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GcrCollection

GcrCollection — A collection of objects.

Signals

Types and Values

Object Hierarchy

    GInterface
    ╰── GcrCollection

Prerequisites

GcrCollection requires GObject.

Known Implementations

GcrCollection is implemented by GcrFilterCollection, GcrSimpleCollection and GcrUnionCollection.

Description

A GcrCollection is used to group a set of objects. This is an abstract interface which can be used to determine which objects show up in a selector or other user interface element.

Use gcr_simple_collection_new() to create a concrete implementation of this interface which you can add objects to.

Functions

gcr_collection_get_length ()

guint
gcr_collection_get_length (GcrCollection *self);

Get the number of objects in this collection.

Parameters

self

The collection

 

Returns

The number of objects.


gcr_collection_get_objects ()

GList *
gcr_collection_get_objects (GcrCollection *self);

Get a list of the objects in this collection.

Parameters

self

The collection

 

Returns

a list of the objects in this collection, which should be freed with g_list_free().

[transfer container][element-type GObject.Object]


gcr_collection_contains ()

gboolean
gcr_collection_contains (GcrCollection *self,
                         GObject *object);

Check whether the collection contains an object or not.

Parameters

self

the collection

 

object

object to check

 

Returns

whether the collection contains this object


gcr_collection_emit_added ()

void
gcr_collection_emit_added (GcrCollection *self,
                           GObject *object);

Emit the “added” signal for the given object. This function is used by implementors of this interface.

Parameters

self

The collection

 

object

The object that was added

 

gcr_collection_emit_removed ()

void
gcr_collection_emit_removed (GcrCollection *self,
                             GObject *object);

Emit the “removed” signal for the given object. This function is used by implementors of this interface.

Parameters

self

The collection

 

object

The object that was removed

 

Types and Values

GcrCollection

typedef struct _GcrCollection GcrCollection;

A GcrCollection is used to group a set of objects.

Signal Details

The “added” signal

void
user_function (GcrCollection *self,
               GObject       *object,
               gpointer       user_data)

This signal is emitted when an object is added to the collection.

Parameters

self

the collection

 

object

object that was added.

[type GObject.Object]

user_data

user data set when the signal handler was connected.

 

Flags: Run Last


The “removed” signal

void
user_function (GcrCollection *self,
               GObject       *object,
               gpointer       user_data)

This signal is emitted when an object is removed from the collection.

Parameters

self

the collection

 

object

object that was removed.

[type GObject.Object]

user_data

user data set when the signal handler was connected.

 

Flags: Run Last

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