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Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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#include <qandroidapkfileengine.h>
Classes | |
struct | FileInfo |
Public Member Functions | |
QAndroidApkFileEngine (const QString &fileName) | |
~QAndroidApkFileEngine () | |
bool | open (QIODevice::OpenMode openMode, std::optional< QFile::Permissions > permissions) override |
Opens the file in the specified mode. | |
bool | close () override |
Closes the file, returning true if successful; otherwise returns false . | |
qint64 | size () const override |
Returns the size of the file. | |
qint64 | pos () const override |
Returns the current file position. | |
bool | seek (qint64 pos) override |
Sets the file position to the given offset. | |
qint64 | read (char *data, qint64 maxlen) override |
Reads a number of characters from the file into data. | |
FileFlags | fileFlags (FileFlags type=FileInfoAll) const override |
This function should return the set of OR'd flags that are true for the file engine's file, and that are in the type's OR'd members. | |
bool | caseSensitive () const override |
Should return true if the underlying file system is case-sensitive; otherwise return false. | |
QString | fileName (FileName file=DefaultName) const override |
Return the file engine's current file name in the format specified by file. | |
void | setFileName (const QString &file) override |
Sets the file engine's file name to file. | |
uchar * | map (qint64 offset, qint64 size, QFile::MemoryMapFlags flags) |
bool | extension (Extension extension, const ExtensionOption *option=nullptr, ExtensionReturn *output=nullptr) override |
bool | supportsExtension (Extension extension) const override |
IteratorUniquePtr | beginEntryList (const QString &, QDirListing::IteratorFlags filters, const QStringList &filterNames) override |
Returns a QAbstractFileEngine::IteratorUniquePtr, that can be used to iterate over the entries in path, using filters for entry filtering and filterNames for name filtering. | |
Public Member Functions inherited from QAbstractFileEngine | |
virtual | ~QAbstractFileEngine () |
Destroys the QAbstractFileEngine. | |
virtual bool | flush () |
Flushes the open file, returning true if successful; otherwise returns false. | |
virtual bool | syncToDisk () |
virtual bool | isSequential () const |
Returns true if the file is a sequential access device; returns false if the file is a direct access device. | |
virtual bool | remove () |
Requests that the file is deleted from the file system. | |
virtual bool | copy (const QString &newName) |
Copies the contents of this file to a file with the name newName. | |
virtual bool | rename (const QString &newName) |
Requests that the file be renamed to newName in the file system. | |
virtual bool | renameOverwrite (const QString &newName) |
virtual bool | link (const QString &newName) |
Creates a link from the file currently specified by fileName() to newName. | |
virtual bool | mkdir (const QString &dirName, bool createParentDirectories, std::optional< QFile::Permissions > permissions=std::nullopt) const |
Requests that the directory dirName be created with the specified permissions. | |
virtual bool | rmdir (const QString &dirName, bool recurseParentDirectories) const |
Requests that the directory dirName is deleted from the file system. | |
virtual bool | setSize (qint64 size) |
Requests that the file be set to size size. | |
virtual bool | isRelativePath () const |
Return true if the file referred to by this file engine has a relative path; otherwise return false. | |
virtual bool | setPermissions (uint perms) |
Requests that the file's permissions be set to perms. | |
virtual QByteArray | id () const |
virtual uint | ownerId (FileOwner) const |
If owner is OwnerUser return the ID of the user who owns the file. | |
virtual QString | owner (FileOwner) const |
If owner is OwnerUser return the name of the user who owns the file. | |
virtual bool | setFileTime (const QDateTime &newDate, QFile::FileTime time) |
virtual QDateTime | fileTime (QFile::FileTime time) const |
If time is BirthTime , return when the file was born (created). | |
virtual int | handle () const |
Returns the native file handle for this file engine. | |
virtual TriStateResult | cloneTo (QAbstractFileEngine *target) |
bool | atEnd () const |
uchar * | map (qint64 offset, qint64 size, QFile::MemoryMapFlags flags) |
bool | unmap (uchar *ptr) |
virtual IteratorUniquePtr | endEntryList () |
virtual qint64 | readLine (char *data, qint64 maxlen) |
This function reads one line, terminated by a '\n' character, from the file info data. | |
virtual qint64 | write (const char *data, qint64 len) |
Writes len bytes from data to the file. | |
QFile::FileError | error () const |
Returns the QFile::FileError that resulted from the last failed operation. | |
QString | errorString () const |
Returns the human-readable message appropriate to the current error reported by error(). |
Static Public Member Functions | |
static QString | apkPath () |
static QString | relativePath (const QString &filePath) |
Static Public Member Functions inherited from QAbstractFileEngine | |
static std::unique_ptr< QAbstractFileEngine > | create (const QString &fileName) |
Creates and returns a QAbstractFileEngine suitable for processing fileName. |
Additional Inherited Members | |
Public Types inherited from QAbstractFileEngine | |
enum | FileFlag { ReadOwnerPerm = 0x4000 , WriteOwnerPerm = 0x2000 , ExeOwnerPerm = 0x1000 , ReadUserPerm = 0x0400 , WriteUserPerm = 0x0200 , ExeUserPerm = 0x0100 , ReadGroupPerm = 0x0040 , WriteGroupPerm = 0x0020 , ExeGroupPerm = 0x0010 , ReadOtherPerm = 0x0004 , WriteOtherPerm = 0x0002 , ExeOtherPerm = 0x0001 , LinkType = 0x10000 , FileType = 0x20000 , DirectoryType = 0x40000 , BundleType = 0x80000 , HiddenFlag = 0x0100000 , LocalDiskFlag = 0x0200000 , ExistsFlag = 0x0400000 , RootFlag = 0x0800000 , Refresh = 0x1000000 , PermsMask = 0x0000FFFF , TypesMask = 0x000F0000 , FlagsMask = 0x0FF00000 , FileInfoAll = FlagsMask | PermsMask | TypesMask } |
The permissions and types of a file, suitable for OR'ing together. More... | |
enum | FileName { DefaultName , BaseName , PathName , AbsoluteName , AbsolutePathName , AbsoluteLinkTarget , CanonicalName , CanonicalPathName , BundleName , JunctionName , RawLinkPath , NFileNames } |
These values are used to request a file name in a particular format. More... | |
enum | FileOwner { OwnerUser , OwnerGroup } |
\value OwnerUser The user who owns the file. More... | |
enum class | TriStateResult : qint8 { NotSupported = -1 , Failed = 0 , Success = 1 } |
enum | Extension { AtEndExtension , FastReadLineExtension , MapExtension , UnMapExtension } |
typedef QAbstractFileEngineIterator | Iterator |
using | IteratorUniquePtr = std::unique_ptr<Iterator> |
Protected Member Functions inherited from QAbstractFileEngine | |
void | setError (QFile::FileError error, const QString &str) |
Sets the error type to error, and the error string to errorString. | |
QAbstractFileEngine () | |
Constructs a new QAbstractFileEngine that does not refer to any file or directory. | |
QAbstractFileEngine (QAbstractFileEnginePrivate &) | |
Protected Attributes inherited from QAbstractFileEngine | |
QScopedPointer< QAbstractFileEnginePrivate > | d_ptr |
Definition at line 15 of file qandroidapkfileengine.h.
QAndroidApkFileEngine::QAndroidApkFileEngine | ( | const QString & | fileName | ) |
Definition at line 56 of file qandroidapkfileengine.cpp.
References QAndroidApkFileEngine().
Referenced by QAndroidApkFileEngine().
QAndroidApkFileEngine::~QAndroidApkFileEngine | ( | ) |
Definition at line 70 of file qandroidapkfileengine.cpp.
References close().
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static |
Definition at line 75 of file qandroidapkfileengine.cpp.
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overridevirtual |
Returns a QAbstractFileEngine::IteratorUniquePtr, that can be used to iterate over the entries in path, using filters for entry filtering and filterNames for name filtering.
This function is called by QDirListing to initiate directory iteration.
Reimplemented from QAbstractFileEngine.
Definition at line 217 of file qandroidapkfileengine.cpp.
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inlineoverridevirtual |
Should return true if the underlying file system is case-sensitive; otherwise return false.
Reimplemented from QAbstractFileEngine.
Definition at line 35 of file qandroidapkfileengine.h.
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overridevirtual |
Closes the file, returning true if successful; otherwise returns false
.
The default implementation always returns false
.
Reimplemented from QAbstractFileEngine.
Definition at line 104 of file qandroidapkfileengine.cpp.
Referenced by ~QAndroidApkFileEngine().
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overridevirtual |
This virtual function can be reimplemented in a QAbstractFileEngine subclass to provide support for extensions. The option argument is provided as input to the extension, and this function can store output results in output.
The behavior of this function is determined by extension; see the Extension documentation for details.
You can call supportsExtension() to check if an extension is supported by the file engine.
By default, no extensions are supported, and this function returns false
.
Reimplemented from QAbstractFileEngine.
Definition at line 197 of file qandroidapkfileengine.cpp.
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overridevirtual |
This function should return the set of OR'd flags that are true for the file engine's file, and that are in the type's OR'd members.
In your reimplementation you can use the type argument as an optimization hint and only return the OR'd set of members that are true and that match those in type; in other words you can ignore any members not mentioned in type, thus avoiding some potentially expensive lookups or system calls.
Reimplemented from QAbstractFileEngine.
Definition at line 140 of file qandroidapkfileengine.cpp.
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overridevirtual |
Return the file engine's current file name in the format specified by file.
If you don't handle some FileName
possibilities, return the file name set in setFileName() when an unhandled format is requested.
Reimplemented from QAbstractFileEngine.
Definition at line 153 of file qandroidapkfileengine.cpp.
Definition at line 177 of file qandroidapkfileengine.cpp.
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overridevirtual |
Opens the file in the specified mode.
Returns true
if the file was successfully opened; otherwise returns false
.
The mode is an OR combination of QIODevice::OpenMode and QIODevice::HandlingMode values.
If the file is created as a result of this call, its permissions are set according to permissision. Null value means an implementation- specific default.
Reimplemented from QAbstractFileEngine.
Definition at line 87 of file qandroidapkfileengine.cpp.
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overridevirtual |
Returns the current file position.
This is the position of the data read/write head of the file.
Reimplemented from QAbstractFileEngine.
Definition at line 114 of file qandroidapkfileengine.cpp.
Reads a number of characters from the file into data.
At most maxlen characters will be read.
Returns -1 if a fatal error occurs, or 0 if there are no bytes to read.
Reimplemented from QAbstractFileEngine.
Definition at line 124 of file qandroidapkfileengine.cpp.
Definition at line 81 of file qandroidapkfileengine.cpp.
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overridevirtual |
Sets the file position to the given offset.
Returns true
if the position was successfully set; otherwise returns false
.
The offset is from the beginning of the file, unless the file is sequential.
Reimplemented from QAbstractFileEngine.
Definition at line 119 of file qandroidapkfileengine.cpp.
Sets the file engine's file name to file.
This file name is the file that the rest of the virtual functions will operate on.
Reimplemented from QAbstractFileEngine.
Definition at line 170 of file qandroidapkfileengine.cpp.
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overridevirtual |
Returns the size of the file.
Reimplemented from QAbstractFileEngine.
Definition at line 109 of file qandroidapkfileengine.cpp.
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overridevirtual |
This virtual function returns true
if the file engine supports extension; otherwise, false is returned. By default, no extensions are supported.
Reimplemented from QAbstractFileEngine.
Definition at line 209 of file qandroidapkfileengine.cpp.