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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
namespace eval ::sb {}
proc ::sb::arrow_size_vertical {w} {
set xx [expr [::sb::_$w cget -bd]+1]
for {set i [expr [::sb::_$w cget -bd]+1]} {1} {incr i} {
set part [::sb::_$w identify $xx $i]
if {$part != "arrow1"} { return $i }
}
}
proc ::sb::arrow_size_horizontal {w} {
set yy [expr [::sb::_$w cget -bd]+1]
for {set i [expr [::sb::_$w cget -bd]+1]} {1} {incr i} {
set part [::sb::_$w identify $i $yy]
if {$part != "arrow1"} { return $i }
}
}
image create bitmap ::sb::uparrow -file $imagedir/uparrow.xbm
image create bitmap ::sb::downarrow -file $imagedir/downarrow.xbm
image create bitmap ::sb::leftarrow -file $imagedir/leftarrow.xbm
image create bitmap ::sb::rightarrow -file $imagedir/rightarrow.xbm
bind ::sb::nicer <Configure> { ::sb::nicer_config %W }
proc ::sb::nicer_sb {w} {
bindtags $w [concat ::sb::nicer [bindtags $w]]
::sb::_$w configure -bd 0 -highlightt 0
::sb::nicer_config $w
}
proc ::sb::nicer_config {w} {
set o [::sb::_$w cget -orient]
if {![winfo exists ${w}._arrow1]} {
button ${w}._arrow1
}
if {![winfo exists ${w}._arrow2]} {
button ${w}._arrow2
}
if {[string match "v*" $o]} {
set sz [::sb::arrow_size_vertical $w]
set width [winfo width $w]
${w}._arrow1 config -image ::sb::uparrow -takefocus 0 -highlightt 0 \
-anchor center
${w}._arrow2 config -image ::sb::downarrow -takefocus 0 -highlightt 0 \
-anchor center
place ${w}._arrow1 -x 0 -y 0 \
-width $width -height $sz
place ${w}._arrow2 -x 0 -y [expr [winfo height $w]-$sz] \
-width $width -height $sz
} else {
set sz [::sb::arrow_size_horizontal $w]
set height [winfo height $w]
${w}._arrow1 config -image ::sb::leftarrow -takefocus 0 -highlightt 0 \
-anchor center
${w}._arrow2 config -image ::sb::rightarrow -takefocus 0 -highlightt 0 \
-anchor center
place ${w}._arrow1 -x 0 -y 0 \
-width $sz -height $height
place ${w}._arrow2 -x [expr [winfo width $w]-$sz] -y 0 \
-width $sz -height $height
}
foreach b {
<1> <B1-Leave> <ButtonRelease-1> <B1-Enter> <Leave> <Enter>
} {
bind ${w}._arrow1 $b [subst -nocommands {
event generate $w $b \
-x [expr %x+[winfo x %W]] \
-y [expr %y+[winfo y %W]]
}]
bind ${w}._arrow2 $b [subst -nocommands {
event generate $w $b \
-x [expr %x+[winfo x %W]] \
-y [expr %y+[winfo y %W]]
}]
}
}
proc ::sb::install {} {
rename ::scrollbar ::sb::real_scrollbar
proc ::scrollbar { path args } {
eval [concat ::sb::real_scrollbar $path $args]
rename $path ::sb::_$path
proc $path { args } [subst -nocommands {
set ret [eval [concat ::sb::_$path \$args]]
::sb::nicer_config $path
set ret
}]
::sb::nicer_sb $path
set path
}
}
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