mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QAction>
#include <QGraphicsPixmapItem>
#include <QGraphicsScene>
#include <QGraphicsView>
#include <QLabel>
#include <QMainWindow>
#include <QMenuBar>
#include <QStatusBar>
#include <QToolBar>

class MainWindow : public QMainWindow {
    Q_OBJECT

public:
    explicit MainWindow(QWidget* parent = nullptr);

    ~MainWindow();

private:
    void initUI();
    void createActions();
    void showImage(QString);
    void setupShortcuts();

private slots:
    void openImage();
    void zoomIn();
    void zoomOut();
    void prevImage();
    void nextImage();
    void saveAs();
    void rectROI();
    void polygonROI();

private:
    QMenu* fileMenu;
    QMenu* viewMenu;

    QToolBar* fileToolBar;
    QToolBar* viewToolBar;

    QGraphicsScene* imageScene;
    QGraphicsView* imageView;

    QStatusBar* mainStatusBar;
    QLabel* mainStatusLabel;

    QAction* openAction;
    QAction* saveAsAction;
    QAction* exitAction;
    QAction* zoomInAction;
    QAction* zoomOutAction;
    QAction* prevAction;
    QAction* nextAction;
    QAction* rectAction;
    QAction* polygonAction;

    QString currentImagePath;
    QGraphicsPixmapItem* currentImage;
};

#endif // MAINWINDOW_H