Widget toolkit

Abstract: A graphical user interface, using the Interactive Data Language (IDL) widget toolkit, for calculation of spectral properties of synchrotron radiation sources and for interaction of x‐rays with optical elements has been developed. The interface runs presently on three different computer architectures under the Unix operating system – the Sun‐OS, the HP‐UX, and the DEC‐Unix operating systems. The point‐and‐click interface is used as a driver program for a variety of codes from different authors written in different computer languages. The execution of codes for calculating synchrotron radiation from undulators, wigglers, and bending magnets is summarized. The computation of optical properties of materials and the x‐ray diffraction profiles from crystals in different geometries are also discussed. The interface largely simplifies the use of these codes and may be used without prior knowledge of how to run a particular program.

Abstract: The Standard Widget Toolkit (SWT) is a new class library for creating graphical user interfaces (GUIs) in Java. Created as part of the Eclipse project, SWT allows developers to build efficient, portable applications that directly access the user-interface facilities of the operating systems it is implemented on. This revolutionary technology makes it possible to create Java-based applications that are indistinguishable from a platform's native applications.SWT: The Standard Widget Toolkit, Volume 1, will show you how to: Get SWT, install it, and invoke it from your programs. Understand widgets--the building blocks of GUI--and how they interact with users and compose a GUI. Use graphics routines to configure the appearance of native widgets and draw application-specific graphics. Apply best practices from real-world uses of SWT. Appreciate what makes a quality SWT program.In this book--the first definitive guide to SWT--two of the technology's lead designers and implementers show you how to break the task of building a GUI-based application into components. They then show how these components are modeled in SWT and provide a series of graded examples. The result is a guided tour of the essential aspects of this exciting toolkit, ranging from mouse and keyboard handling to user-interface controls for native operating systems.If you want to build modern GUI-based application, SWT: The Standard Widget Toolkit, Volume 1, will prove an invaluable guide and reference.

Abstract: Widgets - standard reusable GUI elements - are a staple of user-interface development. The use of widget toolkits, such as Java's Swing, X Window System's Motif, or Microsoft's MFC, allows programmers to quickly incorporate a number of standard interactions (such as clicking buttons, selecting check boxes, or scrolling through lists) into their software. To date, most widgets have been designed for use by one person at a time. Within a single session, a widget behaves the same regardless of who uses it. By applying the iDwidgets concept, the authors supplement traditional widgets with identity differentiation that supports widget reuse, dynamic widget customization, clutter reduction, and novel multiuser widget type creation. This article introduces a conceptual framework for iDwidgets, describing four axes that application can customize by exploiting identity differentiation: function, content, appearance, and group input

Abstract: The GRAVSOFT suite of Fortran programs enables gravity field modeling using 3D or 2D Least-Squares Collocation and Fourier techniques, the computation of topographic effects, the evaluation of high-degree spherical harmonic series and several other functions. It has been developed since the early 1970s with a line-oriented DOS-interface. Sponsored by the Geodetic Survey of Malaysia a modern graphical interface has been designed using Python (www.python.org) and the widget toolkit Tk, following the Apple Design Guidelines.