Differenciate between item being dropped 'onto' and 'above/underneath' another item

WoGi

Hi I'm trying to do a custom implementation of the drag and drop methods of the QTreeView.

It's all working pretty good so far, except for the fact that I'm not sure how to differentiate between an item being dropped onto another item, and an item being dropped underneath/above an other item.

For sake of demonstration, a super stripped down verison of my current code:



from PySide import QtGui, QtCore

class QTreeViewCustom(QtGui.QTreeView):
    def __init__(self):

        super(QTreeViewCustom,self).__init__()

        self.setDragDropMode(QtGui.QAbstractItemView.InternalMove)
        self.setDragEnabled(True)
        self.setDropIndicatorShown(True)

        self.dataModel = QtGui.QStandardItemModel()
        
        self.root = self.dataModel.invisibleRootItem()
        self.root.setDropEnabled(True)

        self.setModel(self.dataModel)
        self.setSelectionMode(QtGui.QAbstractItemView.SelectionMode.ContiguousSelection)

        #fill the tree with items
        for i in range(10):
            self.root.appendRow(testItem(str(i)))

    def dragEnterEvent(self,event):
        index =  self.indexAt(event.pos())
        item = self.dataModel.itemFromIndex(index)
        self.draggedFrom = item.path
        event.acceptProposedAction()

    def dropEvent(self,event):
        index =  self.indexAt(event.pos())
        item = self.dataModel.itemFromIndex(index)
        self.draggedTo = item.path

        print 'source: ', self.draggedFrom

        '''
        would like be to able to do something like this here:
        if DROPPED_ON_TOP:
            print 'target (dropped on top): ', self.draggedTo
        else:
            print 'target: ', self.draggedTo
        ''''
class testItem(QtGui.QStandardItem):
    def __init__(self,name):

        super(testItem,self).__init__()
        self.path = 'test_%s'%name
        self.setText(name)

Thanks!

mrjj

Hi
Maybe you can calcualte it with
http://doc.qt.io/qt-5/qabstractitemview.html#visualRect
http://doc.qt.io/qt-5/qabstractitemview.html#indexAt

You get the drop point from the event
Then take the rect of the item dropped on
and see if u think it was top or bottom of it.