in reply to Is there some limit to the max num of widgets in perl tk?

First, I don't know - but 4000 labels? Are you sure you don't want to use a text box for all of that instead? I am sure no one has ever tested Tk to this point, but you may have found a bug or just run into a memory limitation. 4000 labels?
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Re^2: Is there some limit to the max num of widgets in perl tk?
by Eradicatore (Monk) on Nov 21, 2007 at 06:47 UTC
    Well, yes, I should have explained my reason as well. And maybe this is a bad idea. I was going to use them not as actual labels, but instead as a sort of spectrum display. Similar to one used on music players, but my data is not audio in this case. Anyway, I need about 100 on the x axis and 60+ on the y. so that's more than 4000 labels. I did the same thing with buttons and it failed the same exact way. Any suggestions maybe for a different way to have a 60x100 grid of items? I suppose I could do some sort of curses/ascii display, but I was hoping to have it more tk-ish.

    Justin Eltoft

    "If at all god's gaze upon us falls, its with a mischievous grin, look at him" -- Dave Matthews

[reply]
      Well, now that I think about it, I could try vertical progress bars like this: 
      $main_data2_f = $mw->Frame()->pack(-side=>'top');
$vprog = $main_data2_f->ProgressBar(
        -width => 6,
        -length => 400,
        -anchor => 's',
        -from => 0,
        -to => 60,
        -gap => 2,
        -blocks => 60,
        -colors => [0, 'green', 50, 'yellow' , 55, 'red'],
        -variable => \$percent_done
    )->pack(-anchor=>'s');
$percent_done=55;

      [download]
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[d/l]

      What about using Tk::Canvas instead of the labels?

      Best regards,
      perl -e "s>>*F>e=>y)\*martinF)stronat)=>print,print v8.8.8.32.11.32"

[reply]
      TableMatrix?
[reply]
      Eradicatore:

      Update: ...and if I'd learn to read the entire thread before posting, I'd've seen that you already thought of a better hack, and zentara already provided a nice starting point to a nice way to do it. IGNORE THIS POST!

      * UGLY HACK ALERT * If you're offended by hacks, STOP READING NOW!

      I'm no UI guy, so I would cheat with a hack: Instead of making a grid of labels (I assume you're just changing their color to draw the spectrum?), you could make a simple linear array off 100 of them, and simply change their heights. This will let you get the job done with fewer labels, and fewer operations (rather than update 4000 labels, you need only update 100), so you could get a better repetition rate.

      ...roboticus

[reply]

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