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Name

style - Control overall look and feel of widgets

Synopsis

style option ?args?
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Definitions

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 ele- ment resources. 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 con- trols the overall look and feel of an application.

Description

The style command takes the following arguments:

style configure style ?-option ?value option value...? ? Sets the default value of the specified option(s) in style.

style map style ?-option { statespec value } ... ? Sets dynamic values of the specified option(s) in style. See STATE MAPS", below.

style layout style ?layoutSpec?
Define the widget layout for style style. See LAYOUTS below for the format of layoutSpec. If layoutSpec is omitted, return the layout specifica- tion for style style.

style element create elementName type ?args...? Creates a new element in the current theme of type type. The only built-in element type is image (see image(n)), although themes may define other element types (see Ttk_RegisterElementFactory).

style element names
Returns the list of elements defined in the current theme.

style element options element
Returns the list of element's options.

style theme create themeName ?-parent basedon? ?-settings script... ?
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 style theme settings.

style theme settings themeName script
Temporarily sets the current theme to themeName, evaluate script, then restore the previous theme. Typically script simply defines styles and ele- ments, though arbitrary Tcl code may appear.

style theme names
Returns a list of the available themes.

style theme use themeName
Sets the current theme to themeName, and refreshes all widgets.

Layouts

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:

-side side
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.
-sticky [nswe]
Specifies where the element is placed inside its allocated parcel.
-children { sublayout... }
Specifies a list of elements to place inside the element.

For example:
style layout Horizontal.TScrollbar { Scrollbar.trough -children {
Scrollbar.leftarrow -side left Scrollbar.rightarrow -side right Horizontal.Scrollbar.thumb -side left -sticky ew }
}

State Maps

@@@ describe...

See Also

tile-intro, widget, pixmap

Keywords

style, theme, appearance

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