include/mb_observer.h File Reference

#include "mb_tools.h"

Go to the source code of this file.

Classes
struct	_event
struct	_observer
	Observer of observer pattern. More...
struct	_subject
	Subject of observer pattern. More...
struct	_mouse_event
struct	_ob_factory
	Observer factory. More...
Defines
#define	SUBF_STOP_PROPAGATE   0x1
	Flag that make a subject to propagate events to parents.
#define	SUBF_BUSY   0x2
	in subject_notify()
#define	SUBF_FREE   0x4
	in postponding subject_free()
#define	MOUSE_BUT1   0x1
#define	MOUSE_BUT2   0x2
#define	MOUSE_BUT3   0x4
Typedefs
typedef struct _event	event_t
typedef struct _observer	observer_t
typedef struct _subject	subject_t
typedef struct _mouse_event	mouse_event_t
typedef struct _ob_factory	ob_factory_t
typedef void(*	evt_handler )(event_t *event, void *arg)
Enumerations
enum	{   OBJT_GEO, OBJT_COORD, OBJT_KB, OBJT_PROGM,   OBJT_RDMAN }
enum	{   EVT_MOUSE_OVER, EVT_MOUSE_OUT, EVT_MOUSE_MOVE, EVT_MOUSE_BUT_PRESS,   EVT_MOUSE_BUT_RELEASE, EVT_KB_PRESS, EVT_KB_RELEASE, EVT_PROGM_COMPLETE,   EVT_RDMAN_REDRAW }
Functions
subject_t *	subject_new (ob_factory_t *factory, void *obj, int obj_type)
void	subject_free (ob_factory_t *factory, subject_t *subject)
void	subject_notify (ob_factory_t *factory, subject_t *subject, event_t *evt)
observer_t *	subject_add_observer (ob_factory_t *factory, subject_t *subject, evt_handler hdr, void *arg)
void	subject_remove_observer (ob_factory_t *factory, subject_t *subject, observer_t *observer)

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Define Documentation

#define MOUSE_BUT1   0x1

Definition at line 54 of file mb_observer.h.

#define MOUSE_BUT2   0x2

Definition at line 55 of file mb_observer.h.

#define MOUSE_BUT3   0x4

Definition at line 56 of file mb_observer.h.

#define SUBF_BUSY   0x2

in subject_notify()

Definition at line 42 of file mb_observer.h.

#define SUBF_FREE   0x4

in postponding subject_free()

Definition at line 43 of file mb_observer.h.

#define SUBF_STOP_PROPAGATE   0x1

Flag that make a subject to propagate events to parents.

Definition at line 41 of file mb_observer.h.

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Typedef Documentation

typedef struct _event event_t

Definition at line 6 of file mb_observer.h.

typedef void(* evt_handler)(event_t *event, void *arg)

Definition at line 11 of file mb_observer.h.

typedef struct _mouse_event mouse_event_t

Definition at line 9 of file mb_observer.h.

typedef struct _ob_factory ob_factory_t

Definition at line 10 of file mb_observer.h.

typedef struct _observer observer_t

Definition at line 7 of file mb_observer.h.

typedef struct _subject subject_t

Definition at line 8 of file mb_observer.h.

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Enumeration Type Documentation

anonymous enum

Enumerator:

OBJT_GEO
OBJT_COORD
OBJT_KB
OBJT_PROGM
OBJT_RDMAN

Definition at line 45 of file mb_observer.h.

anonymous enum

Enumerator:

EVT_MOUSE_OVER
EVT_MOUSE_OUT
EVT_MOUSE_MOVE
EVT_MOUSE_BUT_PRESS
EVT_MOUSE_BUT_RELEASE
EVT_KB_PRESS
EVT_KB_RELEASE
EVT_PROGM_COMPLETE
EVT_RDMAN_REDRAW

Definition at line 73 of file mb_observer.h.

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Function Documentation

observer_t* subject_add_observer	(	ob_factory_t *	factory,
		subject_t *	subject,
		evt_handler	hdr,
		void *	arg
	)

Definition at line 79 of file observer.c.

void subject_free	(	ob_factory_t *	factory,
		subject_t *	subject
	)

Todo:

Keep ob_factory following subject objects.

Definition at line 28 of file observer.c.

subject_t* subject_new	(	ob_factory_t *	factory,
		void *	obj,
		int	obj_type
	)

Definition at line 10 of file observer.c.

void subject_notify	(	ob_factory_t *	factory,
		subject_t *	subject,
		event_t *	evt
	)

Note:

What is happend when the subject is freed by observer? Postponding the request of free until notification been finished. (SUBF_BUSY / SUBF_FREE)

Definition at line 48 of file observer.c.

void subject_remove_observer	(	ob_factory_t *	factory,
		subject_t *	subject,
		observer_t *	observer
	)

Definition at line 95 of file observer.c.