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