| /* Taken from https://developer.gnome.org/gobject/stable/chapter-gobject.html |
| */ |
| |
| #include <glib-object.h> |
| |
| #define MAMAN_TYPE_BAR (maman_bar_get_type()) |
| #define MAMAN_BAR(obj) \ |
| (G_TYPE_CHECK_INSTANCE_CAST((obj), MAMAN_TYPE_BAR, MamanBar)) |
| #define MAMAN_IS_BAR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), MAMAN_TYPE_BAR)) |
| #define MAMAN_BAR_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_CAST((klass), MAMAN_TYPE_BAR, MamanBarClass)) |
| #define MAMAN_IS_BAR_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_TYPE((klass), MAMAN_TYPE_BAR)) |
| #define MAMAN_BAR_GET_CLASS(obj) \ |
| (G_TYPE_INSTANCE_GET_CLASS((obj), MAMAN_TYPE_BAR, MamanBarClass)) |
| |
| typedef struct _MamanBar MamanBar; |
| typedef struct _MamanBarClass MamanBarClass; |
| |
| struct _MamanBar |
| { |
| GObject parent_instance; |
| |
| /* instance members */ |
| }; |
| |
| struct _MamanBarClass |
| { |
| GObjectClass parent_class; |
| |
| /* class members */ |
| }; |
| |
| /* will create maman_bar_get_type and set maman_bar_parent_class */ |
| G_DEFINE_TYPE(MamanBar, maman_bar, G_TYPE_OBJECT); |
| |
| static GObject* maman_bar_constructor(GType gtype, guint n_properties, |
| GObjectConstructParam* properties) |
| { |
| GObject* obj; |
| |
| { |
| /* Always chain up to the parent constructor */ |
| obj = G_OBJECT_CLASS(maman_bar_parent_class) |
| ->constructor(gtype, n_properties, properties); |
| } |
| |
| /* update the object state depending on constructor properties */ |
| |
| return obj; |
| } |
| |
| static void maman_bar_class_init(MamanBarClass* klass) |
| { |
| GObjectClass* gobject_class = G_OBJECT_CLASS(klass); |
| |
| gobject_class->constructor = maman_bar_constructor; |
| } |
| |
| static void maman_bar_init(MamanBar* self) |
| { |
| /* initialize the object */ |
| } |
| |
| int main(int argc, char* argv[]) |
| { |
| MamanBar* bar = g_object_new(MAMAN_TYPE_BAR, NULL); |
| g_object_unref(bar); |
| return 0; |
| } |