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Re: Tk label width to fit in text area

by kcott (Chancellor)
on Sep 12, 2017 at 09:15 UTC ( #1199178=note: print w/replies, xml ) Need Help??


in reply to Tk label width to fit in text area

It would be most useful if you provided an SSCCE that shed some light on the following:

  • What do you mean by "screen size"? See Tk::Widget. This has a number of *width and *height methods. The units of the values returned are either in pixels or millimetres.
  • What do you mean by "text area"? Tk::Text? This has a -width option, which you can query. The units of the values returned are in characters.
  • What do you mean by "label"? Tk::Label? This has a -width option, which you can query. The units of the values returned are dependent upon whatever is displayed in the widget.
  • What geometry manager are you using for your "text area" widget? Tk::pack? Tk::grid? Other?

If you're using Tk::Text and Tk::Label, and the labels only display text, and all of those are using the same font, and your geometry management is set up such that Tk::Text resizes when its parent does, you could possibly bind a <Configure> event (see Tk::bind) to a callback that sets the width of Tk::Label widgets to be one quarter that of the Tk::Text widget.

That's the simplest scenario. You may need additional calculations if there's padding or spacing involved. If the fonts are different, you'll need additional calculations to handle that: see Tk::Font.

— Ken

Replies are listed 'Best First'.
Re^2: Tk label width to fit in text area
by Anonymous Monk on Sep 12, 2017 at 09:49 UTC
    Ken,i really appreciate your reply in detail, let me revert back on this. Thanks..kiran pawar

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