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 <pbd/dirname.h>
  29
  30 #include "ardour_ui.h"
  31 #include "export_range_markers_dialog.h"
  32
  33 #include "i18n.h"
  34
  35 using namespace Gtk;
  36 using namespace ARDOUR;
  37 using namespace std;
  38
  39 ExportRangeMarkersDialog::ExportRangeMarkersDialog (PublicEditor& editor)
  40         : ExportDialog(editor)
  41 {
  42         do_not_allow_export_cd_markers();
  43
  44         total_duration = 0;
  45         current_range_marker_index = 0;
  46 }
  47
  48
  49 void
  50 ExportRangeMarkersDialog::export_audio_data ()
  51 {
  52         getSession().locations()->apply(*this, &ExportRangeMarkersDialog::process_range_markers_export);
  53 }
  54
  55 void
  56 ExportRangeMarkersDialog::process_range_markers_export(Locations::LocationList& locations)
  57 {
  58         Locations::LocationList::iterator locationIter;
  59         current_range_marker_index = 0;
  60         init_progress_computing(locations);
  61
  62         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
  63                 Location *currentLocation = (*locationIter);
  64
  65                 if(currentLocation->is_range_marker()){
  66                         // init filename
  67                         string filepath = get_target_filepath(
  68                                 get_selected_file_name(),
  69                                 currentLocation->name(),
  70                                 sndfile_file_ending_from_string(get_selected_header_format()));
  71
  72                         initSpec(filepath);
  73
  74                         spec.start_frame = currentLocation->start();
  75                         spec.end_frame = currentLocation->end();
  76
  77                         getSession().request_locate(spec.start_frame, false);
  78
  79                         if (getSession().start_audio_export(spec)){
  80                                 // if export fails
  81                                 return;
  82                         }
  83
  84                         // wait until export of this range finished
  85                         gtk_main_iteration();
  86                         while(spec.running){
  87                                 if(gtk_events_pending()){
  88                                         gtk_main_iteration();
  89                                 }else {
  90                                         usleep(10000);
  91                                 }
  92                         }
  93
  94                         getSession().engine().freewheel (false);
  95                         current_range_marker_index++;
  96                 }
  97         }
  98
  99         spec.running = false;
 100 }
 101
 102
 103 string
 104 ExportRangeMarkersDialog::get_target_filepath(string path, string filename, string postfix)
 105 {
 106         string target_path = path;
 107         if ((target_path.find_last_of ('/')) != string::npos) {
 108                 target_path += '/';
 109         }
 110
 111         string target_filepath = target_path + filename + postfix;
 112         struct stat statbuf;
 113
 114         for(int counter=1; (stat (target_filepath.c_str(), &statbuf) == 0); counter++){
 115                 // while file exists
 116                 ostringstream scounter;
 117                 scounter.flush();
 118                 scounter << counter;
 119
 120                 target_filepath =
 121                         target_path + filename + "_" + scounter.str() + postfix;
 122         }
 123
 124         return target_filepath;
 125 }
 126
 127
 128 bool
 129 ExportRangeMarkersDialog::is_filepath_valid(string &filepath)
 130 {
 131         // sanity check file name first
 132         struct stat statbuf;
 133
 134         if (filepath.empty()) {
 135                 // warning dialog
 136                 string txt = _("Please enter a valid target directory.");
 137                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 138                 msg.run();
 139                 return false;
 140         }
 141
 142         if ( (stat (filepath.c_str(), &statbuf) != 0) ||
 143                 (!S_ISDIR (statbuf.st_mode)) ) {
 144                         string txt = _("Please select an existing target directory. Files\n"
 145                                 "are not allowed!");
 146                         MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 147                         msg.run();
 148                         return false;
 149         }
 150
 151         // directory needs to exist and be writable
 152         string dirpath = PBD::dirname (filepath);
 153         if (::access (dirpath.c_str(), W_OK) != 0) {
 154                 string txt = _("Cannot write file in: ") + dirpath;
 155                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 156                 msg.run();
 157                 return false;
 158         }
 159
 160         return true;
 161 }
 162
 163
 164 void
 165 ExportRangeMarkersDialog::init_progress_computing(Locations::LocationList& locations)
 166 {
 167         // flush vector
 168         range_markers_durations_aggregated.resize(0);
 169
 170         jack_nframes_t duration_before_current_location = 0;
 171         Locations::LocationList::iterator locationIter;
 172
 173         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
 174                 Location *currentLocation = (*locationIter);
 175
 176                 if(currentLocation->is_range_marker()){
 177                         range_markers_durations_aggregated.push_back(
 178                                 duration_before_current_location);
 179
 180                         jack_nframes_t duration =
 181                                 currentLocation->end() - currentLocation->start();
 182
 183                         range_markers_durations.push_back(duration);
 184                         duration_before_current_location += duration;
 185                 }
 186         }
 187
 188         total_duration = duration_before_current_location;
 189 }
 190
 191
 192 gint
 193 ExportRangeMarkersDialog::progress_timeout ()
 194 {
 195         double progress = 0.0;
 196
 197         if(current_range_marker_index >= range_markers_durations.size()){
 198                 progress = 1.0;
 199         }
 200         else{
 201                 progress =
 202                         ((double) range_markers_durations_aggregated[current_range_marker_index] +
 203                         (spec.progress * (double) range_markers_durations[current_range_marker_index])) /
 204                         (double) total_duration;
 205         }
 206
 207         set_progress_fraction( progress );
 208         return TRUE;
 209 }