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Migrating docs.

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* docs/reference/gobject/tmpl/gparamspec.sgml:
	* gobject/gparam.c:
	* gobject/gparam.h:
	  Migrating docs.


svn path=/trunk/; revision=7073
This commit is contained in:
Stefan Kost
2008-06-21 13:47:14 +00:00
parent d5f1c71fde
commit fb07c65020
4 changed files with 475 additions and 550 deletions
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160
gobject/gparam.h
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@@ -30,22 +30,103 @@
G_BEGIN_DECLS
/* --- standard type macros --- */
/**
* G_TYPE_IS_PARAM:
* @type: a #GType ID
*
* Checks whether @type "is a" %G_TYPE_PARAM.
*/
#define G_TYPE_IS_PARAM(type) (G_TYPE_FUNDAMENTAL (type) == G_TYPE_PARAM)
/**
* G_PARAM_SPEC:
* @pspec: a valid #GParamSpec
*
* Casts a derived #GParamSpec object (e.g. of type #GParamSpecInt) into
* a #GParamSpec object.
*/
#define G_PARAM_SPEC(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), G_TYPE_PARAM, GParamSpec))
/**
* G_IS_PARAM_SPEC:
* @pspec: a #GParamSpec
*
* Checks whether @pspec "is a" valid #GParamSpec structure of type %G_TYPE_PARAM
* or derived.
*/
#define G_IS_PARAM_SPEC(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), G_TYPE_PARAM))
/**
* G_PARAM_SPEC_CLASS:
* @pclass: a valid #GParamSpecClass
*
* Casts a derived #GParamSpecClass structure into a #GParamSpecClass structure.
*/
#define G_PARAM_SPEC_CLASS(pclass) (G_TYPE_CHECK_CLASS_CAST ((pclass), G_TYPE_PARAM, GParamSpecClass))
/**
* G_IS_PARAM_SPEC_CLASS:
* @pclass: a #GParamSpecClass
*
* Checks whether @pclass "is a" valid #GParamSpecClass structure of type
* %G_TYPE_PARAM or derived.
*/
#define G_IS_PARAM_SPEC_CLASS(pclass) (G_TYPE_CHECK_CLASS_TYPE ((pclass), G_TYPE_PARAM))
/**
* G_PARAM_SPEC_GET_CLASS:
* @pspec: a valid #GParamSpec
*
* Retrieves the #GParamSpecClass of a #GParamSpec.
*/
#define G_PARAM_SPEC_GET_CLASS(pspec) (G_TYPE_INSTANCE_GET_CLASS ((pspec), G_TYPE_PARAM, GParamSpecClass))
/* --- convenience macros --- */
/**
* G_PARAM_SPEC_TYPE:
* @pspec: a valid #GParamSpec
*
* Retrieves the #GType of this @pspec.
*/
#define G_PARAM_SPEC_TYPE(pspec) (G_TYPE_FROM_INSTANCE (pspec))
/**
* G_PARAM_SPEC_TYPE_NAME:
* @pspec: a valid #GParamSpec
*
* Retrieves the #GType name of this @pspec.
*/
#define G_PARAM_SPEC_TYPE_NAME(pspec) (g_type_name (G_PARAM_SPEC_TYPE (pspec)))
/**
* G_PARAM_SPEC_VALUE_TYPE:
* @pspec: a valid #GParamSpec
*
* Retrieves the #GType to initialize a #GValue for this parameter.
*/
#define G_PARAM_SPEC_VALUE_TYPE(pspec) (G_PARAM_SPEC (pspec)->value_type)
#define G_VALUE_HOLDS_PARAM(value) (G_TYPE_CHECK_VALUE_TYPE ((value), G_TYPE_PARAM))
/* --- flags --- */
/**
* GParamFlags:
* @G_PARAM_READABLE: the parameter is readable
* @G_PARAM_WRITABLE: the parameter is writable
* @G_PARAM_CONSTRUCT: the parameter will be set upon object construction
* @G_PARAM_CONSTRUCT_ONLY: the parameter will only be set upon object construction
* @G_PARAM_LAX_VALIDATION: upon parameter conversion (see g_param_value_convert())
* strict validation is not required
* @G_PARAM_STATIC_NAME: the string used as name when constructing the
* parameter is guaranteed to remain valid and
* unmodified for the lifetime of the parameter.
* Since 2.8
* @G_PARAM_PRIVATE: * @G_PARAM_STATIC_NICK: the string used as nick when constructing the
* parameter is guaranteed to remain valid and
* unmmodified for the lifetime of the parameter.
* Since 2.8
* @G_PARAM_STATIC_BLURB: the string used as blurb when constructing the
* parameter is guaranteed to remain valid and
* unmodified for the lifetime of the parameter.
* Since 2.8
*
* Through the #GParamFlags flag values, certain aspects of parameters
* can be configured.
*/
typedef enum
{
G_PARAM_READABLE = 1 << 0,
@@ -60,10 +141,33 @@ typedef enum
G_PARAM_STATIC_NICK = 1 << 6,
G_PARAM_STATIC_BLURB = 1 << 7
} GParamFlags;
/**
* G_PARAM_READWRITE:
*
* #GParamFlags value alias for %G_PARAM_READABLE | %G_PARAM_WRITABLE.
*/
#define G_PARAM_READWRITE (G_PARAM_READABLE | G_PARAM_WRITABLE)
/**
* G_PARAM_STATIC_STRINGS:
*
* #GParamFlags value alias for %G_PARAM_STATIC_NAME | %G_PARAM_STATIC_NICK | %G_PARAM_STATIC_BLURB.
*
* Since 2.13.0
*/
#define G_PARAM_STATIC_STRINGS (G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB)
#define G_PARAM_MASK (0x000000ff)
/* bits in the range 0xffffff00 are reserved for 3rd party usage */
/**
* G_PARAM_MASK:
*
* Mask containing the bits of #GParamSpec.flags which are reserved for GLib.
*/
#define G_PARAM_MASK (0x000000ff)
/**
* G_PARAM_USER_SHIFT:
*
* Minimum shift count to be used for user defined flags, to be stored in
* #GParamSpec.flags.
*/
#define G_PARAM_USER_SHIFT (8)
@@ -72,6 +176,17 @@ typedef struct _GParamSpec GParamSpec;
typedef struct _GParamSpecClass GParamSpecClass;
typedef struct _GParameter GParameter;
typedef struct _GParamSpecPool GParamSpecPool;
/**
* GParamSpec:
* @g_type_instance: private #GTypeInstance portion
* @name: name of this parameter
* @flags: #GParamFlags flags for this parameter
* @value_type: the #GValue type for this parameter
* @owner_type: #GType type that uses (introduces) this paremeter
*
* All fields of the <structname>GParamSpec</structname> struct are private and
* should not be used directly, except for the following:
*/
struct _GParamSpec
{
GTypeInstance g_type_instance;
@@ -88,6 +203,25 @@ struct _GParamSpec
guint ref_count;
guint param_id; /* sort-criteria */
};
/**
* GParamSpecClass:
* @g_type_class: the parent class
* @value_type: the #GValue type for this parameter
* @finalize: The instance finalization function (optional), should chain
* up to the finalize method of the parent class.
* @value_set_default: Resets a @value to the default value for this type
* (recommended, the default is g_value_reset()), see
* g_param_value_set_default().
* @value_validate: Ensures that the contents of @value comply with the
* specifications set out by this type (optional), see
* g_param_value_set_validate().
* @values_cmp: Compares @value1 with @value2 according to this type
* (recommended, the default is memcmp()), see g_param_values_cmp().
*
* The class structure for the <structname>GParamSpec</structname> type.
* Normally, <structname>GParamSpec</structname> classes are filled by
* g_param_type_register_static().
*/
struct _GParamSpecClass
{
GTypeClass g_type_class;
@@ -163,6 +297,30 @@ void g_value_set_param_take_ownership (GValue *value,
/* --- convenience functions --- */
typedef struct _GParamSpecTypeInfo GParamSpecTypeInfo;
/**
* GParamSpecTypeInfo:
* @instance_size: Size of the instance (object) structure.
* @n_preallocs: Prior to GLib 2.10, it specified the number of pre-allocated (cached) instances to reserve memory for (0 indicates no caching). Since GLib 2.10, it is ignored, since instances are allocated with the <link linkend="glib-Memory-Slices">slice allocator</link> now.
* @instance_init: Location of the instance initialization function (optional).
* @value_type: The #GType of values conforming to this #GParamSpec
* @finalize: The instance finalization function (optional).
* @value_set_default: Resets a @value to the default value for @pspec
* (recommended, the default is g_value_reset()), see
* g_param_value_set_default().
* @value_validate: Ensures that the contents of @value comply with the
* specifications set out by @pspec (optional), see
* g_param_value_set_validate().
* @values_cmp: Compares @value1 with @value2 according to @pspec
* (recommended, the default is memcmp()), see g_param_values_cmp().
*
* This structure is used to provide the type system with the information
* required to initialize and destruct (finalize) a parameter's class and
* instances thereof.
* The initialized structure is passed to the g_param_type_register_static()
* The type system will perform a deep copy of this structure, so it's memory
* does not need to be persistent across invocation of
* g_param_type_register_static().
*/
struct _GParamSpecTypeInfo
{
/* type system portion */