4/8/2023 0 Comments Swing feel on tux guitarSWT widgets have the same " look and feel" as native widgets because they often are the same native widgets. Developers may choose to use JFace to provide more flexible and abstract data models for complex SWT controls such as trees, tables and lists, or access those controls directly as needed. Īlthough SWT does not implement the popular model–view–controller architecture used in Swing and many other high level GUI toolkits, the JFace library, which is developed as part of the same Eclipse project, does provide a platform-independent, higher-level Model-View-Controller abstraction on top of SWT. James Gosling, the creator of the Java language, has argued that SWT is too simple, and that SWT is a difficult toolkit to port to new platforms for the same reason that AWT used to have porting problems: that it is too simple, too low level, and too tied to the Win32 GUI API, leading to problems adapting the SWT API to other GUI toolkits, such as Motif and OS X Carbon. This has led some people to argue that SWT lacks functionality when compared to Swing. SWT is a simpler toolkit than Swing, with less (possibly) extraneous functionality for the average developer. It has been argued that SWT features a clean design, in part inspired by Erich Gamma of Design Patterns fame. Swing, on the other hand, is designed to allow for a highly customizable look and feel that is common across all platforms." The primary design goals are high performance, native look and feel, and deep platform integration. The purpose of SWT is to provide a common API for accessing native widgets across a spectrum of platforms. Īccording to the Eclipse Foundation, "SWT and Swing are different tools that were built with different goals in mind. In essence, SWT is a compromise between the low level performance and look and feel of AWT and the high level ease of use of Swing. In cases where native platform GUI libraries do not support the functionality required for SWT, SWT implements its own GUI code in Java, similar to Swing. ![]() Because of this, SWT widgets are often referred to as "heavyweight", evoking images of a light Java wrapper around a "heavy" native object. SWT is a wrapper around native code objects, such as GTK+ objects, Motif objects etc. Eclipse is written in Java, and IBM developers, deciding that they needed a toolkit that had "native look and feel" and "native performance", created SWT as a Swing replacement. They decided to open-source the project, which led to the development of Eclipse, intended to compete against other IDEs such as Microsoft Visual Studio. IBM was developing VisualAge, an integrated development environment (IDE) written in Smalltalk. IBM Smalltalk's Common Widget layer provided fast, native access to multiple platform widget sets while still providing a common API without suffering the "lowest common denominator" problem typical of other portable graphical user interface (GUI) toolkits. The roots of SWT go back to work that Object Technology International, or OTI, did in the 1990s when creating multiplatform, portable, native widget interfaces for Smalltalk (originally for OTI Smalltalk, which became IBM Smalltalk in 1993). Swing GUI elements are 100% Java with no native code: instead of wrapping native GUI components, Swing draws its own components by using Java 2D to call low level operating system drawing routines. Swing was developed in order to provide a richer set of GUI components than AWT. Swing was the next generation GUI toolkit introduced by Sun in J2SE 1.2. The original AWT was a simple Java wrapper around native ( operating system-supplied) widgets such as menus, windows and buttons. HistoryĪWT (the Abstract Window Toolkit) was the first Java GUI toolkit, introduced with JDK 1.0 as one component of the Sun Microsystems Java platform. The toolkit is licensed under the Eclipse Public License, an open source license approved by the Open Source Initiative. Programs that call SWT are portable, but the implementation of the toolkit, despite part of it being written in Java, is unique for each platform. To display GUI elements, the SWT implementation accesses the native GUI libraries of the operating system using JNI ( Java Native Interface) in a manner that is similar to those programs written using operating system-specific APIs. It is an alternative to the Abstract Window Toolkit (AWT) and Swing Java GUI toolkits provided by Sun Microsystems as part of the Java Platform, Standard Edition. It was originally developed by Stephen Northover at IBM and is now maintained by the Eclipse Foundation in tandem with the Eclipse IDE. ![]() ![]() The Standard Widget Toolkit ( SWT) is a graphical widget toolkit for use with the Java platform.
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