三省吾身

/* helloworld.h */
#ifndef __HELLO_WORLD_H_
#define __HELLO_WORLD_H_

#include <glib-object.h>


G_BEGIN_DECLS

#define HELLO_WORLD_TYPE                  (hello_world_get_type())
#define HELLO_WORLD(o)                    (G_TYPE_CHECK_INSTANCE_CAST((o),HELLO_WORLD_TYPE,HelloWorld))
#define HELLO_WORLD_CLASS(o)              (G_TYPE_CHECK_CLASS_CAST((o),HELLO_WORLD_TYPE,HelloWorldClass))
#define HELLO_WORLD_GET_CLASS(o)          (G_TYPE_INSTANCE_GET_CLASS ((o), HELLO_WORLD_TYPE, HelloWorldClass))
#define IS_HELLO_WORLD(o)                 (G_TYPE_CHECK_INSTANCE_TYPE ((o), HELLO_WORLD_TYPE))
#define IS_HELLO_WORLD_CLASS(o)           (G_TYPE_CHECK_CLASS_TYPE ((o), HELLO_WORLD_TYPE))


typedef struct _HelloWorld HelloWorld;
typedef struct _HelloWorldClass HelloWorldClass;

struct _HelloWorld
{
    GObject parent;

};

struct _HelloWorldClass
{
    GObjectClass parent_class;

};


GType
hello_world_get_type(void);


G_END_DECLS


#endif //__HELLO_WORLD_H_

/* helloworld.c */
#ifdef HAVE_CONFIG_H
#   include <config.h>
#endif

#include <glib.h>

#include "helloworld.h"


static void
hello_world_finalize(GObject        *object);

static GObject*
hello_world_constructor(GType                  type,
                guint                  n_construct_properties,
                GObjectConstructParam *construct_properties);



G_DEFINE_TYPE(HelloWorld,hello_world,G_TYPE_OBJECT)


static void
hello_world_class_init(HelloWorldClass *klass)
{
    GObjectClass *object_class= G_OBJECT_CLASS(klass);

    object_class->constructor = hello_world_constructor;
    object_class->finalize = hello_world_finalize;
}


static void
hello_world_init(HelloWorld *objname)
{
}


static GObject*
hello_world_constructor(GType                  type,
                guint                  n_construct_properties,
                GObjectConstructParam *construct_properties)
{
    GObject *object;
    HelloWorld *objname;
    object = G_OBJECT_CLASS(hello_world_parent_class)->constructor(
                                    type,
                                    n_construct_properties,
                                    construct_properties);
    objname = HELLO_WORLD(object);
    return object;
}


static void
hello_world_finalize(GObject        *object)
{
    HelloWorld *objname;
    objname = HELLO_WORLD(object);
    if(G_OBJECT_CLASS(hello_world_parent_class)->finalize){
       G_OBJECT_CLASS(hello_world_parent_class)->finalize(object);
    }
}


HelloWorld*
hello_world_new(void)
{
    return HELLO_WORLD(g_object_new(HELLO_WORLD_TYPE,NULL));
}