| Libgnomedb Reference Manual |
|---|
GnomeDbGraphItemGnomeDbGraphItem — Parts of data model used with the GnomeDbGraph object. |
GnomeDbGraphItem;
GType gnome_db_graph_item_get_type (void);
GObject* gnome_db_graph_item_new (GnomeDbDict *dict,
GnomeDbBase *ref_obj);
GnomeDbBase* gnome_db_graph_item_get_ref_object
(GnomeDbGraphItem *item);
void gnome_db_graph_item_set_position
(GnomeDbGraphItem *item,
gdouble x,
gdouble y);
void gnome_db_graph_item_get_position
(GnomeDbGraphItem *item,
gdouble *x,
gdouble *y);
Each graph item which needs to have its position kept in the GnomeDbDict object (and written in the dictionary file) has a corresponding GnomeDbGraphItem object. A graph item can hold a reference to any GnomeDbBase object, meaning that the position it stores is the position where the references object's graphical representation will be on the canvas.
GObject* gnome_db_graph_item_new (GnomeDbDict *dict, GnomeDbBase *ref_obj);
Creates a new GnomeDbGraphItem object
dict : |
a GnomeDbDict object |
ref_obj : |
a GnomeDbBase object which the new item will reference, or NULL.
|
| Returns : | the newly created object |
GnomeDbBase* gnome_db_graph_item_get_ref_object (GnomeDbGraphItem *item);
Get the referenced GnomeDbBase object, if it exists.
item : |
a GnomeDbGraphItem object |
| Returns : | the referenced object, or NULL
|
void gnome_db_graph_item_set_position
(GnomeDbGraphItem *item,
gdouble x,
gdouble y);
Sets the position to be remembered for item.
item : |
a GnomeDbGraphItemItem object |
x : |
|
y : |
void gnome_db_graph_item_get_position
(GnomeDbGraphItem *item,
gdouble *x,
gdouble *y);
Get item's position.
item : |
a GnomeDbGraphItemItem object |
x : |
a place where to store the X part of the position, or NULL
|
y : |
a place where to store the Y part of the position, or NULL
|
void user_function (GnomeDbGraphItem *dbgraphitem, gpointer user_data);
dbgraphitem : |
the object which received the signal. |
user_data : |
user data set when the signal handler was connected. |
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