(If you do not see the frame version of
this page with a table of contents in the left frame, click here.)
Topic Events
farVIEW is an event-driven program. As such, it allows topics to receive
and process events. You code a farSlang module to carry out the actual
process, and you associate the module with a specific event using a topic
event entry. farVIEW provides a simple list editor for you to make the
necessary associations between events and the code to handle the events.
To obtain the editor, select a topic using the RMB, then select the Edit
events menu item to obtain the following dialog:
You enter one line for each event you want to assign to farSlang code.
The format of each line is
eventName = moduleName.procName.parameter
For example, let's say you would like to use the handleMouseEnter
proc in the mySpecialTopic module (I just made the names up) to
handle the MouseEnter event. Then enter the following line:
MouseEnter = mySpecialTopic.handleMouseEnter
Here is a table of the farVIEW events that you can associate with farSlang
handlers: TBD
|
Event Name
|
When the event occurs |
|
ExpandingNode
|
|
|
NodeExpanded
|
|
|
OpenNode
|
|
|
CloseNode
|
|
|
DoubleClickNode
|
|
|
MouseEnter
|
|
|
MouseLeave
|
|
|
LeftMouseDown
|
|
|
LeftMouseUp
|
|
|
LeftDoubleClick
|
|
|
MiddleMouseDown
|
|
|
MiddleMouseUp
|
|
|
RightMouseDown
|
|
|
RightMouseUp
|
|
|
RightDoubleClick
|
|
|
LeftDrop
|
|
|
RightDrop
|
|
|
AddAlias
|
|
|
AddChld
|
|
|
EditNode
|
|
|
EditEvents
|
|
|
EditBody
|
|
It is beyond the scope of this description to tell you how to write
a farSlang module. You can read about farSlang here.