[37] | 1 | # tk.tcl -- |
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| 2 | # |
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| 3 | # Initialization script normally executed in the interpreter for each |
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| 4 | # Tk-based application. Arranges class bindings for widgets. |
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| 5 | # |
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| 6 | # RCS: @(#) $Id: tk.tcl,v 1.46.2.1 2003/10/28 15:59:34 dkf Exp $ |
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| 7 | # |
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| 8 | # Copyright (c) 1992-1994 The Regents of the University of California. |
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| 9 | # Copyright (c) 1994-1996 Sun Microsystems, Inc. |
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| 10 | # Copyright (c) 1998-2000 Ajuba Solutions. |
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| 11 | # |
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| 12 | # See the file "license.terms" for information on usage and redistribution |
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| 13 | # of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 14 | |
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| 15 | # Insist on running with compatible versions of Tcl and Tk. |
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| 16 | package require -exact Tk 8.4 |
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| 17 | package require -exact Tcl 8.4 |
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| 18 | |
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| 19 | # Create a ::tk namespace |
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| 20 | namespace eval ::tk { |
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| 21 | # Set up the msgcat commands |
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| 22 | namespace eval msgcat { |
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| 23 | namespace export mc mcmax |
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| 24 | if {[interp issafe] || [catch {package require msgcat}]} { |
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| 25 | # The msgcat package is not available. Supply our own |
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| 26 | # minimal replacement. |
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| 27 | proc mc {src args} { |
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| 28 | return [eval [list format $src] $args] |
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| 29 | } |
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| 30 | proc mcmax {args} { |
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| 31 | set max 0 |
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| 32 | foreach string $args { |
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| 33 | set len [string length $string] |
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| 34 | if {$len>$max} { |
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| 35 | set max $len |
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| 36 | } |
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| 37 | } |
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| 38 | return $max |
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| 39 | } |
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| 40 | } else { |
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| 41 | # Get the commands from the msgcat package that Tk uses. |
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| 42 | namespace import ::msgcat::mc |
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| 43 | namespace import ::msgcat::mcmax |
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| 44 | ::msgcat::mcload [file join $::tk_library msgs] |
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| 45 | } |
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| 46 | } |
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| 47 | namespace import ::tk::msgcat::* |
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| 48 | } |
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| 49 | |
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| 50 | # Add Tk's directory to the end of the auto-load search path, if it |
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| 51 | # isn't already on the path: |
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| 52 | |
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| 53 | if {[info exists ::auto_path] && [string compare {} $::tk_library] && \ |
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| 54 | [lsearch -exact $::auto_path $::tk_library] < 0} { |
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| 55 | lappend ::auto_path $::tk_library |
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| 56 | } |
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| 57 | |
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| 58 | # Turn off strict Motif look and feel as a default. |
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| 59 | |
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| 60 | set ::tk_strictMotif 0 |
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| 61 | |
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| 62 | # Turn on useinputmethods (X Input Methods) by default. |
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| 63 | # We catch this because safe interpreters may not allow the call. |
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| 64 | |
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| 65 | catch {tk useinputmethods 1} |
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| 66 | |
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| 67 | # ::tk::PlaceWindow -- |
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| 68 | # place a toplevel at a particular position |
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| 69 | # Arguments: |
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| 70 | # toplevel name of toplevel window |
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| 71 | # ?placement? pointer ?center? ; places $w centered on the pointer |
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| 72 | # widget widgetPath ; centers $w over widget_name |
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| 73 | # defaults to placing toplevel in the middle of the screen |
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| 74 | # ?anchor? center or widgetPath |
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| 75 | # Results: |
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| 76 | # Returns nothing |
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| 77 | # |
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| 78 | proc ::tk::PlaceWindow {w {place ""} {anchor ""}} { |
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| 79 | wm withdraw $w |
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| 80 | update idletasks |
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| 81 | set checkBounds 1 |
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| 82 | if {[string equal $place ""]} { |
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| 83 | set x [expr {([winfo screenwidth $w]-[winfo reqwidth $w])/2}] |
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| 84 | set y [expr {([winfo screenheight $w]-[winfo reqheight $w])/2}] |
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| 85 | set checkBounds 0 |
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| 86 | } elseif {[string equal -len [string length $place] $place "pointer"]} { |
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| 87 | ## place at POINTER (centered if $anchor == center) |
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| 88 | if {[string equal -len [string length $anchor] $anchor "center"]} { |
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| 89 | set x [expr {[winfo pointerx $w]-[winfo reqwidth $w]/2}] |
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| 90 | set y [expr {[winfo pointery $w]-[winfo reqheight $w]/2}] |
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| 91 | } else { |
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| 92 | set x [winfo pointerx $w] |
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| 93 | set y [winfo pointery $w] |
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| 94 | } |
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| 95 | } elseif {[string equal -len [string length $place] $place "widget"] && \ |
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| 96 | [winfo exists $anchor] && [winfo ismapped $anchor]} { |
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| 97 | ## center about WIDGET $anchor, widget must be mapped |
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| 98 | set x [expr {[winfo rootx $anchor] + \ |
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| 99 | ([winfo width $anchor]-[winfo reqwidth $w])/2}] |
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| 100 | set y [expr {[winfo rooty $anchor] + \ |
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| 101 | ([winfo height $anchor]-[winfo reqheight $w])/2}] |
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| 102 | } else { |
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| 103 | set x [expr {([winfo screenwidth $w]-[winfo reqwidth $w])/2}] |
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| 104 | set y [expr {([winfo screenheight $w]-[winfo reqheight $w])/2}] |
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| 105 | set checkBounds 0 |
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| 106 | } |
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| 107 | if {$checkBounds} { |
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| 108 | if {$x < 0} { |
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| 109 | set x 0 |
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| 110 | } elseif {$x > ([winfo screenwidth $w]-[winfo reqwidth $w])} { |
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| 111 | set x [expr {[winfo screenwidth $w]-[winfo reqwidth $w]}] |
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| 112 | } |
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| 113 | if {$y < 0} { |
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| 114 | set y 0 |
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| 115 | } elseif {$y > ([winfo screenheight $w]-[winfo reqheight $w])} { |
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| 116 | set y [expr {[winfo screenheight $w]-[winfo reqheight $w]}] |
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| 117 | } |
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| 118 | if {[tk windowingsystem] eq "macintosh" \ |
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| 119 | || [tk windowingsystem] eq "aqua"} { |
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| 120 | # Avoid the native menu bar which sits on top of everything. |
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| 121 | if {$y < 20} { set y 20 } |
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| 122 | } |
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| 123 | } |
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| 124 | wm geometry $w +$x+$y |
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| 125 | wm deiconify $w |
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| 126 | } |
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| 127 | |
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| 128 | # ::tk::SetFocusGrab -- |
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| 129 | # swap out current focus and grab temporarily (for dialogs) |
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| 130 | # Arguments: |
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| 131 | # grab new window to grab |
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| 132 | # focus window to give focus to |
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| 133 | # Results: |
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| 134 | # Returns nothing |
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| 135 | # |
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| 136 | proc ::tk::SetFocusGrab {grab {focus {}}} { |
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| 137 | set index "$grab,$focus" |
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| 138 | upvar ::tk::FocusGrab($index) data |
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| 139 | |
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| 140 | lappend data [focus] |
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| 141 | set oldGrab [grab current $grab] |
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| 142 | lappend data $oldGrab |
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| 143 | if {[winfo exists $oldGrab]} { |
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| 144 | lappend data [grab status $oldGrab] |
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| 145 | } |
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| 146 | # The "grab" command will fail if another application |
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| 147 | # already holds the grab. So catch it. |
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| 148 | catch {grab $grab} |
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| 149 | if {[winfo exists $focus]} { |
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| 150 | focus $focus |
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| 151 | } |
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| 152 | } |
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| 153 | |
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| 154 | # ::tk::RestoreFocusGrab -- |
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| 155 | # restore old focus and grab (for dialogs) |
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| 156 | # Arguments: |
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| 157 | # grab window that had taken grab |
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| 158 | # focus window that had taken focus |
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| 159 | # destroy destroy|withdraw - how to handle the old grabbed window |
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| 160 | # Results: |
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| 161 | # Returns nothing |
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| 162 | # |
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| 163 | proc ::tk::RestoreFocusGrab {grab focus {destroy destroy}} { |
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| 164 | set index "$grab,$focus" |
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| 165 | if {[info exists ::tk::FocusGrab($index)]} { |
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| 166 | foreach {oldFocus oldGrab oldStatus} $::tk::FocusGrab($index) { break } |
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| 167 | unset ::tk::FocusGrab($index) |
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| 168 | } else { |
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| 169 | set oldGrab "" |
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| 170 | } |
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| 171 | |
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| 172 | catch {focus $oldFocus} |
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| 173 | grab release $grab |
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| 174 | if {[string equal $destroy "withdraw"]} { |
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| 175 | wm withdraw $grab |
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| 176 | } else { |
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| 177 | destroy $grab |
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| 178 | } |
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| 179 | if {[winfo exists $oldGrab] && [winfo ismapped $oldGrab]} { |
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| 180 | if {[string equal $oldStatus "global"]} { |
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| 181 | grab -global $oldGrab |
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| 182 | } else { |
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| 183 | grab $oldGrab |
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| 184 | } |
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| 185 | } |
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| 186 | } |
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| 187 | |
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| 188 | # ::tk::GetSelection -- |
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| 189 | # This tries to obtain the default selection. On Unix, we first try |
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| 190 | # and get a UTF8_STRING, a type supported by modern Unix apps for |
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| 191 | # passing Unicode data safely. We fall back on the default STRING |
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| 192 | # type otherwise. On Windows, only the STRING type is necessary. |
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| 193 | # Arguments: |
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| 194 | # w The widget for which the selection will be retrieved. |
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| 195 | # Important for the -displayof property. |
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| 196 | # sel The source of the selection (PRIMARY or CLIPBOARD) |
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| 197 | # Results: |
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| 198 | # Returns the selection, or an error if none could be found |
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| 199 | # |
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| 200 | if {[string equal $tcl_platform(platform) "unix"]} { |
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| 201 | proc ::tk::GetSelection {w {sel PRIMARY}} { |
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| 202 | if {[catch {selection get -displayof $w -selection $sel \ |
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| 203 | -type UTF8_STRING} txt] \ |
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| 204 | && [catch {selection get -displayof $w -selection $sel} txt]} { |
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| 205 | return -code error "could not find default selection" |
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| 206 | } else { |
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| 207 | return $txt |
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| 208 | } |
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| 209 | } |
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| 210 | } else { |
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| 211 | proc ::tk::GetSelection {w {sel PRIMARY}} { |
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| 212 | if {[catch {selection get -displayof $w -selection $sel} txt]} { |
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| 213 | return -code error "could not find default selection" |
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| 214 | } else { |
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| 215 | return $txt |
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| 216 | } |
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| 217 | } |
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| 218 | } |
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| 219 | |
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| 220 | # ::tk::ScreenChanged -- |
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| 221 | # This procedure is invoked by the binding mechanism whenever the |
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| 222 | # "current" screen is changing. The procedure does two things. |
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| 223 | # First, it uses "upvar" to make variable "::tk::Priv" point at an |
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| 224 | # array variable that holds state for the current display. Second, |
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| 225 | # it initializes the array if it didn't already exist. |
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| 226 | # |
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| 227 | # Arguments: |
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| 228 | # screen - The name of the new screen. |
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| 229 | |
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| 230 | proc ::tk::ScreenChanged screen { |
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| 231 | set x [string last . $screen] |
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| 232 | if {$x > 0} { |
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| 233 | set disp [string range $screen 0 [expr {$x - 1}]] |
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| 234 | } else { |
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| 235 | set disp $screen |
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| 236 | } |
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| 237 | |
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| 238 | uplevel #0 upvar #0 ::tk::Priv.$disp ::tk::Priv |
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| 239 | variable ::tk::Priv |
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| 240 | global tcl_platform |
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| 241 | |
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| 242 | if {[info exists Priv]} { |
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| 243 | set Priv(screen) $screen |
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| 244 | return |
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| 245 | } |
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| 246 | array set Priv { |
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| 247 | activeMenu {} |
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| 248 | activeItem {} |
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| 249 | afterId {} |
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| 250 | buttons 0 |
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| 251 | buttonWindow {} |
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| 252 | dragging 0 |
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| 253 | focus {} |
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| 254 | grab {} |
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| 255 | initPos {} |
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| 256 | inMenubutton {} |
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| 257 | listboxPrev {} |
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| 258 | menuBar {} |
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| 259 | mouseMoved 0 |
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| 260 | oldGrab {} |
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| 261 | popup {} |
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| 262 | postedMb {} |
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| 263 | pressX 0 |
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| 264 | pressY 0 |
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| 265 | prevPos 0 |
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| 266 | selectMode char |
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| 267 | } |
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| 268 | set Priv(screen) $screen |
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| 269 | set Priv(tearoff) [string equal [tk windowingsystem] "x11"] |
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| 270 | set Priv(window) {} |
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| 271 | } |
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| 272 | |
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| 273 | # Do initial setup for Priv, so that it is always bound to something |
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| 274 | # (otherwise, if someone references it, it may get set to a non-upvar-ed |
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| 275 | # value, which will cause trouble later). |
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| 276 | |
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| 277 | tk::ScreenChanged [winfo screen .] |
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| 278 | |
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| 279 | # ::tk::EventMotifBindings -- |
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| 280 | # This procedure is invoked as a trace whenever ::tk_strictMotif is |
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| 281 | # changed. It is used to turn on or turn off the motif virtual |
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| 282 | # bindings. |
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| 283 | # |
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| 284 | # Arguments: |
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| 285 | # n1 - the name of the variable being changed ("::tk_strictMotif"). |
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| 286 | |
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| 287 | proc ::tk::EventMotifBindings {n1 dummy dummy} { |
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| 288 | upvar $n1 name |
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| 289 | |
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| 290 | if {$name} { |
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| 291 | set op delete |
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| 292 | } else { |
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| 293 | set op add |
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| 294 | } |
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| 295 | |
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| 296 | event $op <<Cut>> <Control-Key-w> |
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| 297 | event $op <<Copy>> <Meta-Key-w> |
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| 298 | event $op <<Paste>> <Control-Key-y> |
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| 299 | event $op <<Undo>> <Control-underscore> |
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| 300 | } |
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| 301 | |
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| 302 | #---------------------------------------------------------------------- |
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| 303 | # Define common dialogs on platforms where they are not implemented |
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| 304 | # using compiled code. |
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| 305 | #---------------------------------------------------------------------- |
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| 306 | |
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| 307 | if {[string equal [info commands tk_chooseColor] ""]} { |
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| 308 | proc ::tk_chooseColor {args} { |
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| 309 | return [eval tk::dialog::color:: $args] |
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| 310 | } |
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| 311 | } |
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| 312 | if {[string equal [info commands tk_getOpenFile] ""]} { |
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| 313 | proc ::tk_getOpenFile {args} { |
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| 314 | if {$::tk_strictMotif} { |
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| 315 | return [eval tk::MotifFDialog open $args] |
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| 316 | } else { |
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| 317 | return [eval ::tk::dialog::file:: open $args] |
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| 318 | } |
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| 319 | } |
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| 320 | } |
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| 321 | if {[string equal [info commands tk_getSaveFile] ""]} { |
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| 322 | proc ::tk_getSaveFile {args} { |
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| 323 | if {$::tk_strictMotif} { |
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| 324 | return [eval tk::MotifFDialog save $args] |
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| 325 | } else { |
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| 326 | return [eval ::tk::dialog::file:: save $args] |
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| 327 | } |
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| 328 | } |
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| 329 | } |
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| 330 | if {[string equal [info commands tk_messageBox] ""]} { |
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| 331 | proc ::tk_messageBox {args} { |
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| 332 | return [eval tk::MessageBox $args] |
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| 333 | } |
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| 334 | } |
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| 335 | if {[string equal [info command tk_chooseDirectory] ""]} { |
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| 336 | proc ::tk_chooseDirectory {args} { |
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| 337 | return [eval ::tk::dialog::file::chooseDir:: $args] |
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| 338 | } |
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| 339 | } |
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| 340 | |
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| 341 | #---------------------------------------------------------------------- |
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| 342 | # Define the set of common virtual events. |
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| 343 | #---------------------------------------------------------------------- |
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| 344 | |
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| 345 | switch [tk windowingsystem] { |
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| 346 | "x11" { |
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| 347 | event add <<Cut>> <Control-Key-x> <Key-F20> |
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| 348 | event add <<Copy>> <Control-Key-c> <Key-F16> |
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| 349 | event add <<Paste>> <Control-Key-v> <Key-F18> |
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| 350 | event add <<PasteSelection>> <ButtonRelease-2> |
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| 351 | event add <<Undo>> <Control-Key-z> |
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| 352 | event add <<Redo>> <Control-Key-Z> |
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| 353 | # Some OS's define a goofy (as in, not <Shift-Tab>) keysym |
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| 354 | # that is returned when the user presses <Shift-Tab>. In order for |
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| 355 | # tab traversal to work, we have to add these keysyms to the |
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| 356 | # PrevWindow event. |
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| 357 | # We use catch just in case the keysym isn't recognized. |
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| 358 | # This is needed for XFree86 systems |
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| 359 | catch { event add <<PrevWindow>> <ISO_Left_Tab> } |
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| 360 | # This seems to be correct on *some* HP systems. |
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| 361 | catch { event add <<PrevWindow>> <hpBackTab> } |
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| 362 | |
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| 363 | trace variable ::tk_strictMotif w ::tk::EventMotifBindings |
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| 364 | set ::tk_strictMotif $::tk_strictMotif |
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| 365 | } |
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| 366 | "win32" { |
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| 367 | event add <<Cut>> <Control-Key-x> <Shift-Key-Delete> |
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| 368 | event add <<Copy>> <Control-Key-c> <Control-Key-Insert> |
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| 369 | event add <<Paste>> <Control-Key-v> <Shift-Key-Insert> |
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| 370 | event add <<PasteSelection>> <ButtonRelease-2> |
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| 371 | event add <<Undo>> <Control-Key-z> |
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| 372 | event add <<Redo>> <Control-Key-y> |
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| 373 | } |
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| 374 | "aqua" { |
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| 375 | event add <<Cut>> <Command-Key-x> <Key-F2> |
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| 376 | event add <<Copy>> <Command-Key-c> <Key-F3> |
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| 377 | event add <<Paste>> <Command-Key-v> <Key-F4> |
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| 378 | event add <<PasteSelection>> <ButtonRelease-2> |
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| 379 | event add <<Clear>> <Clear> |
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| 380 | event add <<Undo>> <Command-Key-z> |
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| 381 | event add <<Redo>> <Command-Key-y> |
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| 382 | } |
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| 383 | "classic" { |
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| 384 | event add <<Cut>> <Control-Key-x> <Key-F2> |
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| 385 | event add <<Copy>> <Control-Key-c> <Key-F3> |
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| 386 | event add <<Paste>> <Control-Key-v> <Key-F4> |
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| 387 | event add <<PasteSelection>> <ButtonRelease-2> |
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| 388 | event add <<Clear>> <Clear> |
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| 389 | event add <<Undo>> <Control-Key-z> <Key-F1> |
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| 390 | event add <<Redo>> <Control-Key-Z> |
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| 391 | } |
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| 392 | } |
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| 393 | # ---------------------------------------------------------------------- |
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| 394 | # Read in files that define all of the class bindings. |
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| 395 | # ---------------------------------------------------------------------- |
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| 396 | |
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| 397 | if {$::tk_library ne ""} { |
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| 398 | if {[string equal $tcl_platform(platform) "macintosh"]} { |
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| 399 | proc ::tk::SourceLibFile {file} { |
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| 400 | if {[catch { |
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| 401 | namespace eval :: \ |
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| 402 | [list source [file join $::tk_library $file.tcl]] |
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| 403 | }]} { |
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| 404 | namespace eval :: [list source -rsrc $file] |
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| 405 | } |
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| 406 | } |
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| 407 | } else { |
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| 408 | proc ::tk::SourceLibFile {file} { |
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| 409 | namespace eval :: [list source [file join $::tk_library $file.tcl]] |
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| 410 | } |
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| 411 | } |
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| 412 | namespace eval ::tk { |
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| 413 | SourceLibFile button |
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| 414 | SourceLibFile entry |
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| 415 | SourceLibFile listbox |
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| 416 | SourceLibFile menu |
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| 417 | SourceLibFile panedwindow |
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| 418 | SourceLibFile scale |
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| 419 | SourceLibFile scrlbar |
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| 420 | SourceLibFile spinbox |
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| 421 | SourceLibFile text |
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| 422 | } |
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| 423 | } |
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| 424 | # ---------------------------------------------------------------------- |
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| 425 | # Default bindings for keyboard traversal. |
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| 426 | # ---------------------------------------------------------------------- |
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| 427 | |
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| 428 | event add <<PrevWindow>> <Shift-Tab> |
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| 429 | bind all <Tab> {tk::TabToWindow [tk_focusNext %W]} |
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| 430 | bind all <<PrevWindow>> {tk::TabToWindow [tk_focusPrev %W]} |
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| 431 | |
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| 432 | # ::tk::CancelRepeat -- |
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| 433 | # This procedure is invoked to cancel an auto-repeat action described |
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| 434 | # by ::tk::Priv(afterId). It's used by several widgets to auto-scroll |
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| 435 | # the widget when the mouse is dragged out of the widget with a |
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| 436 | # button pressed. |
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| 437 | # |
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| 438 | # Arguments: |
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| 439 | # None. |
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| 440 | |
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| 441 | proc ::tk::CancelRepeat {} { |
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| 442 | variable ::tk::Priv |
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| 443 | after cancel $Priv(afterId) |
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| 444 | set Priv(afterId) {} |
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| 445 | } |
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| 446 | |
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| 447 | # ::tk::TabToWindow -- |
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| 448 | # This procedure moves the focus to the given widget. If the widget |
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| 449 | # is an entry or a spinbox, it selects the entire contents of the widget. |
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| 450 | # |
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| 451 | # Arguments: |
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| 452 | # w - Window to which focus should be set. |
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| 453 | |
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| 454 | proc ::tk::TabToWindow {w} { |
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| 455 | if {[string equal [winfo class $w] Entry] \ |
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| 456 | || [string equal [winfo class $w] Spinbox]} { |
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| 457 | $w selection range 0 end |
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| 458 | $w icursor end |
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| 459 | } |
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| 460 | focus $w |
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| 461 | } |
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| 462 | |
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| 463 | # ::tk::UnderlineAmpersand -- |
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| 464 | # This procedure takes some text with ampersand and returns |
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| 465 | # text w/o ampersand and position of the ampersand. |
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| 466 | # Double ampersands are converted to single ones. |
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| 467 | # Position returned is -1 when there is no ampersand. |
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| 468 | # |
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| 469 | proc ::tk::UnderlineAmpersand {text} { |
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| 470 | set idx [string first "&" $text] |
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| 471 | if {$idx >= 0} { |
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| 472 | set underline $idx |
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| 473 | # ignore "&&" |
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| 474 | while {[string match "&" [string index $text [expr {$idx + 1}]]]} { |
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| 475 | set base [expr {$idx + 2}] |
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| 476 | set idx [string first "&" [string range $text $base end]] |
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| 477 | if {$idx < 0} { |
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| 478 | break |
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| 479 | } else { |
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| 480 | set underline [expr {$underline + $idx + 1}] |
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| 481 | incr idx $base |
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| 482 | } |
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| 483 | } |
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| 484 | } |
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| 485 | if {$idx >= 0} { |
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| 486 | regsub -all -- {&([^&])} $text {\1} text |
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| 487 | } |
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| 488 | return [list $text $idx] |
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| 489 | } |
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| 490 | |
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| 491 | # ::tk::SetAmpText -- |
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| 492 | # Given widget path and text with "magic ampersands", |
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| 493 | # sets -text and -underline options for the widget |
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| 494 | # |
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| 495 | proc ::tk::SetAmpText {widget text} { |
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| 496 | foreach {newtext under} [::tk::UnderlineAmpersand $text] { |
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| 497 | $widget configure -text $newtext -underline $under |
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| 498 | } |
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| 499 | } |
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| 500 | |
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| 501 | # ::tk::AmpWidget -- |
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| 502 | # Creates new widget, turning -text option into -text and |
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| 503 | # -underline options, returned by ::tk::UnderlineAmpersand. |
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| 504 | # |
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| 505 | proc ::tk::AmpWidget {class path args} { |
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| 506 | set wcmd [list $class $path] |
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| 507 | foreach {opt val} $args { |
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| 508 | if {[string equal $opt {-text}]} { |
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| 509 | foreach {newtext under} [::tk::UnderlineAmpersand $val] { |
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| 510 | lappend wcmd -text $newtext -underline $under |
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| 511 | } |
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| 512 | } else { |
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| 513 | lappend wcmd $opt $val |
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| 514 | } |
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| 515 | } |
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| 516 | eval $wcmd |
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| 517 | if {$class=="button"} { |
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| 518 | bind $path <<AltUnderlined>> [list $path invoke] |
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| 519 | } |
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| 520 | return $path |
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| 521 | } |
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| 522 | |
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| 523 | # ::tk::FindAltKeyTarget -- |
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| 524 | # search recursively through the hierarchy of visible widgets |
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| 525 | # to find button or label which has $char as underlined character |
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| 526 | # |
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| 527 | proc ::tk::FindAltKeyTarget {path char} { |
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| 528 | switch [winfo class $path] { |
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| 529 | Button - |
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| 530 | Label { |
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| 531 | if {[string equal -nocase $char \ |
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| 532 | [string index [$path cget -text] \ |
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| 533 | [$path cget -underline]]]} {return $path} else {return {}} |
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| 534 | } |
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| 535 | default { |
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| 536 | foreach child \ |
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| 537 | [concat [grid slaves $path] \ |
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| 538 | [pack slaves $path] \ |
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| 539 | [place slaves $path] ] { |
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| 540 | if {""!=[set target [::tk::FindAltKeyTarget $child $char]]} { |
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| 541 | return $target |
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| 542 | } |
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| 543 | } |
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| 544 | } |
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| 545 | } |
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| 546 | return {} |
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| 547 | } |
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| 548 | |
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| 549 | # ::tk::AltKeyInDialog -- |
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| 550 | # <Alt-Key> event handler for standard dialogs. Sends <<AltUnderlined>> |
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| 551 | # to button or label which has appropriate underlined character |
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| 552 | # |
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| 553 | proc ::tk::AltKeyInDialog {path key} { |
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| 554 | set target [::tk::FindAltKeyTarget $path $key] |
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| 555 | if { $target == ""} return |
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| 556 | event generate $target <<AltUnderlined>> |
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| 557 | } |
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| 558 | |
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| 559 | # ::tk::mcmaxamp -- |
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| 560 | # Replacement for mcmax, used for texts with "magic ampersand" in it. |
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| 561 | # |
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| 562 | |
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| 563 | proc ::tk::mcmaxamp {args} { |
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| 564 | set maxlen 0 |
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| 565 | foreach arg $args { |
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| 566 | set length [string length [lindex [::tk::UnderlineAmpersand [mc $arg]] 0]] |
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| 567 | if {$length>$maxlen} { |
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| 568 | set maxlen $length |
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| 569 | } |
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| 570 | } |
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| 571 | return $maxlen |
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| 572 | } |
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| 573 | # For now, turn off the custom mdef proc for the mac: |
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| 574 | |
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| 575 | if {[string equal [tk windowingsystem] "aqua"]} { |
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| 576 | namespace eval ::tk::mac { |
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| 577 | set useCustomMDEF 0 |
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| 578 | } |
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| 579 | } |
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