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Only check flags of cached rows

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Speeds up the selection process (esp. Ctrl+A) by avoiding to fetch rows.

Co-authored-by: BlueGreenMagick <BlueGreenMagick@users.noreply.github.com>
This commit is contained in:
RumovZ 2021-09-25 15:32:22 +02:00
parent 73ec0a2b2e
commit 3a8c494544
1 changed files with 8 additions and 2 deletions
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10
qt/aqt/browser/table/model.py
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@ -119,6 +119,10 @@ class DataModel(QAbstractTableModel):
)
return row
def get_cached_row(self, index: QModelIndex) -> Optional[CellRow]:
"""Get row if it is cached, regardless of staleness."""
return self._rows.get(self.get_item(index))
# Reset
def mark_cache_stale(self) -> None:
@ -326,8 +330,10 @@ class DataModel(QAbstractTableModel):
return None
def flags(self, index: QModelIndex) -> Qt.ItemFlags:
if self.get_row(index).is_deleted:
return Qt.ItemFlags(Qt.NoItemFlags)
# shortcut for large selections (Ctrl+A) to avoid fetching large numbers of rows at once
if row := self.get_cached_row(index):
if row.is_deleted:
return Qt.ItemFlags(Qt.NoItemFlags)
return cast(Qt.ItemFlags, Qt.ItemIsEnabled | Qt.ItemIsSelectable)