Dear Monks,
I want to write a subroutine for Tk::Canvas so that when it is called it will enable the user to view all elements of a Tk
::Canvas which would be something like the ViewAll() function of Tk::AbstractCanvas or something better (I don't want to use Tk::AbstractCanvas for some reasons...). The code I have written is something like this :
sub fit_to_canvas
{
my ($xt0,$yt0,$xt1,$yt1) = $_canvas{0}->bbox('all');
if($xt0 != "")
{
my ($x0,$y0,$x1,$y1) = $_canvas{0}->bbox('all');
$_canvas{0}->xviewMoveto($x0);
$_canvas{0}->yviewMoveto($y1);
$_canvas{0}->configure(-scrollregion => [$x0,$y0,$x1,$y1]);
}## end of if not empty canvas
}
But it does not seen to work properly and do what I need....
Any help will be highly appreciated in this regard..
Thanks,
Kuntal
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.