diff options
Diffstat (limited to 'doc/src/snippets/code/src_corelib_io_qdir.cpp')
-rw-r--r-- | doc/src/snippets/code/src_corelib_io_qdir.cpp | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/doc/src/snippets/code/src_corelib_io_qdir.cpp b/doc/src/snippets/code/src_corelib_io_qdir.cpp new file mode 100644 index 0000000000..51262f711c --- /dev/null +++ b/doc/src/snippets/code/src_corelib_io_qdir.cpp @@ -0,0 +1,175 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +void wrapInFunction() +{ + +//! [0] +QDir("/home/user/Documents") +QDir("C:/Documents and Settings") +//! [0] + + +//! [1] +QDir("images/landscape.png") +//! [1] + + +//! [2] +QDir("Documents/Letters/Applications").dirName() // "Applications" +QDir().dirName() // "." +//! [2] + + +//! [3] +QDir directory("Documents/Letters"); +QString path = directory.filePath("contents.txt"); +QString absolutePath = directory.absoluteFilePath("contents.txt"); +//! [3] + + +//! [4] +QDir dir("example"); +if (!dir.exists()) + qWarning("Cannot find the example directory"); +//! [4] + + +//! [5] +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()); +} +//! [5] + + +//! [6] +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". +//! [6] + + +//! [7] +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" +//! [7] + + +//! [8] +QDir::setSearchPaths("icons", QStringList(QDir::homePath() + "/images")); +QDir::setSearchPaths("docs", QStringList(":/embeddedDocuments")); +... +QPixmap pixmap("icons:undo.png"); // will look for undo.png in QDir::homePath() + "/images" +QFile file("docs:design.odf"); // will look in the :/embeddedDocuments resource path +//! [8] + + +//! [9] +QDir dir("/tmp/root_link"); +dir = dir.canonicalPath(); +if (dir.isRoot()) + qWarning("It is a root link"); +//! [9] + + +//! [10] +// The current directory is "/usr/local" +QDir d1("/usr/local/bin"); +QDir d2("bin"); +if (d1 == d2) + qDebug("They're the same"); +//! [10] + + +//! [11] +// The current directory is "/usr/local" +QDir d1("/usr/local/bin"); +d1.setFilter(QDir::Executable); +QDir d2("bin"); +if (d1 != d2) + qDebug("They differ"); +//! [11] + + +//! [12] +C:/Documents and Settings/Username +//! [12] + + +//! [13] +Q_INIT_RESOURCE(myapp); +//! [13] + + +//! [14] +inline void initMyResource() { Q_INIT_RESOURCE(myapp); } + +namespace MyNamespace +{ + ... + + void myFunction() + { + initMyResource(); + } +} +//! [14] + + +//! [15] +Q_CLEANUP_RESOURCE(myapp); +//! [15] + +} |