Methods for applying styles to visual aspects of user interface elements

摘要

The visual appearance of a user interface element can be specified in a visual style document divorced from its semantic implementation. The visual style document can be used to specify a visual style including a set of sub-elements used for composing composite user interface element. Selected properties of the sub-elements may be exposed as properties of the composite element itself such that values specified for properties of the composite user interface element can be consumed by corresponding properties of the sub-elements. The style document can also be used to specify values for selected visual properties described in a named resource that may be independent of the style document. Changes in functional aspects of selected sub-elements of composite user interface elements can be used to drive changes in properties of the composite user interface element or other sub-elements by triggering commands that the other elements may be responsive to.