Here is information on Iwidgets implementation:
Docs can be found at http://incrtcl.sourceforge.net/iwidgets/iwidgets/panedwindow.html (the example provided may be outdated and fail to work with the latest Tcl/Tk) and http://purl.org/tcl/home/man/iwidgets3.0/panedwindow.n.htmlSome users with iwidget panedwindows in their apps find that, when moving to Tk 8.4 , their applications are now generating syntax errors. This is because the Tk panedwindow and iwidgets panedwindow widgets use the same class - however, they don't have the same bindings.[Tom Silva] writes on the itcl mailing list: I use this code-fix in panedwindow.itk, in the Panedwindow constructor, down near the bottom (just before "eval itk_initialize $args").
set btags [bindtags $itk_component(hull)]
if {[set ndx [lsearch -exact $btags Panedwindow]] >= 0} {
bindtags $itk_component(hull) [lreplace $btags $ndx $ndx IPanedwindow]
}Prompted by an observation by Bryan Oakley that, whereas
[winfo manager $w] forget $wdoes what one want for $w-s managed by pack, place, and grid, but not for panedwindow, Joe English offered this "interesting solution":
set scratch [winfo parent $w].__temp__
pack $w in $scratch
pack forget $w
destroy $scratch RS 2006-01-29: Hacking a Tk panedwindow with eTcl on my phone, I wasn't sure whether to arrange panes horizontally or vertically. Well, thought I, let the user decide - took me 4 lines of code, plus the demo below. Right-click on the sash to toggle:
proc toggle'orientation w {
$w config -ori [expr {[$w cget -ori] eq "horizontal"? "vert": "hori"}]
}
#-- Demo and usage example:
pack [panedwindow .p]
.p add [label .p.1 -text Hello]
.p add [label .p.2 -text world]
bind .p <3> {toggle'orientation %W}SeS (23-10-2011):I have been using the iwidgets panedwindow for some time now and it is also provided inside tG² since the Layout Editor's early conception/implementation. I have encountered a behaviour which is only observed in the iwidgets implementation of Panedwindow. It is the constant flickering of the child widgets of a panedwindow if the panedwindow is packed and the toplevel geometry is changed.See for yourself:Using Windows Vista, using wish.exe with $tcl_version 8.4, Iwidgets 4.0.2
package require Iwidgets iwidgets::panedwindow .pw -width 200 -height 200 pack .pw .pw add [frame .pane0] .pw add [frame .pane1] .pw add [frame .pane2] .pw add [frame .pane3] pack [button .pw.pane0.b -text test] -expand 1 -fill x pack [button .pw.pane1.b -text test] -expand 1 -fill x pack [button .pw.pane2.b -text test] -expand 1 -fill x pack [button .pw.pane3.b -text test] -expand 1 -fill xNow, resize the toplevel and pay close attention to the buttons we just created...the flickering becomes more severe with more embedded widgets. Do the same with the ttk panedwindow implementation in a fresh 'wish' and see the diff's:
panedwindow .pw -width 200 -height 200 -orient vertical pack .pw frame .pw.pane0; .pw add .pw.pane0 frame .pw.pane1; .pw add .pw.pane1 frame .pw.pane2; .pw add .pw.pane2 frame .pw.pane3; .pw add .pw.pane3 pack [button .pw.pane0.b -text test] -expand 1 -fill x pack [button .pw.pane1.b -text test] -expand 1 -fill x pack [button .pw.pane2.b -text test] -expand 1 -fill x pack [button .pw.pane3.b -text test] -expand 1 -fill xFor some people, this flickering might be a minor thing, imo it is important to reduce such strange displaying just to provide the user a cool and relaxed GUI and if there is a chance to get rid of it I will certainly persuit it. One of the main reasons I recently added the ttk panedwindow implementation also to tG²'s layout editor. Should have done that in the first place, anyway, better late than never they say.
SeS (23-10-2011 - 10:27am CET): BTW, this observation will change from OS to OS and from PC to PC. Using Win7 & a different PC & monitor gives me almost unnoticable differences between the iwidgets & ttk panedwindow...
| Category Widget | Category Command, a part of Tk and incr Widgets |
|---|