Remove unnecessary 0 checks before delete; see http://www.parashift.com/c++-faq-lite...
[ardour.git] / gtk2_ardour / editor_mixer.cc
index 246dbdc6473337501d943c82165bf8c175b27cdd..7f6031ed92fa6fabb8444f0c55a2bf1af24f15d2 100644 (file)
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
+#include <glibmm/miscutils.h>
 #include <gtkmm2ext/utils.h>
+#include <gtkmm2ext/window_title.h>
+
+#include <pbd/enumwriter.h>
+
 #include <ardour/audioengine.h>
 
 #include "editor.h"
@@ -30,6 +34,9 @@
 
 #include "i18n.h"
 
+using namespace Gtkmm2ext;
+using namespace PBD;
+
 void
 Editor::editor_mixer_button_toggled ()
 {
@@ -40,6 +47,16 @@ Editor::editor_mixer_button_toggled ()
        }
 }
 
+void
+Editor::editor_list_button_toggled ()
+{
+       Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
+       if (act) {
+               Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
+               show_editor_list (tact->get_active());
+       }
+}
+
 void
 Editor::cms_deleted ()
 {
@@ -49,125 +66,193 @@ Editor::cms_deleted ()
 void
 Editor::show_editor_mixer (bool yn)
 {
+       boost::shared_ptr<ARDOUR::Route> r;
+
+       show_editor_mixer_when_tracks_arrive = false;
+
+       if (!session) {
+               show_editor_mixer_when_tracks_arrive = yn;
+               return;
+       }
+
        if (yn) {
 
-               if (current_mixer_strip == 0) {
+               if (selection->tracks.empty()) {
+                       
+                       if (track_views.empty()) {      
+                               show_editor_mixer_when_tracks_arrive = true;
+                               return;
+                       } 
 
-                       if (selection->tracks.empty()) {
+                       for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
+                               AudioTimeAxisView* atv;
                                
-                               if (track_views.empty()) {
-                                       return;
+                               if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
+                                       r = atv->route();
+                                       break;
                                }
-                               
-                               for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
-                                       AudioTimeAxisView* atv;
+                       }
 
-                                       if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
-                                               
-                                               current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
-                                                                                     *session,
-                                                                                     atv->route(), false);
+               } else {
 
-                                               current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));                                          
-                                               break;
-                                       }
+                       sort_track_selection ();
+                       
+                       for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
+                               AudioTimeAxisView* atv;
+                               
+                               if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
+                                       r = atv->route();
+                                       break;
                                }
+                       }
+               }
 
-                       } else {
-                               for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
-                                       AudioTimeAxisView* atv;
+               if (r) {
+                       bool created;
 
-                                       if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
+                       if (current_mixer_strip == 0) {
+                               create_editor_mixer ();
+                               created = true;
+                       } else {
+                               created = false;
+                       }
 
-                                               current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
-                                                                                     *session,
-                                                                                     atv->route(), false);
-                                               current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));                                          
-                                               break;
-                                       }
-                               }
+                       current_mixer_strip->set_route (r);
 
+                       if (created) {
+                               current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
                        }
-
-                       if (current_mixer_strip == 0) {
-                               return;
-                       }               
                }
                
                if (current_mixer_strip->get_parent() == 0) {
-                       current_mixer_strip->set_embedded (true);
-                       current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
-                       current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
-                       current_mixer_strip->set_width (editor_mixer_strip_width);
-                       
                        global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
                        global_hpacker.reorder_child (*current_mixer_strip, 0);
-
                        current_mixer_strip->show_all ();
                }
 
        } else {
 
                if (current_mixer_strip) {
-                       editor_mixer_strip_width = current_mixer_strip->get_width ();
                        if (current_mixer_strip->get_parent() != 0) {
                                global_hpacker.remove (*current_mixer_strip);
                        }
                }
        }
+
+#ifdef GTKOSX
+       /* XXX gtk problem here */
+       ensure_all_elements_drawn();
+#endif
 }
 
+#ifdef GTKOSX
+void
+Editor::ensure_all_elements_drawn ()
+{
+       controls_layout.queue_draw ();
+       ruler_label_event_box.queue_draw ();
+       time_button_event_box.queue_draw ();
+}
+#endif
+
+void
+Editor::show_editor_list (bool yn)
+{
+       if (yn) {
+               the_notebook.show();
+       } else {
+               the_notebook.hide();
+       }
+}
+
+void
+Editor::create_editor_mixer ()
+{
+       current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
+                                             *session,
+                                             false);
+       current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
+       current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
+#ifdef GTKOSX
+       current_mixer_strip->WidthChanged.connect (mem_fun(*this, &Editor::ensure_all_elements_drawn));
+#endif
+       current_mixer_strip->set_embedded (true);
+}      
+
 void
 Editor::set_selected_mixer_strip (TimeAxisView& view)
 {
        AudioTimeAxisView* at;
        bool show = false;
+       bool created;
 
        if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
                return;
        }
-       
-       if (current_mixer_strip) {
 
-               /* might be nothing to do */
-
-               if (current_mixer_strip->route() == at->route()) {
+       Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
+       if (act) {
+               Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
+               if (!tact || !tact->get_active()) {
+                       /* not showing mixer strip presently */
                        return;
                }
+       }
 
-               if (current_mixer_strip->get_parent()) {
-                       show = true;
-               }
-               delete current_mixer_strip;
-               current_mixer_strip = 0;
+       if (current_mixer_strip == 0) {
+               create_editor_mixer ();
+               created = true;
+       } else {
+               created = false;
        }
 
-       current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
-                                             *session,
-                                             at->route());
-       current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
+       /* might be nothing to do */
        
+       if (current_mixer_strip->route() == at->route()) {
+               return;
+       }
+       
+       if (current_mixer_strip->get_parent()) {
+               show = true;
+       }
+
+       current_mixer_strip->set_route (at->route());
+
+       if (created) {
+               current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
+       }
+
        if (show) {
                show_editor_mixer (true);
        }
 }
 
+double current = 0.0;
+
 void
 Editor::update_current_screen ()
 {
-       if (session && engine.running()) {
+       if (session && session->engine().running()) {
 
-               jack_nframes_t frame;
+               nframes64_t frame;
 
                frame = session->audible_frame();
 
+               if (_dragging_playhead) {
+                       goto almost_done;
+               }
+
                /* only update if the playhead is on screen or we are following it */
 
-               if (_follow_playhead) {
+               if (_follow_playhead && session->requested_return_frame() < 0) {
+
+                       //playhead_cursor->canvas_item.show();
 
-                 playhead_cursor->canvas_item.show();
                        if (frame != last_update_frame) {
 
+
+#undef CONTINUOUS_SCROLL
+#ifndef  CONTINUOUS_SCROLL
                                if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
                                        
                                        if (session->transport_speed() < 0) {
@@ -182,21 +267,41 @@ Editor::update_current_screen ()
                                }
 
                                playhead_cursor->set_position (frame);
+
+#else  // CONTINUOUS_SCROLL
+                               
+                               /* don't do continuous scroll till the new position is in the rightmost quarter of the 
+                                  editor canvas
+                               */
+                               
+                               if (session->transport_speed()) {
+                                       double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
+                                       if (target <= 0.0) target = 0.0;
+                                       if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
+                                               target = (target * 0.15) + (current * 0.85);
+                                       } else {
+                                               /* relax */
+                                       }
+                                       //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
+                                       current = target;
+                                       horizontal_adjustment.set_value ( current );
+                               }
+                               
+                               playhead_cursor->set_position (frame);
+
+#endif // CONTINUOUS_SCROLL
+
                        }
 
                } else {
                        
                        if (frame != last_update_frame) {
-                               if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
-                                       playhead_cursor->canvas_item.hide();
-                               } else {
-                                       playhead_cursor->set_position (frame);
-                               }
+                               playhead_cursor->set_position (frame);
                        }
                }
 
+         almost_done:
                last_update_frame = frame;
-
                if (current_mixer_strip) {
                        current_mixer_strip->fast_update ();
                }
@@ -208,7 +313,7 @@ void
 Editor::current_mixer_strip_removed ()
 {
        if (current_mixer_strip) {
-               /* it is being deleted */
+               /* it is being deleted elsewhere */
                current_mixer_strip = 0;
        }
 }
@@ -238,6 +343,8 @@ Editor::current_mixer_strip_hidden ()
 void
 Editor::session_going_away ()
 {
+       _have_idled = false;
+       
        for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
                (*i).disconnect ();
        }
@@ -247,16 +354,15 @@ Editor::session_going_away ()
        cut_buffer->clear ();
 
        clicked_regionview = 0;
-       clicked_trackview = 0;
-       clicked_audio_trackview = 0;
+       clicked_axisview = 0;
+       clicked_routeview = 0;
        clicked_crossfadeview = 0;
        entered_regionview = 0;
        entered_track = 0;
-       latest_regionview = 0;
        last_update_frame = 0;
        drag_info.item = 0;
-       last_audition_region = 0;
-       last_canvas_frame = 0;
+
+       playhead_cursor->canvas_item.hide ();
 
        /* hide all tracks */
 
@@ -264,29 +370,38 @@ Editor::session_going_away ()
 
        /* rip everything out of the list displays */
 
-       region_list_clear (); // no clear() method in gtkmm 1.2 
+       region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
+       route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
+       named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
+       edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
+
+       region_list_model->clear ();
        route_display_model->clear ();
        named_selection_model->clear ();
        group_model->clear ();
 
-       edit_cursor_clock.set_session (0);
+       region_list_display.set_model (region_list_model);
+       route_list_display.set_model (route_display_model);
+       named_selection_display.set_model (named_selection_model);
+       edit_group_display.set_model (group_model);
+
+       edit_point_clock_connection_a.disconnect();
+       edit_point_clock_connection_b.disconnect();
+
+       edit_point_clock.set_session (0);
        zoom_range_clock.set_session (0);
        nudge_clock.set_session (0);
 
-       /* put editor/mixer toggle button in off position and disable until a new session is loaded */
-
-       editor_mixer_button.set_active(false);
-       editor_mixer_button.set_sensitive(false);
+       editor_list_button.set_active(false);
+       editor_list_button.set_sensitive(false);
+       
        /* clear tempo/meter rulers */
-
        remove_metric_marks ();
        hide_measures ();
        clear_marker_display ();
 
-       if (current_bbt_points) {
-               delete current_bbt_points;
-               current_bbt_points = 0;
-       }
+       delete current_bbt_points;
+       current_bbt_points = 0;
 
        /* mixer strip will be deleted all by itself 
           when its route is deleted.
@@ -294,7 +409,19 @@ Editor::session_going_away ()
 
        current_mixer_strip = 0;
 
-       set_title (_("ardour: editor"));
+       WindowTitle title(Glib::get_application_name());
+       title += _("Editor");
+
+       set_title (title.get_string());
 
        session = 0;
 }
+
+void
+Editor::maybe_add_mixer_strip_width (XMLNode& node)
+{
+       if (current_mixer_strip) {
+               node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width()));
+       }
+}
+