< Development | Architecture/KDE4 Plasma is the name of the new desktop which replaced KDesktop in KDE4. You may think that it is a union of SuperKaramba and KDesktop, but it's more. It's a whole concept of functionality and beauty. Its implementation is based on the Qt Graphics View Framework introduced in Qt 4.2. From a developer point of view there are some classes in libplasma who play central roles. Corona: extends QGraphicsScene and provides functionality for adding applets and karamba themes. Widget: extends QGraphicsItem and works as simple elements in the desktop. There are some built-in in libplasma as icons or buttons. Applet: extends Widget and implements sophisticated functionality as rss display, a clock or system monitoring. DataEngine: The common use of a DataEngine is to provide data to an applet for display. This allows a user interface elements to show all sorts of data. Further reading Plasma community page Plasma homepage API Retrieved from "https://techbase.kde.org/index.php?title=Development/Architecture/KDE4/Plasma&oldid=99439" Categories: ArchitectureKDE4 This page was last edited on 9 February 2018, at 12:33. Content is available under Creative Commons License SA 4.0 unless otherwise noted.