X Athena Widgets or Xaw is a

GUI widget A graphical widget (also graphical control element or control) in a graphical user interface is an element of interaction, such as a button or a scroll bar. Controls are software components that a computer user interacts with through direct ...

library A library is a collection of materials, books or media that are accessible for use and not just for display purposes. A library provides physical (hard copies) or digital access (soft copies) materials, and may be a physical location or a vir ...

for the

X Window System The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting wit ...

. Developed as part of

Project Athena Project Athena was a joint project of MIT, Digital Equipment Corporation, and IBM to produce a campus-wide distributed computing environment for educational use. It was launched in 1983, and research and development ran until June 30, 1991. , At ...

, Xaw was written under the auspices of the MIT

X Consortium The X Window System (X11, or simply X) is a windowing system for bitmap displays, common on Unix-like operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting wit ...

as a sample widget set built on

X Toolkit Intrinsics X Toolkit Intrinsics (also known as Xt, for X toolkit) is a library that implements an API to facilitate the development of programs with a graphical user interface (GUI) for the X Window System. It can be used in the C or C++ languages. Th ...

(Xt); Xt and Xaw are collectively known as the X Toolkit. Xaw has been largely superseded by more sophisticated toolkits like Motif, and later toolkits such as

GTK GTK (formerly GIMP ToolKit and GTK+) is a free and open-source cross-platform widget toolkit for creating graphical user interfaces (GUIs). It is licensed under the terms of the GNU Lesser General Public License, allowing both free and propriet ...

, and Qt, but it is still maintained (by the

X.Org Foundation The X.Org Foundation is a non-profit corporation chartered to research, develop, support, organize, administrate, standardize, promote, and defend a free and open accelerated graphics stack. This includes, but is not limited to, the following p ...

) and is available as part of most X Window System installations. The library, like other core parts of X, is licensed under the

MIT License The MIT License is a permissive free software license originating at the Massachusetts Institute of Technology (MIT) in the late 1980s. As a permissive license, it puts only very limited restriction on reuse and has, therefore, high license comp ...

. In a talk for USENIX, X pioneer

Jim Gettys Jim Gettys (born 15 October 1953) is an American computer programmer. He was involved in multiple computer related projects. Activity Gettys worked at DEC's Cambridge Research Laboratory. Until January 2009, he was the Vice President of Sof ...

remarked that although Athena widgets were "ugly", they were often used in the period of X history that he describes as the "

GUI The GUI ( "UI" by itself is still usually pronounced . or ), graphical user interface, is a form of user interface that allows users to interact with electronic devices through graphical icons and audio indicator such as primary notation, inste ...

wars", as a safe alternative to the competing Motif and

Open Look OPEN LOOK (sometimes referred to as Open Look) is a graphical user interface (GUI) specification for UNIX workstations. It was originally defined in the late 1980s by Sun Microsystems and AT&T Corporation. History OPEN LOOK was created at a ...

toolkits.

References

External links

Xaw library 1.0.7 source code
X.Org Foundation website
Survey of Widget Sets
- comparisons of various Xaw versions.
Book
— X Toolkit Intrinsics Ref Man R5, Third Edition.

(an Xaw programming tutorial), GNU/Linux Fanatics Group Massachusetts Institute of Technology software X-based libraries Widget toolkits {{compu-graphics-stub