/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** 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] QDate d1(1995, 5, 17); // May 17, 1995 QDate d2(1995, 5, 20); // May 20, 1995 d1.daysTo(d2); // returns 3 d2.daysTo(d1); // returns -3 //! [0] //! [1] QDate date = QDate::fromString("1MM12car2003", "d'MM'MMcaryyyy"); // date is 1 December 2003 //! [1] //! [2] QDate date = QDate::fromString("130", "Md"); // invalid //! [2] //! [3] QDate::fromString("1.30", "M.d"); // January 30 1900 QDate::fromString("20000110", "yyyyMMdd"); // January 10, 2000 QDate::fromString("20000110", "yyyyMd"); // January 10, 2000 //! [3] //! [4] QDate::isValid(2002, 5, 17); // true QDate::isValid(2002, 2, 30); // false (Feb 30 does not exist) QDate::isValid(2004, 2, 29); // true (2004 is a leap year) QDate::isValid(2000, 2, 29); // true (2000 is a leap year) QDate::isValid(2006, 2, 29); // false (2006 is not a leap year) QDate::isValid(2100, 2, 29); // false (2100 is not a leap year) QDate::isValid(1202, 6, 6); // true (even though 1202 is pre-Gregorian) //! [4] //! [5] QTime n(14, 0, 0); // n == 14:00:00 QTime t; t = n.addSecs(70); // t == 14:01:10 t = n.addSecs(-70); // t == 13:58:50 t = n.addSecs(10 * 60 * 60 + 5); // t == 00:00:05 t = n.addSecs(-15 * 60 * 60); // t == 23:00:00 //! [5] //! [6] QTime time = QTime::fromString("1mm12car00", "m'mm'hcarss"); // time is 12:01.00 //! [6] //! [7] QTime time = QTime::fromString("00:710", "hh:ms"); // invalid //! [7] //! [8] QTime time = QTime::fromString("1.30", "m.s"); // time is 00:01:30.000 //! [8] //! [9] QTime::isValid(21, 10, 30); // returns true QTime::isValid(22, 5, 62); // returns false //! [9] //! [10] QTime t; t.start(); some_lengthy_task(); qDebug("Time elapsed: %d ms", t.elapsed()); //! [10] //! [11] QDateTime now = QDateTime::currentDateTime(); QDateTime xmas(QDate(now.date().year(), 12, 25), QTime(0, 0)); qDebug("There are %d seconds to Christmas", now.secsTo(xmas)); //! [11] //! [12] QTime time1 = QTime::fromString("131", "HHh"); // time1 is 13:00:00 QTime time1 = QTime::fromString("1apA", "1amAM"); // time1 is 01:00:00 QDateTime dateTime2 = QDateTime::fromString("M1d1y9800:01:02", "'M'M'd'd'y'yyhh:mm:ss"); // dateTime is 1 January 1998 00:01:02 //! [12] //! [13] QDateTime dateTime = QDateTime::fromString("130", "Mm"); // invalid //! [13] //! [14] QDateTime dateTime = QDateTime::fromString("1.30.1", "M.d.s"); // dateTime is January 30 in 1900 at 00:00:01. //! [14]