Qyoto
4.0.7
Qyoto is a C# language binding for Qt
|
The QImageIOPlugin class defines an interface for writing an image format plugin. More...
Public Types | |
enum | Capability { CanRead = 1, CanReadIncremental = 4, CanWrite = 2 } |
More... | |
Public Member Functions | |
QImageIOPlugin (QObject parent=null) | |
More... | |
override void | CreateProxy () |
abstract QImageIOPlugin.Capability | Capabilities (QIODevice device, QByteArray format) |
More... | |
new QImageIOHandler | Create (QIODevice device) |
More... | |
abstract QImageIOHandler | Create (QIODevice device, QByteArray format) |
More... | |
new void | Dispose () |
![]() | |
QObject (QObject parent=null) | |
More... | |
new bool | BlockSignals (bool b) |
More... | |
new bool | Connect (QObject sender, string signal, string member, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection) |
More... | |
new void | DeleteLater () |
More... | |
new bool | Disconnect (QObject receiver, string member=null) |
More... | |
new bool | Disconnect (string signal=null, QObject receiver=null, string member=null) |
More... | |
new void | DumpObjectInfo () |
More... | |
new void | DumpObjectTree () |
More... | |
virtual bool | OnEvent (QEvent e) |
More... | |
virtual bool | EventFilter (QObject watched, QEvent @event) |
More... | |
new bool | Inherits (string classname) |
More... | |
new void | InstallEventFilter (QObject filterObj) |
More... | |
new void | KillTimer (int id) |
More... | |
new object | Property (string name) |
More... | |
new void | RemoveEventFilter (QObject obj) |
More... | |
new bool | SetProperty (string name, object value) |
More... | |
new void | SetUserData (uint id, QObjectUserData data) |
new int | StartTimer (int interval) |
More... | |
new QObjectUserData | UserData (uint id) |
new void | Dispose () |
![]() | |
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) |
![]() | |
static bool | Connect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod method, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection) |
More... | |
static bool | Connect (QObject sender, string signal, QObject receiver, string member, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection) |
More... | |
static bool | Disconnect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod member) |
More... | |
static bool | Disconnect (QObject sender, string signal, QObject receiver, string member) |
More... | |
static string | Tr (string s, string c=null) |
More... | |
static string | Tr (string s, string c, int n) |
More... | |
static string | TrUtf8 (string s, string c=null) |
More... | |
static string | TrUtf8 (string s, string c, int n) |
More... | |
![]() | |
static QDataStream | Write (QDataStream s, object p) |
static QDataStream | Write (QDataStream stream, QSizeF size) |
More... | |
static QDataStream | Write (QDataStream stream, QPoint point) |
More... | |
static QTextStream | Write (QTextStream s, Qt.FuncQTextStreamQTextStream f) |
static QDataStream | Write (QDataStream stream, QLineF line) |
More... | |
static QDataStream | Write (QDataStream stream, QPointF point) |
More... | |
static QDataStream | Write (QDataStream @out, QChar chr) |
More... | |
static QDataStream | Write (QDataStream @out, QByteArray ba) |
More... | |
static QDataStream | Write (QDataStream stream, QEasingCurve easing) |
More... | |
static QDataStream | Write (QDataStream stream, QRectF rectangle) |
More... | |
static QDataStream | Write (QDataStream @out, QDateTime dateTime) |
More... | |
static QDataStream | Write (QDataStream @out, QUrl url) |
More... | |
static QDataStream | Write (QDataStream @out, QTime time) |
More... | |
static QDataStream | Write (QDataStream arg1, QLocale arg2) |
static QDataStream | Write (QDataStream @out, QBitArray ba) |
More... | |
static QDataStream | Write (QDataStream s, QUuid id) |
More... | |
static QDataStream | Write (QDataStream stream, QLine line) |
More... | |
static QDataStream | Write (QDataStream @out, QDate date) |
More... | |
static QDataStream | Write (QDataStream @out, QRegExp regExp) |
More... | |
static QDataStream | Write (QDataStream stream, QRect rectangle) |
More... | |
static QDataStream | Write (QDataStream stream, QSize size) |
More... | |
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) |
More... | |
static QDataStream | Read (QDataStream @in, QChar chr) |
More... | |
static QDataStream | Read (QDataStream arg1, QLocale arg2) |
static QDataStream | Read (QDataStream stream, QRect rectangle) |
More... | |
static QDataStream | Read (QDataStream arg1, QEasingCurve arg2) |
static QDataStream | Read (QDataStream @in, QDate date) |
More... | |
static QDataStream | Read (QDataStream @in, QUrl url) |
More... | |
static QDataStream | Read (QDataStream s, QUuid id) |
More... | |
static QTextStream | Read (QTextStream s, Qt.FuncQTextStreamQTextStream f) |
static QDataStream | Read (QDataStream stream, QLineF line) |
More... | |
static QDataStream | Read (QDataStream stream, QRectF rectangle) |
More... | |
static QDataStream | Read (QDataStream stream, QPointF point) |
More... | |
static QDataStream | Read (QDataStream stream, QLine line) |
More... | |
static QDataStream | Read (QDataStream @in, QBitArray ba) |
More... | |
static QDataStream | Read (QDataStream stream, QSize size) |
More... | |
static QDataStream | Read (QDataStream @in, QDateTime dateTime) |
More... | |
static QDataStream | Read (QDataStream @in, QTime time) |
More... | |
static QDataStream | Read (QDataStream stream, QPoint point) |
More... | |
static QDataStream | Read (QDataStream @in, QRegExp regExp) |
More... | |
static QDataStream | Read (QDataStream s, object p) |
static QDataStream | Read (QDataStream @in, QByteArray ba) |
More... | |
static QDataStream | Read (QDataStream stream, QSizeF size) |
More... | |
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) |
More... | |
static double | QAcos (double v) |
More... | |
static void | QAddPostRoutine (System.Action ptr) |
More... | |
static double | QAsin (double v) |
More... | |
static double | QAtan (double v) |
More... | |
static double | QAtan2 (double x, double y) |
More... | |
static void | QBadAlloc () |
static int | QCeil (double v) |
More... | |
static ushort | QChecksum (string s, uint len) |
More... | |
static QByteArray | QCompress (QByteArray data, int compressionLevel=-1) |
More... | |
static QByteArray | QCompress (Pointer< byte > data, int nbytes, int compressionLevel=-1) |
More... | |
static double | QCos (double v) |
More... | |
static double | QExp (double v) |
More... | |
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) |
More... | |
static bool | QFuzzyCompare (double p1, double p2) |
More... | |
static bool | QFuzzyCompare (float p1, float p2) |
More... | |
static bool | QFuzzyIsNull (double d) |
static bool | QFuzzyIsNull (float f) |
static uint | QHash (QBitArray key) |
More... | |
static uint | QHash (QChar key) |
More... | |
static uint | QHash (QStringRef key) |
static uint | QHash (QUrl url) |
More... | |
static uint | QHash (QPersistentModelIndex index) |
static uint | QHash (QByteArray key) |
More... | |
static uint | QHash (QModelIndex index) |
static uint | QHash (uint key) |
More... | |
static uint | QHash (char key) |
More... | |
static uint | QHash (byte key) |
More... | |
static uint | QHash (short key) |
More... | |
static uint | QHash (NativeLong key) |
More... | |
static uint | QHash (ushort key) |
More... | |
static uint | QHash (long key) |
More... | |
static uint | QHash (ulong key) |
More... | |
static uint | QHash (int key) |
More... | |
static uint | QHash (string key) |
More... | |
static uint | QHash (NativeULong key) |
More... | |
static Qt.ActionQtMsgTypeString | QInstallMsgHandler (Qt.ActionQtMsgTypeString handler) |
More... | |
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) |
More... | |
static double | QPow (double x, double y) |
More... | |
static void | QRegisterStaticPluginInstanceFunction (Qt.FuncQObject function) |
More... | |
static void | QRemovePostRoutine (System.Action arg1) |
static int | QRound (double d) |
More... | |
static long | QRound64 (double d) |
More... | |
static double | QSin (double v) |
More... | |
static double | QSqrt (double v) |
More... | |
static bool | QStringComparisonHelper (QStringRef s1, string s2) |
static double | QTan (double v) |
More... | |
static QByteArray | QUncompress (QByteArray data) |
More... | |
static QByteArray | QUncompress (Pointer< byte > data, int nbytes) |
More... | |
static void | Qbswap_helper (Pointer< byte > src, Pointer< byte > dest, int size) |
static QByteArray | Qgetenv (string varName) |
More... | |
static bool | Qputenv (string varName, QByteArray value) |
More... | |
static void | Qsrand (uint seed) |
More... | |
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) |
More... | |
static Pointer< sbyte > | Qstrcpy (Pointer< sbyte > dst, string src) |
More... | |
static Pointer< sbyte > | Qstrdup (string src) |
More... | |
static int | Qstricmp (string str1, string str2) |
More... | |
static uint | Qstrlen (string str) |
More... | |
static int | Qstrncmp (string str1, string str2, uint len) |
More... | |
static Pointer< sbyte > | Qstrncpy (Pointer< sbyte > dst, string src, uint len) |
More... | |
static int | Qstrnicmp (string str1, string str2, uint len) |
More... | |
static uint | Qstrnlen (string str, uint maxlen) |
More... | |
Protected Member Functions | |
QImageIOPlugin (System.Type dummy) | |
![]() | |
QObject (System.Type dummy) | |
virtual void | OnChildEvent (QChildEvent @event) |
More... | |
virtual void | ConnectNotify (string signal) |
More... | |
virtual void | OnCustomEvent (QEvent @event) |
More... | |
new void | OnDestroyed (QObject obj=null) |
More... | |
virtual void | DisconnectNotify (string signal) |
More... | |
new int | Receivers (string signal) |
More... | |
virtual void | OnTimerEvent (QTimerEvent @event) |
More... | |
Properties | |
virtual System.Collections.Generic.List < string > | Keys [get] |
More... | |
static new QMetaObject | StaticMetaObject [get] |
new IQImageIOPluginSignals | Emit [get] |
![]() | |
virtual EventHandler < QEventArgs< QChildEvent > > | ChildEvent |
More... | |
virtual EventHandler < QEventArgs< QEvent > > | CustomEvent |
More... | |
virtual EventHandler < QEventArgs< QEvent > > | Event |
More... | |
virtual EventHandler < QEventArgs< QTimerEvent > > | TimerEvent |
More... | |
Slot< QObject > | DestroyedObj |
More... | |
Slot | Destroyed |
More... | |
QObject | Parent [get, set] |
More... | |
System.Collections.Generic.List < QObject > | Children [get] |
More... | |
System.Collections.Generic.List < QByteArray > | DynamicPropertyNames [get] |
More... | |
bool | IsWidgetType [get] |
More... | |
static uint | RegisterUserData [get] |
QObject | Sender [get] |
More... | |
int | SenderSignalIndex [get] |
More... | |
bool | SignalsBlocked [get] |
More... | |
virtual System.IntPtr | SmokeObject [get, set] |
new string | ObjectName [get, set] |
More... | |
static new QMetaObject | StaticMetaObject [get] |
More... | |
static new QMetaObject | StaticQtMetaObject [get] |
new IQObjectSignals | Emit [get] |
![]() | |
static string | QAppName [get] |
static double | QInf [get] |
static double | QQNaN [get] |
static double | QSNaN [get] |
static bool | QSharedBuild [get] |
static string | QVersion [get] |
More... | |
static int | Qrand [get] |
More... | |
Additional Inherited Members | |
![]() | |
</para > *< para > Creating QM files suitable for use with this[SmokeMethod("qtTrId(const char*, int)")] static strin | QtTrId )(string id, int n=-1) |
![]() | |
object | Q_EMIT = null |
SmokeInvocation | interceptor |
readonly List< QEventHandler > | eventFilters = new List<QEventHandler>() |
The QImageIOPlugin class defines an interface for writing an image format plugin.
QImageIOPlugin is a factory for creating QImageIOHandler objects, which are used internally by QImageReader and QImageWriter to add support for different image formats to Qt.
Writing an image I/O plugin is achieved by subclassing this base class, reimplementing the pure virtual functions capabilities(), create(), and keys(), and exporting the class with the Q_EXPORT_PLUGIN2() macro. See How to Create Qt Plugins for details.
An image format plugin can support three capabilities: reading (CanRead), writing (CanWrite) and incremental reading (CanReadIncremental). Reimplement capabilities() in you subclass to expose the capabilities of your image format.
create() should create an instance of your QImageIOHandler subclass, with the provided device and format properly set, and return this handler. You must also reimplement keys() so that Qt knows which image formats your plugin supports.
Different plugins can support different capabilities. For example, you may have one plugin that supports reading the GIF format, and another that supports writing. Qt will select the correct plugin for the job, depending on the return value of capabilities(). If several plugins support the same capability, Qt will select one arbitrarily.
See also QImageIOHandler and How to Create Qt Plugins.
This enum describes the capabilities of a QImageIOPlugin.
Enumerator | |
---|---|
CanRead |
The plugin can read images. |
CanReadIncremental |
The plugin can read images incrementally. |
CanWrite |
The plugin can write images. |
|
protected |
QtGui.QImageIOPlugin.QImageIOPlugin | ( | QObject | parent = null | ) |
Constructs an image plugin with the given parent. This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.
|
pure virtual |
Returns the capabilities on the plugin, based on the data in device and the format format. For example, if the QImageIOHandler supports the BMP format, and the data in the device starts with the characters "BM", this function should return CanRead. If format is "bmp" and the handler supports both reading and writing, this function should return CanRead | CanWrite.
new QImageIOHandler QtGui.QImageIOPlugin.Create | ( | QIODevice | device | ) |
Creates and returns a QImageIOHandler subclass, with device and format set. The format must come from the list returned by keys(). Format names are case sensitive.
See also keys().
Implements QtGui.IQImageIOHandlerFactoryInterface.
|
pure virtual |
Creates and returns a QImageIOHandler subclass, with device and format set. The format must come from the list returned by keys(). Format names are case sensitive.
See also keys().
Implements QtGui.IQImageIOHandlerFactoryInterface.
|
virtual |
new void QtGui.QImageIOPlugin.Dispose | ( | ) |
|
static |
|
static |
|
static |
|
static |
|
getprotected |
|
get |
Returns the list of image keys this plugin supports.
These keys are usually the names of the image formats that are implemented in the plugin (e.g., "jpg" or "gif").
See also capabilities().
|
staticget |