charva.awt
Class EventQueue
public class EventQueue
extends java.lang.Object
The EventQueue class queues "AWT" events, which are used to trigger
drawing actions. They can be enqueued using the postEvent() method
by any thread (e.g the keyboard reading thread enqueues KeyEvents),
but only the event-dispatching thread should call getNextEvent(),
because only the event-dispatching thread should do any drawing.
This is because the ncurses library is not re-entrant.
SyncEvents are enqueued with a lower priority than other events, and
if multiple SyncEvents are found on the queue they are coalesced into
a single SyncEvent.
getNextEvent
public AWTEvent getNextEvent()
This method is only called if we know that an event is available.
- the first AWTEvent on the queue.
invokeLater
public static void invokeLater(Runnable runnable_)
Causes the runnable's run() method to be called in the
AWT dispatch thread.
postEvent
public void postEvent(AWTEvent evt_)
queuesAreEmpty
public boolean queuesAreEmpty()
Returns true if both the high-priority queue and the low-priority
queue are empty. It is not necessary to make this synchronized
because it is called from a synchronized method.
waitForNextEvent
public AWTEvent waitForNextEvent()
Block until an event is available, then return the event.