gtk2_ardour/export_range_markers_dialog.cc

   1 /*
   2     Copyright (C) 2006 Paul Davis
   3     Author: Andre Raue
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20
  21 #include <sys/stat.h>
  22
  23 #include <sstream>
  24
  25 #include <ardour/audioengine.h>
  26 #include <ardour/sndfile_helpers.h>
  27
  28 #include "ardour_ui.h"
  29 #include "export_range_markers_dialog.h"
  30
  31 #include "i18n.h"
  32
  33 using namespace Gtk;
  34 using namespace ARDOUR;
  35 using namespace PBD;
  36 using namespace std;
  37
  38 ExportRangeMarkersDialog::ExportRangeMarkersDialog (PublicEditor& editor)
  39         : ExportDialog(editor)
  40 {
  41         do_not_allow_export_cd_markers();
  42
  43         total_duration = 0;
  44         current_range_marker_index = 0;
  45 }
  46
  47
  48 void
  49 ExportRangeMarkersDialog::export_audio_data ()
  50 {
  51         getSession().locations()->apply(*this, &ExportRangeMarkersDialog::process_range_markers_export);
  52 }
  53
  54 void
  55 ExportRangeMarkersDialog::process_range_markers_export(Locations::LocationList& locations)
  56 {
  57         Locations::LocationList::iterator locationIter;
  58         current_range_marker_index = 0;
  59         init_progress_computing(locations);
  60
  61         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
  62                 Location *currentLocation = (*locationIter);
  63
  64                 if(currentLocation->is_range_marker()){
  65                         // init filename
  66                         string filepath = get_target_filepath(
  67                                 get_selected_file_name(),
  68                                 currentLocation->name(),
  69                                 sndfile_file_ending_from_string(get_selected_header_format()));
  70
  71                         initSpec(filepath);
  72
  73                         spec.start_frame = currentLocation->start();
  74                         spec.end_frame = currentLocation->end();
  75
  76                         getSession().request_locate(spec.start_frame, false);
  77
  78                         if (getSession().start_audio_export(spec)){
  79                                 // if export fails
  80                                 return;
  81                         }
  82
  83                         // wait until export of this range finished
  84                         gtk_main_iteration();
  85                         while(spec.running){
  86                                 if(gtk_events_pending()){
  87                                         gtk_main_iteration();
  88                                 }else {
  89                                         usleep(10000);
  90                                 }
  91                         }
  92
  93                         getSession().engine().freewheel (false);
  94                         current_range_marker_index++;
  95                 }
  96         }
  97
  98         spec.running = false;
  99 }
 100
 101
 102 string
 103 ExportRangeMarkersDialog::get_target_filepath(string path, string filename, string postfix)
 104 {
 105         string target_path = path;
 106         if ((target_path.find_last_of ('/')) != string::npos) {
 107                 target_path += '/';
 108         }
 109
 110         string target_filepath = target_path + filename + postfix;
 111         struct stat statbuf;
 112
 113         for(int counter=1; (stat (target_filepath.c_str(), &statbuf) == 0); counter++){
 114                 // while file exists
 115                 ostringstream scounter;
 116                 scounter.flush();
 117                 scounter << counter;
 118
 119                 target_filepath =
 120                         target_path + filename + "_" + scounter.str() + postfix;
 121         }
 122
 123         return target_filepath;
 124 }
 125
 126
 127 bool
 128 ExportRangeMarkersDialog::is_filepath_valid(string &filepath)
 129 {
 130         // sanity check file name first
 131         struct stat statbuf;
 132
 133         if (filepath.empty()) {
 134                 // warning dialog
 135                 string txt = _("Please enter a valid target directory.");
 136                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 137                 msg.run();
 138                 return false;
 139         }
 140
 141         if ( (stat (filepath.c_str(), &statbuf) != 0) ||
 142                 (!S_ISDIR (statbuf.st_mode)) ) {
 143                         string txt = _("Please select an existing target directory. Files\n"
 144                                 "are not allowed!");
 145                         MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 146                         msg.run();
 147                         return false;
 148         }
 149
 150         // directory needs to exist and be writable
 151         string dirpath = Glib::path_get_dirname (filepath);
 152         if (::access (dirpath.c_str(), W_OK) != 0) {
 153                 string txt = _("Cannot write file in: ") + dirpath;
 154                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 155                 msg.run();
 156                 return false;
 157         }
 158
 159         return true;
 160 }
 161
 162
 163 void
 164 ExportRangeMarkersDialog::init_progress_computing(Locations::LocationList& locations)
 165 {
 166         // flush vector
 167         range_markers_durations_aggregated.resize(0);
 168
 169         nframes_t duration_before_current_location = 0;
 170         Locations::LocationList::iterator locationIter;
 171
 172         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
 173                 Location *currentLocation = (*locationIter);
 174
 175                 if(currentLocation->is_range_marker()){
 176                         range_markers_durations_aggregated.push_back(
 177                                 duration_before_current_location);
 178
 179                         nframes_t duration =
 180                                 currentLocation->end() - currentLocation->start();
 181
 182                         range_markers_durations.push_back(duration);
 183                         duration_before_current_location += duration;
 184                 }
 185         }
 186
 187         total_duration = duration_before_current_location;
 188 }
 189
 190
 191 gint
 192 ExportRangeMarkersDialog::progress_timeout ()
 193 {
 194         double progress = 0.0;
 195
 196         if(current_range_marker_index >= range_markers_durations.size()){
 197                 progress = 1.0;
 198         }
 199         else{
 200                 progress =
 201                         ((double) range_markers_durations_aggregated[current_range_marker_index] +
 202                         (spec.progress * (double) range_markers_durations[current_range_marker_index])) /
 203                         (double) total_duration;
 204         }
 205
 206         set_progress_fraction( progress );
 207         return TRUE;
 208 }