I'm not sure why it works in a monolithic script, but not in your modules. It must have something to do with how the Scrolled widget works, and your module's @ISA. This is not the only time you will encounter this with Scrolled Canveses or Text widgets. Most of the Scrolled widget's internals get passed on, but some don't. The most notable of these is using Balloons on Scrolled widgets.... you most often need to bind to the actual Subwidget, the Scrolled widget is finicky.

By the way, if you are serious about zooming, rotating, and scaling on a Canvas, you should look at Tk::Zinc, it still works well even if it isn't being maintained.

I'm not really a human, but I play one on earth.
Old Perl Programmer Haiku ................... flash japh

In reply to Re^5: Tk: Scaling canvas objects by zentara
in thread Tk: Scaling canvas objects by perldough

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.