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266 lines
8.1 KiB
266 lines
8.1 KiB
# bgerror.tcl --
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#
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# Implementation of the bgerror procedure. It posts a dialog box with
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# the error message and gives the user a chance to see a more detailed
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# stack trace, and possible do something more interesting with that
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# trace (like save it to a log). This is adapted from work done by
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# Donal K. Fellows.
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#
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# Copyright (c) 1998-2000 by Ajuba Solutions.
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# Copyright (c) 2007 by ActiveState Software Inc.
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# Copyright (c) 2007 Daniel A. Steffen <das@users.sourceforge.net>
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# Copyright (c) 2009 Pat Thoyts <patthoyts@users.sourceforge.net>
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namespace eval ::tk::dialog::error {
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namespace import -force ::tk::msgcat::*
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namespace export bgerror
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option add *ErrorDialog.function.text [mc "Save To Log"] \
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widgetDefault
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option add *ErrorDialog.function.command [namespace code SaveToLog]
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option add *ErrorDialog*Label.font TkCaptionFont widgetDefault
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if {[tk windowingsystem] eq "aqua"} {
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option add *ErrorDialog*background systemAlertBackgroundActive \
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widgetDefault
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option add *ErrorDialog*info.text.background white widgetDefault
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option add *ErrorDialog*Button.highlightBackground \
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systemAlertBackgroundActive widgetDefault
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}
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}
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proc ::tk::dialog::error::Return {which code} {
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variable button
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.bgerrorDialog.$which state {active selected focus}
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update idletasks
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after 100
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set button $code
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}
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proc ::tk::dialog::error::Details {} {
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set w .bgerrorDialog
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set caption [option get $w.function text {}]
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set command [option get $w.function command {}]
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if { ($caption eq "") || ($command eq "") } {
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grid forget $w.function
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}
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lappend command [$w.top.info.text get 1.0 end-1c]
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$w.function configure -text $caption -command $command
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grid $w.top.info - -sticky nsew -padx 3m -pady 3m
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}
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proc ::tk::dialog::error::SaveToLog {text} {
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if { $::tcl_platform(platform) eq "windows" } {
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set allFiles *.*
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} else {
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set allFiles *
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}
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set types [list \
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[list [mc "Log Files"] .log] \
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[list [mc "Text Files"] .txt] \
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[list [mc "All Files"] $allFiles] \
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]
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set filename [tk_getSaveFile -title [mc "Select Log File"] \
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-filetypes $types -defaultextension .log -parent .bgerrorDialog]
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if {$filename ne {}} {
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set f [open $filename w]
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puts -nonewline $f $text
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close $f
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}
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return
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}
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proc ::tk::dialog::error::Destroy {w} {
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if {$w eq ".bgerrorDialog"} {
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variable button
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set button -1
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}
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}
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proc ::tk::dialog::error::DeleteByProtocol {} {
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variable button
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set button 1
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}
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proc ::tk::dialog::error::ReturnInDetails w {
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bind $w <Return> {}; # Remove this binding
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$w invoke
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return -code break
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}
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# ::tk::dialog::error::bgerror --
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#
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# This is the default version of bgerror.
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# It tries to execute tkerror, if that fails it posts a dialog box
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# containing the error message and gives the user a chance to ask
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# to see a stack trace.
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#
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# Arguments:
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# err - The error message.
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#
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proc ::tk::dialog::error::bgerror err {
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global errorInfo
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variable button
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set info $errorInfo
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set ret [catch {::tkerror $err} msg];
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if {$ret != 1} {return -code $ret $msg}
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# Ok the application's tkerror either failed or was not found
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# we use the default dialog then :
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set windowingsystem [tk windowingsystem]
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if {$windowingsystem eq "aqua"} {
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set ok [mc Ok]
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} else {
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set ok [mc OK]
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}
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# Truncate the message if it is too wide (>maxLine characters) or
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# too tall (>4 lines). Truncation occurs at the first point at
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# which one of those conditions is met.
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set displayedErr ""
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set lines 0
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set maxLine 45
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foreach line [split $err \n] {
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if { [string length $line] > $maxLine } {
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append displayedErr "[string range $line 0 [expr {$maxLine-3}]]..."
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break
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}
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if { $lines > 4 } {
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append displayedErr "..."
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break
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} else {
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append displayedErr "${line}\n"
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}
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incr lines
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}
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set title [mc "Application Error"]
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set text [mc "Error: %1\$s" $displayedErr]
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set buttons [list ok $ok dismiss [mc "Skip Messages"] \
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function [mc "Details >>"]]
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# 1. Create the top-level window and divide it into top
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# and bottom parts.
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set dlg .bgerrorDialog
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set bg [ttk::style lookup . -background]
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destroy $dlg
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toplevel $dlg -class ErrorDialog -background $bg
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wm withdraw $dlg
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wm title $dlg $title
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wm iconname $dlg ErrorDialog
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wm protocol $dlg WM_DELETE_WINDOW [namespace code DeleteByProtocol]
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if {$windowingsystem eq "aqua"} {
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::tk::unsupported::MacWindowStyle style $dlg moveableAlert {}
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} elseif {$windowingsystem eq "x11"} {
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wm attributes $dlg -type dialog
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}
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ttk::frame $dlg.bot
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ttk::frame $dlg.top
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pack $dlg.bot -side bottom -fill both
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pack $dlg.top -side top -fill both -expand 1
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set W [ttk::frame $dlg.top.info]
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text $W.text -setgrid true -height 10 -wrap char \
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-yscrollcommand [list $W.scroll set]
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if {$windowingsystem ne "aqua"} {
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$W.text configure -width 40
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}
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ttk::scrollbar $W.scroll -command [list $W.text yview]
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pack $W.scroll -side right -fill y
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pack $W.text -side left -expand yes -fill both
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$W.text insert 0.0 "$err\n$info"
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$W.text mark set insert 0.0
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bind $W.text <ButtonPress-1> { focus %W }
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$W.text configure -state disabled
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# 2. Fill the top part with bitmap and message
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# Max-width of message is the width of the screen...
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set wrapwidth [winfo screenwidth $dlg]
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# ...minus the width of the icon, padding and a fudge factor for
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# the window manager decorations and aesthetics.
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set wrapwidth [expr {$wrapwidth-60-[winfo pixels $dlg 9m]}]
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ttk::label $dlg.msg -justify left -text $text -wraplength $wrapwidth
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ttk::label $dlg.bitmap -image ::tk::icons::error
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grid $dlg.bitmap $dlg.msg -in $dlg.top -row 0 -padx 3m -pady 3m
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grid configure $dlg.bitmap -sticky ne
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grid configure $dlg.msg -sticky nsw -padx {0 3m}
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grid rowconfigure $dlg.top 1 -weight 1
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grid columnconfigure $dlg.top 1 -weight 1
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# 3. Create a row of buttons at the bottom of the dialog.
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set i 0
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foreach {name caption} $buttons {
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ttk::button $dlg.$name -text $caption -default normal \
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-command [namespace code [list set button $i]]
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grid $dlg.$name -in $dlg.bot -column $i -row 0 -sticky ew -padx 10
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grid columnconfigure $dlg.bot $i -weight 1
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# We boost the size of some Mac buttons for l&f
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if {$windowingsystem eq "aqua"} {
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if {($name eq "ok") || ($name eq "dismiss")} {
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grid columnconfigure $dlg.bot $i -minsize 90
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}
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grid configure $dlg.$name -pady 7
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}
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incr i
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}
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# The "OK" button is the default for this dialog.
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$dlg.ok configure -default active
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bind $dlg <Return> [namespace code {Return ok 0}]
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bind $dlg <Escape> [namespace code {Return dismiss 1}]
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bind $dlg <Destroy> [namespace code {Destroy %W}]
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bind $dlg.function <Return> [namespace code {ReturnInDetails %W}]
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$dlg.function configure -command [namespace code Details]
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# 6. Withdraw the window, then update all the geometry information
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# so we know how big it wants to be, then center the window in the
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# display (Motif style) and de-iconify it.
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::tk::PlaceWindow $dlg
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# 7. Set a grab and claim the focus too.
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::tk::SetFocusGrab $dlg $dlg.ok
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# 8. Ensure that we are topmost.
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raise $dlg
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if {[tk windowingsystem] eq "win32"} {
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# Place it topmost if we aren't at the top of the stacking
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# order to ensure that it's seen
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if {[lindex [wm stackorder .] end] ne "$dlg"} {
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wm attributes $dlg -topmost 1
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}
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}
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# 9. Wait for the user to respond, then restore the focus and
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# return the index of the selected button. Restore the focus
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# before deleting the window, since otherwise the window manager
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# may take the focus away so we can't redirect it. Finally,
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# restore any grab that was in effect.
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vwait [namespace which -variable button]
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set copy $button; # Save a copy...
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::tk::RestoreFocusGrab $dlg $dlg.ok destroy
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if {$copy == 1} {
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return -code break
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}
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}
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namespace eval :: {
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# Fool the indexer
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proc bgerror err {}
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rename bgerror {}
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namespace import ::tk::dialog::error::bgerror
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}
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