--- /dev/null
+# dialog.tcl --
+#
+# This file defines the procedure tk_dialog, which creates a dialog
+# box containing a bitmap, a message, and one or more buttons.
+#
+# 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} {
+ variable ::tk::Priv
+
+ # Check that $default was properly given
+ if {[string is integer -strict $default]} {
+ if {$default >= [llength $args]} {
+ return -code error -errorcode {TK DIALOG BAD_DEFAULT} \
+ "default button index greater than number of buttons\
+ specified for tk_dialog"
+ }
+ } elseif {"" eq $default} {
+ set default -1
+ } else {
+ set default [lsearch -exact $args $default]
+ }
+
+ set windowingsystem [tk windowingsystem]
+
+ # 1. Create the top-level window and divide it into top
+ # and bottom parts.
+
+ destroy $w
+ toplevel $w -class Dialog
+ wm title $w $title
+ wm iconname $w Dialog
+ wm protocol $w WM_DELETE_WINDOW { }
+
+ # Dialog boxes should be transient with respect to their parent,
+ # so that they will always stay on top of their parent window. However,
+ # some window managers will create the window as withdrawn if the parent
+ # window is withdrawn or iconified. Combined with the grab we put on the
+ # window, this can hang the entire application. Therefore we only make
+ # the dialog transient if the parent is viewable.
+ #
+ if {[winfo viewable [winfo toplevel [winfo parent $w]]] } {
+ wm transient $w [winfo toplevel [winfo parent $w]]
+ }
+
+ if {$windowingsystem eq "aqua"} {
+ ::tk::unsupported::MacWindowStyle style $w moveableModal {}
+ } elseif {$windowingsystem eq "x11"} {
+ wm attributes $w -type dialog
+ }
+
+ frame $w.bot
+ frame $w.top
+ if {$windowingsystem eq "x11"} {
+ $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
+ grid anchor $w.bot center
+
+ # 2. Fill the top part with bitmap and message (use the option
+ # database for -wraplength and -font so that they can be
+ # overridden by the caller).
+
+ option add *Dialog.msg.wrapLength 3i widgetDefault
+ option add *Dialog.msg.font TkCaptionFont widgetDefault
+
+ label $w.msg -justify left -text $text
+ pack $w.msg -in $w.top -side right -expand 1 -fill both -padx 3m -pady 3m
+ if {$bitmap ne ""} {
+ if {$windowingsystem eq "aqua" && $bitmap eq "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 [list set ::tk::Priv(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 -pady 4
+ grid columnconfigure $w.bot $i
+ # We boost the size of some Mac buttons for l&f
+ if {$windowingsystem eq "aqua"} {
+ set tmp [string tolower $but]
+ if {$tmp eq "ok" || $tmp eq "cancel"} {
+ grid columnconfigure $w.bot $i -minsize 90
+ }
+ grid configure $w.button$i -pady 7
+ }
+ incr i
+ }
+
+ # 4. Create a binding for <Return> on the dialog if there is a
+ # default button.
+ # Convention also dictates that if the keyboard focus moves among the
+ # the buttons that the <Return> binding affects the button with the focus.
+
+ if {$default >= 0} {
+ bind $w <Return> [list $w.button$default invoke]
+ }
+ bind $w <<PrevWindow>> [list bind $w <Return> {[tk_focusPrev %W] invoke}]
+ bind $w <<NextWindow>> [list bind $w <Return> {[tk_focusNext %W] invoke}]
+
+ # 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 ::tk::Priv(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 (Motif style) and de-iconify it.
+
+ ::tk::PlaceWindow $w
+ tkwait visibility $w
+
+ # 7. Set a grab and claim the focus too.
+
+ if {$default >= 0} {
+ set focus $w.button$default
+ } else {
+ set focus $w
+ }
+ tk::SetFocusGrab $w $focus
+
+ # 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.
+
+ vwait ::tk::Priv(button)
+
+ catch {
+ # It's possible that the window has already been destroyed,
+ # hence this "catch". Delete the Destroy handler so that
+ # Priv(button) doesn't get reset by it.
+
+ bind $w <Destroy> {}
+ }
+ tk::RestoreFocusGrab $w $focus
+ return $Priv(button)
+}
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