Display files one by one for particular directory - Just like antivirus scanning.

[wysota]

What do you mean "one by one"? Doesn't the code you posted do that already?

[Gurpreet]

mean of one by one is that second file must be shown after a one second of first file shown..

[wysota]

mean of one by one is that second file must be shown after a one second of first file shown..

Hmmm.... why?

class InsertToListDelayer : public QObject {
  Q_OBJECT
public:
  InsertToListDelayer(QStringList items, QListWidget *list, int delay = 1000, QObject *parent = 0) : QObject(parent) {
    m_items = items;
    m_list = list;
    m_delay = delay;
    m_timer = -1;
  }
public slots:
  void start(int delay = -1) {
    if(delay > 0) m_delay = delay;
    m_timer = startTimer(m_delay);
  }
  void stop() {
    if(m_timer != -1) { killTimer(m_timer); m_timer = -1; }
  }
signals:
  void finished();
protected:
  void timerEvent(QTimerEvent *te) {
    m_list->addItem(m_items.takeFirst());
    if(m_items.isEmpty()) {
        stop();
        emit finished();
    }
  }
private:
  int m_timer, m_delay;
  QStringList m_items;
  QListWidget* m_list;
};

class InsertToListDelayer : public QObject {
  Q_OBJECT
public:
  InsertToListDelayer(QStringList items, QListWidget *list, int delay = 1000, QObject *parent = 0) : QObject(parent) {
    m_items = items;
    m_list = list;
    m_delay = delay;
    m_timer = -1;
  }
public slots:
  void start(int delay = -1) {
    if(delay > 0) m_delay = delay;
    m_timer = startTimer(m_delay);
  }
  void stop() {
    if(m_timer != -1) { killTimer(m_timer); m_timer = -1; }
  }
signals:
  void finished();
protected:
  void timerEvent(QTimerEvent *te) {
    m_list->addItem(m_items.takeFirst());
    if(m_items.isEmpty()) {
        stop();
        emit finished();
    }
  }
private:
  int m_timer, m_delay;
  QStringList m_items;
  QListWidget* m_list;
};

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InsertToListDelayer *del = new InsertToListDelayer(lsdir.entryList(), lw, 1000, this);
del->start();
connect(del, SIGNAL(finished()), del, SLOT(deleteLater()));

InsertToListDelayer *del = new InsertToListDelayer(lsdir.entryList(), lw, 1000, this);
del->start();
connect(del, SIGNAL(finished()), del, SLOT(deleteLater()));

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