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