# tk.tcl --
#
# Initialization script normally executed in the interpreter for each Tk-based
# application. Arranges class bindings for widgets.
#
# Copyright (c) 1992-1994 The Regents of the University of California.
# Copyright (c) 1994-1996 Sun Microsystems, Inc.
# Copyright (c) 1998-2000 Ajuba Solutions.
#
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.

# Verify that we have Tk binary and script components from the same release
package require -exact Tk 8.6.6

# Create a ::tk namespace
namespace eval ::tk {
 # Set up the msgcat commands
 namespace eval msgcat {
	namespace export mc mcmax
 if {[interp issafe] || [catch {package require msgcat}]} {
 # The msgcat package is not available. Supply our own
 # minimal replacement.
 proc mc {src args} {
 return [format $src {*}$args]
 }
 proc mcmax {args} {
 set max 0
 foreach string $args {
 set len [string length $string]
 if {$len>$max} {
 set max $len
 }
 }
 return $max
 }
 } else {
 # Get the commands from the msgcat package that Tk uses.
 namespace import ::msgcat::mc
 namespace import ::msgcat::mcmax
 ::msgcat::mcload [file join $::tk_library msgs]
 }
 }
 namespace import ::tk::msgcat::*
}
# and a ::ttk namespace
namespace eval ::ttk {
 if {$::tk_library ne ""} {
	# avoid file join to work in safe interps, but this is also x-plat ok
	variable library $::tk_library/ttk
 }
}

# Add Ttk & Tk's directory to the end of the auto-load search path, if it
# isn't already on the path:

if {[info exists ::auto_path] && ($::tk_library ne "")
 && ($::tk_library ni $::auto_path)
} then {
 lappend ::auto_path $::tk_library $::ttk::library
}

# Turn off strict Motif look and feel as a default.

set ::tk_strictMotif 0

# Turn on useinputmethods (X Input Methods) by default.
# We catch this because safe interpreters may not allow the call.

catch {tk useinputmethods 1}

# ::tk::PlaceWindow --
# place a toplevel at a particular position
# Arguments:
# toplevel	name of toplevel window
# ?placement?	pointer ?center? ; places $w centered on the pointer
#		widget widgetPath ; centers $w over widget_name
#		defaults to placing toplevel in the middle of the screen
# ?anchor?	center or widgetPath
# Results:
# Returns nothing
#
proc ::tk::PlaceWindow {w {place ""} {anchor ""}} {
 wm withdraw $w
 update idletasks
 set checkBounds 1
 if {$place eq ""} {
	set x [expr {([winfo screenwidth $w]-[winfo reqwidth $w])/2}]
	set y [expr {([winfo screenheight $w]-[winfo reqheight $w])/2}]
	set checkBounds 0
 } elseif {[string equal -length [string length $place] $place "pointer"]} {
	## place at POINTER (centered if $anchor == center)
	if {[string equal -length [string length $anchor] $anchor "center"]} {
	 set x [expr {[winfo pointerx $w]-[winfo reqwidth $w]/2}]
	 set y [expr {[winfo pointery $w]-[winfo reqheight $w]/2}]
	} else {
	 set x [winfo pointerx $w]
	 set y [winfo pointery $w]
	}
 } elseif {[string equal -length [string length $place] $place "widget"] && \
	 [winfo exists $anchor] && [winfo ismapped $anchor]} {
	## center about WIDGET $anchor, widget must be mapped
	set x [expr {[winfo rootx $anchor] + \
		([winfo width $anchor]-[winfo reqwidth $w])/2}]
	set y [expr {[winfo rooty $anchor] + \
		([winfo height $anchor]-[winfo reqheight $w])/2}]
 } else {
	set x [expr {([winfo screenwidth $w]-[winfo reqwidth $w])/2}]
	set y [expr {([winfo screenheight $w]-[winfo reqheight $w])/2}]
	set checkBounds 0
 }
 if {$checkBounds} {
	if {$x < [winfo vrootx $w]} {
	 set x [winfo vrootx $w]
	} elseif {$x > ([winfo vrootx $w]+[winfo vrootwidth $w]-[winfo reqwidth $w])} {
	 set x [expr {[winfo vrootx $w]+[winfo vrootwidth $w]-[winfo reqwidth $w]}]
	}
	if {$y < [winfo vrooty $w]} {
	 set y [winfo vrooty $w]
	} elseif {$y > ([winfo vrooty $w]+[winfo vrootheight $w]-[winfo reqheight $w])} {
	 set y [expr {[winfo vrooty $w]+[winfo vrootheight $w]-[winfo reqheight $w]}]
	}
	if {[tk windowingsystem] eq "aqua"} {
	 # Avoid the native menu bar which sits on top of everything.
	 if {$y < 22} {
		set y 22
	 }
	}
 }
 wm maxsize $w [winfo vrootwidth $w] [winfo vrootheight $w]
 wm geometry $w +$x+$y
 wm deiconify $w
}

# ::tk::SetFocusGrab --
# swap out current focus and grab temporarily (for dialogs)
# Arguments:
# grab	new window to grab
# focus	window to give focus to
# Results:
# Returns nothing
#
proc ::tk::SetFocusGrab {grab {focus {}}} {
 set index "$grab,$focus"
 upvar ::tk::FocusGrab($index) data

 lappend data [focus]
 set oldGrab [grab current $grab]
 lappend data $oldGrab
 if {[winfo exists $oldGrab]} {
	lappend data [grab status $oldGrab]
 }
 # The "grab" command will fail if another application
 # already holds the grab. So catch it.
 catch {grab $grab}
 if {[winfo exists $focus]} {
	focus $focus
 }
}

# ::tk::RestoreFocusGrab --
# restore old focus and grab (for dialogs)
# Arguments:
# grab	window that had taken grab
# focus	window that had taken focus
# destroy	destroy|withdraw - how to handle the old grabbed window
# Results:
# Returns nothing
#
proc ::tk::RestoreFocusGrab {grab focus {destroy destroy}} {
 set index "$grab,$focus"
 if {[info exists ::tk::FocusGrab($index)]} {
	foreach {oldFocus oldGrab oldStatus} $::tk::FocusGrab($index) { break }
	unset ::tk::FocusGrab($index)
 } else {
	set oldGrab ""
 }

 catch {focus $oldFocus}
 grab release $grab
 if {$destroy eq "withdraw"} {
	wm withdraw $grab
 } else {
	destroy $grab
 }
 if {[winfo exists $oldGrab] && [winfo ismapped $oldGrab]} {
	if {$oldStatus eq "global"} {
	 grab -global $oldGrab
	} else {
	 grab $oldGrab
	}
 }
}

# ::tk::GetSelection --
# This tries to obtain the default selection. On Unix, we first try
# and get a UTF8_STRING, a type supported by modern Unix apps for
# passing Unicode data safely. We fall back on the default STRING
# type otherwise. On Windows, only the STRING type is necessary.
# Arguments:
# w	The widget for which the selection will be retrieved.
#	Important for the -displayof property.
# sel	The source of the selection (PRIMARY or CLIPBOARD)
# Results:
# Returns the selection, or an error if none could be found
#
if {[tk windowingsystem] ne "win32"} {
 proc ::tk::GetSelection {w {sel PRIMARY}} {
	if {[catch {
	 selection get -displayof $w -selection $sel -type UTF8_STRING
	} txt] && [catch {
	 selection get -displayof $w -selection $sel
	} txt]} then {
	 return -code error -errorcode {TK SELECTION NONE} \
		"could not find default selection"
	} else {
	 return $txt
	}
 }
} else {
 proc ::tk::GetSelection {w {sel PRIMARY}} {
	if {[catch {
	 selection get -displayof $w -selection $sel
	} txt]} then {
	 return -code error -errorcode {TK SELECTION NONE} \
		"could not find default selection"
	} else {
	 return $txt
	}
 }
}

# ::tk::ScreenChanged --
# This procedure is invoked by the binding mechanism whenever the
# "current" screen is changing. The procedure does two things.
# First, it uses "upvar" to make variable "::tk::Priv" point at an
# array variable that holds state for the current display. Second,
# it initializes the array if it didn't already exist.
#
# Arguments:
# screen -		The name of the new screen.

proc ::tk::ScreenChanged screen {
 # Extract the display name.
 set disp [string range $screen 0 [string last . $screen]-1]

 # Ensure that namespace separators never occur in the display name (as
 # they cause problems in variable names). Double-colons exist in some VNC
 # display names. [Bug 2912473]
 set disp [string map {:: _doublecolon_} $disp]

 uplevel #0 [list upvar #0 ::tk::Priv.$disp ::tk::Priv]
 variable ::tk::Priv

 if {[info exists Priv]} {
	set Priv(screen) $screen
	return
 }
 array set Priv {
	activeMenu	{}
	activeItem	{}
	afterId		{}
	buttons		0
	buttonWindow	{}
	dragging	0
	focus		{}
	grab		{}
	initPos		{}
	inMenubutton	{}
	listboxPrev	{}
	menuBar		{}
	mouseMoved	0
	oldGrab		{}
	popup		{}
	postedMb	{}
	pressX		0
	pressY		0
	prevPos		0
	selectMode	char
 }
 set Priv(screen) $screen
 set Priv(tearoff) [string equal [tk windowingsystem] "x11"]
 set Priv(window) {}
}

# Do initial setup for Priv, so that it is always bound to something
# (otherwise, if someone references it, it may get set to a non-upvar-ed
# value, which will cause trouble later).

tk::ScreenChanged [winfo screen .]

# ::tk::EventMotifBindings --
# This procedure is invoked as a trace whenever ::tk_strictMotif is
# changed. It is used to turn on or turn off the motif virtual
# bindings.
#
# Arguments:
# n1 - the name of the variable being changed ("::tk_strictMotif").

proc ::tk::EventMotifBindings {n1 dummy dummy} {
 upvar $n1 name

 if {$name} {
	set op delete
 } else {
	set op add
 }

 event $op <<Cut>> <Control-Key-w> <Control-Lock-Key-W> <Shift-Key-Delete>
 event $op <<Copy>> <Meta-Key-w> <Meta-Lock-Key-W> <Control-Key-Insert>
 event $op <<Paste>> <Control-Key-y> <Control-Lock-Key-Y> <Shift-Key-Insert>
 event $op <<PrevChar>> <Control-Key-b> <Control-Lock-Key-B>
 event $op <<NextChar>> <Control-Key-f> <Control-Lock-Key-F>
 event $op <<PrevLine>> <Control-Key-p> <Control-Lock-Key-P>
 event $op <<NextLine>> <Control-Key-n> <Control-Lock-Key-N>
 event $op <<LineStart>> <Control-Key-a> <Control-Lock-Key-A>
 event $op <<LineEnd>> <Control-Key-e> <Control-Lock-Key-E>
 event $op <<SelectPrevChar>> <Control-Key-B> <Control-Lock-Key-b>
 event $op <<SelectNextChar>> <Control-Key-F> <Control-Lock-Key-f>
 event $op <<SelectPrevLine>> <Control-Key-P> <Control-Lock-Key-p>
 event $op <<SelectNextLine>> <Control-Key-N> <Control-Lock-Key-n>
 event $op <<SelectLineStart>> <Control-Key-A> <Control-Lock-Key-a>
 event $op <<SelectLineEnd>> <Control-Key-E> <Control-Lock-Key-e>
}

#----------------------------------------------------------------------
# Define common dialogs on platforms where they are not implemented
# using compiled code.
#----------------------------------------------------------------------

if {![llength [info commands tk_chooseColor]]} {
 proc ::tk_chooseColor {args} {
	return [::tk::dialog::color:: {*}$args]
 }
}
if {![llength [info commands tk_getOpenFile]]} {
 proc ::tk_getOpenFile {args} {
	if {$::tk_strictMotif} {
	 return [::tk::MotifFDialog open {*}$args]
	} else {
	 return [::tk::dialog::file:: open {*}$args]
	}
 }
}
if {![llength [info commands tk_getSaveFile]]} {
 proc ::tk_getSaveFile {args} {
	if {$::tk_strictMotif} {
	 return [::tk::MotifFDialog save {*}$args]
	} else {
	 return [::tk::dialog::file:: save {*}$args]
	}
 }
}
if {![llength [info commands tk_messageBox]]} {
 proc ::tk_messageBox {args} {
	return [::tk::MessageBox {*}$args]
 }
}
if {![llength [info command tk_chooseDirectory]]} {
 proc ::tk_chooseDirectory {args} {
	return [::tk::dialog::file::chooseDir:: {*}$args]
 }
}

#----------------------------------------------------------------------
# Define the set of common virtual events.
#----------------------------------------------------------------------

switch -exact -- [tk windowingsystem] {
 "x11" {
	event add <<Cut>>		<Control-Key-x> <Key-F20> <Control-Lock-Key-X>
	event add <<Copy>>		<Control-Key-c> <Key-F16> <Control-Lock-Key-C>
	event add <<Paste>>		<Control-Key-v> <Key-F18> <Control-Lock-Key-V>
	event add <<PasteSelection>>	<ButtonRelease-2>
	event add <<Undo>>		<Control-Key-z> <Control-Lock-Key-Z>
	event add <<Redo>>		<Control-Key-Z> <Control-Lock-Key-z>
	event add <<ContextMenu>>	<Button-3>
	# On Darwin/Aqua, buttons from left to right are 1,3,2. On Darwin/X11 with recent
	# XQuartz as the X server, they are 1,2,3; other X servers may differ.

	event add <<SelectAll>>		<Control-Key-slash>
	event add <<SelectNone>>	<Control-Key-backslash>
	event add <<NextChar>>		<Right>
	event add <<SelectNextChar>>	<Shift-Right>
	event add <<PrevChar>>		<Left>
	event add <<SelectPrevChar>>	<Shift-Left>
	event add <<NextWord>>		<Control-Right>
	event add <<SelectNextWord>>	<Control-Shift-Right>
	event add <<PrevWord>>		<Control-Left>
	event add <<SelectPrevWord>>	<Control-Shift-Left>
	event add <<LineStart>>		<Home>
	event add <<SelectLineStart>>	<Shift-Home>
	event add <<LineEnd>>		<End>
	event add <<SelectLineEnd>>	<Shift-End>
	event add <<PrevLine>>		<Up>
	event add <<NextLine>>		<Down>
	event add <<SelectPrevLine>>	<Shift-Up>
	event add <<SelectNextLine>>	<Shift-Down>
	event add <<PrevPara>>		<Control-Up>
	event add <<NextPara>>		<Control-Down>
	event add <<SelectPrevPara>>	<Control-Shift-Up>
	event add <<SelectNextPara>>	<Control-Shift-Down>
	event add <<ToggleSelection>>	<Control-ButtonPress-1>

	# Some OS's define a goofy (as in, not <Shift-Tab>) keysym that is
	# returned when the user presses <Shift-Tab>. In order for tab
	# traversal to work, we have to add these keysyms to the PrevWindow
	# event. We use catch just in case the keysym isn't recognized.

	# This is needed for XFree86 systems
	catch { event add <<PrevWindow>> <ISO_Left_Tab> }
	# This seems to be correct on *some* HP systems.
	catch { event add <<PrevWindow>> <hpBackTab> }

	trace add variable ::tk_strictMotif write ::tk::EventMotifBindings
	set ::tk_strictMotif $::tk_strictMotif
	# On unix, we want to always display entry/text selection,
	# regardless of which window has focus
	set ::tk::AlwaysShowSelection 1
 }
 "win32" {
	event add <<Cut>>		<Control-Key-x> <Shift-Key-Delete> <Control-Lock-Key-X>
	event add <<Copy>>		<Control-Key-c> <Control-Key-Insert> <Control-Lock-Key-C>
	event add <<Paste>>		<Control-Key-v> <Shift-Key-Insert> <Control-Lock-Key-V>
	event add <<PasteSelection>>	<ButtonRelease-2>
 	event add <<Undo>>		<Control-Key-z> <Control-Lock-Key-Z>
	event add <<Redo>>		<Control-Key-y> <Control-Lock-Key-Y>
	event add <<ContextMenu>>	<Button-3>

	event add <<SelectAll>>		<Control-Key-slash> <Control-Key-a> <Control-Lock-Key-A>
	event add <<SelectNone>>	<Control-Key-backslash>
	event add <<NextChar>>		<Right>
	event add <<SelectNextChar>>	<Shift-Right>
	event add <<PrevChar>>		<Left>
	event add <<SelectPrevChar>>	<Shift-Left>
	event add <<NextWord>>		<Control-Right>
	event add <<SelectNextWord>>	<Control-Shift-Right>
	event add <<PrevWord>>		<Control-Left>
	event add <<SelectPrevWord>>	<Control-Shift-Left>
	event add <<LineStart>>		<Home>
	event add <<SelectLineStart>>	<Shift-Home>
	event add <<LineEnd>>		<End>
	event add <<SelectLineEnd>>	<Shift-End>
	event add <<PrevLine>>		<Up>
	event add <<NextLine>>		<Down>
	event add <<SelectPrevLine>>	<Shift-Up>
	event add <<SelectNextLine>>	<Shift-Down>
	event add <<PrevPara>>		<Control-Up>
	event add <<NextPara>>		<Control-Down>
	event add <<SelectPrevPara>>	<Control-Shift-Up>
	event add <<SelectNextPara>>	<Control-Shift-Down>
	event add <<ToggleSelection>>	<Control-ButtonPress-1>
 }
 "aqua" {
	event add <<Cut>>		<Command-Key-x> <Key-F2> <Command-Lock-Key-X>
	event add <<Copy>>		<Command-Key-c> <Key-F3> <Command-Lock-Key-C>
	event add <<Paste>>		<Command-Key-v> <Key-F4> <Command-Lock-Key-V>
	event add <<PasteSelection>>	<ButtonRelease-3>
	event add <<Clear>>		<Clear>
	event add <<ContextMenu>>	<Button-2>

	# Official bindings
	# See http://support.apple.com/kb/HT1343
	event add <<SelectAll>>		<Command-Key-a>
	event add <<SelectNone>>	<Option-Command-Key-a>
	event add <<Undo>>		<Command-Key-z> <Command-Lock-Key-Z>
	event add <<Redo>>		<Shift-Command-Key-z> <Shift-Command-Lock-Key-z>
	event add <<NextChar>>		<Right> <Control-Key-f> <Control-Lock-Key-F>
	event add <<SelectNextChar>>	<Shift-Right> <Shift-Control-Key-F> <Shift-Control-Lock-Key-F>
	event add <<PrevChar>>		<Left> <Control-Key-b> <Control-Lock-Key-B>
	event add <<SelectPrevChar>>	<Shift-Left> <Shift-Control-Key-B> <Shift-Control-Lock-Key-B>
	event add <<NextWord>>		<Option-Right>
	event add <<SelectNextWord>>	<Shift-Option-Right>
	event add <<PrevWord>>		<Option-Left>
	event add <<SelectPrevWord>>	<Shift-Option-Left>
	event add <<LineStart>>		<Home> <Command-Left> <Control-Key-a> <Control-Lock-Key-A>
	event add <<SelectLineStart>>	<Shift-Home> <Shift-Command-Left> <Shift-Control-Key-A> <Shift-Control-Lock-Key-A>
	event add <<LineEnd>>		<End> <Command-Right> <Control-Key-e> <Control-Lock-Key-E>
	event add <<SelectLineEnd>>	<Shift-End> <Shift-Command-Right> <Shift-Control-Key-E> <Shift-Control-Lock-Key-E>
	event add <<PrevLine>>		<Up> <Control-Key-p> <Control-Lock-Key-P>
	event add <<SelectPrevLine>>	<Shift-Up> <Shift-Control-Key-P> <Shift-Control-Lock-Key-P>
	event add <<NextLine>>		<Down> <Control-Key-n> <Control-Lock-Key-N>
	event add <<SelectNextLine>>	<Shift-Down> <Shift-Control-Key-N> <Shift-Control-Lock-Key-N>
	# Not official, but logical extensions of above. Also derived from
	# bindings present in MS Word on OSX.
	event add <<PrevPara>>		<Option-Up>
	event add <<NextPara>>		<Option-Down>
	event add <<SelectPrevPara>>	<Shift-Option-Up>
	event add <<SelectNextPara>>	<Shift-Option-Down>
	event add <<ToggleSelection>>	<Command-ButtonPress-1>
 }
}

# ----------------------------------------------------------------------
# Read in files that define all of the class bindings.
# ----------------------------------------------------------------------

if {$::tk_library ne ""} {
 proc ::tk::SourceLibFile {file} {
 namespace eval :: [list source [file join $::tk_library $file.tcl]]
 }
 namespace eval ::tk {
	SourceLibFile icons
	SourceLibFile button
	SourceLibFile entry
	SourceLibFile listbox
	SourceLibFile menu
	SourceLibFile panedwindow
	SourceLibFile scale
	SourceLibFile scrlbar
	SourceLibFile spinbox
	SourceLibFile text
 }
}

# ----------------------------------------------------------------------
# Default bindings for keyboard traversal.
# ----------------------------------------------------------------------

event add <<PrevWindow>> <Shift-Tab>
event add <<NextWindow>> <Tab>
bind all <<NextWindow>> {tk::TabToWindow [tk_focusNext %W]}
bind all <<PrevWindow>> {tk::TabToWindow [tk_focusPrev %W]}

# ::tk::CancelRepeat --
# This procedure is invoked to cancel an auto-repeat action described
# by ::tk::Priv(afterId). It's used by several widgets to auto-scroll
# the widget when the mouse is dragged out of the widget with a
# button pressed.
#
# Arguments:
# None.

proc ::tk::CancelRepeat {} {
 variable ::tk::Priv
 after cancel $Priv(afterId)
 set Priv(afterId) {}
}

# ::tk::TabToWindow --
# This procedure moves the focus to the given widget.
# It sends a <<TraverseOut>> virtual event to the previous focus window,
# if any, before changing the focus, and a <<TraverseIn>> event
# to the new focus window afterwards.
#
# Arguments:
# w - Window to which focus should be set.

proc ::tk::TabToWindow {w} {
 set focus [focus]
 if {$focus ne ""} {
	event generate $focus <<TraverseOut>>
 }
 focus $w
 event generate $w <<TraverseIn>>
}

# ::tk::UnderlineAmpersand --
#	This procedure takes some text with ampersand and returns text w/o
#	ampersand and position of the ampersand. Double ampersands are
#	converted to single ones. Position returned is -1 when there is no
#	ampersand.
#
proc ::tk::UnderlineAmpersand {text} {
 set s [string map {&& & & \ufeff} $text]
 set idx [string first \ufeff $s]
 return [list [string map {\ufeff {}} $s] $idx]
}

# ::tk::SetAmpText --
#	Given widget path and text with "magic ampersands", sets -text and
#	-underline options for the widget
#
proc ::tk::SetAmpText {widget text} {
 lassign [UnderlineAmpersand $text] newtext under
 $widget configure -text $newtext -underline $under
}

# ::tk::AmpWidget --
#	Creates new widget, turning -text option into -text and -underline
#	options, returned by ::tk::UnderlineAmpersand.
#
proc ::tk::AmpWidget {class path args} {
 set options {}
 foreach {opt val} $args {
	if {$opt eq "-text"} {
	 lassign [UnderlineAmpersand $val] newtext under
	 lappend options -text $newtext -underline $under
	} else {
	 lappend options $opt $val
	}
 }
 set result [$class $path {*}$options]
 if {[string match "*button" $class]} {
	bind $path <<AltUnderlined>> [list $path invoke]
 }
 return $result
}

# ::tk::AmpMenuArgs --
#	Processes arguments for a menu entry, turning -label option into
#	-label and -underline options, returned by ::tk::UnderlineAmpersand.
#
proc ::tk::AmpMenuArgs {widget add type args} {
 set options {}
 foreach {opt val} $args {
	if {$opt eq "-label"} {
	 lassign [UnderlineAmpersand $val] newlabel under
	 lappend options -label $newlabel -underline $under
	} else {
	 lappend options $opt $val
	}
 }
 $widget add $type {*}$options
}

# ::tk::FindAltKeyTarget --
#	Search recursively through the hierarchy of visible widgets to find
#	button or label which has $char as underlined character.
#
proc ::tk::FindAltKeyTarget {path char} {
 set class [winfo class $path]
 if {$class in {
	Button Checkbutton Label Radiobutton
	TButton TCheckbutton TLabel TRadiobutton
 } && [string equal -nocase $char \
	 [string index [$path cget -text] [$path cget -underline]]]} {
	return $path
 }
 set subwins [concat [grid slaves $path] [pack slaves $path] \
	 [place slaves $path]]
 if {$class eq "Canvas"} {
	foreach item [$path find all] {
	 if {[$path type $item] eq "window"} {
		set w [$path itemcget $item -window]
		if {$w ne ""} {lappend subwins $w}
	 }
	}
 } elseif {$class eq "Text"} {
	lappend subwins {*}[$path window names]
 }
 foreach child $subwins {
	set target [FindAltKeyTarget $child $char]
	if {$target ne ""} {
	 return $target
	}
 }
}

# ::tk::AltKeyInDialog --
#	<Alt-Key> event handler for standard dialogs. Sends <<AltUnderlined>>
#	to button or label which has appropriate underlined character.
#
proc ::tk::AltKeyInDialog {path key} {
 set target [FindAltKeyTarget $path $key]
 if {$target ne ""} {
	event generate $target <<AltUnderlined>>
 }
}

# ::tk::mcmaxamp --
#	Replacement for mcmax, used for texts with "magic ampersand" in it.
#

proc ::tk::mcmaxamp {args} {
 set maxlen 0
 foreach arg $args {
	# Should we run [mc] in caller's namespace?
	lassign [UnderlineAmpersand [mc $arg]] msg
	set length [string length $msg]
	if {$length > $maxlen} {
	 set maxlen $length
	}
 }
 return $maxlen
}

# For now, turn off the custom mdef proc for the mac:

if {[tk windowingsystem] eq "aqua"} {
 namespace eval ::tk::mac {
	set useCustomMDEF 0
 }
}

# Run the Ttk themed widget set initialization
if {$::ttk::library ne ""} {
 uplevel \#0 [list source $::ttk::library/ttk.tcl]
}

# Local Variables:
# mode: tcl
# fill-column: 78
# End: