text: #ifndef MAINWIDGET_H
  #define MAINWIDGET_H
  
  #include <QWidget>
  #include "../commom/dynamicbutton.h"
  class NumbersAnimWidget;
  class MainWidget : public QWidget
  {
      Q_OBJECT
  
  public:
      MainWidget(QWidget *parent = 0);
      ~MainWidget();
  private slots:
      void buttonClicked();
      void updateNum();
  private:
      DynamicButton *m_dyButton;
      NumbersAnimWidget *m_numsWidget;
      QTimer *m_timer;
  };
  
  #endif // MAINWIDGET_H
  