I have to create an 2 custom events.
I followed this link & made my code :--
Is there a cleaner way to register Qt custom events?
Is it the right way to create & post & pass some data(Qstring) to the customized event ?
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Edit code as per Kuba Ober sugession :---
Mainwindow.h :--
UpdateEvent *myUpdateEvent ;
ClearEvent *myClearEvent ;
Mainwindow.c :---
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
i =0;
myUpdateEvent = new UpdateEvent("hello");
myClearEvent = new ClearEvent("bye");
QCoreApplication::postEvent(this, myUpdateEvent);
QCoreApplication::postEvent(this, myClearEvent);
}
bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
qDebug() << "oo";
if (UpdateEvent::is(event)) {
UpdateEvent *tempUpdateEvent = static_cast<UpdateEvent *>(event);
qDebug() << tempUpdateEvent->value();
}
else if (ClearEvent::is(event)) {
ClearEvent *tempClearEvent = static_cast<ClearEvent *>(event);
qDebug() << tempClearEvent->value();
}
return true;
}
event.h file :--
template <typename T> class StringEvent : public QEvent
{
QString m_str;
public:
explicit StringEvent(const QString val) : QEvent(staticType()), m_str(val)
{
}
QString setvalue(QString val)
{
m_str = val;
}
QString value() const
{
return m_str;
}
static QEvent::Type staticType()
{
static int type = QEvent::registerEventType();
return static_cast<QEvent::Type>(type);
}
static bool is(const QEvent * ev)
{
return ev->type() == staticType();
}
};
class UpdateEvent : public StringEvent<UpdateEvent>
{
public:
explicit UpdateEvent(QString val): StringEvent(val)
{
}
};
class ClearEvent : public StringEvent<ClearEvent>
{
public:
explicit ClearEvent(QString val): StringEvent(val)
{
}
};
why eventFilter is not triggered ? And i am not able to see debug message on postevent ?