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Qt 4.8
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Qt 4.8
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The QTemporaryFile class is an I/O device that operates on temporary files. More...
#include <qtemporaryfile.h>
Public Functions | |
| bool | autoRemove () const |
| Returns true if the QTemporaryFile is in auto remove mode. More... | |
| virtual QAbstractFileEngine * | fileEngine () const |
| QString | fileName () const |
| Returns the complete unique filename backing the QTemporaryFile object. More... | |
| QString | fileTemplate () const |
| Returns the set file template. More... | |
| bool | open () |
| A QTemporaryFile will always be opened in QIODevice::ReadWrite mode, this allows easy access to the data in the file. More... | |
| QTemporaryFile () | |
| Constructs a QTemporaryFile in QDir::tempPath(), using the file template "qt_temp.XXXXXX". More... | |
| QTemporaryFile (const QString &templateName) | |
| Constructs a QTemporaryFile with a template filename of templateName. More... | |
| QTemporaryFile (QObject *parent) | |
| Constructs a QTemporaryFile (with the given parent) in QDir::tempPath(), using the file template "qt_temp.XXXXXX". More... | |
| QTemporaryFile (const QString &templateName, QObject *parent) | |
| Constructs a QTemporaryFile with a template filename of templateName and the specified parent. More... | |
| void | setAutoRemove (bool b) |
| Sets the QTemporaryFile into auto-remove mode if b is true. More... | |
| void | setFileTemplate (const QString &name) |
| Sets the static portion of the file name to name. More... | |
| ~QTemporaryFile () | |
| Destroys the temporary file object, the file is automatically closed if necessary and if in auto remove mode it will automatically delete the file. More... | |
 Public Functions inherited from QFile | |
| bool | atEnd () const |
| Returns true if the end of the file has been reached; otherwise returns false. More... | |
| virtual void | close () |
| Calls QFile::flush() and closes the file. More... | |
| bool | copy (const QString &newName) |
| Copies the file currently specified by fileName() to a file called newName. More... | |
| FileError | error () const |
| Returns the file error status. More... | |
| bool | exists () const |
| Returns true if the file specified by fileName() exists; otherwise returns false. More... | |
| QString | fileName () const |
| Returns the name set by setFileName() or to the QFile constructors. More... | |
| bool | flush () |
| Flushes any buffered data to the file. More... | |
| int | handle () const |
| Returns the file handle of the file. More... | |
| bool | isSequential () const |
| Returns true if the file can only be manipulated sequentially; otherwise returns false. More... | |
| bool | link (const QString &newName) |
| Creates a link named linkName that points to the file currently specified by fileName(). More... | |
| uchar * | map (qint64 offset, qint64 size, MemoryMapFlags flags=NoOptions) |
| Maps size bytes of the file into memory starting at offset. More... | |
| bool | open (FILE *f, OpenMode flags) |
| Opens the existing file handle fh in the given mode. More... | |
| bool | open (int fd, OpenMode flags) |
| Opens the existing file descriptor fd in the given mode. More... | |
| bool | open (FILE *f, OpenMode ioFlags, FileHandleFlags handleFlags) |
| Opens the existing file handle fh in the given mode. More... | |
| bool | open (int fd, OpenMode ioFlags, FileHandleFlags handleFlags) |
| Opens the existing file descriptor fd in the given mode. More... | |
| Permissions | permissions () const |
| Returns the complete OR-ed together combination of QFile::Permission for the file. More... | |
| qint64 | pos () const |
| Reimplemented Function More... | |
| QFile () | |
| QFile (const QString &name) | |
| Constructs a new file object to represent the file with the given name. More... | |
| QFile (QObject *parent) | |
| Constructs a new file object with the given parent. More... | |
| QFile (const QString &name, QObject *parent) | |
| Constructs a new file object with the given parent to represent the file with the specified name. More... | |
| QString | readLink () const |
| Use symLinkTarget() instead. More... | |
| bool | remove () |
| Removes the file specified by fileName(). More... | |
| bool | rename (const QString &newName) |
| Renames the file currently specified by fileName() to newName. More... | |
| bool | resize (qint64 sz) |
| Sets the file size (in bytes) sz. More... | |
| bool | seek (qint64 offset) |
| For random-access devices, this function sets the current position to pos, returning true on success, or false if an error occurred. More... | |
| void | setFileName (const QString &name) |
| Sets the name of the file. More... | |
| bool | setPermissions (Permissions permissionSpec) |
| Sets the permissions for the file to the permissions specified. More... | |
| qint64 | size () const |
| Returns the size of the file. More... | |
| QString | symLinkTarget () const |
| Returns the absolute path of the file or directory a symlink (or shortcut on Windows) points to, or a an empty string if the object isn't a symbolic link. More... | |
| bool | unmap (uchar *address) |
| Unmaps the memory address. More... | |
| void | unsetError () |
| Sets the file's error to QFile::NoError. More... | |
| ~QFile () | |
| Destroys the file object, closing it if necessary. More... | |
| Public Functions inherited from QIODevice | |
| virtual qint64 | bytesAvailable () const |
| Returns the number of bytes that are available for reading. More... | |
| virtual qint64 | bytesToWrite () const |
| For buffered devices, this function returns the number of bytes waiting to be written. More... | |
| virtual bool | canReadLine () const |
| Returns true if a complete line of data can be read from the device; otherwise returns false. More... | |
| QString | errorString () const |
| Returns a human-readable description of the last device error that occurred. More... | |
| bool | getChar (char *c) |
| Reads one character from the device and stores it in c. More... | |
| bool | isOpen () const |
| Returns true if the device is open; otherwise returns false. More... | |
| bool | isReadable () const |
| Returns true if data can be read from the device; otherwise returns false. More... | |
| bool | isTextModeEnabled () const |
| Returns true if the Text flag is enabled; otherwise returns false. More... | |
| bool | isWritable () const |
| Returns true if data can be written to the device; otherwise returns false. More... | |
| OpenMode | openMode () const |
| Returns the mode in which the device has been opened; i.e. More... | |
| qint64 | peek (char *data, qint64 maxlen) |
| Reads at most maxSize bytes from the device into data, without side effects (i. More... | |
| QByteArray | peek (qint64 maxlen) |
| Peeks at most maxSize bytes from the device, returning the data peeked as a QByteArray. More... | |
| bool | putChar (char c) |
| Writes the character c to the device. More... | |
| QIODevice () | |
| Constructs a QIODevice object. More... | |
| QIODevice (QObject *parent) | |
| Constructs a QIODevice object with the given parent. More... | |
| qint64 | read (char *data, qint64 maxlen) |
| Reads at most maxSize bytes from the device into data, and returns the number of bytes read. More... | |
| QByteArray | read (qint64 maxlen) |
| Reads at most maxSize bytes from the device, and returns the data read as a QByteArray. More... | |
| QByteArray | readAll () |
| Reads all available data from the device, and returns it as a QByteArray. More... | |
| qint64 | readLine (char *data, qint64 maxlen) |
| This function reads a line of ASCII characters from the device, up to a maximum of maxSize - 1 bytes, stores the characters in data, and returns the number of bytes read. More... | |
| QByteArray | readLine (qint64 maxlen=0) |
| Reads a line from the device, but no more than maxSize characters, and returns the result as a QByteArray. More... | |
| virtual bool | reset () |
| Seeks to the start of input for random-access devices. More... | |
| void | setTextModeEnabled (bool enabled) |
| If enabled is true, this function sets the Text flag on the device; otherwise the Text flag is removed. More... | |
| void | ungetChar (char c) |
| Puts the character c back into the device, and decrements the current position unless the position is 0. More... | |
| virtual bool | waitForBytesWritten (int msecs) |
| For buffered devices, this function waits until a payload of buffered written data has been written to the device and the bytesWritten() signal has been emitted, or until msecs milliseconds have passed. More... | |
| virtual bool | waitForReadyRead (int msecs) |
| Blocks until new data is available for reading and the readyRead() signal has been emitted, or until msecs milliseconds have passed. More... | |
| qint64 | write (const char *data, qint64 len) |
| Writes at most maxSize bytes of data from data to the device. More... | |
| qint64 | write (const char *data) |
| Writes data from a zero-terminated string of 8-bit characters to the device. More... | |
| qint64 | write (const QByteArray &data) |
| Writes the content of byteArray to the device. More... | |
| virtual | ~QIODevice () |
| The destructor is virtual, and QIODevice is an abstract base class. More... | |
| Public Functions inherited from QObject | |
| bool | blockSignals (bool b) |
| If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More... | |
| const QObjectList & | children () const |
| Returns a list of child objects. More... | |
| bool | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| bool | disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0) |
| bool | disconnect (const QObject *receiver, const char *member=0) |
| void | dumpObjectInfo () |
| Dumps information about signal connections, etc. More... | |
| void | dumpObjectTree () |
| Dumps a tree of children to the debug output. More... | |
| QList< QByteArray > | dynamicPropertyNames () const |
| Returns the names of all properties that were dynamically added to the object using setProperty(). More... | |
| virtual bool | event (QEvent *) |
| This virtual function receives events to an object and should return true if the event e was recognized and processed. More... | |
| virtual bool | eventFilter (QObject *, QEvent *) |
| Filters events if this object has been installed as an event filter for the watched object. More... | |
| template<typename T > | |
| T | findChild (const QString &aName=QString()) const |
| Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More... | |
| template<typename T > | |
| QList< T > | findChildren (const QString &aName=QString()) const |
| Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More... | |
| template<typename T > | |
| QList< T > | findChildren (const QRegExp &re) const |
| bool | inherits (const char *classname) const |
| Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More... | |
| void | installEventFilter (QObject *) |
| Installs an event filter filterObj on this object. More... | |
| bool | isWidgetType () const |
| Returns true if the object is a widget; otherwise returns false. More... | |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. More... | |
| virtual const QMetaObject * | metaObject () const |
| Returns a pointer to the meta-object of this object. More... | |
| void | moveToThread (QThread *thread) |
| Changes the thread affinity for this object and its children. More... | |
| QString | objectName () const |
| QObject * | parent () const |
| Returns a pointer to the parent object. More... | |
| QVariant | property (const char *name) const |
| Returns the value of the object's name property. More... | |
| Q_INVOKABLE | QObject (QObject *parent=0) |
| Constructs an object with parent object parent. More... | |
| void | removeEventFilter (QObject *) |
| Removes an event filter object obj from this object. More... | |
| void | setObjectName (const QString &name) |
| void | setParent (QObject *) |
| Makes the object a child of parent. More... | |
| bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value. More... | |
| void | setUserData (uint id, QObjectUserData *data) |
| bool | signalsBlocked () const |
| Returns true if signals are blocked; otherwise returns false. More... | |
| int | startTimer (int interval) |
| Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More... | |
| QThread * | thread () const |
| Returns the thread in which the object lives. More... | |
| QObjectUserData * | userData (uint id) const |
| virtual | ~QObject () |
| Destroys the object, deleting all its child objects. More... | |
Static Public Functions | |
| static QTemporaryFile * | createLocalFile (const QString &fileName) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Works on the given fileName rather than an existing QFile object. More... | |
| static QTemporaryFile * | createLocalFile (QFile &file) |
| If file is not on a local disk, a temporary file is created on a local disk, file is copied into the temporary local file, and a pointer to the temporary local file is returned. More... | |
| Static Public Functions inherited from QFile | |
| static bool | copy (const QString &fileName, const QString &newName) |
| Copies the file fileName to newName. More... | |
| static QString | decodeName (const QByteArray &localFileName) |
| This does the reverse of QFile::encodeName() using localFileName. More... | |
| static QString | decodeName (const char *localFileName) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Returns the Unicode version of the given localFileName. More... | |
| static QByteArray | encodeName (const QString &fileName) |
| By default, this function converts fileName to the local 8-bit encoding determined by the user's locale. More... | |
| static bool | exists (const QString &fileName) |
| Returns true if the file specified by fileName exists; otherwise returns false. More... | |
| static bool | link (const QString &oldname, const QString &newName) |
| Creates a link named linkName that points to the file fileName. More... | |
| static Permissions | permissions (const QString &filename) |
| Returns the complete OR-ed together combination of QFile::Permission for fileName. More... | |
| static QString | readLink (const QString &fileName) |
| Use symLinkTarget() instead. More... | |
| static bool | remove (const QString &fileName) |
| Removes the file specified by the fileName given. More... | |
| static bool | rename (const QString &oldName, const QString &newName) |
| Renames the file oldName to newName. More... | |
| static bool | resize (const QString &filename, qint64 sz) |
| Sets fileName to size (in bytes) sz. More... | |
| static void | setDecodingFunction (DecoderFn) |
| Sets the function for decoding 8-bit file names. More... | |
| static void | setEncodingFunction (EncoderFn) |
| Sets the function for encoding Unicode file names. More... | |
| static bool | setPermissions (const QString &filename, Permissions permissionSpec) |
| Sets the permissions for fileName file to permissions. More... | |
| static QString | symLinkTarget (const QString &fileName) |
| Returns the absolute path of the file or directory referred to by the symlink (or shortcut on Windows) specified by fileName, or returns an empty string if the fileName does not correspond to a symbolic link. More... | |
| Static Public Functions inherited from QObject | |
| static bool | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More... | |
| static bool | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| Disconnects signal in object sender from method in object receiver. More... | |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| static uint | registerUserData () |
| static QString | tr (const char *sourceText, const char *comment=0, int n=-1) |
| static QString | trUtf8 (const char *sourceText, const char *comment=0, int n=-1) |
Protected Functions | |
| bool | open (OpenMode flags) |
| Creates a unique file name for the temporary file, and opens it. More... | |
| Protected Functions inherited from QFile | |
| QFile (QFilePrivate &dd, QObject *parent=0) | |
| qint64 | readData (char *data, qint64 maxlen) |
| Reimplemented Function More... | |
| qint64 | readLineData (char *data, qint64 maxlen) |
| Reimplemented Function More... | |
| qint64 | writeData (const char *data, qint64 len) |
| Reimplemented Function More... | |
| Protected Functions inherited from QIODevice | |
| QIODevice (QIODevicePrivate &dd, QObject *parent=0) | |
| void | setErrorString (const QString &errorString) |
| Sets the human readable description of the last device error that occurred to str. More... | |
| void | setOpenMode (OpenMode openMode) |
| Sets the OpenMode of the device to openMode. More... | |
| Protected Functions inherited from QObject | |
| virtual void | childEvent (QChildEvent *) |
| This event handler can be reimplemented in a subclass to receive child events. More... | |
| virtual void | connectNotify (const char *signal) |
| This virtual function is called when something has been connected to signal in this object. More... | |
| virtual void | customEvent (QEvent *) |
| This event handler can be reimplemented in a subclass to receive custom events. More... | |
| virtual void | disconnectNotify (const char *signal) |
| This virtual function is called when something has been disconnected from signal in this object. More... | |
| QObject (QObjectPrivate &dd, QObject *parent=0) | |
| int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal. More... | |
| QObject * | sender () const |
| Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More... | |
| int | senderSignalIndex () const |
| virtual void | timerEvent (QTimerEvent *) |
| This event handler can be reimplemented in a subclass to receive timer events for the object. More... | |
Friends | |
| class | QFile |
Additional Inherited Members | |
| Public Types inherited from QFile | |
| typedef QString(* | DecoderFn) (const QByteArray &localfileName) |
| This is a typedef for a pointer to a function with the following signature: More... | |
| typedef QByteArray(* | EncoderFn) (const QString &fileName) |
| This is a typedef for a pointer to a function with the following signature: More... | |
| enum | FileError { NoError = 0, ReadError = 1, WriteError = 2, FatalError = 3, ResourceError = 4, OpenError = 5, AbortError = 6, TimeOutError = 7, UnspecifiedError = 8, RemoveError = 9, RenameError = 10, PositionError = 11, ResizeError = 12, PermissionsError = 13, CopyError = 14 } |
| This enum describes the errors that may be returned by the error() function. More... | |
| enum | FileHandleFlag { AutoCloseHandle = 0x0001, DontCloseHandle = 0 } |
| This enum is used when opening a file to specify additional options which only apply to files and not to a generic QIODevice. More... | |
| enum | MemoryMapFlags { NoOptions = 0 } |
| This enum describes special options that may be used by the map() function. More... | |
| enum | Permission { ReadOwner = 0x4000, WriteOwner = 0x2000, ExeOwner = 0x1000, ReadUser = 0x0400, WriteUser = 0x0200, ExeUser = 0x0100, ReadGroup = 0x0040, WriteGroup = 0x0020, ExeGroup = 0x0010, ReadOther = 0x0004, WriteOther = 0x0002, ExeOther = 0x0001 } |
| This enum is used by the permission() function to report the permissions and ownership of a file. More... | |
| Public Types inherited from QIODevice | |
| enum | OpenModeFlag { NotOpen = 0x0000, ReadOnly = 0x0001, WriteOnly = 0x0002, ReadWrite = ReadOnly | WriteOnly, Append = 0x0004, Truncate = 0x0008, Text = 0x0010, Unbuffered = 0x0020 } |
| This enum is used with open() to describe the mode in which a device is opened. More... | |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| Schedules this object for deletion. More... | |
| Signals inherited from QIODevice | |
| void | aboutToClose () |
| This signal is emitted when the device is about to close. More... | |
| void | bytesWritten (qint64 bytes) |
| This signal is emitted every time a payload of data has been written to the device. More... | |
| void | readChannelFinished () |
| This signal is emitted when the input (reading) stream is closed in this device. More... | |
| void | readyRead () |
| This signal is emitted once every time new data is available for reading from the device. More... | |
| Signals inherited from QObject | |
| void | destroyed (QObject *=0) |
| This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More... | |
| Static Public Variables inherited from QObject | |
| static const QMetaObject | staticMetaObject |
| This variable stores the meta-object for the class. More... | |
| Protected Variables inherited from QObject | |
| QScopedPointer< QObjectData > | d_ptr |
| Static Protected Variables inherited from QObject | |
| static const QMetaObject | staticQtMetaObject |
| Related Functions inherited from QObject | |
| T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QRegExp ®Exp)() |
| T * | qobject_cast (QObject *object) |
| QObjectList | |
| void * | qt_find_obj_child (QObject *parent, const char *type, const QString &name) |
| Returns a pointer to the object named name that inherits type and with a given parent. More... | |
The QTemporaryFile class is an I/O device that operates on temporary files.
QTemporaryFile is used to create unique temporary files safely. The file itself is created by calling open(). The name of the temporary file is guaranteed to be unique (i.e., you are guaranteed to not overwrite an existing file), and the file will subsequently be removed upon destruction of the QTemporaryFile object. This is an important technique that avoids data corruption for applications that store data in temporary files. The file name is either auto-generated, or created based on a template, which is passed to QTemporaryFile's constructor.
Example:
Reopening a QTemporaryFile after calling close() is safe. For as long as the QTemporaryFile object itself is not destroyed, the unique temporary file will exist and be kept open internally by QTemporaryFile.
The file name of the temporary file can be found by calling fileName(). Note that this is only defined after the file is first opened; the function returns an empty string before this.
A temporary file will have some static part of the name and some part that is calculated to be unique. The default filename qt_temp will be placed into the temporary path as returned by QDir::tempPath(). If you specify your own filename, a relative file path will not be placed in the temporary directory by default, but be relative to the current working directory.
Specified filenames can contain the following template XXXXXX (six upper case "X" characters), which will be replaced by the auto-generated portion of the filename. Note that the template is case sensitive. If the template is not present in the filename, QTemporaryFile appends the generated part to the filename given.
Definition at line 62 of file qtemporaryfile.h.
| QTemporaryFile::QTemporaryFile | ( | ) |
Constructs a QTemporaryFile in QDir::tempPath(), using the file template "qt_temp.XXXXXX".
The file is stored in the system's temporary directory.
Definition at line 530 of file qtemporaryfile.cpp.
Referenced by createLocalFile(), and QTemporaryFilePrivate::~QTemporaryFilePrivate().
|
explicit |
Constructs a QTemporaryFile with a template filename of templateName.
Upon opening the temporary file this will be used to create a unique filename.
If the templateName does not contain XXXXXX it will automatically be appended and used as the dynamic portion of the filename.
If templateName is a relative path, the path will be relative to the current working directory. You can use QDir::tempPath() to construct templateName if you want use the system's temporary directory.
Definition at line 551 of file qtemporaryfile.cpp.
|
explicit |
Constructs a QTemporaryFile (with the given parent) in QDir::tempPath(), using the file template "qt_temp.XXXXXX".
Definition at line 564 of file qtemporaryfile.cpp.
Constructs a QTemporaryFile with a template filename of templateName and the specified parent.
Upon opening the temporary file this will be used to create a unique filename.
If the templateName does not contain XXXXXX it will automatically be appended and used as the dynamic portion of the filename.
If templateName is a relative path, the path will be relative to the current working directory. You can use QDir::tempPath() to construct templateName if you want use the system's temporary directory.
Definition at line 586 of file qtemporaryfile.cpp.
| QTemporaryFile::~QTemporaryFile | ( | ) |
Destroys the temporary file object, the file is automatically closed if necessary and if in auto remove mode it will automatically delete the file.
Definition at line 601 of file qtemporaryfile.cpp.
| bool QTemporaryFile::autoRemove | ( | ) | const |
Returns true if the QTemporaryFile is in auto remove mode.
Auto-remove mode will automatically delete the filename from disk upon destruction. This makes it very easy to create your QTemporaryFile object on the stack, fill it with data, read from it, and finally on function return it will automatically clean up after itself.
Auto-remove is on by default.
Definition at line 635 of file qtemporaryfile.cpp.
|
inlinestatic |
This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Works on the given fileName rather than an existing QFile object.
Definition at line 88 of file qtemporaryfile.h.
|
static |
If file is not on a local disk, a temporary file is created on a local disk, file is copied into the temporary local file, and a pointer to the temporary local file is returned.
If file is already on a local disk, a copy is not created and 0 is returned.
Definition at line 718 of file qtemporaryfile.cpp.
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virtual |
Reimplemented from QFile.
Definition at line 757 of file qtemporaryfile.cpp.
Referenced by fileName(), and open().
| QString QTemporaryFile::fileName | ( | ) | const |
Returns the complete unique filename backing the QTemporaryFile object.
This string is null before the QTemporaryFile is opened, afterwards it will contain the fileTemplate() plus additional characters to make it unique.
Definition at line 663 of file qtemporaryfile.cpp.
Referenced by registerFont(), and QSystemTrayIconPrivate::showMessage_sys().
| QString QTemporaryFile::fileTemplate | ( | ) | const |
Returns the set file template.
The default file template will be called qt_temp and be placed in QDir::tempPath().
Definition at line 677 of file qtemporaryfile.cpp.
|
inline |
A QTemporaryFile will always be opened in QIODevice::ReadWrite mode, this allows easy access to the data in the file.
This function will return true upon success and will set the fileName() to the unique filename used.
Definition at line 82 of file qtemporaryfile.h.
Referenced by createLocalFile(), QConfFile::isWritable(), open(), QNetworkDiskCache::prepare(), QPdf::ByteStream::prepareBuffer(), registerFont(), QSystemTrayIconPrivate::showMessage_sys(), and QNetworkDiskCachePrivate::storeItem().
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protectedvirtual |
Creates a unique file name for the temporary file, and opens it.
Reimplemented Function
You can get the unique name later by calling fileName(). The file is guaranteed to have been created by this function (i.e., it has never existed before).
Reimplemented from QFile.
Definition at line 779 of file qtemporaryfile.cpp.
| void QTemporaryFile::setAutoRemove | ( | bool | b | ) |
Sets the QTemporaryFile into auto-remove mode if b is true.
Auto-remove is on by default.
Definition at line 648 of file qtemporaryfile.cpp.
Referenced by QNetworkDiskCachePrivate::storeItem().
| void QTemporaryFile::setFileTemplate | ( | const QString & | name | ) |
Sets the static portion of the file name to name.
If the file template ends in XXXXXX that will automatically be replaced with the unique part of the filename, otherwise a filename will be determined automatically based on the static portion specified.
If name contains a relative file path, the path will be relative to the current working directory. You can use QDir::tempPath() to construct name if you want use the system's temporary directory.
Definition at line 695 of file qtemporaryfile.cpp.
Referenced by QFile::copy().
Definition at line 98 of file qtemporaryfile.h.