        session->add_command(new MementoCommand<Playlist>(*playlist.get(), &before, &after));
        
        // playlist is frozen, so we have to update manually
@@ -4891,3 +5020,91 @@ Editor::track_height_step_timeout ()
        }
        return true;
 }
+
+
+void
+Editor::add_mouse_speed (double speed, double dir)
+{
+       size_t index;
+
+       mouse_direction = dir;
+
+       index = mouse_speed_entries;
+
+       if (++index >= mouse_speed_size) {
+               index = 0;
+               have_full_mouse_speed = true;
+       }
+       
+       mouse_speed[index] = speed;
+       mouse_speed_entries = index;
+}
+
+double
+Editor::compute_mouse_speed ()
+{
+       double total = 0;
+
+       if (!have_full_mouse_speed) {
+
+               /* partial speed buffer, just use whatever we have so far */
+
+               if (mouse_speed_entries == 0 ) {
+                       return 0.0;
+               }
+
+               for (size_t n = 0; n < mouse_speed_entries; ++n) {
+                       total += mouse_speed[n];
+               }
+               
+               return mouse_direction * total/mouse_speed_entries;
+       }
+
+       /* compute the average (effectively low-pass filtering) mouse speed
+          across the entire buffer.
+       */
+
+       for (size_t n = 0; n < mouse_speed_size; ++n) {
+               total += mouse_speed[n];
+       }
+
+
+       return mouse_direction * total/mouse_speed_size;
+}
+
+bool
+Editor::update_mouse_speed ()
+{
+       double speed;
+
+       if (!_scrubbing) {
+               session->request_transport_speed (0.0);
+               mouse_speed_update = -1;
+               return false;
+       }
+
+       speed = compute_mouse_speed ();
+
+       struct timeval tmnow;
+       
+       gettimeofday (&tmnow, 0);
+       double now = (tmnow.tv_sec * 1000000.0) + tmnow.tv_usec;
+
+       if (now - last_scrub_time > 250000) {
+           
+               // 0.25 seconds since last mouse motion, start to brake
+
+               if (fabs (speed) < 0.1) {
+                       /* don't asymptotically approach zero */
+                       memset (mouse_speed, 0, sizeof (double) * mouse_speed_size);
+                       speed = 0.0;
+               } else if (fabs (speed) < 0.25) {
+                       add_mouse_speed (fabs (speed * 0.2), mouse_direction);
+               } else {
+                       add_mouse_speed (fabs (speed * 0.6), mouse_direction);
+               }
+       } 
+
+       session->request_transport_speed (speed);
+       return _scrubbing;
+}