#ifndef MAINWINDOW_H #define MAINWINDOW_H #include #include enum DS { idle, line, circle, rec, tri, set, clr }; QT_BEGIN_NAMESPACE namespace Ui { class MainWindow; } QT_END_NAMESPACE class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = nullptr); ~MainWindow(); protected: void paintEvent(QPaintEvent *event); void drawLineTriger(); int num1, num2, num3, num4; void mousePressEvent(QMouseEvent *); // void mouseMoveEvent(QMouseEvent *); // void mouseReleaseEvent(QMouseEvent *); private slots: void on_styCor_triggered(); void on_drawLine_triggered(); private: QPixmap pix; QPoint lastPoint; QPoint endPoint; DS drawStatus = idle; Ui::MainWindow *ui; }; #endif // MAINWINDOW_H