Tk Source Code

When you configure the -tabminwidth option of a style, you get a very wrong behaviour of tab layout, with the first tab expanding into the space occupied by the other tabs (which shrink), rather than the other tabs also increasing in size. This cannot possibly be right!

Context link (including images of what is desired and what has been tried to achieve it).

Merged to core-8-6-branch and trunk.

I have proposed a solution in branch bug-308940fff.

Please try and provide feedback.

Possible test script:

package require Tk
ttk::notebook .n -width 640 -height 400
foreach w { aaaaa bbbbb { This is a very long label for a tab} ccccc ddddd } {
  .n add [frame .n.$w] -text "$w" -sticky news
}
pack .n -fill both -expand 1

ttk::style configure TNotebook -mintabwidth 120

No tabs ever disappear anymore (thanks to the patch from Koen Danckaert in [3089640]), and -mintabwidth style option is now correctly honored when it's possible. That is: priority is given to display of all tabs rather than absolutely honoring -mintabwidth (which would make tabs disappear if the containing window is not large enough).

A previous ticket looking at the same (?) issue: [3089640fff].