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GwyContainer (HEAD)

GwyContainer — A container with items identified by a GQuark

Functions

#define	gwy_container_duplicate()
GwyContainer *	gwy_container_new ()
guint	gwy_container_get_n_items ()
GType	gwy_container_value_type ()
gboolean	gwy_container_contains ()
GValue	gwy_container_get_value ()
gboolean	gwy_container_gis_value ()
void	gwy_container_set_value ()
void	gwy_container_set_value_by_name ()
gboolean	gwy_container_remove ()
guint	gwy_container_remove_by_prefix ()
GwyContainer *	gwy_container_duplicate_by_prefix ()
GwyContainer *	gwy_container_duplicate_by_prefixv ()
gint	gwy_container_transfer ()
gboolean	gwy_container_rename ()
guint	gwy_container_foreach ()
GQuark *	gwy_container_keys ()
const gchar **	gwy_container_keys_by_name ()
GQuark *	gwy_container_keys_with_prefix ()
const gchar **	gwy_container_keys_with_prefix_by_name ()
void	gwy_container_set_boolean ()
gboolean	gwy_container_get_boolean ()
gboolean	gwy_container_gis_boolean ()
void	gwy_container_set_uchar ()
guchar	gwy_container_get_uchar ()
gboolean	gwy_container_gis_uchar ()
void	gwy_container_set_int32 ()
gint32	gwy_container_get_int32 ()
gboolean	gwy_container_gis_int32 ()
void	gwy_container_set_enum ()
guint	gwy_container_get_enum ()
gboolean	gwy_container_gis_enum ()
void	gwy_container_set_int64 ()
gint64	gwy_container_get_int64 ()
gboolean	gwy_container_gis_int64 ()
void	gwy_container_set_double ()
gdouble	gwy_container_get_double ()
gboolean	gwy_container_gis_double ()
void	gwy_container_set_string ()
void	gwy_container_set_const_string ()
const guchar *	gwy_container_get_string ()
gboolean	gwy_container_gis_string ()
void	gwy_container_set_object ()
void	gwy_container_pass_object ()
gpointer	gwy_container_get_object ()
gboolean	gwy_container_gis_object ()
GPtrArray *	gwy_container_serialize_to_text ()
GwyContainer *	gwy_container_deserialize_from_text ()
#define	gwy_container_value_type_by_name()
#define	gwy_container_contains_by_name()
#define	gwy_container_get_value_by_name()
#define	gwy_container_gis_value_by_name()
#define	gwy_container_remove_by_name()
#define	gwy_container_rename_by_name()
#define	gwy_container_set_boolean_by_name()
#define	gwy_container_get_boolean_by_name()
#define	gwy_container_gis_boolean_by_name()
#define	gwy_container_set_uchar_by_name()
#define	gwy_container_get_uchar_by_name()
#define	gwy_container_gis_uchar_by_name()
#define	gwy_container_set_int32_by_name()
#define	gwy_container_get_int32_by_name()
#define	gwy_container_gis_int32_by_name()
#define	gwy_container_set_enum_by_name()
#define	gwy_container_get_enum_by_name()
#define	gwy_container_gis_enum_by_name()
#define	gwy_container_set_int64_by_name()
#define	gwy_container_get_int64_by_name()
#define	gwy_container_gis_int64_by_name()
#define	gwy_container_set_double_by_name()
#define	gwy_container_get_double_by_name()
#define	gwy_container_gis_double_by_name()
#define	gwy_container_set_string_by_name()
#define	gwy_container_set_const_string_by_name()
#define	gwy_container_get_string_by_name()
#define	gwy_container_gis_string_by_name()
#define	gwy_container_set_object_by_name()
#define	gwy_container_pass_object_by_name()
#define	gwy_container_get_object_by_name()
#define	gwy_container_gis_object_by_name()

Signals

void

item-changed

Has Details

Types and Values

#define	GWY_CONTAINER_PATHSEP
#define	GWY_CONTAINER_PATHSEP_STR
struct	GwyContainer
struct	GwyContainerClass

Object Hierarchy

    GObject
    ╰── GwyContainer

Implemented Interfaces

GwyContainer implements GwySerializable.

Includes

#include <libgwyddion/gwyddion.h>

Description

GwyContainer is a general-purpose container, it can hold atomic types, strings and objects. However, objects must implement the GwySerializable interface, because the container itself is serializable.

A new container can be created with gwy_container_new(), items can be stored with function like gwy_container_set_double(), read with gwy_container_get_double(), and removed with gwy_container_remove() or gwy_container_remove_by_prefix(). A presence of a value can be tested with gwy_container_contains(), convenience functions for reading (updating) a value only if it is present like gwy_container_gis_double(), are available too.

GwyContainer takes ownership of stored non-atomic items. For strings, this means you cannot store static strings (use g_strdup() to duplicate them), and must not free stored dynamic strings, as the container will free them itself when they are removed or when the container is finalized. For objects, this means it takes a reference on the object (released when the object is removed or the container is finalized), so you usually want to g_object_unref() objects after storing them to a container.

Items in a GwyContainer can be identified by a GQuark or the corresponding string. While GQuark's are atomic values and allow faster acces, they are less convenient for casual usage -- each GQuark key function like gwy_container_set_double() thus has a string-key counterpart gwy_container_set_double_by_name().

Functions

gwy_container_duplicate()

#define gwy_container_duplicate(container) (GWY_CONTAINER(gwy_serializable_duplicate(G_OBJECT(container))))

Convenience macro doing gwy_serializable_duplicate() with all the necessary typecasting.

Parameters

container

A container to duplicate.

gwy_container_new ()

GwyContainer *
gwy_container_new (void);

Creates a new GwyContainer.

Returns

The container, as a GObject.

gwy_container_get_n_items ()

guint
gwy_container_get_n_items (GwyContainer *container);

Gets the number of items in a container.

Parameters

container

A container.

Returns

The number of items.

gwy_container_value_type ()

GType
gwy_container_value_type (GwyContainer *container,
                          GQuark key);

Returns the type of value in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The value type as GType; 0 if there is no such value.

gwy_container_contains ()

gboolean
gwy_container_contains (GwyContainer *container,
                        GQuark key);

Returns TRUE if container contains a value identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

Whether container contains something identified by key .

gwy_container_get_value ()

GValue
gwy_container_get_value (GwyContainer *container,
                         GQuark key);

Returns the value in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The value as a GValue.

gwy_container_gis_value ()

gboolean
gwy_container_gis_value (GwyContainer *container,
                         GQuark key,
                         GValue *value);

Get-if-set a generic value from a container.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to a GValue to update. If item does not exist, it is left untouched.

Returns

TRUE if v was actually updated, FALSE when there is no such value in the container.

gwy_container_set_value ()

void
gwy_container_set_value (GwyContainer *container,
                         ...);

Inserts or updates several values in container .

Parameters

container	A container.
...	A zero-terminated list of GQuark keys and GValue values.

gwy_container_set_value_by_name ()

void
gwy_container_set_value_by_name (GwyContainer *container,
                                 ...);

Inserts or updates several values in container .

Parameters

container	A container.
...	A `NULL`-terminated list of string keys and GValue values.

gwy_container_remove ()

gboolean
gwy_container_remove (GwyContainer *container,
                      GQuark key);

Removes a value identified by key from a container.

Parameters

container	A container.
key	A GQuark key.

Returns

TRUE if there was such a value and was removed.

gwy_container_remove_by_prefix ()

guint
gwy_container_remove_by_prefix (GwyContainer *container,
                                const gchar *prefix);

Removes a values whose key start with prefix from container container .

prefix can be NULL, all values are then removed.

Parameters

container	A container.
prefix	A nul-terminated id prefix.

Returns

The number of values removed.

gwy_container_duplicate_by_prefix ()

GwyContainer *
gwy_container_duplicate_by_prefix (GwyContainer *container,
                                   ...);

Duplicates a container keeping only values under given prefixes.

Like gwy_container_duplicate(), this method creates a deep copy, that is contained object are physically duplicated too, not just referenced again.

Parameters

container	A container.
...	A `NULL`-terminated list of string keys.

Returns

A newly created container.

gwy_container_duplicate_by_prefixv ()

GwyContainer *
gwy_container_duplicate_by_prefixv (GwyContainer *container,
                                    guint n,
                                    const gchar **prefixes);

Duplicates a container keeping only values under given prefixes.

Like gwy_container_duplicate(), this method creates a deep copy, that is contained object are physically duplicated too, not just referenced again.

Parameters

container	A container.
n	Number of prefixes.
prefixes	List of prefixes.

Returns

A newly created container.

Since: 2.48

gwy_container_transfer ()

gint
gwy_container_transfer (GwyContainer *source,
                        GwyContainer *dest,
                        const gchar *source_prefix,
                        const gchar *dest_prefix,
                        gboolean force);

Copies a items from one place in container to another place.

The copies are shallow, objects are not physically duplicated, only referenced in dest .

Parameters

source	Source container.
dest	Destination container. It may be the same container as `source` , but `source_prefix` and `dest_prefix` may not overlap then.
source_prefix	Prefix in `source` to take values from.
dest_prefix	Prefix in `dest` to put values to.
force	`TRUE` to replace existing values in `dest` .

Returns

The number of actually transferred items.

gwy_container_rename ()

gboolean
gwy_container_rename (GwyContainer *container,
                      GQuark key,
                      GQuark newkey,
                      gboolean force);

Makes a value in container identified by key to be identified by newkey .

When force is TRUE existing value at newkey is removed from container . When it's FALSE, an existing value newkey inhibits the rename and FALSE is returned.

Parameters

container	A container.
key	The current key.
newkey	A new key for the value.
force	Whether to replace existing value at `newkey` .

Returns

Whether the rename succeeded.

gwy_container_foreach ()

guint
gwy_container_foreach (GwyContainer *container,
                       const gchar *prefix,
                       GHFunc function,
                       gpointer user_data);

Calls function on each container item whose identifier starts with prefix .

The function is called function (GQuark key, GValue *value, user_data).

Parameters

container	A container.
prefix	A nul-terminated id prefix.
function	The function called on the items.
user_data	The user data passed to `function` .

Returns

The number of items function was called on.

gwy_container_keys ()

GQuark *
gwy_container_keys (GwyContainer *container);

Gets all quark keys of a container.

Parameters

container

A container.

Returns

A newly allocated array with quark keys of all container items, in no particular order. The number of items can be obtained with gwy_container_get_n_items(). If there are no items, NULL is returned.

Since: 2.7

gwy_container_keys_by_name ()

const gchar **
gwy_container_keys_by_name (GwyContainer *container);

Gets all string keys of a container.

Parameters

container

A container.

Returns

A newly allocated array with string keys of all container items, in no particular order. The number of items can be obtained with gwy_container_get_n_items(). If there are no items, NULL is returned. Unlike the array the strings are owned by GLib and must not be freed.

Since: 2.7

gwy_container_keys_with_prefix ()

GQuark *
gwy_container_keys_with_prefix (GwyContainer *container,
                                const gchar *prefix,
                                guint *n);

Gets quark keys of a container that start with given prefix.

Parameters

container	A container.
prefix	A nul-terminated id prefix.
n	Location to store the number of keys to. Can be `NULL`.

Returns

A newly allocated array with quark keys, in no particular order. The array is zero-terminated.

Since: 2.50

gwy_container_keys_with_prefix_by_name ()

const gchar **
gwy_container_keys_with_prefix_by_name
                               (GwyContainer *container,
                                const gchar *prefix,
                                guint *n);

Gets string keys of a container that start with given prefix.

Parameters

container	A container.
prefix	A nul-terminated id prefix.
n	Location to store the number of keys to. Can be `NULL`.

Returns

A newly allocated array with string keys, in no particular order. Unlike the array the strings are owned by GLib and must not be freed. The array is NULL-terminated.

Since: 2.50

gwy_container_set_boolean ()

void
gwy_container_set_boolean (GwyContainer *container,
                           GQuark key,
                           gboolean value);

Stores a boolean into container , identified by key .

Parameters

container	A container.
key	A GQuark key.
value	A boolean.

gwy_container_get_boolean ()

gboolean
gwy_container_get_boolean (GwyContainer *container,
                           GQuark key);

Returns the boolean in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The boolean as gboolean.

gwy_container_gis_boolean ()

gboolean
gwy_container_gis_boolean (GwyContainer *container,
                           GQuark key,
                           gboolean *value);

Get-if-set a boolean from a container.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the boolean to update.

Returns

TRUE if v was actually updated, FALSE when there is no such boolean in the container.

gwy_container_set_uchar ()

void
gwy_container_set_uchar (GwyContainer *container,
                         GQuark key,
                         guchar value);

Stores an unsigned character into container , identified by key .

Parameters

container	A container.
key	A GQuark key.
value	An unsigned character.

gwy_container_get_uchar ()

guchar
gwy_container_get_uchar (GwyContainer *container,
                         GQuark key);

Returns the unsigned character in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The character as guchar.

gwy_container_gis_uchar ()

gboolean
gwy_container_gis_uchar (GwyContainer *container,
                         GQuark key,
                         guchar *value);

Get-if-set an unsigned char from a container.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the unsigned char to update.

Returns

TRUE if v was actually updated, FALSE when there is no such unsigned char in the container.

gwy_container_set_int32 ()

void
gwy_container_set_int32 (GwyContainer *container,
                         GQuark key,
                         gint32 value);

Stores a 32bit integer into container , identified by key .

Parameters

container	A container.
key	A GQuark key.
value	A 32bit integer.

gwy_container_get_int32 ()

gint32
gwy_container_get_int32 (GwyContainer *container,
                         GQuark key);

Returns the 32bit integer in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The integer as guint32.

gwy_container_gis_int32 ()

gboolean
gwy_container_gis_int32 (GwyContainer *container,
                         GQuark key,
                         gint32 *value);

Get-if-set a 32bit integer from a container.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the 32bit integer to update.

Returns

TRUE if v was actually updated, FALSE when there is no such 32bit integer in the container.

gwy_container_set_enum ()

void
gwy_container_set_enum (GwyContainer *container,
                        GQuark key,
                        guint value);

Stores an enum into container , identified by key .

Note enums are treated as 32bit integers.

Parameters

container	A container.
key	A GQuark key.
value	An enum integer.

gwy_container_get_enum ()

guint
gwy_container_get_enum (GwyContainer *container,
                        GQuark key);

Returns the enum in container identified by key .

Note enums are treated as 32bit integers.

Parameters

container	A container.
key	A GQuark key.

Returns

The enum as gint.

gwy_container_gis_enum ()

gboolean
gwy_container_gis_enum (GwyContainer *container,
                        GQuark key,
                        guint *value);

Get-if-set an enum from a container.

Note enums are treated as 32bit integers.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the enum to update.

Returns

TRUE if v was actually updated, FALSE when there is no such enum in the container.

gwy_container_set_int64 ()

void
gwy_container_set_int64 (GwyContainer *container,
                         GQuark key,
                         gint64 value);

Stores a 64bit integer into container , identified by key .

Parameters

container	A container.
key	A GQuark key.
value	A 64bit integer.

gwy_container_get_int64 ()

gint64
gwy_container_get_int64 (GwyContainer *container,
                         GQuark key);

Returns the 64bit integer in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The 64bit integer as guint64.

gwy_container_gis_int64 ()

gboolean
gwy_container_gis_int64 (GwyContainer *container,
                         GQuark key,
                         gint64 *value);

Get-if-set a 64bit integer from a container.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the 64bit integer to update.

Returns

TRUE if v was actually updated, FALSE when there is no such 64bit integer in the container.

gwy_container_set_double ()

void
gwy_container_set_double (GwyContainer *container,
                          GQuark key,
                          gdouble value);

Stores a double into container , identified by key .

Parameters

container	A container.
key	A GQuark key.
value	A double.

gwy_container_get_double ()

gdouble
gwy_container_get_double (GwyContainer *container,
                          GQuark key);

Returns the double in container identified by key .

Parameters

container	A container.
key	A GQuark key.

Returns

The double as gdouble.

gwy_container_gis_double ()

gboolean
gwy_container_gis_double (GwyContainer *container,
                          GQuark key,
                          gdouble *value);

Get-if-set a double from a container.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the double to update.

Returns

TRUE if v was actually updated, FALSE when there is no such double in the container.

gwy_container_set_string ()

void
gwy_container_set_string (GwyContainer *container,
                          GQuark key,
                          const guchar *value);

Stores a string into container , identified by key .

The container takes ownership of the string, so it can't be used on static strings, use g_strdup() to duplicate them first.

Parameters

container	A container.
key	A GQuark key.
value	A nul-terminated string.

gwy_container_set_const_string ()

void
gwy_container_set_const_string (GwyContainer *container,
                                GQuark key,
                                const guchar *value);

Stores a string into container , identified by key .

The container makes a copy of the string, so it can be used on static strings.

Parameters

container	A container.
key	A GQuark key.
value	A nul-terminated string.

Since: 2.38

gwy_container_get_string ()

const guchar *
gwy_container_get_string (GwyContainer *container,
                          GQuark key);

Returns the string in container identified by key .

The returned string must be treated as constant and never freed or modified.

Parameters

container	A container.
key	A GQuark key.

Returns

The string.

gwy_container_gis_string ()

gboolean
gwy_container_gis_string (GwyContainer *container,
                          GQuark key,
                          const guchar **value);

Get-if-set a string from a container.

The string eventually stored in value must be treated as constant and never freed or modified.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the string pointer to update.

Returns

TRUE if v was actually updated, FALSE when there is no such string in the container.

gwy_container_set_object ()

void
gwy_container_set_object (GwyContainer *container,
                          GQuark key,
                          gpointer value);

Stores an object into container , identified by key .

The container claims ownership on the object, i.e. its reference count is incremented. Use gwy_container_pass_object() to pass your reference to container .

The object must implement GwySerializable interface to allow serialization of the container.

Parameters

container	A container.
key	A GQuark key.
value	An object to store into container.

gwy_container_pass_object ()

void
gwy_container_pass_object (GwyContainer *container,
                           GQuark key,
                           gpointer value);

Stores an object into container , identified by key , passing reference to the container.

The reference on the object you hold is passed to container . This is often useful when importing data as you do not have to (in fact must not) release your reference afterwards. Use gwy_container_set_object() if you want to keep your reference.

The object must implement GwySerializable interface to allow serialization of the container.

Parameters

container	A container.
key	A GQuark key.
value	An object to store into container.

Since: 2.64

gwy_container_get_object ()

gpointer
gwy_container_get_object (GwyContainer *container,
                          GQuark key);

Returns the object in container identified by key .

The returned object doesn't have its reference count increased, use g_object_ref() if you want to access it even when container may cease to exist.

Parameters

container	A container.
key	A GQuark key.

Returns

The object as gpointer.

gwy_container_gis_object ()

gboolean
gwy_container_gis_object (GwyContainer *container,
                          GQuark key,
                          gpointer value);

Get-if-set an object from a container.

The object eventually stored in value doesn't have its reference count increased, use g_object_ref() if you want to access it even when container may cease to exist.

Parameters

container	A container.
key	A GQuark key.
value	Pointer to the object pointer to update.

Returns

TRUE if v was actually updated, FALSE when there is no such object in the container.

gwy_container_serialize_to_text ()

GPtrArray *
gwy_container_serialize_to_text (GwyContainer *container);

Creates a text representation of container contents.

Note only simple data types are supported as serialization of compound objects is not controllable.

Parameters

container

A container.

Returns

A pointer array, each item containing string with one container item representation (name, type, value). The array is sorted by name.

gwy_container_deserialize_from_text ()

GwyContainer *
gwy_container_deserialize_from_text (const gchar *text);

Restores a container from is text representation.

Parameters

text

Text containing serialized container contents as dumped by gwy_container_serialize_to_text().

Returns

The restored container, or NULL on failure.

gwy_container_value_type_by_name()

#define gwy_container_value_type_by_name(c,n)         gwy_container_value_type(c,g_quark_try_string(n))

Gets the type of value in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_contains_by_name()

#define gwy_container_contains_by_name(c,n)           gwy_container_contains(c,g_quark_try_string(n))

Expands to TRUE if container c contains a value identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_get_value_by_name()

#define gwy_container_get_value_by_name(c,n)          gwy_container_get_value(c,g_quark_from_string(n))

Gets the value in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_value_by_name()

#define gwy_container_gis_value_by_name(c,n,v)        gwy_container_gis_value(c,g_quark_try_string(n),v)

Get-if-set a generic value from a container.

Expands to TRUE if value was actually updated, FALSE when there is no such value in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to a GValue to update. If item does not exist, it is left untouched.

gwy_container_remove_by_name()

#define gwy_container_remove_by_name(c,n)             gwy_container_remove(c,g_quark_try_string(n))

Removes a value identified by name n from container c .

Expands to TRUE if there was such a value and was removed.

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_rename_by_name()

#define gwy_container_rename_by_name(c,n,nn,f)        gwy_container_rename(c,g_quark_try_string(n),g_quark_from_string(nn),f)

Makes a value in container c identified by name n to be identified by new name nn .

See gwy_container_rename() for details.

Parameters

c	A container.
n	A nul-terminated name (id).
nn	A nul-terminated name (id).
f	Whether to delete existing value at `newkey` .

gwy_container_set_boolean_by_name()

#define gwy_container_set_boolean_by_name(c,n,v)      gwy_container_set_boolean(c,g_quark_from_string(n),v)

Stores a boolean into container c , identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).
v	A boolean.

gwy_container_get_boolean_by_name()

#define gwy_container_get_boolean_by_name(c,n)        gwy_container_get_boolean(c,g_quark_from_string(n))

Gets the boolean in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_boolean_by_name()

#define gwy_container_gis_boolean_by_name(c,n,v)      gwy_container_gis_boolean(c,g_quark_try_string(n),v)

Get-if-set a boolean from a container.

Expands to TRUE if value was actually updated, FALSE when there is no such boolean in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the boolean to update.

gwy_container_set_uchar_by_name()

#define gwy_container_set_uchar_by_name(c,n,v)        gwy_container_set_uchar(c,g_quark_from_string(n),v)

Stores an unsigned character into container c , identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).
v	An unsigned character.

gwy_container_get_uchar_by_name()

#define gwy_container_get_uchar_by_name(c,n)          gwy_container_get_uchar(c,g_quark_from_string(n))

Gets the unsigned character in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_uchar_by_name()

#define gwy_container_gis_uchar_by_name(c,n,v)        gwy_container_gis_uchar(c,g_quark_try_string(n),v)

Get-if-set an unsigned char from a container.

Expands to TRUE if value was actually updated, FALSE when there is no such unsigned char in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the unsigned char to update.

gwy_container_set_int32_by_name()

#define gwy_container_set_int32_by_name(c,n,v)        gwy_container_set_int32(c,g_quark_from_string(n),v)

Stores a 32bit integer into container c , identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).
v	A 32bit integer.

gwy_container_get_int32_by_name()

#define gwy_container_get_int32_by_name(c,n)          gwy_container_get_int32(c,g_quark_from_string(n))

Gets the 32bit integer in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_int32_by_name()

#define gwy_container_gis_int32_by_name(c,n,v)        gwy_container_gis_int32(c,g_quark_try_string(n),v)

Get-if-set a 32bit integer from a container.

Expands to TRUE if value was actually updated, FALSE when there is no such 32bit integer in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the 32bit integer to update.

gwy_container_set_enum_by_name()

#define gwy_container_set_enum_by_name(c,n,v)         gwy_container_set_enum(c,g_quark_from_string(n),v)

Stores an enum into container c , identified by name n .

Note enums are treated as 32bit integers.

Parameters

c	A container.
n	A nul-terminated name (id).
v	An enum.

gwy_container_get_enum_by_name()

#define gwy_container_get_enum_by_name(c,n)           gwy_container_get_enum(c,g_quark_from_string(n))

Gets the enum in container c identified by name n .

Note enums are treated as 32bit integers.

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_enum_by_name()

#define gwy_container_gis_enum_by_name(c,n,v)         gwy_container_gis_enum(c,g_quark_try_string(n),v)

Get-if-set an enum from a container.

Note enums are treated as 32bit integers.

Expands to TRUE if value was actually updated, FALSE when there is no such enum in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the enum to update.

gwy_container_set_int64_by_name()

#define gwy_container_set_int64_by_name(c,n,v)        gwy_container_set_int64(c,g_quark_from_string(n),v)

Stores a 64bit integer into container c , identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).
v	A 64bit integer.

gwy_container_get_int64_by_name()

#define gwy_container_get_int64_by_name(c,n)          gwy_container_get_int64(c,g_quark_from_string(n))

Gets the 64bit integer in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_int64_by_name()

#define gwy_container_gis_int64_by_name(c,n,v)        gwy_container_gis_int64(c,g_quark_try_string(n),v)

Get-if-set a 64bit integer from a container.

Expands to TRUE if value was actually updated, FALSE when there is no such 64bit integer in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the 64bit integer to update.

gwy_container_set_double_by_name()

#define gwy_container_set_double_by_name(c,n,v)       gwy_container_set_double(c,g_quark_from_string(n),v)

Stores a double into container c , identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).
v	A double integer.

gwy_container_get_double_by_name()

#define gwy_container_get_double_by_name(c,n)         gwy_container_get_double(c,g_quark_from_string(n))

Gets the double in container c identified by name n .

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_double_by_name()

#define gwy_container_gis_double_by_name(c,n,v)       gwy_container_gis_double(c,g_quark_try_string(n),v)

Get-if-set a double from a container.

Expands to TRUE if value was actually updated, FALSE when there is no such double in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the double to update.

gwy_container_set_string_by_name()

#define gwy_container_set_string_by_name(c,n,v)       gwy_container_set_string(c,g_quark_from_string(n),v)

Stores a string into container c , identified by name n .

The container takes ownership of the string, so it can't be used on static strings, use g_strdup() to duplicate them first.

Parameters

c	A container.
n	A nul-terminated name (id).
v	A nul-terminated string.

gwy_container_set_const_string_by_name()

#define gwy_container_set_const_string_by_name(c,n,v) gwy_container_set_const_string(c,g_quark_from_string(n),v)

Stores a string into container c , identified by name n .

The container makes a copy of the string, so it can be used on static strings.

Parameters

c	A container.
n	A nul-terminated name (id).
v	A nul-terminated string.

Since: 2.38

gwy_container_get_string_by_name()

#define gwy_container_get_string_by_name(c,n)         gwy_container_get_string(c,g_quark_from_string(n))

Gets the string in container c identified by name n .

The returned string must be treated as constant and never freed or modified.

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_string_by_name()

#define gwy_container_gis_string_by_name(c,n,v)       gwy_container_gis_string(c,g_quark_try_string(n),v)

Get-if-set a string from a container.

The string eventually stored in v must be treated as constant and never freed or modified.

Expands to TRUE if value was actually updated, FALSE when there is no such string in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the string pointer to update.

gwy_container_set_object_by_name()

#define gwy_container_set_object_by_name(c,n,v)       gwy_container_set_object(c,g_quark_from_string(n),v)

Stores an object into container c , identified by name n .

See gwy_container_set_object() for details.

Parameters

c	A container.
n	A nul-terminated name (id).
v	An object to store into container.

gwy_container_pass_object_by_name()

#define gwy_container_pass_object_by_name(c,n,v)      gwy_container_pass_object(c,g_quark_from_string(n),v)

Stores an object into container c , identified by name n , passing reference to the container.

See gwy_container_pass_object() for details.

Parameters

c	A container.
n	A nul-terminated name (id).
v	An object to store into container.

Since: 2.64

gwy_container_get_object_by_name()

#define gwy_container_get_object_by_name(c,n)         gwy_container_get_object(c,g_quark_from_string(n))

Gets the object in container c identified by name n .

The returned object doesn't have its reference count increased, use g_object_ref() if you want to access it even when container may cease to exist.

Parameters

c	A container.
n	A nul-terminated name (id).

gwy_container_gis_object_by_name()

#define gwy_container_gis_object_by_name(c,n,v)       gwy_container_gis_object(c,g_quark_try_string(n),v)

Get-if-set an object from a container.

The object eventually stored in value doesn't have its reference count increased, use g_object_ref() if you want to access it even when container may cease to exist.

Expands to TRUE if value was actually updated, FALSE when there is no such object in the container.

Parameters

c	A container.
n	A nul-terminated name (id).
v	Pointer to the object pointer to update.

Types and Values

GWY_CONTAINER_PATHSEP

#define GWY_CONTAINER_PATHSEP      '/'

Path separator to be used for hierarchical structures in the container.

GWY_CONTAINER_PATHSEP_STR

#define GWY_CONTAINER_PATHSEP_STR  "/"

Path separator to be used for hierarchical structures in the container, as a string.

struct GwyContainer

struct GwyContainer;

The GwyContainer struct contains private data only and should be accessed using the functions below.

struct GwyContainerClass

struct GwyContainerClass {
    GObjectClass parent_class;

    void (*item_changed)(GwyContainer *container, const gchar *key);
};

Signal Details

The `“item-changed”` signal

void
user_function (GwyContainer *gwycontainer,
               guint         arg1,
               gpointer      user_data)

The ::item-changed signal is emitted whenever a container item is changed. The detail is the string key identifier.

Parameters

gwycontainer	The GwyContainer which received the signal.
arg1	The quark key identifying the changed item.
user_data	user data set when the signal handler was connected.

Flags: Has Details