Qt:Документация 4.3.2/itemviews-simplewidgetmapper-window-cpp
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[править] Файл примера window.cpp
itemviews/simplewidgetmapper/window.cpp
/**************************************************************************** ** ** Copyright (C) 2004-2007 Trolltech ASA. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of ** this file. Please review the following information to ensure GNU ** General Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/ ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** In addition, as a special exception, Trolltech gives you certain ** additional rights. These rights are described in the Trolltech GPL ** Exception version 1.0, which can be found at ** http://www.trolltech.com/products/qt/gplexception/ and in the file ** GPL_EXCEPTION.txt in this package. ** ** In addition, as a special exception, Trolltech, as the sole copyright ** holder for Qt Designer, grants users of the Qt/Eclipse Integration ** plug-in the right for the Qt/Eclipse Integration to link to ** functionality provided by Qt Designer and its related libraries. ** ** Trolltech reserves all rights not expressly granted herein. ** ** Trolltech ASA (c) 2007 ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ****************************************************************************/ #include <QtGui> #include "window.h" Window::Window(QWidget *parent) : QWidget(parent) { setupModel(); nameLabel = new QLabel(tr("Na&me:")); nameEdit = new QLineEdit(); addressLabel = new QLabel(tr("&Address:")); addressEdit = new QTextEdit(); ageLabel = new QLabel(tr("A&ge (in years):")); ageSpinBox = new QSpinBox(); nextButton = new QPushButton(tr("&Next")); previousButton = new QPushButton(tr("&Previous")); nameLabel->setBuddy(nameEdit); addressLabel->setBuddy(addressEdit); ageLabel->setBuddy(ageSpinBox); mapper = new QDataWidgetMapper(this); mapper->setModel(model); mapper->addMapping(nameEdit, 0); mapper->addMapping(addressEdit, 1); mapper->addMapping(ageSpinBox, 2); connect(previousButton, SIGNAL(clicked()), mapper, SLOT(toPrevious())); connect(nextButton, SIGNAL(clicked()), mapper, SLOT(toNext())); connect(mapper, SIGNAL(currentIndexChanged(int)), this, SLOT(updateButtons(int))); QGridLayout *layout = new QGridLayout(); layout->addWidget(nameLabel, 0, 0, 1, 1); layout->addWidget(nameEdit, 0, 1, 1, 1); layout->addWidget(previousButton, 0, 2, 1, 1); layout->addWidget(addressLabel, 1, 0, 1, 1); layout->addWidget(addressEdit, 1, 1, 2, 1); layout->addWidget(nextButton, 1, 2, 1, 1); layout->addWidget(ageLabel, 3, 0, 1, 1); layout->addWidget(ageSpinBox, 3, 1, 1, 1); setLayout(layout); setWindowTitle(tr("Simple Widget Mapper")); mapper->toFirst(); } void Window::setupModel() { model = new QStandardItemModel(5, 3, this); QStringList names; names << "Alice" << "Bob" << "Carol" << "Donald" << "Emma"; QStringList addresses; addresses << "<qt>123 Main Street<br/>Market Town</qt>" << "<qt>PO Box 32<br/>Mail Handling Service" "<br/>Service City</qt>" << "<qt>The Lighthouse<br/>Remote Island</qt>" << "<qt>47338 Park Avenue<br/>Big City</qt>" << "<qt>Research Station<br/>Base Camp<br/>Big Mountain</qt>"; QStringList ages; ages << "20" << "31" << "32" << "19" << "26"; for (int row = 0; row < 5; ++row) { QStandardItem *item = new QStandardItem(names[row]); model->setItem(row, 0, item); item = new QStandardItem(addresses[row]); model->setItem(row, 1, item); item = new QStandardItem(ages[row]); model->setItem(row, 2, item); } } void Window::updateButtons(int row) { previousButton->setEnabled(row > 0); nextButton->setEnabled(row < model->rowCount() - 1); }
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