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Adding support to pickup class based css rules. #123

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Adding support to pickup class based css rules. #123

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43 changes: 28 additions & 15 deletions dataframe_image/converter/matplotlib_table.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import base64
import io
import textwrap
import re

import cssutils
import numpy as np
Expand Down Expand Up @@ -101,22 +102,34 @@ def parse_row(row):
rowspan = int(el.get("rowspan", 1))
text_align = self.get_text_align(el) or row_align
text = el.text_content().strip()
bg_color = "#ffffff"
fg_color = "#000000"

#check and apply class based rules.
if "class" in el.attrib:
class_names = list(re.split(" |,", el.attrib["class"]))
#classnames in selectors have "." in front of them
class_names = set(map(lambda x: f".{x}", class_names))

for rule in sheet.cssRules:
#selector names can be separated by a "," or a " "
selector_names = set(re.split(" |,", rule.selectorText))
if class_names.intersection(selector_names):
bg_color = rule.style["background-color"]
fg_color = rule.style["color"]
break
#higher precidence to #id based rules.
if "id" in el.attrib:
values.append(
[
text,
bold,
text_align,
get_property(el, "background-color"),
get_property(el, "color"),
rowspan,
colspan,
]
)
else:
values.append(
[text, bold, text_align, "#ffffff", "#000000", rowspan, colspan]
)
_bg = get_property(el, "background-color")
_fg = get_property(el, "color")
bg_color = _bg if _bg else bg_color
fg_color = _fg if _fg else fg_color

#assigning the values to the cell
values.append(
[text, bold, text_align, bg_color, fg_color, rowspan, colspan]
)
# print("Element:", el.attrib, "\nValues:", values)
return values

style = tree.find(".//style")
Expand Down
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