1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the documentation of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:BSD$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** BSD License Usage 18 ** Alternatively, you may use this file under the terms of the BSD license 19 ** as follows: 20 ** 21 ** "Redistribution and use in source and binary forms, with or without 22 ** modification, are permitted provided that the following conditions are 23 ** met: 24 ** * Redistributions of source code must retain the above copyright 25 ** notice, this list of conditions and the following disclaimer. 26 ** * Redistributions in binary form must reproduce the above copyright 27 ** notice, this list of conditions and the following disclaimer in 28 ** the documentation and/or other materials provided with the 29 ** distribution. 30 ** * Neither the name of The Qt Company Ltd nor the names of its 31 ** contributors may be used to endorse or promote products derived 32 ** from this software without specific prior written permission. 33 ** 34 ** 35 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 38 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 39 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 42 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 43 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 44 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 45 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." 46 ** 47 ** $QT_END_LICENSE$ 48 ** 49 ****************************************************************************/ 50 51 52 //![newstuff] 53 QFileInfo fi("c:/temp/foo"); => fi.absoluteFilePath() => "C:/temp/foo" 54 //![newstuff] 55 56 //! [0] 57 #ifdef Q_OS_UNIX 58 59 QFileInfo info1("/home/bob/bin/untabify"); 60 info1.isSymLink(); // returns true 61 info1.absoluteFilePath(); // returns "/home/bob/bin/untabify" 62 info1.size(); // returns 56201 63 info1.symLinkTarget(); // returns "/opt/pretty++/bin/untabify" 64 65 QFileInfo info2(info1.symLinkTarget()); 66 info2.isSymLink(); // returns false 67 info2.absoluteFilePath(); // returns "/opt/pretty++/bin/untabify" 68 info2.size(); // returns 56201 69 70 #endif 71 //! [0] 72 73 74 //! [1] 75 #ifdef Q_OS_WIN 76 77 QFileInfo info1("C:\\Documents and Settings\\Bob\\untabify.lnk"); 78 info1.isSymLink(); // returns true 79 info1.absoluteFilePath(); // returns "C:/Documents and Settings/Bob/untabify.lnk" 80 info1.size(); // returns 743 81 info1.symLinkTarget(); // returns "C:/Pretty++/untabify" 82 83 QFileInfo info2(info1.symLinkTarget()); 84 info2.isSymLink(); // returns false 85 info2.absoluteFilePath(); // returns "C:/Pretty++/untabify" 86 info2.size(); // returns 63942 87 88 #endif 89 //! [1] 90 91 92 //! [2] 93 QString absolute = "/local/bin"; 94 QString relative = "local/bin"; 95 QFileInfo absFile(absolute); 96 QFileInfo relFile(relative); 97 98 QDir::setCurrent(QDir::rootPath()); 99 // absFile and relFile now point to the same file 100 101 QDir::setCurrent("/tmp"); 102 // absFile now points to "/local/bin", 103 // while relFile points to "/tmp/local/bin" 104 //! [2] 105 106 107 //! [3] 108 QFileInfo fi("/tmp/archive.tar.gz"); 109 QString name = fi.fileName(); // name = "archive.tar.gz" 110 //! [3] 111 112 113 //! [4] 114 QFileInfo fi("/Applications/Safari.app"); 115 QString bundle = fi.bundleName(); // name = "Safari" 116 //! [4] 117 118 119 //! [5] 120 QFileInfo fi("/tmp/archive.tar.gz"); 121 QString base = fi.baseName(); // base = "archive" 122 //! [5] 123 124 125 //! [6] 126 QFileInfo fi("/tmp/archive.tar.gz"); 127 QString base = fi.completeBaseName(); // base = "archive.tar" 128 //! [6] 129 130 131 //! [7] 132 QFileInfo fi("/tmp/archive.tar.gz"); 133 QString ext = fi.completeSuffix(); // ext = "tar.gz" 134 //! [7] 135 136 137 //! [8] 138 QFileInfo fi("/tmp/archive.tar.gz"); 139 QString ext = fi.suffix(); // ext = "gz" 140 //! [8] 141 142 143 //! [9] 144 QFileInfo info(fileName); 145 if (info.isSymLink()) 146 fileName = info.symLinkTarget(); 147 //! [9] 148 149 150 //! [10] 151 QFileInfo fi("/tmp/archive.tar.gz"); 152 if (fi.permission(QFile::WriteUser | QFile::ReadGroup)) 153 qWarning("I can change the file; my group can read the file"); 154 if (fi.permission(QFile::WriteGroup | QFile::WriteOther)) 155 qWarning("The group or others can change the file"); 156 //! [10] 157