NAME
Tk::Task - allow multiple "tasks" to proceed at once
DESCRIPTION
`Tk::Task' is a module to allow a lengthy operation to be subdivided
into smaller pieces, with time to process events between pieces. For
example, a program that loaded a large number of records from a database
could make the load process a task, allowing the program to remain
responsive to events--for example, to handle a Stop button!
The steps of each task are executed at idle time, one step each time,
while "normal" processing (handling the event loop) continues. You might
use a task to do simple animations such as turning cards over in a game,
or for other purposes. For example, the Tk::TriangleTree widget uses a
Tk::Task to animate the disclosure triangle.
A Task is *not* the same as a thread. It is more like a "poor man's"
version of threading. However, this is often quite good enough.
CHANGES
Version 1.1 allows a Task to be created from any widget, not just
a MainWindow.
AUTHOR
Kevin Michael Vail <
[email protected]>
