Initial bulk commit for "Git on MSys"
[msysgit/historical-msysgit.git] / mingw / lib / tk8.4 / tearoff.tcl
blob053ebd95e41f3ef7ff30097e83432afc58a19c35
1 # tearoff.tcl --
3 # This file contains procedures that implement tear-off menus.
5 # RCS: @(#) $Id: tearoff.tcl,v 1.7.4.1 2006/01/25 18:21:41 dgp 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
21 # Arguments:
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.
35 if {$x == 0} {
36 set x [winfo rootx $w]
38 if {$y == 0} {
39 set y [winfo rooty $w]
42 set parent [winfo parent $w]
43 while {[winfo toplevel $parent] ne $parent || [winfo class $parent] eq "Menu"} {
44 set parent [winfo parent $parent]
46 if {$parent eq "."} {
47 set parent ""
49 for {set i 1} 1 {incr i} {
50 set menu $parent.tearoff$i
51 if {![winfo exists $menu]} {
52 break
56 $w clone $menu tearoff
58 # Pick a title for the new menu by looking at the parent of the
59 # original: if the parent is a menu, then use the text of the active
60 # entry. If it's a menubutton then use its text.
62 set parent [winfo parent $w]
63 if {[$menu cget -title] ne ""} {
64 wm title $menu [$menu cget -title]
65 } else {
66 switch [winfo class $parent] {
67 Menubutton {
68 wm title $menu [$parent cget -text]
70 Menu {
71 wm title $menu [$parent entrycget active -label]
76 $menu post $x $y
78 if {[winfo exists $menu] == 0} {
79 return ""
82 # Set tk::Priv(focus) on entry: otherwise the focus will get lost
83 # after keyboard invocation of a sub-menu (it will stay on the
84 # submenu).
86 bind $menu <Enter> {
87 set tk::Priv(focus) %W
90 # If there is a -tearoffcommand option for the menu, invoke it
91 # now.
93 set cmd [$w cget -tearoffcommand]
94 if {$cmd ne ""} {
95 uplevel #0 $cmd [list $w $menu]
97 return $menu
100 # ::tk::MenuDup --
101 # Given a menu (hierarchy), create a duplicate menu (hierarchy)
102 # in a given window.
104 # Arguments:
105 # src - Source window. Must be a menu. It and its
106 # menu descendants will be duplicated at dst.
107 # dst - Name to use for topmost menu in duplicate
108 # hierarchy.
110 proc ::tk::MenuDup {src dst type} {
111 set cmd [list menu $dst -type $type]
112 foreach option [$src configure] {
113 if {[llength $option] == 2} {
114 continue
116 if {[lindex $option 0] eq "-type"} {
117 continue
119 lappend cmd [lindex $option 0] [lindex $option 4]
121 eval $cmd
122 set last [$src index last]
123 if {$last eq "none"} {
124 return
126 for {set i [$src cget -tearoff]} {$i <= $last} {incr i} {
127 set cmd [list $dst add [$src type $i]]
128 foreach option [$src entryconfigure $i] {
129 lappend cmd [lindex $option 0] [lindex $option 4]
131 eval $cmd
134 # Duplicate the binding tags and bindings from the source menu.
136 set tags [bindtags $src]
137 set srcLen [string length $src]
139 # Copy tags to x, replacing each substring of src with dst.
141 while {[set index [string first $src $tags]] != -1} {
142 append x [string range $tags 0 [expr {$index - 1}]]$dst
143 set tags [string range $tags [expr {$index + $srcLen}] end]
145 append x $tags
147 bindtags $dst $x
149 foreach event [bind $src] {
150 unset x
151 set script [bind $src $event]
152 set eventLen [string length $event]
154 # Copy script to x, replacing each substring of event with dst.
156 while {[set index [string first $event $script]] != -1} {
157 append x [string range $script 0 [expr {$index - 1}]]
158 append x $dst
159 set script [string range $script [expr {$index + $eventLen}] end]
161 append x $script
163 bind $dst $event $x