def mouseMoveEvent(self, event):
dex = self.indexAt(event.pos())
if dex.isValid():
self.setCursor(Qt.PointingHandCursor)
else:
self.unsetCursor()
if not event.buttons() & Qt.LeftButton:
return
if self.in_drag_drop or not dex.isValid():
QTreeView.mouseMoveEvent(self, event)
return
# Must deal with odd case where the node being dragged is 'virtual',
# created to form a hierarchy. We can't really drag this node, but in
# addition we can't allow drag recognition to notice going over some
# other node and grabbing that one. So we set in_drag_drop to prevent
# this from happening, turning it off when the user lifts the button.
self.in_drag_drop = True
if not self._model.flags(dex) & Qt.ItemIsDragEnabled:
QTreeView.mouseMoveEvent(self, event)
return
md = self._model.mimeData([dex])
pixmap = dex.data(DRAG_IMAGE_ROLE).pixmap(self.iconSize())
drag = QDrag(self)
drag.setPixmap(pixmap)
drag.setMimeData(md)
if self._model.is_in_user_category(dex):
drag.exec_(Qt.CopyAction | Qt.MoveAction, Qt.CopyAction)
else:
drag.exec_(Qt.CopyAction)
def mouseMoveEvent(self, event):
dex = self.indexAt(event.pos())
if dex.isValid():
self.setCursor(Qt.PointingHandCursor)
else:
self.unsetCursor()
if not event.buttons() & Qt.LeftButton:
return
if self.in_drag_drop or not dex.isValid():
QTreeView.mouseMoveEvent(self, event)
return
# Must deal with odd case where the node being dragged is 'virtual',
# created to form a hierarchy. We can't really drag this node, but in
# addition we can't allow drag recognition to notice going over some
# other node and grabbing that one. So we set in_drag_drop to prevent
# this from happening, turning it off when the user lifts the button.
self.in_drag_drop = True
if not self._model.flags(dex) & Qt.ItemIsDragEnabled:
QTreeView.mouseMoveEvent(self, event)
return
md = self._model.mimeData([dex])
pixmap = dex.data(DRAG_IMAGE_ROLE).pixmap(self.iconSize())
drag = QDrag(self)
drag.setPixmap(pixmap)
drag.setMimeData(md)
if self._model.is_in_user_category(dex):
drag.exec_(Qt.CopyAction|Qt.MoveAction, Qt.CopyAction)
else:
drag.exec_(Qt.CopyAction)
def mouseMoveEvent(self, event):
dex = self.indexAt(event.pos())
if dex.isValid():
self.setCursor(Qt.PointingHandCursor)
else:
self.unsetCursor()
if not event.buttons() & Qt.LeftButton:
return
if self.in_drag_drop or not dex.isValid():
QTreeView.mouseMoveEvent(self, event)
return
# don't start drag/drop until the mouse has moved a bit.
if ((event.pos() - self.possible_drag_start).manhattanLength() <
QApplication.startDragDistance()):
QTreeView.mouseMoveEvent(self, event)
return
# Must deal with odd case where the node being dragged is 'virtual',
# created to form a hierarchy. We can't really drag this node, but in
# addition we can't allow drag recognition to notice going over some
# other node and grabbing that one. So we set in_drag_drop to prevent
# this from happening, turning it off when the user lifts the button.
self.in_drag_drop = True
if not self._model.flags(dex) & Qt.ItemIsDragEnabled:
QTreeView.mouseMoveEvent(self, event)
return
md = self._model.mimeData([dex])
pixmap = dex.data(DRAG_IMAGE_ROLE).pixmap(self.iconSize())
drag = QDrag(self)
drag.setPixmap(pixmap)
drag.setMimeData(md)
if (self._model.is_in_user_category(dex) or
self._model.is_index_on_a_hierarchical_category(dex)):
'''
Things break if we specify MoveAction as the default, which is
what we want for drag on hierarchical categories. Dragging user
categories stops working. Don't know why. To avoid the problem
we fix the action in dragMoveEvent.
'''
drag.exec_(Qt.CopyAction|Qt.MoveAction, Qt.CopyAction)
else:
drag.exec_(Qt.CopyAction)
def mouseMoveEvent(self, ev):
if self.indexAt(ev.pos()).isValid():
self.setCursor(Qt.PointingHandCursor)
else:
self.unsetCursor()
return QTreeView.mouseMoveEvent(self, ev)
def mouseMoveEvent(self, ev):
if self.indexAt(ev.pos()).isValid():
self.setCursor(Qt.PointingHandCursor)
else:
self.unsetCursor()
return QTreeView.mouseMoveEvent(self, ev)
