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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the examples of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

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    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 #include "window.h"

    44 

    45 //! [Set up widgets]

    46 Window::Window(QWidget *parent)

    47     : QWidget(parent)

    48 {

    49     setupModel();

    50 

    51     nameLabel = new QLabel(tr("Na&me:"));

    52     nameEdit = new QLineEdit();

    53     addressLabel = new QLabel(tr("&Address:"));

    54     addressEdit = new QTextEdit();

    55     typeLabel = new QLabel(tr("&Type:"));

    56     typeComboBox = new QComboBox();

    57     nextButton = new QPushButton(tr("&Next"));

    58     previousButton = new QPushButton(tr("&Previous"));

    59 

    60     nameLabel->setBuddy(nameEdit);

    61     addressLabel->setBuddy(addressEdit);

    62     typeLabel->setBuddy(typeComboBox);

    63 

    64     typeComboBox->setModel(typeModel);

    65 //! [Set up widgets]

    66 

    67 //! [Set up the mapper]

    68     mapper = new QDataWidgetMapper(this);

    69     mapper->setModel(model);

    70     mapper->addMapping(nameEdit, 0);

    71     mapper->addMapping(addressEdit, 1);

    72     mapper->addMapping(typeComboBox, 2, "currentIndex");

    73 //! [Set up the mapper]

    74 

    75 //! [Set up connections and layouts]

    76     connect(previousButton, SIGNAL(clicked()),

    77             mapper, SLOT(toPrevious()));

    78     connect(nextButton, SIGNAL(clicked()),

    79             mapper, SLOT(toNext()));

    80     connect(mapper, SIGNAL(currentIndexChanged(int)),

    81             this, SLOT(updateButtons(int)));

    82 

    83     QGridLayout *layout = new QGridLayout();

    84     layout->addWidget(nameLabel, 0, 0, 1, 1);

    85     layout->addWidget(nameEdit, 0, 1, 1, 1);

    86     layout->addWidget(previousButton, 0, 2, 1, 1);

    87     layout->addWidget(addressLabel, 1, 0, 1, 1);

    88     layout->addWidget(addressEdit, 1, 1, 2, 1);

    89     layout->addWidget(nextButton, 1, 2, 1, 1);

    90     layout->addWidget(typeLabel, 3, 0, 1, 1);

    91     layout->addWidget(typeComboBox, 3, 1, 1, 1);

    92     setLayout(layout);

    93 

    94     setWindowTitle(tr("Delegate Widget Mapper"));

    95     mapper->toFirst();

    96 }

    97 //! [Set up connections and layouts]

    98 

    99 //! [Set up the model]

   100 void Window::setupModel()

   101 {

   102     QStringList items;

   103     items << tr("Home") << tr("Work") << tr("Other");

   104     typeModel = new QStringListModel(items, this);

   105     

   106     model = new QStandardItemModel(5, 3, this);

   107     QStringList names;

   108     names << "Alice" << "Bob" << "Carol" << "Donald" << "Emma";

   109     QStringList addresses;

   110     addresses << "<qt>123 Main Street<br/>Market Town</qt>"

   111               << "<qt>PO Box 32<br/>Mail Handling Service"

   112                  "<br/>Service City</qt>"

   113               << "<qt>The Lighthouse<br/>Remote Island</qt>"

   114               << "<qt>47338 Park Avenue<br/>Big City</qt>"

   115               << "<qt>Research Station<br/>Base Camp<br/>Big Mountain</qt>";

   116 

   117     QStringList types;

   118     types << "0" << "1" << "2" << "0" << "2";

   119     

   120     for (int row = 0; row < 5; ++row) {

   121       QStandardItem *item = new QStandardItem(names[row]);

   122       model->setItem(row, 0, item);

   123       item = new QStandardItem(addresses[row]);

   124       model->setItem(row, 1, item);

   125       item = new QStandardItem(types[row]);

   126       model->setItem(row, 2, item);

   127     }

   128 }

   129 //! [Set up the model]

   130 

   131 //! [Slot for updating the buttons]

   132 void Window::updateButtons(int row)

   133 {

   134     previousButton->setEnabled(row > 0);

   135     nextButton->setEnabled(row < model->rowCount() - 1);

   136 }

   137 //! [Slot for updating the buttons]