timer.hpp File Reference

Contains the gui2 timer routines. More...

#include "utils/functional.hpp"
#include <SDL_types.h>

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Namespaces
	gui2
	A class inherited from ttext_box that displays its input as stars.

Functions
size_t	gui2::add_timer (const Uint32 interval, const std::function< void(size_t id)> &callback, const bool repeat=false)
	Adds a new timer. More...
bool	gui2::remove_timer (const size_t id)
	Removes a timer. More...
bool	gui2::execute_timer (const size_t id)
	Executes a timer. More...

Detailed Description

Contains the gui2 timer routines.

This code avoids the following problems with the sdl timers:

• the callback must be a C function with a fixed signature.
• the callback needs to push an event in the event queue, between the pushing and execution of that event the timer can't be stopped. (Makes sense since the timer has expired, but not what the user wants.)

With these functions it's possible to remove the event between pushing in the queue and the actual execution. Since the callback is a std::function object it's possible to make the callback as fancy as wanted.

Definition in file timer.hpp.