Bonobo API Reference Manual
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BonoboPropertyControl

Name

BonoboPropertyControl -- an interface for exposing property editors as controls

Synopsis



struct      BonoboPropertyControl;
typedef     BonoboPropertyControlClass;
BonoboControl* (*BonoboPropertyControlGetControlFn)
                                            (BonoboPropertyControl *control,
                                             int page_number,
                                             void *closure);
BonoboPropertyControl* bonobo_property_control_new
                                            (BonoboPropertyControlGetControlFn get_fn,
                                             int num_pages,
                                             void *closure);
BonoboPropertyControl* bonobo_property_control_new_full
                                            (BonoboPropertyControlGetControlFn get_fn,
                                             int num_pages,
                                             BonoboEventSource *event_source,
                                             void *closure);
BonoboPropertyControl* bonobo_property_control_construct
                                            (BonoboPropertyControl *property_control,
                                             BonoboEventSource *event_source,
                                             BonoboPropertyControlGetControlFn get_fn,
                                             int num_pages,
                                             void *closure);
void        bonobo_property_control_changed (BonoboPropertyControl *property_control,
                                             CORBA_Environment *opt_ev);
BonoboEventSource* bonobo_property_control_get_event_source
                                            (BonoboPropertyControl *property_control);
#define     BONOBO_PROPERTY_CONTROL_CHANGED

Description

This interface is designed to allow things that offer GUI customization a nice way to provide both multi and single page customization controls. Each page is exposed as a BonoboControl, and contain any arbitary widgets. Each control in a multi-page configuration should expose a string property named "bonobo:title" which contains a translated label suitable for using in a tabbed dialog.

An interface is also provided for applying each page's contents, and requesting help for that page. The interface also provides a BonoboEventSource to which a BonoboListener can be connected. Changes can be listened for which will arrive on the event with name BONOBO_PROPERTY_CONTROL_CHANGED.

A new single page BonoboPropertyControl interface can be created thus:

Example 1. A simple property control interface

static void
stop_start_cb (GtkToggleButton *button, GtkClock *clock)
{
	if (button->active)
		gtk_clock_start (clock);
	else
		gtk_clock_stop (clock);
}

static BonoboControl *
get_page_fn (BonoboPropertyControl *control,
             int                    page_number,
             void                  *closure)
{
	GtkClock  *clock = closure;
	GtkWidget *widget = gtk_checkbutton_new_with_label (
		"Clock is running");
	
	gtk_widget_show (widget);

	gtk_signal_connect (GTK_OBJECT (widget), "toggled",
			    GTK_SIGNAL_FUNC (stop_start_cb), clock);

	return bonobo_control_new (widget);
}

BonoboObject *
add_property_interface (BonoboObject *aggregate, GtkClock *clock)
{
	BonoboPropertyControl *pc;

	pc = bonobo_property_control_new (get_page_fn, 1, clock);

	bonobo_object_add_interface (aggregate_object, BONOBO_OBJET (pc));

	return aggregate_object;
}

Details

struct BonoboPropertyControl

struct BonoboPropertyControl;

BonoboPropertyControlClass

typedef struct {
	BonoboXObjectClass parent_class;

	POA_Bonobo_PropertyControl__epv epv;

	void (* action) (BonoboPropertyControl *property_control, 
			 Bonobo_PropertyControl_Action action);
} BonoboPropertyControlClass;

BonoboPropertyControlGetControlFn ()

BonoboControl* (*BonoboPropertyControlGetControlFn)
                                            (BonoboPropertyControl *control,
                                             int page_number,
                                             void *closure);

control : 
page_number : 
closure : 
Returns : 

bonobo_property_control_new ()

BonoboPropertyControl* bonobo_property_control_new
                                            (BonoboPropertyControlGetControlFn get_fn,
                                             int num_pages,
                                             void *closure);

Creates a BonoboPropertyControl object.

get_fn : The function to be called when the getControl method is called.
num_pages : The number of pages this property control has.
closure : The data to be passed into the get_fn routine
Returns : A pointer to a newly created BonoboPropertyControl object.

bonobo_property_control_new_full ()

BonoboPropertyControl* bonobo_property_control_new_full
                                            (BonoboPropertyControlGetControlFn get_fn,
                                             int num_pages,
                                             BonoboEventSource *event_source,
                                             void *closure);

Creates a BonoboPropertyControl object.

get_fn : The function to be called when the getControl method is called.
num_pages : The number of pages this property control has.
event_source : The event source to use to emit events on.
closure : The data to be passed into the get_fn routine.
Returns : A pointer to a newly created BonoboPropertyControl object.

bonobo_property_control_construct ()

BonoboPropertyControl* bonobo_property_control_construct
                                            (BonoboPropertyControl *property_control,
                                             BonoboEventSource *event_source,
                                             BonoboPropertyControlGetControlFn get_fn,
                                             int num_pages,
                                             void *closure);

Initialises the BonoboPropertyControl object.

property_control : A BonoboPropertyControl object.
event_source : A BonoboEventSource object that will be aggregated onto the property control.
get_fn : Creation routine.
num_pages : 
closure : Data passed to closure routine.
Returns : The newly constructed BonoboPropertyControl.

bonobo_property_control_changed ()

void        bonobo_property_control_changed (BonoboPropertyControl *property_control,
                                             CORBA_Environment *opt_ev);

Tells the server that a value in the property control has been changed, and that it should indicate this somehow.

property_control : The BonoboPropertyControl that has changed.
opt_ev : An optional CORBA_Environment for exception handling.

bonobo_property_control_get_event_source ()

BonoboEventSource* bonobo_property_control_get_event_source
                                            (BonoboPropertyControl *property_control);

Returns the BonoboEventSource that property_control uses.

property_control : The BonoboPropertyControl.
Returns : A BonoboEventSource.

BONOBO_PROPERTY_CONTROL_CHANGED

#define BONOBO_PROPERTY_CONTROL_CHANGED "Bonobo::PropertyControl_changed"

See Also

BonoboProperty, BonoboPropertyBag, BonoboControl



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