#include "test.h"
#include <QtCore>
#include <QtWidgets>

Test::Test()
{
    connect(this,&Test::sig_start1, this, &Test::example1, Qt::QueuedConnection);
    emit sig_start1();
}

void Test::example1()
{
    QSplashScreen * splash = new QSplashScreen();

    QPixmap pm(400,400);
    pm.fill(Qt::gray);
    splash->setPixmap(pm);

    QFont f = splash->font();
    f.setPointSize(16);
    splash->setFont(f);
    splash->show();
    splash->showMessage("You should see this");
    splash->repaint();
    QApplication::processEvents();

    lengthyProcess();
}


 void Test::lengthyProcess()
 {
     // This just wastes time to simulate a heavy processing task

     qDebug() << "start lengthy processing";

     qint64 t0 = QDateTime::currentSecsSinceEpoch();
     qint64 diff = 0;
     while (diff < 10)
     {
         qint64 t1 = QDateTime::currentSecsSinceEpoch();

         diff = t1 - t0;
     }

     qDebug() << "end lengthy processing";
 }