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ascii2edf.cpp
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ascii2edf.cpp
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#include "ascii2edf.h"
UI_ASCII2EDFapp::UI_ASCII2EDFapp(char *recent_dir, char *save_dir)
{
recent_opendir = recent_dir;
recent_savedir = save_dir;
autoPhysicalMaximum = 1;
edf_format = 1;
ascii2edfDialog = new QDialog;
ascii2edfDialog->setMinimumSize(600, 520);
ascii2edfDialog->setMaximumSize(600, 520);
ascii2edfDialog->setWindowTitle("ASCII to EDF/BDF converter");
ascii2edfDialog->setModal(true);
ascii2edfDialog->setAttribute(Qt::WA_DeleteOnClose, true);
SeparatorLabel = new QLabel(ascii2edfDialog);
SeparatorLabel->setGeometry(20, 20, 140, 25);
SeparatorLabel->setText("Column separator");
NumsignalsLabel = new QLabel(ascii2edfDialog);
NumsignalsLabel->setGeometry(20, 55, 140, 25);
NumsignalsLabel->setText("Number of columns");
DatastartLabel = new QLabel(ascii2edfDialog);
DatastartLabel->setGeometry(20, 90, 140, 25);
DatastartLabel->setText("Data starts at line");
SamplefreqLabel = new QLabel(ascii2edfDialog);
SamplefreqLabel->setGeometry(20, 125, 140, 25);
SamplefreqLabel->setText("Samplefrequency");
PatientnameLabel = new QLabel(ascii2edfDialog);
PatientnameLabel->setGeometry(20, 160, 140, 25);
PatientnameLabel->setText("Subject name");
RecordingLabel = new QLabel(ascii2edfDialog);
RecordingLabel->setGeometry(20, 195, 140, 25);
RecordingLabel->setText("Recording");
DatetimeLabel = new QLabel(ascii2edfDialog);
DatetimeLabel->setGeometry(20, 230, 140, 25);
DatetimeLabel->setText("Startdate and time");
autoPhysicalMaximumLabel = new QLabel(ascii2edfDialog);
autoPhysicalMaximumLabel->setGeometry(360, 265, 180, 25);
autoPhysicalMaximumLabel->setText("Auto detect physical maximum");
SignalsLabel = new QLabel(ascii2edfDialog);
SignalsLabel->setGeometry(20, 300, 140, 25);
SignalsLabel->setText("Signals");
groupbox1 = new QGroupBox(ascii2edfDialog);
groupbox1->setGeometry(330, 20, 160, 90);
groupbox1->setTitle("Output format");
edfButton = new QRadioButton("EDF (16-bit)");
bdfButton = new QRadioButton("BDF (24-bit)");
edfButton->setChecked(true);
vbox1 = new QVBoxLayout;
vbox1->addWidget(edfButton);
vbox1->addStretch(1);
vbox1->addWidget(bdfButton);
vbox1->addStretch(1);
groupbox1->setLayout(vbox1);
SeparatorLineEdit = new QLineEdit(ascii2edfDialog);
SeparatorLineEdit->setGeometry(160, 20, 30, 25);
SeparatorLineEdit->setMaxLength(3);
SeparatorLineEdit->setText("tab");
NumcolumnsSpinbox = new QSpinBox(ascii2edfDialog);
NumcolumnsSpinbox->setGeometry(160, 55, 70, 25);
NumcolumnsSpinbox->setRange(1,256);
NumcolumnsSpinbox->setValue(1);
DatastartSpinbox = new QSpinBox(ascii2edfDialog);
DatastartSpinbox->setGeometry(160, 90, 70, 25);
DatastartSpinbox->setRange(1,100);
DatastartSpinbox->setValue(1);
SamplefreqSpinbox = new QDoubleSpinBox(ascii2edfDialog);
SamplefreqSpinbox->setGeometry(160, 125, 140, 25);
SamplefreqSpinbox->setDecimals(7);
SamplefreqSpinbox->setRange(0.0000001,1000000.0);
SamplefreqSpinbox->setSuffix(" Hz");
SamplefreqSpinbox->setValue(1.0);
PatientnameLineEdit = new QLineEdit(ascii2edfDialog);
PatientnameLineEdit->setGeometry(160, 160, 420, 25);
PatientnameLineEdit->setMaxLength(80);
RecordingLineEdit = new QLineEdit(ascii2edfDialog);
RecordingLineEdit->setGeometry(160, 195, 420, 25);
RecordingLineEdit->setMaxLength(80);
StartDatetimeedit = new QDateTimeEdit(ascii2edfDialog);
StartDatetimeedit->setGeometry(160, 230, 140, 25);
StartDatetimeedit->setDisplayFormat("dd/MM/yyyy hh:mm:ss");
StartDatetimeedit->setDateTime(QDateTime::currentDateTime());
autoPhysicalMaximumCheckbox = new QCheckBox(ascii2edfDialog);
autoPhysicalMaximumCheckbox->setGeometry(560, 265, 20, 25);
autoPhysicalMaximumCheckbox->setTristate(false);
autoPhysicalMaximumCheckbox->setCheckState(Qt::Checked);
SignalsTablewidget = new QTableWidget(ascii2edfDialog);
SignalsTablewidget->setGeometry(160, 300, 420, 140);
SignalsTablewidget->setSelectionMode(QAbstractItemView::NoSelection);
SignalsTablewidget->setColumnCount(5);
SignalsTablewidget->setColumnWidth(0, 20);
SignalsTablewidget->setColumnWidth(1, 120);
SignalsTablewidget->setColumnWidth(2, 120);
SignalsTablewidget->setColumnWidth(3, 120);
SignalsTablewidget->setColumnWidth(4, 120);
SignalsTablewidget->setRowCount(1);
SignalsTablewidget->setRowHeight(0, 25);
SignalsTablewidget->setCellWidget(0, 0, new QCheckBox);
((QCheckBox *)SignalsTablewidget->cellWidget(0, 0))->setCheckState(Qt::Checked);
SignalsTablewidget->setCellWidget(0, 1, new QLineEdit);
((QLineEdit *)SignalsTablewidget->cellWidget(0, 1))->setMaxLength(16);
SignalsTablewidget->setCellWidget(0, 2, new QLineEdit);
((QLineEdit *)SignalsTablewidget->cellWidget(0, 2))->setMaxLength(7);
((QLineEdit *)SignalsTablewidget->cellWidget(0, 2))->setEnabled(false);
SignalsTablewidget->setCellWidget(0, 3, new QLineEdit);
((QLineEdit *)SignalsTablewidget->cellWidget(0, 3))->setMaxLength(8);
SignalsTablewidget->setCellWidget(0, 4, new QDoubleSpinBox);
((QDoubleSpinBox *)SignalsTablewidget->cellWidget(0, 4))->setDecimals(4);
((QDoubleSpinBox *)SignalsTablewidget->cellWidget(0, 4))->setRange(0.0001,1000000.0);
((QDoubleSpinBox *)SignalsTablewidget->cellWidget(0, 4))->setValue(1.0);
QStringList horizontallabels;
horizontallabels += "";
horizontallabels += "Label";
horizontallabels += "Physical maximum";
horizontallabels += "Physical dimension";
horizontallabels += "Multiplier";
SignalsTablewidget->setHorizontalHeaderLabels(horizontallabels);
GoButton = new QPushButton(ascii2edfDialog);
GoButton->setGeometry(20, 480, 75, 25);
GoButton->setText("Start");
CloseButton = new QPushButton(ascii2edfDialog);
CloseButton->setGeometry(160, 480, 75, 25);
CloseButton->setText("Cancel");
SaveButton = new QPushButton(ascii2edfDialog);
SaveButton->setGeometry(400, 480, 75, 25);
SaveButton->setText("Save");
LoadButton = new QPushButton(ascii2edfDialog);
LoadButton->setGeometry(510, 480, 75, 25);
LoadButton->setText("Load");
columns = 1;
edfsignals = 1;
QObject::connect(NumcolumnsSpinbox, SIGNAL(valueChanged(int)), this, SLOT(numofcolumnschanged(int)));
QObject::connect(GoButton, SIGNAL(clicked()), this, SLOT(gobuttonpressed()));
QObject::connect(CloseButton, SIGNAL(clicked()), ascii2edfDialog, SLOT(close()));
QObject::connect(SaveButton, SIGNAL(clicked()), this, SLOT(savebuttonpressed()));
QObject::connect(LoadButton, SIGNAL(clicked()), this, SLOT(loadbuttonpressed()));
QObject::connect(autoPhysicalMaximumCheckbox, SIGNAL(stateChanged(int)), this, SLOT(autoPhysicalMaximumCheckboxChanged(int)));
ascii2edfDialog->exec();
}
void UI_ASCII2EDFapp::autoPhysicalMaximumCheckboxChanged(int state)
{
int i;
if(state == Qt::Checked)
{
autoPhysicalMaximum = 1;
for(i=0; i< columns; i++)
{
((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->setEnabled(false);
}
}
else
{
autoPhysicalMaximum = 0;
for(i=0; i< columns; i++)
{
((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->setEnabled(true);
}
}
}
void UI_ASCII2EDFapp::numofcolumnschanged(int cnt)
{
int i;
if(cnt>columns)
{
SignalsTablewidget->setRowCount(cnt);
for(i=columns; i<cnt; i++)
{
SignalsTablewidget->setRowHeight(i, 20);
SignalsTablewidget->setCellWidget(i, 0, new QCheckBox);
((QCheckBox *)SignalsTablewidget->cellWidget(i, 0))->setCheckState(Qt::Checked);
SignalsTablewidget->setCellWidget(i, 1, new QLineEdit);
((QLineEdit *)SignalsTablewidget->cellWidget(i, 1))->setMaxLength(16);
SignalsTablewidget->setCellWidget(i, 2, new QLineEdit);
((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->setMaxLength(7);
if(autoPhysicalMaximum)
{
((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->setEnabled(false);
}
else
{
((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->setEnabled(true);
}
SignalsTablewidget->setCellWidget(i, 3, new QLineEdit);
((QLineEdit *)SignalsTablewidget->cellWidget(i, 3))->setMaxLength(8);
SignalsTablewidget->setCellWidget(i, 4, new QDoubleSpinBox);
((QDoubleSpinBox *)SignalsTablewidget->cellWidget(i, 4))->setDecimals(4);
((QDoubleSpinBox *)SignalsTablewidget->cellWidget(i, 4))->setRange(0.0001,1000000.0);
((QDoubleSpinBox *)SignalsTablewidget->cellWidget(i, 4))->setValue(1.0);
edfsignals++;
}
}
if(cnt<columns)
{
for(i=columns-1; i>=cnt; i--)
{
delete SignalsTablewidget->cellWidget(i, 0);
delete SignalsTablewidget->cellWidget(i, 1);
delete SignalsTablewidget->cellWidget(i, 2);
delete SignalsTablewidget->cellWidget(i, 3);
delete SignalsTablewidget->cellWidget(i, 4);
SignalsTablewidget->removeRow(i);
edfsignals--;
}
}
columns = cnt;
}
void UI_ASCII2EDFapp::gobuttonpressed()
{
int i, j, k, p,
column,
column_end,
headersize,
temp,
datarecords,
str_start,
line_nr,
smpls_per_block=0,
bufsize=0,
edf_signal,
len;
char path[MAX_PATH_LENGTH],
txt_string[ASCII_MAX_LINE_LEN],
str[256],
line[ASCII_MAX_LINE_LEN],
*buf,
scratchpad[128],
outputfilename[MAX_PATH_LENGTH];
FILE *inputfile,
*outputfile;
ascii2edfDialog->setEnabled(false);
if(edfButton->isChecked() == true)
{
edf_format = 1;
}
else
{
edf_format = 0;
}
if(check_input())
{
ascii2edfDialog->setEnabled(true);
return;
}
if(!(strlen(PatientnameLineEdit->text().toLatin1().data())))
{
QMessageBox messagewindow(QMessageBox::Critical, "Invalid input", "Please enter a subjectname.");
messagewindow.exec();
ascii2edfDialog->setEnabled(true);
return;
}
if(!(strlen(RecordingLineEdit->text().toLatin1().data())))
{
QMessageBox messagewindow(QMessageBox::Critical, "Invalid input", "Please enter a recording description.");
messagewindow.exec();
ascii2edfDialog->setEnabled(true);
return;
}
strcpy(path, QFileDialog::getOpenFileName(0, "Open ASCII file", QString::fromLocal8Bit(recent_opendir), "ASCII files (*.txt *.TXT *.csv *.CSV)").toLocal8Bit().data());
if(!strcmp(path, ""))
{
ascii2edfDialog->setEnabled(true);
return;
}
get_directory_from_path(recent_opendir, path, MAX_PATH_LENGTH);
inputfile = fopeno(path, "rb");
if(inputfile==NULL)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Can not open file for reading.");
messagewindow.exec();
ascii2edfDialog->setEnabled(true);
return;
}
/********************** check file *************************/
rewind(inputfile);
temp = 0;
for(i=0; i<(startline-1);)
{
temp = fgetc(inputfile);
if(temp==EOF)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "File does not contain enough lines.");
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
if(temp=='\n')
{
i++;
}
}
headersize = ftello(inputfile);
columns = NumcolumnsSpinbox->value();
column_end = 1;
column = 0;
for(i=0; i<(ASCII_MAX_LINE_LEN - 2); i++)
{
temp = fgetc(inputfile);
if(temp==EOF)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "File does not contain enough lines.");
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
if(temp=='\r')
{
continue;
}
if(temp==separator)
{
if(!column_end)
{
column++;
column_end = 1;
}
}
else
{
if(temp=='\n')
{
if(!column_end)
{
column++;
}
if(column!=columns)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Number of columns does not match.");
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
break;
}
column_end = 0;
}
}
if(i>ASCII_MAX_LINE_LEN)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Too many characters in a line.");
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
/***************** find highest physical maximums ***********************/
if(autoPhysicalMaximum)
{
QApplication::setOverrideCursor(Qt::WaitCursor);
for(j=0; j<10; j++) qApp->processEvents();
for(i=0; i<ASCII_MAX_EDF_SIGNALS; i++)
{
physmax[i] = 0.00001;
}
fseeko(inputfile, (long long)headersize, SEEK_SET);
i = 0;
column = 0;
column_end = 1;
str_start = 0;
edf_signal = 0;
line_nr = startline;
while(1)
{
temp = fgetc(inputfile);
if(temp==EOF)
{
break;
}
line[i] = temp;
if(line[i]=='\r')
{
continue;
}
if(separator!=',')
{
if(line[i]==',')
{
line[i] = '.';
}
}
if(line[i]==separator)
{
if(!column_end)
{
if(column_enabled[column])
{
value[edf_signal] = atof(line + str_start);
edf_signal++;
}
column_end = 1;
column++;
}
}
else
{
if(line[i]!='\n')
{
if(column_end)
{
str_start = i;
column_end = 0;
}
}
}
if(line[i]=='\n')
{
if(!column_end)
{
if(column_enabled[column])
{
value[edf_signal] = atof(line + str_start);
edf_signal++;
}
column++;
column_end = 1;
}
if(column!=columns)
{
for(j=0; j<ASCII_MAX_LINE_LEN; j++)
{
if(fgetc(inputfile) == EOF)
{
break; /* ignore error because we reached the end of the file */
} /* added this code because some ascii-files stop abruptly in */
} /* the middle of a row but they do put a newline-character at the end */
if(j < ASCII_MAX_LINE_LEN)
{
break;
}
QApplication::restoreOverrideCursor();
snprintf(txt_string, ASCII_MAX_LINE_LEN, "Error, number of columns in line %i is wrong.\n", line_nr);
QMessageBox messagewindow(QMessageBox::Critical, "Error", txt_string);
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
line_nr++;
for(j=0; j<edfsignals; j++)
{
if(value[j] < 0.0)
{
value[j] *= -1.0;
}
if(physmax[j] < value[j])
{
physmax[j] = value[j];
}
}
str_start = 0;
i = 0;
column = 0;
column_end = 1;
edf_signal = 0;
qApp->processEvents();
continue;
}
i++;
if(i>(ASCII_MAX_LINE_LEN - 2))
{
QApplication::restoreOverrideCursor();
snprintf(txt_string, ASCII_MAX_LINE_LEN, "Error, line %i is too long.\n", line_nr);
QMessageBox messagewindow(QMessageBox::Critical, "Error", txt_string);
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
}
columns = NumcolumnsSpinbox->value();
edf_signal = 0;
for(i=0; i<columns; i++)
{
if(column_enabled[i])
{
physmax[edf_signal] *= ((QDoubleSpinBox *)SignalsTablewidget->cellWidget(i, 4))->value();
if(physmax[edf_signal] > 9999999.0)
{
physmax[edf_signal] = 9999999.0;
}
if(edf_format)
{
sensitivity[edf_signal] = 32767.0 / physmax[edf_signal];
}
else
{
sensitivity[edf_signal] = 8388607.0 / physmax[edf_signal];
}
sensitivity[edf_signal++] *= ((QDoubleSpinBox *)SignalsTablewidget->cellWidget(i, 4))->value();
}
}
QApplication::restoreOverrideCursor();
}
/***************** write header *****************************************/
outputfilename[0] = 0;
if(recent_savedir[0]!=0)
{
strcpy(outputfilename, recent_savedir);
strcat(outputfilename, "/");
}
len = strlen(outputfilename);
get_filename_from_path(outputfilename + len, path, MAX_PATH_LENGTH - len);
remove_extension_from_filename(outputfilename);
if(edf_format)
{
strcat(outputfilename, ".edf");
strcpy(outputfilename, QFileDialog::getSaveFileName(0, "Output file", QString::fromLocal8Bit(outputfilename), "EDF files (*.edf *.EDF)").toLocal8Bit().data());
}
else
{
strcat(outputfilename, ".bdf");
strcpy(outputfilename, QFileDialog::getSaveFileName(0, "Output file", QString::fromLocal8Bit(outputfilename), "BDF files (*.bdf *.BDF)").toLocal8Bit().data());
}
if(!strcmp(outputfilename, ""))
{
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
get_directory_from_path(recent_savedir, outputfilename, MAX_PATH_LENGTH);
outputfile = fopeno(outputfilename, "wb");
if(outputfile==NULL)
{
snprintf(txt_string, ASCII_MAX_LINE_LEN, "Can not open file %s for writing.", outputfilename);
QMessageBox messagewindow(QMessageBox::Critical, "Error", txt_string);
messagewindow.exec();
fclose(inputfile);
ascii2edfDialog->setEnabled(true);
return;
}
if(edf_format)
{
fprintf(outputfile, "0 ");
}
else
{
fputc(255, outputfile);
fprintf(outputfile, "BIOSEMI");
}
p = snprintf(scratchpad, 128, "%s", PatientnameLineEdit->text().toLatin1().data());
for( ; p<80; p++)
{
scratchpad[p] = ' ';
}
latin1_to_ascii(scratchpad, 80);
scratchpad[80] = 0;
fprintf(outputfile, "%s", scratchpad);
p = snprintf(scratchpad, 128, "%s", RecordingLineEdit->text().toLatin1().data());
for( ; p<80; p++)
{
scratchpad[p] = ' ';
}
latin1_to_ascii(scratchpad, 80);
scratchpad[80] = 0;
fprintf(outputfile, "%s", scratchpad);
fprintf(outputfile,
"%02i.%02i.%02i%02i.%02i.%02i",
StartDatetimeedit->date().day(),
StartDatetimeedit->date().month(),
StartDatetimeedit->date().year() % 100,
StartDatetimeedit->time().hour(),
StartDatetimeedit->time().minute(),
StartDatetimeedit->time().second());
fprintf(outputfile, "%-8i", 256 * edfsignals + 256);
fprintf(outputfile, " ");
fprintf(outputfile, "-1 ");
if(samplefrequency<1.0)
{
datrecduration = 1.0 / samplefrequency;
snprintf(str, 256, "%.8f", datrecduration);
if(fwrite(str, 8, 1, outputfile)!=1)
{
QMessageBox messagewindow(QMessageBox::Critical, "Error", "A write error occurred.");
messagewindow.exec();
fclose(inputfile);
fclose(outputfile);
ascii2edfDialog->setEnabled(true);
return;
}
}
else
{
if(((int)samplefrequency)%10)
{
datrecduration = 1.0;
fprintf(outputfile, "1 ");
}
else
{
datrecduration = 0.1;
fprintf(outputfile, "0.1 ");
}
}
fprintf(outputfile, "%-4i", edfsignals);
for(i=0; i<columns; i++)
{
if(column_enabled[i])
{
p = fprintf(outputfile, "%s", ((QLineEdit *)SignalsTablewidget->cellWidget(i, 1))->text().toLatin1().data());
for(j=p; j<16; j++)
{
fputc(' ', outputfile);
}
}
}
for(i=0; i<(80*edfsignals); i++)
{
fputc(' ', outputfile);
}
for(i=0; i<columns; i++)
{
if(column_enabled[i])
{
p = fprintf(outputfile, "%s", ((QLineEdit *)SignalsTablewidget->cellWidget(i, 3))->text().toLatin1().data());
for(j=p; j<8; j++)
{
fputc(' ', outputfile);
}
}
}
edf_signal = 0;
for(i=0; i<columns; i++)
{
if(column_enabled[i])
{
if(autoPhysicalMaximum)
{
sprintf(str, "%.8f", physmax[edf_signal++] * -1.0);
strcat(str, " ");
str[8] = 0;
fprintf(outputfile, "%s", str);
}
else
{
fputc('-', outputfile);
p = fprintf(outputfile, "%s", ((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->text().toLatin1().data());
for(j=p; j<7; j++)
{
fputc(' ', outputfile);
}
}
}
}
edf_signal = 0;
for(i=0; i<columns; i++)
{
if(column_enabled[i])
{
if(autoPhysicalMaximum)
{
sprintf(str, "%.8f", physmax[edf_signal++]);
strcat(str, " ");
str[8] = 0;
fprintf(outputfile, "%s", str);
}
else
{
p = fprintf(outputfile, "%s", ((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->text().toLatin1().data());
for(j=p; j<8; j++)
{
fputc(' ', outputfile);
}
if(edf_format)
{
sensitivity[edf_signal] = 32767.0 / atof(((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->text().toLatin1().data());
}
else
{
sensitivity[edf_signal] = 8388607.0 / atof(((QLineEdit *)SignalsTablewidget->cellWidget(i, 2))->text().toLatin1().data());
}
sensitivity[edf_signal++] *= ((QDoubleSpinBox *)SignalsTablewidget->cellWidget(i, 4))->value();
}
}
}
for(i=0; i<edfsignals; i++)
{
if(edf_format)
{
fprintf(outputfile, "-32768 ");
}
else
{
fprintf(outputfile, "-8388608");
}
}
for(i=0; i<edfsignals; i++)
{
if(edf_format)
{
fprintf(outputfile, "32767 ");
}
else
{
fprintf(outputfile, "8388607 ");
}
}
for(i=0; i<(80*edfsignals); i++)
{
fputc(' ', outputfile);
}
if(samplefrequency<1.0)
{
for(i=0; i<edfsignals; i++)
{
fprintf(outputfile, "1 ");
smpls_per_block = 1;
}
}
else
{
if(((int)samplefrequency)%10)
{
for(i=0; i<edfsignals; i++)
{
fprintf(outputfile, "%-8i", (int)samplefrequency);
smpls_per_block = (int)samplefrequency;
}
}
else
{
for(i=0; i<edfsignals; i++)
{
fprintf(outputfile, "%-8i", ((int)samplefrequency) / 10);
smpls_per_block = ((int)samplefrequency) / 10;
}
}
}
for(i=0; i<(32*edfsignals); i++)
{
fputc(' ', outputfile);
}
/***************** start conversion **************************************/
QApplication::setOverrideCursor(Qt::WaitCursor);
for(j=0; j<10; j++) qApp->processEvents();
if(edf_format)
{
bufsize = smpls_per_block * 2 * edfsignals;
}
else
{
bufsize = smpls_per_block * 3 * edfsignals;
}
buf = (char *)calloc(1, bufsize);
if(buf==NULL)
{
QApplication::restoreOverrideCursor();
QMessageBox messagewindow(QMessageBox::Critical, "Error", "Malloc error (buf)");
messagewindow.exec();
fclose(inputfile);
fclose(outputfile);
ascii2edfDialog->setEnabled(true);
return;
}
fseeko(inputfile, (long long)headersize, SEEK_SET);
i = 0;
k = 0;
column = 0;
column_end = 1;
datarecords = 0;
str_start = 0;
edf_signal = 0;
line_nr = startline;
while(1)
{
temp = fgetc(inputfile);
if(temp==EOF)
{
break;
}
line[i] = temp;
if(line[i]=='\r')
{
continue;
}
if(separator!=',')
{
if(line[i]==',')
{
line[i] = '.';
}
}
if(line[i]==separator)
{
if(!column_end)
{
if(column_enabled[column])
{
value[edf_signal] = atof(line + str_start);
edf_signal++;
}
column_end = 1;
column++;
}
}
else
{
if(line[i]!='\n')
{
if(column_end)
{
str_start = i;
column_end = 0;
}
}
}
if(line[i]=='\n')
{
if(!column_end)
{
if(column_enabled[column])
{
value[edf_signal] = atof(line + str_start);