Migrating docs.

* docs/reference/gobject/tmpl/enumerations_flags.sgml:
	* gobject/genums.c:
	* gobject/genums.h:
	  Migrating docs.


svn path=/trunk/; revision=7066
This commit is contained in:
Stefan Kost 2008-06-21 11:27:45 +00:00
parent 86a0f779f6
commit 672caa1a51
4 changed files with 263 additions and 303 deletions

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@ -1,3 +1,10 @@
2008-06-21 Stefan Kost <ensonic@users.sf.net>
* docs/reference/gobject/tmpl/enumerations_flags.sgml:
* gobject/genums.c:
* gobject/genums.h:
Migrating docs.
2008-06-21 Stefan Kost <ensonic@users.sf.net>
* docs/reference/gobject/tmpl/gboxed.sgml:

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@ -1,303 +0,0 @@
<!-- ##### SECTION Title ##### -->
Enums and Flags
<!-- ##### SECTION Short_Description ##### -->
Enumeration and flags types
<!-- ##### SECTION Long_Description ##### -->
<para>
The GLib type system provides fundamental types for enumeration and flags types. (Flags types
are like enumerations, but allow their values to be combined by bitwise or). A registered
enumeration or flags type associates a name and a nickname with each allowed value, and
the methods g_enum_get_value_by_name(), g_enum_get_value_by_nick(), g_flags_get_value_by_name()
and g_flags_get_value_by_nick() can look up values by their name or nickname.
When an enumeration or flags type is registered with the GLib type system, it can
be used as value type for object properties, using g_param_spec_enum() or
g_param_spec_flags().
</para>
<para>
GObject ships with a utility called <link linkend="glib-mkenums">glib-mkenums</link> that can
construct suitable type registration functions from C enumeration definitions.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
#GParamSpecEnum, #GParamSpecFlags, g_param_spec_enum(), g_param_spec_flags(),
<link linkend="glib-mkenums">glib-mkenums</link>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### STRUCT GEnumClass ##### -->
<para>
The class of an enumeration type holds information about its
possible values.
</para>
@g_type_class: the parent class
@minimum: the smallest possible value.
@maximum: the largest possible value.
@n_values: the number of possible values.
@values: an array of #GEnumValue structs describing the
individual values.
<!-- ##### STRUCT GFlagsClass ##### -->
<para>
The class of a flags type holds information about its
possible values.
</para>
@g_type_class: the parent class
@mask: a mask covering all possible values.
@n_values: the number of possible values.
@values: an array of #GFlagsValue structs describing the
individual values.
<!-- ##### MACRO G_ENUM_CLASS_TYPE ##### -->
<para>
Returns the type identifier from a given #GEnumClass structure.
</para>
@class: a #GEnumClass
<!-- ##### MACRO G_ENUM_CLASS_TYPE_NAME ##### -->
<para>
Returns the static type name from a given #GEnumClass structure.
</para>
@class: a #GEnumClass
<!-- ##### MACRO G_TYPE_IS_ENUM ##### -->
<para>
Returns whether @type "is a" %G_TYPE_ENUM.
</para>
@type: a #GType ID.
<!-- ##### MACRO G_ENUM_CLASS ##### -->
<para>
Casts a derived #GEnumClass structure into a #GEnumClass structure.
</para>
@class: a valid #GEnumClass
<!-- ##### MACRO G_IS_ENUM_CLASS ##### -->
<para>
Checks whether @class "is a" valid #GEnumClass structure of type %G_TYPE_ENUM
or derived.
</para>
@class: a #GEnumClass
<!-- ##### MACRO G_TYPE_IS_FLAGS ##### -->
<para>
Returns whether @type "is a" %G_TYPE_FLAGS.
</para>
@type: a #GType ID.
<!-- ##### MACRO G_FLAGS_CLASS ##### -->
<para>
Casts a derived #GFlagsClass structure into a #GFlagsClass structure.
</para>
@class: a valid #GFlagsClass
<!-- ##### MACRO G_IS_FLAGS_CLASS ##### -->
<para>
Checks whether @class "is a" valid #GFlagsClass structure of type %G_TYPE_FLAGS
or derived.
</para>
@class: a #GFlagsClass
<!-- ##### MACRO G_FLAGS_CLASS_TYPE ##### -->
<para>
Returns the type identifier from a given #GFlagsClass structure.
</para>
@class: a #GFlagsClass
<!-- ##### MACRO G_FLAGS_CLASS_TYPE_NAME ##### -->
<para>
Returns the static type name from a given #GFlagsClass structure.
</para>
@class: a #GFlagsClass
<!-- ##### STRUCT GEnumValue ##### -->
<para>
A structure which contains a single enum value, it's name, and it's
nickname.
</para>
@value: the enum value
@value_name: the name of the value
@value_nick: the nickname of the value
<!-- ##### STRUCT GFlagsValue ##### -->
<para>
A structure which contains a single flags value, it's name, and it's
nickname.
</para>
@value: the flags value
@value_name: the name of the value
@value_nick: the nickname of the value
<!-- ##### FUNCTION g_enum_get_value ##### -->
<para>
Returns the #GEnumValue for a value.
</para>
@enum_class: a #GEnumClass
@value: the value to look up
@Returns: the #GEnumValue for @value, or %NULL if @value is not
a member of the enumeration
<!-- ##### FUNCTION g_enum_get_value_by_name ##### -->
<para>
Looks up a #GEnumValue by name.
</para>
@enum_class: a #GEnumClass
@name: the name to look up
@Returns: the #GEnumValue with name @name, or %NULL if the enumeration doesn'
t have a member with that name
<!-- ##### FUNCTION g_enum_get_value_by_nick ##### -->
<para>
Looks up a #GEnumValue by nickname.
</para>
@enum_class: a #GEnumClass
@nick: the nickname to look up
@Returns: the #GEnumValue with nickname @nick, or %NULL if the enumeration doesn'
t have a member with that nickname
<!-- ##### FUNCTION g_flags_get_first_value ##### -->
<para>
Returns the first #GFlagsValue which is set in @value.
</para>
@flags_class: a #GFlagsClass
@value: the value
@Returns: the first #GFlagsValue which is set in @value, or %NULL if none is set
<!-- ##### FUNCTION g_flags_get_value_by_name ##### -->
<para>
Looks up a #GFlagsValue by name.
</para>
@flags_class: a #GFlagsClass
@name: the name to look up
@Returns: the #GFlagsValue with name @name, or %NULL if there is no flag with
that name
<!-- ##### FUNCTION g_flags_get_value_by_nick ##### -->
<para>
Looks up a #GFlagsValue by nickname.
</para>
@flags_class: a #GFlagsClass
@nick: the nickname to look up
@Returns: the #GFlagsValue with nickname @nick, or %NULL if there is no flag
with that nickname
<!-- ##### FUNCTION g_enum_register_static ##### -->
<para>
Registers a new static enumeration type with the name @name.
</para>
<para>
It is normally more convenient to let <link linkend="glib-mkenums">glib-mkenums</link>
generate a my_enum_get_type() function from a usual C enumeration definition
than to write one yourself using g_enum_register_static().
</para>
@name: A nul-terminated string used as the name of the new type.
@const_static_values: An array of #GEnumValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0. GObject keeps a reference to the data, so it cannot
be stack-allocated.
@Returns: The new type identifier.
<!-- ##### FUNCTION g_flags_register_static ##### -->
<para>
Registers a new static flags type with the name @name.
</para>
<para>
It is normally more convenient to let <link linkend="glib-mkenums">glib-mkenums</link>
generate a my_flags_get_type() function from a usual C enumeration definition
than to write one yourself using g_flags_register_static().
</para>
@name: A nul-terminated string used as the name of the new type.
@const_static_values: An array of #GFlagsValue structs for the possible
flags values. The array is terminated by a struct with all members being 0.
GObject keeps a reference to the data, so it cannot be stack-allocated.
@Returns: The new type identifier.
<!-- ##### FUNCTION g_enum_complete_type_info ##### -->
<para>
This function is meant to be called from the complete_type_info() function
of a #GTypePlugin implementation, as in the following example:
<informalexample>
<programlisting>
static void
my_enum_complete_type_info (GTypePlugin *plugin,
GType g_type,
GTypeInfo *info,
GTypeValueTable *value_table)
{
static const GEnumValue values[] = {
{ MY_ENUM_FOO, "MY_ENUM_FOO", "foo" },
{ MY_ENUM_BAR, "MY_ENUM_BAR", "bar" },
{ 0, NULL, NULL }
};
g_enum_complete_type_info (type, info, values);
}
</programlisting>
</informalexample>
</para>
@g_enum_type: the type identifier of the type being completed
@info: the #GTypeInfo struct to be filled in
@const_values: An array of #GEnumValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0.
<!-- ##### FUNCTION g_flags_complete_type_info ##### -->
<para>
This function is meant to be called from the complete_type_info() function
of a #GTypePlugin implementation, see the example for
g_enumeration_complete_type_info() above.
</para>
@g_flags_type: the type identifier of the type being completed
@info: the #GTypeInfo struct to be filled in
@const_values: An array of #GFlagsValue structs for the possible
enumeration values. The array is terminated by a struct with all
members being 0.

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@ -16,6 +16,24 @@
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:Enums and Flags
* @Short_description: Enumeration and flags types
* @See_also:#GParamSpecEnum, #GParamSpecFlags, g_param_spec_enum(), g_param_spec_flags(),
* <link linkend="glib-mkenums">glib-mkenums</link>
*
* The GLib type system provides fundamental types for enumeration and flags types. (Flags types
* are like enumerations, but allow their values to be combined by bitwise or). A registered
* enumeration or flags type associates a name and a nickname with each allowed value, and
* the methods g_enum_get_value_by_name(), g_enum_get_value_by_nick(), g_flags_get_value_by_name()
* and g_flags_get_value_by_nick() can look up values by their name or nickname.
* When an enumeration or flags type is registered with the GLib type system, it can
* be used as value type for object properties, using g_param_spec_enum() or
* g_param_spec_flags().
*
* GObject ships with a utility called <link linkend="glib-mkenums">glib-mkenums</link> that can
* construct suitable type registration functions from C enumeration definitions.
*/
/*
* MT safe
@ -138,6 +156,22 @@ value_flags_enum_lcopy_value (const GValue *value,
return NULL;
}
/**
* g_enum_register_static:
* @name: A nul-terminated string used as the name of the new type.
* @const_static_values: An array of #GEnumValue structs for the possible
* enumeration values. The array is terminated by a struct with all
* members being 0. GObject keeps a reference to the data, so it cannot
* be stack-allocated.
*
* Registers a new static enumeration type with the name @name.
*
* It is normally more convenient to let <link linkend="glib-mkenums">glib-mkenums</link>
* generate a my_enum_get_type() function from a usual C enumeration definition
* than to write one yourself using g_enum_register_static().
*
* Returns: The new type identifier.
*/
GType
g_enum_register_static (const gchar *name,
const GEnumValue *const_static_values)
@ -166,6 +200,21 @@ g_enum_register_static (const gchar *name,
return type;
}
/**
* g_flags_register_static:
* @name: A nul-terminated string used as the name of the new type.
* @const_static_values: An array of #GFlagsValue structs for the possible
* flags values. The array is terminated by a struct with all members being 0.
* GObject keeps a reference to the data, so it cannot be stack-allocated.
*
* Registers a new static flags type with the name @name.
*
* It is normally more convenient to let <link linkend="glib-mkenums">glib-mkenums</link>
* generate a my_flags_get_type() function from a usual C enumeration definition
* than to write one yourself using g_flags_register_static().
*
* Returns: The new type identifier.
*/
GType
g_flags_register_static (const gchar *name,
const GFlagsValue *const_static_values)
@ -194,6 +243,34 @@ g_flags_register_static (const gchar *name,
return type;
}
/**
* g_enum_complete_type_info:
* @g_enum_type: the type identifier of the type being completed
* @info: the #GTypeInfo struct to be filled in
* @const_values: An array of #GEnumValue structs for the possible
* enumeration values. The array is terminated by a struct with all
* members being 0.
*
* This function is meant to be called from the complete_type_info() function
* of a #GTypePlugin implementation, as in the following example:
*
* |[
* static void
* my_enum_complete_type_info (GTypePlugin *plugin,
* GType g_type,
* GTypeInfo *info,
* GTypeValueTable *value_table)
* {
* static const GEnumValue values[] = {
* { MY_ENUM_FOO, "MY_ENUM_FOO", "foo" },
* { MY_ENUM_BAR, "MY_ENUM_BAR", "bar" },
* { 0, NULL, NULL }
* };
*
* g_enum_complete_type_info (type, info, values);
* }
* ]|
*/
void
g_enum_complete_type_info (GType g_enum_type,
GTypeInfo *info,
@ -211,6 +288,18 @@ g_enum_complete_type_info (GType g_enum_type,
info->class_data = const_values;
}
/**
* g_flags_complete_type_info:
* @g_flags_type: the type identifier of the type being completed
* @info: the #GTypeInfo struct to be filled in
* @const_values: An array of #GFlagsValue structs for the possible
* enumeration values. The array is terminated by a struct with all
* members being 0.
*
* This function is meant to be called from the complete_type_info() function
* of a #GTypePlugin implementation, see the example for
* g_enum_complete_type_info() above.
*/
void
g_flags_complete_type_info (GType g_flags_type,
GTypeInfo *info,
@ -276,6 +365,16 @@ g_flags_class_init (GFlagsClass *class,
}
}
/**
* g_enum_get_value_by_name:
* @enum_class: a #GEnumClass
* @name: the name to look up
*
* Looks up a #GEnumValue by name.
*
* Returns: the #GEnumValue with name @name, or %NULL if the enumeration doesn'
* t have a member with that name
*/
GEnumValue*
g_enum_get_value_by_name (GEnumClass *enum_class,
const gchar *name)
@ -295,6 +394,16 @@ g_enum_get_value_by_name (GEnumClass *enum_class,
return NULL;
}
/**
* g_flags_get_value_by_name:
* @flags_class: a #GFlagsClass
* @name: the name to look up
*
* Looks up a #GFlagsValue by name.
*
* Returns: the #GFlagsValue with name @name, or %NULL if there is no flag with
* that name
*/
GFlagsValue*
g_flags_get_value_by_name (GFlagsClass *flags_class,
const gchar *name)
@ -314,6 +423,16 @@ g_flags_get_value_by_name (GFlagsClass *flags_class,
return NULL;
}
/**
* g_enum_get_value_by_nick:
* @enum_class: a #GEnumClass
* @nick: the nickname to look up
*
* Looks up a #GEnumValue by nickname.
*
* Returns: the #GEnumValue with nickname @nick, or %NULL if the enumeration doesn'
* t have a member with that nickname
*/
GEnumValue*
g_enum_get_value_by_nick (GEnumClass *enum_class,
const gchar *nick)
@ -333,6 +452,16 @@ g_enum_get_value_by_nick (GEnumClass *enum_class,
return NULL;
}
/**
* g_flags_get_value_by_nick:
* @flags_class: a #GFlagsClass
* @nick: the nickname to look up
*
* Looks up a #GFlagsValue by nickname.
*
* Returns: the #GFlagsValue with nickname @nick, or %NULL if there is no flag
* with that nickname
*/
GFlagsValue*
g_flags_get_value_by_nick (GFlagsClass *flags_class,
const gchar *nick)
@ -352,6 +481,16 @@ g_flags_get_value_by_nick (GFlagsClass *flags_class,
return NULL;
}
/**
* g_enum_get_value:
* @enum_class: a #GEnumClass
* @value: the value to look up
*
* Returns the #GEnumValue for a value.
*
* Returns: the #GEnumValue for @value, or %NULL if @value is not
* a member of the enumeration
*/
GEnumValue*
g_enum_get_value (GEnumClass *enum_class,
gint value)
@ -370,6 +509,15 @@ g_enum_get_value (GEnumClass *enum_class,
return NULL;
}
/**
* g_flags_get_first_value:
* @flags_class: a #GFlagsClass
* @value: the value
*
* Returns the first #GFlagsValue which is set in @value.
*
* Returns: the first #GFlagsValue which is set in @value, or %NULL if none is set
*/
GFlagsValue*
g_flags_get_first_value (GFlagsClass *flags_class,
guint value)

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@ -28,16 +28,82 @@
G_BEGIN_DECLS
/* --- type macros --- */
/**
* G_TYPE_IS_ENUM:
* @type: a #GType ID.
*
* Returns: whether @type "is a" %G_TYPE_ENUM.
*/
#define G_TYPE_IS_ENUM(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_ENUM)
/**
* G_ENUM_CLASS:
* @class: a valid #GEnumClass
*
* Casts a derived #GEnumClass structure into a #GEnumClass structure.
*/
#define G_ENUM_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_ENUM, GEnumClass))
/**
* G_IS_ENUM_CLASS:
* @class: a #GEnumClass
*
* Checks whether @class "is a" valid #GEnumClass structure of type %G_TYPE_ENUM
* or derived.
*/
#define G_IS_ENUM_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_ENUM))
/**
* G_ENUM_CLASS_TYPE:
* @class: a #GEnumClass
*
* Returns: the type identifier from a given #GEnumClass structure.
*/
#define G_ENUM_CLASS_TYPE(class) (G_TYPE_FROM_CLASS (class))
/**
* G_ENUM_CLASS_TYPE_NAME:
* @class: a #GEnumClass
*
* Returns: the static type name from a given #GEnumClass structure.
*/
#define G_ENUM_CLASS_TYPE_NAME(class) (g_type_name (G_ENUM_CLASS_TYPE (class)))
/**
* G_TYPE_IS_FLAGS:
* @type: a #GType ID.
*
* Returns: whether @type "is a" %G_TYPE_FLAGS.
*/
#define G_TYPE_IS_FLAGS(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_FLAGS)
/**
* G_FLAGS_CLASS:
* @class: a valid #GFlagsClass
*
* Casts a derived #GFlagsClass structure into a #GFlagsClass structure.
*/
#define G_FLAGS_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), G_TYPE_FLAGS, GFlagsClass))
/**
* G_IS_FLAGS_CLASS:
* @class: a #GFlagsClass
*
* Checks whether @class "is a" valid #GFlagsClass structure of type %G_TYPE_FLAGS
* or derived.
*/
#define G_IS_FLAGS_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), G_TYPE_FLAGS))
/**
* G_FLAGS_CLASS_TYPE:
* @class: a #GFlagsClass
*
* Returns: the type identifier from a given #GFlagsClass structure.
*/
#define G_FLAGS_CLASS_TYPE(class) (G_TYPE_FROM_CLASS (class))
/**
* G_FLAGS_CLASS_TYPE_NAME:
* @class: a #GFlagsClass
*
* Returns: the static type name from a given #GFlagsClass structure.
*/
#define G_FLAGS_CLASS_TYPE_NAME(class) (g_type_name (G_FLAGS_CLASS_TYPE (class)))
#define G_VALUE_HOLDS_ENUM(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_ENUM))
#define G_VALUE_HOLDS_FLAGS(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_FLAGS))
@ -47,6 +113,19 @@ typedef struct _GEnumClass GEnumClass;
typedef struct _GFlagsClass GFlagsClass;
typedef struct _GEnumValue GEnumValue;
typedef struct _GFlagsValue GFlagsValue;
/**
* GEnumClass:
* @g_type_class: the parent class
* @minimum: the smallest possible value.
* @maximum: the largest possible value.
* @n_values: the number of possible values.
* @values: an array of #GEnumValue structs describing the
* individual values.
*
* The class of an enumeration type holds information about its
* possible values.
*/
struct _GEnumClass
{
GTypeClass g_type_class;
@ -57,6 +136,17 @@ struct _GEnumClass
guint n_values;
GEnumValue *values;
};
/**
* GFlagsClass:
* @g_type_class: the parent class
* @mask: a mask covering all possible values.
* @n_values: the number of possible values.
* @values: an array of #GFlagsValue structs describing the
* individual values.
*
* The class of a flags type holds information about its
* possible values.
*/
struct _GFlagsClass
{
GTypeClass g_type_class;
@ -66,12 +156,30 @@ struct _GFlagsClass
guint n_values;
GFlagsValue *values;
};
/**
* GEnumValue:
* @value: the enum value
* @value_name: the name of the value
* @value_nick: the nickname of the value
*
* A structure which contains a single enum value, it's name, and it's
* nickname.
*/
struct _GEnumValue
{
gint value;
const gchar *value_name;
const gchar *value_nick;
};
/**
* GFlagsValue:
* @value: the flags value
* @value_name: the name of the value
* @value_nick: the nickname of the value
*
* A structure which contains a single flags value, it's name, and it's
* nickname.
*/
struct _GFlagsValue
{
guint value;