gtk2_ardour/editor_timefx.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19 */
  20
  21 #include <cstdlib>
  22 #include <cmath>
  23
  24 #include <string>
  25
  26 #include <pbd/error.h>
  27 #include <pbd/pthread_utils.h>
  28
  29 #include "editor.h"
  30 #include "audio_time_axis.h"
  31 #include "regionview.h"
  32 #include "region_selection.h"
  33
  34 #include <ardour/session.h>
  35 #include <ardour/region.h>
  36 #include <ardour/audioplaylist.h>
  37 #include <ardour/audio_track.h>
  38 #include <ardour/audioregion.h>
  39 #include <ardour/diskstream.h>
  40
  41 #include "i18n.h"
  42
  43 using namespace ARDOUR;
  44 using namespace sigc;
  45 using namespace Gtk;
  46
  47 Editor::TimeStretchDialog::TimeStretchDialog (Editor& e)
  48         : ArdourDialog ("time stretch dialog"),
  49           editor (e),
  50           quick_button (_("Quick but Ugly")),
  51           antialias_button (_("Skip Anti-aliasing")),
  52           cancel_button (_("Cancel")),
  53           action_button (_("Stretch/Shrink it"))
  54 {
  55         set_modal (true);
  56         set_position (Gtk::WIN_POS_MOUSE);
  57         set_title (_("ardour: timestretch"));
  58         set_name (N_("TimeStretchDialog"));
  59
  60         add (packer);
  61
  62         packer.set_spacing (5);
  63         packer.set_border_width (5);
  64         packer.pack_start (upper_button_box);
  65         packer.pack_start (progress_bar);
  66         packer.pack_start (lower_button_box);
  67
  68         upper_button_box.set_homogeneous (true);
  69         upper_button_box.set_spacing (5);
  70         upper_button_box.set_border_width (5);
  71         upper_button_box.pack_start (quick_button, true, true);
  72         upper_button_box.pack_start (antialias_button, true, true);
  73
  74         lower_button_box.set_homogeneous (true);
  75         lower_button_box.set_spacing (5);
  76         lower_button_box.set_border_width (5);
  77         lower_button_box.pack_start (action_button, true, true);
  78         lower_button_box.pack_start (cancel_button, true, true);
  79
  80         action_button.set_name (N_("TimeStretchButton"));
  81         cancel_button.set_name (N_("TimeStretchButton"));
  82         quick_button.set_name (N_("TimeStretchButton"));
  83         antialias_button.set_name (N_("TimeStretchButton"));
  84         progress_bar.set_name (N_("TimeStretchProgress"));
  85
  86         // GTK2FIX
  87         // action_button.signal_clicked().connect (bind (mem_fun(*this, &ArdourDialog::stop), 1));
  88 }
  89
  90 gint
  91 Editor::TimeStretchDialog::update_progress ()
  92 {
  93         progress_bar.set_fraction (request.progress/100);
  94         return request.running;
  95 }
  96
  97 void
  98 Editor::TimeStretchDialog::cancel_timestretch_in_progress ()
  99 {
 100         status = -2;
 101         request.running = false;
 102 }
 103
 104 gint
 105 Editor::TimeStretchDialog::delete_timestretch_in_progress (GdkEventAny* ev)
 106 {
 107         status = -2;
 108         request.running = false;
 109         return TRUE;
 110 }
 111
 112 int
 113 Editor::run_timestretch (AudioRegionSelection& regions, float fraction)
 114 {
 115         pthread_t thread;
 116
 117         if (current_timestretch == 0) {
 118                 current_timestretch = new TimeStretchDialog (*this);
 119         }
 120
 121         current_timestretch->progress_bar.set_fraction (0.0f);
 122         // GTK2FIX
 123         // current_timestretch->first_cancel = current_timestretch->cancel_button.signal_clicked().connect (bind (mem_fun (*current_timestretch, &ArdourDialog::stop), -1));
 124         // current_timestretch->first_delete = current_timestretch->signal_delete_event().connect (mem_fun (*current_timestretch, &ArdourDialog::wm_close_event));
 125
 126         switch (current_timestretch->run ()) {
 127         case RESPONSE_ACCEPT:
 128                 break;
 129         default:
 130                 current_timestretch->hide ();
 131                 return 1;
 132         }
 133
 134         current_timestretch->status = 0;
 135         current_timestretch->regions = regions;
 136         current_timestretch->request.fraction = fraction;
 137         current_timestretch->request.quick_seek = current_timestretch->quick_button.get_active();
 138         current_timestretch->request.antialias = !current_timestretch->antialias_button.get_active();
 139         current_timestretch->request.progress = 0.0f;
 140         current_timestretch->request.running = true;
 141
 142         /* re-connect the cancel button and delete events */
 143
 144         current_timestretch->first_cancel.disconnect();
 145         current_timestretch->first_delete.disconnect();
 146
 147         current_timestretch->cancel_button.signal_clicked().connect (mem_fun (current_timestretch, &TimeStretchDialog::cancel_timestretch_in_progress));
 148         current_timestretch->signal_delete_event().connect (mem_fun (current_timestretch, &TimeStretchDialog::delete_timestretch_in_progress));
 149
 150         if (pthread_create_and_store ("timestretch", &thread, 0, timestretch_thread, current_timestretch)) {
 151                 // GTK2FIX
 152           //current_timestretch->close ();
 153                 error << _("timestretch cannot be started - thread creation error") << endmsg;
 154                 return -1;
 155         }
 156
 157         pthread_detach (thread);
 158
 159         sigc::connection c = Glib::signal_timeout().connect (mem_fun (current_timestretch, &TimeStretchDialog::update_progress), 100);
 160
 161         while (current_timestretch->request.running) {
 162                 gtk_main_iteration ();
 163         }
 164
 165         c.disconnect ();
 166
 167         current_timestretch->hide ();
 168         return current_timestretch->status;
 169 }
 170
 171 void
 172 Editor::do_timestretch (TimeStretchDialog& dialog)
 173 {
 174         AudioTrack* at;
 175         Playlist* playlist;
 176         AudioRegion* new_region;
 177
 178         for (AudioRegionSelection::iterator i = dialog.regions.begin(); i != dialog.regions.end(); ) {
 179
 180                 AudioRegion& aregion ((*i)->region);
 181                 TimeAxisView* tv = &(*i)->get_time_axis_view();
 182                 AudioTimeAxisView* atv;
 183                 AudioRegionSelection::iterator tmp;
 184
 185                 tmp = i;
 186                 ++tmp;
 187
 188                 if ((atv = dynamic_cast<AudioTimeAxisView*> (tv)) == 0) {
 189                         i = tmp;
 190                         continue;
 191                 }
 192
 193                 if ((at = dynamic_cast<AudioTrack*> (&atv->route())) == 0) {
 194                         i = tmp;
 195                         continue;
 196                 }
 197
 198                 if ((playlist = at->disk_stream().playlist()) == 0) {
 199                         i = tmp;
 200                         continue;
 201                 }
 202
 203                 dialog.request.region = &aregion;
 204
 205                 if (!dialog.request.running) {
 206                         /* we were cancelled */
 207                         dialog.status = 1;
 208                         return;
 209                 }
 210
 211                 if ((new_region = session->tempoize_region (dialog.request)) == 0) {
 212                         dialog.status = -1;
 213                         dialog.request.running = false;
 214                         return;
 215                 }
 216
 217                 session->add_undo (playlist->get_memento());
 218                 playlist->replace_region (aregion, *new_region, aregion.position());
 219                 session->add_redo_no_execute (playlist->get_memento());
 220
 221                 i = tmp;
 222         }
 223
 224         dialog.status = 0;
 225         dialog.request.running = false;
 226 }
 227
 228 void*
 229 Editor::timestretch_thread (void *arg)
 230 {
 231         PBD::ThreadCreated (pthread_self(), X_("TimeFX"));
 232
 233         TimeStretchDialog* tsd = static_cast<TimeStretchDialog*>(arg);
 234
 235         pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
 236
 237         tsd->editor.do_timestretch (*tsd);
 238
 239         return 0;
 240 }
 241