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Viewing changes to gtk2_ardour/export_range_markers_dialog.cc

  • Committer: Package Import Robot
  • Author(s): Felipe Sateler
  • Date: 2013-09-21 19:05:02 UTC
  • Revision ID: package-import@ubuntu.com-20130921190502-8gsftrku6jnzhd7v
Tags: upstream-3.4~dfsg
Import upstream version 3.4~dfsg

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gtk2_ardour/export_range_markers_dialog.cc
 
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/*
 
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    Copyright (C) 2006 Paul Davis
 
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    Author: Andre Raue
 
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    This program is free software; you can redistribute it and/or modify
 
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    it under the terms of the GNU General Public License as published by
 
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    the Free Software Foundation; either version 2 of the License, or
 
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    (at your option) any later version.
 
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    This program is distributed in the hope that it will be useful,
 
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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    GNU General Public License for more details.
 
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    You should have received a copy of the GNU General Public License
 
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    along with this program; if not, write to the Free Software
 
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    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
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*/
 
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#include <sys/stat.h>
 
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#include <sstream>
 
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#include "ardour/audioengine.h"
 
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#include "ardour/sndfile_helpers.h"
 
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#include "ardour_ui.h"
 
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#include "export_range_markers_dialog.h"
 
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#include "i18n.h"
 
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using namespace Gtk;
 
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using namespace ARDOUR;
 
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using namespace PBD;
 
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using namespace std;
 
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ExportRangeMarkersDialog::ExportRangeMarkersDialog (PublicEditor& editor)
 
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        : ExportDialog(editor)
 
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{
 
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        set_title (_("Export Ranges"));
 
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        file_frame.set_label (_("Export to Directory"));
 
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        do_not_allow_export_cd_markers();
 
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        total_duration = 0;
 
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        current_range_marker_index = 0;
 
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}
 
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Gtk::FileChooserAction
 
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ExportRangeMarkersDialog::browse_action () const
 
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{
 
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        return Gtk::FILE_CHOOSER_ACTION_CREATE_FOLDER;
 
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}
 
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void
 
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ExportRangeMarkersDialog::export_data ()
 
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{
 
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        getSession().locations()->apply(*this, &ExportRangeMarkersDialog::process_range_markers_export);
 
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}
 
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void
 
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ExportRangeMarkersDialog::process_range_markers_export(Locations::LocationList& locations)
 
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{
 
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        Locations::LocationList::iterator locationIter;
 
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        current_range_marker_index = 0;
 
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        init_progress_computing(locations);
 
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        for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
 
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                Location *currentLocation = (*locationIter);
 
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                if(currentLocation->is_range_marker()){
 
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                        // init filename
 
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                        string filepath = get_target_filepath(
 
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                                get_selected_file_name(),
 
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                                currentLocation->name(),
 
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                                get_selected_header_format());
 
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                        initSpec(filepath);
 
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                        spec.start_frame = currentLocation->start();
 
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                        spec.end_frame = currentLocation->end();
 
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                        if (getSession().start_export(spec)){
 
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                                // if export fails
 
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                                return;
 
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                        }
 
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                        // wait until export of this range finished
 
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                        gtk_main_iteration();
 
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                        while (spec.running){
 
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                                if(gtk_events_pending()){
 
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                                        gtk_main_iteration();
 
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                                }else {
 
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                                        usleep(10000);
 
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                                }
 
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                        }
 
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                        current_range_marker_index++;
 
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                        getSession().stop_export (spec);
 
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                }
 
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        }
 
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        spec.running = false;
 
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}
 
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string
 
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ExportRangeMarkersDialog::get_target_filepath(string path, string filename, string postfix)
 
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{
 
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        string target_path = path;
 
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        if ((target_path.find_last_of ('/')) != string::npos) {
 
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                target_path += '/';
 
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        }
 
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        string target_filepath = target_path + filename + postfix;
 
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        struct stat statbuf;
 
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        for(int counter=1; (stat (target_filepath.c_str(), &statbuf) == 0); counter++){
 
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                // while file exists
 
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                ostringstream scounter;
 
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                scounter.flush();
 
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                scounter << counter;
 
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                target_filepath =
 
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                        target_path + filename + "_" + scounter.str() + postfix;
 
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        }
 
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        return target_filepath;
 
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}
 
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bool
 
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ExportRangeMarkersDialog::is_filepath_valid(string &filepath)
 
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{
 
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        // sanity check file name first
 
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        struct stat statbuf;
 
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        if (filepath.empty()) {
 
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                // warning dialog
 
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                string txt = _("Please enter a valid target directory.");
 
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                MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 
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                msg.run();
 
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                return false;
 
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        }
 
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        if ( (stat (filepath.c_str(), &statbuf) != 0) ||
 
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                (!S_ISDIR (statbuf.st_mode)) ) {
 
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                string txt = _("Please select an existing target directory. Files are not allowed!");
 
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                MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 
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                msg.run();
 
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                return false;
 
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        }
 
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        // directory needs to exist and be writable
 
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        string dirpath = Glib::path_get_dirname (filepath);
 
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        if (!exists_and_writable (dirpath)) {
 
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                string txt = _("Cannot write file in: ") + dirpath;
 
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                MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
 
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                msg.run();
 
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                return false;
 
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        }
 
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        return true;
 
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}
 
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void
 
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ExportRangeMarkersDialog::init_progress_computing(Locations::LocationList& locations)
 
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{
 
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        // flush vector
 
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        range_markers_durations_aggregated.resize(0);
 
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174
        framecnt_t duration_before_current_location = 0;
 
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        Locations::LocationList::iterator locationIter;
 
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        for (locationIter = locations.begin(); locationIter != locations.end(); ++locationIter) {
 
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                Location *currentLocation = (*locationIter);
 
179
 
 
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                if(currentLocation->is_range_marker()){
 
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                        range_markers_durations_aggregated.push_back (duration_before_current_location);
 
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                        framecnt_t duration = currentLocation->end() - currentLocation->start();
 
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                        range_markers_durations.push_back (duration);
 
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                        duration_before_current_location += duration;
 
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                }
 
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        }
 
189
 
 
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        total_duration = duration_before_current_location;
 
191
}
 
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194
gint
 
195
ExportRangeMarkersDialog::progress_timeout ()
 
196
{
 
197
        double progress = 0.0;
 
198
 
 
199
        if (current_range_marker_index >= range_markers_durations.size()){
 
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                progress = 1.0;
 
201
        } else{
 
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                progress = ((double) range_markers_durations_aggregated[current_range_marker_index] +
 
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                            (spec.progress * (double) range_markers_durations[current_range_marker_index])) /
 
204
                        (double) total_duration;
 
205
        }
 
206
 
 
207
        set_progress_fraction( progress );
 
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        return TRUE;
 
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}