switch to using boost::signals2 instead of sigc++, at least for libardour. not finish...
[ardour.git] / gtk2_ardour / crossfade_edit.cc
index 7667de3134d7fe5181faca601890728529db95eb..7a7b740a25059c200bec28a4877c49eea45e62c7 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2004 Paul Davis 
+    Copyright (C) 2004 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #include <cmath>
 
 #include <sigc++/bind.h>
 
-#include <gtk--/frame.h>
-#include <gtk--/pixmap.h>
-#include <gtk--/scrolledwindow.h>
+#include <gtkmm/frame.h>
+#include <gtkmm/image.h>
+#include <gtkmm/scrolledwindow.h>
 
-#include <ardour/automation_event.h>
-#include <ardour/curve.h>
-#include <ardour/crossfade.h>
-#include <ardour/session.h>
-#include <ardour/auditioner.h>
-#include <ardour/audioplaylist.h>
-#include <ardour/playlist_templates.h>
+#include <libgnomecanvasmm/line.h>
 
-#include <gtkmmext/gtk_ui.h>
+#include "ardour/automation_list.h"
+#include "evoral/Curve.hpp"
+#include "ardour/crossfade.h"
+#include "ardour/session.h"
+#include "ardour/auditioner.h"
+#include "ardour/audioplaylist.h"
+#include "ardour/audiosource.h"
+#include "ardour/region_factory.h"
+#include "ardour/profile.h"
+
+#include <gtkmm2ext/gtk_ui.h>
 
 #include "ardour_ui.h"
 #include "crossfade_edit.h"
 #include "rgb_macros.h"
-#include "canvas-simplerect.h"
-#include "canvas-waveview.h"
 #include "keyboard.h"
 #include "utils.h"
 #include "gui_thread.h"
+#include "canvas_impl.h"
+#include "simplerect.h"
+#include "waveview.h"
+#include "actions.h"
 
 using namespace std;
 using namespace ARDOUR;
+using namespace PBD;
 using namespace Gtk;
-using namespace SigC;
 using namespace Editing;
 
+using Gtkmm2ext::Keyboard;
+
 #include "i18n.h"
 
 const int32_t CrossfadeEditor::Point::size = 7;
@@ -58,21 +65,16 @@ const double CrossfadeEditor::canvas_border = 10;
 CrossfadeEditor::Presets* CrossfadeEditor::fade_in_presets = 0;
 CrossfadeEditor::Presets* CrossfadeEditor::fade_out_presets = 0;
 
-#include "crossfade_xpms.h"
-
 CrossfadeEditor::Half::Half ()
-       : line (0)
-         normative_curve (0.0, 1.0, 1.0, true),
-         gain_curve (0.0, 2.0, 1.0, true)
+       : line (0)
+       , normative_curve (Evoral::Parameter(GainAutomation))
+       , gain_curve (Evoral::Parameter(GainAutomation))
 {
 }
 
-CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double mxy)
-       : ArdourDialog (_("crossfade editor")),
-         cancel_button (_("Cancel")),
-         ok_button (_("OK")),
+CrossfadeEditor::CrossfadeEditor (Session* s, boost::shared_ptr<Crossfade> xf, double my, double mxy)
+       : ArdourDialog (_("ardour: x-fade edit")),
          xfade (xf),
-         session (s),
          clear_button (_("Clear")),
          revert_button (_("Reset")),
          audition_both_button (_("Fade")),
@@ -83,7 +85,7 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
 
          preroll_button (_("With Pre-roll")),
          postroll_button (_("With Post-roll")),
-         
+
          miny (my),
          maxy (mxy),
 
@@ -93,18 +95,27 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
          select_in_button (_("Fade In")),
          select_out_button (_("Fade Out"))
 {
-       set_wmclass ("ardour_automationedit", "Ardour");
+       set_session (s);
+
+       set_wmclass (X_("ardour_automationedit"), "Ardour");
        set_name ("CrossfadeEditWindow");
-       set_title (_("ardour: x-fade edit"));
-       set_position (GTK_WIN_POS_MOUSE);
+       set_position (Gtk::WIN_POS_MOUSE);
+
+       add_accel_group (ActionManager::ui_manager->get_accel_group());
 
-       add (vpacker);
-       add_events (GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK|GDK_POINTER_MOTION_MASK);
+       add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 
-       select_out_button.set_group (select_in_button.group());
+       RadioButtonGroup sel_but_group = select_in_button.get_group();
+       select_out_button.set_group (sel_but_group);
        select_out_button.set_mode (false);
        select_in_button.set_mode (false);
 
+       get_action_area()->set_layout(BUTTONBOX_SPREAD);
+       get_action_area()->pack_start(clear_button);
+       get_action_area()->pack_start(revert_button);
+       cancel_button = add_button ("Cancel", RESPONSE_CANCEL);
+       ok_button = add_button ("OK", RESPONSE_ACCEPT);
+
        if (fade_in_presets == 0) {
                build_presets ();
        }
@@ -112,80 +123,47 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
        point_grabbed = false;
        toplevel = 0;
 
-       _canvas = gtk_canvas_new_aa ();
-
-       canvas = wrap (_canvas);
-       canvas->size_allocate.connect (slot (*this, &CrossfadeEditor::canvas_allocation));
-       canvas->set_usize (425, 200);
-
-       toplevel = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                       gtk_canvas_simplerect_get_type(),
-                                       "x1", 0.0,
-                                       "y1", 0.0,
-                                       "x2", 10.0,
-                                       "y2", 10.0,
-                                       "fill", (gboolean) TRUE,
-                                       "fill_color_rgba", (guint32) color_map[cCrossfadeEditorBase],
-                                       "outline_pixels", 0,
-                                       NULL);
-
-       gtk_signal_connect (GTK_OBJECT(toplevel),
-                           "event",
-                           (GtkSignalFunc) _canvas_event,
-                           this);
-
-       fade[Out].line = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                             gtk_canvas_line_get_type (),
-                                             "width_pixels", (guint) 1,
-                                             "fill_color_rgba", color_map[cCrossfadeEditorLine],
-                                             NULL);
-
-       fade[Out].shading = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                                gtk_canvas_polygon_get_type(),
-                                                "fill_color_rgba", color_map[cCrossfadeEditorLineShading],
-                                                NULL);
-       
-       fade[In].line = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                            gtk_canvas_line_get_type (),
-                                            "width_pixels", (guint) 1,
-                                            "fill_color_rgba", color_map[cCrossfadeEditorLine],
-                                            NULL);
-       
-       fade[In].shading = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                               gtk_canvas_polygon_get_type(),
-                                               "fill_color_rgba", color_map[cCrossfadeEditorLineShading],
-                                               NULL);
-
-       gtk_signal_connect (GTK_OBJECT(fade[In].shading),
-                           "event",
-                           (GtkSignalFunc) _canvas_event,
-                           this);
-
-
-       gtk_signal_connect (GTK_OBJECT(fade[Out].shading),
-                           "event",
-                           (GtkSignalFunc) _canvas_event,
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(fade[In].line),
-                           "event",
-                           (GtkSignalFunc) _curve_event,
-                           this);
-
-       gtk_signal_connect (GTK_OBJECT(fade[Out].line),
-                           "event",
-                           (GtkSignalFunc) _curve_event,
-                           this);
+       canvas = new ArdourCanvas::CanvasAA ();
+       canvas->signal_size_allocate().connect (sigc::mem_fun(*this, &CrossfadeEditor::canvas_allocation));
+       canvas->set_size_request (425, 200);
+
+       toplevel = new ArdourCanvas::SimpleRect (*(canvas->root()));
+       toplevel->property_x1() =  0.0;
+       toplevel->property_y1() =  0.0;
+       toplevel->property_x2() =  10.0;
+       toplevel->property_y2() =  10.0;
+       toplevel->property_fill() =  true;
+       toplevel->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorBase.get();
+       toplevel->property_outline_pixels() =  0;
+       toplevel->signal_event().connect (sigc::mem_fun (*this, &CrossfadeEditor::canvas_event));
 
+       fade[Out].line = new ArdourCanvas::Line (*(canvas->root()));
+       fade[Out].line->property_width_pixels() = 1;
+       fade[Out].line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorLine.get();
+
+       fade[Out].shading = new ArdourCanvas::Polygon (*(canvas->root()));
+       fade[Out].shading->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorLineShading.get();
+
+       fade[In].line = new ArdourCanvas::Line (*(canvas->root()));
+       fade[In].line->property_width_pixels() = 1;
+       fade[In].line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorLine.get();
+
+       fade[In].shading = new ArdourCanvas::Polygon (*(canvas->root()));
+       fade[In].shading->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorLineShading.get();
+
+       fade[In].shading->signal_event().connect (sigc::mem_fun (*this, &CrossfadeEditor::canvas_event));
+       fade[In].line->signal_event().connect (sigc::mem_fun (*this, &CrossfadeEditor::curve_event));
+       fade[Out].shading->signal_event().connect (sigc::mem_fun (*this, &CrossfadeEditor::canvas_event));
+       fade[Out].line->signal_event().connect (sigc::mem_fun (*this, &CrossfadeEditor::curve_event));
 
        select_in_button.set_name (X_("CrossfadeEditCurveButton"));
        select_out_button.set_name (X_("CrossfadeEditCurveButton"));
 
-       select_in_button.clicked.connect (bind (slot (this, &CrossfadeEditor::curve_select_clicked), In));
-       select_out_button.clicked.connect (bind (slot (this, &CrossfadeEditor::curve_select_clicked), Out));
+       select_in_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &CrossfadeEditor::curve_select_clicked), In));
+       select_out_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &CrossfadeEditor::curve_select_clicked), Out));
 
        HBox* acbox = manage (new HBox);
-       
+
        audition_box.set_border_width (7);
        audition_box.set_spacing (5);
        audition_box.set_homogeneous (false);
@@ -196,7 +174,7 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
        audition_box.pack_start (audition_right_dry_button, false, false);
 
        Frame* audition_frame = manage (new Frame (_("Audition")));
-       
+
        audition_frame->set_name (X_("CrossfadeEditFrame"));
        audition_frame->add (audition_box);
 
@@ -204,12 +182,12 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
 
        Frame* canvas_frame = manage (new Frame);
        canvas_frame->add (*canvas);
-       canvas_frame->set_shadow_type (GTK_SHADOW_IN);
+       canvas_frame->set_shadow_type (Gtk::SHADOW_IN);
 
-       fade_in_table.attach (select_in_button, 0, 2, 0, 1, GTK_FILL|GTK_EXPAND);
-       fade_out_table.attach (select_out_button, 0, 2, 0, 1, GTK_FILL|GTK_EXPAND);
+       fade_in_table.attach (select_in_button, 0, 2, 0, 1, Gtk::FILL|Gtk::EXPAND);
+       fade_out_table.attach (select_out_button, 0, 2, 0, 1, Gtk::FILL|Gtk::EXPAND);
 
-       Pixmap *pxmap;
+       Image *pxmap;
        Button* pbutton;
        int row;
        int col;
@@ -219,11 +197,12 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
 
        for (list<Preset*>::iterator i = fade_in_presets->begin(); i != fade_in_presets->end(); ++i) {
 
-               pxmap = manage (new Pixmap ((*i)->xpm));
+               pxmap = manage (new Image (::get_icon ((*i)->image_name)));
                pbutton = manage (new Button);
                pbutton->add (*pxmap);
                pbutton->set_name ("CrossfadeEditButton");
-               pbutton->clicked.connect (bind (slot (*this, &CrossfadeEditor::apply_preset), *i));
+               pbutton->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &CrossfadeEditor::apply_preset), *i));
+               ARDOUR_UI::instance()->set_tip (pbutton, (*i)->name, "");
                fade_in_table.attach (*pbutton, col, col+1, row, row+1);
                fade_in_buttons.push_back (pbutton);
 
@@ -240,11 +219,12 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
 
        for (list<Preset*>::iterator i = fade_out_presets->begin(); i != fade_out_presets->end(); ++i) {
 
-               pxmap = manage (new Pixmap ((*i)->xpm));
+               pxmap = manage (new Image (::get_icon ((*i)->image_name)));
                pbutton = manage (new Button);
                pbutton->add (*pxmap);
                pbutton->set_name ("CrossfadeEditButton");
-               pbutton->clicked.connect (bind (slot (*this, &CrossfadeEditor::apply_preset), *i));
+               pbutton->signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &CrossfadeEditor::apply_preset), *i));
+               ARDOUR_UI::instance()->set_tip (pbutton, (*i)->name, "");
                fade_out_table.attach (*pbutton, col, col+1, row, row+1);
                fade_out_buttons.push_back (pbutton);
 
@@ -258,8 +238,8 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
 
        clear_button.set_name ("CrossfadeEditButton");
        revert_button.set_name ("CrossfadeEditButton");
-       ok_button.set_name ("CrossfadeEditButton");
-       cancel_button.set_name ("CrossfadeEditButton");
+       ok_button->set_name ("CrossfadeEditButton");
+       cancel_button->set_name ("CrossfadeEditButton");
        preroll_button.set_name ("CrossfadeEditButton");
        postroll_button.set_name ("CrossfadeEditButton");
        audition_both_button.set_name ("CrossfadeEditAuditionButton");
@@ -268,28 +248,13 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
        audition_right_dry_button.set_name ("CrossfadeEditAuditionButton");
        audition_right_button.set_name ("CrossfadeEditAuditionButton");
 
-       clear_button.clicked.connect (slot (*this, &CrossfadeEditor::clear));
-       revert_button.clicked.connect (slot (*this, &CrossfadeEditor::reset));
-       audition_both_button.toggled.connect (slot (*this, &CrossfadeEditor::audition_toggled));
-       audition_right_button.toggled.connect (slot (*this, &CrossfadeEditor::audition_right_toggled));
-       audition_right_dry_button.toggled.connect (slot (*this, &CrossfadeEditor::audition_right_dry_toggled));
-       audition_left_button.toggled.connect (slot (*this, &CrossfadeEditor::audition_left_toggled));
-       audition_left_dry_button.toggled.connect (slot (*this, &CrossfadeEditor::audition_left_dry_toggled));
-
-       action_box.set_border_width (7);
-       action_box.set_spacing (5);
-       action_box.set_homogeneous (false);
-       action_box.pack_end (cancel_button, false, false);
-       action_box.pack_end (ok_button, false, false);
-       action_box.pack_end (revert_button, false, false);
-       action_box.pack_end (clear_button, false, false);
-
-       Frame* edit_frame = manage (new Frame (_("Edit")));
-       edit_frame->set_name (X_("CrossfadeEditFrame"));
-       edit_frame->add (action_box);
-
-       Gtk::HBox* action_center_box = manage (new HBox);
-       action_center_box->pack_start (*edit_frame, true, false);
+       clear_button.signal_clicked().connect (sigc::mem_fun(*this, &CrossfadeEditor::clear));
+       revert_button.signal_clicked().connect (sigc::mem_fun(*this, &CrossfadeEditor::reset));
+       audition_both_button.signal_toggled().connect (sigc::mem_fun(*this, &CrossfadeEditor::audition_toggled));
+       audition_right_button.signal_toggled().connect (sigc::mem_fun(*this, &CrossfadeEditor::audition_right_toggled));
+       audition_right_dry_button.signal_toggled().connect (sigc::mem_fun(*this, &CrossfadeEditor::audition_right_dry_toggled));
+       audition_left_button.signal_toggled().connect (sigc::mem_fun(*this, &CrossfadeEditor::audition_left_toggled));
+       audition_left_dry_button.signal_toggled().connect (sigc::mem_fun(*this, &CrossfadeEditor::audition_left_dry_toggled));
 
        roll_box.pack_start (preroll_button, false, false);
        roll_box.pack_start (postroll_button, false, false);
@@ -303,35 +268,33 @@ CrossfadeEditor::CrossfadeEditor (Session& s, Crossfade& xf, double my, double m
        vpacker2->set_spacing (7);
        vpacker2->pack_start (*acbox, false, false);
        vpacker2->pack_start (*rcenter_box, false, false);
-       vpacker2->pack_start (*action_center_box, false, false);
 
        curve_button_box.set_spacing (7);
        curve_button_box.pack_start (fade_out_table, false, false, 12);
        curve_button_box.pack_start (*vpacker2, false, false, 12);
        curve_button_box.pack_start (fade_in_table, false, false, 12);
-       
-       vpacker.set_border_width (12);
-       vpacker.set_spacing (5);
-       vpacker.pack_start (*canvas_frame, true, true);
-       vpacker.pack_start (curve_button_box, false, false);
+
+       get_vbox()->pack_start (*canvas_frame, true, true);
+       get_vbox()->pack_start (curve_button_box, false, false);
 
        /* button to allow hackers to check the actual curve values */
 
 //     Button* foobut = manage (new Button ("dump"));
-//     foobut->clicked.connect (slot (*this, &CrossfadeEditor::dump));
+//     foobut-.signal_clicked().connect (sigc::mem_fun(*this, &CrossfadeEditor::dump));
 //     vpacker.pack_start (*foobut, false, false);
 
        current = In;
-       set (xfade.fade_in(), In);
+       set (xfade->fade_in(), In);
 
        current = Out;
-       set (xfade.fade_out(), Out);
+       set (xfade->fade_out(), Out);
 
        curve_select_clicked (In);
 
-       xfade.StateChanged.connect (slot (*this, &CrossfadeEditor::xfade_changed));
+       xfade->StateChanged.connect (sigc::mem_fun(*this, &CrossfadeEditor::xfade_changed));
 
-       session.AuditionActive.connect (slot (*this, &CrossfadeEditor::audition_state_changed));
+       _session_connections.add_connection (_session->AuditionActive.connect (sigc::mem_fun(*this, &CrossfadeEditor::audition_state_changed)));
+       show_all_children();
 }
 
 CrossfadeEditor::~CrossfadeEditor()
@@ -358,7 +321,7 @@ CrossfadeEditor::dump ()
 void
 CrossfadeEditor::audition_state_changed (bool yn)
 {
-       ENSURE_GUI_THREAD (bind (slot (*this, &CrossfadeEditor::audition_state_changed), yn));
+       ENSURE_GUI_THREAD (*this, &CrossfadeEditor::audition_state_changed, yn)
 
        if (!yn) {
                audition_both_button.set_active (false);
@@ -370,15 +333,15 @@ CrossfadeEditor::audition_state_changed (bool yn)
 }
 
 void
-CrossfadeEditor::set (const ARDOUR::Curve& curve, WhichFade which)
+CrossfadeEditor::set (const ARDOUR::AutomationList& curve, WhichFade which)
 {
        double firstx, endx;
-       ARDOUR::Curve::const_iterator the_end;
+       ARDOUR::AutomationList::const_iterator the_end;
 
        for (list<Point*>::iterator i = fade[which].points.begin(); i != fade[which].points.end(); ++i) {
                        delete *i;
        }
-       
+
        fade[which].points.clear ();
        fade[which].gain_curve.clear ();
        fade[which].normative_curve.clear ();
@@ -386,60 +349,108 @@ CrossfadeEditor::set (const ARDOUR::Curve& curve, WhichFade which)
        if (curve.empty()) {
                goto out;
        }
-       
-       the_end = curve.const_end();
+
+       the_end = curve.end();
        --the_end;
-       
-       firstx = (*curve.const_begin())->when;
+
+       firstx = (*curve.begin())->when;
        endx = (*the_end)->when;
 
-       for (ARDOUR::Curve::const_iterator i = curve.const_begin(); i != curve.const_end(); ++i) {
-               
+       for (ARDOUR::AutomationList::const_iterator i = curve.begin(); i != curve.end(); ++i) {
+
                double xfract = ((*i)->when - firstx) / (endx - firstx);
                double yfract = ((*i)->value - miny) / (maxy - miny);
-               
+
                Point* p = make_point ();
 
                p->move_to (x_coordinate (xfract), y_coordinate (yfract),
                            xfract, yfract);
-               
+
                fade[which].points.push_back (p);
        }
 
        /* no need to sort because curve is already time-ordered */
 
   out:
-       
+
        swap (which, current);
        redraw ();
        swap (which, current);
 }
 
-gint                
-CrossfadeEditor::_canvas_event (GtkCanvasItem* item, GdkEvent* event, gpointer data)
+bool
+CrossfadeEditor::curve_event (GdkEvent* event)
 {
-       CrossfadeEditor* ed = static_cast<CrossfadeEditor*> (data);
-       return ed->canvas_event (item, event);
+       /* treat it like a toplevel event */
+
+       return canvas_event (event);
 }
 
-gint
-CrossfadeEditor::canvas_event (GtkCanvasItem* item, GdkEvent* event)
+bool
+CrossfadeEditor::point_event (GdkEvent* event, Point* point)
+{
+
+       if (point->curve != fade[current].line) {
+               return FALSE;
+       }
+
+       switch (event->type) {
+       case GDK_BUTTON_PRESS:
+               point_grabbed = true;
+               break;
+       case GDK_BUTTON_RELEASE:
+               point_grabbed = false;
+
+               if (Keyboard::is_delete_event (&event->button)) {
+                       fade[current].points.remove (point);
+                       delete point;
+               }
+
+               redraw ();
+               break;
+
+       case GDK_MOTION_NOTIFY:
+               if (point_grabbed) {
+                       double new_x, new_y;
+
+                       /* can't drag first or last points horizontally */
+
+                       if (point == fade[current].points.front() || point == fade[current].points.back()) {
+                               new_x = point->x;
+                       } else {
+                               new_x = (event->motion.x - canvas_border)/effective_width();
+                       }
+
+                       new_y = 1.0 - ((event->motion.y - canvas_border)/effective_height());
+                       point->move_to (x_coordinate (new_x), y_coordinate (new_y),
+                                       new_x, new_y);
+                       redraw ();
+               }
+               break;
+       default:
+               break;
+       }
+       return TRUE;
+}
+
+bool
+CrossfadeEditor::canvas_event (GdkEvent* event)
 {
        switch (event->type) {
        case GDK_BUTTON_PRESS:
                add_control_point ((event->button.x - canvas_border)/effective_width(),
                                   1.0 - ((event->button.y - canvas_border)/effective_height()));
-               return TRUE;
+               return true;
                break;
        default:
                break;
        }
-       return FALSE;
+       return false;
 }
 
 CrossfadeEditor::Point::~Point()
 {
-       gtk_object_destroy (GTK_OBJECT(box));
+       delete box;
 }
 
 CrossfadeEditor::Point*
@@ -447,21 +458,16 @@ CrossfadeEditor::make_point ()
 {
        Point* p = new Point;
 
-       p->box = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                     gtk_canvas_simplerect_get_type(),
-                                     "fill", (gboolean) TRUE,
-                                     "fill_color_rgba", color_map[cCrossfadeEditorPointFill],
-                                     "outline_color_rgba", color_map[cCrossfadeEditorPointOutline],
-                                     "outline_pixels", (gint) 1,
-                                     NULL);
+       p->box = new ArdourCanvas::SimpleRect (*(canvas->root()));
+       p->box->property_fill() = true;
+       p->box->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorPointFill.get();
+       p->box->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorPointOutline.get();
+       p->box->property_outline_pixels() = 1;
 
        p->curve = fade[current].line;
 
-       gtk_object_set_data (GTK_OBJECT(p->box), "point", p);
-       gtk_signal_connect (GTK_OBJECT(p->box), "event", 
-                           (GtkSignalFunc) _point_event, 
-                           this);
-       
+       p->box->signal_event().connect (sigc::bind (sigc::mem_fun (*this, &CrossfadeEditor::point_event), p));
+
        return p;
 }
 
@@ -471,12 +477,12 @@ CrossfadeEditor::add_control_point (double x, double y)
        PointSorter cmp;
 
        /* enforce end point x location */
-       
+
        if (fade[current].points.empty()) {
                x = 0.0;
        } else if (fade[current].points.size() == 1) {
                x = 1.0;
-       } 
+       }
 
        Point* p = make_point ();
 
@@ -495,31 +501,29 @@ CrossfadeEditor::Point::move_to (double nx, double ny, double xfract, double yfr
        double x1 = nx - half_size;
        double x2 = nx + half_size;
 
-       gtk_canvas_item_set (box,
-                            "x1", x1,
-                            "x2", x2,
-                            "y1", ny - half_size,
-                            "y2", ny + half_size,
-                            NULL);
+       box->property_x1() = x1;
+       box->property_x2() = x2;
+
+       box->property_y1() = ny - half_size;
+       box->property_y2() = ny + half_size;
+
        x = xfract;
        y = yfract;
 }
 
 void
-CrossfadeEditor::canvas_allocation (GtkAllocation *alloc)
+CrossfadeEditor::canvas_allocation (Gtk::Allocation& /*alloc*/)
 {
        if (toplevel) {
-               gtk_canvas_item_set (toplevel,
-                                    "x1", 0.0,
-                                    "y1", 0.0,
-                                    "x2", (double) _canvas->allocation.width + canvas_border,
-                                    "y2", (double) _canvas->allocation.height + canvas_border,
-                                    NULL);
+               toplevel->property_x1() = 0.0;
+               toplevel->property_y1() = 0.0;
+               toplevel->property_x2() = (double) canvas->get_allocation().get_width() + canvas_border;
+               toplevel->property_y2() = (double) canvas->get_allocation().get_height() + canvas_border;
        }
 
-       gtk_canvas_set_scroll_region (GTK_CANVAS(_canvas), 0.0, 0.0,
-                                     _canvas->allocation.width,
-                                     _canvas->allocation.height);
+       canvas->set_scroll_region (0.0, 0.0,
+                                  canvas->get_allocation().get_width(),
+                                  canvas->get_allocation().get_height());
 
        Point* end = make_point ();
        PointSorter cmp;
@@ -545,9 +549,9 @@ CrossfadeEditor::canvas_allocation (GtkAllocation *alloc)
                (*i)->move_to (x_coordinate((*i)->x), y_coordinate((*i)->y),
                               (*i)->x, (*i)->y);
        }
-       
+
        end = make_point ();
-       
+
        if (fade[Out].points.size() > 1) {
                Point* old_end = fade[Out].points.back();
                fade[Out].points.pop_back ();
@@ -570,7 +574,7 @@ CrossfadeEditor::canvas_allocation (GtkAllocation *alloc)
                               y_coordinate ((*i)->y),
                               (*i)->x, (*i)->y);
        }
-       
+
        WhichFade old_current = current;
        current = In;
        redraw ();
@@ -578,151 +582,92 @@ CrossfadeEditor::canvas_allocation (GtkAllocation *alloc)
        redraw ();
        current = old_current;
 
-       double spu = xfade.length() / (double) effective_width();
+       double spu = xfade->length() / (double) effective_width();
 
        if (fade[In].waves.empty()) {
-               make_waves (xfade.in(), In);
+               make_waves (xfade->in(), In);
        }
 
        if (fade[Out].waves.empty()) {
-               make_waves (xfade.out(), Out);
+               make_waves (xfade->out(), Out);
        }
 
        double ht;
-       vector<GtkCanvasItem*>::iterator i;
+       vector<ArdourCanvas::WaveView*>::iterator i;
        uint32_t n;
 
-       ht = _canvas->allocation.height / xfade.in().n_channels();
+       ht = canvas->get_allocation().get_height() / xfade->in()->n_channels();
 
        for (n = 0, i = fade[In].waves.begin(); i != fade[In].waves.end(); ++i, ++n) {
                double yoff;
 
                yoff = n * ht;
 
-               gtk_canvas_item_set ((*i),
-                                    "y", yoff,
-                                    "height", ht,
-                                    "samples_per_unit", spu,
-                                    NULL);
+               (*i)->property_y() = yoff;
+               (*i)->property_height() = ht;
+               (*i)->property_samples_per_unit() = spu;
        }
 
-       ht = _canvas->allocation.height / xfade.out().n_channels();
+       ht = canvas->get_allocation().get_height() / xfade->out()->n_channels();
 
        for (n = 0, i = fade[Out].waves.begin(); i != fade[Out].waves.end(); ++i, ++n) {
                double yoff;
 
                yoff = n * ht;
 
-               gtk_canvas_item_set ((*i),
-                                    "y", yoff,
-                                    "height", ht,
-                                    "samples_per_unit", spu,
-                                    NULL);
-       }
-
-}
-
-gint
-CrossfadeEditor::_point_event (GtkCanvasItem* item, GdkEvent* event, gpointer data)
-{
-       CrossfadeEditor* ed = static_cast<CrossfadeEditor*> (data);
-       return ed->point_event (item, event);
-}
-
-gint
-CrossfadeEditor::point_event (GtkCanvasItem* item, GdkEvent* event)
-{
-       Point* point = static_cast<Point*> (gtk_object_get_data (GTK_OBJECT (item), "point"));
-
-       if (point->curve != fade[current].line) {
-               return FALSE;
-       }
-
-       switch (event->type) {
-       case GDK_BUTTON_PRESS:
-               point_grabbed = true;
-               break;
-       case GDK_BUTTON_RELEASE:
-               point_grabbed = false;
-
-               if (Keyboard::is_delete_event (&event->button)) {
-                       fade[current].points.remove (point);
-                       delete point;
-               }
-
-               redraw ();
-               break;
-
-       case GDK_MOTION_NOTIFY:
-               if (point_grabbed) {
-                       double new_x, new_y;
-
-                       /* can't drag first or last points horizontally */
-
-                       if (point == fade[current].points.front() || point == fade[current].points.back()) {
-                               new_x = point->x;
-                       } else {
-                               new_x = (event->motion.x - canvas_border)/effective_width();
-                       }
-
-                       new_y = 1.0 - ((event->motion.y - canvas_border)/effective_height());
-                       point->move_to (x_coordinate (new_x), y_coordinate (new_y), 
-                                       new_x, new_y);
-                       redraw ();
-               }
-               break;
-       default:
-               break;
+               (*i)->property_y() = yoff;
+               (*i)->property_height() = ht;
+               (*i)->property_samples_per_unit() = spu;
        }
-       return TRUE;
-}
 
-gint
-CrossfadeEditor::_curve_event (GtkCanvasItem* item, GdkEvent* event, gpointer data)
-{
-       CrossfadeEditor* ed = static_cast<CrossfadeEditor*> (data);
-       return ed->curve_event (item, event);
 }
 
-gint
-CrossfadeEditor::curve_event (GtkCanvasItem* item, GdkEvent* event)
-{
-       /* treat it like a toplevel event */
-
-       return canvas_event (item, event);
-}
 
 void
-CrossfadeEditor::xfade_changed (Change ignored)
+CrossfadeEditor::xfade_changed (Change)
 {
-       set (xfade.fade_in(), In);
-       set (xfade.fade_out(), Out);
+       set (xfade->fade_in(), In);
+       set (xfade->fade_out(), Out);
 }
 
 void
 CrossfadeEditor::redraw ()
 {
-       if (_canvas->allocation.width < 2) {
+       if (canvas->get_allocation().get_width() < 2) {
                return;
        }
 
-       jack_nframes_t len = xfade.length ();
+       nframes_t len = xfade->length ();
 
        fade[current].normative_curve.clear ();
        fade[current].gain_curve.clear ();
 
        for (list<Point*>::iterator i = fade[current].points.begin(); i != fade[current].points.end(); ++i) {
                fade[current].normative_curve.add ((*i)->x, (*i)->y);
-               fade[current].gain_curve.add (((*i)->x * len), (*i)->y);
+               double offset;
+               if (current==In)
+                       offset = xfade->in()->start();
+               else
+                       offset = xfade->out()->start()+xfade->out()->length()-xfade->length();
+               fade[current].gain_curve.add (((*i)->x * len) + offset, (*i)->y);
        }
 
+
        size_t npoints = (size_t) effective_width();
        float vec[npoints];
 
-       fade[current].normative_curve.get_vector (0, 1.0, vec, npoints);
-       
-       GtkCanvasPoints* pts = get_canvas_points ("xfade edit1", npoints);
-       GtkCanvasPoints* spts = get_canvas_points ("xfade edit2", npoints + 3);
+       fade[current].normative_curve.curve().get_vector (0, 1.0, vec, npoints);
+
+       ArdourCanvas::Points pts;
+       ArdourCanvas::Points spts;
+
+       while (pts.size() < npoints) {
+               pts.push_back (Gnome::Art::Point (0,0));
+       }
+
+       while (spts.size() < npoints + 3) {
+               spts.push_back (Gnome::Art::Point (0,0));
+       }
 
        /* the shade coordinates *MUST* be in anti-clockwise order.
         */
@@ -731,66 +676,77 @@ CrossfadeEditor::redraw ()
 
                /* lower left */
 
-               spts->coords[0] = canvas_border;
-               spts->coords[1] = effective_height() + canvas_border;
+               spts[0].set_x (canvas_border);
+               spts[0].set_y (effective_height() + canvas_border);
 
                /* lower right */
 
-               spts->coords[2] = effective_width() + canvas_border;
-               spts->coords[3] = effective_height() + canvas_border;
+               spts[1].set_x (effective_width() + canvas_border);
+               spts[1].set_y (effective_height() + canvas_border);
 
                /* upper right */
 
-               spts->coords[4] = effective_width() + canvas_border;
-               spts->coords[5] = canvas_border;
+               spts[2].set_x (effective_width() + canvas_border);
+               spts[2].set_y (canvas_border);
+
 
-               
        } else {
 
                /*  upper left */
-               
-               spts->coords[0] = canvas_border;
-               spts->coords[1] = canvas_border;
+
+               spts[0].set_x (canvas_border);
+               spts[0].set_y (canvas_border);
 
                /* lower left */
 
-               spts->coords[2] = canvas_border;
-               spts->coords[3] = effective_height() + canvas_border;
+               spts[1].set_x (canvas_border);
+               spts[1].set_y (effective_height() + canvas_border);
 
                /* lower right */
 
-               spts->coords[4] = effective_width() + canvas_border;
-               spts->coords[5] = effective_height() + canvas_border;
+               spts[2].set_x (effective_width() + canvas_border);
+               spts[2].set_y (effective_height() + canvas_border);
 
        }
 
-       size_t last_spt = ((npoints + 3) * 2) - 2;
+       size_t last_spt = (npoints + 3) - 1;
 
        for (size_t i = 0; i < npoints; ++i) {
 
                double y = vec[i];
-               
-               pts->coords[i*2] = canvas_border + i;
-               pts->coords[(i*2)+1] = y_coordinate (y);
 
-               spts->coords[last_spt - (i*2)] = canvas_border + i;
-               spts->coords[last_spt - (i*2) + 1] = pts->coords[(i*2)+1];
-       }
+               pts[i].set_x (canvas_border + i);
+               pts[i].set_y  (y_coordinate (y));
 
-       gtk_canvas_item_set (fade[current].line, "points", pts, NULL);
-       gtk_canvas_item_set (fade[current].shading, "points", spts, NULL);
+               spts[last_spt - i].set_x (canvas_border + i);
+               spts[last_spt - i].set_y (pts[i].get_y());
+       }
 
-       gtk_canvas_points_unref (pts);
-       gtk_canvas_points_unref (spts);
+       fade[current].line->property_points() = pts;
+       fade[current].shading->property_points() = spts;
 
-       for (vector<GtkCanvasItem*>::iterator i = fade[current].waves.begin(); i != fade[current].waves.end(); ++i) {
-               gtk_canvas_item_set ((*i), "gain_src", &fade[current].gain_curve, NULL);
+       for (vector<ArdourCanvas::WaveView*>::iterator i = fade[current].waves.begin(); i != fade[current].waves.end(); ++i) {
+               (*i)->property_gain_src() = static_cast<Evoral::Curve*>(&fade[current].gain_curve.curve());
        }
 }
 
 void
 CrossfadeEditor::apply_preset (Preset *preset)
 {
+
+       WhichFade wf =  find(fade_in_presets->begin(), fade_in_presets->end(), preset) != fade_in_presets->end() ? In : Out;
+
+       if (current != wf) {
+
+               if (wf == In) {
+                       select_in_button.clicked();
+               } else {
+                       select_out_button.clicked();
+               }
+
+               curve_select_clicked (wf);
+       }
+
        for (list<Point*>::iterator i = fade[current].points.begin(); i != fade[current].points.end(); ++i) {
                delete *i;
        }
@@ -810,19 +766,19 @@ CrossfadeEditor::apply_preset (Preset *preset)
 void
 CrossfadeEditor::apply ()
 {
-       _apply_to (&xfade);
+       _apply_to (xfade);
 }
 
 void
-CrossfadeEditor::_apply_to (Crossfade* xf)
+CrossfadeEditor::_apply_to (boost::shared_ptr<Crossfade> xf)
 {
-       ARDOUR::Curve& in (xf->fade_in());
-       ARDOUR::Curve& out (xf->fade_out());
+       ARDOUR::AutomationList& in (xf->fade_in());
+       ARDOUR::AutomationList& out (xf->fade_out());
 
        /* IN */
 
 
-       ARDOUR::Curve::const_iterator the_end = in.const_end();
+       ARDOUR::AutomationList::const_iterator the_end = in.end();
        --the_end;
 
        double firstx = (*in.begin())->when;
@@ -842,7 +798,7 @@ CrossfadeEditor::_apply_to (Crossfade* xf)
 
        /* OUT */
 
-       the_end = out.const_end();
+       the_end = out.end();
        --the_end;
 
        firstx = (*out.begin())->when;
@@ -865,12 +821,12 @@ CrossfadeEditor::_apply_to (Crossfade* xf)
 }
 
 void
-CrossfadeEditor::setup (Crossfade* xfade)
+CrossfadeEditor::setup (boost::shared_ptr<Crossfade> xfade)
 {
        _apply_to (xfade);
        xfade->set_active (true);
-       xfade->fade_in().solve ();
-       xfade->fade_out().solve ();
+       xfade->fade_in().curve().solve ();
+       xfade->fade_out().curve().solve ();
 }
 
 void
@@ -888,8 +844,10 @@ CrossfadeEditor::clear ()
 void
 CrossfadeEditor::reset ()
 {
-       set (xfade.fade_in(),  In);
-       set (xfade.fade_out(), Out);
+       set (xfade->fade_in(),  In);
+       set (xfade->fade_out(), Out);
+
+        curve_select_clicked (current);
 }
 
 void
@@ -900,99 +858,179 @@ CrossfadeEditor::build_presets ()
        fade_in_presets = new Presets;
        fade_out_presets = new Presets;
 
-       /* FADE OUT */
+       /* FADE IN */
 
-       p = new Preset (hiin_xpm);
-       p->push_back (PresetPoint (0, 0));
-       p->push_back (PresetPoint (0.0207373, 0.197222));
-       p->push_back (PresetPoint (0.0645161, 0.525));
-       p->push_back (PresetPoint (0.152074, 0.802778));
-       p->push_back (PresetPoint (0.276498, 0.919444));
-       p->push_back (PresetPoint (0.481567, 0.980556));
-       p->push_back (PresetPoint (0.767281, 1));
-       p->push_back (PresetPoint (1, 1));
-       fade_in_presets->push_back (p);
-       
-       p = new Preset (loin_xpm);
+       p = new Preset ("Linear (-6dB)", "crossfade-in-linear");
        p->push_back (PresetPoint (0, 0));
-       p->push_back (PresetPoint (0.389401, 0.0333333));
-       p->push_back (PresetPoint (0.629032, 0.0861111));
-       p->push_back (PresetPoint (0.829493, 0.233333));
-       p->push_back (PresetPoint (0.9447, 0.483333));
-       p->push_back (PresetPoint (0.976959, 0.697222));
-       p->push_back (PresetPoint (1, 1));
+       p->push_back (PresetPoint (0.000000, 0.000000));
+       p->push_back (PresetPoint (0.166667, 0.166366));
+       p->push_back (PresetPoint (0.333333, 0.332853));
+       p->push_back (PresetPoint (0.500000, 0.499459));
+       p->push_back (PresetPoint (0.666667, 0.666186));
+       p->push_back (PresetPoint (0.833333, 0.833033));
+       p->push_back (PresetPoint (1.000000, 1.000000));
        fade_in_presets->push_back (p);
 
-       p = new Preset (regin_xpm);
+       p = new Preset ("S(1)-curve", "crossfade-in-S1");
        p->push_back (PresetPoint (0, 0));
-       p->push_back (PresetPoint (0.0737327, 0.308333));
-       p->push_back (PresetPoint (0.246544, 0.658333));
-       p->push_back (PresetPoint (0.470046, 0.886111));
-       p->push_back (PresetPoint (0.652074, 0.972222));
-       p->push_back (PresetPoint (0.771889, 0.988889));
+       p->push_back (PresetPoint (0.1, 0.01));
+       p->push_back (PresetPoint (0.2, 0.03));
+       p->push_back (PresetPoint (0.8, 0.97));
+       p->push_back (PresetPoint (0.9, 0.99));
        p->push_back (PresetPoint (1, 1));
        fade_in_presets->push_back (p);
 
-       p = new Preset (regin2_xpm);
-       p->push_back (PresetPoint (0, 0));
-       p->push_back (PresetPoint (0.304147, 0.0694444));
-       p->push_back (PresetPoint (0.529954, 0.152778));
-       p->push_back (PresetPoint (0.725806, 0.333333));
-       p->push_back (PresetPoint (0.847926, 0.558333));
-       p->push_back (PresetPoint (0.919355, 0.730556));
-       p->push_back (PresetPoint (1, 1));
+       p = new Preset ("S(2)-curve", "crossfade-in-S2");
+       p->push_back (PresetPoint (0.0, 0.0));
+       p->push_back (PresetPoint (0.055, 0.222));
+       p->push_back (PresetPoint (0.163, 0.35));
+       p->push_back (PresetPoint (0.837, 0.678));
+       p->push_back (PresetPoint (0.945, 0.783));
+       p->push_back (PresetPoint (1.0, 1.0));
        fade_in_presets->push_back (p);
 
-       p = new Preset (linin_xpm);
-       p->push_back (PresetPoint (0, 0));
-       p->push_back (PresetPoint (1, 1));
+       p = new Preset ("Constant Power (-3dB)", "crossfade-in-constant-power");
+
+       p->push_back (PresetPoint (0.000000, 0.000000));
+       p->push_back (PresetPoint (0.166667, 0.282192));
+       p->push_back (PresetPoint (0.333333, 0.518174));
+       p->push_back (PresetPoint (0.500000, 0.707946));
+       p->push_back (PresetPoint (0.666667, 0.851507));
+       p->push_back (PresetPoint (0.833333, 0.948859));
+       p->push_back (PresetPoint (1.000000, 1.000000));
+
        fade_in_presets->push_back (p);
 
+       if (!Profile->get_sae()) {
+
+               p = new Preset ("Short cut", "crossfade-in-short-cut");
+               p->push_back (PresetPoint (0, 0));
+               p->push_back (PresetPoint (0.389401, 0.0333333));
+               p->push_back (PresetPoint (0.629032, 0.0861111));
+               p->push_back (PresetPoint (0.829493, 0.233333));
+               p->push_back (PresetPoint (0.9447, 0.483333));
+               p->push_back (PresetPoint (0.976959, 0.697222));
+               p->push_back (PresetPoint (1, 1));
+               fade_in_presets->push_back (p);
+
+               p = new Preset ("Slow cut", "crossfade-in-slow-cut");
+               p->push_back (PresetPoint (0, 0));
+               p->push_back (PresetPoint (0.304147, 0.0694444));
+               p->push_back (PresetPoint (0.529954, 0.152778));
+               p->push_back (PresetPoint (0.725806, 0.333333));
+               p->push_back (PresetPoint (0.847926, 0.558333));
+               p->push_back (PresetPoint (0.919355, 0.730556));
+               p->push_back (PresetPoint (1, 1));
+               fade_in_presets->push_back (p);
+
+               p = new Preset ("Fast cut", "crossfade-in-fast-cut");
+               p->push_back (PresetPoint (0, 0));
+               p->push_back (PresetPoint (0.0737327, 0.308333));
+               p->push_back (PresetPoint (0.246544, 0.658333));
+               p->push_back (PresetPoint (0.470046, 0.886111));
+               p->push_back (PresetPoint (0.652074, 0.972222));
+               p->push_back (PresetPoint (0.771889, 0.988889));
+               p->push_back (PresetPoint (1, 1));
+               fade_in_presets->push_back (p);
+
+               p = new Preset ("Long cut", "crossfade-in-long-cut");
+               p->push_back (PresetPoint (0, 0));
+               p->push_back (PresetPoint (0.0207373, 0.197222));
+               p->push_back (PresetPoint (0.0645161, 0.525));
+               p->push_back (PresetPoint (0.152074, 0.802778));
+               p->push_back (PresetPoint (0.276498, 0.919444));
+               p->push_back (PresetPoint (0.481567, 0.980556));
+               p->push_back (PresetPoint (0.767281, 1));
+               p->push_back (PresetPoint (1, 1));
+               fade_in_presets->push_back (p);
+       }
+
        /* FADE OUT */
 
-       p = new Preset (hiout_xpm);
-       p->push_back (PresetPoint (0, 1));
-       p->push_back (PresetPoint (0.305556, 1));
-       p->push_back (PresetPoint (0.548611, 0.991736));
-       p->push_back (PresetPoint (0.759259, 0.931129));
-       p->push_back (PresetPoint (0.918981, 0.68595));
-       p->push_back (PresetPoint (0.976852, 0.22865));
-       p->push_back (PresetPoint (1, 0));
-       fade_out_presets->push_back (p);
-       
-       p = new Preset (regout_xpm);
+       // p = new Preset ("regout.xpm");
+       p = new Preset ("Linear (-6dB cut)", "crossfade-out-linear");
        p->push_back (PresetPoint (0, 1));
-       p->push_back (PresetPoint (0.228111, 0.988889));
-       p->push_back (PresetPoint (0.347926, 0.972222));
-       p->push_back (PresetPoint (0.529954, 0.886111));
-       p->push_back (PresetPoint (0.753456, 0.658333));
-       p->push_back (PresetPoint (0.9262673, 0.308333));
-       p->push_back (PresetPoint (1, 0));
+       p->push_back (PresetPoint (0.000000, 1.000000));
+       p->push_back (PresetPoint (0.166667, 0.833033));
+       p->push_back (PresetPoint (0.333333, 0.666186));
+       p->push_back (PresetPoint (0.500000, 0.499459));
+       p->push_back (PresetPoint (0.666667, 0.332853));
+       p->push_back (PresetPoint (0.833333, 0.166366));
+       p->push_back (PresetPoint (1.000000, 0.000000));
        fade_out_presets->push_back (p);
 
-       p = new Preset (loout_xpm);
+       p = new Preset ("S(1)-Curve", "crossfade-out-S1");
        p->push_back (PresetPoint (0, 1));
-       p->push_back (PresetPoint (0.023041, 0.697222));
-       p->push_back (PresetPoint (0.0553,   0.483333));
-       p->push_back (PresetPoint (0.170507, 0.233333));
-       p->push_back (PresetPoint (0.370968, 0.0861111));
-       p->push_back (PresetPoint (0.610599, 0.0333333));
+       p->push_back (PresetPoint (0.1, 0.99));
+       p->push_back (PresetPoint (0.2, 0.97));
+       p->push_back (PresetPoint (0.8, 0.03));
+       p->push_back (PresetPoint (0.9, 0.01));
        p->push_back (PresetPoint (1, 0));
        fade_out_presets->push_back (p);
 
-       p = new Preset (regout2_xpm);
-       p->push_back (PresetPoint (0, 1));
-       p->push_back (PresetPoint (0.080645, 0.730556));
-       p->push_back (PresetPoint (0.277778, 0.289256));
-       p->push_back (PresetPoint (0.470046, 0.152778));
-       p->push_back (PresetPoint (0.695853, 0.0694444));
-       p->push_back (PresetPoint (10));
+       p = new Preset ("S(2)-Curve", "crossfade-out-S2");
+       p->push_back (PresetPoint (0.0, 1.0));
+       p->push_back (PresetPoint (0.163, 0.678));
+       p->push_back (PresetPoint (0.055, 0.783));
+       p->push_back (PresetPoint (0.837, 0.35));
+       p->push_back (PresetPoint (0.945, 0.222));
+       p->push_back (PresetPoint (1.0, 0.0));
        fade_out_presets->push_back (p);
 
-       p = new Preset (linout_xpm);
-       p->push_back (PresetPoint (0, 1));
-       p->push_back (PresetPoint (1, 0));
+       // p = new Preset ("linout.xpm");
+       p = new Preset ("Constant Power (-3dB cut)", "crossfade-out-constant-power");
+       p->push_back (PresetPoint (0.000000, 1.000000));
+       p->push_back (PresetPoint (0.166667, 0.948859));
+       p->push_back (PresetPoint (0.333333, 0.851507));
+       p->push_back (PresetPoint (0.500000, 0.707946));
+       p->push_back (PresetPoint (0.666667, 0.518174));
+       p->push_back (PresetPoint (0.833333, 0.282192));
+       p->push_back (PresetPoint (1.000000, 0.000000));
        fade_out_presets->push_back (p);
+
+       if (!Profile->get_sae()) {
+               // p = new Preset ("hiout.xpm");
+               p = new Preset ("Short cut", "crossfade-out-short-cut");
+               p->push_back (PresetPoint (0, 1));
+               p->push_back (PresetPoint (0.305556, 1));
+               p->push_back (PresetPoint (0.548611, 0.991736));
+               p->push_back (PresetPoint (0.759259, 0.931129));
+               p->push_back (PresetPoint (0.918981, 0.68595));
+               p->push_back (PresetPoint (0.976852, 0.22865));
+               p->push_back (PresetPoint (1, 0));
+               fade_out_presets->push_back (p);
+
+               p = new Preset ("Slow cut", "crossfade-out-slow-cut");
+               p->push_back (PresetPoint (0, 1));
+               p->push_back (PresetPoint (0.228111, 0.988889));
+               p->push_back (PresetPoint (0.347926, 0.972222));
+               p->push_back (PresetPoint (0.529954, 0.886111));
+               p->push_back (PresetPoint (0.753456, 0.658333));
+               p->push_back (PresetPoint (0.9262673, 0.308333));
+               p->push_back (PresetPoint (1, 0));
+               fade_out_presets->push_back (p);
+
+               p = new Preset ("Fast cut", "crossfade-out-fast-cut");
+               p->push_back (PresetPoint (0, 1));
+               p->push_back (PresetPoint (0.080645, 0.730556));
+               p->push_back (PresetPoint (0.277778, 0.289256));
+               p->push_back (PresetPoint (0.470046, 0.152778));
+               p->push_back (PresetPoint (0.695853, 0.0694444));
+               p->push_back (PresetPoint (1, 0));
+               fade_out_presets->push_back (p);
+
+               // p = new Preset ("loout.xpm");
+               p = new Preset ("Long cut", "crossfade-out-long-cut");
+               p->push_back (PresetPoint (0, 1));
+               p->push_back (PresetPoint (0.023041, 0.697222));
+               p->push_back (PresetPoint (0.0553,   0.483333));
+               p->push_back (PresetPoint (0.170507, 0.233333));
+               p->push_back (PresetPoint (0.370968, 0.0861111));
+               p->push_back (PresetPoint (0.610599, 0.0333333));
+               p->push_back (PresetPoint (1, 0));
+               fade_out_presets->push_back (p);
+
+       }
 }
 
 void
@@ -1002,75 +1040,63 @@ CrossfadeEditor::curve_select_clicked (WhichFade wf)
 
        if (wf == In) {
 
-               for (vector<GtkCanvasItem*>::iterator i = fade[In].waves.begin(); i != fade[In].waves.end(); ++i) {
-                       gtk_canvas_item_set ((*i), "wave_color", color_map[cSelectedCrossfadeEditorWave], NULL);
+               for (vector<ArdourCanvas::WaveView*>::iterator i = fade[In].waves.begin(); i != fade[In].waves.end(); ++i) {
+                       (*i)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorWave.get();
+                       (*i)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorWave.get();
                }
 
-               for (vector<GtkCanvasItem*>::iterator i = fade[Out].waves.begin(); i != fade[Out].waves.end(); ++i) {
-                       gtk_canvas_item_set ((*i), "wave_color", color_map[cCrossfadeEditorWave], NULL);
+               for (vector<ArdourCanvas::WaveView*>::iterator i = fade[Out].waves.begin(); i != fade[Out].waves.end(); ++i) {
+                       (*i)->property_wave_color() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorWave.get();
+                       (*i)->property_fill_color() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorWave.get();
                }
 
-               gtk_canvas_item_set (fade[In].line, "fill_color_rgba", color_map[cSelectedCrossfadeEditorLine], NULL);
-               gtk_canvas_item_set (fade[Out].line, "fill_color_rgba", color_map[cCrossfadeEditorLine], NULL);
-               gtk_canvas_item_hide (fade[Out].shading);
-               gtk_canvas_item_show (fade[In].shading);
+               fade[In].line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorLine.get();
+               fade[Out].line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorLine.get();
+               fade[Out].shading->hide();
+               fade[In].shading->show();
 
                for (list<Point*>::iterator i = fade[Out].points.begin(); i != fade[Out].points.end(); ++i) {
-                       gtk_canvas_item_hide ((*i)->box);
+                       (*i)->box->hide();
                }
 
                for (list<Point*>::iterator i = fade[In].points.begin(); i != fade[In].points.end(); ++i) {
-                       gtk_canvas_item_show ((*i)->box);
-               }
-
-               for (vector<Button*>::iterator i = fade_out_buttons.begin(); i != fade_out_buttons.end(); ++i) {
-                       (*i)->set_sensitive (false);
-               }
-
-               for (vector<Button*>::iterator i = fade_in_buttons.begin(); i != fade_in_buttons.end(); ++i) {
-                       (*i)->set_sensitive (true);
+                       (*i)->box->show ();
                }
 
        } else {
 
-               for (vector<GtkCanvasItem*>::iterator i = fade[In].waves.begin(); i != fade[In].waves.end(); ++i) {
-                       gtk_canvas_item_set ((*i), "wave_color", color_map[cCrossfadeEditorWave], NULL);
+               for (vector<ArdourCanvas::WaveView*>::iterator i = fade[In].waves.begin(); i != fade[In].waves.end(); ++i) {
+                       (*i)->property_wave_color() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorWave.get();
+                       (*i)->property_fill_color() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorWave.get();
                }
 
-               for (vector<GtkCanvasItem*>::iterator i = fade[Out].waves.begin(); i != fade[Out].waves.end(); ++i) {
-                       gtk_canvas_item_set ((*i), "wave_color", color_map[cSelectedCrossfadeEditorWave], NULL);
+               for (vector<ArdourCanvas::WaveView*>::iterator i = fade[Out].waves.begin(); i != fade[Out].waves.end(); ++i) {
+                       (*i)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorWave.get();
+                       (*i)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorWave.get();
                }
 
-               gtk_canvas_item_set (fade[Out].line, "fill_color_rgba", color_map[cSelectedCrossfadeEditorLine], NULL);
-               gtk_canvas_item_set (fade[In].line, "fill_color_rgba", color_map[cCrossfadeEditorLine], NULL);
-               gtk_canvas_item_hide (fade[In].shading);
-               gtk_canvas_item_show (fade[Out].shading);
+               fade[Out].line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorLine.get();
+               fade[In].line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeEditorLine.get();
+               fade[In].shading->hide();
+               fade[Out].shading->show();
 
                for (list<Point*>::iterator i = fade[In].points.begin(); i != fade[In].points.end(); ++i) {
-                       gtk_canvas_item_hide ((*i)->box);
-               }
-               
-               for (list<Point*>::iterator i = fade[Out].points.begin(); i != fade[Out].points.end(); ++i) {
-                       gtk_canvas_item_show ((*i)->box);
-               }
-
-               for (vector<Button*>::iterator i = fade_out_buttons.begin(); i != fade_out_buttons.end(); ++i) {
-                       (*i)->set_sensitive (true);
+                       (*i)->box->hide();
                }
 
-               for (vector<Button*>::iterator i = fade_in_buttons.begin(); i != fade_in_buttons.end(); ++i) {
-                       (*i)->set_sensitive (false);
+               for (list<Point*>::iterator i = fade[Out].points.begin(); i != fade[Out].points.end(); ++i) {
+                       (*i)->box->show();
                }
 
        }
 }
 
-double 
+double
 CrossfadeEditor::x_coordinate (double& xfract) const
 {
        xfract = min (1.0, xfract);
        xfract = max (0.0, xfract);
-    
+
        return canvas_border + (xfract * effective_width());
 }
 
@@ -1080,191 +1106,185 @@ CrossfadeEditor::y_coordinate (double& yfract) const
        yfract = min (1.0, yfract);
        yfract = max (0.0, yfract);
 
-       return (_canvas->allocation.height - (canvas_border)) - (yfract * effective_height());
+       return (canvas->get_allocation().get_height() - (canvas_border)) - (yfract * effective_height());
 }
 
 void
-CrossfadeEditor::make_waves (AudioRegion& region, WhichFade which)
+CrossfadeEditor::make_waves (boost::shared_ptr<AudioRegion> region, WhichFade which)
 {
        gdouble ht;
-       uint32_t nchans = region.n_channels();
+       uint32_t nchans = region->n_channels();
        guint32 color;
        double spu;
 
        if (which == In) {
-               color = color_map[cSelectedCrossfadeEditorWave];
+               color = ARDOUR_UI::config()->canvasvar_SelectedCrossfadeEditorWave.get();
        } else {
-               color = color_map[cCrossfadeEditorWave];
+               color = ARDOUR_UI::config()->canvasvar_CrossfadeEditorWave.get();
        }
 
-       ht = _canvas->allocation.height / (double) nchans;
-       spu = xfade.length() / (double) effective_width();
+       ht = canvas->get_allocation().get_height() / (double) nchans;
+       spu = xfade->length() / (double) effective_width();
 
        for (uint32_t n = 0; n < nchans; ++n) {
-               
+
                gdouble yoff = n * ht;
-               
-               if (region.source(n).peaks_ready (bind (slot (*this, &CrossfadeEditor::peaks_ready), &region, which))) {
-                       
-                       GtkCanvasItem *wave = gtk_canvas_item_new (gtk_canvas_root (GTK_CANVAS(_canvas)),
-                                                                  gtk_canvas_waveview_get_type (),
-                                                                  "data_src", (gpointer) &region,
-                                                                  "cache_updater", (gboolean) TRUE,
-                                                                  "cache", gtk_canvas_waveview_cache_new (),
-                                                                  "channel", (guint32) n,
-                                                                  "length_function", (gpointer) region_length_from_c,
-                                                                  "sourcefile_length_function", (gpointer) sourcefile_length_from_c,
-                                                                  "peak_function", (gpointer) region_read_peaks_from_c,
-                                                                  "gain_function", (gpointer) curve_get_vector_from_c,
-                                                                  "gain_src", &fade[which].gain_curve,
-                                                                  "x", (double) canvas_border,
-                                                                  "y", yoff,
-                                                                  "height", ht,
-                                                                  "samples_per_unit", spu,
-                                                                  "amplitude_above_axis", 2.0,
-                                                                  "wave_color", color,
-                                                                  NULL);
-                       
-                       gtk_canvas_item_lower_to_bottom (wave);
-                       fade[which].waves.push_back (wave);
+
+               if (region->audio_source(n)->peaks_ready (boost::bind (&CrossfadeEditor::peaks_ready, this, boost::weak_ptr<AudioRegion>(region), which), peaks_ready_connection)) {
+                       WaveView* waveview = new WaveView (*(canvas->root()));
+
+                       waveview->property_data_src() = region.get();
+                       waveview->property_cache_updater() =  true;
+                       waveview->property_cache() = WaveView::create_cache();
+                       waveview->property_channel() = n;
+                       waveview->property_length_function() = (void*) region_length_from_c;
+                       waveview->property_sourcefile_length_function() = (void*) sourcefile_length_from_c;
+                       waveview->property_peak_function() = (void*) region_read_peaks_from_c;
+                       waveview->property_gain_function() = (void*) curve_get_vector_from_c;
+                       waveview->property_gain_src() = static_cast<Evoral::Curve*>(&fade[which].gain_curve.curve());
+                       waveview->property_x() = canvas_border;
+                       waveview->property_y() = yoff;
+                       waveview->property_height() = ht;
+                       waveview->property_samples_per_unit() = spu;
+                       waveview->property_amplitude_above_axis() = 2.0;
+                       waveview->property_wave_color() = color;
+                       waveview->property_fill_color() = color;
+
+                       if (which==In)
+                               waveview->property_region_start() = region->start();
+                       else
+                               waveview->property_region_start() = region->start()+region->length()-xfade->length();
+
+                       waveview->lower_to_bottom();
+                       fade[which].waves.push_back (waveview);
                }
        }
 
-       gtk_canvas_item_lower_to_bottom (toplevel);
+       toplevel->lower_to_bottom();
 }
 
 void
-CrossfadeEditor::peaks_ready (AudioRegion* r, WhichFade which)
+CrossfadeEditor::peaks_ready (boost::weak_ptr<AudioRegion> wr, WhichFade which)
 {
+       boost::shared_ptr<AudioRegion> r (wr.lock());
+
+       if (!r) {
+               return;
+       }
+
        /* this should never be called, because the peak files for an xfade
           will be ready by the time we want them. but our API forces us
           to provide this, so ..
        */
-
-       make_waves (*r, which);
+       peaks_ready_connection.disconnect ();
+       make_waves (r, which);
 }
 
 void
-CrossfadeEditor::audition_both ()
+CrossfadeEditor::audition (Audition which)
 {
-       AudioPlaylist& pl (session.the_auditioner().prepare_playlist());
-       jack_nframes_t preroll;
-       jack_nframes_t postroll;
-       jack_nframes_t length;
-       jack_nframes_t left_start_offset;
-       jack_nframes_t right_length;
-       jack_nframes_t left_length;
-
-       if (preroll_button.get_active()) {
-               preroll = ARDOUR_UI::instance()->preroll_clock.current_duration ();
+       AudioPlaylist& pl (_session->the_auditioner()->prepare_playlist());
+       nframes_t preroll;
+       nframes_t postroll;
+       nframes_t left_start_offset;
+       nframes_t right_length;
+       nframes_t left_length;
+
+       if (which != Right && preroll_button.get_active()) {
+               preroll = _session->frame_rate() * 2;  //2 second hardcoded preroll for now
        } else {
                preroll = 0;
        }
 
-       if (postroll_button.get_active()) {
-               postroll = ARDOUR_UI::instance()->postroll_clock.current_duration ();
+       if (which != Left && postroll_button.get_active()) {
+               postroll = _session->frame_rate() * 2;  //2 second hardcoded postroll for now
        } else {
                postroll = 0;
        }
 
-       if ((left_start_offset = xfade.out().length() - xfade.length()) >= preroll) {
-               left_start_offset -= preroll;
-       } 
+       // Is there enough data for the whole preroll?
+       left_length = xfade->length();
+       if ((left_start_offset = xfade->out()->length() - xfade->length()) > preroll) {
+               left_start_offset -= preroll;
+       } else {
+               preroll = left_start_offset;
+               left_start_offset = 0;
+       }
+       left_length += preroll;
+
+       // Is there enough data for the whole postroll?
+       right_length = xfade->length();
+       if ((xfade->in()->length() - right_length) > postroll) {
+               right_length += postroll;
+       } else {
+               right_length = xfade->in()->length();
+       }
 
-       length = 0;
+       boost::shared_ptr<AudioRegion> left (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (xfade->out(), left_start_offset, left_length, "xfade out",
+                                                                                                             0, Region::DefaultFlags, false)));
+       boost::shared_ptr<AudioRegion> right (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (xfade->in(), 0, right_length, "xfade in",
+                                                                                                              0, Region::DefaultFlags, false)));
 
-       if ((left_length = xfade.length()) < xfade.out().length() - left_start_offset) {
-               length += postroll;
-       }
+       //apply a 20ms declicking fade at the start and end of auditioning
+       left->set_fade_in_active(true);
+       left->set_fade_in_length(_session->frame_rate() / 50);
+       right->set_fade_out_active(true);
+       right->set_fade_out_length(_session->frame_rate() / 50);
 
-       right_length = xfade.length();
+       pl.add_region (left, 0);
+       pl.add_region (right, 1 + preroll);
 
-       if (xfade.in().length() - right_length < postroll) {
-               right_length += postroll;
+       if (which == Left) {
+               right->set_scale_amplitude (0.0);
+       } else if (which == Right) {
+               left->set_scale_amplitude (0.0);
        }
 
-       AudioRegion* left = new AudioRegion (xfade.out(), left_start_offset, left_length, "xfade out", 
-                                            0, Region::DefaultFlags, false);
-       AudioRegion* right = new AudioRegion (xfade.in(), 0, right_length, "xfade in", 
-                                             0, Region::DefaultFlags, false);
-       
-       pl.add_region (*left, 0);
-       pl.add_region (*right, 1+preroll);
-
        /* there is only one ... */
+       pl.foreach_crossfade (sigc::mem_fun (*this, &CrossfadeEditor::setup));
 
-       pl.foreach_crossfade (this, &CrossfadeEditor::setup);
+       _session->audition_playlist ();
+}
 
-       session.audition_playlist ();
+void
+CrossfadeEditor::audition_both ()
+{
+       audition (Both);
 }
 
 void
 CrossfadeEditor::audition_left_dry ()
 {
-       AudioRegion* left = new AudioRegion (xfade.out(), xfade.out().length() - xfade.length(), xfade.length(), "xfade left", 
-                                            0, Region::DefaultFlags, false);
-       
-       session.audition_region (*left);
+       boost::shared_ptr<AudioRegion> left (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (xfade->out(), xfade->out()->length() - xfade->length(), xfade->length(), "xfade left",
+                                                                                                             0, Region::DefaultFlags, false)));
+
+       _session->audition_region (left);
 }
 
 void
 CrossfadeEditor::audition_left ()
 {
-       AudioPlaylist& pl (session.the_auditioner().prepare_playlist());
-
-       AudioRegion* left = new AudioRegion (xfade.out(), xfade.out().length() - xfade.length(), xfade.length(), "xfade left", 
-                                            0, Region::DefaultFlags, false);
-       AudioRegion* right = new AudioRegion (xfade.in(), 0, xfade.length(), "xfade in", 
-                                             0, Region::DefaultFlags, false);
-
-       pl.add_region (*left, 0);
-       pl.add_region (*right, 1);
-
-       right->set_muted (true);
-
-       /* there is only one ... */
-
-       pl.foreach_crossfade (this, &CrossfadeEditor::setup);
-
-       session.audition_playlist ();
-
-       /* memory leak for regions */
+       audition (Left);
 }
 
 void
 CrossfadeEditor::audition_right_dry ()
 {
-       AudioRegion* right = new AudioRegion (xfade.in(), 0, xfade.length(), "xfade in", 
-                                             0, Region::DefaultFlags, false);
-       session.audition_region (*right);
+       boost::shared_ptr<AudioRegion> right (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (xfade->in(), 0, xfade->length(), "xfade in",
+                                                                                                              0, Region::DefaultFlags, false)));
+       _session->audition_region (right);
 }
 
 void
 CrossfadeEditor::audition_right ()
 {
-       AudioPlaylist& pl (session.the_auditioner().prepare_playlist());
-
-       AudioRegion* left = new AudioRegion (xfade.out(), xfade.out().length() - xfade.length(), xfade.length(), "xfade out", 
-                                            0, Region::DefaultFlags, false);
-       AudioRegion* right = new AudioRegion (xfade.out(), 0, xfade.length(), "xfade out", 
-                                             0, Region::DefaultFlags, false);
-
-       pl.add_region (*left, 0);
-       pl.add_region (*right, 1);
-       
-       left->set_muted (true);
-
-       /* there is only one ... */
-
-       pl.foreach_crossfade (this, &CrossfadeEditor::setup);
-
-       session.audition_playlist ();
+       audition (Right);
 }
-       
+
 void
 CrossfadeEditor::cancel_audition ()
 {
-       session.cancel_audition ();
+       _session->cancel_audition ();
 }
 
 void
@@ -1272,7 +1292,7 @@ CrossfadeEditor::audition_toggled ()
 {
        bool x;
 
-       if ((x = audition_both_button.get_active ()) != session.is_auditioning()) {
+       if ((x = audition_both_button.get_active ()) != _session->is_auditioning()) {
 
                if (x) {
                        audition_both ();
@@ -1286,8 +1306,8 @@ void
 CrossfadeEditor::audition_right_toggled ()
 {
        bool x;
-       
-       if ((x = audition_right_button.get_active ()) != session.is_auditioning()) {
+
+       if ((x = audition_right_button.get_active ()) != _session->is_auditioning()) {
 
                if (x) {
                        audition_right ();
@@ -1302,7 +1322,7 @@ CrossfadeEditor::audition_right_dry_toggled ()
 {
        bool x;
 
-       if ((x = audition_right_dry_button.get_active ()) != session.is_auditioning()) {
+       if ((x = audition_right_dry_button.get_active ()) != _session->is_auditioning()) {
 
                if (x) {
                        audition_right_dry ();
@@ -1317,7 +1337,7 @@ CrossfadeEditor::audition_left_toggled ()
 {
        bool x;
 
-       if ((x = audition_left_button.get_active ()) != session.is_auditioning()) {
+       if ((x = audition_left_button.get_active ()) != _session->is_auditioning()) {
 
                if (x) {
                        audition_left ();
@@ -1332,8 +1352,8 @@ CrossfadeEditor::audition_left_dry_toggled ()
 {
        bool x;
 
-       if ((x = audition_left_dry_button.get_active ()) != session.is_auditioning()) {
-               
+       if ((x = audition_left_dry_button.get_active ()) != _session->is_auditioning()) {
+
                if (x) {
                        audition_left_dry ();
                } else {
@@ -1341,3 +1361,44 @@ CrossfadeEditor::audition_left_dry_toggled ()
                }
        }
 }
+
+bool
+CrossfadeEditor::on_key_press_event (GdkEventKey */*ev*/)
+{
+       return true;
+}
+
+bool
+CrossfadeEditor::on_key_release_event (GdkEventKey* ev)
+{
+       switch (ev->keyval) {
+       case GDK_Right:
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
+                       audition_right_dry_button.set_active (!audition_right_dry_button.get_active());
+               } else {
+                       audition_right_button.set_active (!audition_right_button.get_active());
+               }
+               break;
+
+       case GDK_Left:
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
+                       audition_left_dry_button.set_active (!audition_left_dry_button.get_active());
+               } else {
+                       audition_left_button.set_active (!audition_left_button.get_active());
+               }
+               break;
+
+       case GDK_space:
+               if (_session->is_auditioning()) {
+                       cancel_audition ();
+               } else {
+                       audition_both_button.set_active (!audition_both_button.get_active());
+               }
+               break;
+
+       default:
+               break;
+       }
+
+       return true;
+}