R3 Graphical User Interface (GUI)
About the GUI:
- The primary objectives of the R3 GUI have been clearly stated in prior documents. However, to be sure we're all in sync: the GUI is designed to make simple apps simple, and sophisticated apps possible. That is, you really can write a useful app in just a few lines of GUI dialect, and a full scale app may require just a few dozen pages.
- You can use the GUI in programs without knowing the details about how it works. That's fine; however, if you want to create new styles or features, it is critical that you undertand the desgin.
- We have begun writing the official R3 GUI documentation, as you see below. We seek the best ways to explain how the GUI works and provide you with a solid conceptual model.
This is a whole new guide that's being started for new users it goes step-by-step. (Currently, this part is lower priority compared to developer docs.)
|GUI Guide||Getting started with the GUI. In development.|
This section is for developers to understand the language of the GUI. Here are the primary terms you need to know, with each linked to its documentation:
|Style||Defines the look and feel of a GUI element. A GUI class.|
|Face||An instance of a style, with specific attributes and options. A GUI object.|
|Panel||An organized collection of related faces. A GUI layout.|
|Actor||A style-defined function that acts on face instances. A GUI method.|
|Reactor||A top level "result" from user input or other events. GUI results.|
|Dialect||Specifies the styles, faces, and layout within a GUI panel. The GUI language.|
|Window||An area of the screen managed by the operating system.|
|Event||A datatype that indicates user input or other activities.|
|Gob||A lower level graphical object, optimized for size and performance.|
|Draw||A block of graphical rendering commands.|
|[?Effect?]||A block of graphical effect commands.|
|[?Richtext?]||A block of text and formatting commands.|