archie/tk3.6/library/dialog.tcl
2024-05-27 16:13:40 +02:00

116 lines
4.0 KiB
Tcl

# dialog.tcl --
#
# This file defines the procedure tk_dialog, which creates a dialog
# box containing a bitmap, a message, and one or more buttons.
#
# $Header: /user6/ouster/wish/library/RCS/dialog.tcl,v 1.4 93/08/16 16:59:52 ouster Exp $ SPRITE (Berkeley)
#
# Copyright (c) 1992-1993 The Regents of the University of California.
# All rights reserved.
#
# Permission is hereby granted, without written agreement and without
# license or royalty fees, to use, copy, modify, and distribute this
# software and its documentation for any purpose, provided that the
# above copyright notice and the following two paragraphs appear in
# all copies of this software.
#
# IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
# OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
# CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
# ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
# PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#
#
# tk_dialog:
#
# This procedure displays a dialog box, waits for a button in the dialog
# to be invoked, then returns the index of the selected button.
#
# Arguments:
# w - Window to use for dialog top-level.
# title - Title to display in dialog's decorative frame.
# text - Message to display in dialog.
# bitmap - Bitmap to display in dialog (empty string means none).
# default - Index of button that is to display the default ring
# (-1 means none).
# args - One or more strings to display in buttons across the
# bottom of the dialog box.
proc tk_dialog {w title text bitmap default args} {
global tk_priv
# 1. Create the top-level window and divide it into top
# and bottom parts.
catch {destroy $w}
toplevel $w -class Dialog
wm title $w $title
wm iconname $w Dialog
frame $w.top -relief raised -bd 1
pack $w.top -side top -fill both
frame $w.bot -relief raised -bd 1
pack $w.bot -side bottom -fill both
# 2. Fill the top part with bitmap and message.
message $w.msg -width 3i -text $text \
-font -Adobe-Times-Medium-R-Normal-*-180-*
pack $w.msg -in $w.top -side right -expand 1 -fill both -padx 5m -pady 5m
if {$bitmap != ""} {
label $w.bitmap -bitmap $bitmap
pack $w.bitmap -in $w.top -side left -padx 5m -pady 5m
}
# 3. Create a row of buttons at the bottom of the dialog.
set i 0
foreach but $args {
button $w.button$i -text $but -command "set tk_priv(button) $i"
if {$i == $default} {
frame $w.default -relief sunken -bd 1
raise $w.button$i $w.default
pack $w.default -in $w.bot -side left -expand 1 -padx 3m -pady 2m
pack $w.button$i -in $w.default -padx 2m -pady 2m \
-ipadx 2m -ipady 1m
bind $w <Return> "$w.button$i flash; set tk_priv(button) $i"
} else {
pack $w.button$i -in $w.bot -side left -expand 1 \
-padx 3m -pady 3m -ipadx 2m -ipady 1m
}
incr i
}
# 4. Withdraw the window, then update all the geometry information
# so we know how big it wants to be, then center the window in the
# display and de-iconify it.
wm withdraw $w
update idletasks
set x [expr [winfo screenwidth $w]/2 - [winfo reqwidth $w]/2 \
- [winfo vrootx [winfo parent $w]]]
set y [expr [winfo screenheight $w]/2 - [winfo reqheight $w]/2 \
- [winfo vrooty [winfo parent $w]]]
wm geom $w +$x+$y
wm deiconify $w
# 5. Set a grab and claim the focus too.
set oldFocus [focus]
grab $w
focus $w
# 6. Wait for the user to respond, then restore the focus and
# return the index of the selected button.
tkwait variable tk_priv(button)
destroy $w
focus $oldFocus
return $tk_priv(button)
}