/**************************************************************************** ** ** 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] class Employee { public: Employee() : sn( 0 ) { } Employee( const QString& forename, const QString& surname, int salary ) : fn( forename ), sn( surname ), sal( salary ) { } void setSalary( int salary ) { sal = salary; } QString forename() const { return fn; } QString surname() const { return sn; } int salary() const { return sal; } private: QString fn; QString sn; int sal; }; Q3PtrList list; list.setAutoDelete( TRUE ); // the list owns the objects list.append( new Employee("John", "Doe", 50000) ); list.append( new Employee("Jane", "Williams", 80000) ); list.append( new Employee("Tom", "Jones", 60000) ); Employee *employee; for ( employee = list.first(); employee; employee = list.next() ) cout << employee->surname().latin1() << ", " << employee->forename().latin1() << " earns " << employee->salary() << endl; cout << endl; // very inefficient for big lists for ( uint i = 0; i < list.count(); ++i ) if ( list.at(i) ) cout << list.at( i )->surname().latin1() << endl; //! [0] //! [1] Doe, John earns 50000 Williams, Jane earns 80000 Jones, Tom earns 60000 Doe Williams Jones //! [1] //! [2] if ( list.findRef( item ) != -1 ) list.remove(); //! [2] //! [3] Q3PtrList list; list.append( new Employee("John", "Doe", 50000) ); list.append( new Employee("Jane", "Williams", 80000) ); list.append( new Employee("Tom", "Jones", 60000) ); Q3PtrListIterator it( list ); Employee *employee; while ( (employee = it.current()) != 0 ) { ++it; cout << employee->surname().latin1() << ", " << employee->forename().latin1() << " earns " << employee->salary() << endl; } //! [3] //! [4] Doe, John earns 50000 Williams, Jane earns 80000 Jones, Tom earns 60000 //! [4]