xlwt/xlwt/Style.py excel样式源文件
from __future__ import print_function
# -*- coding: windows-1252 -*- from . import Formatting
from .BIFFRecords import NumberFormatRecord, XFRecord, StyleRecord
from .compat import basestring, xrange FIRST_USER_DEFINED_NUM_FORMAT_IDX = 164 class XFStyle(object): def __init__(self):
self.num_format_str = 'General'
self.font = Formatting.Font()
self.alignment = Formatting.Alignment()
self.borders = Formatting.Borders()
self.pattern = Formatting.Pattern()
self.protection = Formatting.Protection() default_style = XFStyle() class StyleCollection(object):
_std_num_fmt_list = [
'general',
'',
'0.00',
'#,##0',
'#,##0.00',
'"$"#,##0_);("$"#,##0)',
'"$"#,##0_);[Red]("$"#,##0)',
'"$"#,##0.00_);("$"#,##0.00)',
'"$"#,##0.00_);[Red]("$"#,##0.00)',
'0%',
'0.00%',
'0.00E+00',
'# ?/?',
'# ??/??',
'M/D/YY',
'D-MMM-YY',
'D-MMM',
'MMM-YY',
'h:mm AM/PM',
'h:mm:ss AM/PM',
'h:mm',
'h:mm:ss',
'M/D/YY h:mm',
'_(#,##0_);(#,##0)',
'_(#,##0_);[Red](#,##0)',
'_(#,##0.00_);(#,##0.00)',
'_(#,##0.00_);[Red](#,##0.00)',
'_("$"* #,##0_);_("$"* (#,##0);_("$"* "-"_);_(@_)',
'_(* #,##0_);_(* (#,##0);_(* "-"_);_(@_)',
'_("$"* #,##0.00_);_("$"* (#,##0.00);_("$"* "-"??_);_(@_)',
'_(* #,##0.00_);_(* (#,##0.00);_(* "-"??_);_(@_)',
'mm:ss',
'[h]:mm:ss',
'mm:ss.0',
'##0.0E+0',
'@'
] def __init__(self, style_compression=0):
self.style_compression = style_compression
self.stats = [0, 0, 0, 0, 0, 0]
self._font_id2x = {}
self._font_x2id = {}
self._font_val2x = {} for x in (0, 1, 2, 3, 5): # The font with index 4 is omitted in all BIFF versions
font = Formatting.Font()
search_key = font._search_key()
self._font_id2x[font] = x
self._font_x2id[x] = font
self._font_val2x[search_key] = x self._xf_id2x = {}
self._xf_x2id = {}
self._xf_val2x = {} self._num_formats = {}
for fmtidx, fmtstr in zip(range(0, 23), StyleCollection._std_num_fmt_list[0:23]):
self._num_formats[fmtstr] = fmtidx
for fmtidx, fmtstr in zip(range(37, 50), StyleCollection._std_num_fmt_list[23:]):
self._num_formats[fmtstr] = fmtidx self.default_style = XFStyle()
self._default_xf = self._add_style(self.default_style)[0] def add(self, style):
if style == None:
return 0x10
return self._add_style(style)[1] def _add_style(self, style):
num_format_str = style.num_format_str
if num_format_str in self._num_formats:
num_format_idx = self._num_formats[num_format_str]
else:
num_format_idx = (
FIRST_USER_DEFINED_NUM_FORMAT_IDX
+ len(self._num_formats)
- len(StyleCollection._std_num_fmt_list)
)
self._num_formats[num_format_str] = num_format_idx font = style.font
if font in self._font_id2x:
font_idx = self._font_id2x[font]
self.stats[0] += 1
elif self.style_compression:
search_key = font._search_key()
font_idx = self._font_val2x.get(search_key)
if font_idx is not None:
self._font_id2x[font] = font_idx
self.stats[1] += 1
else:
font_idx = len(self._font_x2id) + 1 # Why plus 1? Font 4 is missing
self._font_id2x[font] = font_idx
self._font_val2x[search_key] = font_idx
self._font_x2id[font_idx] = font
self.stats[2] += 1
else:
font_idx = len(self._font_id2x) + 1
self._font_id2x[font] = font_idx
self.stats[2] += 1 gof = (style.alignment, style.borders, style.pattern, style.protection)
xf = (font_idx, num_format_idx) + gof
if xf in self._xf_id2x:
xf_index = self._xf_id2x[xf]
self.stats[3] += 1
elif self.style_compression == 2:
xf_key = (font_idx, num_format_idx) + tuple(obj._search_key() for obj in gof)
xf_index = self._xf_val2x.get(xf_key)
if xf_index is not None:
self._xf_id2x[xf] = xf_index
self.stats[4] += 1
else:
xf_index = 0x10 + len(self._xf_x2id)
self._xf_id2x[xf] = xf_index
self._xf_val2x[xf_key] = xf_index
self._xf_x2id[xf_index] = xf
self.stats[5] += 1
else:
xf_index = 0x10 + len(self._xf_id2x)
self._xf_id2x[xf] = xf_index
self.stats[5] += 1 if xf_index >= 0xFFF:
# 12 bits allowed, 0xFFF is a sentinel value
raise ValueError("More than 4094 XFs (styles)") return xf, xf_index def add_font(self, font):
return self._add_font(font) def _add_font(self, font):
if font in self._font_id2x:
font_idx = self._font_id2x[font]
self.stats[0] += 1
elif self.style_compression:
search_key = font._search_key()
font_idx = self._font_val2x.get(search_key)
if font_idx is not None:
self._font_id2x[font] = font_idx
self.stats[1] += 1
else:
font_idx = len(self._font_x2id) + 1 # Why plus 1? Font 4 is missing
self._font_id2x[font] = font_idx
self._font_val2x[search_key] = font_idx
self._font_x2id[font_idx] = font
self.stats[2] += 1
else:
font_idx = len(self._font_id2x) + 1
self._font_id2x[font] = font_idx
self.stats[2] += 1 return font_idx def get_biff_data(self):
result = b''
result += self._all_fonts()
result += self._all_num_formats()
result += self._all_cell_styles()
result += self._all_styles()
return result def _all_fonts(self):
result = b''
if self.style_compression:
fonts = self._font_x2id.items()
else:
fonts = [(x, o) for o, x in self._font_id2x.items()]
for font_idx, font in sorted(fonts):
result += font.get_biff_record().get()
return result def _all_num_formats(self):
result = b''
alist = [
(v, k)
for k, v in self._num_formats.items()
if v >= FIRST_USER_DEFINED_NUM_FORMAT_IDX
]
alist.sort()
for fmtidx, fmtstr in alist:
result += NumberFormatRecord(fmtidx, fmtstr).get()
return result def _all_cell_styles(self):
result = b''
for i in range(0, 16):
result += XFRecord(self._default_xf, 'style').get()
if self.style_compression == 2:
styles = self._xf_x2id.items()
else:
styles = [(x, o) for o, x in self._xf_id2x.items()]
for xf_idx, xf in sorted(styles):
result += XFRecord(xf).get()
return result def _all_styles(self):
return StyleRecord().get() # easyxf and its supporting objects ################################### class EasyXFException(Exception):
pass class EasyXFCallerError(EasyXFException):
pass class EasyXFAuthorError(EasyXFException):
pass class IntULim(object):
# If astring represents a valid unsigned integer ('123', '0xabcd', etc)
# and it is <= limit, return the int value; otherwise return None. def __init__(self, limit):
self.limit = limit def __call__(self, astring):
try:
value = int(astring, 0)
except ValueError:
return None
if not 0 <= value <= self.limit:
return None
return value bool_map = {
# Text values for all Boolean attributes
'': 1, 'yes': 1, 'true': 1, 'on': 1,
'': 0, 'no': 0, 'false': 0, 'off': 0,
} border_line_map = {
# Text values for these borders attributes:
# left, right, top, bottom and diag
'no_line': 0x00,
'thin': 0x01,
'medium': 0x02,
'dashed': 0x03,
'dotted': 0x04,
'thick': 0x05,
'double': 0x06,
'hair': 0x07,
'medium_dashed': 0x08,
'thin_dash_dotted': 0x09,
'medium_dash_dotted': 0x0a,
'thin_dash_dot_dotted': 0x0b,
'medium_dash_dot_dotted': 0x0c,
'slanted_medium_dash_dotted': 0x0d,
} charset_map = {
# Text values for font.charset
'ansi_latin': 0x00,
'sys_default': 0x01,
'symbol': 0x02,
'apple_roman': 0x4d,
'ansi_jap_shift_jis': 0x80,
'ansi_kor_hangul': 0x81,
'ansi_kor_johab': 0x82,
'ansi_chinese_gbk': 0x86,
'ansi_chinese_big5': 0x88,
'ansi_greek': 0xa1,
'ansi_turkish': 0xa2,
'ansi_vietnamese': 0xa3,
'ansi_hebrew': 0xb1,
'ansi_arabic': 0xb2,
'ansi_baltic': 0xba,
'ansi_cyrillic': 0xcc,
'ansi_thai': 0xde,
'ansi_latin_ii': 0xee,
'oem_latin_i': 0xff,
} # Text values for colour indices. "grey" is a synonym of "gray".
# The names are those given by Microsoft Excel 2003 to the colours
# in the default palette. There is no great correspondence with
# any W3C name-to-RGB mapping.
_colour_map_text = """\
aqua 0x31
black 0x08
blue 0x0C
blue_gray 0x36
bright_green 0x0B
brown 0x3C
coral 0x1D
cyan_ega 0x0F
dark_blue 0x12
dark_blue_ega 0x12
dark_green 0x3A
dark_green_ega 0x11
dark_purple 0x1C
dark_red 0x10
dark_red_ega 0x10
dark_teal 0x38
dark_yellow 0x13
gold 0x33
gray_ega 0x17
gray25 0x16
gray40 0x37
gray50 0x17
gray80 0x3F
green 0x11
ice_blue 0x1F
indigo 0x3E
ivory 0x1A
lavender 0x2E
light_blue 0x30
light_green 0x2A
light_orange 0x34
light_turquoise 0x29
light_yellow 0x2B
lime 0x32
magenta_ega 0x0E
ocean_blue 0x1E
olive_ega 0x13
olive_green 0x3B
orange 0x35
pale_blue 0x2C
periwinkle 0x18
pink 0x0E
plum 0x3D
purple_ega 0x14
red 0x0A
rose 0x2D
sea_green 0x39
silver_ega 0x16
sky_blue 0x28
tan 0x2F
teal 0x15
teal_ega 0x15
turquoise 0x0F
violet 0x14
white 0x09
yellow 0x0D""" colour_map = {}
for _line in _colour_map_text.splitlines():
_name, _num = _line.split()
_num = int(_num, 0)
colour_map[_name] = _num
if 'gray' in _name:
colour_map[_name.replace('gray', 'grey')] = _num
del _colour_map_text, _line, _name, _num def add_palette_colour(colour_str, colour_index):
if not (8 <= colour_index <= 63):
raise Exception("add_palette_colour: colour_index (%d) not in range(8, 64)" %
(colour_index))
colour_map[colour_str] = colour_index # user-defined palette defines 56 RGB colors from entry 8 - 64
#excel_default_palette_b8 = [ # (red, green, blue)
# ( 0, 0, 0), (255,255,255), (255, 0, 0), ( 0,255, 0),
# ( 0, 0,255), (255,255, 0), (255, 0,255), ( 0,255,255),
# (128, 0, 0), ( 0,128, 0), ( 0, 0,128), (128,128, 0),
# (128, 0,128), ( 0,128,128), (192,192,192), (128,128,128),
# (153,153,255), (153, 51,102), (255,255,204), (204,255,255),
# (102, 0,102), (255,128,128), ( 0,102,204), (204,204,255),
# ( 0, 0,128), (255, 0,255), (255,255, 0), ( 0,255,255),
# (128, 0,128), (128, 0, 0), ( 0,128,128), ( 0, 0,255),
# ( 0,204,255), (204,255,255), (204,255,204), (255,255,153),
# (153,204,255), (255,153,204), (204,153,255), (255,204,153),
# ( 51,102,255), ( 51,204,204), (153,204, 0), (255,204, 0),
# (255,153, 0), (255,102, 0), (102,102,153), (150,150,150),
# ( 0, 51,102), ( 51,153,102), ( 0, 51, 0), ( 51, 51, 0),
# (153, 51, 0), (153, 51,102), ( 51, 51,153), ( 51, 51, 51),
# ] # Default colour table for BIFF8 copied from
# OpenOffice.org's Documentation of the Microsoft Excel File Format, Excel Version 2003
# Note palette has LSB padded with 2 bytes 0x00
excel_default_palette_b8 = (
0x00000000,
0xFFFFFF00,
0xFF000000,
0x00FF0000,
0x0000FF00,
0xFFFF0000,
0xFF00FF00,
0x00FFFF00,
0x80000000,
0x00800000,
0x00008000,
0x80800000,
0x80008000,
0x00808000,
0xC0C0C000,
0x80808000,
0x9999FF00,
0x99336600,
0xFFFFCC00,
0xCCFFFF00,
0x66006600,
0xFF808000,
0x0066CC00,
0xCCCCFF00,
0x00008000,
0xFF00FF00,
0xFFFF0000,
0x00FFFF00,
0x80008000,
0x80000000,
0x00808000,
0x0000FF00,
0x00CCFF00,
0xCCFFFF00,
0xCCFFCC00,
0xFFFF9900,
0x99CCFF00,
0xFF99CC00,
0xCC99FF00,
0xFFCC9900,
0x3366FF00,
0x33CCCC00,
0x99CC0000,
0xFFCC0000,
0xFF990000,
0xFF660000,
0x66669900,
0x96969600,
0x00336600,
0x33996600,
0x00330000,
0x33330000,
0x99330000,
0x99336600,
0x33339900,
0x33333300) assert len(excel_default_palette_b8) == 56 pattern_map = {
# Text values for pattern.pattern
# xlwt/doc/pattern_examples.xls showcases all of these patterns.
'no_fill': 0,
'none': 0,
'solid': 1,
'solid_fill': 1,
'solid_pattern': 1,
'fine_dots': 2,
'alt_bars': 3,
'sparse_dots': 4,
'thick_horz_bands': 5,
'thick_vert_bands': 6,
'thick_backward_diag': 7,
'thick_forward_diag': 8,
'big_spots': 9,
'bricks': 10,
'thin_horz_bands': 11,
'thin_vert_bands': 12,
'thin_backward_diag': 13,
'thin_forward_diag': 14,
'squares': 15,
'diamonds': 16,
} def any_str_func(s):
return s.strip() def colour_index_func(s, maxval=0x7F):
try:
value = int(s, 0)
except ValueError:
return None
if not (0 <= value <= maxval):
return None
return value colour_index_func_7 = colour_index_func def colour_index_func_15(s):
return colour_index_func(s, maxval=0x7FFF) def rotation_func(s):
try:
value = int(s, 0)
except ValueError:
return None
if not (-90 <= value <= 90):
raise EasyXFCallerError("rotation %d: should be -90 to +90 degrees" % value)
if value < 0:
value = 90 - value # encode as 91 to 180 (clockwise)
return value xf_dict = {
'align': 'alignment', # synonym
'alignment': {
'dire': {
'general': 0,
'lr': 1,
'rl': 2,
},
'direction': 'dire',
'horiz': 'horz',
'horizontal': 'horz',
'horz': {
'general': 0,
'left': 1,
'center': 2,
'centre': 2, # "align: horiz centre" means xf.alignment.horz is set to 2
'right': 3,
'filled': 4,
'justified': 5,
'center_across_selection': 6,
'centre_across_selection': 6,
'distributed': 7,
},
'inde': IntULim(15), # restriction: 0 <= value <= 15
'indent': 'inde',
'rota': [{'stacked': 255, 'none': 0, }, rotation_func],
'rotation': 'rota',
'shri': bool_map,
'shrink': 'shri',
'shrink_to_fit': 'shri',
'vert': {
'top': 0,
'center': 1,
'centre': 1,
'bottom': 2,
'justified': 3,
'distributed': 4,
},
'vertical': 'vert',
'wrap': bool_map,
},
'border': 'borders',
'borders': {
'left': [border_line_map, IntULim(0x0d)],
'right': [border_line_map, IntULim(0x0d)],
'top': [border_line_map, IntULim(0x0d)],
'bottom': [border_line_map, IntULim(0x0d)],
'diag': [border_line_map, IntULim(0x0d)],
'top_colour': [colour_map, colour_index_func_7],
'bottom_colour': [colour_map, colour_index_func_7],
'left_colour': [colour_map, colour_index_func_7],
'right_colour': [colour_map, colour_index_func_7],
'diag_colour': [colour_map, colour_index_func_7],
'top_color': 'top_colour',
'bottom_color': 'bottom_colour',
'left_color': 'left_colour',
'right_color': 'right_colour',
'diag_color': 'diag_colour',
'need_diag1': bool_map,
'need_diag2': bool_map,
},
'font': {
'bold': bool_map,
'charset': charset_map,
'color': 'colour_index',
'color_index': 'colour_index',
'colour': 'colour_index',
'colour_index': [colour_map, colour_index_func_15],
'escapement': {'none': 0, 'superscript': 1, 'subscript': 2},
'family': {'none': 0, 'roman': 1, 'swiss': 2, 'modern': 3, 'script': 4, 'decorative': 5, },
'height': IntULim(0xFFFF), # practical limits are much narrower e.g. 160 to 1440 (8pt to 72pt)
'italic': bool_map,
'name': any_str_func,
'outline': bool_map,
'shadow': bool_map,
'struck_out': bool_map,
'underline': [bool_map, {'none': 0, 'single': 1, 'single_acc': 0x21, 'double': 2, 'double_acc': 0x22, }],
},
'pattern': {
'back_color': 'pattern_back_colour',
'back_colour': 'pattern_back_colour',
'fore_color': 'pattern_fore_colour',
'fore_colour': 'pattern_fore_colour',
'pattern': [pattern_map, IntULim(16)],
'pattern_back_color': 'pattern_back_colour',
'pattern_back_colour': [colour_map, colour_index_func_7],
'pattern_fore_color': 'pattern_fore_colour',
'pattern_fore_colour': [colour_map, colour_index_func_7],
},
'protection': {
'cell_locked' : bool_map,
'formula_hidden': bool_map,
},
} def _esplit(s, split_char, esc_char="\\"):
escaped = False
olist = ['']
for c in s:
if escaped:
olist[-1] += c
escaped = False
elif c == esc_char:
escaped = True
elif c == split_char:
olist.append('')
else:
olist[-1] += c
return olist def _parse_strg_to_obj(strg, obj, parse_dict,
field_sep=",", line_sep=";", intro_sep=":", esc_char="\\", debug=False):
for line in _esplit(strg, line_sep, esc_char):
line = line.strip()
if not line:
break
split_line = _esplit(line, intro_sep, esc_char)
if len(split_line) != 2:
raise EasyXFCallerError('line %r should have exactly 1 "%c"' % (line, intro_sep))
section, item_str = split_line
section = section.strip().lower()
for counter in range(2):
result = parse_dict.get(section)
if result is None:
raise EasyXFCallerError('section %r is unknown' % section)
if isinstance(result, dict):
break
if not isinstance(result, str):
raise EasyXFAuthorError(
'section %r should map to dict or str object; found %r' % (section, type(result)))
# synonym
old_section = section
section = result
else:
raise EasyXFAuthorError('Attempt to define synonym of synonym (%r: %r)' % (old_section, result))
section_dict = result
section_obj = getattr(obj, section, None)
if section_obj is None:
raise EasyXFAuthorError('instance of %s class has no attribute named %s' % (obj.__class__.__name__, section))
for kv_str in _esplit(item_str, field_sep, esc_char):
guff = kv_str.split()
if not guff:
continue
k = guff[0].lower().replace('-', '_')
v = ' '.join(guff[1:])
if not v:
raise EasyXFCallerError("no value supplied for %s.%s" % (section, k))
for counter in xrange(2):
result = section_dict.get(k)
if result is None:
raise EasyXFCallerError('%s.%s is not a known attribute' % (section, k))
if not isinstance(result, basestring):
break
# synonym
old_k = k
k = result
else:
raise EasyXFAuthorError('Attempt to define synonym of synonym (%r: %r)' % (old_k, result))
value_info = result
if not isinstance(value_info, list):
value_info = [value_info]
for value_rule in value_info:
if isinstance(value_rule, dict):
# dict maps strings to integer field values
vl = v.lower().replace('-', '_')
if vl in value_rule:
value = value_rule[vl]
break
elif callable(value_rule):
value = value_rule(v)
if value is not None:
break
else:
raise EasyXFAuthorError("unknown value rule for attribute %r: %r" % (k, value_rule))
else:
raise EasyXFCallerError("unexpected value %r for %s.%s" % (v, section, k))
try:
orig = getattr(section_obj, k)
except AttributeError:
raise EasyXFAuthorError('%s.%s in dictionary but not in supplied object' % (section, k))
if debug: print("+++ %s.%s = %r # %s; was %r" % (section, k, value, v, orig))
setattr(section_obj, k, value) def easyxf(strg_to_parse="", num_format_str=None,
field_sep=",", line_sep=";", intro_sep=":", esc_char="\\", debug=False):
"""
This function is used to create and configure
:class:`XFStyle` objects for use with (for example) the
:meth:`Worksheet.write` method.
It takes a string to be parsed to obtain attribute values for
:class:`Alignment`, :class:`Borders`, :class:`Font`, :class:`Pattern` and
:class:`Protection` objects.
Refer to the examples in the file `examples/xlwt_easyxf_simple_demo.py`
and to the `xf_dict` dictionary in :mod:`xlwt.Style`.
Various synonyms including color/colour, center/centre and gray/grey are
allowed. Case is irrelevant (except maybe in font names). ``-`` may be used
instead of ``_``.
Example: ``font: bold on; align: wrap on, vert centre, horiz center``
:param num_format_str:
To get the "number format string" of an existing
cell whose format you want to reproduce, select the cell and click on
Format/Cells/Number/Custom. Otherwise, refer to Excel help.
Examples: ``"#,##0.00"``, ``"dd/mm/yyyy"``
:return: An :class:`XFstyle` object.
"""
xfobj = XFStyle()
if num_format_str is not None:
xfobj.num_format_str = num_format_str
if strg_to_parse:
_parse_strg_to_obj(strg_to_parse, xfobj, xf_dict,
field_sep=field_sep, line_sep=line_sep, intro_sep=intro_sep, esc_char=esc_char, debug=debug)
return xfobj def easyfont(strg_to_parse="", field_sep=",", esc_char="\\", debug=False):
xfobj = XFStyle()
if strg_to_parse:
_parse_strg_to_obj("font: " + strg_to_parse, xfobj, xf_dict,
field_sep=field_sep, line_sep=";", intro_sep=":", esc_char=esc_char, debug=debug)
return xfobj.font
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