KDE Platform 4
Original author(s)KDE
Developer(s)KDE
Initial release11 January 2008 (2008-01-11)[1]
Final release4.14.12 (September 15, 2015 (2015-09-15)) [±][2]
Repository
Written inC++[3][4]
Type
LicenseGNU Lesser General Public License (LGPL)

KDE Platform 4 was a collection of libraries and software frameworks by KDE that served as technological foundation for KDE Software Compilation 4 distributed under the GNU Lesser General Public License (LGPL). KDE Platform 4 was the successor to KDElibs and the predecessor of KDE Frameworks. KDE Platform 4 is the only version of KDE Platform, and in 2013 it was replaced by KDE Frameworks 5.

KDE Software Compilation structure

Technologies

  • User Interface
    • Plasma – desktop and panel widget engine
    • KHTML – HTML rendering engine
    • KIO – extensible network-transparent file access
    • KParts – lightweight in-process graphical component framework
    • Sonnet – spell checker
    • XMLGUI – allows defining UI elements such as menus and toolbars via XML files
    • Goya
  • Hardware and Multimedia
    • Phonon – multimedia framework
    • Solid – device integration framework
  • Services
  • Communication
  • Games
    • Gluon
    • KGGZ
  • Other
    • ThreadWeaver – library to use multiprocessor systems more effectively
    • Kiosk – allows disabling features within KDE to create a more controlled environment
    • Kross
    • KConfig XT
    • WebDAV

Technologies superseded in KDE Platform 4

KParts

KParts is the component framework for the KDE Plasma desktop environment. An individual component is called a KPart. KParts are analogous to Bonobo components in GNOME and ActiveX controls in Microsoft's Component Object Model. Konsole is available as a KPart and is used in applications like Konqueror and Kate.

Example uses of KParts:

Solid

Solid is a device integration framework for KDE Platform 4 and its successor, KDE Frameworks. It functions on similar principles to KDE's multimedia pillar Phonon; rather than managing hardware on its own, it makes existing solutions accessible through a single API. The current solution uses udev, NetworkManager and BlueZ (the official Linux Bluetooth stack). However, any and all parts can be replaced without breaking the application, making applications using Solid extremely flexible and portable.[5][6] Work is underway to build a Solid backend for the Windows port of KDE based on Windows Management Instrumentation.[7]

References

  1. ↑ "KDE 4.0 Release Announcement". 11 January 2008.
  2. ↑ "KDE Ships KDE Applications 15.08.1". KDE. 15 September 2015. Retrieved 16 September 2015.
  3. ↑ "The KDE development platform". Retrieved 2010-11-26.
  4. ↑ "Development/Languages". Retrieved 2010-12-04.
  5. ↑ K Desktop Environment - KDE 4.0 Released
  6. ↑ "UPower, UDev and UDisks Support, Metadata Backup". Archived from the original on 2011-12-11. Retrieved 2011-07-28.
  7. ↑ "KDE Commit Digest issue 107". Archived from the original on 2014-02-01. Retrieved 2010-10-16.
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