/*
Converts generalized time to UNIX GMT time. For example:
"20060807211257Z" -> 1154981577
*/
time_t
gentimeToEpochtime( char *gentimestr ) {
time_t epochtime, cur_local_epochtime, cur_gm_epochtime, zone_offset;
struct tm t, *cur_gm_time;
/* Find the local offset from GMT */
cur_gm_time = (struct tm*)slapi_ch_calloc( 1, sizeof( struct tm ) );
cur_local_epochtime = time( (time_t *)0 );
gmtime_r( &cur_local_epochtime, cur_gm_time );
cur_gm_epochtime = mktime( cur_gm_time );
free( cur_gm_time );
zone_offset = cur_gm_epochtime - cur_local_epochtime;
/* Parse generalizedtime string into a tm struct */
t.tm_year = antoi( gentimestr, 0, 4 ) - 1900;
t.tm_mon = antoi( gentimestr, 4, 2 ) - 1;
t.tm_mday = antoi( gentimestr, 6, 2 );
t.tm_hour = antoi( gentimestr, 8, 2 );
t.tm_min = antoi( gentimestr, 10, 2 );
t.tm_sec = antoi( gentimestr, 12, 2 );
t.tm_isdst = 0; /* DST does not apply to UTC */
/* Turn tm object into local epoch time */
epochtime = mktime( &t );
/* Turn local epoch time into GMT epoch time */
epochtime -= zone_offset;
return( epochtime );
}
void UI_headerEditorWindow::open_file()
{
long long filesize;
if(file != NULL)
{
fclose(file);
file = NULL;
}
edf = 0;
bdf = 0;
edfplus = 0;
bdfplus = 0;
edfsignals = 0;
disconnect(lineEdit3, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_name(const QString &)));
disconnect(lineEdit4, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_name(const QString &)));
disconnect(lineEdit5, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_name(const QString &)));
disconnect(lineEdit6, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_recording(const QString &)));
disconnect(lineEdit7, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_recording(const QString &)));
disconnect(lineEdit8, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_recording(const QString &)));
disconnect(lineEdit9, SIGNAL(textEdited(const QString &)), this, SLOT(calculate_chars_left_recording(const QString &)));
lineEdit3->setMaxLength(80);
lineEdit4->setMaxLength(80);
lineEdit5->setMaxLength(80);
lineEdit6->setMaxLength(80);
lineEdit7->setMaxLength(80);
lineEdit8->setMaxLength(80);
lineEdit9->setMaxLength(80);
lineEdit1->clear();
lineEdit2->clear();
lineEdit3->clear();
lineEdit4->clear();
lineEdit5->clear();
lineEdit6->clear();
lineEdit7->clear();
lineEdit8->clear();
lineEdit9->clear();
signallist->setRowCount(0);
fileNameLabel->clear();
if(hdr==NULL)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "A memory allocation error occurred. (hdr)");
messagewindow.exec();
return;
}
strcpy(path, QFileDialog::getOpenFileName(0, "Open file", QString::fromLocal8Bit(mainwindow->recent_opendir), "EDF/BDF files (*.edf *.EDF *.bdf *.BDF)").toLocal8Bit().data());
if(!strcmp(path, ""))
{
return;
}
get_directory_from_path(mainwindow->recent_opendir, path, MAX_PATH_LENGTH);
if(mainwindow->file_is_opened(path))
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Selected file is in use.");
messagewindow.exec();
return;
}
file = fopeno(path, "r+b");
if(file==NULL)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Can not open file.");
messagewindow.exec();
return;
}
rewind(file);
if(fread(hdr, 256, 1, file) != 1)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Can not read from file.");
messagewindow.exec();
fclose(file);
file = NULL;
return;
}
if(!(strncmp(hdr, "0 ", 8))) edf = 1;
if((!(strncmp(hdr + 1, "BIOSEMI", 7))) && (((unsigned char *)hdr)[0] == 255))
{
bdf = 1;
}
if((!edf) && (!bdf))
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "File is not a valid EDF or BDF file.\n"
"Invalid version.");
messagewindow.exec();
fclose(file);
file = NULL;
return;
}
edfsignals = antoi(hdr + 252, 4);
if(edfsignals < 1)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Invalid number of signals in header (less than 1)");
messagewindow.exec();
fclose(file);
file = NULL;
return;
}
if(edfsignals > 2049)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Number of signals in header is more than 2048.\n"
"This tool can not process more than 2048 signals.");
messagewindow.exec();
fclose(file);
file = NULL;
return;
}
fseeko(file, 0LL, SEEK_END);
filesize = ftello(file);
if(filesize < (((edfsignals + 1LL) * 256LL) + edfsignals))
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Filesize is too small.\n"
"Can not fix this file.");
messagewindow.exec();
fclose(file);
file = NULL;
return;
}
if((!(strncmp(hdr + 192, "EDF+C", 5))) || (!(strncmp(hdr + 192, "EDF+D", 5))))
{
edfplus = 1;
}
if((!(strncmp(hdr + 192, "BDF+C", 5))) || (!(strncmp(hdr + 192, "BDF+D", 5))))
{
bdfplus = 1;
}
read_header();
}
