[Interest] QListView with delegate: support drag outside of QApplication

Frank Rueter | OHUfx frank at ohufx.com
Tue Jul 31 11:13:04 CEST 2018


Anybody?
Been trying to play with the view's dragMoveEvent to take over the 
default drag event's mime data and create a custom QDrag instance with 
it, but that crashes. I also tried just adding test to the event's mime 
data, but that  has no effect.
Maybe I do need to just re-implement the drag from scratch?

It feels like there should be a more elegant solution, right?!

Cheers,
frank

On 30/07/18 3:24 PM, Frank Rueter | OHUfx wrote:
>
> Hi all,
>
> I have an app that uses two QListViews with delegates.
> The user can drag ad drop items from one view into the other to create 
> something like a shopping list.
> So far so good.
> Now I need to enable the user to also drag an item out of the 
> application entirely.
> Is it possible to access the drag event data that the list view 
> produces by default, so I don’t have to re-invent the wheel for the 
> already functioning internal drag&drop?
>
> Here is a simplified example that just needs support for dragging an 
> item outside of the QApplication.
>
> Any tips would be much appreciated.
>
> Cheers,
> frank
>
> |import sys from PySide import QtGui, QtCore app = 
> QtGui.QApplication(sys.argv) class MyList(QtGui.QListView): def 
> __init__(self, parent=None): super(MyList, self).__init__(parent) 
> self.setDragEnabled(True) self.setAcceptDrops(True) list1 = MyList() 
> list2 = MyList() model1 = QtGui.QStandardItemModel(list1) model2 = 
> QtGui.QStandardItemModel(list1) 
> model2.setItemPrototype(QtGui.QStandardItem()) foods = [ 'Cookie 
> dough', 'Hummus', 'Spaghetti', 'Dal makhani', 'Chocolate whipped 
> cream' ] for food in foods: item = QtGui.QStandardItem(food) 
> model1.appendRow(item) list1.setModel(model1) list2.setModel(model2) w 
> = QtGui.QSplitter() w.addWidget(list1) w.addWidget(list2) w.show() 
> w.raise_() app.exec_() |
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