File size: 11,210 Bytes
7885a28 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 |
from __future__ import annotations
from collections import defaultdict
import datetime
import json
from typing import (
TYPE_CHECKING,
Any,
DefaultDict,
cast,
overload,
)
from pandas.io.excel._base import ExcelWriter
from pandas.io.excel._util import (
combine_kwargs,
validate_freeze_panes,
)
if TYPE_CHECKING:
from pandas._typing import (
ExcelWriterIfSheetExists,
FilePath,
StorageOptions,
WriteExcelBuffer,
)
from pandas.io.formats.excel import ExcelCell
class ODSWriter(ExcelWriter):
_engine = "odf"
_supported_extensions = (".ods",)
def __init__(
self,
path: FilePath | WriteExcelBuffer | ExcelWriter,
engine: str | None = None,
date_format: str | None = None,
datetime_format=None,
mode: str = "w",
storage_options: StorageOptions | None = None,
if_sheet_exists: ExcelWriterIfSheetExists | None = None,
engine_kwargs: dict[str, Any] | None = None,
**kwargs,
) -> None:
from odf.opendocument import OpenDocumentSpreadsheet
if mode == "a":
raise ValueError("Append mode is not supported with odf!")
engine_kwargs = combine_kwargs(engine_kwargs, kwargs)
self._book = OpenDocumentSpreadsheet(**engine_kwargs)
super().__init__(
path,
mode=mode,
storage_options=storage_options,
if_sheet_exists=if_sheet_exists,
engine_kwargs=engine_kwargs,
)
self._style_dict: dict[str, str] = {}
@property
def book(self):
"""
Book instance of class odf.opendocument.OpenDocumentSpreadsheet.
This attribute can be used to access engine-specific features.
"""
return self._book
@property
def sheets(self) -> dict[str, Any]:
"""Mapping of sheet names to sheet objects."""
from odf.table import Table
result = {
sheet.getAttribute("name"): sheet
for sheet in self.book.getElementsByType(Table)
}
return result
def _save(self) -> None:
"""
Save workbook to disk.
"""
for sheet in self.sheets.values():
self.book.spreadsheet.addElement(sheet)
self.book.save(self._handles.handle)
def _write_cells(
self,
cells: list[ExcelCell],
sheet_name: str | None = None,
startrow: int = 0,
startcol: int = 0,
freeze_panes: tuple[int, int] | None = None,
) -> None:
"""
Write the frame cells using odf
"""
from odf.table import (
Table,
TableCell,
TableRow,
)
from odf.text import P
sheet_name = self._get_sheet_name(sheet_name)
assert sheet_name is not None
if sheet_name in self.sheets:
wks = self.sheets[sheet_name]
else:
wks = Table(name=sheet_name)
self.book.spreadsheet.addElement(wks)
if validate_freeze_panes(freeze_panes):
freeze_panes = cast(tuple[int, int], freeze_panes)
self._create_freeze_panes(sheet_name, freeze_panes)
for _ in range(startrow):
wks.addElement(TableRow())
rows: DefaultDict = defaultdict(TableRow)
col_count: DefaultDict = defaultdict(int)
for cell in sorted(cells, key=lambda cell: (cell.row, cell.col)):
# only add empty cells if the row is still empty
if not col_count[cell.row]:
for _ in range(startcol):
rows[cell.row].addElement(TableCell())
# fill with empty cells if needed
for _ in range(cell.col - col_count[cell.row]):
rows[cell.row].addElement(TableCell())
col_count[cell.row] += 1
pvalue, tc = self._make_table_cell(cell)
rows[cell.row].addElement(tc)
col_count[cell.row] += 1
p = P(text=pvalue)
tc.addElement(p)
# add all rows to the sheet
if len(rows) > 0:
for row_nr in range(max(rows.keys()) + 1):
wks.addElement(rows[row_nr])
def _make_table_cell_attributes(self, cell) -> dict[str, int | str]:
"""Convert cell attributes to OpenDocument attributes
Parameters
----------
cell : ExcelCell
Spreadsheet cell data
Returns
-------
attributes : Dict[str, Union[int, str]]
Dictionary with attributes and attribute values
"""
attributes: dict[str, int | str] = {}
style_name = self._process_style(cell.style)
if style_name is not None:
attributes["stylename"] = style_name
if cell.mergestart is not None and cell.mergeend is not None:
attributes["numberrowsspanned"] = max(1, cell.mergestart)
attributes["numbercolumnsspanned"] = cell.mergeend
return attributes
def _make_table_cell(self, cell) -> tuple[object, Any]:
"""Convert cell data to an OpenDocument spreadsheet cell
Parameters
----------
cell : ExcelCell
Spreadsheet cell data
Returns
-------
pvalue, cell : Tuple[str, TableCell]
Display value, Cell value
"""
from odf.table import TableCell
attributes = self._make_table_cell_attributes(cell)
val, fmt = self._value_with_fmt(cell.val)
pvalue = value = val
if isinstance(val, bool):
value = str(val).lower()
pvalue = str(val).upper()
return (
pvalue,
TableCell(
valuetype="boolean",
booleanvalue=value,
attributes=attributes,
),
)
elif isinstance(val, datetime.datetime):
# Fast formatting
value = val.isoformat()
# Slow but locale-dependent
pvalue = val.strftime("%c")
return (
pvalue,
TableCell(valuetype="date", datevalue=value, attributes=attributes),
)
elif isinstance(val, datetime.date):
# Fast formatting
value = f"{val.year}-{val.month:02d}-{val.day:02d}"
# Slow but locale-dependent
pvalue = val.strftime("%x")
return (
pvalue,
TableCell(valuetype="date", datevalue=value, attributes=attributes),
)
elif isinstance(val, str):
return (
pvalue,
TableCell(
valuetype="string",
stringvalue=value,
attributes=attributes,
),
)
else:
return (
pvalue,
TableCell(
valuetype="float",
value=value,
attributes=attributes,
),
)
@overload
def _process_style(self, style: dict[str, Any]) -> str:
...
@overload
def _process_style(self, style: None) -> None:
...
def _process_style(self, style: dict[str, Any] | None) -> str | None:
"""Convert a style dictionary to a OpenDocument style sheet
Parameters
----------
style : Dict
Style dictionary
Returns
-------
style_key : str
Unique style key for later reference in sheet
"""
from odf.style import (
ParagraphProperties,
Style,
TableCellProperties,
TextProperties,
)
if style is None:
return None
style_key = json.dumps(style)
if style_key in self._style_dict:
return self._style_dict[style_key]
name = f"pd{len(self._style_dict)+1}"
self._style_dict[style_key] = name
odf_style = Style(name=name, family="table-cell")
if "font" in style:
font = style["font"]
if font.get("bold", False):
odf_style.addElement(TextProperties(fontweight="bold"))
if "borders" in style:
borders = style["borders"]
for side, thickness in borders.items():
thickness_translation = {"thin": "0.75pt solid #000000"}
odf_style.addElement(
TableCellProperties(
attributes={f"border{side}": thickness_translation[thickness]}
)
)
if "alignment" in style:
alignment = style["alignment"]
horizontal = alignment.get("horizontal")
if horizontal:
odf_style.addElement(ParagraphProperties(textalign=horizontal))
vertical = alignment.get("vertical")
if vertical:
odf_style.addElement(TableCellProperties(verticalalign=vertical))
self.book.styles.addElement(odf_style)
return name
def _create_freeze_panes(
self, sheet_name: str, freeze_panes: tuple[int, int]
) -> None:
"""
Create freeze panes in the sheet.
Parameters
----------
sheet_name : str
Name of the spreadsheet
freeze_panes : tuple of (int, int)
Freeze pane location x and y
"""
from odf.config import (
ConfigItem,
ConfigItemMapEntry,
ConfigItemMapIndexed,
ConfigItemMapNamed,
ConfigItemSet,
)
config_item_set = ConfigItemSet(name="ooo:view-settings")
self.book.settings.addElement(config_item_set)
config_item_map_indexed = ConfigItemMapIndexed(name="Views")
config_item_set.addElement(config_item_map_indexed)
config_item_map_entry = ConfigItemMapEntry()
config_item_map_indexed.addElement(config_item_map_entry)
config_item_map_named = ConfigItemMapNamed(name="Tables")
config_item_map_entry.addElement(config_item_map_named)
config_item_map_entry = ConfigItemMapEntry(name=sheet_name)
config_item_map_named.addElement(config_item_map_entry)
config_item_map_entry.addElement(
ConfigItem(name="HorizontalSplitMode", type="short", text="2")
)
config_item_map_entry.addElement(
ConfigItem(name="VerticalSplitMode", type="short", text="2")
)
config_item_map_entry.addElement(
ConfigItem(
name="HorizontalSplitPosition", type="int", text=str(freeze_panes[0])
)
)
config_item_map_entry.addElement(
ConfigItem(
name="VerticalSplitPosition", type="int", text=str(freeze_panes[1])
)
)
config_item_map_entry.addElement(
ConfigItem(name="PositionRight", type="int", text=str(freeze_panes[0]))
)
config_item_map_entry.addElement(
ConfigItem(name="PositionBottom", type="int", text=str(freeze_panes[1]))
)
|