Tk::Checkbox - Yet Another Checkbutton widget (with a sizable marker)
use Tk; use Tk::Checkbox; my $var = 'Up'; my $mw = MainWindow->new(); my $cb1 = $mw->Checkbox ( -variable => \$var, -command => \&test_cb, -onvalue => 'Up', -offvalue => 'Down', #-noinitialcallback => '1', #-size => '8', )->pack; Tk::MainLoop; sub test_cb { print "test_cb called with [@_], \$var = >$var<\n"; }
Another check button style widget that uses a check mark in a fixed box. Useful as a boolean field. It's based on Damion K. Wilson's version from Tk-DKW-0.03, suitable for perl Tk800.x (developed with Tk800.024).
You can tie a scalar-value to the Checkbox widget, enable/disable it, assign a callback, that is invoked each time the Checkbox is changed, as well as set ON- and OFF-values and configure any of the options understood by Tk::Frame(s) like -relief, -bg, ... .
'set($newvalue)' allows to set/reset the the widget methodically, $newvalue must be either 'onvalue' or 'offvalue'.
You should prefer interacting with the widget via a variable.
'-variable' allows to specify a reference to a scalar-value. Each time the widget changes by user interaction, the variable is changed too. Every variable change is immediately mapped in the widget too.
'-command' can be used to supply a callback for processing after each change of the Checkbox value.
'-onvalue' can be used to supply a value that is used/returned, if the checkmark is 'checked'. default is '1'.
'-offvalue' is the opposite of 'onvalue', it isused/returned, if the checkmark is 'unchecked'. default is '0'.
'-noinitialcallback' can be used to suppress the invocation of an (assigned) callback, immediate after a (new) variable has been configured with -variable.
'-size' can be used to specify the widget- (and checker) size (default 15 pt)
Michael Krause, KrauseM_AT_gmx_DOT_net
This code may be distributed under the same conditions as Perl.
V2.8 (C) September 2011
To install Tk::DTree, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Tk::DTree
CPAN shell
perl -MCPAN -e shell install Tk::DTree
For more information on module installation, please visit the detailed CPAN module installation guide.