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ttk::style(3tk) Tk Themed Widget ttk::style(3tk)


ttk::style - Manipulate style database

ttk::style option ?args?


See also the Tcl'2004 conference presentation, available at http://tktable.sourceforge.net/tile/tile-tcl2004.pdf

Each widget is assigned a style, which specifies the set of elements making up the widget and how they are arranged, along with dynamic and default settings for element options. By default, the style name is the same as the widget's class; this may be overridden by the -style option.

A theme is a collection of elements and styles which controls the overall look and feel of an application.

The ttk::style command takes the following arguments:

Sets the default value of the specified option(s) in style.
Sets dynamic values of the specified option(s) in style. Each statespec / value pair is examined in order; the value corresponding to the first matching statespec is used.
Returns the value specified for -option in style style in state state, using the standard lookup rules for element options. state is a list of state names; if omitted, it defaults to all bits off (the “normal” state). If the default argument is present, it is used as a fallback value in case no specification for -option is found.
Define the widget layout for style style. See LAYOUTS below for the format of layoutSpec. If layoutSpec is omitted, return the layout specification for style style.
Creates a new element in the current theme of type type. The only cross-platform built-in element type is image (see ttk_image(3tk)) but themes may define other element types (see Ttk_RegisterElementFactory). On suitable versions of Windows an element factory is registered to create Windows theme elements (see ttk_vsapi(3tk)).
Returns the list of elements defined in the current theme.
Returns the list of element's options.
Creates a new theme. It is an error if themeName already exists. If -parent is specified, the new theme will inherit styles, elements, and layouts from the parent theme basedon. If -settings is present, script is evaluated in the context of the new theme as per ttk::style theme settings.
Temporarily sets the current theme to themeName, evaluate script, then restore the previous theme. Typically script simply defines styles and elements, though arbitrary Tcl code may appear.
Returns a list of all known themes.
Without an argument the result is the name of the current theme. Otherwise this command sets the current theme to themeName, and refreshes all widgets.

A layout specifies a list of elements, each followed by one or more options specifying how to arrange the element. The layout mechanism uses a simplified version of the pack geometry manager: given an initial cavity, each element is allocated a parcel. Valid options are:

Specifies which side of the cavity to place the element; one of left, right, top, or bottom. If omitted, the element occupies the entire cavity.
Specifies where the element is placed inside its allocated parcel.
Specifies a list of elements to place inside the element.

For example:

ttk::style layout Horizontal.TScrollbar {

Scrollbar.trough -children {
Scrollbar.leftarrow -side left
Scrollbar.rightarrow -side right
Horizontal.Scrollbar.thumb -side left -sticky ew
} }

ttk::intro(3tk), ttk::widget(3tk), photo(3tk), ttk_image(3tk)

style, theme, appearance

8.5 Tk