[Tcl-bugs] [ tktoolkit-Bugs-3603077 ] ttk::treeview doesn't update display when tags are changed

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Bugs item #3603077, was opened at 2013-02-01 22:07
Message generated for change (Tracker Item Submitted) made by talvo
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Category: 88. Themed Tk
Group: current: 8.6.0
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Talvo (talvo)
Assigned to: Joe English (jenglish)
Summary: ttk::treeview doesn't update display when tags are changed

Initial Comment:
On Windows, a ttk::treeview's display isn't updated when tags are added are removed - you have to move the cursor into (or out of) the treeview for the display to update. Example:

pack [ttk::treeview .t]
foreach x [list Foo Bar Baz] {
  .t insert {} end -id $x -text $x
}
.t tag configure tagged -foreground yellow -background red
.t tag add tagged Foo
.t tag has tagged Foo

The final command returns 1 as expected, but nothing happens until you move the mouse over the treeview, when suddenly the colors change. Calling [update] doesn't help. 

Setting an option for the widget does cause it to be automatically redrawn, so in my case I'm doing a no-op like
.t configure -cursor [.t cget -cursor]
immediately after changing tags, as a temporary workaround.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=112997&aid=3603077&group_id=12997