Qyoto
4.0.6
Qyoto is a C# language binding for Qt
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The QBuffer class provides a QIODevice interface for a QByteArray. More...
Public Member Functions | |
QBuffer (QObject parent=null) | |
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QBuffer (QByteArray buf, QObject parent=null) | |
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override void | CreateProxy () |
override void | Close () |
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override bool | Open (QIODevice.OpenModeFlag openMode) |
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override bool | Seek (long off) |
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new void | SetData (string data, int len) |
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new void | Dispose () |
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QIODevice () | |
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QIODevice (QObject parent) | |
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override void | CreateProxy () |
new bool | GetChar (Pointer< sbyte > c) |
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new QByteArray | Peek (long maxlen) |
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new long | Peek (Pointer< sbyte > data, long maxlen) |
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new bool | PutChar (char c) |
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new QByteArray | Read (long maxlen) |
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new long | Read (Pointer< sbyte > data, long maxlen) |
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new QByteArray | ReadAll () |
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new QByteArray | ReadLine (long maxlen=0) |
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new long | ReadLine (Pointer< sbyte > data, long maxlen) |
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virtual bool | Reset () |
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new void | SetTextModeEnabled (bool enabled) |
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new void | UngetChar (char c) |
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virtual bool | WaitForBytesWritten (int msecs) |
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virtual bool | WaitForReadyRead (int msecs) |
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new long | Write (QByteArray data) |
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new long | Write (string data) |
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new long | Write (string data, long len) |
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new void | Dispose () |
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QObject (QObject parent=null) | |
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new bool | BlockSignals (bool b) |
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new bool | Connect (QObject sender, string signal, string member, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection) |
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new void | DeleteLater () |
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new bool | Disconnect (QObject receiver, string member=null) |
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new bool | Disconnect (string signal=null, QObject receiver=null, string member=null) |
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new void | DumpObjectInfo () |
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new void | DumpObjectTree () |
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virtual bool | OnEvent (QEvent e) |
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virtual bool | EventFilter (QObject watched, QEvent @event) |
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new bool | Inherits (string classname) |
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new void | InstallEventFilter (QObject filterObj) |
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new void | KillTimer (int id) |
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new object | Property (string name) |
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new void | RemoveEventFilter (QObject obj) |
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new bool | SetProperty (string name, object value) |
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new void | SetUserData (uint id, QObjectUserData data) |
new int | StartTimer (int interval) |
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new QObjectUserData | UserData (uint id) |
new void | Dispose () |
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delegate QTextStream | FuncQTextStreamQTextStream (QTextStream qTextStream) |
delegate void | ActionQtMsgTypeString (QtMsgType qtMsgType, string @string) |
delegate QObject | FuncQObject () |
delegate string | FuncStringQByteArray (QByteArray qByteArray) |
delegate QByteArray | FuncQByteArrayString (string @string) |
Static Public Member Functions | |
static string | Tr (string s, string c=null) |
static string | Tr (string s, string c, int n) |
static string | TrUtf8 (string s, string c=null) |
static string | TrUtf8 (string s, string c, int n) |
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static string | Tr (string s, string c=null) |
static string | Tr (string s, string c, int n) |
static string | TrUtf8 (string s, string c=null) |
static string | TrUtf8 (string s, string c, int n) |
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static bool | Connect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod method, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection) |
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static bool | Connect (QObject sender, string signal, QObject receiver, string member, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection) |
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static bool | Disconnect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod member) |
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static bool | Disconnect (QObject sender, string signal, QObject receiver, string member) |
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static string | Tr (string s, string c=null) |
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static string | Tr (string s, string c, int n) |
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static string | TrUtf8 (string s, string c=null) |
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static string | TrUtf8 (string s, string c, int n) |
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static QDataStream | Write (QDataStream s, object p) |
static QDataStream | Write (QDataStream stream, QSizeF size) |
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static QDataStream | Write (QDataStream stream, QPoint point) |
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static QTextStream | Write (QTextStream s, Qt.FuncQTextStreamQTextStream f) |
static QDataStream | Write (QDataStream stream, QLineF line) |
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static QDataStream | Write (QDataStream stream, QPointF point) |
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static QDataStream | Write (QDataStream @out, QChar chr) |
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static QDataStream | Write (QDataStream @out, QByteArray ba) |
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static QDataStream | Write (QDataStream stream, QEasingCurve easing) |
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static QDataStream | Write (QDataStream stream, QRectF rectangle) |
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static QDataStream | Write (QDataStream @out, QDateTime dateTime) |
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static QDataStream | Write (QDataStream @out, QUrl url) |
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static QDataStream | Write (QDataStream @out, QTime time) |
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static QDataStream | Write (QDataStream arg1, QLocale arg2) |
static QDataStream | Write (QDataStream @out, QBitArray ba) |
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static QDataStream | Write (QDataStream s, QUuid id) |
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static QDataStream | Write (QDataStream stream, QLine line) |
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static QDataStream | Write (QDataStream @out, QDate date) |
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static QDataStream | Write (QDataStream @out, QRegExp regExp) |
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static QDataStream | Write (QDataStream stream, QRect rectangle) |
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static QDataStream | Write (QDataStream stream, QSize size) |
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static QDataStream | Write (QDataStream s, QVariant.Type p) |
static QDataStream | Write (QDataStream arg1, string arg2) |
static QDataStream | Write (QDataStream @out, System.Collections.Generic.List< string > list) |
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static QDataStream | Read (QDataStream @in, QChar chr) |
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static QDataStream | Read (QDataStream arg1, QLocale arg2) |
static QDataStream | Read (QDataStream stream, QRect rectangle) |
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static QDataStream | Read (QDataStream arg1, QEasingCurve arg2) |
static QDataStream | Read (QDataStream @in, QDate date) |
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static QDataStream | Read (QDataStream @in, QUrl url) |
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static QDataStream | Read (QDataStream s, QUuid id) |
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static QTextStream | Read (QTextStream s, Qt.FuncQTextStreamQTextStream f) |
static QDataStream | Read (QDataStream stream, QLineF line) |
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static QDataStream | Read (QDataStream stream, QRectF rectangle) |
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static QDataStream | Read (QDataStream stream, QPointF point) |
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static QDataStream | Read (QDataStream stream, QLine line) |
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static QDataStream | Read (QDataStream @in, QBitArray ba) |
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static QDataStream | Read (QDataStream stream, QSize size) |
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static QDataStream | Read (QDataStream @in, QDateTime dateTime) |
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static QDataStream | Read (QDataStream @in, QTime time) |
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static QDataStream | Read (QDataStream stream, QPoint point) |
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static QDataStream | Read (QDataStream @in, QRegExp regExp) |
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static QDataStream | Read (QDataStream s, object p) |
static QDataStream | Read (QDataStream @in, QByteArray ba) |
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static QDataStream | Read (QDataStream stream, QSizeF size) |
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static QDataStream | Read (QDataStream arg1, string arg2) |
static QDataStream | Read (QDataStream s, QVariant.Type p) |
static QDataStream | Read (QDataStream @in, System.Collections.Generic.List< string > list) |
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static double | QAcos (double v) |
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static void | QAddPostRoutine (System.Action ptr) |
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static double | QAsin (double v) |
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static double | QAtan (double v) |
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static double | QAtan2 (double x, double y) |
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static void | QBadAlloc () |
static int | QCeil (double v) |
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static ushort | QChecksum (string s, uint len) |
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static QByteArray | QCompress (QByteArray data, int compressionLevel=-1) |
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static QByteArray | QCompress (Pointer< byte > data, int nbytes, int compressionLevel=-1) |
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static double | QCos (double v) |
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static double | QExp (double v) |
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static double | QFabs (double v) |
static double | QFastCos (double x) |
static double | QFastSin (double x) |
static string | QFlagLocation (string method) |
static int | QFloor (double v) |
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static bool | QFuzzyCompare (double p1, double p2) |
static bool | QFuzzyCompare (float p1, float p2) |
static bool | QFuzzyIsNull (double d) |
static bool | QFuzzyIsNull (float f) |
static uint | QHash (QBitArray key) |
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static uint | QHash (QChar key) |
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static uint | QHash (QStringRef key) |
static uint | QHash (QUrl url) |
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static uint | QHash (QPersistentModelIndex index) |
static uint | QHash (QByteArray key) |
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static uint | QHash (QModelIndex index) |
static uint | QHash (uint key) |
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static uint | QHash (char key) |
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static uint | QHash (byte key) |
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static uint | QHash (short key) |
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static uint | QHash (NativeLong key) |
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static uint | QHash (ushort key) |
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static uint | QHash (long key) |
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static uint | QHash (ulong key) |
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static uint | QHash (int key) |
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static uint | QHash (string key) |
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static uint | QHash (NativeULong key) |
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static Qt.ActionQtMsgTypeString | QInstallMsgHandler (Qt.ActionQtMsgTypeString arg1) |
static int | QIntCast (float f) |
static int | QIntCast (double f) |
static bool | QIsFinite (double d) |
static bool | QIsFinite (float f) |
static bool | QIsInf (float f) |
static bool | QIsInf (double d) |
static bool | QIsNaN (float f) |
static bool | QIsNaN (double d) |
static bool | QIsNull (float f) |
static bool | QIsNull (double d) |
static double | QLn (double v) |
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static double | QPow (double x, double y) |
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static void | QRegisterStaticPluginInstanceFunction (Qt.FuncQObject function) |
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static void | QRemovePostRoutine (System.Action arg1) |
static int | QRound (double d) |
static long | QRound64 (double d) |
static double | QSin (double v) |
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static double | QSqrt (double v) |
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static bool | QStringComparisonHelper (QStringRef s1, string s2) |
static double | QTan (double v) |
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static QByteArray | QUncompress (QByteArray data) |
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static QByteArray | QUncompress (Pointer< byte > data, int nbytes) |
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static void | Qbswap_helper (Pointer< byte > src, Pointer< byte > dest, int size) |
static QByteArray | Qgetenv (string varName) |
static bool | Qputenv (string varName, QByteArray value) |
static void | Qsrand (uint seed) |
static int | Qstrcmp (QByteArray str1, QByteArray str2) |
static int | Qstrcmp (QByteArray str1, string str2) |
static int | Qstrcmp (string str1, QByteArray str2) |
static int | Qstrcmp (string str1, string str2) |
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static Pointer< sbyte > | Qstrcpy (Pointer< sbyte > dst, string src) |
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static Pointer< sbyte > | Qstrdup (string src) |
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static int | Qstricmp (string str1, string str2) |
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static uint | Qstrlen (string str) |
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static int | Qstrncmp (string str1, string str2, uint len) |
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static Pointer< sbyte > | Qstrncpy (Pointer< sbyte > dst, string src, uint len) |
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static int | Qstrnicmp (string str1, string str2, uint len) |
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static uint | Qstrnlen (string str, uint maxlen) |
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static string | QtTrId (string id, int n=-1) |
Protected Member Functions | |
QBuffer (System.Type dummy) | |
override void | ConnectNotify (string signal) |
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override void | DisconnectNotify (string signal) |
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override long | ReadData (Pointer< sbyte > data, long maxlen) |
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override long | WriteData (string data, long len) |
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QIODevice (System.Type dummy) | |
new void | OnAboutToClose () |
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new void | OnBytesWritten (long bytes) |
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new void | OnReadChannelFinished () |
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virtual long | ReadLineData (Pointer< sbyte > data, long maxlen) |
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new void | OnReadyRead () |
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QObject (System.Type dummy) | |
virtual void | OnChildEvent (QChildEvent @event) |
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virtual void | OnCustomEvent (QEvent @event) |
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new void | OnDestroyed (QObject obj=null) |
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new int | Receivers (string signal) |
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virtual void | OnTimerEvent (QTimerEvent @event) |
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Properties | |
QByteArray | Buffer [get, set] |
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QByteArray | Data [get, set] |
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override bool | AtEnd [get] |
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override bool | CanReadLine [get] |
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override long | Pos [get] |
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override long | Size [get] |
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static new QMetaObject | StaticMetaObject [get] |
new IQBufferSignals | Emit [get] |
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Slot | ReadyRead |
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Slot< System.Int64 > | BytesWritten |
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Slot | AboutToClose |
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Slot | ReadChannelFinished |
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string | ErrorString [get, set] |
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QIODevice.OpenModeFlag | OpenMode [get, set] |
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virtual bool | AtEnd [get] |
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virtual long | BytesAvailable [get] |
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virtual long | BytesToWrite [get] |
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virtual bool | CanReadLine [get] |
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bool | IsOpen [get] |
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bool | IsReadable [get] |
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virtual bool | IsSequential [get] |
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bool | IsTextModeEnabled [get] |
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bool | IsWritable [get] |
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virtual long | Pos [get] |
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virtual long | Size [get] |
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static new QMetaObject | StaticMetaObject [get] |
new IQIODeviceSignals | Emit [get] |
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virtual EventHandler < QEventArgs< QChildEvent > > | ChildEvent |
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virtual EventHandler < QEventArgs< QEvent > > | CustomEvent |
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virtual EventHandler < QEventArgs< QEvent > > | Event |
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virtual EventHandler < QEventArgs< QTimerEvent > > | TimerEvent |
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Slot< QObject > | DestroyedQObject |
Slot | Destroyed |
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QObject | Parent [get, set] |
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System.Collections.Generic.List < QObject > | Children [get] |
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System.Collections.Generic.List < QByteArray > | DynamicPropertyNames [get] |
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bool | IsWidgetType [get] |
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static uint | RegisterUserData [get] |
QObject | Sender [get] |
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int | SenderSignalIndex [get] |
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bool | SignalsBlocked [get] |
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virtual System.IntPtr | SmokeObject [get, set] |
new string | ObjectName [get, set] |
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static new QMetaObject | StaticMetaObject [get] |
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static new QMetaObject | StaticQtMetaObject [get] |
new IQObjectSignals | Emit [get] |
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static string | QAppName [get] |
static double | QInf [get] |
static double | QQNaN [get] |
static double | QSNaN [get] |
static bool | QSharedBuild [get] |
static string | QVersion [get] |
static int | Qrand [get] |
Additional Inherited Members | |
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enum | OpenModeFlag { Append = 4, NotOpen = 0, ReadOnly = 1, ReadWrite = 3, Text = 16, Truncate = 8, Unbuffered = 32, WriteOnly = 2 } |
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object | Q_EMIT = null |
SmokeInvocation | interceptor |
readonly List< QEventHandler > | eventFilters = new List<QEventHandler>() |
The QBuffer class provides a QIODevice interface for a QByteArray.
QBuffer allows you to access a QByteArray using the QIODevice interface. The QByteArray is treated just as a standard random-accessed file. Example:
QBuffer buffer;
char ch;
buffer.open(QBuffer::ReadWrite);
buffer.write("Qt rocks!");
buffer.seek(0);
buffer.getChar(&ch); // ch == 'Q'
buffer.getChar(&ch); // ch == 't'
buffer.getChar(&ch); // ch == ' '
buffer.getChar(&ch); // ch == 'r'
By default, an internal QByteArray buffer is created for you when you create a QBuffer. You can access this buffer directly by calling buffer(). You can also use QBuffer with an existing QByteArray by calling setBuffer(), or by passing your array to QBuffer's constructor.
Call open() to open the buffer. Then call write() or putChar() to write to the buffer, and read(), readLine(), readAll(), or getChar() to read from it. size() returns the current size of the buffer, and you can seek to arbitrary positions in the buffer by calling seek(). When you are done with accessing the buffer, call close().
The following code snippet shows how to write data to a QByteArray using QDataStream and QBuffer:
QByteArray byteArray;
QBuffer buffer(&byteArray);
buffer.open(QIODevice::WriteOnly);
QDataStream out(&buffer);
out << QApplication::palette();
Effectively, we convert the application's QPalette into a byte array. Here's how to read the data from the QByteArray:
QPalette palette;
QBuffer buffer(&byteArray);
buffer.open(QIODevice::ReadOnly);
QDataStream in(&buffer);
in >> palette;
QTextStream and QDataStream also provide convenience constructors that take a QByteArray and that create a QBuffer behind the scenes.
QBuffer emits readyRead() when new data has arrived in the buffer. By connecting to this signal, you can use QBuffer to store temporary data before processing it. For example, you can pass the buffer to QFtp when downloading a file from an FTP server. Whenever a new payload of data has been downloaded, readyRead() is emitted, and you can process the data that just arrived. QBuffer also emits bytesWritten() every time new data has been written to the buffer.
See also QFile, QDataStream, QTextStream, and QByteArray.
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QtCore.QBuffer.QBuffer | ( | QObject | parent = null | ) |
Constructs an empty buffer with the given parent. You can call setData() to fill the buffer with data, or you can open it in write mode and use write().
See also open().
QtCore.QBuffer.QBuffer | ( | QByteArray | buf, |
QObject | parent = null |
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Constructs a QBuffer that uses the QByteArray pointed to by byteArray as its internal buffer, and with the given parent. The caller is responsible for ensuring that byteArray remains valid until the QBuffer is destroyed, or until setBuffer() is called to change the buffer. QBuffer doesn't take ownership of the QByteArray.
If you open the buffer in write-only mode or read-write mode and write something into the QBuffer, byteArray will be modified.
Example:
QByteArray byteArray("abc");
QBuffer buffer(&byteArray);
buffer.open(QIODevice::WriteOnly);
buffer.seek(3);
buffer.write("def", 3);
buffer.close();
// byteArray == "abcdef"
See also open(), setBuffer(), and setData().
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Reimplemented from QIODevice::close().
Reimplemented from QtCore.QIODevice.
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protectedvirtual |
This virtual function is called when something has been connected to signal in this object.
If you want to compare signal with a specific signal, use QLatin1String and the SIGNAL() macro as follows:
if (QLatin1String(signal) == SIGNAL(valueChanged(int))) {
// signal is valueChanged(int)
}
If the signal contains multiple parameters or parameters that contain spaces, call QMetaObject::normalizedSignature() on the result of the SIGNAL() macro.
Warning: This function violates the object-oriented principle of modularity. However, it might be useful when you need to perform expensive initialization only if something is connected to a signal.
See also connect() and disconnectNotify().
Reimplemented from QtCore.QObject.
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Reimplemented from QtCore.QObject.
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protectedvirtual |
This virtual function is called when something has been disconnected from signal in this object.
See connectNotify() for an example of how to compare signal with a specific signal.
Warning: This function violates the object-oriented principle of modularity. However, it might be useful for optimizing access to expensive resources.
See also disconnect() and connectNotify().
Reimplemented from QtCore.QObject.
new void QtCore.QBuffer.Dispose | ( | ) |
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Reimplemented from QIODevice::open().
Reimplemented from QtCore.QIODevice.
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protectedvirtual |
Reimplemented from QIODevice::readData().
Implements QtCore.QIODevice.
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Reimplemented from QIODevice::seek().
Reimplemented from QtCore.QIODevice.
new void QtCore.QBuffer.SetData | ( | string | data, |
int | len | ||
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This is an overloaded function.
Sets the contents of the internal buffer to be the first size bytes of data.
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static |
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static |
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static |
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protectedvirtual |
Reimplemented from QIODevice::writeData().
Implements QtCore.QIODevice.
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get |
Reimplemented from QIODevice::atEnd().
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getset |
Returns a reference to the QBuffer's internal buffer. You can use it to modify the QByteArray behind the QBuffer's back.
Makes QBuffer uses the QByteArray pointed to by byteArray as its internal buffer. The caller is responsible for ensuring that byteArray remains valid until the QBuffer is destroyed, or until setBuffer() is called to change the buffer. QBuffer doesn't take ownership of the QByteArray.
Does nothing if isOpen() is true.
If you open the buffer in write-only mode or read-write mode and write something into the QBuffer, byteArray will be modified.
Example:
QByteArray byteArray("abc");
QBuffer buffer;
buffer.setBuffer(&byteArray);
buffer.open(QIODevice::WriteOnly);
buffer.seek(3);
buffer.write("def", 3);
buffer.close();
// byteArray == "abcdef"
If byteArray is 0, the buffer creates its own internal QByteArray to work on. This byte array is initially empty.
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get |
Reimplemented from QIODevice::canReadLine().
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getset |
Returns the data contained in the buffer.
This is the same as buffer().
Sets the contents of the internal buffer to be data. This is the same as assigning data to buffer().
Does nothing if isOpen() is true.
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getprotected |
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get |
Reimplemented from QIODevice::pos().
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get |
Reimplemented from QIODevice::size().
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staticget |