QDir Class Reference

The QDir class provides access to directory structures and their contents. More...

#include <qdir.h>

Public Types
enum	Filter {   Dirs = 0x001, Files = 0x002, Drives = 0x004, NoSymLinks = 0x008,   AllEntries = Dirs | Files | Drives, TypeMask = 0x00f, Readable = 0x010, Writable = 0x020,   Executable = 0x040, PermissionMask = 0x070, Modified = 0x080, Hidden = 0x100,   System = 0x200, AccessMask = 0x3F0, AllDirs = 0x400, CaseSensitive = 0x800,   NoDotAndDotDot = 0x1000, NoDot = 0x2000, NoDotDot = 0x4000, NoFilter = -1 }
	This enum describes the filtering options available to QDir; e. More...
enum	SortFlag {   Name = 0x00, Time = 0x01, Size = 0x02, Unsorted = 0x03,   SortByMask = 0x03, DirsFirst = 0x04, Reversed = 0x08, IgnoreCase = 0x10,   DirsLast = 0x20, LocaleAware = 0x40, Type = 0x80, NoSort = -1 }
	This enum describes the sort options available to QDir, e. More...

Public Functions
QString	absoluteFilePath (const QString &fileName) const
	Returns the absolute path name of a file in the directory. More...
QString	absolutePath () const
	Returns the absolute path (a path that starts with "/" or with a drive specification), which may contain symbolic links, but never contains redundant ".", ".." or multiple separators. More...
QString	canonicalPath () const
	Returns the canonical path, i.e. More...
bool	cd (const QString &dirName)
	Changes the QDir's directory to dirName. More...
bool	cdUp ()
	Changes directory by moving one directory up from the QDir's current directory. More...
uint	count () const
	Returns the total number of directories and files in the directory. More...
QString	dirName () const
	Returns the name of the directory; this is not the same as the path, e.g. More...
QFileInfoList	entryInfoList (Filters filters=NoFilter, SortFlags sort=NoSort) const
	Returns a list of QFileInfo objects for all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting(). More...
QFileInfoList	entryInfoList (const QStringList &nameFilters, Filters filters=NoFilter, SortFlags sort=NoSort) const
	Returns a list of QFileInfo objects for all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting(). More...
QStringList	entryList (Filters filters=NoFilter, SortFlags sort=NoSort) const
	Returns a list of the names of all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting(). More...
QStringList	entryList (const QStringList &nameFilters, Filters filters=NoFilter, SortFlags sort=NoSort) const
	Returns a list of the names of all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting(). More...
bool	exists () const
	Returns true if the directory exists; otherwise returns false. More...
bool	exists (const QString &name) const
	Returns true if the file called name exists; otherwise returns false. More...
QString	filePath (const QString &fileName) const
	Returns the path name of a file in the directory. More...
Filters	filter () const
	Returns the value set by setFilter() More...
bool	isAbsolute () const
	Returns true if the directory's path is absolute; otherwise returns false. More...
bool	isReadable () const
	Returns true if the directory is readable and we can open files by name; otherwise returns false. More...
bool	isRelative () const
	Returns true if the directory path is relative; otherwise returns false. More...
bool	isRoot () const
	Returns true if the directory is the root directory; otherwise returns false. More...
bool	makeAbsolute ()
	Converts the directory path to an absolute path. More...
bool	mkdir (const QString &dirName) const
	Creates a sub-directory called dirName. More...
bool	mkpath (const QString &dirPath) const
	Creates the directory path dirPath. More...
QStringList	nameFilters () const
	Returns the string list set by setNameFilters() More...
bool	operator!= (const QDir &dir) const
	Returns true if directory dir and this directory have different paths or different sort or filter settings; otherwise returns false. More...
QDir &	operator= (const QDir &)
	Makes a copy of the dir object and assigns it to this QDir object. More...
QDir &	operator= (const QString &path)
	Sets the directory path to the given path. More...
bool	operator== (const QDir &dir) const
	Returns true if directory dir and this directory have the same path and their sort and filter settings are the same; otherwise returns false. More...
QString	operator[] (int) const
	Returns the file name at position pos in the list of file names. More...
QString	path () const
	Returns the path. More...
	QDir (const QDir &)
	Constructs a QDir object that is a copy of the QDir object for directory dir. More...
	QDir (const QString &path=QString())
	Constructs a QDir pointing to the given directory path. More...
	QDir (const QString &path, const QString &nameFilter, SortFlags sort=SortFlags(Name|IgnoreCase), Filters filter=AllEntries)
	Constructs a QDir with path path, that filters its entries by name using nameFilter and by attributes using filters. More...
void	refresh () const
	Refreshes the directory information. More...
QString	relativeFilePath (const QString &fileName) const
	Returns the path to fileName relative to the directory. More...
bool	remove (const QString &fileName)
	Removes the file, fileName. More...
bool	rename (const QString &oldName, const QString &newName)
	Renames a file or directory from oldName to newName, and returns true if successful; otherwise returns false. More...
bool	rmdir (const QString &dirName) const
	Removes the directory specified by dirName. More...
bool	rmpath (const QString &dirPath) const
	Removes the directory path dirPath. More...
void	setFilter (Filters filter)
	Sets the filter used by entryList() and entryInfoList() to filters. More...
void	setNameFilters (const QStringList &nameFilters)
	Sets the name filters used by entryList() and entryInfoList() to the list of filters specified by nameFilters. More...
void	setPath (const QString &path)
	Sets the path of the directory to path. More...
void	setSorting (SortFlags sort)
	Sets the sort order used by entryList() and entryInfoList(). More...
SortFlags	sorting () const
	Returns the value set by setSorting() More...
	~QDir ()
	Destroys the QDir object frees up its resources. More...

Static Public Functions
static void	addResourceSearchPath (const QString &path)
	Use QDir::addSearchPath() with a prefix instead. More...
static void	addSearchPath (const QString &prefix, const QString &path)
static QString	cleanPath (const QString &path)
	Removes all multiple directory separators "/" and resolves any "."s or ".."s found in the path, path. More...
static QT_DEPRECATED QString	convertSeparators (const QString &pathName)
	Use QDir::toNativeSeparators() instead. More...
static QDir	current ()
	Returns the application's current directory. More...
static QString	currentPath ()
	Returns the absolute path of the application's current directory. More...
static QFileInfoList	drives ()
	Returns a list of the root directories on this system. More...
static QString	fromNativeSeparators (const QString &pathName)
	Returns pathName using '/' as file separator. More...
static QDir	home ()
	Returns the user's home directory. More...
static QString	homePath ()
	Returns the absolute path of the user's home directory. More...
static bool	isAbsolutePath (const QString &path)
	Returns true if path is absolute; returns false if it is relative. More...
static bool	isRelativePath (const QString &path)
	Returns true if path is relative; returns false if it is absolute. More...
static bool	match (const QStringList &filters, const QString &fileName)
	Returns true if the fileName matches any of the wildcard (glob) patterns in the list of filters; otherwise returns false. More...
static bool	match (const QString &filter, const QString &fileName)
	Returns true if the fileName matches the wildcard (glob) pattern filter; otherwise returns false. More...
static QStringList	nameFiltersFromString (const QString &nameFilter)
	Returns a list of name filters from the given nameFilter. More...
static QDir	root ()
	Returns the root directory. More...
static QString	rootPath ()
	Returns the absolute path of the root directory. More...
static QStringList	searchPaths (const QString &prefix)
static QChar	separator ()
	Returns the native directory separator: "/" under Unix (including Mac OS X) and "\\" under Windows. More...
static bool	setCurrent (const QString &path)
	Sets the application's current working directory to path. More...
static void	setSearchPaths (const QString &prefix, const QStringList &searchPaths)
static QDir	temp ()
	Returns the system's temporary directory. More...
static QString	tempPath ()
	Returns the absolute path of the system's temporary directory. More...
static QString	toNativeSeparators (const QString &pathName)
	Returns pathName with the '/' separators converted to separators that are appropriate for the underlying operating system. More...

Protected Variables
QSharedDataPointer< QDirPrivate >	d_ptr

Detailed Description

The QDir class provides access to directory structures and their contents.

Note

This class or function is reentrant.

A QDir is used to manipulate path names, access information regarding paths and files, and manipulate the underlying file system. It can also be used to access Qt's resource system.

Qt uses "/" as a universal directory separator in the same way that "/" is used as a path separator in URLs. If you always use "/" as a directory separator, Qt will translate your paths to conform to the underlying operating system.

A QDir can point to a file using either a relative or an absolute path. Absolute paths begin with the directory separator (optionally preceded by a drive specification under Windows). Relative file names begin with a directory name or a file name and specify a path relative to the current directory.

Examples of absolute paths:

QDir("/home/user/Documents")
QDir("C:/Documents and Settings")

On Windows, the second example above will be translated to C:/Documents and Settings when used to access files.

Examples of relative paths:

QDir("images/landscape.png")

You can use the isRelative() or isAbsolute() functions to check if a QDir is using a relative or an absolute file path. Call makeAbsolute() to convert a relative QDir to an absolute one.

Navigation and Directory Operations

A directory's path can be obtained with the path() function, and a new path set with the setPath() function. The absolute path to a directory is found by calling absolutePath().

The name of a directory is found using the dirName() function. This typically returns the last element in the absolute path that specifies the location of the directory. However, it can also return "." if the QDir represents the current directory.

QDir("Documents/Letters/Applications").dirName() // "Applications"
QDir().dirName()                                 // "."

The path for a directory can also be changed with the cd() and cdUp() functions, both of which operate like familiar shell commands. When cd() is called with the name of an existing directory, the QDir object changes directory so that it represents that directory instead. The cdUp() function changes the directory of the QDir object so that it refers to its parent directory; i.e. cd("..") is equivalent to cdUp().

Directories can be created with mkdir(), renamed with rename(), and removed with rmdir().

You can test for the presence of a directory with a given name by using exists(), and the properties of a directory can be tested with isReadable(), isAbsolute(), isRelative(), and isRoot().

The refresh() function re-reads the directory's data from disk.

Files and Directory Contents

Directories contain a number of entries, representing files, directories, and symbolic links. The number of entries in a directory is returned by count(). A string list of the names of all the entries in a directory can be obtained with entryList(). If you need information about each entry, use entryInfoList() to obtain a list of QFileInfo objects.

Paths to files and directories within a directory can be constructed using filePath() and absoluteFilePath(). The filePath() function returns a path to the specified file or directory relative to the path of the QDir object; absoluteFilePath() returns an absolute path to the specified file or directory. Neither of these functions checks for the existence of files or directory; they only construct paths.

QDir directory("Documents/Letters");
QString path = directory.filePath("contents.txt");
QString absolutePath = directory.absoluteFilePath("contents.txt");

Files can be removed by using the remove() function. Directories cannot be removed in the same way as files; use rmdir() to remove them instead.

It is possible to reduce the number of entries returned by entryList() and entryInfoList() by applying filters to a QDir object. You can apply a name filter to specify a pattern with wildcards that file names need to match, an attribute filter that selects properties of entries and can distinguish between files and directories, and a sort order.

Name filters are lists of strings that are passed to setNameFilters(). Attribute filters consist of a bitwise OR combination of Filters, and these are specified when calling setFilter(). The sort order is specified using setSorting() with a bitwise OR combination of SortFlags.

You can test to see if a filename matches a filter using the match() function.

Filter and sort order flags may also be specified when calling entryList() and entryInfoList() in order to override previously defined behavior.

The Current Directory and Other Special Paths

Access to some common directories is provided with a number of static functions that return QDir objects. There are also corresponding functions for these that return strings:

QDir	QString	Return Value
current()	currentPath()	The application's working directory
home()	homePath()	The user's home directory
root()	rootPath()	The root directory
temp()	tempPath()	The system's temporary directory

The setCurrent() static function can also be used to set the application's working directory.

If you want to find the directory containing the application's executable, see QCoreApplication::applicationDirPath().

The drives() static function provides a list of root directories for each device that contains a filing system. On Unix systems this returns a list containing a single root directory "/"; on Windows the list will usually contain C:/, and possibly other drive letters such as D:/, depending on the configuration of the user's system.

Path Manipulation and Strings

Paths containing "." elements that reference the current directory at that point in the path, ".." elements that reference the parent directory, and symbolic links can be reduced to a canonical form using the canonicalPath() function.

Paths can also be simplified by using cleanPath() to remove redundant "/" and ".." elements.

It is sometimes necessary to be able to show a path in the native representation for the user's platform. The static toNativeSeparators() function returns a copy of the specified path in which each directory separator is replaced by the appropriate separator for the underlying operating system.

Examples

Check if a directory exists:

QDir dir("example");
if (!dir.exists())
    qWarning("Cannot find the example directory");

(We could also use the static convenience function QFile::exists().)

Traversing directories and reading a file:

QDir dir = QDir::root();                 // "/"
if (!dir.cd("tmp")) {                    // "/tmp"
    qWarning("Cannot find the \"/tmp\" directory");
} else {
    QFile file(dir.filePath("ex1.txt")); // "/tmp/ex1.txt"
    if (!file.open(QIODevice::ReadWrite))
        qWarning("Cannot create the file %s", file.name());
}

A program that lists all the files in the current directory (excluding symbolic links), sorted by size, smallest first:

#include <QDir>
#include <iostream>

int main(int argc, char *argv[])
{
    QCoreApplication app(argc, argv);
    QDir dir;
    dir.setFilter(QDir::Files | QDir::Hidden | QDir::NoSymLinks);
    dir.setSorting(QDir::Size | QDir::Reversed);

    QFileInfoList list = dir.entryInfoList();
    std::cout << "     Bytes Filename" << std::endl;
    for (int i = 0; i < list.size(); ++i) {
        QFileInfo fileInfo = list.at(i);
        std::cout << qPrintable(QString("%1 %2").arg(fileInfo.size(), 10)
                                                .arg(fileInfo.fileName()));
        std::cout << std::endl;
    }
    return 0;
}

See also

QFileInfo, QFile, QFileDialog, QApplication::applicationDirPath(), {Find Files Example}

Definition at line 58 of file qdir.h.

Enumerations

Filter

enum QDir::Filter

This enum describes the filtering options available to QDir; e.

g. for entryList() and entryInfoList(). The filter value is specified by combining values from the following list using the bitwise OR operator:

• Dirs List directories that match the filters.
• AllDirs List all directories; i.e. don't apply the filters to directory names.
• Files List files.
• Drives List disk drives (ignored under Unix).
• NoSymLinks Do not list symbolic links (ignored by operating systems that don't support symbolic links).
• NoDotAndDotDot Do not list the special entries "." and "..".
• NoDot Do not list the special entry ".".
• NoDotDot Do not list the special entry "..".
• AllEntries List directories, files, drives and symlinks (this does not list broken symlinks unless you specify System).
• Readable List files for which the application has read access. The Readable value needs to be combined with Dirs or Files.
• Writable List files for which the application has write access. The Writable value needs to be combined with Dirs or Files.
• Executable List files for which the application has execute access. The Executable value needs to be combined with Dirs or Files.
• Modified Only list files that have been modified (ignored on Unix).
• Hidden List hidden files (on Unix, files starting with a ".").
• System List system files (on Unix, FIFOs, sockets and device files are included; on Windows, {.lnk} files are included)
• CaseSensitive The filter should be case sensitive.

• DefaultFilter
• TypeMask
• All
• RWEMask
• AccessMask
• PermissionMask
• NoFilter

Functions that use Filter enum values to filter lists of files and directories will include symbolic links to files and directories unless you set the NoSymLinks value.

A default constructed QDir will not filter out files based on their permissions, so entryList() and entryInfoList() will return all files that are readable, writable, executable, or any combination of the three. This makes the default easy to write, and at the same time useful.

For example, setting the Readable, Writable, and Files flags allows all files to be listed for which the application has read access, write access or both. If the Dirs and Drives flags are also included in this combination then all drives, directories, all files that the application can read, write, or execute, and symlinks to such files/directories can be listed.

To retrieve the permissons for a directory, use the entryInfoList() function to get the associated QFileInfo objects and then use the QFileInfo::permissons() to obtain the permissions and ownership for each file.

Enumerator
Dirs
Files
Drives
NoSymLinks
AllEntries
TypeMask
Readable
Writable
Executable
PermissionMask
Modified
Hidden
System
AccessMask
AllDirs
CaseSensitive
NoDotAndDotDot
NoDot
NoDotDot
NoFilter

Definition at line 64 of file qdir.h.

                { Dirs        = 0x001,
                  Files       = 0x002,
                  Drives      = 0x004,
                  NoSymLinks  = 0x008,
                  AllEntries  = Dirs | Files | Drives,
                  TypeMask    = 0x00f,
#ifdef QT3_SUPPORT
                  All         = AllEntries,
#endif

                  Readable    = 0x010,
                  Writable    = 0x020,
                  Executable  = 0x040,
                  PermissionMask    = 0x070,
#ifdef QT3_SUPPORT
                  RWEMask     = 0x070,
#endif

                  Modified    = 0x080,
                  Hidden      = 0x100,
                  System      = 0x200,

                  AccessMask  = 0x3F0,

                  AllDirs       = 0x400,
                  CaseSensitive = 0x800,
                  NoDotAndDotDot = 0x1000, // ### Qt5 NoDotAndDotDot = NoDot|NoDotDot
                  NoDot         = 0x2000,
                  NoDotDot      = 0x4000,

                  NoFilter = -1
#ifdef QT3_SUPPORT
                  ,DefaultFilter = NoFilter
#endif
    };

SortFlag

enum QDir::SortFlag

This enum describes the sort options available to QDir, e.

g. for entryList() and entryInfoList(). The sort value is specified by OR-ing together values from the following list:

• Name Sort by name.
• Time Sort by time (modification time).
• Size Sort by file size.
• Type Sort by file type (extension).
• Unsorted Do not sort.
• NoSort Not sorted by default.

• DirsFirst Put the directories first, then the files.
• DirsLast Put the files first, then the directories.
• Reversed Reverse the sort order.
• IgnoreCase Sort case-insensitively.
• LocaleAware Sort items appropriately using the current locale settings.

• SortByMask
• DefaultSort

You can only specify one of the first four.

If you specify both DirsFirst and Reversed, directories are still put first, but in reverse order; the files will be listed after the directories, again in reverse order.

Enumerator
Name
Time
Size
Unsorted
SortByMask
DirsFirst
Reversed
IgnoreCase
DirsLast
LocaleAware
Type
NoSort

Definition at line 104 of file qdir.h.

                  { Name        = 0x00,
                    Time        = 0x01,
                    Size        = 0x02,
                    Unsorted    = 0x03,
                    SortByMask  = 0x03,

                    DirsFirst   = 0x04,
                    Reversed    = 0x08,
                    IgnoreCase  = 0x10,
                    DirsLast    = 0x20,
                    LocaleAware = 0x40, 
                    Type        = 0x80,
                    NoSort = -1
#ifdef QT3_SUPPORT
                  ,DefaultSort = NoSort
#endif
    };

Constructors and Destructors

QDir() [1/3]

QDir::QDir

(

const QDir &

dir

)

Constructs a QDir object that is a copy of the QDir object for directory dir.

See also

operator=()

Definition at line 561 of file qdir.cpp.

    : d_ptr(dir.d_ptr)
{
}

QDir() [2/3]

QDir::QDir

(

const QString &

path = QString()

)

Constructs a QDir pointing to the given directory path.

If path is empty the program's working directory, ("."), is used.

See also

currentPath()

Definition at line 527 of file qdir.cpp.

                              : d_ptr(new QDirPrivate(path))
{
}

QDir() [3/3]

QDir::QDir	(	const QString &	path,
		const QString &	nameFilter,
		SortFlags	sort = SortFlags(Name | IgnoreCase),
		Filters	filters = AllEntries
	)

Constructs a QDir with path path, that filters its entries by name using nameFilter and by attributes using filters.

It also sorts the names using sort.

The default nameFilter is an empty string, which excludes nothing; the default filters is AllEntries , which also means exclude nothing. The default sort is Name | IgnoreCase , i.e. sort by name case-insensitively.

If path is an empty string, QDir uses "." (the current directory). If nameFilter is an empty string, QDir uses the name filter "*" (all files).

Note that path need not exist.

See also

exists(), setPath(), setNameFilter(), setFilter(), setSorting()

Definition at line 549 of file qdir.cpp.

    : d_ptr(new QDirPrivate(path, QDir::nameFiltersFromString(nameFilter), sort, filters))
{
}

~QDir()

QDir::~QDir

(

)

Destroys the QDir object frees up its resources.

This has no effect on the underlying directory in the file system.

Definition at line 570 of file qdir.cpp.

{
}

Functions

absoluteFilePath()

QString QDir::absoluteFilePath

(

const QString &

fileName

)

const

Returns the absolute path name of a file in the directory.

Does not check if the file actually exists in the directory; but see exists(). Redundant multiple separators or "." and ".." directories in fileName are not removed (see cleanPath()).

See also

relativeFilePath() filePath() canonicalPath()

Definition at line 701 of file qdir.cpp.

Referenced by QCoreApplication::applicationFilePath(), initializeDb(), QDeclarativeDebugServerPrivate::loadConnectionPlugin(), QDeclarativeInspectorService::loadInspectorPlugin(), QBasicUnixFontDatabase::populateFontDatabase(), QPlatformFontDatabase::populateFontDatabase(), and QDeclarativeImportDatabase::resolvePlugin().

{
    const QDirPrivate* d = d_ptr.constData();
    if (isAbsolutePath(fileName))
        return fileName;

    d->resolveAbsoluteEntry();
    if (fileName.isEmpty())
        return d->absoluteDirEntry.filePath();
    if (!d->absoluteDirEntry.isRoot())
        return d->absoluteDirEntry.filePath() % QLatin1Char('/') % fileName;
    return d->absoluteDirEntry.filePath() % fileName;
}

absolutePath()

QString QDir::absolutePath

(

)

const

Returns the absolute path (a path that starts with "/" or with a drive specification), which may contain symbolic links, but never contains redundant ".", ".." or multiple separators.

See also

setPath(), canonicalPath(), exists(), cleanPath(), dirName(), absoluteFilePath()

Definition at line 619 of file qdir.cpp.

Referenced by QDirModel::index(), makeAbsolute(), QDirModel::mkdir(), QFileSystemModel::mkdir(), QFileSystemModelPrivate::node(), QMovie::QMovie(), relativeFilePath(), QDeclarativeImportDatabase::resolvePlugin(), QNetworkDiskCache::setCacheDirectory(), QFileDialog::setDirectory(), and QMovie::setFileName().

{
    const QDirPrivate* d = d_ptr.constData();
    d->resolveAbsoluteEntry();
    return d->absoluteDirEntry.filePath();
}

addResourceSearchPath()

void QDir::addResourceSearchPath ( const QString &  path )

static

Use QDir::addSearchPath() with a prefix instead.

Adds path to the search paths searched in to find resources that are not specified with an absolute path. The default search path is to search only in the root (:/).

See also

{The Qt Resource System}

Definition at line 989 of file qdir.cpp.

{
#ifdef QT_BUILD_CORE_LIB
    QResource::addSearchPath(path);
#else
    Q_UNUSED(path)
#endif
}

addSearchPath()

static void QDir::addSearchPath ( const QString &  prefix, const QString &  path  )

static

Referenced by addResourceSearchPath().

canonicalPath()

QString QDir::canonicalPath

(

)

const

Returns the canonical path, i.e.

a path without symbolic links or redundant "." or ".." elements.

On systems that do not have symbolic links this function will always return the same string that absolutePath() returns. If the canonical path does not exist (normally due to dangling symbolic links) canonicalPath() returns an empty string.

Example:

QString bin = "/local/bin";         // where /local/bin is a symlink to /usr/bin
QDir binDir(bin);
QString canonicalBin = binDir.canonicalPath();
// canonicalBin now equals "/usr/bin"

QString ls = "/local/bin/ls";       // where ls is the executable "ls"
QDir lsDir(ls);
QString canonicalLs = lsDir.canonicalPath();
// canonicalLS now equals "/usr/bin/ls".

See also

path(), absolutePath(), exists(), cleanPath(), dirName(), absoluteFilePath()

Definition at line 642 of file qdir.cpp.

Referenced by QDeclarativeImportDatabase::addImportPath(), QCoreApplication::addLibraryPath(), QDeclarativeImportDatabase::addPluginPath(), QCoreApplicationPrivate::appendApplicationPathToLibraryPaths(), QScriptEngine::importExtension(), QCoreApplication::libraryPaths(), operator==(), QDeclarativeImportDatabase::QDeclarativeImportDatabase(), QCoreApplication::removeLibraryPath(), and QCoreApplication::setApplicationVersion().

{
    const QDirPrivate* d = d_ptr.constData();
    if (d->fileEngine.isNull()) {
        QFileSystemEntry answer = QFileSystemEngine::canonicalName(d->dirEntry, d->metaData);
        return answer.filePath();
    }
    return d->fileEngine->fileName(QAbstractFileEngine::CanonicalName);
}

cd()

bool QDir::cd

(

const QString &

dirName

)

Changes the QDir's directory to dirName.

Returns true if the new directory exists and is readable; otherwise returns false. Note that the logical cd() operation is not performed if the new directory does not exist.

Calling cd("..") is equivalent to calling cdUp().

See also

cdUp(), isReadable(), exists(), path()

Definition at line 880 of file qdir.cpp.

Referenced by cdUp(), and QScriptEngine::importExtension().

{
    // Don't detach just yet.
    const QDirPrivate * const d = d_ptr.constData();

    if (dirName.isEmpty() || dirName == QLatin1String("."))
        return true;
    QString newPath;
    if (isAbsolutePath(dirName)) {
        newPath = cleanPath(dirName);
    } else {
        if (isRoot()) {
            if (dirName == QLatin1String(".."))
                return false;
            newPath = d->dirEntry.filePath();
        } else {
            newPath = d->dirEntry.filePath() % QLatin1Char('/');
        }

        newPath += dirName;
        if (dirName.indexOf(QLatin1Char('/')) >= 0
            || dirName == QLatin1String("..")
            || d->dirEntry.filePath() == QLatin1String(".")) {
            newPath = cleanPath(newPath);
            /*
              If newPath starts with .., we convert it to absolute to
              avoid infinite looping on

                  QDir dir(".");
                  while (dir.cdUp())
                      ;
            */
            if (newPath.startsWith(QLatin1String(".."))) {
                newPath = QFileInfo(newPath).absoluteFilePath();
            }
        }
    }

    QScopedPointer<QDirPrivate> dir(new QDirPrivate(*d_ptr.constData()));
    dir->setPath(newPath);
    if (!dir->exists())
        return false;

    d_ptr = dir.take();
    return true;
}

cdUp()

bool QDir::cdUp

(

)

Changes directory by moving one directory up from the QDir's current directory.

Returns true if the new directory exists and is readable; otherwise returns false. Note that the logical cdUp() operation is not performed if the new directory does not exist.

See also

cd(), isReadable(), exists(), path()

Definition at line 937 of file qdir.cpp.

Referenced by QDnotifyFileSystemWatcherEngine::addPaths(), QFileSystemEngine::getLinkTarget(), QDirModel::mkdir(), and QDeclarativeFolderListModel::setFolder().

{
    return cd(QString::fromLatin1(".."));
}

cleanPath()

QString QDir::cleanPath ( const QString &  path )

static

Removes all multiple directory separators "/" and resolves any "."s or ".."s found in the path, path.

Symbolic links are kept. This function does not return the canonical path, but rather the simplest version of the input. For example, "./local" becomes "local", "local/../bin" becomes "bin" and "/local/usr/../bin" becomes "/local/bin".

See also

absolutePath() canonicalPath()

Definition at line 2082 of file qdir.cpp.

Referenced by _q_resolveEntryAndCreateLegacyEngine_recursive(), _qt_get_directory(), QFileSystemEngine::absoluteName(), QUrlModel::addUrls(), QCoreApplication::applicationFilePath(), QFileSystemEngine::canonicalName(), cd(), cleanPath(), QFileSystemEngine::createDirectory(), QDirModel::filePath(), QLibraryInfoPrivate::findConfiguration(), QFileSystemEngine::getLinkTarget(), QFileSystemEngine::homePath(), isDirPath(), QLibraryInfo::location(), QFSFileEnginePrivate::longFileName(), QFileSystemEngine::nativeAbsoluteFilePath(), qt_resource_fixResourceRoot(), QFactoryLoader::refreshAll(), relativeFilePath(), QFileSystemEngine::removeDirectory(), QCoreApplication::removeLibraryPath(), QDirPrivate::resolveAbsoluteEntry(), QFileDialog::setDirectory(), QPluginLoader::setFileName(), QFileSystemModel::setRootPath(), QFileSystemEngine::slowCanonicalized(), QFileSystemEngine::tempPath(), and QFactoryLoader::updateDir().

{
    if (path.isEmpty())
        return path;
    QString name = path;
    QChar dir_separator = separator();
    if (dir_separator != QLatin1Char('/'))
       name.replace(dir_separator, QLatin1Char('/'));

    int used = 0, levels = 0;
    const int len = name.length();
    QVarLengthArray<QChar> outVector(len);
    QChar *out = outVector.data();

    const QChar *p = name.unicode();
    for (int i = 0, last = -1, iwrite = 0; i < len; ++i) {
        if (p[i] == QLatin1Char('/')) {
            while (i+1 < len && p[i+1] == QLatin1Char('/')) {
#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) //allow unc paths
                if (!i)
                    break;
#endif
                i++;
            }
            bool eaten = false;
            if (i+1 < len && p[i+1] == QLatin1Char('.')) {
                int dotcount = 1;
                if (i+2 < len && p[i+2] == QLatin1Char('.'))
                    dotcount++;
                if (i == len - dotcount - 1) {
                    if (dotcount == 1) {
                        break;
                    } else if (levels) {
                        if (last == -1) {
                            for (int i2 = iwrite-1; i2 >= 0; i2--) {
                                if (out[i2] == QLatin1Char('/')) {
                                    last = i2;
                                    break;
                                }
                            }
                        }
                        used -= iwrite - last - 1;
                        break;
                    }
                } else if (p[i+dotcount+1] == QLatin1Char('/')) {
                    if (dotcount == 2 && levels) {
                        if (last == -1 || iwrite - last == 1) {
                            for (int i2 = (last == -1) ? (iwrite-1) : (last-1); i2 >= 0; i2--) {
                                if (out[i2] == QLatin1Char('/')) {
                                    eaten = true;
                                    last = i2;
                                    break;
                                }
                            }
                        } else {
                            eaten = true;
                        }
                        if (eaten) {
                            levels--;
                            used -= iwrite - last;
                            iwrite = last;
                            last = -1;
                        }
                    } else if (dotcount == 2 && i > 0 && p[i - 1] != QLatin1Char('.')) {
                        eaten = true;
                        used -= iwrite - qMax(0, last);
                        iwrite = qMax(0, last);
                        last = -1;
                        ++i;
                    } else if (dotcount == 1) {
                        eaten = true;
                    }
                    if (eaten)
                        i += dotcount;
                } else {
                    levels++;
                }
            } else if (last != -1 && iwrite - last == 1) {
#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
                eaten = (iwrite > 2);
#else
                eaten = true;
#endif
                last = -1;
            } else if (last != -1 && i == len-1) {
                eaten = true;
            } else {
                levels++;
            }
            if (!eaten)
                last = i - (i - iwrite);
            else
                continue;
        } else if (!i && p[i] == QLatin1Char('.')) {
            int dotcount = 1;
            if (len >= 1 && p[1] == QLatin1Char('.'))
                dotcount++;
            if (len >= dotcount && p[dotcount] == QLatin1Char('/')) {
                if (dotcount == 1) {
                    i++;
                    while (i+1 < len-1 && p[i+1] == QLatin1Char('/'))
                        i++;
                    continue;
                }
            }
        }
        out[iwrite++] = p[i];
        used++;
    }

    QString ret = (used == len ? name : QString(out, used));
    // Strip away last slash except for root directories
    if (ret.length() > 1 && ret.endsWith(QLatin1Char('/'))) {
#if defined (Q_OS_WIN) || defined (Q_OS_SYMBIAN)
        if (!(ret.length() == 3 && ret.at(1) == QLatin1Char(':')))
#endif
            ret.chop(1);
    }

    return ret;
}

convertSeparators()

QString QDir::convertSeparators ( const QString &  pathName )

static

Use QDir::toNativeSeparators() instead.

Definition at line 788 of file qdir.cpp.

{
    return toNativeSeparators(pathName);
}

count()

uint QDir::count

(

)

const

Returns the total number of directories and files in the directory.

Equivalent to entryList().count().

See also

operator[](), entryList()

Definition at line 1247 of file qdir.cpp.

Referenced by cleanupFontsDir(), initializeDb(), QBasicUnixFontDatabase::populateFontDatabase(), and QPlatformFontDatabase::populateFontDatabase().

{
    const QDirPrivate* d = d_ptr.constData();
    d->initFileLists(*this);
    return d->files.count();
}

current()

QDir QDir::current ( )

inlinestatic

Returns the application's current directory.

The directory is constructed using the absolute path of the current directory, ensuring that its path() will be the same as its absolutePath().

See also

currentPath(), setCurrent(), home(), root(), temp()

Definition at line 209 of file qdir.h.

Referenced by _qt_get_directory(), and QCoreApplication::applicationFilePath().

{ return QDir(currentPath()); }

currentPath()

QString QDir::currentPath ( )

static

Returns the absolute path of the application's current directory.

See also

current(), setCurrent(), homePath(), rootPath(), tempPath()

Definition at line 1875 of file qdir.cpp.

Referenced by QUnixPrintWidgetPrivate::applyPrinterProperties(), QDeclarativeEngine::baseUrl(), QDeclarativeFolderListModel::componentComplete(), fixIfRelativeUncPath(), QFileSystemEngine::getLinkTarget(), QLibraryInfo::location(), QFSFileEnginePrivate::longFileName(), QFileSystemEngine::nativeAbsoluteFilePath(), QProcessPrivate::pipeWriterBytesToWrite(), qt_init(), qt_win_get_existing_directory(), QTest::qtest_qParseArgs(), registerComponent(), QGtkStylePrivate::setupGtkFileChooser(), and QFileDialogPrivate::workingDirectory().

{
    return QFileSystemEngine::currentPath().filePath();
}

dirName()

QString QDir::dirName

(

)

const

Returns the name of the directory; this is not the same as the path, e.g.

a directory with the name "mail", might have the path "/var/spool/mail". If the directory has no name (e.g. it is the root directory) an empty string is returned.

No check is made to ensure that a directory with this name actually exists; but see exists().

See also

path(), filePath(), absolutePath(), absoluteFilePath()

Definition at line 663 of file qdir.cpp.

Referenced by cd(), and QDirModel::mkdir().

{
    const QDirPrivate* d = d_ptr.constData();
    return d->dirEntry.fileName();
}

drives()

QFileInfoList QDir::drives ( )

static

Returns a list of the root directories on this system.

On Windows this returns a list of QFileInfo objects containing "C:/", "D:/", etc. On other operating systems, it returns a list containing just one root directory (i.e. "/").

See also

root(), rootPath()

Definition at line 1812 of file qdir.cpp.

Referenced by QDirModelPrivate::children(), QFileInfoGatherer::getFileInfos(), and QPluginLoader::setFileName().

{
#ifdef QT_NO_FSFILEENGINE
    return QFileInfoList();
#else
    return QFSFileEngine::drives();
#endif
}

entryInfoList() [1/2]

QFileInfoList QDir::entryInfoList	(	Filters	filters = NoFilter,
		SortFlags	sort = NoSort
	)		const

Returns a list of QFileInfo objects for all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting().

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

The attribute filter and sorting specifications can be overridden using the filters and sort arguments.

Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.

See also

entryList(), setNameFilters(), setSorting(), setFilter(), isReadable(), exists()

Definition at line 1316 of file qdir.cpp.

Referenced by QScriptEngine::availableExtensions(), QDirModelPrivate::children(), QBenchmarkValgrindUtils::cleanup(), QFontEngineQPF::cleanUpAfterClientCrash(), QDirModelPrivate::entryInfoList(), QBenchmarkValgrindUtils::getNewestFileName(), QScriptEngine::importExtension(), QScriptDebuggerConsolePrivate::loadScriptedCommands(), qt_parseEtcLpMember(), qt_parseEtcLpPrinters(), and qt_parseSpoolInterface().

{
    const QDirPrivate* d = d_ptr.constData();
    return entryInfoList(d->nameFilters, filters, sort);
}

entryInfoList() [2/2]

QFileInfoList QDir::entryInfoList	(	const QStringList &	nameFilters,
		Filters	filters = NoFilter,
		SortFlags	sort = NoSort
	)		const

Returns a list of QFileInfo objects for all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting().

The name filter, file attribute filter, and sorting specification can be overridden using the nameFilters, filters, and sort arguments.

Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.

See also

entryList(), setNameFilters(), setSorting(), setFilter(), isReadable(), exists()

Definition at line 1384 of file qdir.cpp.

{
    const QDirPrivate* d = d_ptr.constData();

    if (filters == NoFilter)
        filters = d->filters;
#ifdef QT3_SUPPORT
    if (d->matchAllDirs)
        filters |= AllDirs;
#endif
    if (sort == NoSort)
        sort = d->sort;

    if (filters == d->filters && sort == d->sort && nameFilters == d->nameFilters) {
        d->initFileLists(*this);
        return d->fileInfos;
    }

    QFileInfoList l;
    QDirIterator it(d->dirEntry.filePath(), nameFilters, filters);
    while (it.hasNext()) {
        it.next();
        l.append(it.fileInfo());
    }
    QFileInfoList ret;
    d->sortFileList(sort, l, 0, &ret);
    return ret;
}

entryList() [1/2]

QStringList QDir::entryList	(	Filters	filters = NoFilter,
		SortFlags	sort = NoSort
	)		const

Returns a list of the names of all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting().

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

The attribute filter and sorting specifications can be overridden using the filters and sort arguments.

Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.

Note

To list symlinks that point to non existing files, System must be passed to the filter.

See also

entryInfoList(), setNameFilters(), setSorting(), setFilter()

Definition at line 1290 of file qdir.cpp.

Referenced by QCoreApplication::applicationFilePath(), QDirModelPrivate::entryList(), QPollingFileSystemWatcherEngine::FileInfo::FileInfo(), findAllLibCrypto(), findAllLibSsl(), QDeclarativeDebugServerPrivate::loadConnectionPlugin(), QDeclarativeInspectorService::loadInspectorPlugin(), QPollingFileSystemWatcherEngine::FileInfo::operator!=(), and QFactoryLoader::updateDir().

{
    const QDirPrivate* d = d_ptr.constData();
    return entryList(d->nameFilters, filters, sort);
}

entryList() [2/2]

QStringList QDir::entryList	(	const QStringList &	nameFilters,
		Filters	filters = NoFilter,
		SortFlags	sort = NoSort
	)		const

Returns a list of the names of all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters() and setFilter(), and sorted according to the flags set with setSorting().

The name filter, file attribute filter, and sorting specification can be overridden using the nameFilters, filters, and sort arguments.

Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.

See also

entryInfoList(), setNameFilters(), setSorting(), setFilter()

Definition at line 1338 of file qdir.cpp.

{
    const QDirPrivate* d = d_ptr.constData();

    if (filters == NoFilter)
        filters = d->filters;
#ifdef QT3_SUPPORT
    if (d->matchAllDirs)
        filters |= AllDirs;
#endif
    if (sort == NoSort)
        sort = d->sort;

    if (filters == d->filters && sort == d->sort && nameFilters == d->nameFilters) {
        d->initFileLists(*this);
        return d->files;
    }

    QFileInfoList l;
    QDirIterator it(d->dirEntry.filePath(), nameFilters, filters);
    while (it.hasNext()) {
        it.next();
        l.append(it.fileInfo());
    }
    QStringList ret;
    d->sortFileList(sort, l, &ret, 0);
    return ret;
}

exists() [1/2]

bool QDir::exists

(

)

const

Returns true if the directory exists; otherwise returns false.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

(If a file with the same name is found this function will return false).

The overload of this function that accepts an argument is used to test for the presence of files and directories within a directory.

See also

QFileInfo::exists(), QFile::exists()

Definition at line 1560 of file qdir.cpp.

Referenced by QScriptEngine::availableExtensions(), QDeclarativeFolderListModel::componentComplete(), QIconLoader::findIconHelper(), QGuiPlatformPlugin::iconThemeSearchPaths(), QScriptEngine::importExtension(), QKde::kdeHome(), QDeclarativeDebugServerPrivate::loadConnectionPlugin(), QDeclarativeInspectorService::loadInspectorPlugin(), operator==(), qt_parseEtcLpMember(), qt_parseSpoolInterface(), qws_fontCacheDir(), and QFileSystemModel::setRootPath().

{
    return d_ptr->exists();
}

exists() [2/2]

bool QDir::exists

(

const QString &

name

)

const

Returns true if the file called name exists; otherwise returns false.

Unless name contains an absolute file path, the file name is assumed to be relative to the directory itself, so this function is typically used to check for the presence of files within a directory.

See also

QFileInfo::exists(), QFile::exists()

Definition at line 1794 of file qdir.cpp.

{
    if (name.isEmpty()) {
        qWarning("QDir::exists: Empty or null file name");
        return false;
    }
    return QFile::exists(filePath(name));
}

filePath()

QString QDir::filePath

(

const QString &

fileName

)

const

Returns the path name of a file in the directory.

Does not check if the file actually exists in the directory; but see exists(). If the QDir is relative the returned path name will also be relative. Redundant multiple separators or "." and ".." directories in fileName are not removed (see cleanPath()).

See also

dirName() absoluteFilePath(), isRelative(), canonicalPath()

Definition at line 678 of file qdir.cpp.

Referenced by exists(), QLibraryInfoPrivate::findConfiguration(), QIconLoader::findIconHelper(), mkdir(), mkpath(), remove(), rename(), rmdir(), rmpath(), and QFileInfo::setFile().

{
    const QDirPrivate* d = d_ptr.constData();
    if (isAbsolutePath(fileName))
        return QString(fileName);

    QString ret = d->dirEntry.filePath();
    if (!fileName.isEmpty()) {
        if (!ret.isEmpty() && ret[(int)ret.length()-1] != QLatin1Char('/') && fileName[0] != QLatin1Char('/'))
            ret += QLatin1Char('/');
        ret += fileName;
    }
    return ret;
}

filter()

QDir::Filters QDir::filter

(

)

const

Returns the value set by setFilter()

Definition at line 1085 of file qdir.cpp.

Referenced by operator<<().

{
    const QDirPrivate* d = d_ptr.constData();
    return d->filters;
}

fromNativeSeparators()

QString QDir::fromNativeSeparators ( const QString &  pathName )

static

Returns pathName using '/' as file separator.

Since

4.2

On Windows, for instance, fromNativeSeparators("<tt>c:\\winnt\\system32</tt>") returns "c:/winnt/system32".

The returned string may be the same as the argument on some operating systems, for example on Unix.

See also

toNativeSeparators(), separator()

Definition at line 848 of file qdir.cpp.

Referenced by QZipWriter::addDirectory(), QZipWriter::addFile(), QZipWriter::addSymLink(), QFileSystemModelPrivate::filePath(), QUrl::fromLocalFile(), QFileInfoGatherer::getFileInfos(), isDirPath(), QFSFileEnginePrivate::longFileName(), QFileSystemModelPrivate::name(), QFileSystemEngine::nativeAbsoluteFilePath(), QFileSystemModelPrivate::node(), QFileSystemEntry::resolveFilePath(), QDirPrivate::setPath(), QFileSystemModel::setRootPath(), and QCompleter::splitPath().

{
#if defined(Q_FS_FAT) || defined(Q_OS_OS2EMX) || defined(Q_OS_SYMBIAN)
    int i = pathName.indexOf(QLatin1Char('\\'));
    if (i != -1) {
        QString n(pathName);

        QChar * const data = n.data();
        data[i++] = QLatin1Char('/');

        for (; i < n.length(); ++i) {
            if (data[i] == QLatin1Char('\\'))
                data[i] = QLatin1Char('/');
        }

        return n;
    }
#endif
    return pathName;
}

home()

QDir QDir::home ( )

inlinestatic

Returns the user's home directory.

The directory is constructed using the absolute path of the home directory, ensuring that its path() will be the same as its absolutePath().

See homePath() for details.

See also

drives(), current(), root(), temp()

Definition at line 212 of file qdir.h.

{ return QDir(homePath()); }

homePath()

QString QDir::homePath ( )

static

Returns the absolute path of the user's home directory.

Under Windows this function will return the directory of the current user's profile. Typically, this is:

C:/Documents and Settings/Username

Use the toNativeSeparators() function to convert the separators to the ones that are appropriate for the underlying operating system.

If the directory of the current user's profile does not exist or cannot be retrieved, the following alternatives will be checked (in the given order) until an existing and available path is found:

1. The path specified by the USERPROFILE environment variable.
2. The path formed by concatenating the HOMEDRIVE and HOMEPATH environment variables.
3. The path specified by the HOME environment variable.
4. The path returned by the rootPath() function (which uses the SystemDrive environment variable)
5. The C:/ directory.

Under non-Windows operating systems the HOME environment variable is used if it exists, otherwise the path returned by the rootPath().

On Symbian this typically returns "c:/data", i.e. the same as native PathInfo::PhoneMemoryRootPath().

See also

home(), currentPath(), rootPath(), tempPath()

Definition at line 1942 of file qdir.cpp.

Referenced by QFileDialogPrivate::_q_goHome(), QMacPasteboardMimeVCard::convertFromMime(), QFileDialogPrivate::createWidgets(), QMacSettingsPrivate::fileName(), getFullPath(), QScanThread::getUserConfigurations(), QGuiPlatformPlugin::iconThemeSearchPaths(), QTestFileLogger::init(), initDefaultPaths(), QKde::kdeHome(), launchWebBrowser(), openDocument(), qt_getDefaultFromHomePrinters(), qt_parseNsswitchPrintersEntry(), qt_tildeExpansion(), qt_win_get_open_file_name(), qt_win_get_open_file_names(), qt_win_get_save_file_name(), QUnixPrintWidgetPrivate::QUnixPrintWidgetPrivate(), QUnixPrintWidgetPrivate::setupPrinter(), and QDesktopServices::storageLocation().

{
    return QFileSystemEngine::homePath();
}

isAbsolute()

bool QDir::isAbsolute ( ) const

inline

Returns true if the directory's path is absolute; otherwise returns false.

See isAbsolutePath().

See also

isRelative() makeAbsolute() cleanPath()

Definition at line 194 of file qdir.h.

{ return !isRelative(); }

isAbsolutePath()

bool QDir::isAbsolutePath ( const QString &  path )

inlinestatic

Returns true if path is absolute; returns false if it is relative.

See also

isAbsolute() isRelativePath() makeAbsolute() cleanPath()

Definition at line 192 of file qdir.h.

Referenced by absoluteFilePath(), QmlApplicationViewerPrivate::adjustPath(), cd(), filePath(), QUrl::fromUserInput(), QProcessPrivate::pipeWriterBytesToWrite(), and qt_create_commandline().

{ return !isRelativePath(path); }

isReadable()

bool QDir::isReadable

(

)

const

Returns true if the directory is readable and we can open files by name; otherwise returns false.

Warning

A false value from this function is not a guarantee that files in the directory are not accessible.

See also

QFileInfo::isReadable()

Definition at line 1527 of file qdir.cpp.

{
    const QDirPrivate* d = d_ptr.constData();

    if (d->fileEngine.isNull()) {
        if (!d->metaData.hasFlags(QFileSystemMetaData::UserReadPermission))
            QFileSystemEngine::fillMetaData(d->dirEntry, d->metaData, QFileSystemMetaData::UserReadPermission);

        return (d->metaData.permissions() & QFile::ReadUser) != 0;
    }

    const QAbstractFileEngine::FileFlags info =
        d->fileEngine->fileFlags(QAbstractFileEngine::DirectoryType
                                       | QAbstractFileEngine::PermsMask);
    if (!(info & QAbstractFileEngine::DirectoryType))
        return false;
    return info & QAbstractFileEngine::ReadUserPerm;
}

isRelative()

bool QDir::isRelative

(

)

const

Returns true if the directory path is relative; otherwise returns false.

(Under Unix a path is relative if it does not start with a "/").

See also

makeAbsolute() isAbsolute() isAbsolutePath() cleanPath()

Definition at line 1615 of file qdir.cpp.

Referenced by QDirModel::mkdir().

{
    if (d_ptr->fileEngine.isNull())
        return d_ptr->dirEntry.isRelative();
    return d_ptr->fileEngine->isRelativePath();
}

isRelativePath()

bool QDir::isRelativePath ( const QString &  path )

static

Returns true if path is relative; returns false if it is absolute.

See also

isRelative() isAbsolutePath() makeAbsolute()

Definition at line 2210 of file qdir.cpp.

Referenced by QDeclarativeTypeLoader::get(), QDeclarativeTypeLoader::getQmldir(), QDeclarativeTypeLoader::getScript(), QLibraryInfo::location(), makeAbsolute(), relativeFilePath(), QDeclarativeImportDatabase::resolvePlugin(), QFileDialog::selectFile(), QFileDialogPrivate::selectFile_sys(), and QUnixPrintWidgetPrivate::setupPrinter().

{
    return QFileInfo(path).isRelative();
}

isRoot()

bool QDir::isRoot

(

)

const

Returns true if the directory is the root directory; otherwise returns false.

Note: If the directory is a symbolic link to the root directory this function returns false. If you want to test for this use canonicalPath(), e.g.

QDir dir("/tmp/root_link");
dir = dir.canonicalPath();
if (dir.isRoot())
    qWarning("It is a root link");

See also

root(), rootPath()

Definition at line 1577 of file qdir.cpp.

Referenced by QDnotifyFileSystemWatcherEngine::addPaths(), cd(), and QDeclarativeFolderListModel::setFolder().

{
    if (d_ptr->fileEngine.isNull())
        return d_ptr->dirEntry.isRoot();
    return d_ptr->fileEngine->fileFlags(QAbstractFileEngine::FlagsMask) & QAbstractFileEngine::RootFlag;
}

makeAbsolute()

bool QDir::makeAbsolute

(

)

Converts the directory path to an absolute path.

If it is already absolute nothing happens. Returns true if the conversion succeeded; otherwise returns false.

See also

isAbsolute() isAbsolutePath() isRelative() cleanPath()

Definition at line 1630 of file qdir.cpp.

{
    const QDirPrivate *d = d_ptr.constData();
    QScopedPointer<QDirPrivate> dir;
    if (!d->fileEngine.isNull()) {
        QString absolutePath = d->fileEngine->fileName(QAbstractFileEngine::AbsoluteName);
        if (QDir::isRelativePath(absolutePath))
            return false;

        dir.reset(new QDirPrivate(*d_ptr.constData()));
        dir->setPath(absolutePath);
    } else { // native FS
        d->resolveAbsoluteEntry();
        dir.reset(new QDirPrivate(*d_ptr.constData()));
        dir->setPath(d->absoluteDirEntry.filePath());
    }
    d_ptr = dir.take(); // actually detach
    return true;
}

match() [1/2]

bool QDir::match ( const QStringList &  filters, const QString &  fileName  )

static

Returns true if the fileName matches any of the wildcard (glob) patterns in the list of filters; otherwise returns false.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

The matching is case insensitive.

See also

{QRegExp wildcard matching}, QRegExp::exactMatch() entryList() entryInfoList()

Definition at line 2047 of file qdir.cpp.

Referenced by match(), and QNSOpenSavePanelDelegate::panel:shouldShowFilename:.

{
    for (QStringList::ConstIterator sit = filters.constBegin(); sit != filters.constEnd(); ++sit) {
        QRegExp rx(*sit, Qt::CaseInsensitive, QRegExp::Wildcard);
        if (rx.exactMatch(fileName))
            return true;
    }
    return false;
}

match() [2/2]

bool QDir::match ( const QString &  filter, const QString &  fileName  )

static

Returns true if the fileName matches the wildcard (glob) pattern filter; otherwise returns false.

The filter may contain multiple patterns separated by spaces or semicolons. The matching is case insensitive.

See also

{QRegExp wildcard matching}, QRegExp::exactMatch() entryList() entryInfoList()

Definition at line 2065 of file qdir.cpp.

{
    return match(nameFiltersFromString(filter), fileName);
}

mkdir()

bool QDir::mkdir

(

const QString &

dirName

)

const

Creates a sub-directory called dirName.

Returns true on success; otherwise returns false.

If the directory already exists when this function is called, it will return false.

See also

rmdir()

Definition at line 1424 of file qdir.cpp.

Referenced by QDirModel::mkdir(), QFileSystemModel::mkdir(), and QNetworkDiskCachePrivate::prepareLayout().

{
    const QDirPrivate* d = d_ptr.constData();

    if (dirName.isEmpty()) {
        qWarning("QDir::mkdir: Empty or null file name(s)");
        return false;
    }

    QString fn = filePath(dirName);
    if (d->fileEngine.isNull())
        return QFileSystemEngine::createDirectory(QFileSystemEntry(fn), false);
    return d->fileEngine->mkdir(fn, false);
}

mkpath()

bool QDir::mkpath

(

const QString &

dirPath

)

const

Creates the directory path dirPath.

The function will create all parent directories necessary to create the directory.

Returns true if successful; otherwise returns false.

If the path already exists when this function is called, it will return true.

See also

rmpath()

Definition at line 1477 of file qdir.cpp.

Referenced by DumpIDL(), QZipReader::extractAll(), QNetworkDiskCachePrivate::prepareLayout(), qmlsqldatabase_initDatabasesPath(), and qws_fontCacheDir().

{
    const QDirPrivate* d = d_ptr.constData();

    if (dirPath.isEmpty()) {
        qWarning("QDir::mkpath: Empty or null file name(s)");
        return false;
    }

    QString fn = filePath(dirPath);
    if (d->fileEngine.isNull())
        return QFileSystemEngine::createDirectory(QFileSystemEntry(fn), true);
    return d->fileEngine->mkdir(fn, true);
}

nameFilters()

QStringList QDir::nameFilters

(

)

const

Returns the string list set by setNameFilters()

Definition at line 945 of file qdir.cpp.

Referenced by entryInfoList(), entryList(), nameFiltersFromString(), operator<<(), and setNameFilters().

{
    const QDirPrivate* d = d_ptr.constData();
    return d->nameFilters;
}

nameFiltersFromString()

QStringList QDir::nameFiltersFromString ( const QString &  nameFilter )

static

Returns a list of name filters from the given nameFilter.

Warning

This function is not part of the public interface.

(If there is more than one filter, each pair of filters is separated by a space or by a semicolon.)

Definition at line 2236 of file qdir.cpp.

Referenced by match().

{
    return QDirPrivate::splitFilters(nameFilter);
}

operator!=()

bool QDir::operator!= ( const QDir &  dir ) const

inline

Returns true if directory dir and this directory have different paths or different sort or filter settings; otherwise returns false.

Example:

// The current directory is "/usr/local"
QDir d1("/usr/local/bin");
d1.setFilter(QDir::Executable);
QDir d2("bin");
if (d1 != d2)
    qDebug("They differ");

Definition at line 198 of file qdir.h.

{  return !operator==(dir); }

operator=() [1/2]

QDir & QDir::operator=

(

const QDir &

dir

)

Makes a copy of the dir object and assigns it to this QDir object.

Definition at line 1707 of file qdir.cpp.

{
    d_ptr = dir.d_ptr;
    return *this;
}

operator=() [2/2]

QDir & QDir::operator=

(

const QString &

path

)

Sets the directory path to the given path.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Use setPath() instead.

Definition at line 1724 of file qdir.cpp.

{
    d_ptr->setPath(path);
    return *this;
}

operator==()

bool QDir::operator==

(

const QDir &

dir

)

const

Returns true if directory dir and this directory have the same path and their sort and filter settings are the same; otherwise returns false.

Example:

// The current directory is "/usr/local"
QDir d1("/usr/local/bin");
QDir d2("bin");
if (d1 == d2)
    qDebug("They're the same");

Definition at line 1659 of file qdir.cpp.

{
    const QDirPrivate *d = d_ptr.constData();
    const QDirPrivate *other = dir.d_ptr.constData();

    if (d == other)
        return true;
    Qt::CaseSensitivity sensitive;
    if (d->fileEngine.isNull() || other->fileEngine.isNull()) {
        if (d->fileEngine.data() != other->fileEngine.data()) // one is native, the other is a custom file-engine
            return false;

        sensitive = QFileSystemEngine::isCaseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive;
    } else {
        if (d->fileEngine->caseSensitive() != other->fileEngine->caseSensitive())
            return false;
        sensitive = d->fileEngine->caseSensitive() ? Qt::CaseSensitive : Qt::CaseInsensitive;
    }

    if (d->filters == other->filters
       && d->sort == other->sort
       && d->nameFilters == other->nameFilters) {

        // Assume directories are the same if path is the same
        if (d->dirEntry.filePath() == other->dirEntry.filePath())
            return true;

        if (exists()) {
            if (!dir.exists())
                return false; //can't be equal if only one exists
            // Both exist, fallback to expensive canonical path computation
            return canonicalPath().compare(dir.canonicalPath(), sensitive) == 0;
        } else {
            if (dir.exists())
                return false; //can't be equal if only one exists
            // Neither exists, compare absolute paths rather than canonical (which would be empty strings)
            d->resolveAbsoluteEntry();
            other->resolveAbsoluteEntry();
            return d->absoluteDirEntry.filePath().compare(other->absoluteDirEntry.filePath(), sensitive) == 0;
        }
    }
    return false;
}

operator[]()

QString QDir::operator[]

(

int

pos

)

const

Returns the file name at position pos in the list of file names.

Equivalent to entryList().at(index). pos must be a valid index position in the list (i.e., 0 <= pos < count()).

See also

count(), entryList()

Definition at line 1261 of file qdir.cpp.

{
    const QDirPrivate* d = d_ptr.constData();
    d->initFileLists(*this);
    return d->files[pos];
}

path()

QString QDir::path

(

)

const

Returns the path.

This may contain symbolic links, but never contains redundant ".", ".." or multiple separators.

The returned path can be either absolute or relative (see setPath()).

See also

setPath(), absolutePath(), exists(), cleanPath(), dirName(), absoluteFilePath(), toNativeSeparators(), makeAbsolute()

Definition at line 605 of file qdir.cpp.

Referenced by QDnotifyFileSystemWatcherEngine::addPaths(), addResourceSearchPath(), cleanPath(), QGuiPlatformPlugin::iconThemeSearchPaths(), operator<<(), QIconTheme::QIconTheme(), QFileDialog::selectFile(), QDeclarativeFolderListModel::setFolder(), and QFileSystemModel::setRootPath().

{
    const QDirPrivate* d = d_ptr.constData();
    return d->dirEntry.filePath();
}

refresh()

void QDir::refresh

(

)

const

Refreshes the directory information.

Definition at line 2218 of file qdir.cpp.

Referenced by initializeDb(), QBasicUnixFontDatabase::populateFontDatabase(), and QPlatformFontDatabase::populateFontDatabase().

{
    QDirPrivate *d = const_cast<QDir*>(this)->d_ptr.data();
    d->metaData.clear();
    d->initFileEngine();
    d->clearFileLists();
}

relativeFilePath()

QString QDir::relativeFilePath

(

const QString &

fileName

)

const

Returns the path to fileName relative to the directory.

QDir dir("/home/bob");
QString s;

s = dir.relativeFilePath("images/file.jpg");     // s is "images/file.jpg"
s = dir.relativeFilePath("/home/mary/file.txt"); // s is "../mary/file.txt"

See also

absoluteFilePath() filePath() canonicalPath()

Definition at line 722 of file qdir.cpp.

Referenced by QScriptEngine::availableExtensions().

{
    QString dir = cleanPath(absolutePath());
    QString file = cleanPath(fileName);

    if (isRelativePath(file) || isRelativePath(dir))
        return file;

    QString dirDrive = driveSpec(dir);
    QString fileDrive = driveSpec(file);

    bool fileDriveMissing = false;
    if (fileDrive.isEmpty()) {
        fileDrive = dirDrive;
        fileDriveMissing = true;
    }

#ifdef Q_OS_WIN
    if (fileDrive.toLower() != dirDrive.toLower()
        || (file.startsWith(QLatin1String("//"))
        && !dir.startsWith(QLatin1String("//"))))
#elif defined(Q_OS_SYMBIAN)
    if (fileDrive.toLower() != dirDrive.toLower())
#else
    if (fileDrive != dirDrive)
#endif
        return file;

    dir.remove(0, dirDrive.size());
    if (!fileDriveMissing)
        file.remove(0, fileDrive.size());

    QString result;
    QStringList dirElts = dir.split(QLatin1Char('/'), QString::SkipEmptyParts);
    QStringList fileElts = file.split(QLatin1Char('/'), QString::SkipEmptyParts);

    int i = 0;
    while (i < dirElts.size() && i < fileElts.size() &&
#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
           dirElts.at(i).toLower() == fileElts.at(i).toLower())
#else
           dirElts.at(i) == fileElts.at(i))
#endif
        ++i;

    for (int j = 0; j < dirElts.size() - i; ++j)
        result += QLatin1String("../");

    for (int j = i; j < fileElts.size(); ++j) {
        result += fileElts.at(j);
        if (j < fileElts.size() - 1)
            result += QLatin1Char('/');
    }

    return result;
}

remove()

bool QDir::remove

(

const QString &

fileName

)

Removes the file, fileName.

Returns true if the file is removed successfully; otherwise returns false.

Definition at line 1751 of file qdir.cpp.

Referenced by cleanupFontsDir(), and QDirModel::remove().

{
    if (fileName.isEmpty()) {
        qWarning("QDir::remove: Empty or null file name");
        return false;
    }
    return QFile::remove(filePath(fileName));
}

rename()

bool QDir::rename	(	const QString &	oldName,
		const QString &	newName
	)

Renames a file or directory from oldName to newName, and returns true if successful; otherwise returns false.

On most file systems, rename() fails only if oldName does not exist, if newName and oldName are not on the same partition or if a file with the new name already exists. However, there are also other reasons why rename() can fail. For example, on at least one file system rename() fails if newName points to an open file.

Definition at line 1771 of file qdir.cpp.

Referenced by QDirModel::setData(), and QFileSystemModel::setData().

{
    if (oldName.isEmpty() || newName.isEmpty()) {
        qWarning("QDir::rename: Empty or null file name(s)");
        return false;
    }

    QFile file(filePath(oldName));
    if (!file.exists())
        return false;
    return file.rename(filePath(newName));
}

rmdir()

bool QDir::rmdir

(

const QString &

dirName

)

const

Removes the directory specified by dirName.

The directory must be empty for rmdir() to succeed.

Returns true if successful; otherwise returns false.

See also

mkdir()

Definition at line 1448 of file qdir.cpp.

Referenced by QDirModel::rmdir(), and QFileSystemModel::rmdir().

{
    const QDirPrivate* d = d_ptr.constData();

    if (dirName.isEmpty()) {
        qWarning("QDir::rmdir: Empty or null file name(s)");
        return false;
    }

    QString fn = filePath(dirName);
    if (d->fileEngine.isNull())
        return QFileSystemEngine::removeDirectory(QFileSystemEntry(fn), false);

    return d->fileEngine->rmdir(fn, false);
}

rmpath()

bool QDir::rmpath

(

const QString &

dirPath

)

const

Removes the directory path dirPath.

The function will remove all parent directories in dirPath, provided that they are empty. This is the opposite of mkpath(dirPath).

Returns true if successful; otherwise returns false.

See also

mkpath()

Definition at line 1503 of file qdir.cpp.

{
    const QDirPrivate* d = d_ptr.constData();

    if (dirPath.isEmpty()) {
        qWarning("QDir::rmpath: Empty or null file name(s)");
        return false;
    }

    QString fn = filePath(dirPath);
    if (d->fileEngine.isNull())
        return QFileSystemEngine::removeDirectory(QFileSystemEntry(fn), true);
    return d->fileEngine->rmdir(fn, true);
}

root()

QDir QDir::root ( )

inlinestatic

Returns the root directory.

The directory is constructed using the absolute path of the root directory, ensuring that its path() will be the same as its absolutePath().

See rootPath() for details.

See also

drives(), current(), home(), temp()

Definition at line 214 of file qdir.h.

Referenced by QZipReader::extractAll().

{ return QDir(rootPath()); }

rootPath()

QString QDir::rootPath ( )

static

Returns the absolute path of the root directory.

For Unix operating systems this returns "/". For Windows and Symbian file systems this normally returns "c:/". I.E. the root of the system drive.

See also

root(), drives(), currentPath(), homePath(), tempPath()

Definition at line 2016 of file qdir.cpp.

Referenced by QFileSystemModelPrivate::node().

{
    return QFileSystemEngine::rootPath();
}

searchPaths()

static QStringList QDir::searchPaths ( const QString &  prefix )

static

Referenced by _q_resolveEntryAndCreateLegacyEngine_recursive(), and addResourceSearchPath().

separator()

QChar QDir::separator ( )

static

Returns the native directory separator: "/" under Unix (including Mac OS X) and "\\" under Windows.

You do not need to use this function to build file paths. If you always use "/", Qt will translate your paths to conform to the underlying operating system. If you want to display paths to the user using their operating system's separator use toNativeSeparators().

Definition at line 1831 of file qdir.cpp.

Referenced by QCompleterPrivate::_q_complete(), QFileDialogPrivate::_q_createDirectory(), QScriptEngine::availableExtensions(), QFileDialogPrivate::basename(), QDeclarativeEngine::baseUrl(), QDirModelPrivate::children(), cleanPath(), QFileSystemEngine::createDirectory(), QDirModel::dropMimeData(), QFileSystemModel::dropMimeData(), QZipReader::extractAll(), QFileSystemModelPrivate::filePath(), QCompletionEngine::filterHistory(), QFileInfoGatherer::getFileInfos(), QScriptEngine::importExtension(), QTestFileLogger::init(), initDefaultPaths(), isDirPath(), QTextDocument::loadResource(), QFileSystemModel::mkdir(), QFSCompleter::pathFromIndex(), QCompleter::pathFromIndex(), QConfFileSettingsPrivate::QConfFileSettingsPrivate(), QDeclarativeImportDatabase::QDeclarativeImportDatabase(), QDeclarativeScriptEngine::QDeclarativeScriptEngine(), qmlsqldatabase_databaseFile(), qmlsqldatabase_databasesPath(), qt_tildeExpansion(), QFileSystemEngine::removeDirectory(), QTextBrowserPrivate::resolveUrl(), QFileDialog::selectFile(), QCoreApplication::setApplicationVersion(), QFileSystemModel::setData(), QSettings::setPath(), QUnixPrintWidgetPrivate::setupPrinter(), QFSCompleter::splitPath(), QCompleter::splitPath(), QFileDialogPrivate::typedFiles(), and QFileInfoGatherer::updateFile().

{
#if defined (Q_FS_FAT) || defined(Q_WS_WIN) || defined(Q_OS_SYMBIAN)
    return QLatin1Char('\\');
#elif defined(Q_OS_UNIX)
    return QLatin1Char('/');
#elif defined (Q_OS_MAC)
    return QLatin1Char(':');
#else
    return QLatin1Char('/');
#endif
}

setCurrent()

bool QDir::setCurrent ( const QString &  path )

static

Sets the application's current working directory to path.

Returns true if the directory was successfully changed; otherwise returns false.

See also

current(), currentPath(), home(), root(), temp()

Definition at line 1851 of file qdir.cpp.

Referenced by qt_init().

{
    return QFileSystemEngine::setCurrentPath(QFileSystemEntry(path));
}

setFilter()

void QDir::setFilter

(

Filters

filters

)

Sets the filter used by entryList() and entryInfoList() to filters.

The filter is used to specify the kind of files that should be returned by entryList() and entryInfoList(). See QDir::Filter.

See also

filter(), setNameFilters()

Definition at line 1170 of file qdir.cpp.

Referenced by QFileDialogPrivate::_q_showHidden(), and QFileSystemModel::rootDirectory().

{
    QDirPrivate* d = d_ptr.data();
    d->initFileEngine();
    d->clearFileLists();

    d->filters = filters;
}

setNameFilters()

void QDir::setNameFilters

(

const QStringList &

nameFilters

)

Sets the name filters used by entryList() and entryInfoList() to the list of filters specified by nameFilters.

Each name filter is a wildcard (globbing) filter that understands * and ? wildcards. (See QRegExp wildcard matching.)

For example, the following code sets three name filters on a QDir to ensure that only files with extensions typically used for C++ source files are listed:

    QStringList filters;
    filters << "*.cpp" << "*.cxx" << "*.cc";
    dir.setNameFilters(filters);

See also

nameFilters(), setFilter()

Definition at line 966 of file qdir.cpp.

Referenced by initializeDb(), QBasicUnixFontDatabase::populateFontDatabase(), QPlatformFontDatabase::populateFontDatabase(), QFileSystemModel::rootDirectory(), and QSslSocketPrivate::systemCaCertificates().

{
    QDirPrivate* d = d_ptr.data();
    d->initFileEngine();
    d->clearFileLists();

    d->nameFilters = nameFilters;
}

setPath()

void QDir::setPath

(

const QString &

path

)

Sets the path of the directory to path.

The path is cleaned of redundant ".", ".." and of multiple separators. No check is made to see whether a directory with this path actually exists; but you can check for yourself using exists().

The path can be either absolute or relative. Absolute paths begin with the directory separator "/" (optionally preceded by a drive specification under Windows). Relative file names begin with a directory name or a file name and specify a path relative to the current directory. An example of an absolute path is the string "/tmp/quartz", a relative path might look like "src/fatlib".

See also

path(), absolutePath(), exists(), cleanPath(), dirName(), absoluteFilePath(), isRelative(), makeAbsolute()

Definition at line 590 of file qdir.cpp.

Referenced by qt_win_get_open_file_names(), QDeclarativeFolderListModel::setFolder(), QFileSystemModel::setRootPath(), and QSslSocketPrivate::systemCaCertificates().

{
    d_ptr->setPath(path);
}

setSearchPaths()

static void QDir::setSearchPaths ( const QString &  prefix, const QStringList &  searchPaths  )

static

Referenced by addResourceSearchPath().

setSorting()

void QDir::setSorting

(

SortFlags

sort

)

Sets the sort order used by entryList() and entryInfoList().

The sort is specified by OR-ing values from the enum QDir::SortFlag.

See also

sorting() SortFlag

Definition at line 1231 of file qdir.cpp.

{
    QDirPrivate* d = d_ptr.data();
    d->initFileEngine();
    d->clearFileLists();

    d->sort = sort;
}

sorting()

QDir::SortFlags QDir::sorting

(

)

const

Returns the value set by setSorting()

See also

setSorting() SortFlag

Definition at line 1184 of file qdir.cpp.

Referenced by operator<<().

{
    const QDirPrivate* d = d_ptr.constData();
    return d->sort;
}

temp()

QDir QDir::temp ( )

inlinestatic

Returns the system's temporary directory.

The directory is constructed using the absolute path of the temporary directory, ensuring that its path() will be the same as its absolutePath().

See tempPath() for details.

See also

drives(), current(), home(), root()

Definition at line 216 of file qdir.h.

{ return QDir(tempPath()); }

tempPath()

QString QDir::tempPath ( )

static

Returns the absolute path of the system's temporary directory.

On Unix/Linux systems this is the path in the TMPDIR environment variable or /tmp if TMPDIR is not defined. On Windows this is usually the path in the TEMP or TMP environment variable. Whether a directory separator is added to the end or not, depends on the operating system.

See also

temp(), currentPath(), homePath(), rootPath()

Definition at line 1987 of file qdir.cpp.

Referenced by QFile::copy(), getFullPath(), launchWebBrowser(), QSharedMemoryPrivate::makePlatformSafeKey(), openDocument(), QTemporaryFile::QTemporaryFile(), qws_fontCacheDir(), QSslSocketBackendPrivate::startHandshake(), QDesktopServices::storageLocation(), and QTemporaryFilePrivate::~QTemporaryFilePrivate().

{
    return QFileSystemEngine::tempPath();
}

toNativeSeparators()

QString QDir::toNativeSeparators ( const QString &  pathName )

static

Returns pathName with the '/' separators converted to separators that are appropriate for the underlying operating system.

Since

4.2

On Windows, toNativeSeparators("c:/winnt/system32") returns "c:\\winnt\\system32".

The returned string may be the same as the argument on some operating systems, for example on Unix.

See also

fromNativeSeparators(), separator()

Definition at line 812 of file qdir.cpp.

Referenced by QFileDialogPrivate::_q_pathChanged(), QWindowsFileSystemWatcherEngine::addPaths(), QFileDialogPrivate::basename(), QWindowsMimeURI::convertFromMime(), convertSeparators(), QCompletionEngine::filterHistory(), QFileIconProviderPrivate::getWinIcon(), QFileDialog::history(), QTestFileLogger::init(), isDirPath(), QLibraryPrivate::isPlugin(), isUncRoot(), QTranslator::load(), QFileSystemEngine::nativeAbsoluteFilePath(), QFileSystemModelPrivate::node(), qmlsqldatabase_databasesPath(), qt_create_commandline(), qt_win_get_existing_directory(), qt_win_get_save_file_name(), qt_win_make_OFN(), QFactoryLoader::refreshAll(), QFileSystemEntry::resolveNativeFilePath(), QUrlModel::setData(), QFileSystemModel::setData(), QPluginLoader::setFileName(), QFileDialogComboBox::setHistory(), QUrlModel::setUrl(), QFSCompleter::splitPath(), and QCompleter::splitPath().

{
#if defined(Q_FS_FAT) || defined(Q_OS_OS2EMX) || defined(Q_OS_SYMBIAN)
    int i = pathName.indexOf(QLatin1Char('/'));
    if (i != -1) {
        QString n(pathName);

        QChar * const data = n.data();
        data[i++] = QLatin1Char('\\');

        for (; i < n.length(); ++i) {
            if (data[i] == QLatin1Char('/'))
                data[i] = QLatin1Char('\\');
        }

        return n;
    }
#endif
    return pathName;
}

Properties

d_ptr

QSharedDataPointer<QDirPrivate> QDir::d_ptr

protected

Definition at line 61 of file qdir.h.

Referenced by absoluteFilePath(), absolutePath(), canonicalPath(), cd(), count(), dirName(), entryInfoList(), entryList(), exists(), filePath(), filter(), isReadable(), isRelative(), isRoot(), makeAbsolute(), mkdir(), mkpath(), nameFilters(), nameFiltersFromString(), operator=(), operator==(), operator[](), path(), refresh(), rmdir(), rmpath(), setFilter(), setNameFilters(), setPath(), setSorting(), and sorting().

---

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

• /src/corelib/io/qdir.h
• /src/corelib/io/qdir.cpp