GnomeDbGraphItem

GnomeDbGraphItem — Parts of data model used with the GnomeDbGraph object.

Synopsis




                    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);

Object Hierarchy


  GObject
   +----GnomeDbBase
         +----GnomeDbGraphItem

Implemented Interfaces

GnomeDbGraphItem implements GnomeDbXmlStorage.

Properties


  "ref-object"               gpointer              : Read / Write

Signals


  "moved"                                          : Run First

Description

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.

Details

GnomeDbGraphItem

typedef struct _GnomeDbGraphItem GnomeDbGraphItem;

gnome_db_graph_item_get_type ()

GType               gnome_db_graph_item_get_type        (void);

Returns :

gnome_db_graph_item_new ()

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

gnome_db_graph_item_get_ref_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

gnome_db_graph_item_set_position ()

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 :

gnome_db_graph_item_get_position ()

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

Property Details

The "ref-object" property

  "ref-object"               gpointer              : Read / Write

Signal Details

The "moved" signal

void                user_function                      (GnomeDbGraphItem *dbgraphitem,
                                                        gpointer          user_data)        : Run First

dbgraphitem :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

See Also

Se the GnomeDbGraph object.