Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
Python and Tcl - public course schedule [here]
Private courses on your site - see [here]
Please ask about maintenance training for Perl, PHP, Lua, etc
 
fill and expand on Tcl/Tk pack command

pack .this .that -expand true -fill both

Why are there two different options expand and fill? Are they both needed?

expand causes a widget to expand to fill the space available as a window is stretched, and fill causes a widget to be filled to the cell so that it lines up with other widgets.

In order to show you the difference graphically, I wrote this demonstration program:

button .this -text "this" -command exit
button .that -text "Something unthis" -command exit
 
if {$argv == 1} {
  pack .this .that
  puts stderr "Neither fill nor expand"
  # small buttons in one side of window
} elseif {$argv == 2} {
  pack .this .that -fill both
  puts stderr "No expand but with fill"
  # button widths match
} elseif {$argv == 3} {
  pack .this .that -expand true
  puts stderr "No fill but with expand"
  # buttons distributed through window
} elseif {$argv == 4} {
  pack .this .that -expand true -fill both
  puts stderr "Both fill and expand"
  # buttons expanded to truely fill window
} else {
  puts stderr "Usage: $argv0 \[1|2|3|4\]"
  exit
}


Neither, and just "expand" ...

Neither pack nor fill was used on this geometry manager expand but no fill on a tk pack geometry manager

"fill", and both ...
Geometry manager - with pack and fill both fill and expand on a pack geometry manager
(written 2007-12-13)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
T218 - Tcl/Tk - Geometry Managers
  [1340] Tk locks up - 100% c.p.u. on a simple program (Tcl, Perl, Python) - (2007-09-09)
  [1335] Expanding a grid - Tcl/Tk - (2007-09-07)
  [787] Tk - laying out your GUI with frames, pack and grid - (2006-06-30)
  [445] Sticky news - (2005-09-15)
  [212] Tcl/Tk (wish) Grid layout example - (2005-02-12)


Back to
Curley brackets v double quotes - Tcl, Tk, Expect
Previous and next
or
Horse's mouth home
Forward to
Cliff Lift simulator- Lynton to Lynmouth - in Tcl/Tk
Some other Articles
Using Tcl/Tk resource files for flexible applications
Making a variable dynamically visible in a Tcl/Tk GUI
The Horse goes on and on
Cliff Lift simulator- Lynton to Lynmouth - in Tcl/Tk
fill and expand on Tcl/Tk pack command
Curley brackets v double quotes - Tcl, Tk, Expect
Lexical v Arithemetic testing, Bash and Perl
stdout v stderr (Tcl, Perl, Shell)
Effective Java training - the bootcamp approach
Perl, PHP, Python, Tcl, Linux, MySQL, Ruby courses ...
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2019: 404 The Spa • Melksham, Wiltshire • United Kingdom • SN12 6QL
PH: 01225 708225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/1470_fil ... mmand.html • PAGE BUILT: Sat May 27 16:49:10 2017 • BUILD SYSTEM: WomanWithCat