ttk::scale

Create and manipulate a scale widget

literal type exactly as shown argument replace with your value ~~?optional?~~ may be omitted

Synopsis#

ttk::scale pathName ?options...?

Description#

A ttk::scale widget is typically used to control the numeric value of a linked variable that varies uniformly over some range. A scale displays a slider that can be moved along over a trough, with the relative position of the slider over the trough indicating the value of the variable.

Standard Options#

-class	-cursor	-style
-takefocus

See the ttk_widget manual entry for details on the standard options.

-command#

Database name	`command`
Database class	`Command`

Specifies the prefix of a Tcl command to invoke whenever the scale's value is changed via a widget command. The actual command consists of this option followed by a space and a real number indicating the new value of the scale.

-from#

Database name	`from`
Database class	`From`

A real value corresponding to the left or top end of the scale.

-length#

Database name	`length`
Database class	`Length`

Specifies the desired long dimension of the scale in screen units (i.e. any of the forms acceptable to Tk_GetPixels). For vertical scales this is the scale's height; for horizontal scales it is the scale's width.

-orient#

Database name	`orient`
Database class	`Orient`

Specifies which orientation whether the widget should be laid out horizontally or vertically. Must be either horizontal or vertical or an abbreviation of one of these.

-to#

Database name	`to`
Database class	`To`

Specifies a real value corresponding to the right or bottom end of the scale. This value may be either less than or greater than the -from option.

-value#

Database name	`value`
Database class	`Value`

Specifies the current floating-point value of the variable. If -variable is set to an existing variable, specifying -value has no effect (the variable value takes precedence).

-variable#

Database name	`variable`
Database class	`Variable`

Specifies the name of a global variable to link to the scale. Whenever the value of the variable changes, the scale will update to reflect this value. Whenever the scale is manipulated interactively, the variable will be modified to reflect the scale's new value.

In addition to the standard cget, configure, identify element, instate, state and style commands (see ttk::widget), scale widgets support the following additional commands:

pathName get ?x y?: Get the current value of the -value option, or the value corresponding to the coordinates x,y if they are specified. X and y are pixel coordinates relative to the scale widget origin.
pathName set value: Set the value of the widget (i.e. the -value option) to value. The value will be clipped to the range given by the -from and -to options. Note that setting the linked variable (i.e. the variable named in the -variable option) does not cause such clipping.

Internal commands#

pathName coords ?value?: Get the coordinates corresponding to value, or the coordinates corresponding to the current value of the -value option if value is omitted.

Styling options#

The class name for a ttk::scale is TScale.

Dynamic states: active.

TScale styling options configurable with ttk::style are:

-background color
-borderwidth amount
-darkcolor color
-groovewidth amount
-lightcolor color
-sliderwidth amount
-troughcolor color
-troughrelief relief

Some options are only available for specific themes.

See the ttk::style manual page for information on how to configure ttk styles.

Keywords#

scale · slider · trough · widget