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Revision 1.3: download - view: text, annotated - select for diffs
Tue Aug 8 13:47:35 2000 UTC (23 years, 8 months ago) by albertel
Branches: MAIN
CVS tags: version_2_9_X, version_2_9_99_0, version_2_9_1, version_2_9_0, version_2_8_X, version_2_8_99_1, version_2_8_99_0, version_2_8_2, version_2_8_1, version_2_8_0, version_2_7_X, version_2_7_99_1, version_2_7_99_0, version_2_7_1, version_2_7_0, version_2_6_X, version_2_6_99_1, version_2_6_99_0, version_2_6_3, version_2_6_2, version_2_6_1, version_2_6_0, version_2_5_X, version_2_5_99_1, version_2_5_99_0, version_2_5_2, version_2_5_1, version_2_5_0, version_2_4_X, version_2_4_99_0, version_2_4_2, version_2_4_1, version_2_4_0, version_2_3_X, version_2_3_99_0, version_2_3_2, version_2_3_1, version_2_3_0, version_2_2_X, version_2_2_99_1, version_2_2_99_0, version_2_2_2, version_2_2_1, version_2_2_0, version_2_1_X, version_2_1_99_3, version_2_1_99_2, version_2_1_99_1, version_2_1_99_0, version_2_1_3, version_2_1_2, version_2_1_1, version_2_1_0, version_2_12_X, version_2_11_X, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, version_2_11_3_uiuc, version_2_11_3_msu, version_2_11_3, version_2_11_2_uiuc, version_2_11_2_msu, version_2_11_2_educog, version_2_11_2, version_2_11_1, version_2_11_0_RC3, version_2_11_0_RC2, version_2_11_0_RC1, version_2_11_0, version_2_10_X, version_2_10_1, version_2_10_0_RC2, version_2_10_0_RC1, version_2_10_0, version_2_0_X, version_2_0_99_1, version_2_0_2, version_2_0_1, version_2_0_0, version_1_99_3, version_1_99_2, version_1_99_1_tmcc, version_1_99_1, version_1_99_0_tmcc, version_1_99_0, version_1_3_X, version_1_3_3, version_1_3_2, version_1_3_1, version_1_3_0, version_1_2_X, version_1_2_99_1, version_1_2_99_0, version_1_2_1, version_1_2_0, version_1_1_X, version_1_1_99_5, version_1_1_99_4, version_1_1_99_3, version_1_1_99_2, version_1_1_99_1, version_1_1_99_0, version_1_1_3, version_1_1_2, version_1_1_1, version_1_1_0, version_1_0_99_3, version_1_0_99_2, version_1_0_99_1, version_1_0_99, version_1_0_3, version_1_0_2, version_1_0_1, version_1_0_0, version_0_99_5, version_0_99_4, version_0_99_3, version_0_99_2, version_0_99_1, version_0_99_0, version_0_6_2, version_0_6, version_0_5_1, version_0_5, version_0_4, stable_2002_spring, stable_2002_july, stable_2002_april, stable_2001_fall, release_5-1-3, loncapaMITrelate_1, language_hyphenation_merge, language_hyphenation, conference_2003, bz6209-base, bz6209, STABLE, HEAD, GCI_3, GCI_2, GCI_1, CAPA_5-1-6, CAPA_5-1-5, CAPA_5-1-4_RC1, BZ4492-merge, BZ4492-feature_horizontal_radioresponse, BZ4492-feature_Support_horizontal_radioresponse, BZ4492-Support_horizontal_radioresponse
- corrected address of FSF

#Utilities for Grader. Used for centering dialogues 
#stolen from TkNet.

###############################################################
# TkNet - Utilities Module
# Charlie KEMPSON - charlie@siren.demon.co.uk
# http://public.logica.com/~kempsonc/tknet.htm
# Version 1.1
###############################################################

###############################################################
#
#    Copyright (c) 1995-1996 Charlie Kempson
#
#    This program is free software; you can redistribute it 
#    and/or modify it under the terms of the GNU General 
#    Public License as published by the Free Software 
#    Foundation (version 2 of the License).
#
#    This program is distributed in the hope that it will 
#    be useful, but WITHOUT ANY WARRANTY; without even the 
#    implied warranty of MERCHANTABILITY or FITNESS FOR A 
#    PARTICULAR PURPOSE.  See the GNU General Public License 
#    for more details.
#
#    For a copy of the GNU General Public License, write to the 
#    Free Software Foundation, Inc. 59 Temple Place, Suite 330, 
#    Boston, MA 02111, USA.
###############################################################
###############################################################
# Centre a window on the screen (or parent)
proc Centre_Dialog {window {position ""} {parent ""}} {

   # Withdraw dialog and update all windows
   wm withdraw $window
   update idletasks
   set win_width [winfo reqwidth $window]
   set win_height [winfo reqheight $window]

   # Read the positioning argument (pointer, widget, default)
   switch -glob -- $position {
      p* {
         # place at POINTER (centered is $a == center)
         wm geometry $window +[expr \
            [winfo pointerx $window]-$win_width \
            /2]+[expr [winfo pointery $window]-\
            $win_height/2]
      }
      w* {
         # center about WIDGET $parent
         wm geometry $window +[expr [winfo rootx $parent]+ \
            ([winfo width $parent]-$win_width)/2]+[expr \
            [winfo rooty $parent]+([winfo height \
            $parent]-$win_height)/2]
      }
      default {
         wm geometry $window +[expr ([winfo screenwidth \
            $window]-$win_width) / 2]+[expr ([winfo screenheight \
            $window]- $win_height) / 2]
      }
   }

   # Now show the window
   wm deiconify $window
}
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