3 # This file contains procedures that implement tear-off menus.
5 # Copyright (c) 1994 The Regents of the University of California.
6 # Copyright (c) 1994-1997 Sun Microsystems, Inc.
8 # See the file "license.terms" for information on usage and redistribution
9 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
12 # ::tk::TearoffMenu --
13 # Given the name of a menu, this procedure creates a torn-off menu
14 # that is identical to the given menu (including nested submenus).
15 # The new torn-off menu exists as a toplevel window managed by the
16 # window manager. The return value is the name of the new menu.
17 # The window is created at the point specified by x and y
20 # w - The menu to be torn-off (duplicated).
21 # x - x coordinate where window is created
22 # y - y coordinate where window is created
24 proc ::tk::TearOffMenu {w
{x
0} {y
0}} {
25 # Find a unique name to use for the torn-off menu. Find the first
26 # ancestor of w that is a toplevel but not a menu, and use this as
27 # the parent of the new menu. This guarantees that the torn off
28 # menu will be on the same screen as the original menu. By making
29 # it a child of the ancestor, rather than a child of the menu, it
30 # can continue to live even if the menu is deleted; it will go
31 # away when the toplevel goes away.
34 set x
[winfo rootx
$w]
37 set y
[winfo rooty
$w]
38 if {[tk windowingsystem
] eq
"aqua"} {
39 # Shift by height of tearoff entry minus height of window titlebar
40 catch {incr y
[expr {[$w yposition
1] - 16}]}
41 # Avoid the native menu bar which sits on top of everything.
42 if {$y < 22} { set y
22 }
46 set parent
[winfo parent
$w]
47 while {[winfo toplevel $parent] ne
$parent \
48 ||
[winfo class
$parent] eq
"Menu"} {
49 set parent
[winfo parent
$parent]
54 for {set i
1} 1 {incr i
} {
55 set menu $parent.tearoff
$i
56 if {![winfo exists
$menu]} {
61 $w clone
$menu tearoff
63 # Pick a title for the new menu by looking at the parent of the
64 # original: if the parent is a menu, then use the text of the active
65 # entry. If it's a menubutton then use its text.
67 set parent
[winfo parent
$w]
68 if {[$menu cget
-title] ne
""} {
69 wm title
$menu [$menu cget
-title]
71 switch -- [winfo class
$parent] {
73 wm title
$menu [$parent cget
-text]
76 wm title
$menu [$parent entrycget active
-label]
81 if {[tk windowingsystem
] eq
"win32"} {
82 # [Bug 3181181]: Find the toplevel window for the menu
83 set parent
[winfo toplevel $parent]
84 while {[winfo class
$parent] eq
"Menu"} {
85 set parent
[winfo toplevel [winfo parent
$parent]]
87 wm transient
$menu [winfo toplevel $parent]
88 wm attributes
$menu -toolwindow 1
93 if {[winfo exists
$menu] == 0} {
97 # Set tk::Priv(focus) on entry: otherwise the focus will get lost
98 # after keyboard invocation of a sub-menu (it will stay on the
102 set tk::Priv(focus) %W
105 # If there is a -tearoffcommand option for the menu, invoke it
108 set cmd
[$w cget
-tearoffcommand]
110 uplevel #0 $cmd [list $w $menu]
116 # Given a menu (hierarchy), create a duplicate menu (hierarchy)
120 # src - Source window. Must be a menu. It and its
121 # menu descendants will be duplicated at dst.
122 # dst - Name to use for topmost menu in duplicate
125 proc ::tk::MenuDup {src dst type
} {
126 set cmd
[list menu $dst -type $type]
127 foreach option [$src configure
] {
128 if {[llength $option] == 2} {
131 if {[lindex $option 0] eq
"-type"} {
134 lappend cmd
[lindex $option 0] [lindex $option 4]
137 set last
[$src index last
]
138 if {$last eq
"none"} {
141 for {set i
[$src cget
-tearoff]} {$i <= $last} {incr i
} {
142 set cmd
[list $dst add
[$src type
$i]]
143 foreach option [$src entryconfigure
$i] {
144 lappend cmd
[lindex $option 0] [lindex $option 4]
149 # Duplicate the binding tags and bindings from the source menu.
151 set tags
[bindtags $src]
152 set srcLen
[string length
$src]
154 # Copy tags to x, replacing each substring of src with dst.
156 while {[set index
[string first
$src $tags]] != -1} {
157 append x
[string range
$tags 0 [expr {$index - 1}]]$dst
158 set tags
[string range
$tags [expr {$index + $srcLen}] end
]
164 foreach event [bind $src] {
166 set script
[bind $src $event]
167 set eventLen
[string length
$event]
169 # Copy script to x, replacing each substring of event with dst.
171 while {[set index
[string first
$event $script]] != -1} {
172 append x
[string range
$script 0 [expr {$index - 1}]]
174 set script
[string range
$script [expr {$index + $eventLen}] end
]