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###############################################################################
#
# Styles - A class for writing the Excel XLSX Worksheet file.
#
# SPDX-License-Identifier: BSD-2-Clause
# Copyright 2013-2023, John McNamara, jmcnamara@cpan.org
#
# Package imports.
from . import xmlwriter
class Styles(xmlwriter.XMLwriter):
"""
A class for writing the Excel XLSX Styles file.
"""
###########################################################################
#
# Public API.
#
###########################################################################
def __init__(self):
"""
Constructor.
"""
super(Styles, self).__init__()
self.xf_formats = []
self.palette = []
self.font_count = 0
self.num_formats = []
self.border_count = 0
self.fill_count = 0
self.custom_colors = []
self.dxf_formats = []
self.has_hyperlink = False
self.hyperlink_font_id = 0
self.has_comments = False
###########################################################################
#
# Private API.
#
###########################################################################
def _assemble_xml_file(self):
# Assemble and write the XML file.
# Write the XML declaration.
self._xml_declaration()
# Add the style sheet.
self._write_style_sheet()
# Write the number formats.
self._write_num_fmts()
# Write the fonts.
self._write_fonts()
# Write the fills.
self._write_fills()
# Write the borders element.
self._write_borders()
# Write the cellStyleXfs element.
self._write_cell_style_xfs()
# Write the cellXfs element.
self._write_cell_xfs()
# Write the cellStyles element.
self._write_cell_styles()
# Write the dxfs element.
self._write_dxfs()
# Write the tableStyles element.
self._write_table_styles()
# Write the colors element.
self._write_colors()
# Close the style sheet tag.
self._xml_end_tag("styleSheet")
# Close the file.
self._xml_close()
def _set_style_properties(self, properties):
# Pass in the Format objects and other properties used in the styles.
self.xf_formats = properties[0]
self.palette = properties[1]
self.font_count = properties[2]
self.num_formats = properties[3]
self.border_count = properties[4]
self.fill_count = properties[5]
self.custom_colors = properties[6]
self.dxf_formats = properties[7]
self.has_comments = properties[8]
def _get_palette_color(self, color):
# Special handling for automatic color.
if color == "Automatic":
return color
# Convert the RGB color.
if color[0] == "#":
color = color[1:]
return "FF" + color.upper()
###########################################################################
#
# XML methods.
#
###########################################################################
def _write_style_sheet(self):
# Write the <styleSheet> element.
xmlns = "http://schemas.openxmlformats.org/spreadsheetml/2006/main"
attributes = [("xmlns", xmlns)]
self._xml_start_tag("styleSheet", attributes)
def _write_num_fmts(self):
# Write the <numFmts> element.
if not self.num_formats:
return
attributes = [("count", len(self.num_formats))]
self._xml_start_tag("numFmts", attributes)
# Write the numFmts elements.
for index, num_format in enumerate(self.num_formats, 164):
self._write_num_fmt(index, num_format)
self._xml_end_tag("numFmts")
def _write_num_fmt(self, num_fmt_id, format_code):
# Write the <numFmt> element.
format_codes = {
0: "General",
1: "0",
2: "0.00",
3: "#,##0",
4: "#,##0.00",
5: "($#,##0_);($#,##0)",
6: "($#,##0_);[Red]($#,##0)",
7: "($#,##0.00_);($#,##0.00)",
8: "($#,##0.00_);[Red]($#,##0.00)",
9: "0%",
10: "0.00%",
11: "0.00E+00",
12: "# ?/?",
13: "# ??/??",
14: "m/d/yy",
15: "d-mmm-yy",
16: "d-mmm",
17: "mmm-yy",
18: "h:mm AM/PM",
19: "h:mm:ss AM/PM",
20: "h:mm",
21: "h:mm:ss",
22: "m/d/yy h:mm",
37: "(#,##0_);(#,##0)",
38: "(#,##0_);[Red](#,##0)",
39: "(#,##0.00_);(#,##0.00)",
40: "(#,##0.00_);[Red](#,##0.00)",
41: '_(* #,##0_);_(* (#,##0);_(* "-"_);_(_)',
42: '_($* #,##0_);_($* (#,##0);_($* "-"_);_(_)',
43: '_(* #,##0.00_);_(* (#,##0.00);_(* "-"??_);_(_)',
44: '_($* #,##0.00_);_($* (#,##0.00);_($* "-"??_);_(_)',
45: "mm:ss",
46: "[h]:mm:ss",
47: "mm:ss.0",
48: "##0.0E+0",
49: "@",
}
# Set the format code for built-in number formats.
if num_fmt_id < 164:
if num_fmt_id in format_codes:
format_code = format_codes[num_fmt_id]
else:
format_code = "General"
attributes = [
("numFmtId", num_fmt_id),
("formatCode", format_code),
]
self._xml_empty_tag("numFmt", attributes)
def _write_fonts(self):
# Write the <fonts> element.
if self.has_comments:
# Add extra font for comments.
attributes = [("count", self.font_count + 1)]
else:
attributes = [("count", self.font_count)]
self._xml_start_tag("fonts", attributes)
# Write the font elements for xf_format objects that have them.
for xf_format in self.xf_formats:
if xf_format.has_font:
self._write_font(xf_format)
if self.has_comments:
self._write_comment_font()
self._xml_end_tag("fonts")
def _write_font(self, xf_format, is_dxf_format=False):
# Write the <font> element.
self._xml_start_tag("font")
# The condense and extend elements are mainly used in dxf formats.
if xf_format.font_condense:
self._write_condense()
if xf_format.font_extend:
self._write_extend()
if xf_format.bold:
self._xml_empty_tag("b")
if xf_format.italic:
self._xml_empty_tag("i")
if xf_format.font_strikeout:
self._xml_empty_tag("strike")
if xf_format.font_outline:
self._xml_empty_tag("outline")
if xf_format.font_shadow:
self._xml_empty_tag("shadow")
# Handle the underline variants.
if xf_format.underline:
self._write_underline(xf_format.underline)
if xf_format.font_script == 1:
self._write_vert_align("superscript")
if xf_format.font_script == 2:
self._write_vert_align("subscript")
if not is_dxf_format:
self._xml_empty_tag("sz", [("val", xf_format.font_size)])
if xf_format.theme == -1:
# Ignore for excel2003_style.
pass
elif xf_format.theme:
self._write_color("theme", xf_format.theme)
elif xf_format.color_indexed:
self._write_color("indexed", xf_format.color_indexed)
elif xf_format.font_color:
color = self._get_palette_color(xf_format.font_color)
if color != "Automatic":
self._write_color("rgb", color)
elif not is_dxf_format:
self._write_color("theme", 1)
if not is_dxf_format:
self._xml_empty_tag("name", [("val", xf_format.font_name)])
if xf_format.font_family:
self._xml_empty_tag("family", [("val", xf_format.font_family)])
if xf_format.font_charset:
self._xml_empty_tag("charset", [("val", xf_format.font_charset)])
if xf_format.font_name == "Calibri" and not xf_format.hyperlink:
self._xml_empty_tag("scheme", [("val", xf_format.font_scheme)])
if xf_format.hyperlink:
self.has_hyperlink = True
if self.hyperlink_font_id == 0:
self.hyperlink_font_id = xf_format.font_index
self._xml_end_tag("font")
def _write_comment_font(self):
# Write the <font> element for comments.
self._xml_start_tag("font")
self._xml_empty_tag("sz", [("val", 8)])
self._write_color("indexed", 81)
self._xml_empty_tag("name", [("val", "Tahoma")])
self._xml_empty_tag("family", [("val", 2)])
self._xml_end_tag("font")
def _write_underline(self, underline):
# Write the underline font element.
if underline == 2:
attributes = [("val", "double")]
elif underline == 33:
attributes = [("val", "singleAccounting")]
elif underline == 34:
attributes = [("val", "doubleAccounting")]
else:
# Default to single underline.
attributes = []
self._xml_empty_tag("u", attributes)
def _write_vert_align(self, val):
# Write the <vertAlign> font sub-element.
attributes = [("val", val)]
self._xml_empty_tag("vertAlign", attributes)
def _write_color(self, name, value):
# Write the <color> element.
attributes = [(name, value)]
self._xml_empty_tag("color", attributes)
def _write_fills(self):
# Write the <fills> element.
attributes = [("count", self.fill_count)]
self._xml_start_tag("fills", attributes)
# Write the default fill element.
self._write_default_fill("none")
self._write_default_fill("gray125")
# Write the fill elements for xf_format objects that have them.
for xf_format in self.xf_formats:
if xf_format.has_fill:
self._write_fill(xf_format)
self._xml_end_tag("fills")
def _write_default_fill(self, pattern_type):
# Write the <fill> element for the default fills.
self._xml_start_tag("fill")
self._xml_empty_tag("patternFill", [("patternType", pattern_type)])
self._xml_end_tag("fill")
def _write_fill(self, xf_format, is_dxf_format=False):
# Write the <fill> element.
pattern = xf_format.pattern
bg_color = xf_format.bg_color
fg_color = xf_format.fg_color
# Colors for dxf formats are handled differently from normal formats
# since the normal xf_format reverses the meaning of BG and FG for
# solid fills.
if is_dxf_format:
bg_color = xf_format.dxf_bg_color
fg_color = xf_format.dxf_fg_color
patterns = (
"none",
"solid",
"mediumGray",
"darkGray",
"lightGray",
"darkHorizontal",
"darkVertical",
"darkDown",
"darkUp",
"darkGrid",
"darkTrellis",
"lightHorizontal",
"lightVertical",
"lightDown",
"lightUp",
"lightGrid",
"lightTrellis",
"gray125",
"gray0625",
)
# Special handling for pattern only case.
if not fg_color and not bg_color and patterns[pattern]:
self._write_default_fill(patterns[pattern])
return
self._xml_start_tag("fill")
# The "none" pattern is handled differently for dxf formats.
if is_dxf_format and pattern <= 1:
self._xml_start_tag("patternFill")
else:
self._xml_start_tag("patternFill", [("patternType", patterns[pattern])])
if fg_color:
fg_color = self._get_palette_color(fg_color)
if fg_color != "Automatic":
self._xml_empty_tag("fgColor", [("rgb", fg_color)])
if bg_color:
bg_color = self._get_palette_color(bg_color)
if bg_color != "Automatic":
self._xml_empty_tag("bgColor", [("rgb", bg_color)])
else:
if not is_dxf_format and pattern <= 1:
self._xml_empty_tag("bgColor", [("indexed", 64)])
self._xml_end_tag("patternFill")
self._xml_end_tag("fill")
def _write_borders(self):
# Write the <borders> element.
attributes = [("count", self.border_count)]
self._xml_start_tag("borders", attributes)
# Write the border elements for xf_format objects that have them.
for xf_format in self.xf_formats:
if xf_format.has_border:
self._write_border(xf_format)
self._xml_end_tag("borders")
def _write_border(self, xf_format, is_dxf_format=False):
# Write the <border> element.
attributes = []
# Diagonal borders add attributes to the <border> element.
if xf_format.diag_type == 1:
attributes.append(("diagonalUp", 1))
elif xf_format.diag_type == 2:
attributes.append(("diagonalDown", 1))
elif xf_format.diag_type == 3:
attributes.append(("diagonalUp", 1))
attributes.append(("diagonalDown", 1))
# Ensure that a default diag border is set if the diag type is set.
if xf_format.diag_type and not xf_format.diag_border:
xf_format.diag_border = 1
# Write the start border tag.
self._xml_start_tag("border", attributes)
# Write the <border> sub elements.
self._write_sub_border("left", xf_format.left, xf_format.left_color)
self._write_sub_border("right", xf_format.right, xf_format.right_color)
self._write_sub_border("top", xf_format.top, xf_format.top_color)
self._write_sub_border("bottom", xf_format.bottom, xf_format.bottom_color)
# Condition DXF formats don't allow diagonal borders.
if not is_dxf_format:
self._write_sub_border(
"diagonal", xf_format.diag_border, xf_format.diag_color
)
if is_dxf_format:
self._write_sub_border("vertical", None, None)
self._write_sub_border("horizontal", None, None)
self._xml_end_tag("border")
def _write_sub_border(self, border_type, style, color):
# Write the <border> sub elements such as <right>, <top>, etc.
attributes = []
if not style:
self._xml_empty_tag(border_type)
return
border_styles = (
"none",
"thin",
"medium",
"dashed",
"dotted",
"thick",
"double",
"hair",
"mediumDashed",
"dashDot",
"mediumDashDot",
"dashDotDot",
"mediumDashDotDot",
"slantDashDot",
)
attributes.append(("style", border_styles[style]))
self._xml_start_tag(border_type, attributes)
if color and color != "Automatic":
color = self._get_palette_color(color)
self._xml_empty_tag("color", [("rgb", color)])
else:
self._xml_empty_tag("color", [("auto", 1)])
self._xml_end_tag(border_type)
def _write_cell_style_xfs(self):
# Write the <cellStyleXfs> element.
count = 1
if self.has_hyperlink:
count = 2
attributes = [("count", count)]
self._xml_start_tag("cellStyleXfs", attributes)
self._write_style_xf()
if self.has_hyperlink:
self._write_style_xf(True, self.hyperlink_font_id)
self._xml_end_tag("cellStyleXfs")
def _write_cell_xfs(self):
# Write the <cellXfs> element.
formats = self.xf_formats
# Workaround for when the last xf_format is used for the comment font
# and shouldn't be used for cellXfs.
last_format = formats[-1]
if last_format.font_only:
formats.pop()
attributes = [("count", len(formats))]
self._xml_start_tag("cellXfs", attributes)
# Write the xf elements.
for xf_format in formats:
self._write_xf(xf_format)
self._xml_end_tag("cellXfs")
def _write_style_xf(self, has_hyperlink=False, font_id=0):
# Write the style <xf> element.
num_fmt_id = 0
fill_id = 0
border_id = 0
attributes = [
("numFmtId", num_fmt_id),
("fontId", font_id),
("fillId", fill_id),
("borderId", border_id),
]
if has_hyperlink:
attributes.append(("applyNumberFormat", 0))
attributes.append(("applyFill", 0))
attributes.append(("applyBorder", 0))
attributes.append(("applyAlignment", 0))
attributes.append(("applyProtection", 0))
self._xml_start_tag("xf", attributes)
self._xml_empty_tag("alignment", [("vertical", "top")])
self._xml_empty_tag("protection", [("locked", 0)])
self._xml_end_tag("xf")
else:
self._xml_empty_tag("xf", attributes)
def _write_xf(self, xf_format):
# Write the <xf> element.
num_fmt_id = xf_format.num_format_index
font_id = xf_format.font_index
fill_id = xf_format.fill_index
border_id = xf_format.border_index
xf_id = xf_format.xf_id
has_align = 0
has_protect = 0
attributes = [
("numFmtId", num_fmt_id),
("fontId", font_id),
("fillId", fill_id),
("borderId", border_id),
("xfId", xf_id),
]
if xf_format.quote_prefix:
attributes.append(("quotePrefix", 1))
if xf_format.num_format_index > 0:
attributes.append(("applyNumberFormat", 1))
# Add applyFont attribute if XF format uses a font element.
if xf_format.font_index > 0 and not xf_format.hyperlink:
attributes.append(("applyFont", 1))
# Add applyFill attribute if XF format uses a fill element.
if xf_format.fill_index > 0:
attributes.append(("applyFill", 1))
# Add applyBorder attribute if XF format uses a border element.
if xf_format.border_index > 0:
attributes.append(("applyBorder", 1))
# Check if XF format has alignment properties set.
(apply_align, align) = xf_format._get_align_properties()
# Check if an alignment sub-element should be written.
if apply_align and align:
has_align = 1
# We can also have applyAlignment without a sub-element.
if apply_align or xf_format.hyperlink:
attributes.append(("applyAlignment", 1))
# Check for cell protection properties.
protection = xf_format._get_protection_properties()
if protection or xf_format.hyperlink:
attributes.append(("applyProtection", 1))
if not xf_format.hyperlink:
has_protect = 1
# Write XF with sub-elements if required.
if has_align or has_protect:
self._xml_start_tag("xf", attributes)
if has_align:
self._xml_empty_tag("alignment", align)
if has_protect:
self._xml_empty_tag("protection", protection)
self._xml_end_tag("xf")
else:
self._xml_empty_tag("xf", attributes)
def _write_cell_styles(self):
# Write the <cellStyles> element.
count = 1
if self.has_hyperlink:
count = 2
attributes = [("count", count)]
self._xml_start_tag("cellStyles", attributes)
if self.has_hyperlink:
self._write_cell_style("Hyperlink", 1, 8)
self._write_cell_style()
self._xml_end_tag("cellStyles")
def _write_cell_style(self, name="Normal", xf_id=0, builtin_id=0):
# Write the <cellStyle> element.
attributes = [
("name", name),
("xfId", xf_id),
("builtinId", builtin_id),
]
self._xml_empty_tag("cellStyle", attributes)
def _write_dxfs(self):
# Write the <dxfs> element.
formats = self.dxf_formats
count = len(formats)
attributes = [("count", len(formats))]
if count:
self._xml_start_tag("dxfs", attributes)
# Write the font elements for xf_format objects that have them.
for xf_format in self.dxf_formats:
self._xml_start_tag("dxf")
if xf_format.has_dxf_font:
self._write_font(xf_format, True)
if xf_format.num_format_index:
self._write_num_fmt(
xf_format.num_format_index, xf_format.num_format
)
if xf_format.has_dxf_fill:
self._write_fill(xf_format, True)
if xf_format.has_dxf_border:
self._write_border(xf_format, True)
self._xml_end_tag("dxf")
self._xml_end_tag("dxfs")
else:
self._xml_empty_tag("dxfs", attributes)
def _write_table_styles(self):
# Write the <tableStyles> element.
count = 0
default_table_style = "TableStyleMedium9"
default_pivot_style = "PivotStyleLight16"
attributes = [
("count", count),
("defaultTableStyle", default_table_style),
("defaultPivotStyle", default_pivot_style),
]
self._xml_empty_tag("tableStyles", attributes)
def _write_colors(self):
# Write the <colors> element.
custom_colors = self.custom_colors
if not custom_colors:
return
self._xml_start_tag("colors")
self._write_mru_colors(custom_colors)
self._xml_end_tag("colors")
def _write_mru_colors(self, custom_colors):
# Write the <mruColors> element for the most recently used colors.
# Write the custom custom_colors in reverse order.
custom_colors.reverse()
# Limit the mruColors to the last 10.
if len(custom_colors) > 10:
custom_colors = custom_colors[0:10]
self._xml_start_tag("mruColors")
# Write the custom custom_colors in reverse order.
for color in custom_colors:
self._write_color("rgb", color)
self._xml_end_tag("mruColors")
def _write_condense(self):
# Write the <condense> element.
attributes = [("val", 0)]
self._xml_empty_tag("condense", attributes)
def _write_extend(self):
# Write the <extend> element.
attributes = [("val", 0)]
self._xml_empty_tag("extend", attributes)