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Optimize _add_column

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DevilXD
2022-04-18 13:23:53 +02:00
parent ec0781acae
commit 3fb8a3e089
1 changed files with 17 additions and 16 deletions
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33
gui.py
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@@ -622,24 +622,25 @@ class ChannelList:
width_template: str | None = None,
):
table = self._table
# we need to save the column settings and headings before modifying the columns...
columns: tuple[str, ...] = table.cget("columns") or ()
column_settings: dict[str, tuple[str, tk._Anchor, int, int]] = {}
for s_cid in columns:
s_column = table.column(s_cid)
assert s_column is not None
s_heading = table.heading(s_cid)
assert s_heading is not None
column_settings[s_cid] = (
s_heading["text"], s_heading["anchor"], s_column["width"], s_column["minwidth"]
)
# ..., then add the column, but ensure we're not adding the icons column...
# NOTE: we don't do this for the icon column
if cid != "#0":
# we need to save the column settings and headings before modifying the columns...
columns: tuple[str, ...] = table.cget("columns") or ()
column_settings: dict[str, tuple[str, tk._Anchor, int, int]] = {}
for s_cid in columns:
s_column = table.column(s_cid)
assert s_column is not None
s_heading = table.heading(s_cid)
assert s_heading is not None
column_settings[s_cid] = (
s_heading["text"], s_heading["anchor"], s_column["width"], s_column["minwidth"]
)
# ..., then add the column
table.config(columns=columns + (cid,))
# ..., and then restore column settings and headings afterwards
for s_cid, (s_name, s_anchor, s_width, s_minwidth) in column_settings.items():
table.heading(s_cid, text=s_name, anchor=s_anchor)
table.column(s_cid, minwidth=s_minwidth, width=s_width, stretch=False)
# ..., and then restore column settings and headings afterwards
for s_cid, (s_name, s_anchor, s_width, s_minwidth) in column_settings.items():
table.heading(s_cid, text=s_name, anchor=s_anchor)
table.column(s_cid, minwidth=s_minwidth, width=s_width, stretch=False)
# set heading and column settings for the new column
if width_template is not None:
width = self._measure(width_template)