diff options
Diffstat (limited to 'doc/src/snippets/code/doc_src_qt4-tulip.cpp')
| -rw-r--r-- | doc/src/snippets/code/doc_src_qt4-tulip.cpp | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/doc/src/snippets/code/doc_src_qt4-tulip.cpp b/doc/src/snippets/code/doc_src_qt4-tulip.cpp new file mode 100644 index 0000000..83b1210 --- /dev/null +++ b/doc/src/snippets/code/doc_src_qt4-tulip.cpp @@ -0,0 +1,140 @@ +/**************************************************************************** +** +** 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//! [0] +foreach (variable, container) + statement; +//! [0] + + +//! [1] +QList<QString> list; +... +foreach (const QString &str, list) + cout << str.ascii() << endl; +//! [1] + + +//! [2] +QString str; +foreach (str, list) + cout << str.ascii() << endl; +//! [2] + + +//! [3] +// forward // backward +QList<QString> list; QList<QString> list; +... ... +QListIterator<QString> i(list); QListIterator<QString> i(list); +while (i.hasNext()) i.toBack(); + cout << i.next().ascii() << endl; while (i.hasPrev()) + cout << i.prev().ascii() << endl; +//! [3] + + +//! [4] +// forward // backward +QMutableListIterator<int> i(list); QMutableListIterator<int> i(list); +while (i.hasNext()) i.toBack(); + if (i.next() > 128) while (i.hasPrev()) + i.setValue(128); if (i.prev() > 128) + i.setValue(128); +//! [4] + + +//! [5] +// forward // backward +QMutableListIterator<int> i(list); QMutableListIterator<int> i(list); +while (i.hasNext()) i.toBack(); + if (i.next() % 2 != 0) while (i.hasPrev()) + i.remove(); if (i.prev() % 2 != 0) + i.remove(); +//! [5] + + +//! [6] +// STL-style // Java-style +QMap<int, QWidget *>::const_iterator i; QMapIterator<int, QWidget *> i(map); +for (i = map.begin(); i != map.end(); ++i) while (i.findNext(widget)) + if (i.value() == widget) cout << "Found widget " << widget + cout << "Found widget " << widget << " under key " + << " under key " << i.key() << endl; + << i.key() << endl; +//! [6] + + +//! [7] +// STL-style // Java-style +QList<int>::iterator i = list.begin(); QMutableListIterator<int> i(list); +while (i != list.end()) { while (i.hasNext()) { + if (*i == 0) { int val = i.next(); + i = list.erase(i); if (val < 0) + } else { i.setValue(-val); + if (*i < 0) else if (val == 0) + *i = -*i; i.remove(); + ++i; } + } +} +//! [7] + + +//! [8] +QList<double> list; +... +for (int i = 0; i < list.size(); ++i) { + if (list[i] < 0.0) + list[i] = 0.0; +} +//! [8] + + +//! [9] +QMap<QString, int> map; +... +map.value("TIMEOUT", 30); // returns 30 if "TIMEOUT" isn't in the map +//! [9] + + +//! [10] +QMultiMap<QString, int> map; +... +QList<int> values = map.values("TIMEOUT"); +//! [10] |