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