mirror of https://github.com/m-labs/artiq.git
gui/log: work around Qt scrolling bug. Closes #151
This commit is contained in:
parent
d8b98ae5d4
commit
0a36b03a12
|
@ -199,22 +199,37 @@ class LogDock(dockarea.Dock):
|
|||
|
||||
def rows_inserted_before(self):
|
||||
scrollbar = self.log.verticalScrollBar()
|
||||
self.scroll_at_bottom = scrollbar.value() == scrollbar.maximum()
|
||||
self.scroll_value = scrollbar.value()
|
||||
self.scroll_at_bottom = self.scroll_value == scrollbar.maximum()
|
||||
|
||||
def rows_inserted_after(self):
|
||||
if self.scroll_at_bottom:
|
||||
self.log.scrollToBottom()
|
||||
|
||||
# HACK:
|
||||
# Qt intermittently likes to scroll back to the top when rows are removed.
|
||||
# Work around this by restoring the scrollbar to the previously memorized
|
||||
# position, after the removal.
|
||||
# Note that this works because _LogModel always does the insertion right
|
||||
# before the removal.
|
||||
def rows_removed(self):
|
||||
if self.scroll_at_bottom:
|
||||
self.log.scrollToBottom()
|
||||
else:
|
||||
scrollbar = self.log.verticalScrollBar()
|
||||
scrollbar.setValue(self.scroll_value)
|
||||
|
||||
def init_log_model(self, init):
|
||||
table_model = _LogModel(self.log, init)
|
||||
self.table_model = _LogModel(self.log, init)
|
||||
self.table_model_filter = _LogFilterProxyModel(
|
||||
getattr(logging, self.filter_level.currentText()),
|
||||
self.filter_freetext.text())
|
||||
self.table_model_filter.setSourceModel(table_model)
|
||||
self.table_model_filter.setSourceModel(self.table_model)
|
||||
self.log.setModel(self.table_model_filter)
|
||||
self.table_model_filter.rowsAboutToBeInserted.connect(self.rows_inserted_before)
|
||||
self.table_model_filter.rowsInserted.connect(self.rows_inserted_after)
|
||||
return table_model
|
||||
self.table_model_filter.rowsRemoved.connect(self.rows_removed)
|
||||
return self.table_model
|
||||
|
||||
def save_state(self):
|
||||
return {"min_level_idx": self.filter_level.currentIndex()}
|
||||
|
|
Loading…
Reference in New Issue