3 # This file contains procedures that implement tear-off menus.
5 # RCS: @(#) $Id: tearoff.tcl,v 1.11.4.1 2010/01/03 01:17:48 patthoyts Exp $
7 # Copyright (c) 1994 The Regents of the University of California.
8 # Copyright (c) 1994-1997 Sun Microsystems, Inc.
10 # See the file "license.terms" for information on usage and redistribution
11 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
14 # ::tk::TearoffMenu --
15 # Given the name of a menu, this procedure creates a torn-off menu
16 # that is identical to the given menu (including nested submenus).
17 # The new torn-off menu exists as a toplevel window managed by the
18 # window manager. The return value is the name of the new menu.
19 # The window is created at the point specified by x and y
22 # w - The menu to be torn-off (duplicated).
23 # x - x coordinate where window is created
24 # y - y coordinate where window is created
26 proc ::tk::TearOffMenu {w
{x
0} {y
0}} {
27 # Find a unique name to use for the torn-off menu. Find the first
28 # ancestor of w that is a toplevel but not a menu, and use this as
29 # the parent of the new menu. This guarantees that the torn off
30 # menu will be on the same screen as the original menu. By making
31 # it a child of the ancestor, rather than a child of the menu, it
32 # can continue to live even if the menu is deleted; it will go
33 # away when the toplevel goes away.
36 set x
[winfo rootx
$w]
39 set y
[winfo rooty
$w]
40 if {[tk windowingsystem
] eq
"aqua"} {
41 # Shift by height of tearoff entry minus height of window titlebar
42 catch {incr y
[expr {[$w yposition
1] - 16}]}
43 # Avoid the native menu bar which sits on top of everything.
44 if {$y < 22} { set y
22 }
48 set parent
[winfo parent
$w]
49 while {[winfo toplevel $parent] ne
$parent \
50 ||
[winfo class
$parent] eq
"Menu"} {
51 set parent
[winfo parent
$parent]
56 for {set i
1} 1 {incr i
} {
57 set menu $parent.tearoff
$i
58 if {![winfo exists
$menu]} {
63 $w clone
$menu tearoff
65 # Pick a title for the new menu by looking at the parent of the
66 # original: if the parent is a menu, then use the text of the active
67 # entry. If it's a menubutton then use its text.
69 set parent
[winfo parent
$w]
70 if {[$menu cget
-title] ne
""} {
71 wm title
$menu [$menu cget
-title]
73 switch -- [winfo class
$parent] {
75 wm title
$menu [$parent cget
-text]
78 wm title
$menu [$parent entrycget active
-label]
83 if {[tk windowingsystem
] eq
"win32"} {
84 wm transient
$menu [winfo toplevel $parent]
85 wm attributes
$menu -toolwindow 1
90 if {[winfo exists
$menu] == 0} {
94 # Set tk::Priv(focus) on entry: otherwise the focus will get lost
95 # after keyboard invocation of a sub-menu (it will stay on the
99 set tk::Priv(focus) %W
102 # If there is a -tearoffcommand option for the menu, invoke it
105 set cmd
[$w cget
-tearoffcommand]
107 uplevel #0 $cmd [list $w $menu]
113 # Given a menu (hierarchy), create a duplicate menu (hierarchy)
117 # src - Source window. Must be a menu. It and its
118 # menu descendants will be duplicated at dst.
119 # dst - Name to use for topmost menu in duplicate
122 proc ::tk::MenuDup {src dst type
} {
123 set cmd
[list menu $dst -type $type]
124 foreach option [$src configure
] {
125 if {[llength $option] == 2} {
128 if {[lindex $option 0] eq
"-type"} {
131 lappend cmd
[lindex $option 0] [lindex $option 4]
134 set last
[$src index last
]
135 if {$last eq
"none"} {
138 for {set i
[$src cget
-tearoff]} {$i <= $last} {incr i
} {
139 set cmd
[list $dst add
[$src type
$i]]
140 foreach option [$src entryconfigure
$i] {
141 lappend cmd
[lindex $option 0] [lindex $option 4]
146 # Duplicate the binding tags and bindings from the source menu.
148 set tags
[bindtags $src]
149 set srcLen
[string length
$src]
151 # Copy tags to x, replacing each substring of src with dst.
153 while {[set index
[string first
$src $tags]] != -1} {
154 append x
[string range
$tags 0 [expr {$index - 1}]]$dst
155 set tags
[string range
$tags [expr {$index + $srcLen}] end
]
161 foreach event [bind $src] {
163 set script
[bind $src $event]
164 set eventLen
[string length
$event]
166 # Copy script to x, replacing each substring of event with dst.
168 while {[set index
[string first
$event $script]] != -1} {
169 append x
[string range
$script 0 [expr {$index - 1}]]
171 set script
[string range
$script [expr {$index + $eventLen}] end
]