| 摘要 |
The SGML based script language and application is designed to produce multi-media presentations for CD-ROM, kiosk and Internet information products. The SGML based script language supports two basic object classes: resources and widgets. The resources are static objects which include such things as bit maps, audio, movies, areas, and events. Resources are static objects, since they do not process input data nor perform any actions. Widgets are objects which can perform actions, process events, and respond to user provided input. The SGML based script language exploits standard SGML syntax and uses tags with a well defined syntax and meaning to describe both resource objects and widget objects. This SGML based script produced presentation consists of a set of plates, each of which comprises a display screen which contains widget objects. An end user interacts with the widget objects located on a plate by pointing the cursor at one of the widget objects located on the display screen produced by the selected plate and/or clicking at this selected point on the display screen. The widget object so selected by this user operation responds by performing some predefined operation, which can include branching to another plate. When a widget object receives an event stimulus, it changes state and exhibits a set of predefined responses and/or behaviors. By creating widget objects that are dynamic in their behavior, as defined by the SGML object language, the resultant display presentation is responsive to the user's input to the system.
|
