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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 proprietary software to use it. It is one of the most popular toolkits for the Wayland and X11 windowing systems. The GTK team releases new versions on a regular basis. GTK 4 and GTK 3 are maintained, while GTK 2 is end-of-life. Software architecture The GTK library contains a set of graphical control elements ( widgets); version 3.22.16 contains 186 active and 36 deprecated widgets. GTK is an object-oriented widget toolkit written in the programming language C; it uses GObject, that is the GLib object system, for the object orientation. While GTK is mainly for windowing systems based on X11 and Wayland, it works on other platforms, including Microsoft Windows (interfaced with the Windows API), and macOS (interfaced with Qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GTK+ Software Architecture
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 proprietary software to use it. It is one of the most popular toolkits for the Wayland and X11 windowing systems. The GTK team releases new versions on a regular basis. GTK 4 and GTK 3 are maintained, while GTK 2 is end-of-life. Software architecture The GTK library contains a set of graphical control elements ( widgets); version 3.22.16 contains 186 active and 36 deprecated widgets. GTK is an object-oriented widget toolkit written in the programming language C; it uses GObject, that is the GLib object system, for the object orientation. While GTK is mainly for windowing systems based on X11 and Wayland, it works on other platforms, including Microsoft Windows (interfaced with the Windows API), and macOS (interfaced with Q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GDK Software Architecture
GDK (GIMP Drawing Kit) is a Library (computing), library that acts as a Wrapper pattern, wrapper around the low-level functions provided by the underlying windowing and graphics systems. GDK lies between the display server and the GTK library, handling basic Rendering (computer graphics), rendering such as drawing primitives, raster graphics (bitmaps), Cursor (computers), cursors, fonts, as well as Event (computing), window events and drag-and-drop functionality. Like GTK Scene Graph Kit (GSK), GDK is part of GTK and licensed under the GNU Lesser General Public License (LGPL). Software architecture GTK is implemented on top of an abstraction layer called GDK, freeing GTK from low-level concerns like input gathering, Drag and drop and pixel format conversion. GDK is an intermediate layer which separates GTK from the details of the windowing system. GDK is an important part of GTK's portability. Since low-level cross-platform functionality is already provided by GLib, all that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wayland (display Server Protocol)
Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. A display server using the Wayland protocol is called a ''Wayland compositor'', because it additionally performs the task of a compositing window manager. Wayland is developed by a group of volunteers initially led by Kristian Høgsberg as a free and open-source community-driven project with the aim of replacing the X Window System with a modern, secure simpler windowing system in Linux and other Unix-like operating systems. The project's source code is published under the terms of the MIT License, a permissive free software licence. As part of its efforts, the Wayland project also develops a reference implementation of a Wayland compositor called ''Weston''. Overview The Wayland Display Server project was started by Red Hat developer Kristian Høgsberg in 2008. Beginning around 2010, Linux desktop graphics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GObject
The GLib Object System, or GObject, is a free software library providing a portable object system and transparent cross-language interoperability. GObject is designed for use both directly in C programs to provide object-oriented C-based APIs and through bindings to other languages to provide transparent cross-language interoperability, e.g. PyGObject. GObject Introspection GObject introspection(abbreviated GIR) is a middleware layer between C libraries (using GObject) and language bindings, cf. List of language bindings for GTK. History Depending only on GLib and libc, GObject is a cornerstone of GNOME and is used throughout GTK, Pango, ATK, and most higher-level GNOME libraries like GStreamer and applications. Prior to GTK+ 2.0, code similar to GObject was part of the GTK codebase. (The name “GObject” was not yet in use — the common baseclass was called GtkObject.) At the release of GTK+ 2.0, the object system was extracted into a separate library due to its gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GLib
GLib is a bundle of three (formerly five) low-level system libraries written in C and developed mainly by GNOME. GLib's code was separated from GTK, so it can be used by software other than GNOME and has been developed in parallel ever since. Features GLib provides advanced data structures, such as memory chunks, doubly and singly linked lists, hash tables, dynamic strings and string utilities, such as a lexical scanner, string chunks (groups of strings), dynamic arrays, balanced binary trees, N-ary trees, quarks (a two-way association of a string and a unique integer identifier), keyed data lists, relations, and tuples. Caches provide memory management. GLib implements functions that provide threads, thread programming and related facilities such as primitive variable access, mutexes, asynchronous queues, secure memory pools, message passing and logging, hook functions (callback registering) and timers. GLib also includes message passing facilities such as byte order ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Mattis
Peter Mattis is an American computer programmer, entrepreneur, and business executive. He is the CTO and co-founder for Cockroach Labs, a company he co-founded in 2014. His work as a programmer includes launching GNU Image Manipulation Program (GIMP) while still in college, and assisting the source code development of CockroachDB, the namesake software of Cockroach Labs. Early life and education Mattis attended the University of California at Berkeley. While still a student in 1995, he developed the first version of GNU Image Manipulation Program (GIMP), along with his roommate Spencer Kimball. Mattis was also a member of a student club at Berkeley called the eXperimental Computing Facility (XCF). Mattis graduated from Berkeley in 1997 with a B.S. in Electrical Engineering and Computer Science. According to Mattis in 1999: On free software and the motivations to write it and what makes good and enduring free software: Career Mattis was previously employed as an engineer for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 manipulation to read or edit information about an application. User interface libraries such as Windows Presentation Foundation, Qt, GTK, and Cocoa, contain a collection of controls and the logic to render these. Each widget facilitates a specific type of user-computer interaction, and appears as a visible part of the application's GUI as defined by the theme and rendered by the rendering engine. The theme makes all widgets adhere to a unified aesthetic design and creates a sense of overall cohesion. Some widgets support interaction with the user, for example labels, buttons, and check boxes. Others act as containers that group the widgets added to them, for example windows, panels, and tabs. Structuring a user interface with widget to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Widget (GUI)
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 manipulation to read or edit information about an application. User interface libraries such as Windows Presentation Foundation, Qt, GTK, and Cocoa, contain a collection of controls and the logic to render these. Each widget facilitates a specific type of user-computer interaction, and appears as a visible part of the application's GUI as defined by the theme and rendered by the rendering engine. The theme makes all widgets adhere to a unified aesthetic design and creates a sense of overall cohesion. Some widgets support interaction with the user, for example labels, buttons, and check boxes. Others act as containers that group the widgets added to them, for example windows, panels, and tabs. Structuring a user interface with widget to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux
Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name "GNU/Linux" to emphasize the importance of GNU software, causing some controversy. Popular Linux distributions include Debian, Fedora Linux, and Ubuntu, the latter of which itself consists of many different distributions and modifications, including Lubuntu and Xubuntu. Commercial distributions include Red Hat Enterprise Linux and SUSE Linux Enterprise. Desktop Linux distributions include a windowing system such as X11 or Wayland, and a desktop environment such as GNOME or KDE Plasma. Distributions intended for ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EXperimental Computing Facility
Founded in 1986, the eXperimental Computing Facility (XCF) is an undergraduate computing-interest organization at University of California, Berkeley. The "Experimental" description was given in contrast to the Open Computing Facility and the Computer Science Undergraduate Association, which support most of the general-interest computing desires of the campus. As such, the XCF stands as a focus for a small group of computer-scientists uniquely interested in computer science. Members of the organization have been involved in projects such as NNTP, Article on the history of the Experimental Computing Facility and its role in creating free software. GTK+, GIMP, Gnutella, and Viola. Members of the XCF were instrumental in defending against the Morris Internet worm. Notable alumni Notable alumni of the organization include: Jonathan Blow, FOLDOC entry about FMPL, a programming language Blow created while at the XCF. Gene Kan, Spencer Kimball, Peter Mattis, Pei-Yuan Wei, and Phil La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The GNOME Project
GNOME Project is a community behind the GNOME desktop environment and the software platform upon which it is based. It consists of all the software developers, artists, writers, translators, other contributors, and active users of GNOME. It is no longer part of the GNU Project. GNOME Foundation In August 2000, the GNOME Foundation was set up to deal with administrative tasks and press interest, and to act as a contact point for companies interested in developing GNOME software. While not directly involved in technical decisions, the Foundation does coordinate releases and decide which projects will be part of GNOME. Membership is open to anyone who has made a non-trivial contribution to the project. Members of the Foundation elect a board of directors every November, and candidates for the positions must be members themselves. Programs and events The GNOME Project holds several community programs and events, usually tailored to local users and developers. The main gathering of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross-platform
In computing, cross-platform software (also called multi-platform software, platform-agnostic software, or platform-independent software) is computer software that is designed to work in several computing platforms. Some cross-platform software requires a separate build for each platform, but some can be directly run on any platform without special preparation, being written in an interpreted language or compiled to portable bytecode for which the interpreters or run-time packages are common or standard components of all supported platforms. For example, a cross-platform application may run on Microsoft Windows, Linux, and macOS. Cross-platform software may run on many platforms, or as few as two. Some frameworks for cross-platform development are Codename One, Kivy, Qt, Flutter, NativeScript, Xamarin, Phonegap, Ionic, and React Native. Platforms ''Platform'' can refer to the type of processor (CPU) or other hardware on which an operating system (OS) or application runs, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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