the property on source
to bind
the target #GObject
the property on target
to bind
flags to pass to #GBinding
Creates a binding between source_property
on source
and target_property
on target,
allowing you to set the transformation functions to be used by
the binding.
This function is the language bindings friendly version of g_object_bind_property_full(), using #GClosures instead of function pointers.
the property on source
to bind
the target #GObject
the property on target
to bind
flags to pass to #GBinding
a #GClosure wrapping the transformation function from the source
to the target,
or %NULL to use the default
a #GClosure wrapping the transformation function from the target
to the source,
or %NULL to use the default
This function is intended for #GObject implementations to re-enforce a [floating][floating-ref] object reference. Doing this is seldom required: all #GInitiallyUnowneds are created with a floating reference which usually just needs to be sunken by calling g_object_ref_sink().
Increases the freeze count on object
. If the freeze count is
non-zero, the emission of "notify" signals on object
is
stopped. The signals are queued until the freeze count is decreased
to zero. Duplicate notifications are squashed so that at most one
#GObject::notify signal is emitted for each property modified while the
object is frozen.
This is necessary for accessors that modify multiple properties to prevent premature notification while the object is still being modified.
Retrieves the global back forward list for the #IdeContext.
Consumers of this should branch the #IdeBackForwardList and merge them when their document stack is closed.
See ide_back_forward_list_branch() and ide_back_forward_list_merge() for more information.
Gets the #IdeContext:buffer-manager property. The buffer manager is responsible for loading and saving buffers (files) within the #IdeContext. It provides a convenient place for scripts to hook into the load and save process.
Fetches the "build-system" property of context
.
Gets the #IdeConfigurationManager for the context.
The configuration manager is responsible for loading and saving configurations. Configurations consist of information about how to perform a particular build. Such information includes the target #IdeDevice, the #IdeRuntime to use, and various other build options.
Gets a named field from the objects table of associations (see g_object_set_data()).
name of the key for that association
Retrieves the "device-manager" property. The device manager is responsible for connecting and disconnecting to physical or virtual devices within LibIDE.
Gets the #IdeDiagnosticsManager for the context.
Gets a property of an object.
The value
can be:
In general, a copy is made of the property contents and the caller is responsible for freeing the memory by calling g_value_unset().
Note that g_object_get_property() is really intended for language bindings, g_object_get() is much more convenient for C programming.
the name of the property to get
return location for the property value
This function gets back user data pointers stored via g_object_set_qdata().
A #GQuark, naming the user data pointer
Gets the IdeContext:recent-manager property. The recent manager is a GtkRecentManager instance that should be used for the workbench.
Retrieves the "root-build-dir" for the context. This is the root directory that will contain builds made for various devices.
Gets the #IdeRunManager for the context. This manager object simplifies the process of running an #IdeBuildTarget from the build system. Primarily, it enforces that only a single target may be run at a time, since that is what the UI will expect.
Gets the #IdeRuntimeManager for the LibIDE context.
The runtime manager provies access to #IdeRuntime instances via the #GListModel interface. These can provide support for building projects in various runtimes such as xdg-app.
Retrieves the search engine for the context.
Retrieves a service matching service_type
. If no match was found, a type
implementing the requested service type will be returned. If no matching
service type could be found, then an instance of the service will be
created, started, and returned.
A #GType of the service desired.
Gets the #IdeContext:snippets-manager property.
Gets the #IdeTransferManager for the context.
Returns the unsaved files for the #IdeContext. These are the contents of open buffers in the IDE.
Gets n_properties
properties for an object
.
Obtained properties will be set to values
. All properties must be valid.
Warnings will be emitted and undefined behaviour may result if invalid
properties are passed in.
the names of each property to get
the values of each property to get
Puts a hold on the #IdeContext, preventing the context from being unloaded until a call to ide_context_release().
If ide_context_unload_async() is called while a hold is in progress, the unload will be delayed until ide_context_release() has been called the same number of times as ide_context_hold().
Starts asynchronous initialization of the object implementing the interface. This must be done before any real use of the object after initial construction. If the object also implements #GInitable you can optionally call g_initable_init() instead.
This method is intended for language bindings. If writing in C, g_async_initable_new_async() should typically be used instead.
When the initialization is finished, callback
will be called. You can
then call g_async_initable_init_finish() to get the result of the
initialization.
Implementations may also support cancellation. If cancellable
is not
%NULL, then initialization can be cancelled by triggering the cancellable
object from another thread. If the operation was cancelled, the error
%G_IO_ERROR_CANCELLED will be returned. If cancellable
is not %NULL, and
the object doesn't support cancellable initialization, the error
%G_IO_ERROR_NOT_SUPPORTED will be returned.
As with #GInitable, if the object is not initialized, or initialization returns with an error, then all operations on the object except g_object_ref() and g_object_unref() are considered to be invalid, and have undefined behaviour. They will often fail with g_critical() or g_warning(), but this must not be relied on.
Callers should not assume that a class which implements #GAsyncInitable can be initialized multiple times; for more information, see g_initable_init(). If a class explicitly supports being initialized multiple times, implementation requires yielding all subsequent calls to init_async() on the results of the first call.
For classes that also support the #GInitable interface, the default implementation of this method will run the g_initable_init() function in a thread, so if you want to support asynchronous initialization via threads, just implement the #GAsyncInitable interface without overriding any interface methods.
the [I/O priority][io-priority] of the operation
optional #GCancellable object, %NULL to ignore.
a #GAsyncReadyCallback to call when the request is satisfied
Finishes asynchronous initialization and returns the result. See g_async_initable_init_async().
a #GAsyncResult.
Checks whether object
has a [floating][floating-ref] reference.
Finishes the async construction for the various g_async_initable_new calls, returning the created object or %NULL on error.
the #GAsyncResult from the callback
Emits a "notify" signal for the property property_name
on object
.
When possible, eg. when signaling a property change from within the class that registered the property, you should use g_object_notify_by_pspec() instead.
Note that emission of the notify signal may be blocked with g_object_freeze_notify(). In this case, the signal emissions are queued and will be emitted (in reverse order) when g_object_thaw_notify() is called.
the name of a property installed on the class of object
.
Emits a "notify" signal for the property specified by pspec
on object
.
This function omits the property name lookup, hence it is faster than g_object_notify().
One way to avoid using g_object_notify() from within the class that registered the properties, and using g_object_notify_by_pspec() instead, is to store the GParamSpec used with g_object_class_install_property() inside a static array, e.g.:
enum
{
PROP_0,
PROP_FOO,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
static void
my_object_class_init (MyObjectClass *klass)
{
properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "The foo",
0, 100,
50,
G_PARAM_READWRITE);
g_object_class_install_property (gobject_class,
PROP_FOO,
properties[PROP_FOO]);
}
and then notify a change on the "foo" property with:
g_object_notify_by_pspec (self, properties[PROP_FOO]);
the #GParamSpec of a property installed on the class of object
.
Increase the reference count of object,
and possibly remove the
[floating][floating-ref] reference, if object
has a floating reference.
In other words, if the object is floating, then this call "assumes ownership" of the floating reference, converting it to a normal reference by clearing the floating flag while leaving the reference count unchanged. If the object is not floating, then this call adds a new normal reference increasing the reference count by one.
Since GLib 2.56, the type of object
will be propagated to the return type
under the same conditions as for g_object_ref().
Releases a hold on the context previously created with ide_context_hold().
If a pending unload of the context has been requested, it will be dispatched once the hold count reaches zero.
Releases all references to other objects. This can be used to break reference cycles.
This function should only be called from object system implementations.
Each object carries around a table of associations from strings to pointers. This function lets you set an association.
If the object already had an association with that name, the old association will be destroyed.
Internally, the key
is converted to a #GQuark using g_quark_from_string().
This means a copy of key
is kept permanently (even after object
has been
finalized) — so it is recommended to only use a small, bounded set of values
for key
in your program, to avoid the #GQuark storage growing unbounded.
name of the key
data to associate with that key
Sets a property on an object.
the name of the property to set
the value
Sets the "root-build-dir" property. This is the root directory that will be used when building projects for projects that support building out of tree.
the path to the root build directory.
Remove a specified datum from the object's data associations, without invoking the association's destroy handler.
name of the key
This function gets back user data pointers stored via
g_object_set_qdata() and removes the data
from object
without invoking its destroy() function (if any was
set).
Usually, calling this function is only required to update
user data pointers with a destroy notifier, for example:
void
object_add_to_user_list (GObject *object,
const gchar *new_string)
{
// the quark, naming the object data
GQuark quark_string_list = g_quark_from_static_string ("my-string-list");
// retrieve the old string list
GList *list = g_object_steal_qdata (object, quark_string_list);
// prepend new string
list = g_list_prepend (list, g_strdup (new_string));
// this changed 'list', so we need to set it again
g_object_set_qdata_full (object, quark_string_list, list, free_string_list);
}
static void
free_string_list (gpointer data)
{
GList *node, *list = data;
for (node = list; node; node = node->next)
g_free (node->data);
g_list_free (list);
}
Using g_object_get_qdata() in the above example, instead of g_object_steal_qdata() would have left the destroy function set, and thus the partial string list would have been freed upon g_object_set_qdata_full().
A #GQuark, naming the user data pointer
Reverts the effect of a previous call to
g_object_freeze_notify(). The freeze count is decreased on object
and when it reaches zero, queued "notify" signals are emitted.
Duplicate notifications for each property are squashed so that at most one #GObject::notify signal is emitted for each property, in the reverse order in which they have been queued.
It is an error to call this function when the freeze count is zero.
This function attempts to unload various components in the #IdeContext. This should be called before you dispose the context. Unsaved buffers will be persisted to the drafts directory. More operations may be added in the future.
If there is a hold on the #IdeContext, created by ide_context_hold(), then the unload request will be delayed until the appropriate number of calls to ide_context_release() have been called.
Decreases the reference count of object
. When its reference count
drops to 0, the object is finalized (i.e. its memory is freed).
If the pointer to the #GObject may be reused in future (for example, if it is an instance variable of another object), it is recommended to clear the pointer to %NULL rather than retain a dangling pointer to a potentially invalid #GObject instance. Use g_clear_object() for this.
This function essentially limits the life time of the closure
to
the life time of the object. That is, when the object is finalized,
the closure
is invalidated by calling g_closure_invalidate() on
it, in order to prevent invocations of the closure with a finalized
(nonexisting) object. Also, g_object_ref() and g_object_unref() are
added as marshal guards to the closure,
to ensure that an extra
reference count is held on object
during invocation of the
closure
. Usually, this function will be called on closures that
use this object
as closure data.
#GClosure to watch
Find the #GParamSpec with the given name for an
interface. Generally, the interface vtable passed in as g_iface
will be the default vtable from g_type_default_interface_ref(), or,
if you know the interface has already been loaded,
g_type_default_interface_peek().
any interface vtable for the interface, or the default vtable for the interface
name of a property to look up.
Add a property to an interface; this is only useful for interfaces that are added to GObject-derived types. Adding a property to an interface forces all objects classes with that interface to have a compatible property. The compatible property could be a newly created #GParamSpec, but normally g_object_class_override_property() will be used so that the object class only needs to provide an implementation and inherits the property description, default value, bounds, and so forth from the interface property.
This function is meant to be called from the interface's default
vtable initialization function (the class_init
member of
#GTypeInfo.) It must not be called after after class_init
has
been called for any object types implementing this interface.
If pspec
is a floating reference, it will be consumed.
any interface vtable for the interface, or the default vtable for the interface.
the #GParamSpec for the new property
Lists the properties of an interface.Generally, the interface
vtable passed in as g_iface
will be the default vtable from
g_type_default_interface_ref(), or, if you know the interface has
already been loaded, g_type_default_interface_peek().
any interface vtable for the interface, or the default vtable for the interface
Creates a new instance of a #GObject subtype and sets its properties.
Construction parameters (see %G_PARAM_CONSTRUCT, %G_PARAM_CONSTRUCT_ONLY) which are not explicitly specified are set to their default values.
the type id of the #GObject subtype to instantiate
an array of #GParameter
Creates a binding between
source_property
onsource
andtarget_property
ontarget
.Whenever the
source_property
is changed thetarget_property
is updated using the same value. For instance:Will result in the "sensitive" property of the widget #GObject instance to be updated with the same value of the "active" property of the action #GObject instance.
If
flags
contains %G_BINDING_BIDIRECTIONAL then the binding will be mutual: iftarget_property
ontarget
changes then thesource_property
onsource
will be updated as well.The binding will automatically be removed when either the
source
or thetarget
instances are finalized. To remove the binding without affecting thesource
and thetarget
you can just call g_object_unref() on the returned #GBinding instance.Removing the binding by calling g_object_unref() on it must only be done if the binding,
source
andtarget
are only used from a single thread and it is clear that bothsource
andtarget
outlive the binding. Especially it is not safe to rely on this if the binding,source
ortarget
can be finalized from different threads. Keep another reference to the binding and use g_binding_unbind() instead to be on the safe side.A #GObject can have multiple bindings.