# bgerror.tcl --
#
# This file contains a default version of the bgerror procedure. It
# posts a dialog box with the error message and gives the user a chance
# to see a more detailed stack trace.
#
# SCCS: @(#) bgerror.tcl 1.9 96/05/02 10:17:11
#
# Copyright (c) 1992-1994 The Regents of the University of California.
# Copyright (c) 1994-1995 Sun Microsystems, Inc.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
# The following declaration servers no purpose other than to generate
# a tclIndex entry for "tkerror". Since tkerror and bgerror are hard-wired
# by the Tcl interpreter to be synonyms, the definition of tkerror is
# immediately overridden when bgerror is defined.
proc tkerror {} {}
# bgerror --
# This is the default version of bgerror. It posts a dialog box containing
# the error message and gives the user a chance to ask to see a stack
# trace.
# Arguments:
# err - The error message.
proc bgerror err {
global errorInfo
set info $errorInfo
set button [tk_dialog .bgerrorDialog "Error in Tcl Script" \
"Error: $err" error 0 OK "Skip Messages" "Stack Trace"]
if {$button == 0} {
return
} elseif {$button == 1} {
return -code break
}
set w .bgerrorTrace
catch {destroy $w}
toplevel $w -class ErrorTrace
wm minsize $w 1 1
wm title $w "Stack Trace for Error"
wm iconname $w "Stack Trace"
button $w.ok -text OK -command "destroy $w"
text $w.text -relief sunken -bd 2 -yscrollcommand "$w.scroll set" \
-setgrid true -width 60 -height 20
scrollbar $w.scroll -relief sunken -command "$w.text yview"
pack $w.ok -side bottom -padx 3m -pady 2m
pack $w.scroll -side right -fill y
pack $w.text -side left -expand yes -fill both
$w.text insert 0.0 $info
$w.text mark set insert 0.0
# Center the window on the screen.
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
# Be sure to release any grabs that might be present on the
# screen, since they could make it impossible for the user
# to interact with the stack trace.
if {[grab current .] != ""} {
grab release [grab current .]
}
}