Software Customisation
Reference Manual
Event Driven Graphics : Event Control System (edgCntrl)
The control system is managed by the edgCntrl object; this contains and controls all the data pertaining to the AppWare implementation of the EDG system. There are three main components to the control system, these are:
|
•
|
Active event - this is the currently active event that is applied to all the Design graphic views the system knows about.
|
|
•
|
Stacked events - these are all the events that are currently inactive but the system knows about. Once the currently active event is completed or removed, the last event to be added onto the stack will be made current.
|
|
•
|
Design Graphic views - this is a register of all the graphic views that have been registered for being maintained by the EDG system. Each time an event is added or changed, all the view in the stack will be updated with the same data.
|
There is a single global instance of the edgCntrl object !!edgCntrl, this controls and contains all data for the standard MODEL applications.
