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editor_markers.cc

/*
    Copyright (C) 2000 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
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id: editor_markers.cc,v 1.31 2005/04/30 16:47:22 pauld Exp $
*/

#include <sigc++/rettype.h>
#include <cstdlib>
#include <cmath>

#include <gtk-canvas.h>
#include <gtkmmext/gtk_ui.h>

#include <ardour/location.h>

#include "editor.h"
#include "marker.h"
#include "selection.h"
#include "editing.h"
#include "gui_thread.h"

#include "i18n.h"

using namespace std;
using namespace SigC;
using namespace ARDOUR;
using namespace Gtk;

void
Editor::clear_marker_display ()
{
      for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
            delete i->second;
      }

      location_markers.clear ();
}

void
Editor::add_new_location (Location *location)
{
      LocationMarkers *lam = new LocationMarkers;
      uint32_t color;

      if (location->is_cd_marker()) {
            color = location_cd_marker_color;
      } else if (location->is_mark()) {
            color = location_marker_color;
      } else if (location->is_auto_loop()) {
            color = location_loop_color;
      } else if (location->is_auto_punch()) {
            color = location_punch_color;
      } else {
            color = location_range_color;
      }

      if (location->is_mark()) {
            lam->start = new Marker (*this, GTK_CANVAS_GROUP(marker_group), color, 
                               location->name(), Marker::Mark, PublicEditor::canvas_marker_event, location->start());
            lam->end   = 0;

      } else if (location->is_auto_loop()) {
            // transport marker
            lam->start = new Marker (*this, GTK_CANVAS_GROUP(transport_marker_group), color, 
                               location->name(), Marker::LoopStart, PublicEditor::canvas_marker_event, location->start());
            lam->end   = new Marker (*this, GTK_CANVAS_GROUP(transport_marker_group), color, 
                               location->name(), Marker::LoopEnd, PublicEditor::canvas_marker_event, location->end());
            
      } else if (location->is_auto_punch()) {
            // transport marker
            lam->start = new Marker (*this, GTK_CANVAS_GROUP(transport_marker_group), color, 
                               location->name(), Marker::PunchIn, PublicEditor::canvas_marker_event, location->start());
            lam->end   = new Marker (*this, GTK_CANVAS_GROUP(transport_marker_group), color, 
                               location->name(), Marker::PunchOut, PublicEditor::canvas_marker_event, location->end());
            
      } else {

            // range marker
            lam->start = new Marker (*this, GTK_CANVAS_GROUP(range_marker_group), color, 
                               location->name(), Marker::Start, PublicEditor::canvas_marker_event, location->start());
            lam->end   = new Marker (*this, GTK_CANVAS_GROUP(range_marker_group), color, 
                               location->name(), Marker::End, PublicEditor::canvas_marker_event, location->end());
      }

      if (location->is_hidden ()) {
            lam->hide();
      } else {
            lam->show ();
      }

      location->start_changed.connect (slot (*this, &Editor::location_changed));
      location->end_changed.connect (slot (*this, &Editor::location_changed));
      location->changed.connect (slot (*this, &Editor::location_changed));
      location->name_changed.connect (slot (*this, &Editor::location_changed));
      location->FlagsChanged.connect (slot (*this, &Editor::location_flags_changed));

      pair<Location*,LocationMarkers*> newpair;

      newpair.first = location;
      newpair.second = lam;

      location_markers.insert (newpair);
}

void
Editor::location_changed (Location *location)
{
      ENSURE_GUI_THREAD (bind (slot (*this, &Editor::location_changed), location));

      LocationMarkers *lam = find_location_markers (location);

      if (lam == 0) {
            /* a location that isn't "marked" with markers */
            return;
      }
      
      lam->set_name (location->name());
      lam->set_position (location->start(), location->end());

      if (location->is_auto_loop()) {
            update_loop_range_view ();
      } else if (location->is_auto_punch()) {
            update_punch_range_view ();
      }
}

void
Editor::location_flags_changed (Location *location, void *src)
{
      ENSURE_GUI_THREAD(bind (slot (*this, &Editor::location_flags_changed), location, src));
      
      LocationMarkers *lam = find_location_markers (location);
      
      if (lam == 0) {
            /* a location that isn't "marked" with markers */
            return;
      }

      if (location->is_cd_marker()) {
            lam->set_color_rgba (location_cd_marker_color);
      } else if (location->is_mark()) {
            lam->set_color_rgba (location_marker_color);
      } else if (location->is_auto_punch()) {
            lam->set_color_rgba (location_punch_color);
      } else if (location->is_auto_loop()) {
            lam->set_color_rgba (location_loop_color);
      } else {
            lam->set_color_rgba (location_range_color);
      }
      
      if (location->is_hidden()) {
            lam->hide();
      } else {
            lam->show ();
      }
}

Editor::LocationMarkers::~LocationMarkers ()
{
      if (start) {
            delete start;
      }

      if (end) {
            delete end;
      }
}

Editor::LocationMarkers *
Editor::find_location_markers (Location *location)
{
      LocationMarkerMap::iterator i;

      for (i = location_markers.begin(); i != location_markers.end(); ++i) {
            if ((*i).first == location) {
                  return (*i).second;
            }
      }

      return 0;
}

Location *
Editor::find_location_from_marker (Marker *marker, bool& is_start)
{
      LocationMarkerMap::iterator i;

      for (i = location_markers.begin(); i != location_markers.end(); ++i) {
            LocationMarkers *lm = (*i).second;
            if (lm->start == marker) {
                  is_start = true;
                  return (*i).first;
            } else if (lm->end == marker) {
                  is_start = false;
                  return (*i).first;
            }
      }

      return 0;
}

void
Editor::refresh_location_display_internal (Locations::LocationList& locations)
{
      clear_marker_display ();
      
      for (Locations::LocationList::iterator i = locations.begin(); i != locations.end(); ++i) {
            add_new_location (*i);
      }
}

void
Editor::refresh_location_display ()
{
      ENSURE_GUI_THREAD(slot (*this, &Editor::refresh_location_display));
      
      if (session) {
            session->locations()->apply (*this, &Editor::refresh_location_display_internal);
      }
}

void
Editor::refresh_location_display_s (Change ignored)
{
      ENSURE_GUI_THREAD(bind (slot (*this, &Editor::refresh_location_display_s), ignored));

      if (session) {
            session->locations()->apply (*this, &Editor::refresh_location_display_internal);
      }
}

void
Editor::LocationMarkers::hide() 
{
      start->hide ();
      if (end) { end->hide(); }
}

void
Editor::LocationMarkers::show() 
{
      start->show ();
      if (end) { end->show(); }
}

void
Editor::LocationMarkers::set_name (const string& str) 
{
      start->set_name (str);
      if (end) { end->set_name (str); }
}

void
Editor::LocationMarkers::set_position (jack_nframes_t startf, 
                               jack_nframes_t endf) 
{
      start->set_position (startf);
      if (end) { end->set_position (endf); }
}

void
Editor::LocationMarkers::set_color_rgba (uint32_t rgba) 
{
      start->set_color_rgba (rgba);
      if (end) { end->set_color_rgba (rgba); }
}

void
Editor::mouse_add_new_marker (jack_nframes_t where)
{
      if (session) {
            Location *location = new Location (where, where, "mark", Location::IsMark);
            session->begin_reversible_command (_("add marker"));
            session->add_undo (session->locations()->get_memento());
            session->locations()->add (location, true);
            session->add_redo_no_execute (session->locations()->get_memento());
            session->commit_reversible_command ();
      }
}

void
Editor::remove_marker (GtkCanvasItem* item, GdkEvent* event)
{
      Marker* marker;
      bool is_start;

      if ((marker = static_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* loc = find_location_from_marker (marker, is_start);

      if (session && loc) {
            if (loc->is_end()) {
                  /* you can't hide or delete this marker */
                  return;
            }
            if (loc->is_auto_loop() || loc->is_auto_punch()) {
                  // just hide them
                  loc->set_hidden (true, this);
            }
            else {
                  Gtk::Main::idle.connect (bind (slot (*this, &Editor::really_remove_marker), loc));
            }
      }
}

gint
Editor::really_remove_marker (Location* loc)
{
      session->begin_reversible_command (_("remove marker"));
      session->add_undo (session->locations()->get_memento());
      session->locations()->remove (loc);
      session->add_redo_no_execute (session->locations()->get_memento());
      session->commit_reversible_command ();
      return FALSE;
}

void
Editor::location_gone (Location *location)
{
      ENSURE_GUI_THREAD(bind (slot (*this, &Editor::location_gone), location));
      
      LocationMarkerMap::iterator i;

      if (location == transport_loop_location()) {
            update_loop_range_view (true);
      }

      if (location == transport_punch_location()) {
            update_punch_range_view (true);
      }
      
      for (i = location_markers.begin(); i != location_markers.end(); ++i) {
            if ((*i).first == location) {
                  delete (*i).second;
                  location_markers.erase (i);
                  break;
            }
      }
}

void
Editor::tm_marker_context_menu (GdkEventButton* ev, GtkCanvasItem* item)
{
      if (tm_marker_menu == 0) {
            build_tm_marker_menu ();
      }

      marker_menu_item = item;
      tm_marker_menu->popup (1, ev->time);

}


void
Editor::marker_context_menu (GdkEventButton* ev, GtkCanvasItem* item)
{
      Marker * marker;
      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }
      
      bool is_start;
      Location * loc = find_location_from_marker (marker, is_start);
      if (loc == transport_loop_location() || loc == transport_punch_location()) {
            if (transport_marker_menu == 0) {
                  build_transport_marker_menu ();
            }
            marker_menu_item = item;
            transport_marker_menu->popup (1, ev->time);
      }
      else {
            if (marker_menu == 0) {
                  build_marker_menu ();
            }

            Menu_Helpers::MenuList & children = marker_menu->items();
            // XXX: should really find this some other way
            if (children.size() >= 3) {
                  MenuItem * loopitem = children[2];
                  if (loopitem) {
                        if (loc->is_mark()) {
                              loopitem->set_sensitive(false);
                        }
                        else {
                              loopitem->set_sensitive(true);
                        }
                  }
            }
            
            marker_menu_item = item;
            marker_menu->popup (1, ev->time);
      }
}


void
Editor::new_transport_marker_context_menu (GdkEventButton* ev, GtkCanvasItem* item)
{
      if (new_transport_marker_menu == 0) {
            build_new_transport_marker_menu ();
      }

      new_transport_marker_menu->popup (1, ev->time);

}

void
Editor::transport_marker_context_menu (GdkEventButton* ev, GtkCanvasItem* item)
{
      if (transport_marker_menu == 0) {
            build_transport_marker_menu ();
      }

      transport_marker_menu->popup (1, ev->time);
}

void
Editor::build_marker_menu ()
{
      using namespace Menu_Helpers;

      marker_menu = new Menu;
      MenuList& items = marker_menu->items();
      marker_menu->set_name ("ArdourContextMenu");

      items.push_back (MenuElem (_("Locate to"), slot (*this, &Editor::marker_menu_set_playhead)));
      items.push_back (MenuElem (_("Play from"), slot (*this, &Editor::marker_menu_play_from)));
      items.push_back (MenuElem (_("Loop range"), slot (*this, &Editor::marker_menu_loop_range)));
      items.push_back (MenuElem (_("Set from playhead"), slot (*this, &Editor::marker_menu_set_from_playhead)));
      items.push_back (MenuElem (_("Set from range"), slot (*this, &Editor::marker_menu_set_from_selection)));

      items.push_back (SeparatorElem());

      items.push_back (MenuElem (_("Rename"), slot (*this, &Editor::marker_menu_rename)));
      items.push_back (MenuElem (_("Hide"), slot (*this, &Editor::marker_menu_hide)));
      items.push_back (MenuElem (_("Remove"), slot (*this, &Editor::marker_menu_remove)));
}

void
Editor::build_tm_marker_menu ()
{
      using namespace Menu_Helpers;

      tm_marker_menu = new Menu;
      MenuList& items = tm_marker_menu->items();
      tm_marker_menu->set_name ("ArdourContextMenu");

      items.push_back (MenuElem (_("Edit"), slot (*this, &Editor::marker_menu_edit)));
      items.push_back (MenuElem (_("Remove"), slot (*this, &Editor::marker_menu_remove)));
}

void
Editor::build_new_transport_marker_menu ()
{
      using namespace Menu_Helpers;

      new_transport_marker_menu = new Menu;
      MenuList& items = new_transport_marker_menu->items();
      new_transport_marker_menu->set_name ("ArdourContextMenu");

      items.push_back (MenuElem (_("Set Loop Range"), slot (*this, &Editor::new_transport_marker_menu_set_loop)));
      items.push_back (MenuElem (_("Set Punch Range"), slot (*this, &Editor::new_transport_marker_menu_set_punch)));

      new_transport_marker_menu->unmap_event.connect ( slot (*this, &Editor::new_transport_marker_menu_popdown)); 
}

void
Editor::build_transport_marker_menu ()
{
      using namespace Menu_Helpers;

      transport_marker_menu = new Menu;
      MenuList& items = transport_marker_menu->items();
      transport_marker_menu->set_name ("ArdourContextMenu");

      items.push_back (MenuElem (_("Locate to"), slot (*this, &Editor::marker_menu_set_playhead)));
      items.push_back (MenuElem (_("Play from"), slot (*this, &Editor::marker_menu_play_from)));
      items.push_back (MenuElem (_("Set from playhead"), slot (*this, &Editor::marker_menu_set_from_playhead)));
      items.push_back (MenuElem (_("Set from range"), slot (*this, &Editor::marker_menu_set_from_selection)));
      items.push_back (SeparatorElem());
      items.push_back (MenuElem (_("Hide"), slot (*this, &Editor::marker_menu_hide)));
}

void
Editor::marker_menu_hide ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* l;
      bool is_start;
      
      if ((l = find_location_from_marker (marker, is_start)) != 0) {
            l->set_hidden (true, this);
      }
}

void
Editor::marker_menu_play_from ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* l;
      bool is_start;
      
      if ((l = find_location_from_marker (marker, is_start)) != 0) {

            if (l->is_mark()) {
                  session->request_locate (l->start(), true);
            }
            else {
                  //session->request_bounded_roll (l->start(), l->end());
                  
                  if (is_start) {
                        session->request_locate (l->start(), true);
                  } else {
                        session->request_locate (l->end(), true);
                  }
            }
      }
}

void
Editor::marker_menu_set_playhead ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* l;
      bool is_start;
      
      if ((l = find_location_from_marker (marker, is_start)) != 0) {

            if (l->is_mark()) {
                  session->request_locate (l->start(), false);
            }
            else {
                  if (is_start) {
                        session->request_locate (l->start(), false);
                  } else {
                        session->request_locate (l->end(), false);
                  }
            }
      }
}

void
Editor::marker_menu_set_from_playhead ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* l;
      bool is_start;
      
      if ((l = find_location_from_marker (marker, is_start)) != 0) {

            if (l->is_mark()) {
                  l->set_start (session->transport_frame ());
            }
            else {
                  if (is_start) {
                        l->set_start (session->transport_frame ());
                  } else {
                        l->set_end (session->transport_frame ());
                  }
            }
      }
}

void
Editor::marker_menu_set_from_selection ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* l;
      bool is_start;
      
      if ((l = find_location_from_marker (marker, is_start)) != 0) {

            if (l->is_mark()) {
                  // nothing for now
            }
            else {

                  /* if range selection use first to last */

                  if (mouse_mode == Editing::MouseRange) {
                        if (!selection->time.empty()) {
                              l->set_start (selection->time.start());
                              l->set_end (selection->time.end_frame());
                        }
                  }
                  else {
                        if (!selection->audio_regions.empty()) {
                              l->set_start (selection->audio_regions.start());
                              l->set_end (selection->audio_regions.end_frame());
                        }
                  }
            }
      }
}

void
Editor::marker_menu_loop_range ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* l;
      bool is_start;
      
      if ((l = find_location_from_marker (marker, is_start)) != 0) {
            Location* l2;
            if ((l2 = transport_loop_location()) != 0) {
                  l2->set (l->start(), l->end());
                  
                  // enable looping, reposition and start rolling
                  session->request_auto_loop(true);
                  session->request_locate (l2->start(), true);
            }
      }
}

void
Editor::marker_menu_edit ()
{
      MeterMarker* mm;
      TempoMarker* tm;
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      if ((mm = dynamic_cast<MeterMarker*> (marker)) != 0) {
            edit_meter_section (&mm->meter());
      } else if ((tm = dynamic_cast<TempoMarker*> (marker)) != 0) {
            edit_tempo_section (&tm->tempo());
      } else {
            fatal << X_("programming erorr: unhandled marker type in Editor::marker_menu_edit")
                  << endmsg;
            /*NOTREACHED*/
      }
}

void
Editor::marker_menu_remove ()
{
      MeterMarker* mm;
      TempoMarker* tm;
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      if ((mm = dynamic_cast<MeterMarker*> (marker)) != 0) {
            remove_meter_marker (marker_menu_item);
      } else if ((tm = dynamic_cast<TempoMarker*> (marker)) != 0) {
            remove_tempo_marker (marker_menu_item);
      } else {
            remove_marker (marker_menu_item, (GdkEvent*) 0);
      }
}

void
Editor::marker_menu_rename ()
{
      Marker* marker;

      if ((marker = reinterpret_cast<Marker *> (gtk_object_get_data (GTK_OBJECT(marker_menu_item), "marker"))) == 0) {
            fatal << _("programming error: marker canvas item has no marker object pointer!") << endmsg;
            /*NOTREACHED*/
      }

      Location* loc;
      bool is_start;

      loc = find_location_from_marker (marker, is_start);

      if (!loc) return;
      
      Dialog dialog;
      Entry  entry;
      Button ok_button (_("OK"));
      Button cancel_button (_("Cancel"));
      
      if (loc->is_mark()) {
            dialog.set_title (_("ardour: rename mark"));
      } else {
            dialog.set_title (_("ardour: rename range"));
      }

      dialog.set_name ("MarkRenameWindow");
      dialog.set_usize (300, -1);
      dialog.set_position (GTK_WIN_POS_MOUSE);
      dialog.set_modal (true);

      dialog.get_vbox()->set_border_width (10);
      dialog.get_vbox()->pack_start (entry);
      dialog.get_action_area()->pack_start (ok_button);
      dialog.get_action_area()->pack_start (cancel_button);

      entry.set_text (loc->name());
      entry.set_name ("MarkerNameDisplay");
      ok_button.set_name ("EditorGTKButton");
      cancel_button.set_name ("EditorGTKButton");

      entry.activate.connect (bind (slot (*this, &Editor::finish_sub_event_loop), 1));
      cancel_button.clicked.connect (bind (slot (*this, &Editor::finish_sub_event_loop), -1));
      ok_button.clicked.connect (bind (slot (*this, &Editor::finish_sub_event_loop), 1));
      dialog.delete_event.connect (bind (slot (*this, &Editor::finish_sub_event_loop_on_delete), -1));

      dialog.show_all ();
      entry.grab_focus ();

      run_sub_event_loop ();

      if (sub_event_loop_status == 1) {

            Location* l;
            bool is_start;

            if ((l = find_location_from_marker (marker, is_start)) != 0) {
                  l->set_name (entry.get_text());
            }
      }
}

gint
Editor::new_transport_marker_menu_popdown (GdkEventAny *ev)
{
      // hide rects
      gtk_canvas_item_hide (transport_bar_drag_rect);
      gtk_canvas_item_hide (range_marker_drag_rect);

      return FALSE;
}

void
Editor::new_transport_marker_menu_set_loop ()
{
      if (!session) return;
      
      begin_reversible_command (_("set loop range"));
      
      Location* tll;

      if ((tll = transport_loop_location()) == 0) {
            Location* loc = new Location (temp_location->start(), temp_location->end(), _("Loop"),  Location::IsAutoLoop);
            session->add_undo (session->locations()->get_memento());
            session->locations()->add (loc, true);
            session->set_auto_loop_location (loc);
            session->add_redo_no_execute (session->locations()->get_memento());
      }
      else {
            session->add_undo (rettype<void>(bind (slot (*tll, &Location::set), tll->start(), tll->end())));
            session->add_redo (rettype<void>(bind (slot (*tll, &Location::set), temp_location->start(), temp_location->end())));
            tll->set_hidden (false, this);
            tll->set (temp_location->start(), temp_location->end());
      }
      
      commit_reversible_command ();
}

void
Editor::new_transport_marker_menu_set_punch ()
{
      if (!session) return;
      
      begin_reversible_command (_("set punch range"));
      
      Location* tpl;

      if ((tpl = transport_punch_location()) == 0) {
            tpl = new Location (temp_location->start(), temp_location->end(), _("Punch"), Location::IsAutoPunch);
            session->add_undo (session->locations()->get_memento());
            session->locations()->add (tpl, true);
            session->set_auto_punch_location (tpl);
            session->add_redo_no_execute (session->locations()->get_memento());
      } else {
            session->add_undo (rettype<void>(bind (slot (*tpl, &Location::set), tpl->start(), tpl->end())));
            session->add_redo (rettype<void>(bind (slot (*tpl, &Location::set), temp_location->start(), temp_location->end())));
            tpl->set_hidden(false, this);
            tpl->set(temp_location->start(), temp_location->end());
      }
      
      commit_reversible_command ();
}

void
Editor::update_loop_range_view (bool visibility)
{
      if (session == 0) {
            return;
      }

      Location* tll;

      if (session->get_auto_loop() && ((tll = transport_loop_location()) != 0)) {

            double x1 = frame_to_pixel (tll->start());
            double x2 = frame_to_pixel (tll->end());
            
            gtk_canvas_item_set (transport_loop_range_rect, "x1", x1, "x2", x2, NULL);
            
            if (visibility) {
                  gtk_canvas_item_show (transport_loop_range_rect);
            }
      }
      else if (visibility) {
            gtk_canvas_item_hide (transport_loop_range_rect);
      }
}

void
Editor::update_punch_range_view (bool visibility)
{
      if (session == 0) {
            return;
      }

      Location* tpl;

      if ((session->get_punch_in() || session->get_punch_out()) && ((tpl = transport_punch_location()) != 0)) {

            double x1 = frame_to_pixel (tpl->start());
            double x2 = frame_to_pixel (tpl->end());
            
            gtk_canvas_item_set (transport_punch_range_rect, "x1", x1, "x2", x2, NULL);
            
            if (visibility) {
                  gtk_canvas_item_show (transport_punch_range_rect);
            }
      }
      else if (visibility) {
            gtk_canvas_item_hide (transport_punch_range_rect);
      }

//    if (session->get_punch_in()) {
//          double x = frame_to_pixel (transport_punch_location->start());
//          gtk_canvas_item_set (transport_punchin_line, "x1", x, "x2", x, NULL);
            
//          if (visibility) {
//                gtk_canvas_item_show (transport_punchin_line);
//          }
//    }
//    else if (visibility) {
//          gtk_canvas_item_hide (transport_punchin_line);
//    }
      
//    if (session->get_punch_out()) {
//          double x = frame_to_pixel (transport_punch_location->end());
            
//          gtk_canvas_item_set (transport_punchout_line, "x1", x, "x2", x, NULL);
            
//          if (visibility) {
//                gtk_canvas_item_show (transport_punchout_line);
//          }
//    }
//    else if (visibility) {
//          gtk_canvas_item_hide (transport_punchout_line);
//    }
}

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