QVariant Class Reference

#include <qvariant.h>

Class Description

Definition at line 92 of file qvariant.h.

Classes
struct	Handler
struct	Private
struct	PrivateShared

Public Types
enum	Type {   Invalid = 0, Bool = 1, Int = 2, UInt = 3,   LongLong = 4, ULongLong = 5, Double = 6, Char = 7,   Map = 8, List = 9, String = 10, StringList = 11,   ByteArray = 12, BitArray = 13, Date = 14, Time = 15,   DateTime = 16, Url = 17, Locale = 18, Rect = 19,   RectF = 20, Size = 21, SizeF = 22, Line = 23,   LineF = 24, Point = 25, PointF = 26, RegExp = 27,   Hash = 28, EasingCurve = 29, LastCoreType = EasingCurve, Font = 64,   Pixmap = 65, Brush = 66, Color = 67, Palette = 68,   Icon = 69, Image = 70, Polygon = 71, Region = 72,   Bitmap = 73, Cursor = 74, SizePolicy = 75, KeySequence = 76,   Pen = 77, TextLength = 78, TextFormat = 79, Matrix = 80,   Transform = 81, Matrix4x4 = 82, Vector2D = 83, Vector3D = 84,   Vector4D = 85, Quaternion = 86, LastGuiType = Quaternion, UserType = 127,   LastType = 0xffffffff }
typedef void(*	f_construct) (Private *, const void *)
typedef void(*	f_clear) (Private *)
typedef bool(*	f_null) (const Private *)
typedef void(*	f_load) (Private *, QDataStream &)
typedef void(*	f_save) (const Private *, QDataStream &)
typedef bool(*	f_compare) (const Private *, const Private *)
typedef bool(*	f_convert) (const QVariant::Private *d, Type t, void *, bool *)
typedef bool(*	f_canConvert) (const QVariant::Private *d, Type t)
typedef void(*	f_debugStream) (QDebug, const QVariant &)
typedef Private	DataPtr

Public Member Functions
	QVariant ()
	~QVariant ()
	QVariant (Type type)
	QVariant (int typeOrUserType, const void *copy)
	QVariant (int typeOrUserType, const void *copy, uint flags)
	QVariant (const QVariant &other)
	QVariant (QDataStream &s)
	QVariant (int i)
	QVariant (uint ui)
	QVariant (qlonglong ll)
	QVariant (qulonglong ull)
	QVariant (bool b)
	QVariant (double d)
	QVariant (float f)
QT_ASCII_CAST_WARN_CONSTRUCTOR	QVariant (const char *str)
	QVariant (const QByteArray &bytearray)
	QVariant (const QBitArray &bitarray)
	QVariant (const QString &string)
	QVariant (const QLatin1String &string)
	QVariant (const QStringList &stringlist)
	QVariant (const QChar &qchar)
	QVariant (const QDate &date)
	QVariant (const QTime &time)
	QVariant (const QDateTime &datetime)
	QVariant (const QList< QVariant > &list)
	QVariant (const QMap< QString, QVariant > &map)
	QVariant (const QHash< QString, QVariant > &hash)
	QVariant (const QSize &size)
	QVariant (const QSizeF &size)
	QVariant (const QPoint &pt)
	QVariant (const QPointF &pt)
	QVariant (const QLine &line)
	QVariant (const QLineF &line)
	QVariant (const QRect &rect)
	QVariant (const QRectF &rect)
	QVariant (const QUrl &url)
	QVariant (const QLocale &locale)
	QVariant (const QRegExp &regExp)
	QVariant (const QEasingCurve &easing)
	QVariant (Qt::GlobalColor color)
QVariant &	operator= (const QVariant &other)
void	swap (QVariant &other)
Type	type () const
int	userType () const
const char *	typeName () const
bool	canConvert (Type t) const
bool	convert (Type t)
bool	isValid () const
bool	isNull () const
void	clear ()
void	detach ()
bool	isDetached () const
int	toInt (bool *ok=0) const
uint	toUInt (bool *ok=0) const
qlonglong	toLongLong (bool *ok=0) const
qulonglong	toULongLong (bool *ok=0) const
bool	toBool () const
double	toDouble (bool *ok=0) const
float	toFloat (bool *ok=0) const
qreal	toReal (bool *ok=0) const
QByteArray	toByteArray () const
QBitArray	toBitArray () const
QString	toString () const
QStringList	toStringList () const
QChar	toChar () const
QDate	toDate () const
QTime	toTime () const
QDateTime	toDateTime () const
QList< QVariant >	toList () const
QMap< QString, QVariant >	toMap () const
QHash< QString, QVariant >	toHash () const
QPoint	toPoint () const
QPointF	toPointF () const
QRect	toRect () const
QSize	toSize () const
QSizeF	toSizeF () const
QLine	toLine () const
QLineF	toLineF () const
QRectF	toRectF () const
QUrl	toUrl () const
QLocale	toLocale () const
QRegExp	toRegExp () const
QEasingCurve	toEasingCurve () const
void	load (QDataStream &ds)
void	save (QDataStream &ds) const
void *	data ()
const void *	constData () const
const void *	data () const
template<typename T >
void	setValue (const T &value)
template<typename T >
T	value () const
template<typename T >
bool	canConvert () const
bool	operator== (const QVariant &v) const
bool	operator!= (const QVariant &v) const
DataPtr &	data_ptr ()

Static Public Member Functions
static const char *	typeToName (Type type)
static Type	nameToType (const char *name)
template<typename T >
static QVariant	fromValue (const T &value)

Protected Member Functions
void	create (int type, const void *copy)
bool	cmp (const QVariant &other) const

Protected Attributes
Private	d

Static Protected Attributes
static const Handler *	handler

Friends
bool	qvariant_cast_helper (const QVariant &, QVariant::Type, void *)
int	qRegisterGuiVariant ()
int	qUnregisterGuiVariant ()
bool	operator== (const QVariant &, const QVariantComparisonHelper &)
Q_CORE_EXPORT QDebug	operator<< (QDebug, const QVariant &)

Member Typedef Documentation

typedef void(* f_construct) (Private *, const void *)

Definition at line 378 of file qvariant.h.

typedef void(* f_clear) (Private *)

Definition at line 379 of file qvariant.h.

typedef bool(* f_null) (const Private *)

Definition at line 380 of file qvariant.h.

typedef void(* f_load) (Private *, QDataStream &)

Definition at line 382 of file qvariant.h.

typedef void(* f_save) (const Private *, QDataStream &)

Definition at line 383 of file qvariant.h.

typedef bool(* f_compare) (const Private *, const Private *)

Definition at line 385 of file qvariant.h.

typedef bool(* f_convert) (const QVariant::Private *d, Type t, void *, bool *)

Definition at line 386 of file qvariant.h.

typedef bool(* f_canConvert) (const QVariant::Private *d, Type t)

Definition at line 387 of file qvariant.h.

typedef void(* f_debugStream) (QDebug, const QVariant &)

Definition at line 388 of file qvariant.h.

typedef Private DataPtr

Definition at line 439 of file qvariant.h.

Member Enumeration Documentation

enum Type

Enumerator
Invalid
Bool
Int
UInt
LongLong
ULongLong
Double
Char
Map
List
String
StringList
ByteArray
BitArray
Date
Time
DateTime
Url
Locale
Rect
RectF
Size
SizeF
Line
LineF
Point
PointF
RegExp
Hash
EasingCurve
LastCoreType
Font
Pixmap
Brush
Color
Palette
Icon
Image
Polygon
Region
Bitmap
Cursor
SizePolicy
KeySequence
Pen
TextLength
TextFormat
Matrix
Transform
Matrix4x4
Vector2D
Vector3D
Vector4D
Quaternion
LastGuiType
UserType
LastType

Definition at line 95 of file qvariant.h.

              {
        Invalid = 0,

        Bool = 1,
        Int = 2,
        UInt = 3,
        LongLong = 4,
        ULongLong = 5,
        Double = 6,
        Char = 7,
        Map = 8,
        List = 9,
        String = 10,
        StringList = 11,
        ByteArray = 12,
        BitArray = 13,
        Date = 14,
        Time = 15,
        DateTime = 16,
        Url = 17,
        Locale = 18,
        Rect = 19,
        RectF = 20,
        Size = 21,
        SizeF = 22,
        Line = 23,
        LineF = 24,
        Point = 25,
        PointF = 26,
        RegExp = 27,
        Hash = 28,
        EasingCurve = 29,
        LastCoreType = EasingCurve,

        // value 62 is internally reserved
#ifdef QT3_SUPPORT
        ColorGroup = 63,
#endif
        Font = 64,
        Pixmap = 65,
        Brush = 66,
        Color = 67,
        Palette = 68,
        Icon = 69,
        Image = 70,
        Polygon = 71,
        Region = 72,
        Bitmap = 73,
        Cursor = 74,
        SizePolicy = 75,
        KeySequence = 76,
        Pen = 77,
        TextLength = 78,
        TextFormat = 79,
        Matrix = 80,
        Transform = 81,
        Matrix4x4 = 82,
        Vector2D = 83,
        Vector3D = 84,
        Vector4D = 85,
        Quaternion = 86,
        LastGuiType = Quaternion,

        UserType = 127,
#ifdef QT3_SUPPORT
        IconSet = Icon,
        CString = ByteArray,
        PointArray = Polygon,
#endif
        LastType = 0xffffffff // need this so that gcc >= 3.4 allocates 32 bits for Type
    };

Constructor & Destructor Documentation

QVariant ( )

inline

Definition at line 484 of file qvariant.h.

{}

~QVariant

(

)

QVariant

(

Type

type

)

QVariant	(	int	typeOrUserType,
		const void *	copy
	)

QVariant	(	int	typeOrUserType,
		const void *	copy,
		uint	flags
	)

QVariant

(

const QVariant &

other

)

QVariant

(

QDataStream &

s

)

QVariant

(

int

i

)

QVariant

(

uint

ui

)

QVariant

(

qlonglong

ll

)

QVariant

(

qulonglong

ull

)

QVariant

(

bool

b

)

QVariant

(

double

d

)

QVariant ( float  f )

inline

Definition at line 184 of file qvariant.h.

{ d.is_null = false; d.type = QMetaType::Float; d.data.f = f; }

QT_ASCII_CAST_WARN_CONSTRUCTOR QVariant

(

const char *

str

)

QVariant

(

const QByteArray &

bytearray

)

QVariant

(

const QBitArray &

bitarray

)

QVariant

(

const QString &

string

)

QVariant

(

const QLatin1String &

string

)

QVariant

(

const QStringList &

stringlist

)

QVariant

(

const QChar &

qchar

)

QVariant

(

const QDate &

date

)

QVariant

(

const QTime &

time

)

QVariant

(

const QDateTime &

datetime

)

QVariant

(

const QList< QVariant > &

list

)

QVariant

(

const QMap< QString, QVariant > &

map

)

QVariant

(

const QHash< QString, QVariant > &

hash

)

QVariant

(

const QSize &

size

)

QVariant

(

const QSizeF &

size

)

QVariant

(

const QPoint &

pt

)

QVariant

(

const QPointF &

pt

)

QVariant

(

const QLine &

line

)

QVariant

(

const QLineF &

line

)

QVariant

(

const QRect &

rect

)

QVariant

(

const QRectF &

rect

)

QVariant

(

const QUrl &

url

)

QVariant

(

const QLocale &

locale

)

QVariant

(

const QRegExp &

regExp

)

QVariant

(

const QEasingCurve &

easing

)

QVariant

(

Qt::GlobalColor

color

)

Member Function Documentation

QVariant& operator=

(

const QVariant &

other

)

void swap ( QVariant &  other )

inline

Definition at line 227 of file qvariant.h.

{ qSwap(d, other.d); }

Type type

(

)

const

int userType

(

)

const

const char* typeName

(

)

const

bool canConvert

(

Type

t

)

const

bool convert

(

Type

t

)

bool isValid ( ) const

inline

Definition at line 485 of file qvariant.h.

{ return d.type != Invalid; }

bool isNull

(

)

const

void clear

(

)

void detach

(

)

bool isDetached ( ) const

inline

Definition at line 537 of file qvariant.h.

{ return !d.is_shared || d.data.shared->ref == 1; }

int toInt

(

bool *

ok = 0

)

const

uint toUInt

(

bool *

ok = 0

)

const

qlonglong toLongLong

(

bool *

ok = 0

)

const

qulonglong toULongLong

(

bool *

ok = 0

)

const

bool toBool

(

)

const

double toDouble

(

bool *

ok = 0

)

const

float toFloat

(

bool *

ok = 0

)

const

qreal toReal

(

bool *

ok = 0

)

const

QByteArray toByteArray

(

)

const

QBitArray toBitArray

(

)

const

QString toString

(

)

const

QStringList toStringList

(

)

const

QChar toChar

(

)

const

QDate toDate

(

)

const

QTime toTime

(

)

const

QDateTime toDateTime

(

)

const

QList<QVariant> toList

(

)

const

QMap<QString, QVariant> toMap

(

)

const

QHash<QString, QVariant> toHash

(

)

const

QPoint toPoint

(

)

const

QPointF toPointF

(

)

const

QRect toRect

(

)

const

QSize toSize

(

)

const

QSizeF toSizeF

(

)

const

QLine toLine

(

)

const

QLineF toLineF

(

)

const

QRectF toRectF

(

)

const

QUrl toUrl

(

)

const

QLocale toLocale

(

)

const

QRegExp toRegExp

(

)

const

QEasingCurve toEasingCurve

(

)

const

void load

(

QDataStream &

ds

)

void save

(

QDataStream &

ds

)

const

static const char* typeToName ( Type  type )

static

static Type nameToType ( const char *  name )

static

void* data

(

)

const void* constData

(

)

const

const void* data ( ) const

inline

Definition at line 326 of file qvariant.h.

{ return constData(); }

void setValue ( const T &  value )

inline

Definition at line 527 of file qvariant.h.

{ qVariantSetValue(*this, avalue); }

T value ( ) const

inline

Definition at line 332 of file qvariant.h.

    { return qvariant_cast<T>(*this); }

static QVariant fromValue ( const T &  value )

inlinestatic

Definition at line 336 of file qvariant.h.

    { return qVariantFromValue(value); }

bool canConvert ( ) const

inline

Definition at line 340 of file qvariant.h.

    { return canConvert(Type(qMetaTypeId<T>())); }

bool operator== ( const QVariant &  v ) const

inline

Definition at line 404 of file qvariant.h.

    { return cmp(v); }

bool operator!= ( const QVariant &  v ) const

inline

Definition at line 406 of file qvariant.h.

    { return !cmp(v); }

void create ( int  type, const void *  copy  )

protected

bool cmp ( const QVariant &  other ) const

protected

DataPtr& data_ptr ( )

inline

Definition at line 440 of file qvariant.h.

{ return d; }

Friends And Related Function Documentation

bool qvariant_cast_helper ( const QVariant &  v, QVariant::Type  tp, void *  ptr  )

friend

Definition at line 447 of file qvariant.h.

{ return QVariant::handler->convert(&v.d, tp, ptr, 0); }

int qRegisterGuiVariant ( )

friend

int qUnregisterGuiVariant ( )

friend

bool operator== ( const QVariant &  v1, const QVariantComparisonHelper &  v2  )

friend

Definition at line 559 of file qvariant.h.

{
    return v1.cmp(*v2.v);
}

Q_CORE_EXPORT QDebug operator<< ( QDebug  , const QVariant &    )

friend

Member Data Documentation

Private d

protected

Definition at line 417 of file qvariant.h.

const Handler* handler

staticprotected

Definition at line 419 of file qvariant.h.

---

The documentation for this class was generated from the following file:

• QtCore/qvariant.h