It is hard to avoid the existence of different versions about one historical legend due to the addition and reduction in the process of going through different eras and readings in the context of different cultures.

Drawing on the Swing structure components,this paper introduces the renderer principle and application situation,and points out that in Swing system,interface wrapping can be used or the renderer code of existing scalar components can be reused to reduce code repetition rate and improve extendibility of components.

Programmable pixel shader for mobile devices