Drop Event without Subclass

deleted122

Hi guys,

i am creating a desktop application and i am struggling with QDropEvent.
I have a QDialog in my application containing 2 QListViews.
One list view is filled with a String List.
The task is to choose text from this first ListView and Drag it into the second one.
This is working fine.
But i want to have an event fired everytime some String is dropped into the second ListView.

The solution that i know about is to subclass QListView and create a dropEvent there.
What i want to do is to not have to subclass QListView, i found out it is possible to catch events by using the Event filter and checking the event that happened.
Problem is: i never get a Drop event

Here the relevant code:
myClass.h

class test : public QDialog
{
Q_OBJECT
...
protected:
bool eventFilter(QObject *watched, QEvent *event);

...

myClass.c

test:test()
{
QListView *left = new QListView(this);
left->setAcceptDrops(false);
left->setDragEnabled(true);
left->setDropIndicatorShown(true);
left->setEditTriggers(QAbstractItemView::NoEditTriggers);
left->setModel(model);
left->installEventFilter(this);

//same for the second one, just AcceptDrops = true and DragEnabled = false

}

bool test:eventFilter(QObject *watched, QEvent *event)
{
if(event->type() == QEvent::Drop)
{
qDebug()<<"Say hello from Drop";
return true;
}
else
{
retrun QObject::eventFilter(watched,event);
}

Any Ideas how to fix this or how to make it work without using the event filter are welcome
Thanks guys!

P.S: if you need more information just ask i will provide more if needed

Christian Ehrlicher

Please take a look at the drag and drop documentation here: http://doc.qt.io/qt-5/dnd.html

mrjj

Hi
Please be advised that the Views have a viewport object
and in most cases the events goes to it and not the
actual *View class. So you might need eventfilter on that instead.

its accessible via ui->ViewX->viewport()