GnomeDbCanvasItem

GnomeDbCanvasItem — Base class for all the GnomeCanvasItem derived widgets in libgnomedb.

Synopsis




                    GnomeDbCanvasItem;
GType               gnome_db_canvas_item_get_type       (void);
GnomeDbCanvas*      gnome_db_canvas_item_get_canvas     (GnomeDbCanvasItem *item);
GnomeDbGraphItem*   gnome_db_canvas_item_get_graph_item (GnomeDbCanvasItem *item);

Object Hierarchy


  GObject
   +----GInitiallyUnowned
         +----GtkObject
               +----GnomeCanvasItem
                     +----GnomeCanvasGroup
                           +----GnomeDbCanvasItem
                                 +----GnomeDbCanvasCursor
                                 +----GnomeDbCanvasText
                                 +----GnomeDbCanvasEntity
                                 +----GnomeDbCanvasJoin

Properties


  "allow-drag"               gboolean              : Read / Write
  "allow-move"               gboolean              : Read / Write
  "graph-item"               gpointer              : Read / Write
  "tip-text"                 gchararray            : Read / Write

Signals


  "drag-action"                                    : Run First
  "moved"                                          : Run First
  "moving"                                         : Run First
  "shifted"                                        : Run First

Description

This object adds some functionnalities on top of the GnomeCanvasItem objects such as synchronisation with a GnomeDbGraphItem object (to have a persistent position on the canvas), the ability to be moved on the canvas, and the ability to initiate and report simple drag and drop within the canvas.

Details

GnomeDbCanvasItem

typedef struct _GnomeDbCanvasItem GnomeDbCanvasItem;

gnome_db_canvas_item_get_type ()

GType               gnome_db_canvas_item_get_type       (void);

Returns :

gnome_db_canvas_item_get_canvas ()

GnomeDbCanvas*      gnome_db_canvas_item_get_canvas     (GnomeDbCanvasItem *item);

Get the GnomeDbCanvas on which item is drawn

item :

 a GnomeDbCanvasItem object

Returns :

 the GnomeDbCanvas widget

gnome_db_canvas_item_get_graph_item ()

GnomeDbGraphItem*   gnome_db_canvas_item_get_graph_item (GnomeDbCanvasItem *item);

Get the associated GnomeDbGraphItem to item.

item :

 a GnomeDbCanvasItem object

Returns :

 the GnomeDbGraphItem, or NULL

Property Details

The "allow-drag" property

  "allow-drag"               gboolean              : Read / Write

Default value: FALSE

The "allow-move" property

  "allow-move"               gboolean              : Read / Write

Default value: TRUE

The "graph-item" property

  "graph-item"               gpointer              : Read / Write

The "tip-text" property

  "tip-text"                 gchararray            : Read / Write

Default value: NULL

Signal Details

The "drag-action" signal

void                user_function                      (GnomeDbCanvasItem *dbcanvasitem,
                                                        gpointer           arg1,
                                                        gpointer           arg2,
                                                        gpointer           user_data)         : Run First

dbcanvasitem :

 the object which received the signal.

arg1 :

arg2 :

user_data :

 user data set when the signal handler was connected.

The "moved" signal

void                user_function                      (GnomeDbCanvasItem *dbcanvasitem,
                                                        gpointer           user_data)         : Run First

dbcanvasitem :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "moving" signal

void                user_function                      (GnomeDbCanvasItem *dbcanvasitem,
                                                        gpointer           user_data)         : Run First

dbcanvasitem :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.

The "shifted" signal

void                user_function                      (GnomeDbCanvasItem *dbcanvasitem,
                                                        gpointer           user_data)         : Run First

dbcanvasitem :

 the object which received the signal.

user_data :

 user data set when the signal handler was connected.