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Extracting some common cell/row/col highlighting logic in DataTable

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This commit is contained in:
Darren Burns
2023-01-16 16:38:21 +00:00
parent 5f797aae29
commit d2fd9ec9bc
1 changed files with 24 additions and 11 deletions
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35
src/textual/widgets/_data_table.py
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@@ -292,7 +292,14 @@ class DataTable(ScrollView, Generic[CellType], can_focus=True):
def watch_show_cursor(self, show_cursor: bool) -> None:
self._clear_caches()
self._scroll_cursor_into_view(animate=False)
if show_cursor and self.cursor_type != "none":
self._scroll_cursor_into_view(animate=False)
if self.cursor_type == "cell":
self._highlight_cell(self.cursor_cell)
elif self.cursor_type == "row":
self._highlight_row(self.cursor_row)
elif self.cursor_type == "column":
self._highlight_column(self.cursor_column)
def watch_show_header(self, show_header: bool) -> None:
self._clear_caches()
@@ -311,20 +318,26 @@ class DataTable(ScrollView, Generic[CellType], can_focus=True):
if old_coordinate != new_coordinate:
if self.cursor_type == "cell":
self.refresh_cell(*old_coordinate)
self.refresh_cell(*new_coordinate)
cell_value = self.get_cell_value(new_coordinate)
self.emit_no_wait(
DataTable.CellHighlighted(self, cell_value, new_coordinate)
)
self._highlight_cell(new_coordinate)
elif self.cursor_type == "row":
self.refresh_row(old_coordinate.row)
self.refresh_row(new_coordinate.row)
row_index, _ = self.cursor_cell
row_values = self.data[row_index]
self.emit_no_wait(DataTable.RowHighlighted(self, row_index))
self._highlight_row(new_coordinate.row)
elif self.cursor_type == "column":
self.refresh_column(old_coordinate.column)
self.refresh_column(new_coordinate.column)
self._highlight_column(new_coordinate.column)
def _highlight_cell(self, coordinate: Coord) -> None:
self.refresh_cell(*coordinate)
cell_value = self.get_cell_value(coordinate)
self.emit_no_wait(DataTable.CellHighlighted(self, cell_value, coordinate))
def _highlight_row(self, row_index: int) -> None:
self.refresh_row(row_index)
self.emit_no_wait(DataTable.RowHighlighted(self, row_index))
def _highlight_column(self, column_index: int) -> None:
self.refresh_column(column_index)
self.emit_no_wait(DataTable.ColumnHighlighted(self, column_index))
def validate_cursor_cell(self, value: Coord) -> Coord:
return self._clamp_cursor_cell(value)