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

    41 

    42 #include "informationwindow.h"

    43 

    44 //! [0]

    45 InformationWindow::InformationWindow(int id, QSqlRelationalTableModel *offices,

    46                                      QWidget *parent)

    47     : QDialog(parent)

    48 {

    49 //! [0] //! [1]

    50     QLabel *locationLabel = new QLabel(tr("Location: "));

    51     QLabel *countryLabel = new QLabel(tr("Country: "));

    52     QLabel *descriptionLabel = new QLabel(tr("Description: "));

    53     QLabel *imageFileLabel = new QLabel(tr("Image file: "));

    54 

    55     createButtons();

    56 

    57     locationText = new QLabel;

    58     countryText = new QLabel;

    59     descriptionEditor = new QTextEdit;

    60 //! [1]

    61 

    62 //! [2]

    63     imageFileEditor = new QComboBox;

    64     imageFileEditor->setModel(offices->relationModel(1));

    65     imageFileEditor->setModelColumn(offices->relationModel(1)->fieldIndex("file"));

    66 //! [2]

    67 

    68 //! [3]

    69     mapper = new QDataWidgetMapper(this);

    70     mapper->setModel(offices);

    71     mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);

    72     mapper->setItemDelegate(new QSqlRelationalDelegate(mapper));

    73     mapper->addMapping(imageFileEditor, 1);

    74     mapper->addMapping(locationText, 2, "text");

    75     mapper->addMapping(countryText, 3, "text");

    76     mapper->addMapping(descriptionEditor, 4);

    77     mapper->setCurrentIndex(id);

    78 //! [3]

    79 

    80 //! [4]

    81     connect(descriptionEditor, SIGNAL(textChanged()),

    82             this, SLOT(enableButtons()));

    83     connect(imageFileEditor, SIGNAL(currentIndexChanged(int)),

    84             this, SLOT(enableButtons()));

    85 

    86     QGridLayout *layout = new QGridLayout;

    87     layout->addWidget(locationLabel, 0, 0, Qt::AlignLeft | Qt::AlignTop);

    88     layout->addWidget(countryLabel, 1, 0, Qt::AlignLeft | Qt::AlignTop);

    89     layout->addWidget(imageFileLabel, 2, 0, Qt::AlignLeft | Qt::AlignTop);

    90     layout->addWidget(descriptionLabel, 3, 0, Qt::AlignLeft | Qt::AlignTop);

    91     layout->addWidget(locationText, 0, 1);

    92     layout->addWidget(countryText, 1, 1);

    93     layout->addWidget(imageFileEditor, 2, 1);

    94     layout->addWidget(descriptionEditor, 3, 1);

    95     layout->addWidget(buttonBox, 4, 0, 1, 2);

    96     setLayout(layout);

    97 

    98     locationId = id;

    99     displayedImage = imageFileEditor->currentText();

   100 

   101     setWindowFlags(Qt::Window);

   102     enableButtons(false);

   103     setWindowTitle(tr("Office: %1").arg(locationText->text()));

   104 #ifndef Q_OS_SYMBIAN

   105     resize(320, sizeHint().height());

   106 #endif

   107 }

   108 //! [4]

   109 

   110 //! [5]

   111 int InformationWindow::id()

   112 {

   113     return locationId;

   114 }

   115 //! [5]

   116 

   117 //! [6]

   118 void InformationWindow::revert()

   119 {

   120     mapper->revert();

   121     enableButtons(false);

   122 }

   123 //! [6]

   124 

   125 //! [7]

   126 void InformationWindow::submit()

   127 {

   128     QString newImage(imageFileEditor->currentText());

   129 

   130     if (displayedImage != newImage) {

   131         displayedImage = newImage;

   132         emit imageChanged(locationId, newImage);

   133     }

   134 

   135     mapper->submit();

   136     mapper->setCurrentIndex(locationId);

   137 

   138     enableButtons(false);

   139 }

   140 //! [7]

   141 

   142 //! [8]

   143 void InformationWindow::createButtons()

   144 {

   145     closeButton = new QPushButton(tr("&Close"));

   146     revertButton = new QPushButton(tr("&Revert"));

   147     submitButton = new QPushButton(tr("&Submit"));

   148 

   149     closeButton->setDefault(true);

   150 

   151     connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));

   152     connect(revertButton, SIGNAL(clicked()), this, SLOT(revert()));

   153     connect(submitButton, SIGNAL(clicked()), this, SLOT(submit()));

   154 //! [8]

   155 

   156 //! [9]

   157     buttonBox = new QDialogButtonBox;

   158     buttonBox->addButton(submitButton, QDialogButtonBox::ResetRole);

   159     buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole);

   160     buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);

   161 }

   162 //! [9]

   163 

   164 //! [10]

   165 void InformationWindow::enableButtons(bool enable)

   166 {

   167     revertButton->setEnabled(enable);

   168     submitButton->setEnabled(enable);

   169 }

   170 //! [10]

   171 

   172