• Source: KDE Projects

      • KDE Projects are projects maintained by the KDE community, a group of people developing and advocating free software for everyday use, for example KDE Plasma and KDE Frameworks or applications such as Amarok, Krita or Digikam. There are also non-coding projects like designing the Breeze desktop theme and iconset, which is coordinated by KDE's Visual Design Group. Even non-Qt applications like GCompris, which started as a GTK-based application, or web-based projects like WikiToLearn are officially part of KDE.


      Overview


      As of today there are many KDE projects that are either stand-alone or grouped into larger sub-projects:

      KDE Plasma Workspaces
      KDE Frameworks (formerly KDE-Libs): A collection of libraries that provides frameworks and functionality for developers
      KDE Applications Bundle: Containing core applications like Konqueror, Dolphin, KWrite, and Konsole.


      = KDE Core projects

      =
      Plasma – UI for multiple workspaces
      KWin – Window manager
      KHTML – HTML rendering engine, forked into WebKit in 2004
      KJS - JavaScript engine
      KIO – Extensible network-transparent file access
      KParts – Lightweight in-process graphical component framework
      XMLGUI – Allows defining UI elements, such as menus and toolbars via XML files
      Phonon – Multimedia framework
      Solid – Device integration framework
      Sonnet – Spell checker
      ThreadWeaver – Library to use multiprocessor systems more effectively


      = KDE Applications

      =

      Major applications developed by KDE include:

      Ark – Archiving tool
      Dragon Player – Media player.
      Dolphin – File manager
      Gwenview – Image viewer
      Kate – Text editor
      Konsole – Terminal emulator
      Kontact – Personal information manager featuring an e-mail client, a news client, a feed aggregator, to-do lists, etc.
      Konqueror – Web browser and File manager
      Kopete – Instant messaging client
      Krita – Raster graphics editor for Digital painting
      Kdenlive – Video editing software


      = Thematically related groups of applications

      =
      KDE-Plasma-Addons: Additional Plasma widgets.
      KDE-Network
      KDE-Pim
      KDE-Graphics
      KDE-Multimedia
      KDE-Accessibility: Accessibility applications.
      KDE-Utilities
      KDE-Edu
      Calligra Suite: Integrated office suite
      KDE-Games
      KDE-Toys
      KDE-Artwork: Additional icons, styles, etc.
      KDE-SDK
      KDE-Bindings
      KDEWebdev: Web development tools.
      KDE-Extragear: Extragear is a collection of applications and tools that are not part of the core KDE Applications.
      KDE-Playground: This repository contains new and unstable software. It is a place for applications to mature.


      = Other projects

      =
      KDE Connect: A multi-platform application that allows data transfer between devices over local networks.
      KDE neon: a distro featuring the latest KDE software packages on top of an Ubuntu base.
      Wiki2Learn: a wiki-based web framework for people to participate and share knowledge.
      Liquidshell: an alternative to Plasma


      Development




      = Source code

      =
      The source code of every KDE project is stored in a source code repository using Git. Stable versions are released to the KDE FTP server in the form of source code with configure scripts, ready to be compiled by operating system vendors and to be integrated with the rest of their systems before distribution. Most vendors use only stable and tested versions of KDE programs or applications, providing it in the form of easily installable, pre-compiled packages.


      = Implementation

      =
      Most KDE projects are using the Qt framework, which runs on most Unix and Unix-like systems (including Mac OS X), and Microsoft Windows. As of 2011 CMake serves as the build tool. This allows KDE to support a wider range of platforms, including Windows. GNU gettext is used for translation. Doxygen is used to generate api documentation.


      = Licensing

      =
      KDE software projects must be released under free licensing terms. In November 1998, the Qt framework was dual-licensed under the free and open-source Q Public License (QPL) and a commercial license for proprietary software developers. The same year, the KDE Free Qt foundation was created which guarantees that Qt would fall under a variant of the very liberal BSD license should Trolltech cease to exist or no free version of Qt be released during 12 months.
      Debate continued about compatibility with the GNU General Public License (GPL), hence in September 2000 Trolltech made the Unix version of the Qt libraries available under the GPL in addition to the QPL which eliminated the concerns of the Free Software Foundation. Trolltech continued to require licenses for developing proprietary software with Qt. The core libraries of KDE are collectively licensed under the GNU LGPL but the only way for proprietary software to make use of them was to be developed under the terms of the Qt proprietary license.
      Starting with Qt 4.5, Qt was also made available under the LGPL version 2.1, now allowing proprietary applications to legally use the open source Qt version.


      See also


      List of KDE applications
      KDE Applications
      KDE Extragear


      References




      External links



      The KDE website
      KDE.News, news announcements
      KDE community forums, the official forum board
      Planet KDE, blog aggregate
      KDE wikis
      KDE Localization
      KDE Store, free extensions and addons for KDE Software

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