Subclasses must override the following methods:
_timer_start
: Backend-specific code for starting the timer.
_timer_stop
: Backend-specific code for stopping the timer.
Subclasses may additionally override the following methods:
_timer_set_single_shot
: Code for setting the timer to single shot operating mode, if supported by the timer object. If not, the :None:None:`Timer` class itself will store the flag and the _on_timer
method should be overridden to support such behavior.
_timer_set_interval
: Code for setting the interval on the timer, if there is a method for doing so on the timer object.
_on_timer
: The internal function that any timer object should call, which will handle the task of running all callbacks that have been set.
A base class for providing timer events, useful for things animations. Backends need to implement a few specific methods in order to use their own timing mechanisms so that the timer events are integrated into their event loops.
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