/usr/lib/grass64/bwidget/scrollframe.tcl is in grass-gui 6.4.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# scrollframe.tcl
# This file is part of Unifix BWidget Toolkit
# $Id: scrollframe.tcl 10192 2002-01-24 19:25:32Z radim $
# ------------------------------------------------------------------------------
# Index of commands:
# - ScrollableFrame::create
# - ScrollableFrame::configure
# - ScrollableFrame::cget
# - ScrollableFrame::getframe
# - ScrollableFrame::see
# - ScrollableFrame::xview
# - ScrollableFrame::yview
# - ScrollableFrame::_resize
# ------------------------------------------------------------------------------
namespace eval ScrollableFrame {
Widget::declare ScrollableFrame {
{-background TkResource "" 0 frame}
{-width Int 0 0 {}}
{-height Int 0 0 {}}
{-areawidth Int 0 0 {}}
{-areaheight Int 0 0 {}}
{-constrainedwidth Boolean 0 0}
{-constrainedheight Boolean 0 0}
{-xscrollcommand TkResource "" 0 canvas}
{-yscrollcommand TkResource "" 0 canvas}
{-xscrollincrement TkResource "" 0 canvas}
{-yscrollincrement TkResource "" 0 canvas}
{-bg Synonym -background}
}
Widget::addmap ScrollableFrame "" :cmd {
-background {} -width {} -height {}
-xscrollcommand {} -yscrollcommand {}
-xscrollincrement {} -yscrollincrement {}
}
Widget::addmap ScrollableFrame "" .frame {-background {}}
variable _widget
bind BwScrollableFrame <Configure> {ScrollableFrame::_resize %W}
bind BwScrollableFrame <Destroy> {Widget::destroy %W; rename %W {}}
proc ::ScrollableFrame { path args } { return [eval ScrollableFrame::create $path $args] }
proc use {} {}
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::create
# ------------------------------------------------------------------------------
proc ScrollableFrame::create { path args } {
Widget::init ScrollableFrame $path $args
set canvas [eval canvas $path [Widget::subcget $path :cmd] \
-highlightthickness 0 -borderwidth 0 -relief flat]
set frame [eval frame $path.frame [Widget::subcget $path .frame] \
-highlightthickness 0 -borderwidth 0 -relief flat]
$canvas create window 0 0 -anchor nw -window $frame -tags win \
-width [Widget::cget $path -areawidth] \
-height [Widget::cget $path -areaheight]
bind $frame <Configure> "$canvas:cmd configure -scrollregion {0 0 %w %h}"
bindtags $path [list $path BwScrollableFrame [winfo toplevel $path] all]
rename $path ::$path:cmd
proc ::$path { cmd args } "return \[eval ScrollableFrame::\$cmd $path \$args\]"
return $canvas
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::configure
# ------------------------------------------------------------------------------
proc ScrollableFrame::configure { path args } {
set res [Widget::configure $path $args]
set upd 0
set modcw [Widget::hasChanged $path -constrainedwidth cw]
set modw [Widget::hasChanged $path -areawidth w]
if { $modcw || (!$cw && $modw) } {
if { $cw } {
set w [winfo width $path]
}
set upd 1
}
set modch [Widget::hasChanged $path -constrainedheight ch]
set modh [Widget::hasChanged $path -areaheight h]
if { $modch || (!$ch && $modh) } {
if { $ch } {
set h [winfo height $path]
}
set upd 1
}
if { $upd } {
$path:cmd itemconfigure win -width $w -height $h
}
return $res
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::cget
# ------------------------------------------------------------------------------
proc ScrollableFrame::cget { path option } {
return [Widget::cget $path $option]
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::getframe
# ------------------------------------------------------------------------------
proc ScrollableFrame::getframe { path } {
return $path.frame
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::see
# ------------------------------------------------------------------------------
proc ScrollableFrame::see { path widget {vert top} {horz left}} {
set x0 [winfo x $widget]
set y0 [winfo y $widget]
set x1 [expr {$x0+[winfo width $widget]}]
set y1 [expr {$y0+[winfo height $widget]}]
set xb0 [$path:cmd canvasx 0]
set yb0 [$path:cmd canvasy 0]
set xb1 [$path:cmd canvasx [winfo width $path]]
set yb1 [$path:cmd canvasy [winfo height $path]]
set dx 0
set dy 0
if { ![string compare $horz "left"] } {
if { $x1 > $xb1 } {
set dx [expr {$x1-$xb1}]
}
if { $x0 < $xb0+$dx } {
set dx [expr {$x0-$xb0}]
}
} elseif { ![string compare $horz "right"] } {
if { $x0 < $xb0 } {
set dx [expr {$x0-$xb0}]
}
if { $x1 > $xb1+$dx } {
set dx [expr {$x1-$xb1}]
}
}
if { ![string compare $vert "top"] } {
if { $y1 > $yb1 } {
set dy [expr {$y1-$yb1}]
}
if { $y0 < $yb0+$dy } {
set dy [expr {$y0-$yb0}]
}
} elseif { ![string compare $vert "bottom"] } {
if { $y0 < $yb0 } {
set dy [expr {$y0-$yb0}]
}
if { $y1 > $yb1+$dy } {
set dy [expr {$y1-$yb1}]
}
}
if { $dx != 0 } {
set x [expr {($xb0+$dx)/[winfo width $path.frame]}]
$path:cmd xview moveto $x
}
if { $dy != 0 } {
set y [expr {($yb0+$dy)/[winfo height $path.frame]}]
$path:cmd yview moveto $y
}
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::xview
# ------------------------------------------------------------------------------
proc ScrollableFrame::xview { path args } {
return [eval $path:cmd xview $args]
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::yview
# ------------------------------------------------------------------------------
proc ScrollableFrame::yview { path args } {
return [eval $path:cmd yview $args]
}
# ------------------------------------------------------------------------------
# Command ScrollableFrame::_resize
# ------------------------------------------------------------------------------
proc ScrollableFrame::_resize { path } {
if { [Widget::getoption $path -constrainedwidth] } {
$path:cmd itemconfigure win -width [winfo width $path]
}
if { [Widget::getoption $path -constrainedheight] } {
$path:cmd itemconfigure win -height [winfo height $path]
}
}
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