class ItemViewDragStartEventListener(QObject):
dragStarted = Signal(QModelIndex)
def __init__(self, parent=None):
QObject.__init__(self, parent)
self._pos = None
self._index = None
def eventFilter(self, viewport, event):
view = viewport.parent()
if event.type() == QEvent.MouseButtonPress and \
event.button() == Qt.LeftButton:
index = view.indexAt(event.pos())
if index is not None:
self._pos = event.pos()
self._index = QPersistentModelIndex(index)
elif event.type() == QEvent.MouseMove and self._pos is not None and \
((self._pos - event.pos()).manhattanLength() >=
QApplication.startDragDistance()):
if self._index.isValid():
# Map to a QModelIndex in the model.
index = self._index
index = index.model().index(index.row(), index.column(),
index.parent())
self._pos = None
self._index = None
self.dragStarted.emit(index)
return QObject.eventFilter(self, view, event)
class Worker(QObject):
"""
Problems/issues:
- None major?
- Minor: reload when in progress aborts the currently running one
resulting in a timeout in 60 sec. which overwrites the data.
Fixed by removing self.cancelSearch() in LDAPTreeItem
but should be properly fixed instead. (Removing cancel?)
"""
# Emitted by the workerThread when finished
listFetched = pyqtSignal(QModelIndex, tuple)
def __init__(self, parentIndex, parentItem):
super(Worker, self).__init__()
self.parentIndex = parentIndex
self.persistent = QPersistentModelIndex(parentIndex)
self.parentItem = parentItem
self.parentItem.loading = True
@pyqtSlot()
def start(self):
tupel = self.parentItem.fetchChildList()
if self.persistent.isValid():
# QPersistenModelIndex -> QModelIndex
# Should prefferably not be done here (changes can happend until the receiver-thread process the event)
# but Qt can't send QPersistentModelIndexes (yet?)
# Also, using QModelIndex through the whole process also works for some reason.
# The new items are placed right even though QModelIndex.row() is wrong (e.g. because
index = QModelIndex(self.persistent)
self.listFetched.emit(index, tupel)
class Worker(QObject):
"""
Problems/issues:
- None major?
- Minor: reload when in progress aborts the currently running one
resulting in a timeout in 60 sec. which overwrites the data.
Fixed by removing self.cancelSearch() in LDAPTreeItem
but should be properly fixed instead. (Removing cancel?)
"""
# Emitted by the workerThread when finished
listFetched = pyqtSignal(QModelIndex, tuple)
def __init__(self, parentIndex, parentItem):
super(Worker, self).__init__()
self.parentIndex = parentIndex
self.persistent = QPersistentModelIndex(parentIndex)
self.parentItem = parentItem
self.parentItem.loading = True
@pyqtSlot()
def start(self):
tupel = self.parentItem.fetchChildList()
if self.persistent.isValid():
# QPersistenModelIndex -> QModelIndex
# Should prefferably not be done here (changes can happend until the receiver-thread process the event)
# but Qt can't send QPersistentModelIndexes (yet?)
# Also, using QModelIndex through the whole process also works for some reason.
# The new items are placed right even though QModelIndex.row() is wrong (e.g. because
index = QModelIndex(self.persistent)
self.listFetched.emit(index, tupel)
class ItemViewDragStartEventListener(QObject):
dragStarted = Signal(QModelIndex)
def __init__(self, parent=None):
QObject.__init__(self, parent)
self._pos = None
self._index = None
def eventFilter(self, viewport, event):
view = viewport.parent()
if event.type() == QEvent.MouseButtonPress and \
event.button() == Qt.LeftButton:
index = view.indexAt(event.pos())
if index is not None:
self._pos = event.pos()
self._index = QPersistentModelIndex(index)
elif event.type() == QEvent.MouseMove and self._pos is not None and \
((self._pos - event.pos()).manhattanLength() >=
QApplication.startDragDistance()):
if self._index.isValid():
# Map to a QModelIndex in the model.
index = self._index
index = index.model().index(index.row(), index.column(),
index.parent())
self._pos = None
self._index = None
self.dragStarted.emit(index)
return QObject.eventFilter(self, view, event)
