def set_dataset(self, data, tid=None):
"""Set the input dataset."""
self.closeContext()
if data is not None:
if tid in self._inputs:
# update existing input slot
slot = self._inputs[tid]
view = slot.view
# reset the (header) view state.
view.setModel(None)
view.horizontalHeader().setSortIndicator(-1, Qt.AscendingOrder)
else:
view = QTableView()
view.setSortingEnabled(True)
view.setHorizontalScrollMode(QTableView.ScrollPerPixel)
if self.select_rows:
view.setSelectionBehavior(QTableView.SelectRows)
header = view.horizontalHeader()
header.setSectionsMovable(True)
header.setSectionsClickable(True)
header.setSortIndicatorShown(True)
header.setSortIndicator(-1, Qt.AscendingOrder)
# QHeaderView does not 'reset' the model sort column,
# because there is no guaranty (requirement) that the
# models understand the -1 sort column.
def sort_reset(index, order):
if view.model() is not None and index == -1:
view.model().sort(index, order)
header.sortIndicatorChanged.connect(sort_reset)
view.dataset = data
self.tabs.addTab(view, getattr(data, "name", "Data"))
self._setup_table_view(view, data)
slot = TableSlot(tid, data, table_summary(data), view)
view._input_slot = slot
self._inputs[tid] = slot
self.tabs.setCurrentIndex(self.tabs.indexOf(view))
self.set_info(slot.summary)
if isinstance(slot.summary.len, concurrent.futures.Future):
def update(f):
QMetaObject.invokeMethod(self, "_update_info",
Qt.QueuedConnection)
slot.summary.len.add_done_callback(update)
elif tid in self._inputs:
slot = self._inputs.pop(tid)
view = slot.view
view.hide()
view.deleteLater()
self.tabs.removeTab(self.tabs.indexOf(view))
current = self.tabs.currentWidget()
if current is not None:
self.set_info(current._input_slot.summary)
self.tabs.tabBar().setVisible(self.tabs.count() > 1)
self.openContext(data)
if self.__pending_selected_rows is not None:
self.selected_rows = self.__pending_selected_rows
self.__pending_selected_rows = None
else:
self.selected_rows = []
if self.__pending_selected_cols is not None:
self.selected_cols = self.__pending_selected_cols
self.__pending_selected_cols = None
else:
self.selected_cols = []
self.set_selection()
self.commit()
def set_dataset(self, data, tid=None):
"""Set the input dataset."""
self.closeContext()
if data is not None:
if tid in self._inputs:
# update existing input slot
slot = self._inputs[tid]
view = slot.view
# reset the (header) view state.
view.setModel(None)
view.horizontalHeader().setSortIndicator(-1, Qt.AscendingOrder)
else:
view = QTableView()
view.setSortingEnabled(True)
view.setHorizontalScrollMode(QTableView.ScrollPerPixel)
if self.select_rows:
view.setSelectionBehavior(QTableView.SelectRows)
header = view.horizontalHeader()
header.setSectionsMovable(True)
header.setSectionsClickable(True)
header.setSortIndicatorShown(True)
header.setSortIndicator(-1, Qt.AscendingOrder)
# QHeaderView does not 'reset' the model sort column,
# because there is no guaranty (requirement) that the
# models understand the -1 sort column.
def sort_reset(index, order):
if view.model() is not None and index == -1:
view.model().sort(index, order)
header.sortIndicatorChanged.connect(sort_reset)
view.dataset = data
self.tabs.addTab(view, getattr(data, "name", "Data"))
self._setup_table_view(view, data)
slot = TableSlot(tid, data, table_summary(data), view)
view._input_slot = slot
self._inputs[tid] = slot
self.tabs.setCurrentIndex(self.tabs.indexOf(view))
self.set_info(slot.summary)
if isinstance(slot.summary.len, concurrent.futures.Future):
def update(f):
QMetaObject.invokeMethod(
self, "_update_info", Qt.QueuedConnection)
slot.summary.len.add_done_callback(update)
elif tid in self._inputs:
slot = self._inputs.pop(tid)
view = slot.view
view.hide()
view.deleteLater()
self.tabs.removeTab(self.tabs.indexOf(view))
current = self.tabs.currentWidget()
if current is not None:
self.set_info(current._input_slot.summary)
self.tabs.tabBar().setVisible(self.tabs.count() > 1)
self.selected_rows = []
self.selected_cols = []
self.openContext(data)
self.set_selection()
self.commit()