Difference between revisions of "Qt/Widgets/Timer"

#include <QProgressDialog>
#include <QApplication>
 
#include "form.h"
 
int main( int argc, char **argv )
{
  QApplication app(argc, argv);
  MainWindow window;
 
  window.show();
 
  return app.exec();
}

#include <QtGui>
//#include <qtimer.h>
#include <QTimer>
 
#include "form.h"
#include <iostream>
 
MainWindow::MainWindow()
{
  ui.setupUi(this);
}
 
void MainWindow::on_btnStart_clicked()
{
  std::cout << "button clicked." << std::endl;
 
  //QTimer* timer = new QTimer(this);
  connect(&timer, SIGNAL(timeout()), this, SLOT(TimerEvent()));
  this->timer.start(1000);
 
  //QProgressDialog dialog;
  this->dialog.setMaximum(0);
  this->dialog.setMinimum(0);
  this->dialog.exec();
 
}
 
void MainWindow::TimerEvent()
{
  std::cout << "Timer expired." << std::endl; 
  this->dialog.cancel();
  this->timer.stop();
}

#ifndef BUTTONFORM_H
#define BUTTONFORM_H
 
#include "ui_main.h"
 
//class QTimer;
#include <QTimer>
//class QProgressDialog;
#include <QProgressDialog>
 
//class MainWindow : public QWidget
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
  MainWindow();
 
  public slots:
  void on_btnStart_clicked();  
  void TimerEvent();
 
private:
    Ui::MainWindow ui;
    //QTimer* timer = new QTimer(this);
    QTimer timer;
    QProgressDialog dialog;
};
 
#endif