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route_params_ui.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.

*/

#include <algorithm>

#include <glibmm/thread.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/stop_signal.h>
#include <gtkmm2ext/window_title.h>

#include <ardour/session.h>
#include <ardour/session_route.h>
#include <ardour/audio_diskstream.h>
#include <ardour/plugin.h>
#include <ardour/plugin_manager.h>
#include <ardour/ardour.h>
#include <ardour/session.h>
#include <ardour/route.h>
#include <ardour/audio_track.h>
#include <ardour/send.h>
#include <ardour/insert.h>
#include <ardour/connection.h>
#include <ardour/session_connection.h>

#include "route_params_ui.h"
#include "keyboard.h"
#include "mixer_strip.h"
#include "plugin_selector.h"
#include "ardour_ui.h"
#include "plugin_ui.h"
#include "io_selector.h"
#include "send_ui.h"
#include "utils.h"
#include "gui_thread.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace sigc;

RouteParams_UI::RouteParams_UI ()
      : ArdourDialog ("track/bus inspector"),
        track_menu(0)
{
      pre_redirect_box = 0;
      post_redirect_box = 0;
      _input_iosel = 0;
      _output_iosel = 0;
      _active_pre_view = 0;
      _active_post_view = 0;
      
      using namespace Notebook_Helpers;

      input_frame.set_shadow_type(Gtk::SHADOW_NONE);
      output_frame.set_shadow_type(Gtk::SHADOW_NONE);
      
      notebook.set_show_tabs (true);
      notebook.set_show_border (true);
      notebook.set_name ("RouteParamNotebook");

      // create the tree model
      route_display_model = ListStore::create(route_display_columns);

      // setup the treeview
      route_display.set_model(route_display_model);
      route_display.append_column(_("Tracks/Buses"), route_display_columns.text);
      route_display.set_name(X_("RouteParamsListDisplay"));
      route_display.get_selection()->set_mode(Gtk::SELECTION_SINGLE); // default
      route_display.set_reorderable(false);
      route_display.set_size_request(75, -1);
      route_display.set_headers_visible(true);
      route_display.set_headers_clickable(true);

      route_select_scroller.add(route_display);
      route_select_scroller.set_policy(Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);


      route_select_frame.set_name("RouteSelectBaseFrame");
      route_select_frame.set_shadow_type (Gtk::SHADOW_IN);
      route_select_frame.add(route_select_scroller);

      list_vpacker.pack_start (route_select_frame, true, true);
      
      notebook.pages().push_back (TabElem (input_frame, _("Inputs")));
      notebook.pages().push_back (TabElem (output_frame, _("Outputs")));
      notebook.pages().push_back (TabElem (pre_redir_hpane, _("Pre-fader Redirects")));
      notebook.pages().push_back (TabElem (post_redir_hpane, _("Post-fader Redirects")));

      notebook.set_name ("InspectorNotebook");
      
      title_label.set_name ("RouteParamsTitleLabel");
      update_title();
      
      // changeable area
      route_param_frame.set_name("RouteParamsBaseFrame");
      route_param_frame.set_shadow_type (Gtk::SHADOW_IN);
      
      
      route_hpacker.pack_start (notebook, true, true);
      
      
      route_vpacker.pack_start (title_label, false, false);
      route_vpacker.pack_start (route_hpacker, true, true);

      
      list_hpane.pack1 (list_vpacker);
      list_hpane.add2 (route_vpacker);

      list_hpane.set_position(110);

      pre_redir_hpane.set_position(110);
      post_redir_hpane.set_position(110);
      
      //global_vpacker.pack_start (list_hpane, true, true);
      //get_vbox()->pack_start (global_vpacker);
      get_vbox()->pack_start (list_hpane);
      
      
      set_name ("RouteParamsWindow");
      set_default_size (620,370);
      set_wmclass (X_("ardour_route_parameters"), "Ardour");

      set_title (_("Track/Bus Inspector"));

      // events
      route_display.get_selection()->signal_changed().connect(mem_fun(*this, &RouteParams_UI::route_selected));
      route_display.get_column(0)->signal_clicked().connect(mem_fun(*this, &RouteParams_UI::show_track_menu));

      add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::BUTTON_RELEASE_MASK);
      
      _plugin_selector = new PluginSelector (PluginManager::the_manager());
      _plugin_selector->signal_delete_event().connect (bind (ptr_fun (just_hide_it), 
                                         static_cast<Window *> (_plugin_selector)));


      signal_delete_event().connect(bind(ptr_fun(just_hide_it), static_cast<Gtk::Window *>(this)));
}

RouteParams_UI::~RouteParams_UI ()
{
}

void
RouteParams_UI::add_routes (Session::RouteList& routes)
{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::add_routes), routes));
      
      for (Session::RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
            boost::shared_ptr<Route> route = (*x);

            if (route->hidden()) {
                  return;
            }
            
            TreeModel::Row row = *(route_display_model->append());
            row[route_display_columns.text] = route->name();
            row[route_display_columns.route] = route;
            
            //route_select_list.rows().back().select ();
            
            route->name_changed.connect (bind (mem_fun(*this, &RouteParams_UI::route_name_changed), route));
            route->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::route_removed), route));
      }
}


void
RouteParams_UI::route_name_changed (void *src, boost::shared_ptr<Route> route)
{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::route_name_changed), src, route));

      bool found = false ;
      TreeModel::Children rows = route_display_model->children();
      for(TreeModel::Children::iterator iter = rows.begin(); iter != rows.end(); ++iter) {
            boost::shared_ptr<Route> r =(*iter)[route_display_columns.route];
            if (r == route) {
                  (*iter)[route_display_columns.text] = route->name() ;
                  found = true ;
                  break;
            }
      }

      if(!found) {
            error << _("route display list item for renamed route not found!") << endmsg;
      }

      if (route == _route) {
            track_input_label.set_text (route->name());
            update_title();
      }
}

void
RouteParams_UI::setup_redirect_boxes()
{
      if (session && _route) {

            // just in case... shouldn't need this
            cleanup_redirect_boxes();
            
            // construct new redirect boxes
            pre_redirect_box = new RedirectBox(PreFader, *session, *_plugin_selector, _rr_selection);
            post_redirect_box = new RedirectBox(PostFader, *session, *_plugin_selector, _rr_selection);

            pre_redirect_box->set_route (_route);
            post_redirect_box->set_route (_route);

              pre_redir_hpane.pack1 (*pre_redirect_box);
            post_redir_hpane.pack1 (*post_redirect_box);

            pre_redirect_box->RedirectSelected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PreFader));
            pre_redirect_box->RedirectUnselected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PreFader));
            post_redirect_box->RedirectSelected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PostFader));
            post_redirect_box->RedirectUnselected.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_selected), PostFader));

            pre_redir_hpane.show_all();
            post_redir_hpane.show_all();
      }
      
}

void
RouteParams_UI::cleanup_redirect_boxes()
{
      if (pre_redirect_box) {
            pre_redir_hpane.remove(*pre_redirect_box);
            delete pre_redirect_box;
            pre_redirect_box = 0;
      }

      if (post_redirect_box) {
            post_redir_hpane.remove(*post_redirect_box);
            delete post_redirect_box;
            post_redirect_box = 0;
      }
}

void
RouteParams_UI::setup_io_frames()
{
      cleanup_io_frames();
      
      // input
      _input_iosel = new IOSelector (*session, _route, true);
      _input_iosel->redisplay ();
        input_frame.add (*_input_iosel);
      input_frame.show_all();
      
      // output
      _output_iosel = new IOSelector (*session, _route, false);
      _output_iosel->redisplay ();
        output_frame.add (*_output_iosel);
      output_frame.show_all();
}

void
RouteParams_UI::cleanup_io_frames()
{
      if (_input_iosel) {
            _input_iosel->Finished (IOSelector::Cancelled);
            input_frame.remove();
            delete _input_iosel;
            _input_iosel = 0;
      }

      if (_output_iosel) {
            _output_iosel->Finished (IOSelector::Cancelled);

            output_frame.remove();
            delete _output_iosel;
            _output_iosel = 0;
      }
}

void
RouteParams_UI::cleanup_pre_view (bool stopupdate)
{
      if (_active_pre_view) {
            GenericPluginUI *   plugui = 0;
            
            if (stopupdate && (plugui = dynamic_cast<GenericPluginUI*>(_active_pre_view)) != 0) {
                    plugui->stop_updating (0);
            }

            _pre_plugin_conn.disconnect();
            pre_redir_hpane.remove(*_active_pre_view);
            delete _active_pre_view;
            _active_pre_view = 0;
      }
}

void
RouteParams_UI::cleanup_post_view (bool stopupdate)
{
      if (_active_post_view) {
            GenericPluginUI *   plugui = 0;
            
            if (stopupdate && (plugui = dynamic_cast<GenericPluginUI*>(_active_post_view)) != 0) {
                    plugui->stop_updating (0);
            }
            _post_plugin_conn.disconnect();
            post_redir_hpane.remove(*_active_post_view);
            delete _active_post_view;
            _active_post_view = 0;
      }
}


void
RouteParams_UI::route_removed (boost::shared_ptr<Route> route)
{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::route_removed), route));

      TreeModel::Children rows = route_display_model->children();
      TreeModel::Children::iterator ri;

      for(TreeModel::Children::iterator iter = rows.begin(); iter != rows.end(); ++iter) {
            boost::shared_ptr<Route> r =(*iter)[route_display_columns.route];

            if (r == route) {
                  route_display_model->erase(iter);
                  break;
            }
      }

      if (route == _route) {
            cleanup_io_frames();
            cleanup_pre_view();
            cleanup_post_view();
            cleanup_redirect_boxes();
            
            _route.reset ((Route*) 0);
            _pre_redirect.reset ((Redirect*) 0);
            _post_redirect.reset ((Redirect*) 0);
            update_title();
      }
}

void
RouteParams_UI::set_session (Session *sess)
{
      ArdourDialog::set_session (sess);

      route_display_model->clear();

      if (session) {
            boost::shared_ptr<Session::RouteList> r = session->get_routes();
            add_routes (*r);
            session->GoingAway.connect (mem_fun(*this, &ArdourDialog::session_gone));
            session->RouteAdded.connect (mem_fun(*this, &RouteParams_UI::add_routes));
            start_updating ();
      } else {
            stop_updating ();
      }

      //route_select_list.thaw ();

      _plugin_selector->set_session (session);
}     


void
RouteParams_UI::session_gone ()
{
      ENSURE_GUI_THREAD(mem_fun(*this, &RouteParams_UI::session_gone));

      route_display_model->clear();

      cleanup_io_frames();
      cleanup_pre_view();
      cleanup_post_view();
      cleanup_redirect_boxes();

      _route.reset ((Route*) 0);
      _pre_redirect.reset ((Redirect*) 0);
      _post_redirect.reset ((Redirect*) 0);
      update_title();

      ArdourDialog::session_gone();

}

void
RouteParams_UI::route_selected()
{
      Glib::RefPtr<TreeSelection> selection = route_display.get_selection();
      TreeModel::iterator iter = selection->get_selected(); // only used with Gtk::SELECTION_SINGLE
      if(iter) {
            //If anything is selected
            boost::shared_ptr<Route> route = (*iter)[route_display_columns.route] ;

            if (_route == route) {
                  // do nothing
                  return;
            }

            // remove event binding from previously selected
            if (_route) {
                  _route_conn.disconnect();
                  _route_ds_conn.disconnect();
                  cleanup_redirect_boxes();
                  cleanup_pre_view();
                  cleanup_post_view();
                  cleanup_io_frames();
            }

            // update the other panes with the correct info
            _route = route;
            //update_routeinfo (route);

            setup_io_frames();
            setup_redirect_boxes();

            // bind to redirects changed event for this route
            _route_conn = route->redirects_changed.connect (mem_fun(*this, &RouteParams_UI::redirects_changed));

            track_input_label.set_text (_route->name());

            update_title();
      } else {
            // no selection
            if (_route) {
                  _route_conn.disconnect();

                  // remove from view
                  cleanup_io_frames();
                  cleanup_pre_view();
                  cleanup_post_view();
                  cleanup_redirect_boxes();

                  _route.reset ((Route*) 0);
                  _pre_redirect.reset ((Redirect*) 0);
                  _post_redirect.reset ((Redirect *) 0);
                  track_input_label.set_text(_("NO TRACK"));
                  update_title();
            }
      }
}

//void
//RouteParams_UI::route_unselected (gint row, gint col, GdkEvent *ev)
//{
//    if (_route) {
//          _route_conn.disconnect();

            // remove from view
//          cleanup_io_frames();
//          cleanup_pre_view();
//          cleanup_post_view();
//          cleanup_redirect_boxes();
            
//          _route.reset ((Route*)0);
//          _pre_redirect = 0;
//          _post_redirect = 0;
//          track_input_label.set_text(_("NO TRACK"));
//          update_title();
//    }
//}

void
RouteParams_UI::redirects_changed (void *src)

{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::redirects_changed), src));
      
//    pre_redirect_list.freeze ();
//    pre_redirect_list.clear ();
//    post_redirect_list.freeze ();
//    post_redirect_list.clear ();
//    if (_route) {
//          _route->foreach_redirect (this, &RouteParams_UI::add_redirect_to_display);
//    }
//    pre_redirect_list.thaw ();
//    post_redirect_list.thaw ();

      cleanup_pre_view();
      cleanup_post_view();
      
      _pre_redirect.reset ((Redirect*) 0);
      _post_redirect.reset ((Redirect*) 0);
      //update_title();
}



void
RouteParams_UI::show_track_menu()
{
      using namespace Menu_Helpers;
      
      if (track_menu == 0) {
            track_menu = new Menu;
            track_menu->set_name ("ArdourContextMenu");
            track_menu->items().push_back 
                        (MenuElem (_("Add Track/Bus"), 
                                 bind (mem_fun (*(ARDOUR_UI::instance()), &ARDOUR_UI::add_route), (Gtk::Window*) 0)));
      }
      track_menu->popup (1, gtk_get_current_event_time());
}



void
RouteParams_UI::redirect_selected (boost::shared_ptr<ARDOUR::Redirect> redirect, ARDOUR::Placement place)
{
      boost::shared_ptr<Insert> insert;

      if ((place == PreFader && _pre_redirect == redirect)
          || (place == PostFader && _post_redirect == redirect)){
            return;
      }
      
      if ((insert = boost::dynamic_pointer_cast<Insert> (redirect)) == 0) {

            boost::shared_ptr<Send> send;
            
            if ((send = boost::dynamic_pointer_cast<Send> (redirect)) != 0) {

                  /* its a send */

                  SendUI *send_ui = new SendUI (send, *session);

                  if (place == PreFader) {
                        cleanup_pre_view();
                        _pre_plugin_conn = send->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), redirect));
                        _active_pre_view = send_ui;
                        
                        pre_redir_hpane.add2 (*_active_pre_view);
                        pre_redir_hpane.show_all();
                  }
                  else {
                        cleanup_post_view();
                        _post_plugin_conn = send->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), redirect));
                        _active_post_view = send_ui;
                        
                        post_redir_hpane.add2 (*_active_post_view);
                        post_redir_hpane.show_all();
                  }
            }

      } else {
            /* its an insert, though we don't know what kind yet. */

            boost::shared_ptr<PluginInsert> plugin_insert;
            boost::shared_ptr<PortInsert> port_insert;
                        
            if ((plugin_insert = boost::dynamic_pointer_cast<PluginInsert> (insert)) != 0) {                      

                  GenericPluginUI *plugin_ui = new GenericPluginUI (plugin_insert, true);

                  if (place == PreFader) {
                        cleanup_pre_view();
                        _pre_plugin_conn = plugin_insert->plugin()->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), PreFader));
                        plugin_ui->start_updating (0);
                        _active_pre_view = plugin_ui;
                        pre_redir_hpane.pack2 (*_active_pre_view);
                        pre_redir_hpane.show_all();
                  }
                  else {
                        cleanup_post_view();
                        _post_plugin_conn = plugin_insert->plugin()->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), PostFader));
                        plugin_ui->start_updating (0);
                        _active_post_view = plugin_ui;
                        post_redir_hpane.pack2 (*_active_post_view);
                        post_redir_hpane.show_all();
                  }

            } else if ((port_insert = boost::dynamic_pointer_cast<PortInsert> (insert)) != 0) {

                  PortInsertUI *portinsert_ui = new PortInsertUI (*session, port_insert);
                              
                  if (place == PreFader) {
                        cleanup_pre_view();
                        _pre_plugin_conn = port_insert->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), redirect));
                        _active_pre_view = portinsert_ui;
                        pre_redir_hpane.pack2 (*_active_pre_view);
                        portinsert_ui->redisplay();
                        pre_redir_hpane.show_all();
                  }
                  else {
                        cleanup_post_view();
                        _post_plugin_conn = port_insert->GoingAway.connect (bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), redirect));
                        _active_post_view = portinsert_ui;
                        post_redir_hpane.pack2 (*_active_post_view);
                        portinsert_ui->redisplay();
                        post_redir_hpane.show_all();
                  }
            }
                        
      }

      if (place == PreFader) {
            _pre_redirect = redirect;
      } else {
            _post_redirect = redirect;
      }
      
      update_title();
            
}

void
RouteParams_UI::plugin_going_away (Placement place)
{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::plugin_going_away), place));
      
      // delete the current view without calling finish

      if (place == PreFader) {
            cleanup_pre_view (false);
            _pre_redirect.reset ((Redirect*) 0);
      }
      else {
            cleanup_post_view (false);
            _post_redirect.reset ((Redirect*) 0);
      }
}

void
RouteParams_UI::redirect_going_away (boost::shared_ptr<ARDOUR::Redirect> redirect)

{
      ENSURE_GUI_THREAD(bind (mem_fun(*this, &RouteParams_UI::redirect_going_away), redirect));
      
      printf ("redirect going away\n");
      // delete the current view without calling finish
      if (redirect == _pre_redirect) {
            cleanup_pre_view (false);
            _pre_redirect.reset ((Redirect*) 0);
      } else if (redirect == _post_redirect) {
            cleanup_post_view (false);
            _post_redirect.reset ((Redirect*) 0);
      }
}


void
RouteParams_UI::update_title ()
{
      WindowTitle title(_("Track/Bus Inspector"));

      if (_route) {

            //          title += ": ";

            //          if (_redirect && (_current_view == PLUGIN_CONFIG_VIEW || _current_view == SEND_CONFIG_VIEW)) {
            //                title += _redirect->name();
            //          }
            //          else if (_current_view == INPUT_CONFIG_VIEW) {
            //                title += _("INPUT");
            //          }
            //          else if (_current_view == OUTPUT_CONFIG_VIEW) {
            //                title += _("OUTPUT");
            //          }

            title_label.set_text(_route->name());
            
            title += _route->name();

            set_title(title.get_string());
      }
      else {
            title_label.set_text(_("No Route Selected"));
            title += _("No Route Selected");
            set_title(title.get_string());
      }     
}


void
RouteParams_UI::start_updating ()
{
      update_connection = ARDOUR_UI::instance()->RapidScreenUpdate.connect 
            (mem_fun(*this, &RouteParams_UI::update_views));
}

void
RouteParams_UI::stop_updating ()
{
      update_connection.disconnect();
}

void
RouteParams_UI::update_views ()
{
      SendUI *sui;
      // TODO: only do it if correct tab is showing
      
      if ((sui = dynamic_cast<SendUI*> (_active_pre_view)) != 0) {
            sui->update ();
      }
      if ((sui = dynamic_cast<SendUI*> (_active_post_view)) != 0) {
            sui->update ();
      }

}

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