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# Nf Screen designer for Tk toolkit
# Copyright (C) 2004 Jeff Epler <jepler@unpythonic.net>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
namespace eval ::cb {}
foreach b [bind Checkbutton] {
bind ::cb::nicer_cb $b { after cancel ::cb::nicer_cb_update %W; after idle ::cb::nicer_cb_update %W }
bind ::cb::nicer_cb_b $b [subst -nocommands {
event generate [winfo parent %W] $b \
-button %b -state %s -time %t -x %x -y %y \
-rootx %X -rooty %Y
}]
}
foreach b {<Enter> <Leave>} {
bind ::cb::nicer_cb_b $b {}
}
bind ::cb::nicer_cb <Configure> { after cancel ::cb::nicer_cb_configure %W; after idle ::cb::nicer_cb_configure %W }
image create photo ::cb::check.normal.0 -file $imagedir/cbn0.gif
image create photo ::cb::check.disabled.0 -file $imagedir/cbd0.gif
image create photo ::cb::check.active.0 -file $imagedir/cba0.gif
image create photo ::cb::check.normal.1 -file $imagedir/cbn1.gif
image create photo ::cb::check.disabled.1 -file $imagedir/cbd1.gif
image create photo ::cb::check.active.1 -file $imagedir/cba1.gif
proc ::cb::nicer_cb_update {w args} {
if {![winfo exists $w]} { return }
set state [::cb::_$w cget -state]
set var [::cb::_$w cget -variable]
upvar \#0 $var val
set is_on [expr {"[::cb::_$w cget -onvalue]" == "$val"}]
if {$state == "disabled"} { set bstate normal } else { set bstate $state }
$w._button configure -image ::cb::check.$state.$is_on -state $bstate
}
proc ::cb::nicer_cb {w} {
set v [::cb::_$w cget -variable]
upvar \#0 $v var
trace variable var w [list ::cb::nicer_cb_update $w]
button $w._button -bd 0 -highlightt 0 -takefocus 0
bind $w._button <Destroy> [list trace vdelete $v w [list ::cb::nicer_cb_update $w]]
::cb::nicer_cb_configure $w
}
proc ::cb::nicer_cb_configure {w} {
if {![::cb::_$w cget -indicatoron]} { place forget $w._button; return }
set anchor [::cb::_$w cget -anchor]
if {[::cb::_$w cget -width] != 0 && $anchor != "w"
&& $anchor != "nw" && $anchor != "sw"} {
::cb::_$w configure -anchor w
}
set hasimage [expr {"[::cb::_$w cget -image]" != ""}]
set loss [expr 2*[::cb::_$w cget -bd] - 2*[::cb::_$w cget -highlightt]]
if {$hasimage} {
set sz [winfo reqheight $w]
} else {
set sz [font metrics [::cb::_$w cget -font] -linespace]
}
set sz [expr $sz - $loss]
set ofs [expr [winfo width $w] - [winfo reqwidth $w]]
switch $anchor {
center - n - s {
set x [expr $ofs/2]
}
ne - e - se {
set x $ofs
}
nw - w - sw {
set x 0
}
default {
set x 0
}
}
set height [expr [winfo height $w]-2*[::cb::_$w cget -highlightthickness]-2]
place $w._button -x $x -y 0 -width $sz -height $height
if {[lsearch [bindtags $w] ::cb::nicer_cb] == -1} {
bindtags $w [concat ::cb::nicer_cb [bindtags $w]]
bindtags $w._button [list ::cb::nicer_cb_b [winfo toplevel $w] all]
}
::cb::nicer_cb_update $w
}
proc ::cb::install {} {
if {$::tk_version >= "8.5"} { return }
rename ::checkbutton ::cb::real_checkbutton
proc ::checkbutton { path args } {
eval [concat ::cb::real_checkbutton $path $args]
if {[winfo toplevel $path] != "."} { return $path }
rename $path ::cb::_$path
proc $path { args } [subst -nocommands {
set ret [eval [concat ::cb::_$path \$args]]
::cb::nicer_cb_configure $path
set ret
}]
::cb::nicer_cb $path
set path
}
}
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