[ulis], 2004-03-13. A LCD hexa panel.

[http://perso.wanadoo.fr/maurice.ulis/tcl/LCDhexapanel.png]

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'''Digits stuff'''

  # --------
  # digits stuff
  # --------
  # font description
  array set hexdigits \
  {
    " " {0 0 0 0 0 0 0}
    "0" {1 1 1 0 1 1 1}
    "1" {0 0 1 0 0 1 0}
    "2" {1 0 1 1 1 0 1}
    "3" {1 0 1 1 0 1 1}
    "4" {0 1 1 1 0 1 0}
    "5" {1 1 0 1 0 1 1}
    "6" {1 1 0 1 1 1 1}
    "7" {1 0 1 0 0 1 0}
    "8" {1 1 1 1 1 1 1}
    "9" {1 1 1 1 0 1 1}
    "A" {1 1 1 1 1 1 0}
    "B" {0 1 0 1 1 1 1}
    "C" {1 1 0 0 1 0 1}
    "D" {0 0 1 1 1 1 1}
    "E" {1 1 0 1 1 0 1}
    "F" {1 1 0 1 1 0 0}
  }
  # add a digit to the panel
  proc add:digit {w x y tag} \
  {
    set dx $::(dx)
    set dy $::(dy)
    create:segment $w $tag:0 $x $y 0 0 $dx 0
    create:segment $w $tag:1 $x $y 0 0 0 $dy
    create:segment $w $tag:2 $x $y $dx 0 $dx $dy
    incr y $dy
    create:segment $w $tag:3 $x $y 0 0 $dx 0
    create:segment $w $tag:4 $x $y 0 0 0 $dy
    create:segment $w $tag:5 $x $y $dx 0 $dx $dy
    incr y $dy
    create:segment $w $tag:6 $x $y 0 0 $dx 0
  }
  # add a segment to a digit
  proc create:segment {w tag x y dx0 dy0 dx1 dy1} \
  {
    $w create line \
      [expr {$x + $dx0}] [expr {$y + $dy0}] \
      [expr {$x + $dx1}] [expr {$y + $dy1}] \
      -tags [list $tag $tag] \
      -fill $::(color) -width $::(width)
  }
  # set a digit
  proc set:digit {w tag digit} \
  {
    set n 0
    foreach segment $::hexdigits($digit) \
    {
      $w itemconfig $tag:$n -state [expr {$segment ? "normal" : "hidden"}]
      incr n
    }
  }

----
'''Demo'''

  # --------
  # demo
  # --------
  wm title . "LCD hexa panel"
  # parms
  array set {} \
  {
    dx    15
    dy    15
    color red
    width 3
  }
  # canvas
  pack [canvas .c]
  # digits
  set n 0
  set x 5
  foreach digit [lsort [array names hexdigits]] \
  {
    add:digit .c $x 5 d$n
    set:digit .c d$n $digit
    incr n
    incr x 20
  }
  foreach {- - width height} [.c bbox all] break
  .c config -width $width -height $height

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[Category Example]