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1391 lines
38 KiB
1391 lines
38 KiB
/****************************************************************************
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**
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** Implementation of QDir class
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**
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** Created : 950427
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the tools module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
|
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** Public License versions 2.0 or 3.0 as published by the Free
|
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
|
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
|
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#include "qplatformdefs.h"
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#include "qdir.h"
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#ifndef QT_NO_DIR
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#include <private/qdir_p.h>
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#include "qfileinfo.h"
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#include "qregexp.h"
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#include "qstringlist.h"
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#include "qdeepcopy.h"
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#include <limits.h>
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#if defined(Q_FS_FAT) && !defined(Q_OS_UNIX)
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const bool CaseSensitiveFS = FALSE;
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#else
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const bool CaseSensitiveFS = TRUE;
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#endif
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/*!
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\class QDir
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\reentrant
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\brief The QDir class provides access to directory structures and their contents in a platform-independent way.
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\ingroup io
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\mainclass
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A QDir is used to manipulate path names, access information
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regarding paths and files, and manipulate the underlying file
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system.
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A QDir can point to a file using either a relative or an absolute
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path. Absolute paths begin with the directory separator "/"
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(optionally preceded by a drive specification under Windows). If
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you always use "/" as a directory separator, Qt will translate
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your paths to conform to the underlying operating system. Relative
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file names begin with a directory name or a file name and specify
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a path relative to the current directory.
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The "current" path refers to the application's working directory.
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A QDir's own path is set and retrieved with setPath() and path().
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An example of an absolute path is the string "/tmp/quartz", a
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relative path might look like "src/fatlib". You can use the
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function isRelative() to check if a QDir is using a relative or an
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absolute file path. Call convertToAbs() to convert a relative QDir
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to an absolute one. For a simplified path use cleanDirPath(). To
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obtain a path which has no symbolic links or redundant ".."
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elements use canonicalPath(). The path can be set with setPath(),
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and changed with cd() and cdUp().
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QDir provides several static functions, for example, setCurrent()
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to set the application's working directory and currentDirPath() to
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retrieve the application's working directory. Access to some
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common paths is provided with the static functions, current(),
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home() and root() which return QDir objects or currentDirPath(),
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homeDirPath() and rootDirPath() which return the path as a string.
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If you want to know about your application's path use
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\l{QApplication::applicationDirPath()}.
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The number of entries in a directory is returned by count().
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Obtain a string list of the names of all the files and directories
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in a directory with entryList(). If you prefer a list of QFileInfo
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pointers use entryInfoList(). Both these functions can apply a
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name filter, an attributes filter (e.g. read-only, files not
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directories, etc.), and a sort order. The filters and sort may be
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set with calls to setNameFilter(), setFilter() and setSorting().
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They may also be specified in the entryList() and
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entryInfoList()'s arguments.
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Create a new directory with mkdir(), rename a directory with
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rename() and remove an existing directory with rmdir(). Remove a
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file with remove(). You can interrogate a directory with exists(),
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isReadable() and isRoot().
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To get a path with a filename use filePath(), and to get a
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directory name use dirName(); neither of these functions checks
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for the existence of the file or directory.
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The list of root directories is provided by drives(); on Unix
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systems this returns a list containing one root directory, "/"; on
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Windows the list will usually contain "C:/", and possibly "D:/",
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etc.
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It is easiest to work with "/" separators in Qt code. If you need
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to present a path to the user or need a path in a form suitable
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for a function in the underlying operating system use
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convertSeparators().
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Examples:
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See if a directory exists.
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\code
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QDir d( "example" ); // "./example"
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if ( !d.exists() )
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qWarning( "Cannot find the example directory" );
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\endcode
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Traversing directories and reading a file.
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\code
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QDir d = QDir::root(); // "/"
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if ( !d.cd("tmp") ) { // "/tmp"
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qWarning( "Cannot find the \"/tmp\" directory" );
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} else {
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QFile f( d.filePath("ex1.txt") ); // "/tmp/ex1.txt"
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if ( !f.open(IO_ReadWrite) )
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qWarning( "Cannot create the file %s", f.name() );
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}
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\endcode
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A program that lists all the files in the current directory
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(excluding symbolic links), sorted by size, smallest first:
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\code
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#include <stdio.h>
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#include <qdir.h>
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int main( int argc, char **argv )
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{
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QDir d;
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d.setFilter( QDir::Files | QDir::Hidden | QDir::NoSymLinks );
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d.setSorting( QDir::Size | QDir::Reversed );
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const QFileInfoList *list = d.entryInfoList();
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QFileInfoListIterator it( *list );
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QFileInfo *fi;
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printf( " Bytes Filename\n" );
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while ( (fi = it.current()) != 0 ) {
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printf( "%10li %s\n", fi->size(), fi->fileName().latin1() );
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++it;
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}
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return 0;
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}
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\endcode
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\sa QApplication::applicationDirPath()
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*/
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/*!
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Constructs a QDir pointing to the current directory (".").
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\sa currentDirPath()
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*/
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QDir::QDir()
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{
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dPath = QString::fromLatin1(".");
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init();
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}
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/*!
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Constructs a QDir with path \a path, that filters its entries by
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name using \a nameFilter and by attributes using \a filterSpec. It
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also sorts the names using \a sortSpec.
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The default \a nameFilter is an empty string, which excludes
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nothing; the default \a filterSpec is \c All, which also means
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exclude nothing. The default \a sortSpec is \c Name|IgnoreCase,
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i.e. sort by name case-insensitively.
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Example that lists all the files in "/tmp":
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\code
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QDir d( "/tmp" );
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for ( int i = 0; i < d.count(); i++ )
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printf( "%s\n", d[i] );
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\endcode
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If \a path is "" or QString::null, QDir uses "." (the current
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directory). If \a nameFilter is "" or QString::null, QDir uses the
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name filter "*" (all files).
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Note that \a path need not exist.
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\sa exists(), setPath(), setNameFilter(), setFilter(), setSorting()
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*/
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QDir::QDir( const QString &path, const QString &nameFilter,
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int sortSpec, int filterSpec )
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{
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init();
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dPath = cleanDirPath( path );
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if ( dPath.isEmpty() )
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dPath = QString::fromLatin1(".");
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nameFilt = nameFilter;
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if ( nameFilt.isEmpty() )
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nameFilt = QString::fromLatin1("*");
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filtS = (FilterSpec)filterSpec;
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sortS = (SortSpec)sortSpec;
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}
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/*!
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Constructs a QDir that is a copy of the directory \a d.
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\sa operator=()
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*/
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QDir::QDir( const QDir &d )
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{
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dPath = d.dPath;
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fList = 0;
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fiList = 0;
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nameFilt = d.nameFilt;
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dirty = TRUE;
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allDirs = d.allDirs;
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filtS = d.filtS;
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sortS = d.sortS;
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}
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/*!
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Refreshes the directory information.
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*/
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void QDir::refresh() const
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{
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QDir* that = (QDir*) this;
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that->dirty = TRUE;
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}
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void QDir::init()
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{
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fList = 0;
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fiList = 0;
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nameFilt = QString::fromLatin1("*");
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dirty = TRUE;
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allDirs = FALSE;
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filtS = All;
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sortS = SortSpec(Name | IgnoreCase);
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}
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/*!
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Destroys the QDir frees up its resources.
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*/
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QDir::~QDir()
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{
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delete fList;
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delete fiList;
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}
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/*!
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Sets the path of the directory to \a path. The path is cleaned of
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redundant ".", ".." and of multiple separators. No check is made
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to ensure that a directory with this path exists.
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|
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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".
|
|
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\sa path(), absPath(), exists(), cleanDirPath(), dirName(),
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absFilePath(), isRelative(), convertToAbs()
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*/
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void QDir::setPath( const QString &path )
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{
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dPath = cleanDirPath( path );
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if ( dPath.isEmpty() )
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dPath = QString::fromLatin1(".");
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dirty = TRUE;
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}
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/*!
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\fn QString QDir::path() const
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Returns the path, this may contain symbolic links, but never
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|
contains redundant ".", ".." or multiple separators.
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|
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The returned path can be either absolute or relative (see
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setPath()).
|
|
|
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\sa setPath(), absPath(), exists(), cleanDirPath(), dirName(),
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absFilePath(), convertSeparators()
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*/
|
|
|
|
/*!
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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.
|
|
|
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\sa setPath(), canonicalPath(), exists(), cleanDirPath(),
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dirName(), absFilePath()
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*/
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QString QDir::absPath() const
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{
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if ( QDir::isRelativePath(dPath) ) {
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QString tmp = currentDirPath();
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if ( tmp.right(1) != QString::fromLatin1("/") )
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tmp += '/';
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tmp += dPath;
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return cleanDirPath( tmp );
|
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} else {
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return cleanDirPath( dPath );
|
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}
|
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}
|
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|
|
/*!
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Returns the name of the directory; this is \e not the same as the
|
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path, e.g. a directory with the name "mail", might have the path
|
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"/var/spool/mail". If the directory has no name (e.g. it is the
|
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root directory) QString::null is returned.
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No check is made to ensure that a directory with this name
|
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actually exists.
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\sa path(), absPath(), absFilePath(), exists(), QString::isNull()
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*/
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QString QDir::dirName() const
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{
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int pos = dPath.findRev( '/' );
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if ( pos == -1 )
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return dPath;
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return dPath.right( dPath.length() - pos - 1 );
|
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}
|
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|
|
/*!
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Returns the path name of a file in the directory. Does \e not
|
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check if the file actually exists in the directory. If the QDir is
|
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relative the returned path name will also be relative. Redundant
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multiple separators or "." and ".." directories in \a fileName
|
|
will not be removed (see cleanDirPath()).
|
|
|
|
If \a acceptAbsPath is TRUE a \a fileName starting with a
|
|
separator "/" will be returned without change. If \a acceptAbsPath
|
|
is FALSE an absolute path will be prepended to the fileName and
|
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the resultant string returned.
|
|
|
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\sa absFilePath(), isRelative(), canonicalPath()
|
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*/
|
|
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QString QDir::filePath( const QString &fileName,
|
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bool acceptAbsPath ) const
|
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{
|
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if ( acceptAbsPath && !isRelativePath(fileName) )
|
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return QString(fileName);
|
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|
|
QString tmp = dPath;
|
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if ( tmp.isEmpty() || (tmp[(int)tmp.length()-1] != '/' && !!fileName &&
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fileName[0] != '/') )
|
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tmp += '/';
|
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tmp += fileName;
|
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return tmp;
|
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}
|
|
|
|
/*!
|
|
Returns the absolute path name of a file in the directory. Does \e
|
|
not check if the file actually exists in the directory. Redundant
|
|
multiple separators or "." and ".." directories in \a fileName
|
|
will not be removed (see cleanDirPath()).
|
|
|
|
If \a acceptAbsPath is TRUE a \a fileName starting with a
|
|
separator "/" will be returned without change. If \a acceptAbsPath
|
|
is FALSE an absolute path will be prepended to the fileName and
|
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the resultant string returned.
|
|
|
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\sa filePath()
|
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*/
|
|
|
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QString QDir::absFilePath( const QString &fileName,
|
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bool acceptAbsPath ) const
|
|
{
|
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if ( acceptAbsPath && !isRelativePath( fileName ) )
|
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return fileName;
|
|
|
|
QString tmp = absPath();
|
|
#ifdef Q_OS_WIN32
|
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if ( fileName[0].isLetter() && fileName[1] == ':' ) {
|
|
int drv = fileName.upper()[0].latin1() - 'A' + 1;
|
|
if ( _getdrive() != drv ) {
|
|
QT_WA( {
|
|
TCHAR buf[PATH_MAX];
|
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::_wgetdcwd( drv, buf, PATH_MAX );
|
|
tmp.setUnicodeCodes( (ushort*)buf, (uint)::wcslen(buf) );
|
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}, {
|
|
char buf[PATH_MAX];
|
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::_getdcwd( drv, buf, PATH_MAX );
|
|
tmp = buf;
|
|
} );
|
|
if ( !tmp.endsWith("\\") )
|
|
tmp += "\\";
|
|
tmp += fileName.right( fileName.length() - 2 );
|
|
int x;
|
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for ( x = 0; x < (int) tmp.length(); x++ ) {
|
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if ( tmp[x] == '\\' )
|
|
tmp[x] = '/';
|
|
}
|
|
}
|
|
} else
|
|
#endif
|
|
{
|
|
if ( tmp.isEmpty() || (tmp[(int)tmp.length()-1] != '/' && !!fileName &&
|
|
fileName[0] != '/') )
|
|
tmp += '/';
|
|
tmp += fileName;
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
|
|
/*!
|
|
Returns \a pathName with the '/' separators converted to
|
|
separators that are appropriate for the underlying operating
|
|
system.
|
|
|
|
On Windows, convertSeparators("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.
|
|
*/
|
|
|
|
QString QDir::convertSeparators( const QString &pathName )
|
|
{
|
|
QString n( pathName );
|
|
#if defined(Q_FS_FAT) || defined(Q_OS_OS2EMX)
|
|
for ( int i=0; i<(int)n.length(); i++ ) {
|
|
if ( n[i] == '/' )
|
|
n[i] = '\\';
|
|
}
|
|
#elif defined(Q_OS_MAC9)
|
|
while(n.length() && n[0] == '/' ) n = n.right(n.length()-1);
|
|
for ( int i=0; i<(int)n.length(); i++ ) {
|
|
if ( n[i] == '/' )
|
|
n[i] = ':';
|
|
}
|
|
if(n.contains(':') && n.left(1) != ':')
|
|
n.prepend(':');
|
|
#endif
|
|
return n;
|
|
}
|
|
|
|
|
|
/*!
|
|
Changes the QDir's directory to \a dirName.
|
|
|
|
If \a acceptAbsPath is TRUE a path starting with separator "/"
|
|
will cause the function to change to the absolute directory. If \a
|
|
acceptAbsPath is FALSE any number of separators at the beginning
|
|
of \a dirName will be removed and the function will descend into
|
|
\a 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().
|
|
|
|
\sa cdUp(), isReadable(), exists(), path()
|
|
*/
|
|
|
|
bool QDir::cd( const QString &dirName, bool acceptAbsPath )
|
|
{
|
|
if ( dirName.isEmpty() || dirName == QString::fromLatin1(".") )
|
|
return TRUE;
|
|
QString old = dPath;
|
|
if ( acceptAbsPath && !isRelativePath(dirName) ) {
|
|
dPath = cleanDirPath( dirName );
|
|
} else {
|
|
if ( isRoot() ) {
|
|
if ( dirName == ".." ) {
|
|
dPath = old;
|
|
return FALSE;
|
|
}
|
|
} else {
|
|
dPath += '/';
|
|
}
|
|
|
|
dPath += dirName;
|
|
if ( dirName.find('/') >= 0
|
|
|| old == QString::fromLatin1(".")
|
|
|| dirName == QString::fromLatin1("..") ) {
|
|
dPath = cleanDirPath( dPath );
|
|
|
|
/*
|
|
If dPath starts with .., we convert it to absolute to
|
|
avoid infinite looping on
|
|
|
|
QDir dir( "." );
|
|
while ( dir.cdUp() )
|
|
;
|
|
*/
|
|
if ( dPath[0] == QChar('.') && dPath[1] == QChar('.') &&
|
|
(dPath.length() == 2 || dPath[2] == QChar('/')) )
|
|
convertToAbs();
|
|
}
|
|
}
|
|
if ( !exists() ) {
|
|
dPath = old; // regret
|
|
return FALSE;
|
|
}
|
|
dirty = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
/*!
|
|
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.
|
|
|
|
\sa cd(), isReadable(), exists(), path()
|
|
*/
|
|
|
|
bool QDir::cdUp()
|
|
{
|
|
return cd( QString::fromLatin1("..") );
|
|
}
|
|
|
|
/*!
|
|
\fn QString QDir::nameFilter() const
|
|
|
|
Returns the string set by setNameFilter()
|
|
*/
|
|
|
|
/*!
|
|
Sets the name filter used by entryList() and entryInfoList() to \a
|
|
nameFilter.
|
|
|
|
The \a nameFilter is a wildcard (globbing) filter that understands
|
|
"*" and "?" wildcards. (See \link qregexp.html#wildcard-matching
|
|
QRegExp wildcard matching\endlink.) You may specify several filter
|
|
entries all separated by a single space " " or by a semi-colon
|
|
";".
|
|
|
|
For example, if you want entryList() and entryInfoList() to list
|
|
all files ending with either ".cpp" or ".h", you would use either
|
|
dir.setNameFilter("*.cpp *.h") or dir.setNameFilter("*.cpp;*.h").
|
|
|
|
\sa nameFilter(), setFilter()
|
|
*/
|
|
|
|
void QDir::setNameFilter( const QString &nameFilter )
|
|
{
|
|
nameFilt = nameFilter;
|
|
if ( nameFilt.isEmpty() )
|
|
nameFilt = QString::fromLatin1("*");
|
|
dirty = TRUE;
|
|
}
|
|
|
|
/*!
|
|
\fn QDir::FilterSpec QDir::filter() const
|
|
|
|
Returns the value set by setFilter()
|
|
*/
|
|
|
|
/*!
|
|
\enum QDir::FilterSpec
|
|
|
|
This enum describes the filtering options available to QDir, e.g.
|
|
for entryList() and entryInfoList(). The filter value is specified
|
|
by OR-ing together values from the following list:
|
|
|
|
\value Dirs List directories only.
|
|
\value Files List files only.
|
|
\value Drives List disk drives (ignored under Unix).
|
|
\value NoSymLinks Do not list symbolic links (ignored by operating
|
|
systems that don't support symbolic links).
|
|
\value All List directories, files, drives and symlinks (this does not list
|
|
broken symlinks unless you specify System).
|
|
\value TypeMask A mask for the the Dirs, Files, Drives and
|
|
NoSymLinks flags.
|
|
\value Readable List files for which the application has read access.
|
|
\value Writable List files for which the application has write access.
|
|
\value Executable List files for which the application has execute
|
|
access. Executables needs to be combined with Dirs or Files.
|
|
\value RWEMask A mask for the Readable, Writable and Executable flags.
|
|
\value Modified Only list files that have been modified (ignored
|
|
under Unix).
|
|
\value Hidden List hidden files (on Unix, files starting with a .).
|
|
\value System List system files (on Unix, FIFOs, sockets and
|
|
device files)
|
|
\value AccessMask A mask for the Readable, Writable, Executable
|
|
Modified, Hidden and System flags
|
|
\value DefaultFilter Internal flag.
|
|
|
|
If you do not set any of \c Readable, \c Writable or \c
|
|
Executable, QDir will set all three of them. This makes the
|
|
default easy to write and at the same time useful.
|
|
|
|
Examples: \c Readable|Writable means list all files for which the
|
|
application has read access, write access or both. \c Dirs|Drives
|
|
means list drives, directories, all files that the application can
|
|
read, write or execute, and also symlinks to such
|
|
files/directories.
|
|
*/
|
|
|
|
|
|
/*!
|
|
Sets the filter used by entryList() and entryInfoList() to \a
|
|
filterSpec. The filter is used to specify the kind of files that
|
|
should be returned by entryList() and entryInfoList(). See
|
|
\l{QDir::FilterSpec}.
|
|
|
|
\sa filter(), setNameFilter()
|
|
*/
|
|
|
|
void QDir::setFilter( int filterSpec )
|
|
{
|
|
if ( filtS == (FilterSpec) filterSpec )
|
|
return;
|
|
filtS = (FilterSpec) filterSpec;
|
|
dirty = TRUE;
|
|
}
|
|
|
|
/*!
|
|
\fn QDir::SortSpec QDir::sorting() const
|
|
|
|
Returns the value set by setSorting()
|
|
|
|
\sa setSorting() SortSpec
|
|
*/
|
|
|
|
/*!
|
|
\enum QDir::SortSpec
|
|
|
|
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:
|
|
|
|
\value Name Sort by name.
|
|
\value Time Sort by time (modification time).
|
|
\value Size Sort by file size.
|
|
\value Unsorted Do not sort.
|
|
\value SortByMask A mask for Name, Time and Size.
|
|
|
|
\value DirsFirst Put the directories first, then the files.
|
|
\value Reversed Reverse the sort order.
|
|
\value IgnoreCase Sort case-insensitively.
|
|
\value LocaleAware Sort names using locale aware compares
|
|
\value DefaultSort Internal flag.
|
|
|
|
You can only specify one of the first four.
|
|
|
|
If you specify both \c DirsFirst and \c Reversed, directories are
|
|
still put first, but in reverse order; the files will be listed
|
|
after the directories, again in reverse order.
|
|
*/
|
|
|
|
// ### Unsorted+DirsFirst ? Unsorted+Reversed?
|
|
|
|
/*!
|
|
Sets the sort order used by entryList() and entryInfoList().
|
|
|
|
The \a sortSpec is specified by OR-ing values from the enum
|
|
\l{QDir::SortSpec}.
|
|
|
|
\sa sorting() SortSpec
|
|
*/
|
|
|
|
void QDir::setSorting( int sortSpec )
|
|
{
|
|
if ( sortS == (SortSpec) sortSpec )
|
|
return;
|
|
sortS = (SortSpec) sortSpec;
|
|
dirty = TRUE;
|
|
}
|
|
|
|
/*!
|
|
\fn bool QDir::matchAllDirs() const
|
|
|
|
Returns the value set by setMatchAllDirs()
|
|
|
|
\sa setMatchAllDirs()
|
|
*/
|
|
|
|
/*!
|
|
If \a enable is TRUE then all directories are included (e.g. in
|
|
entryList()), and the nameFilter() is only applied to the files.
|
|
If \a enable is FALSE then the nameFilter() is applied to both
|
|
directories and files.
|
|
|
|
\sa matchAllDirs()
|
|
*/
|
|
|
|
void QDir::setMatchAllDirs( bool enable )
|
|
{
|
|
if ( (bool)allDirs == enable )
|
|
return;
|
|
allDirs = enable;
|
|
dirty = TRUE;
|
|
}
|
|
|
|
|
|
/*!
|
|
Returns the total number of directories and files that were found.
|
|
|
|
Equivalent to entryList().count().
|
|
|
|
\sa operator[](), entryList()
|
|
*/
|
|
|
|
uint QDir::count() const
|
|
{
|
|
return (uint)entryList().count();
|
|
}
|
|
|
|
/*!
|
|
Returns the file name at position \a index in the list of file
|
|
names. Equivalent to entryList().at(index).
|
|
|
|
Returns a QString::null if the \a index is out of range or if the
|
|
entryList() function failed.
|
|
|
|
\sa count(), entryList()
|
|
*/
|
|
|
|
QString QDir::operator[]( int index ) const
|
|
{
|
|
entryList();
|
|
return fList && index >= 0 && index < (int)fList->count() ?
|
|
(*fList)[index] : QString::null;
|
|
}
|
|
|
|
|
|
/*!
|
|
\obsolete
|
|
This function is included to easy porting from Qt 1.x to Qt 2.0,
|
|
it is the same as entryList(), but encodes the filenames as 8-bit
|
|
strings using QFile::encodedName().
|
|
|
|
It is more efficient to use entryList().
|
|
*/
|
|
QStrList QDir::encodedEntryList( int filterSpec, int sortSpec ) const
|
|
{
|
|
QStrList r;
|
|
QStringList l = entryList(filterSpec,sortSpec);
|
|
for ( QStringList::Iterator it = l.begin(); it != l.end(); ++it ) {
|
|
r.append( QFile::encodeName(*it) );
|
|
}
|
|
return r;
|
|
}
|
|
|
|
/*!
|
|
\obsolete
|
|
\overload
|
|
This function is included to easy porting from Qt 1.x to Qt 2.0,
|
|
it is the same as entryList(), but encodes the filenames as 8-bit
|
|
strings using QFile::encodedName().
|
|
|
|
It is more efficient to use entryList().
|
|
*/
|
|
QStrList QDir::encodedEntryList( const QString &nameFilter,
|
|
int filterSpec,
|
|
int sortSpec ) const
|
|
{
|
|
QStrList r;
|
|
QStringList l = entryList(nameFilter,filterSpec,sortSpec);
|
|
for ( QStringList::Iterator it = l.begin(); it != l.end(); ++it ) {
|
|
r.append( QFile::encodeName(*it) );
|
|
}
|
|
return r;
|
|
}
|
|
|
|
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns a list of the names of all the files and directories in
|
|
the directory, ordered in accordance with setSorting() and
|
|
filtered in accordance with setFilter() and setNameFilter().
|
|
|
|
The filter and sorting specifications can be overridden using the
|
|
\a filterSpec and \a sortSpec arguments.
|
|
|
|
Returns an empty list if the directory is unreadable or does not
|
|
exist.
|
|
|
|
\sa entryInfoList(), setNameFilter(), setSorting(), setFilter()
|
|
*/
|
|
|
|
QStringList QDir::entryList( int filterSpec, int sortSpec ) const
|
|
{
|
|
if ( !dirty && filterSpec == (int)DefaultFilter &&
|
|
sortSpec == (int)DefaultSort )
|
|
return *fList;
|
|
return entryList( nameFilt, filterSpec, sortSpec );
|
|
}
|
|
|
|
/*!
|
|
Returns a list of the names of all the files and directories in
|
|
the directory, ordered in accordance with setSorting() and
|
|
filtered in accordance with setFilter() and setNameFilter().
|
|
|
|
The filter and sorting specifications can be overridden using the
|
|
\a nameFilter, \a filterSpec and \a sortSpec arguments.
|
|
|
|
Returns an empty list if the directory is unreadable or does not
|
|
exist.
|
|
|
|
\sa entryInfoList(), setNameFilter(), setSorting(), setFilter()
|
|
*/
|
|
|
|
QStringList QDir::entryList( const QString &nameFilter,
|
|
int filterSpec, int sortSpec ) const
|
|
{
|
|
if ( filterSpec == (int)DefaultFilter )
|
|
filterSpec = filtS;
|
|
if ( sortSpec == (int)DefaultSort )
|
|
sortSpec = sortS;
|
|
QDir *that = (QDir*)this; // mutable function
|
|
if ( that->readDirEntries(nameFilter, filterSpec, sortSpec) ) {
|
|
if ( that->fList )
|
|
return *that->fList;
|
|
}
|
|
return QStringList();
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns a list of QFileInfo objects for all the files and
|
|
directories in the directory, ordered in accordance with
|
|
setSorting() and filtered in accordance with setFilter() and
|
|
setNameFilter().
|
|
|
|
The filter and sorting specifications can be overridden using the
|
|
\a filterSpec and \a sortSpec arguments.
|
|
|
|
Returns 0 if the directory is unreadable or does not exist.
|
|
|
|
The returned pointer is a const pointer to a QFileInfoList. The
|
|
list is owned by the QDir object and will be reused on the next
|
|
call to entryInfoList() for the same QDir instance. If you want to
|
|
keep the entries of the list after a subsequent call to this
|
|
function you must copy them.
|
|
|
|
Note: QFileInfoList is really a QPtrList<QFileInfo>.
|
|
|
|
\sa entryList(), setNameFilter(), setSorting(), setFilter()
|
|
*/
|
|
|
|
const QFileInfoList *QDir::entryInfoList( int filterSpec, int sortSpec ) const
|
|
{
|
|
if ( !dirty && filterSpec == (int)DefaultFilter &&
|
|
sortSpec == (int)DefaultSort )
|
|
return fiList;
|
|
return entryInfoList( nameFilt, filterSpec, sortSpec );
|
|
}
|
|
|
|
/*!
|
|
Returns a list of QFileInfo objects for all the files and
|
|
directories in the directory, ordered in accordance with
|
|
setSorting() and filtered in accordance with setFilter() and
|
|
setNameFilter().
|
|
|
|
The filter and sorting specifications can be overridden using the
|
|
\a nameFilter, \a filterSpec and \a sortSpec arguments.
|
|
|
|
Returns 0 if the directory is unreadable or does not exist.
|
|
|
|
The returned pointer is a const pointer to a QFileInfoList. The
|
|
list is owned by the QDir object and will be reused on the next
|
|
call to entryInfoList() for the same QDir instance. If you want to
|
|
keep the entries of the list after a subsequent call to this
|
|
function you must copy them.
|
|
|
|
Note: QFileInfoList is really a QPtrList<QFileInfo>.
|
|
|
|
\sa entryList(), setNameFilter(), setSorting(), setFilter()
|
|
*/
|
|
|
|
const QFileInfoList *QDir::entryInfoList( const QString &nameFilter,
|
|
int filterSpec, int sortSpec ) const
|
|
{
|
|
if ( filterSpec == (int)DefaultFilter )
|
|
filterSpec = filtS;
|
|
if ( sortSpec == (int)DefaultSort )
|
|
sortSpec = sortS;
|
|
QDir *that = (QDir*)this; // mutable function
|
|
if ( that->readDirEntries(nameFilter, filterSpec, sortSpec) )
|
|
return that->fiList;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns TRUE if the \e directory exists; otherwise returns FALSE.
|
|
(If a file with the same name is found this function will return
|
|
FALSE).
|
|
|
|
\sa QFileInfo::exists(), QFile::exists()
|
|
*/
|
|
|
|
bool QDir::exists() const
|
|
{
|
|
QFileInfo fi( dPath );
|
|
return fi.exists() && fi.isDir();
|
|
}
|
|
|
|
/*!
|
|
Returns TRUE if the directory path is relative to the current
|
|
directory and returns FALSE if the path is absolute (e.g. under
|
|
UNIX a path is relative if it does not start with a "/").
|
|
|
|
\sa convertToAbs()
|
|
*/
|
|
|
|
bool QDir::isRelative() const
|
|
{
|
|
return isRelativePath( dPath );
|
|
}
|
|
|
|
/*!
|
|
Converts the directory path to an absolute path. If it is already
|
|
absolute nothing is done.
|
|
|
|
\sa isRelative()
|
|
*/
|
|
|
|
void QDir::convertToAbs()
|
|
{
|
|
dPath = absPath();
|
|
}
|
|
|
|
/*!
|
|
Makes a copy of QDir \a d and assigns it to this QDir.
|
|
*/
|
|
|
|
QDir &QDir::operator=( const QDir &d )
|
|
{
|
|
dPath = d.dPath;
|
|
delete fList;
|
|
fList = 0;
|
|
delete fiList;
|
|
fiList = 0;
|
|
nameFilt = d.nameFilt;
|
|
dirty = TRUE;
|
|
allDirs = d.allDirs;
|
|
filtS = d.filtS;
|
|
sortS = d.sortS;
|
|
return *this;
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Sets the directory path to be the given \a path.
|
|
*/
|
|
|
|
QDir &QDir::operator=( const QString &path )
|
|
{
|
|
dPath = cleanDirPath( path );
|
|
dirty = TRUE;
|
|
return *this;
|
|
}
|
|
|
|
|
|
/*!
|
|
\fn bool QDir::operator!=( const QDir &d ) const
|
|
|
|
Returns TRUE if directory \a d and this directory have different
|
|
paths or different sort or filter settings; otherwise returns
|
|
FALSE.
|
|
|
|
Example:
|
|
\code
|
|
// The current directory is "/usr/local"
|
|
QDir d1( "/usr/local/bin" );
|
|
QDir d2( "bin" );
|
|
if ( d1 != d2 )
|
|
qDebug( "They differ" );
|
|
\endcode
|
|
*/
|
|
|
|
/*!
|
|
Returns TRUE if directory \a d and this directory have the same
|
|
path and their sort and filter settings are the same; otherwise
|
|
returns FALSE.
|
|
|
|
Example:
|
|
\code
|
|
// The current directory is "/usr/local"
|
|
QDir d1( "/usr/local/bin" );
|
|
QDir d2( "bin" );
|
|
d2.convertToAbs();
|
|
if ( d1 == d2 )
|
|
qDebug( "They're the same" );
|
|
\endcode
|
|
*/
|
|
|
|
bool QDir::operator==( const QDir &d ) const
|
|
{
|
|
return dPath == d.dPath &&
|
|
nameFilt == d.nameFilt &&
|
|
allDirs == d.allDirs &&
|
|
filtS == d.filtS &&
|
|
sortS == d.sortS;
|
|
}
|
|
|
|
|
|
/*!
|
|
Removes the file, \a fileName.
|
|
|
|
If \a acceptAbsPath is TRUE a path starting with separator "/"
|
|
will remove the file with the absolute path. If \a acceptAbsPath
|
|
is FALSE any number of separators at the beginning of \a fileName
|
|
will be removed and the resultant file name will be removed.
|
|
|
|
Returns TRUE if the file is removed successfully; otherwise
|
|
returns FALSE.
|
|
*/
|
|
|
|
bool QDir::remove( const QString &fileName, bool acceptAbsPath )
|
|
{
|
|
if ( fileName.isEmpty() ) {
|
|
#if defined(QT_CHECK_NULL)
|
|
qWarning( "QDir::remove: Empty or null file name" );
|
|
#endif
|
|
return FALSE;
|
|
}
|
|
QString p = filePath( fileName, acceptAbsPath );
|
|
return QFile::remove( p );
|
|
}
|
|
|
|
/*!
|
|
Checks for the existence of the file \a name.
|
|
|
|
If \a acceptAbsPath is TRUE a path starting with separator "/"
|
|
will check the file with the absolute path. If \a acceptAbsPath is
|
|
FALSE any number of separators at the beginning of \a name will be
|
|
removed and the resultant file name will be checked.
|
|
|
|
Returns TRUE if the file exists; otherwise returns FALSE.
|
|
|
|
\sa QFileInfo::exists(), QFile::exists()
|
|
*/
|
|
|
|
bool QDir::exists( const QString &name, bool acceptAbsPath ) //### const in 4.0
|
|
{
|
|
if ( name.isEmpty() ) {
|
|
#if defined(QT_CHECK_NULL)
|
|
qWarning( "QDir::exists: Empty or null file name" );
|
|
#endif
|
|
return FALSE;
|
|
}
|
|
QString tmp = filePath( name, acceptAbsPath );
|
|
return QFile::exists( tmp );
|
|
}
|
|
|
|
/*!
|
|
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.
|
|
*/
|
|
|
|
char QDir::separator()
|
|
{
|
|
#if defined(Q_OS_UNIX)
|
|
return '/';
|
|
#elif defined (Q_FS_FAT) || defined(Q_WS_WIN)
|
|
return '\\';
|
|
#elif defined (Q_OS_MAC)
|
|
return ':';
|
|
#else
|
|
return '/';
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
Returns the application's current directory.
|
|
|
|
Use path() to access a QDir object's path.
|
|
|
|
\sa currentDirPath(), QDir::QDir()
|
|
*/
|
|
|
|
QDir QDir::current()
|
|
{
|
|
return QDir( currentDirPath() );
|
|
}
|
|
|
|
/*!
|
|
Returns the home directory.
|
|
|
|
Under Windows the \c HOME environment variable is used. If this
|
|
does not exist the \c USERPROFILE environment variable is used. If
|
|
that does not exist the path is formed by concatenating the \c
|
|
HOMEDRIVE and \c HOMEPATH environment variables. If they don't
|
|
exist the rootDirPath() is used (this uses the \c SystemDrive
|
|
environment variable). If none of these exist "C:\" is used.
|
|
|
|
Under non-Windows operating systems the \c HOME environment
|
|
variable is used if it exists, otherwise rootDirPath() is used.
|
|
|
|
\sa homeDirPath()
|
|
*/
|
|
|
|
QDir QDir::home()
|
|
{
|
|
return QDir( homeDirPath() );
|
|
}
|
|
|
|
/*!
|
|
Returns the root directory.
|
|
|
|
\sa rootDirPath() drives()
|
|
*/
|
|
|
|
QDir QDir::root()
|
|
{
|
|
return QDir( rootDirPath() );
|
|
}
|
|
|
|
/*!
|
|
\fn QString QDir::homeDirPath()
|
|
|
|
Returns the absolute path of the user's home directory.
|
|
|
|
\sa home()
|
|
*/
|
|
|
|
QValueList<QRegExp> qt_makeFilterList( const QString &filter )
|
|
{
|
|
QValueList<QRegExp> regExps;
|
|
if ( filter.isEmpty() )
|
|
return regExps;
|
|
|
|
QChar sep( ';' );
|
|
int i = filter.find( sep, 0 );
|
|
if ( i == -1 && filter.find( ' ', 0 ) != -1 )
|
|
sep = QChar( ' ' );
|
|
|
|
QStringList list = QStringList::split( sep, filter );
|
|
QStringList::Iterator it = list.begin();
|
|
while ( it != list.end() ) {
|
|
regExps << QRegExp( (*it).stripWhiteSpace(), CaseSensitiveFS, TRUE );
|
|
++it;
|
|
}
|
|
return regExps;
|
|
}
|
|
|
|
bool qt_matchFilterList( const QValueList<QRegExp>& filters,
|
|
const QString &fileName )
|
|
{
|
|
QValueList<QRegExp>::ConstIterator rit = filters.begin();
|
|
while ( rit != filters.end() ) {
|
|
if ( (*rit).exactMatch(fileName) )
|
|
return TRUE;
|
|
++rit;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns TRUE if the \a fileName matches any of the wildcard (glob)
|
|
patterns in the list of \a filters; otherwise returns FALSE.
|
|
|
|
(See \link qregexp.html#wildcard-matching QRegExp wildcard
|
|
matching.\endlink)
|
|
\sa QRegExp::match()
|
|
*/
|
|
|
|
bool QDir::match( const QStringList &filters, const QString &fileName )
|
|
{
|
|
QStringList::ConstIterator sit = filters.begin();
|
|
while ( sit != filters.end() ) {
|
|
QRegExp rx( *sit, CaseSensitiveFS, TRUE );
|
|
if ( rx.exactMatch(fileName) )
|
|
return TRUE;
|
|
++sit;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*!
|
|
Returns TRUE if the \a fileName matches the wildcard (glob)
|
|
pattern \a filter; otherwise returns FALSE. The \a filter may
|
|
contain multiple patterns separated by spaces or semicolons.
|
|
|
|
(See \link qregexp.html#wildcard-matching QRegExp wildcard
|
|
matching.\endlink)
|
|
\sa QRegExp::match()
|
|
*/
|
|
|
|
bool QDir::match( const QString &filter, const QString &fileName )
|
|
{
|
|
return qt_matchFilterList( qt_makeFilterList(filter), fileName );
|
|
}
|
|
|
|
|
|
/*!
|
|
Removes all multiple directory separators "/" and resolves any
|
|
"."s or ".."s found in the path, \a filePath.
|
|
|
|
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".
|
|
|
|
\sa absPath() canonicalPath()
|
|
*/
|
|
|
|
QString QDir::cleanDirPath( const QString &filePath )
|
|
{
|
|
QString name = filePath;
|
|
QString newPath;
|
|
|
|
if ( name.isEmpty() )
|
|
return name;
|
|
|
|
slashify( name );
|
|
|
|
bool addedSeparator = isRelativePath( name );
|
|
if ( addedSeparator )
|
|
name.insert( 0, '/' );
|
|
|
|
int ePos, pos, upLevel;
|
|
|
|
pos = ePos = name.length();
|
|
upLevel = 0;
|
|
int len;
|
|
|
|
while ( pos && (pos = name.findRev('/', pos - 1)) != -1 ) {
|
|
len = ePos - pos - 1;
|
|
if ( len == 2 && name.at(pos + 1) == '.'
|
|
&& name.at(pos + 2) == '.' ) {
|
|
upLevel++;
|
|
} else {
|
|
if ( len != 0 && (len != 1 || name.at(pos + 1) != '.') ) {
|
|
if ( !upLevel )
|
|
newPath = QString::fromLatin1("/")
|
|
+ name.mid(pos + 1, len) + newPath;
|
|
else
|
|
upLevel--;
|
|
}
|
|
}
|
|
ePos = pos;
|
|
}
|
|
if ( addedSeparator ) {
|
|
while ( upLevel-- )
|
|
newPath.insert( 0, QString::fromLatin1("/..") );
|
|
if ( !newPath.isEmpty() )
|
|
newPath.remove( (uint)0, (uint)1 );
|
|
else
|
|
newPath = QString::fromLatin1(".");
|
|
} else {
|
|
if ( newPath.isEmpty() )
|
|
newPath = QString::fromLatin1("/");
|
|
#if defined(Q_FS_FAT) || defined(Q_OS_OS2EMX)
|
|
if ( name[0] == '/' ) {
|
|
if ( name[1] == '/' ) // "\\machine\x\ ..."
|
|
newPath.insert( 0, '/' );
|
|
} else {
|
|
newPath = name.left(2) + newPath;
|
|
}
|
|
#endif
|
|
}
|
|
return newPath;
|
|
}
|
|
|
|
int qt_cmp_si_sortSpec;
|
|
|
|
#if defined(Q_C_CALLBACKS)
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifdef Q_OS_TEMP
|
|
int __cdecl qt_cmp_si( const void *n1, const void *n2 )
|
|
#else
|
|
int qt_cmp_si( const void *n1, const void *n2 )
|
|
#endif
|
|
{
|
|
if ( !n1 || !n2 )
|
|
return 0;
|
|
|
|
QDirSortItem* f1 = (QDirSortItem*)n1;
|
|
QDirSortItem* f2 = (QDirSortItem*)n2;
|
|
|
|
if ( qt_cmp_si_sortSpec & QDir::DirsFirst )
|
|
if ( f1->item->isDir() != f2->item->isDir() )
|
|
return f1->item->isDir() ? -1 : 1;
|
|
|
|
int r = 0;
|
|
int sortBy = qt_cmp_si_sortSpec & QDir::SortByMask;
|
|
|
|
switch ( sortBy ) {
|
|
case QDir::Time:
|
|
r = f1->item->lastModified().secsTo(f2->item->lastModified());
|
|
break;
|
|
case QDir::Size:
|
|
r = f2->item->size() - f1->item->size();
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
|
|
if ( r == 0 && sortBy != QDir::Unsorted ) {
|
|
// Still not sorted - sort by name
|
|
bool ic = qt_cmp_si_sortSpec & QDir::IgnoreCase;
|
|
|
|
if ( f1->filename_cache.isNull() )
|
|
f1->filename_cache = ic ? f1->item->fileName().lower()
|
|
: f1->item->fileName();
|
|
if ( f2->filename_cache.isNull() )
|
|
f2->filename_cache = ic ? f2->item->fileName().lower()
|
|
: f2->item->fileName();
|
|
|
|
r = qt_cmp_si_sortSpec & QDir::LocaleAware
|
|
? f1->filename_cache.localeAwareCompare(f2->filename_cache)
|
|
: f1->filename_cache.compare(f2->filename_cache);
|
|
}
|
|
|
|
if ( r == 0 ) {
|
|
// Enforce an order - the order the items appear in the array
|
|
r = (char*)n1 - (char*)n2;
|
|
}
|
|
|
|
if ( qt_cmp_si_sortSpec & QDir::Reversed )
|
|
return -r;
|
|
else
|
|
return r;
|
|
}
|
|
|
|
#if defined(Q_C_CALLBACKS)
|
|
}
|
|
#endif
|
|
|
|
/*! \internal
|
|
Detaches all internal data.
|
|
*/
|
|
void QDir::detach()
|
|
{
|
|
// deepcopy
|
|
dPath = QDeepCopy<QString>(dPath);
|
|
nameFilt = QDeepCopy<QString>(nameFilt);
|
|
|
|
if ( fList )
|
|
*fList = QDeepCopy<QStringList>( *fList );
|
|
|
|
if ( fiList ) {
|
|
QFileInfoList *newlist = new QFileInfoList( *fiList );
|
|
delete fiList;
|
|
fiList = newlist;
|
|
}
|
|
}
|
|
|
|
#endif // QT_NO_DIR
|