BonoboWidget

## BonoboWidget BonoboWidget — Simplified embedding of widgets in Bonobo. |

## Synopsis

                BonoboWidget;
                BonoboWidgetPrivate;
                BonoboWidgetClass;
    Bonobo_Unknown bonobo_widget_get_objref     (BonoboWidget *bw);
    GtkWidget*  bonobo_widget_new_control       (const char *moniker,
                                                 Bonobo_UIContainer uic);
    GtkWidget*  bonobo_widget_new_control_from_objref
                                                (Bonobo_Control control,
                                                 Bonobo_UIContainer uic);
    BonoboControlFrame* bonobo_widget_get_control_frame
                                                (BonoboWidget *bw);
    Bonobo_UIContainer bonobo_widget_get_ui_container
                                                (BonoboWidget *bw);
    void        (*BonoboWidgetAsyncFn)          (BonoboWidget *widget,
                                                 CORBA_Environment *ev,
                                                 gpointer user_data);
    GtkWidget*  bonobo_widget_new_control_async (const char *moniker,
                                                 Bonobo_UIContainer uic,
                                                 BonoboWidgetAsyncFn fn,
                                                 gpointer user_data);
    BonoboWidget* bonobo_widget_construct_control_from_objref
                                                (BonoboWidget *bw,
                                                 Bonobo_Control control,
                                                 Bonobo_UIContainer uic,
                                                 CORBA_Environment *ev);
    BonoboWidget* bonobo_widget_construct_control
                                                (BonoboWidget *bw,
                                                 const char *moniker,
                                                 Bonobo_UIContainer uic,
                                                 CORBA_Environment *ev);
    void        bonobo_widget_set_property      (BonoboWidget *control,
                                                 const char *first_prop,
                                                 ...);
    void        bonobo_widget_get_property      (BonoboWidget *control,
                                                 const char *first_prop,
                                                 ...);
    #define     bonobo_widget_get_uih           (w)

## Object Hierarchy

      GObject
       +----GtkObject
             +----GtkWidget
                   +----GtkContainer
                         +----GtkBin
                               +----BonoboWidget

## Implemented Interfaces

BonoboWidget implements AtkImplementorIface.

## Description

Bonobo component embedding for hydrocephalic imbeciles.

Pure cane sugar.

This purpose of BonoboWidget is to make container-side use of Bonobo as easy as pie. This widget has two functions:

1. Provide a simple wrapper for embedding Controls. Embedding controls is already really easy, but BonoboWidget reduces the work from about 5 lines to 1. To embed a given control, just do:

              bw = bonobo_widget_new_control ("id for control", toplevel_ui_handler);
              gtk_container_add (some_container, bw);

   You are free to make the 2nd (UIContainer) argument to `bonobo_widget_new_control()` be CORBA_OBJECT_NIL.

2. To provide an extremely simple wrapper for using Monikers. In fact all BonoboWidget use uses the OAFIID: moniker to activate its sub-components. However monikers (bonobo-moniker-util) are far more powerful than this:

       	         bw = bonobo_widget_new_control ("file:/demo/a.jpeg", toplevel_ui_handler);

   will launch an application that can render a jpeg as a control, usualy the Eye Of Gnome (EOG), and embed it as a control.

There are also functions for fetching and setting values in the Control PropertyBag, but the use of these functions is discouraged.

## Details

### BonoboWidget

    typedef struct _BonoboWidget BonoboWidget;

### BonoboWidgetPrivate

    typedef struct _BonoboWidgetPrivate BonoboWidgetPrivate;

### BonoboWidgetClass

    typedef struct {
    	GtkBinClass	 bin_class;

    	gpointer dummy[4];
    } BonoboWidgetClass;

### bonobo_widget_get_objref ()

    Bonobo_Unknown bonobo_widget_get_objref     (BonoboWidget *bw);

`bw` : |
Returns : |

### bonobo_widget_new_control ()

    GtkWidget*  bonobo_widget_new_control       (const char *moniker,
                                                 Bonobo_UIContainer uic);

This function is a simple wrapper for easily embedding controls into applications. It will launch the component identified by `id` and will return it as a GtkWidget.

`moniker` : | A Moniker describing the object to be activated
`uic` : | Bonobo_UIContainer for the launched object or CORBA_OBJECT_NIL if there is no need of menu / toolbar merging.
Returns : | A GtkWidget that is bound to the Bonobo Control.

### bonobo_widget_new_control_from_objref ()

    GtkWidget*  bonobo_widget_new_control_from_objref
                                                (Bonobo_Control control,
                                                 Bonobo_UIContainer uic);

This function is a simple wrapper for easily embedding controls into applications. This function is used when you have already a CORBA object reference to an IDL:Bonobo/Control:1.0 (the `control`) argument.

`control` : | A CORBA Object reference to an IDL:Bonobo/Control:1.0
`uic` : | Bonobo_UIContainer for the launched object or CORBA_OBJECT_NIL if there is no need of menu / toolbar merging.
Returns : | the `control` wrapped as a GtkWidget.

### bonobo_widget_get_control_frame ()

    BonoboControlFrame* bonobo_widget_get_control_frame
                                                (BonoboWidget *bw);

Every IDL:Bonobo/Control:1.0 needs to be placed inside an IDL:Bonobo/ControlFrame:1.0. This returns the BonoboControlFrame object that wraps the Control in the `bonobo_widget`.

`bw` : |
Returns : | The BonoboControlFrame associated with the `bonobo_widget`

### bonobo_widget_get_ui_container ()

    Bonobo_UIContainer bonobo_widget_get_ui_container
                                                (BonoboWidget *bw);

`bw` : |
Returns : | the CORBA object reference to the Bonobo_UIContainer associated with the `bonobo_widget`.

### BonoboWidgetAsyncFn ()

    void        (*BonoboWidgetAsyncFn)          (BonoboWidget *widget,
                                                 CORBA_Environment *ev,
                                                 gpointer user_data);

`widget` : |
`ev` : |
`user_data` : |

### bonobo_widget_new_control_async ()

    GtkWidget*  bonobo_widget_new_control_async (const char *moniker,
                                                 Bonobo_UIContainer uic,
                                                 BonoboWidgetAsyncFn fn,
                                                 gpointer user_data);

This method creates a widget, returns it to the user, and asynchronously activates a control to insert into the widget.

`moniker` : | A Moniker describing the object to be activated
`uic` : | Bonobo_UIContainer for the launched object or CORBA_OBJECT_NIL if there is no need of menu / toolbar merging.
`fn` : | a callback function called when the activation has happend
`user_data` : | user data to be passed back to the callback.
Returns : | a (temporarily) empty Widget to be filled with the control later

### bonobo_widget_construct_control_from_objref ()

    BonoboWidget* bonobo_widget_construct_control_from_objref
                                                (BonoboWidget *bw,
                                                 Bonobo_Control control,
                                                 Bonobo_UIContainer uic,
                                                 CORBA_Environment *ev);

This is a constructor function. Only usable for wrapping and derivation of new objects. For normal use, please refer to bonobo_widget_new_control_from_objref.

`bw` : | A BonoboWidget to construct
`control` : | A CORBA Object reference to an IDL:Bonobo/Control:1.0
`uic` : | Bonobo_UIContainer for the launched object or CORBA_OBJECT_NIL if there is no need of menu / toolbar merging.
`ev` : | a CORBA exception environment
Returns : | A BonoboWidget (the `bw`)

### bonobo_widget_construct_control ()

    BonoboWidget* bonobo_widget_construct_control
                                                (BonoboWidget *bw,
                                                 const char *moniker,
                                                 Bonobo_UIContainer uic,
                                                 CORBA_Environment *ev);

This is a constructor function. Only usable for wrapping and derivation of new objects. For normal use, please refer to bonobo_widget_new_control.

This function will unref the passed in `bw` in case it cannot launch the component and return `NULL` in such a case. Otherwise it returns the `bw` itself.

`bw` : | A BonoboWidget to construct
`moniker` : | A Moniker describing the object to be activated
`uic` : | Bonobo_UIContainer for the launched object or CORBA_OBJECT_NIL if there is no need of menu / toolbar merging.
`ev` : | a CORBA exception environment
Returns : | A BonoboWidget or `NULL`

### bonobo_widget_set_property ()

    void        bonobo_widget_set_property      (BonoboWidget *control,
                                                 const char *first_prop,
                                                 ...);

This is a utility function used to set a number of properties in the Bonobo Control in `control`.

This function takes a variable list of arguments that must be NULL terminated. Arguments come in tuples: a string (for the argument name) and the data type that is to be transfered. The implementation of the actual setting of the PropertyBag values is done by the `bonobo_property_bag_client_setv()` function).

This only works for BonoboWidgets that represent controls (ie, that were returned by `bonobo_widget_new_control_from_objref()` or `bonobo_widget_new_control()`.

`control` : | A BonoboWidget that represents an IDL:Bonobo/Control:1.0
`first_prop` : | first property name to set.
`...` : |

### bonobo_widget_get_property ()

    void        bonobo_widget_get_property      (BonoboWidget *control,
                                                 const char *first_prop,
                                                 ...);

This is a utility function used to get a number of properties in the Bonobo Control in `control`.

This function takes a variable list of arguments that must be NULL terminated. Arguments come in tuples: a string (for the argument name) and a pointer where the data will be stored. The implementation of the actual setting of the PropertyBag values is done by the `bonobo_property_bag_client_setv()` function).

This only works for BonoboWidgets that represent controls (ie, that were returned by `bonobo_widget_new_control_from_objref()` or `bonobo_widget_new_control()`.

`control` : | A BonoboWidget that represents an IDL:Bonobo/Control:1.0
`first_prop` : | first property name to set.
`...` : |

### bonobo_widget_get_uih()

    #define bonobo_widget_get_uih(w) bonobo_widget_get_ui_container (w)

`w` : |
Returns : |

## See Also

Object activation happens with `bonobo_get_object()`.

BonoboControl, BonoboControlFrame, BonoboObject, BonoboView, BonoboEmbeddable, BonoboUIContainer, BonoboItemContainer.