PyQt5 allow selection of QListView items while editing

Question

I am trying to get click events (ultimately left, right and double click) to "pass through" an editor widget to the underlying QListView so that selections can happen. Figured Event Filters were probably the way to go, but I am a little confused as to where the eventFilter(object,event) function and the installEventFilter() call need to go in order for that to happen.

In my case, I am using a custom delegate class to draw my data in my QListView and am using an editor to update the model based upon cursor positions. I want this to just be constantly active, so I made my QListView active the editor upon entering an item.

dataView=QListView(self)
dataView.setGeometry(self.rect())
dataView.setViewMode(1)
dataView.setMovement(0)
dataView.setSelectionMode(QAbstractItemView.ExtendedSelection)
dataView.setMouseTracking(True)
dataView.entered.connect(dataView.edit)

delegate=CustomDelegate(self)
dataModel=QStandardItemModel(self)

dataView.setModel(dataModel)
dataView.setItemDelegate(delegate)

The downside to this is that while your mouse is on an item, it is now covered by the editor widget which I believe is collecting mouse click data thus blocking clicks from selecting the items within the QListView.

In my delegate, I have it create the editor as so and connect signals to update my data (frames) in my model to change the way the delegate displays and to close the editor

def createEditor(self,parent,option,index):
    editor=TestEditor(parent)
    editor.editingFinished.connect(self.deleteEditor)
    editor.updateFrame.connect(self.updateFrames)
    return editor

Where would I create my event filter? In my main where I am generating my QListView? Within a custom QListView? Within my Delegate? Or within my editor widget? And then where would I call the installEventFilter()?

score 0 · Accepted Answer · answered Feb 14 '18 at 23:07

It turns out in my case, the QListView wasn't responding to selection clicks because when you call the edit() function, the state of the viewer changes to "QAbstractItemView.EditingState" and in this state, apparently selection is disabled. I just subclassed QListView and added a beginEdit function.

class CustomList(QListView):
    def __init__(self,parent=None):
        super().__init__(parent)

    def beginEdit(self,index):
        state=self.state()
        self.edit(index)
        self.setState(state)

And then just connected this instead of edit.

dataView=CustomList(self)
dataView.entered.connect(dataView.beginEdit)

PyQt5 allow selection of QListView items while editing

1 Answers1