/usr/share/xcrysden/Tcl/fs/bandselect.tcl is in xcrysden-data 1.5.53-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# FS_bandSelect --
#
# Select a bands for Fermi-surface plotting among the all the bands from
# small toplevel window. Also a abnd-widths are ploted for orientation
#
proc FS_bandSelect {spin} {
global fs
# specify fermi energy
OneEntryToplevel [WidgetName] "Fermi Energy" "Ferm Energy" \
"Specify the Fermi Energy:" 15 fs(Efermi) float 300 20
#
# display the bandwidths in a Text widget
#
set text [FS_displayBandWidths $fs($spin,bandwidthfile)]
wm geometry $text +0-0
raise $text
#
# make a band-width graph !!!
#
set xlabel "Band Widths"
if { $spin != {} } {
append xlabel " (spin type: $spin)"
}
GraphInit
grapher_BARGraph $fs($spin,bandwidthfile) \
-Xtitle $xlabel \
-Ytitle "E" \
-Yline $fs(Efermi) \
-Yline_text Ef
set graph [Grapher BARGraph]
wm geometry $graph +0+0
raise $graph
#
# select bands to plot Fermi surface
#
global grafdata
set gID [CurrentGrapherID]
set fs($spin,nbands) $grafdata($gID,N_point,1)
set t [xcToplevel [WidgetName] "Select bands" "Select Bands" . 0 0 0]
raise $t
for {set i 1} {$i <= $fs($spin,nbands)} {incr i} {
set fs($spin,$i,minE) $grafdata($gID,$i,1,1)
set fs($spin,$i,maxE) $grafdata($gID,$i,2,1)
}
label $t.l \
-text "Select bands for Fermi Surface drawing:" \
-relief ridge -bd 2
pack $t.l -side top -expand 1 -fill x -padx 2m -pady 3m \
-ipadx 2m -ipady 2m
# we should make a scrolled window
#
# CANVAS & SCROLLBAR in CANVAS
set scroll_frame [frame $t.f -relief sunken -bd 1]
pack $scroll_frame -side top -expand true -fill y -padx 5
set c [canvas $scroll_frame.canv \
-yscrollcommand [list $scroll_frame.yscroll set]]
set scb [scrollbar $scroll_frame.yscroll \
-orient vertical -command [list $c yview]]
pack $scb -side right -fill y
pack $c -side left -fill both -expand true
# create FRAME to hold all checkbuttons
set f [frame $c.f -bd 0]
$c create window 0 0 -anchor nw -window $f -tags frame
# CHECKBUTTONS
for {set i 1} {$i <= $fs($spin,nbands)} {incr i} {
set fs($spin,$i,band_selected) 0
set cb [checkbutton [WidgetName $f] -text "Band number: $i" \
-variable fs($spin,$i,band_selected) -relief ridge -bd 2]
pack $cb -side top -padx 2m -pady 1m -fill x -expand 1
}
# make correct DISPLAY
set child [lindex [pack slaves $f] 0]
tkwait visibility $child
set width [winfo width $c]
set height [winfo height $f]
if { $fs($spin,nbands) < 8 } {
$c config -width $width -height $height
} else {
$c config \
-width $width -height [expr 8*($height / $fs($spin,nbands))] \
-scrollregion "0 0 $width $height"
}
#
# press the "Selected" button when done
#
set b [button [WidgetName $t] -text "Selected" \
-command [list FS_bandSelect:selected $t $spin]]
pack $b -side top -expand 1 -fill x -padx 2m -pady 3m
if { $spin != {} } {
set l [label [WidgetName $t] -text " Spin type: $spin" \
-relief ridge -bd 4 -anchor w]
pack $l -side top -expand 1 -fill x -padx 1m -pady 1m \
-ipadx 2m -ipady 2m
}
tkwait variable fs($spin,selected)
}
proc FS_bandSelect:selected {t spin} {
global fs
set fs($spin,selected) 1
CancelProc $t
}
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