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+# dialog.tcl --
+#
+# This file defines the procedure tk_dialog, which creates a dialog
+# box containing a bitmap, a message, and one or more buttons.
+#
+# SCCS: @(#) dialog.tcl 1.33 97/06/06 11:20:04
+#
+# Copyright (c) 1992-1993 The Regents of the University of California.
+# Copyright (c) 1994-1997 Sun Microsystems, Inc.
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+
+#
+# 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. If the
+# dialog somehow gets destroyed, -1 is returned.
+#
+# 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 tkPriv tcl_platform
+
+ # 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
+ wm protocol $w WM_DELETE_WINDOW { }
+
+ # The following command means that the dialog won't be posted if
+ # [winfo parent $w] is iconified, but it's really needed; otherwise
+ # the dialog can become obscured by other windows in the application,
+ # even though its grab keeps the rest of the application from being used.
+
+ wm transient $w [winfo toplevel [winfo parent $w]]
+ if {$tcl_platform(platform) == "macintosh"} {
+ unsupported1 style $w dBoxProc
+ }
+
+ frame $w.bot
+ frame $w.top
+ if {$tcl_platform(platform) == "unix"} {
+ $w.bot configure -relief raised -bd 1
+ $w.top configure -relief raised -bd 1
+ }
+ pack $w.bot -side bottom -fill both
+ pack $w.top -side top -fill both -expand 1
+
+ # 2. Fill the top part with bitmap and message (use the option
+ # database for -wraplength so that it can be overridden by
+ # the caller).
+
+ option add *Dialog.msg.wrapLength 3i widgetDefault
+ label $w.msg -justify left -text $text
+ if {$tcl_platform(platform) == "macintosh"} {
+ $w.msg configure -font system
+ } else {
+ $w.msg configure -font {Times 18}
+ }
+ pack $w.msg -in $w.top -side right -expand 1 -fill both -padx 3m -pady 3m
+ if {$bitmap != ""} {
+ if {($tcl_platform(platform) == "macintosh") && ($bitmap == "error")} {
+ set bitmap "stop"
+ }
+ label $w.bitmap -bitmap $bitmap
+ pack $w.bitmap -in $w.top -side left -padx 3m -pady 3m
+ }
+
+ # 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 tkPriv(button) $i"
+ if {$i == $default} {
+ $w.button$i configure -default active
+ } else {
+ $w.button$i configure -default normal
+ }
+ grid $w.button$i -in $w.bot -column $i -row 0 -sticky ew -padx 10
+ grid columnconfigure $w.bot $i
+ # We boost the size of some Mac buttons for l&f
+ if {$tcl_platform(platform) == "macintosh"} {
+ set tmp [string tolower $but]
+ if {($tmp == "ok") || ($tmp == "cancel")} {
+ grid columnconfigure $w.bot $i -minsize [expr 59 + 20]
+ }
+ }
+ incr i
+ }
+
+ # 4. Create a binding for <Return> on the dialog if there is a
+ # default button.
+
+ if {$default >= 0} {
+ bind $w <Return> "
+ $w.button$default configure -state active -relief sunken
+ update idletasks
+ after 100
+ set tkPriv(button) $default
+ "
+ }
+
+ # 5. Create a <Destroy> binding for the window that sets the
+ # button variable to -1; this is needed in case something happens
+ # that destroys the window, such as its parent window being destroyed.
+
+ bind $w <Destroy> {set tkPriv(button) -1}
+
+ # 6. 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
+
+ # 7. Set a grab and claim the focus too.
+
+ set oldFocus [focus]
+ set oldGrab [grab current $w]
+ if {$oldGrab != ""} {
+ set grabStatus [grab status $oldGrab]
+ }
+ grab $w
+ if {$default >= 0} {
+ focus $w.button$default
+ } else {
+ focus $w
+ }
+
+ # 8. Wait for the user to respond, then restore the focus and
+ # return the index of the selected button. Restore the focus
+ # before deleting the window, since otherwise the window manager
+ # may take the focus away so we can't redirect it. Finally,
+ # restore any grab that was in effect.
+
+ tkwait variable tkPriv(button)
+ catch {focus $oldFocus}
+ catch {
+ # It's possible that the window has already been destroyed,
+ # hence this "catch". Delete the Destroy handler so that
+ # tkPriv(button) doesn't get reset by it.
+
+ bind $w <Destroy> {}
+ destroy $w
+ }
+ if {$oldGrab != ""} {
+ if {$grabStatus == "global"} {
+ grab -global $oldGrab
+ } else {
+ grab $oldGrab
+ }
+ }
+ return $tkPriv(button)
+}