mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QtCore>
#include <QtGui>
#include <QtSql/QSqlTableModel>
#include <QtSql/QSql>
#include <QtSql/QSqlQuery>
#include <QtSql/QSqlError>
#include <QtSql/QSqlDatabase>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QUrl>
//#include <QtQml/QQmlEngine>

extern QSqlDatabase db;
extern QTimer *timer;
extern QString exchange, appgroup,crypt;
extern double from1h,to1h,from24h,to24h,from7d,to7d,markedcap_percent,volume_percent_min,volume_percent_max,price_change_from,price_change_to,volum_min,pricemin,pricemax;
extern bool change_1h,change_24h,change_7d,marked_cap,use_volume,show_only_blacklisted,change_price,createdb,pricefilter,volume_min_check;

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    QJsonArray ReadJson(const QString &path);
    QStringList readpairs();
    QStringList initializemodel();
    void combo_refresh(int index);
    void createdb();
    void initializeModel(QSqlTableModel *sqlmodel);
    QVariant loadsettings(QString settings);
    void savesettings(QString settings, QVariant attr);
    ~MainWindow();

private slots:
    void searchmodel(const QString&);
    void on_filter_clicked();
    void reload_model();
    void tableage();
    void on_actionUpdateDB_changed();
    void calc_profit();
    void on_actionUpdateJson_changed();
    void replyFinished (QNetworkReply *reply);
    void on_tables_activated(int index);

    void on_fileButton_clicked();

    void on_filterButton_clicked();

    void on_settingsButton_clicked();

    void on_stocksButton_clicked();

    void on_coffee_clicked();

private:
    Ui::MainWindow *ui;
    QSqlTableModel * sqlmodel;
    QStandardItemModel *model;
    QNetworkAccessManager *manager;
};
#endif // MAINWINDOW_H