Xfconf-GObject Binding: xfconf Reference Manual

Xfconf-GObject Binding

Xfconf-GObject Binding — Functions to bind Xfconf properties to GObject properties

Functions

gulong	xfconf_g_property_bind ()
gulong	xfconf_g_property_bind_gdkcolor ()
gulong	xfconf_g_property_bind_gdkrgba ()
void	xfconf_g_property_unbind ()
void	xfconf_g_property_unbind_by_property ()
void	xfconf_g_property_unbind_all ()

Description

Often it may be useful to bind an Xfconf property to a GObject property. Settings dialogs often display the current value of an Xfconf property, and a user may edit the value to change the value in the Xfconf store. If the Xfconf property changes outside the settings dialog, the user will usually want to see the settings dialog automatically update to reflect the new value.

With a single line of code, Xfconf's binding functionality can automate all this.

Functions

xfconf_g_property_bind ()

gulong
xfconf_g_property_bind (XfconfChannel *channel,
                        const gchar *xfconf_property,
                        GType xfconf_property_type,
                        gpointer object,
                        const gchar *object_property);

Binds an Xfconf property to a GObject property. If the property is changed via either the GObject or Xfconf, the corresponding property will also be updated. The binding is initialized from the Xfconf property, i.e. the initial value of the GObject property is overwritten.

Note that xfconf_property_type is required since xfconf_property may or may not already exist in the Xfconf store. The type of object_property will be determined automatically. If the two types do not match, a conversion will be attempted.

Parameters

channel	An XfconfChannel.
xfconf_property	A property on `channel` .
xfconf_property_type	The type of `xfconf_property` .
object	A GObject.
object_property	A valid property on `object` .

Returns

an ID number that can be used to later remove the binding.

xfconf_g_property_bind_gdkcolor ()

gulong
xfconf_g_property_bind_gdkcolor (XfconfChannel *channel,
                                 const gchar *xfconf_property,
                                 gpointer object,
                                 const gchar *object_property);

Binds an Xfconf property to a GObject property of type GDK_TYPE_COLOR (aka a GdkColor struct). If the property is changed via either the GObject or Xfconf, the corresponding property will also be updated. The binding is initialized from the Xfconf property, i.e. the initial value of the GObject property is overwritten.

This is a special-case binding; the GdkColor struct is not ideal as-is for binding to a property, so it is stored in the Xfconf store as four 16-bit unsigned ints (red, green, blue, alpha). Since GdkColor (currently) only supports RGB and not RGBA, the last value will always be set to 0xFFFF.

Parameters

channel	An XfconfChannel.
xfconf_property	A property on `channel` .
object	A GObject.
object_property	A valid property on `object` .

Returns

an ID number that can be used to later remove the binding.

xfconf_g_property_bind_gdkrgba ()

gulong
xfconf_g_property_bind_gdkrgba (XfconfChannel *channel,
                                const gchar *xfconf_property,
                                gpointer object,
                                const gchar *object_property);

Binds an Xfconf property to a GObject property of type GDK_TYPE_RGBA (aka a GdkRGBA struct). If the property is changed via either the GObject or Xfconf, the corresponding property will also be updated. The binding is initialized from the Xfconf property, i.e. the initial value of the GObject property is overwritten.

This is a special-case binding; the GdkRGBA struct is not ideal as-is for binding to a property, so it is stored in the Xfconf store as four 16-bit unsigned ints (red, green, blue, alpha).

Parameters

channel	An XfconfChannel.
xfconf_property	A property on `channel` .
object	A GObject.
object_property	A valid property on `object` .

Returns

an ID number that can be used to later remove the binding.

Since: 4.12.1

xfconf_g_property_unbind ()

void
xfconf_g_property_unbind (gulong id);

Removes an Xfconf/GObject property binding based on the binding ID number. See xfconf_g_property_bind().

Parameters

A binding ID number.

xfconf_g_property_unbind_by_property ()

void
xfconf_g_property_unbind_by_property (XfconfChannel *channel,
                                      const gchar *xfconf_property,
                                      gpointer object,
                                      const gchar *object_property);

Causes an Xfconf channel previously bound to a GObject property (see xfconf_g_property_bind()) to no longer be bound.

Parameters

channel	An XfconfChannel.
xfconf_property	A bound property on `channel` .
object	A GObject.
object_property	A bound property on `object` .

xfconf_g_property_unbind_all ()

void
xfconf_g_property_unbind_all (gpointer channel_or_object);

Unbinds all Xfconf channel bindings (see xfconf_g_property_bind()) to object . If object is an XfconfChannel, it will unbind all xfconf properties on that channel. If object is a regular GObject with properties bound to a channel, all those bindings will be removed.

Parameters

channel_or_object

A GObject or XfconfChannel.