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Diffstat (limited to 'library/ttk/keynav.tcl')
| -rw-r--r-- | library/ttk/keynav.tcl | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/library/ttk/keynav.tcl b/library/ttk/keynav.tcl deleted file mode 100644 index 090c8f5..0000000 --- a/library/ttk/keynav.tcl +++ /dev/null @@ -1,163 +0,0 @@ -######################################################################## -# keynav package - Enhanced keyboard navigation -# Copyright (C) 2003 Joe English -# Freely redistributable; see the file license.terms for details. -# -# $Id: keynav.tcl,v 1.1 2006/10/31 01:42:27 hobbs Exp $ -# -######################################################################## -# -# Usage: -# -# package require keynav -# -# keynav::enableMnemonics $toplevel -- -# Enable mnemonic accelerators for toplevel widget. Pressing Alt-K, -# where K is any alphanumeric key, will send an <<Invoke>> event to the -# widget with mnemonic K (as determined by the -underline and -text -# options). -# -# Side effects: adds a binding for <Alt-KeyPress> to $toplevel -# -# keynav::defaultButton $button -- -# Enables default activation for the toplevel window in which $button -# appears. Pressing <Key-Return> invokes the default widget. The -# default widget is set to the widget with keyboard focus if it is -# defaultable, otherwise $button. A widget is _defaultable_ if it has -# a -default option which is not set to "disabled". -# -# Side effects: adds <FocusIn> and <KeyPress-Return> bindings -# to the toplevel containing $button, and a <Destroy> binding -# to $button. -# -# $button must be a defaultable widget. -# - -namespace eval keynav {} - -package require Tcl 8.4 -package require Tk 8.4 -package provide keynav 1.0 - -event add <<Help>> <KeyPress-F1> - -# -# Bindings for stock Tk widgets: -# (NB: for 8.3 use tkButtonInvoke, tkMbPost instead) -# -bind Button <<Invoke>> { tk::ButtonInvoke %W } -bind Checkbutton <<Invoke>> { tk::ButtonInvoke %W } -bind Radiobutton <<Invoke>> { tk::ButtonInvoke %W } -bind Menubutton <<Invoke>> { tk::MbPost %W } - -proc keynav::enableMnemonics {w} { - bind [winfo toplevel $w] <Alt-KeyPress> {+ keynav::Alt-KeyPress %W %K } -} - -# mnemonic $w -- -# Return the mnemonic character for widget $w, -# as determined by the -text and -underline resources. -# -proc keynav::mnemonic {w} { - if {[catch { - set label [$w cget -text] - set underline [$w cget -underline] - }]} { return "" } - return [string index $label $underline] -} - -# FindMnemonic $w $key -- -# Locate the descendant of $w with mnemonic $key. -# -proc keynav::FindMnemonic {w key} { - if {[string length $key] != 1} { return } - set Q [list [set top [winfo toplevel $w]]] - while {[llength $Q]} { - set QN [list] - foreach w $Q { - if {[string equal -nocase $key [mnemonic $w]]} { - return $w - } - foreach c [winfo children $w] { - if {[winfo ismapped $c] && [winfo toplevel $c] eq $top} { - lappend QN $c - } - } - } - set Q $QN - } - return {} -} - -# Alt-KeyPress -- -# Alt-KeyPress binding for toplevels with mnemonic accelerators enabled. -# -proc keynav::Alt-KeyPress {w k} { - set w [FindMnemonic $w $k] - if {$w ne ""} { - event generate $w <<Invoke>> - return -code break - } -} - -# defaultButton $w -- -# Enable default activation for the toplevel containing $w, -# and make $w the default default widget. -# -proc keynav::defaultButton {w} { - variable DefaultButton - - $w configure -default active - set top [winfo toplevel $w] - set DefaultButton(current.$top) $w - set DefaultButton(default.$top) $w - - bind $w <Destroy> [list keynav::CleanupDefault $top] - bind $top <FocusIn> [list keynav::ClaimDefault $top %W] - bind $top <KeyPress-Return> [list keynav::ActivateDefault $top] -} - -proc keynav::CleanupDefault {top} { - variable DefaultButton - unset DefaultButton(current.$top) - unset DefaultButton(default.$top) -} - -# ClaimDefault $top $w -- -# <FocusIn> binding for default activation. -# Sets the default widget to $w if it is defaultable, -# otherwise set it to the default default. -# -proc keynav::ClaimDefault {top w} { - variable DefaultButton - if {![info exists DefaultButton(current.$top)]} { - # Someone destroyed the default default, but not - # the rest of the toplevel. - return; - } - - set default $DefaultButton(default.$top) - if {![catch {$w cget -default} dstate] && $dstate ne "disabled"} { - set default $w - } - - if {$default ne $DefaultButton(current.$top)} { - # Ignore errors -- someone may have destroyed the current default - catch { $DefaultButton(current.$top) configure -default normal } - $default configure -default active - set DefaultButton(current.$top) $default - } -} - -# ActivateDefault -- -# Invoke the default widget for toplevel window, if any. -# -proc keynav::ActivateDefault {top} { - variable DefaultButton - if {[info exists DefaultButton(current.$top)] - && [winfo exists $DefaultButton(current.$top)]} { - event generate $DefaultButton(current.$top) <<Invoke>> - } -} - -#*EOF* |