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Import and export datatable utilities from public module

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Darren Burns
2023-02-01 14:51:05 +00:00
parent 67d79e16da
commit a7383e6a83
2 changed files with 27 additions and 10 deletions
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15
src/textual/widgets/_data_table.py
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@@ -39,15 +39,14 @@ from ..render import measure
from ..scroll_view import ScrollView from ..scroll_view import ScrollView
from ..strip import Strip from ..strip import Strip
CellCacheKey: TypeAlias = "tuple[RowKey, ColumnKey, Style, bool, bool, int]" _CellCacheKey: TypeAlias = "tuple[RowKey, ColumnKey, Style, bool, bool, int]"
LineCacheKey: TypeAlias = ( _LineCacheKey: TypeAlias = (
"tuple[int, int, int, int, Coordinate, Coordinate, Style, CursorType, bool, int]" "tuple[int, int, int, int, Coordinate, Coordinate, Style, CursorType, bool, int]"
) )
RowCacheKey: TypeAlias = ( _RowCacheKey: TypeAlias = (
"tuple[RowKey, int, Style, Coordinate, Coordinate, CursorType, bool, bool, int]" "tuple[RowKey, int, Style, Coordinate, Coordinate, CursorType, bool, bool, int]"
) )
CursorType = Literal["cell", "row", "column", "none"] CursorType = Literal["cell", "row", "column", "none"]
CELL: CursorType = "cell"
CellType = TypeVar("CellType") CellType = TypeVar("CellType")
@@ -237,7 +236,7 @@ class DataTable(ScrollView, Generic[CellType], can_focus=True):
zebra_stripes = Reactive(False) zebra_stripes = Reactive(False)
header_height = Reactive(1) header_height = Reactive(1)
show_cursor = Reactive(True) show_cursor = Reactive(True)
cursor_type = Reactive(CELL) cursor_type = Reactive("cell")
cursor_coordinate: Reactive[Coordinate] = Reactive( cursor_coordinate: Reactive[Coordinate] = Reactive(
Coordinate(0, 0), repaint=False, always_update=True Coordinate(0, 0), repaint=False, always_update=True
@@ -428,14 +427,14 @@ class DataTable(ScrollView, Generic[CellType], can_focus=True):
"""Maps column keys to column indices which represent column order.""" """Maps column keys to column indices which represent column order."""
self._row_render_cache: LRUCache[ self._row_render_cache: LRUCache[
RowCacheKey, tuple[SegmentLines, SegmentLines] _RowCacheKey, tuple[SegmentLines, SegmentLines]
] = LRUCache(1000) ] = LRUCache(1000)
"""For each row (a row can have a height of multiple lines), we maintain a cache """For each row (a row can have a height of multiple lines), we maintain a cache
of the fixed and scrollable lines within that row to minimise how often we need to of the fixed and scrollable lines within that row to minimise how often we need to
re-render it.""" re-render it."""
self._cell_render_cache: LRUCache[CellCacheKey, SegmentLines] = LRUCache(10000) self._cell_render_cache: LRUCache[_CellCacheKey, SegmentLines] = LRUCache(10000)
"""Cache for individual cells.""" """Cache for individual cells."""
self._line_cache: LRUCache[LineCacheKey, Strip] = LRUCache(1000) self._line_cache: LRUCache[_LineCacheKey, Strip] = LRUCache(1000)
"""Cache for lines within rows.""" """Cache for lines within rows."""
self._require_update_dimensions: bool = False self._require_update_dimensions: bool = False

22
src/textual/widgets/data_table.py
View File

@@ -1,5 +1,23 @@
"""Make non-widget DataTable support classes available.""" """Make non-widget DataTable support classes available."""
from ._data_table import Column, Row from ._data_table import (
Column,
Row,
RowKey,
ColumnKey,
CellKey,
CursorType,
CellType,
CellDoesNotExist,
)
__all__ = ["Column", "Row"] __all__ = [
"Column",
"Row",
"RowKey",
"ColumnKey",
"CellKey",
"CursorType",
"CellType",
"CellDoesNotExist",
]