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 "pbd/filesystem.h"
  26
  27 #include "ardour/audioengine.h"
  28 #include "ardour/sndfile_helpers.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 PBD;
  38 using namespace std;
  39
  40 ExportRangeMarkersDialog::ExportRangeMarkersDialog (PublicEditor& editor)
  41         : ExportDialog(editor)
  42 {
  43         set_title (_("Export Ranges"));
  44         file_frame.set_label (_("Export to Directory"));
  45
  46         do_not_allow_export_cd_markers();
  47
  48         total_duration = 0;
  49         current_range_marker_index = 0;
  50 }
  51
  52 Gtk::FileChooserAction
  53 ExportRangeMarkersDialog::browse_action () const
  54 {
  55         return Gtk::FILE_CHOOSER_ACTION_CREATE_FOLDER;
  56 }
  57
  58 void
  59 ExportRangeMarkersDialog::export_data ()
  60 {
  61         getSession().locations()->apply(*this, &ExportRangeMarkersDialog::process_range_markers_export);
  62 }
  63
  64 void
  65 ExportRangeMarkersDialog::process_range_markers_export(Locations::LocationList& locations)
  66 {
  67         Locations::LocationList::iterator locationIter;
  68         current_range_marker_index = 0;
  69         init_progress_computing(locations);
  70
  71         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
  72                 Location *currentLocation = (*locationIter);
  73
  74                 if(currentLocation->is_range_marker()){
  75                         // init filename
  76                         string filepath = get_target_filepath(
  77                                 get_selected_file_name(),
  78                                 currentLocation->name(),
  79                                 sndfile_file_ending_from_string(get_selected_header_format()));
  80
  81                         initSpec(filepath);
  82
  83                         spec.start_frame = currentLocation->start();
  84                         spec.end_frame = currentLocation->end();
  85
  86                         if (getSession().start_export(spec)){
  87                                 // if export fails
  88                                 return;
  89                         }
  90
  91                         // wait until export of this range finished
  92                         gtk_main_iteration();
  93
  94                         while (spec.running){
  95                                 if(gtk_events_pending()){
  96                                         gtk_main_iteration();
  97                                 }else {
  98                                         usleep(10000);
  99                                 }
 100                         }
 101
 102                         current_range_marker_index++;
 103
 104                         getSession().stop_export (spec);
 105                 }
 106         }
 107
 108         spec.running = false;
 109 }
 110
 111
 112 string
 113 ExportRangeMarkersDialog::get_target_filepath(string path, string filename, string postfix)
 114 {
 115         string target_path = path;
 116         if ((target_path.find_last_of ('/')) != string::npos) {
 117                 target_path += '/';
 118         }
 119
 120         string target_filepath = target_path + filename + postfix;
 121         struct stat statbuf;
 122
 123         for(int counter=1; (stat (target_filepath.c_str(), &statbuf) == 0); counter++){
 124                 // while file exists
 125                 ostringstream scounter;
 126                 scounter.flush();
 127                 scounter << counter;
 128
 129                 target_filepath =
 130                         target_path + filename + "_" + scounter.str() + postfix;
 131         }
 132
 133         return target_filepath;
 134 }
 135
 136 bool
 137 ExportRangeMarkersDialog::is_filepath_valid(string &filepath)
 138 {
 139         // sanity check file name first
 140         struct stat statbuf;
 141
 142         if (filepath.empty()) {
 143                 // warning dialog
 144                 string txt = _("Please enter a valid target directory.");
 145                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 146                 msg.run();
 147                 return false;
 148         }
 149
 150         if ( (stat (filepath.c_str(), &statbuf) != 0) ||
 151                 (!S_ISDIR (statbuf.st_mode)) ) {
 152                 string txt = _("Please select an existing target directory. Files are not allowed!");
 153                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 154                 msg.run();
 155                 return false;
 156         }
 157
 158         // directory needs to exist and be writable
 159         string dirpath = Glib::path_get_dirname (filepath);
 160         if (!exists_and_writable (sys::path (dirpath))) {
 161                 string txt = _("Cannot write file in: ") + dirpath;
 162                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 163                 msg.run();
 164                 return false;
 165         }
 166
 167         return true;
 168 }
 169
 170 void
 171 ExportRangeMarkersDialog::init_progress_computing(Locations::LocationList& locations)
 172 {
 173         // flush vector
 174         range_markers_durations_aggregated.resize(0);
 175
 176         framecnt_t duration_before_current_location = 0;
 177         Locations::LocationList::iterator locationIter;
 178
 179         for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
 180                 Location *currentLocation = (*locationIter);
 181
 182                 if(currentLocation->is_range_marker()){
 183                         range_markers_durations_aggregated.push_back (duration_before_current_location);
 184
 185                         framecnt_t duration = currentLocation->end() - currentLocation->start();
 186
 187                         range_markers_durations.push_back (duration);
 188                         duration_before_current_location += duration;
 189                 }
 190         }
 191
 192         total_duration = duration_before_current_location;
 193 }
 194
 195
 196 gint
 197 ExportRangeMarkersDialog::progress_timeout ()
 198 {
 199         double progress = 0.0;
 200
 201         if (current_range_marker_index >= range_markers_durations.size()){
 202                 progress = 1.0;
 203         } else{
 204                 progress = ((double) range_markers_durations_aggregated[current_range_marker_index] +
 205                             (spec.progress * (double) range_markers_durations[current_range_marker_index])) /
 206                         (double) total_duration;
 207         }
 208
 209         set_progress_fraction( progress );
 210         return TRUE;
 211 }