The Scale Widget

Create a "slider" widget representing a numeric value with the Scale method. 

$parent->Scale(options);

The standard configuration options that apply to Scale are: -activebackground, -background, -bg, -borderwidth, -bw, -cursor, -font, -foreground, -fg, -highlight-background, -highlightcolor, -highlightthickness, -relief, -state, -takefocus, and -width.

Other options are:

  • -bigincrement => amount
  • The amount to change the slider when using large increments. Default is , which means 1/10 of the scale.
  • -command => callback
  • Pointer to a function that will be called for every incremental change in the slider.
  • -digits => amount
  • The number of digits to keep when converting from a number to a string.
  • -from => n
  • Low end of the scale (default is ).
  • -label => string
  • The string to use as a label for the slider.
  • -length => amount
  • The length of the scale.
  • -orient => direction
  • The orientation of the slider. Values can be either vertical (default) or horizontal.
  • -repeatdelay => milliseconds
  • Determines the number of milliseconds to hold down an arrow before it auto-repeats. Default is .
  • -repeatinterval => milliseconds
  • Determines the number of milliseconds between auto-repeats once it is started. Default is .
  • -resolution => value
  • The increments that the scale will change by (default is ).
  • -showvalue => boolean
  • Whether to show the current value of the slider (default is ).
  • -sliderlength => amount
  • The size of the slider. Default is 25 pixels.
  • -tickinterval => n
  • The number of "ticks" to display for the slider (default is ).
  • -to => n
  • The top value of the scale (default is ).
  • -troughcolor => color
  • Changes the color of the trough.
  • -variable => $variable
  • Assigns the value of the slider to the specified variable.

Scale Methods

In addition to configure and cget, the following methods are defined for the Scale widget:

  • get
  • Returns the current value if given no arguments. If given x and y coordinates as the first and second arguments, returns the value of the scale at that position.
  • set
  • Assigns the value associated with the scale.
  • coords
  • Returns the x and y coordinates associated with the value given in the first argument.
  • identify
  • Returns "slider", "trough1", "trough2", or "", depending on which part of the scale corresponds to the given x, y coordinates.