mingw/lib/tk8.5/demos/ttkscale.tcl

   1 # ttkscale.tcl --
   2 #
   3 # This demonstration script shows an example with a horizontal scale.
   4
   5 if {![info exists widgetDemo]} {
   6     error "This script should be run from the \"widget\" demo."
   7 }
   8
   9 package require Tk
  10
  11 set w .ttkscale
  12 catch {destroy $w}
  13 toplevel $w -bg [ttk::style lookup TLabel -background]
  14 wm title $w "Themed Scale Demonstration"
  15 wm iconname $w "ttkscale"
  16 positionWindow $w
  17
  18 pack [ttk::frame [set w $w.contents]] -fill both -expand 1
  19
  20 ttk::label $w.msg -font $font -wraplength 3.5i -justify left -text "A label tied to a horizontal scale is displayed below.  If you click or drag mouse button 1 in the scale, you can change the contents of the label; a callback command is used to couple the slider to both the text and the coloring of the label."
  21 pack $w.msg -side top -padx .5c
  22
  23 ## See Code / Dismiss buttons
  24 set btns [addSeeDismiss $w.buttons [winfo toplevel $w]]
  25 pack $btns -side bottom -fill x
  26
  27 ttk::frame $w.frame -borderwidth 10
  28 pack $w.frame -side top -fill x
  29
  30 # List of colors from rainbox; "Indigo" is not a standard color
  31 set colorList {Red Orange Yellow Green Blue Violet}
  32 ttk::label $w.frame.label
  33 ttk::scale $w.frame.scale -from 0 -to 5 -command [list apply {{w idx} {
  34     set c [lindex $::colorList [tcl::mathfunc::int $idx]]
  35     $w.frame.label configure -foreground $c -text "Color: $c"
  36 }} $w]
  37 # Trigger the setting of the label's text
  38 $w.frame.scale set 0
  39 pack $w.frame.label $w.frame.scale