full rework of the output order

outputdialog.h

@@ -5,6 +5,7 @@
 #include "output/output_options.h"
 #include <QComboBox>
 #include <QDialog>
+#include <outputcolumn.h>
 
 namespace Ui {
 class OutputDialog;
@@ -15,6 +16,7 @@ class OutputDialog : public QDialog {
 
     OutputOptions options;
     std::vector<Check> *checks;
+    std::vector<OutputColumn> *columns;
 
 public:
     explicit OutputDialog(QWidget *parent = nullptr, std::vector<Check> *checks = nullptr);
@@ -31,6 +33,8 @@ private slots:
 
 private:
     Ui::OutputDialog *ui;
+
+    void print_header(std::ofstream *output_file);
 };
 
 #endif // OUTPUTDIALOG_H