Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things
 
PerlMonks  

Re^7: Question about embedded Tk::Canvas

by kschwab (Priest)
on Nov 20, 2013 at 19:54 UTC ( #1063589=note: print w/ replies, xml ) Need Help??


in reply to Re^6: Question about embedded Tk::Canvas
in thread Question about embedded Tk::Canvas

Looking at your code on github, it's because of this:

my $canvas = $Mainwin->Scrolled('Canvas')->grid; my $real = $canvas->Subwidget("canvas");
Based on your choice of the variable name $real, you seem to already know what the issue is here :) $canvas isn't a 'Canvas'.


Comment on Re^7: Question about embedded Tk::Canvas
Download Code
Re^8: Question about embedded Tk::Canvas
by emilbarton (Scribe) on Nov 20, 2013 at 20:11 UTC
    Hey, I always wondered was real meant in this way.. I think I just copied from TextUndo tricks I had to use somewhere else. Maybe it's not of any use here.
Re^8: Question about embedded Tk::Canvas
by emilbarton (Scribe) on Nov 22, 2013 at 07:04 UTC
    No I'm sorry, removing this workaround doesn't change anything, and I'll have to try your first proposal... In the meantime I found where this comes from: I had experienced key-binding problems in Scrolled TextUndo widgets and could apply with success Zentara's tip given here Re^3: Tk hidden binding, so to be on the safe side, as my canvas is scrolled too, I just applied the same here in prevision of possible key-bindings and problems. Anyway, I must acknowledge I often copy and paste bits of code without always being sure they're appropriate, when it works no further verification is made (shame on me!).

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1063589]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (7)
As of 2015-07-05 04:58 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (60 votes), past polls