109 lines
3.8 KiB
Tcl
109 lines
3.8 KiB
Tcl
# Nf Screen designer for Tk toolkit
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# Copyright (C) 2004 Jeff Epler <jepler@unpythonic.net>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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namespace eval ::sb {}
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proc ::sb::arrow_size_vertical {w} {
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set xx [expr [::sb::_$w cget -bd]+1]
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for {set i [expr [::sb::_$w cget -bd]+1]} {1} {incr i} {
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set part [::sb::_$w identify $xx $i]
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if {$part != "arrow1"} { return $i }
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}
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}
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proc ::sb::arrow_size_horizontal {w} {
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set yy [expr [::sb::_$w cget -bd]+1]
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for {set i [expr [::sb::_$w cget -bd]+1]} {1} {incr i} {
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set part [::sb::_$w identify $i $yy]
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if {$part != "arrow1"} { return $i }
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}
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}
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image create bitmap ::sb::uparrow -file $imagedir/uparrow.xbm
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image create bitmap ::sb::downarrow -file $imagedir/downarrow.xbm
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image create bitmap ::sb::leftarrow -file $imagedir/leftarrow.xbm
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image create bitmap ::sb::rightarrow -file $imagedir/rightarrow.xbm
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bind ::sb::nicer <Configure> { ::sb::nicer_config %W }
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proc ::sb::nicer_sb {w} {
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bindtags $w [concat ::sb::nicer [bindtags $w]]
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::sb::_$w configure -bd 0 -highlightt 0
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::sb::nicer_config $w
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}
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proc ::sb::nicer_config {w} {
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set o [::sb::_$w cget -orient]
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if {![winfo exists ${w}._arrow1]} {
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button ${w}._arrow1
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}
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if {![winfo exists ${w}._arrow2]} {
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button ${w}._arrow2
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}
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if {[string match "v*" $o]} {
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set sz [::sb::arrow_size_vertical $w]
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set width [winfo width $w]
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${w}._arrow1 config -image ::sb::uparrow -takefocus 0 -highlightt 0 \
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-anchor center
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${w}._arrow2 config -image ::sb::downarrow -takefocus 0 -highlightt 0 \
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-anchor center
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place ${w}._arrow1 -x 0 -y 0 \
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-width $width -height $sz
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place ${w}._arrow2 -x 0 -y [expr [winfo height $w]-$sz] \
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-width $width -height $sz
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} else {
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set sz [::sb::arrow_size_horizontal $w]
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set height [winfo height $w]
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${w}._arrow1 config -image ::sb::leftarrow -takefocus 0 -highlightt 0 \
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-anchor center
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${w}._arrow2 config -image ::sb::rightarrow -takefocus 0 -highlightt 0 \
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-anchor center
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place ${w}._arrow1 -x 0 -y 0 \
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-width $sz -height $height
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place ${w}._arrow2 -x [expr [winfo width $w]-$sz] -y 0 \
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-width $sz -height $height
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}
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foreach b {
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<1> <B1-Leave> <ButtonRelease-1> <B1-Enter> <Leave> <Enter>
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} {
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bind ${w}._arrow1 $b [subst -nocommands {
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event generate $w $b \
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-x [expr %x+[winfo x %W]] \
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-y [expr %y+[winfo y %W]]
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}]
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bind ${w}._arrow2 $b [subst -nocommands {
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event generate $w $b \
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-x [expr %x+[winfo x %W]] \
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-y [expr %y+[winfo y %W]]
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}]
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}
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}
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proc ::sb::install {} {
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rename ::scrollbar ::sb::real_scrollbar
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proc ::scrollbar { path args } {
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eval [concat ::sb::real_scrollbar $path $args]
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rename $path ::sb::_$path
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proc $path { args } [subst -nocommands {
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set ret [eval [concat ::sb::_$path \$args]]
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::sb::nicer_config $path
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set ret
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}]
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::sb::nicer_sb $path
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set path
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}
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}
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