/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

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

**

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

**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#include "informationwindow.h"

//! [0]

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

                                     QWidget *parent)

    : QDialog(parent)

{

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

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

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

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

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

    createButtons();

    locationText = new QLabel;

    countryText = new QLabel;

    descriptionEditor = new QTextEdit;

//! [1]

//! [2]

    imageFileEditor = new QComboBox;

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

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

//! [2]

//! [3]

    mapper = new QDataWidgetMapper(this);

    mapper->setModel(offices);

    mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);

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

    mapper->addMapping(imageFileEditor, 1);

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

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

    mapper->addMapping(descriptionEditor, 4);

    mapper->setCurrentIndex(id);

//! [3]

//! [4]

    connect(descriptionEditor, SIGNAL(textChanged()),

            this, SLOT(enableButtons()));

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

            this, SLOT(enableButtons()));

    QFormLayout *formLayout = new QFormLayout;

    formLayout->addRow(locationLabel, locationText);

    formLayout->addRow(countryLabel, countryText);

    formLayout->addRow(imageFileLabel, imageFileEditor);

    formLayout->addRow(descriptionLabel, descriptionEditor);

    QVBoxLayout *layout = new QVBoxLayout;

    layout->addLayout(formLayout);

    layout->addWidget(buttonBox);

    setLayout(layout);

    locationId = id;

    displayedImage = imageFileEditor->currentText();

    setWindowFlags(Qt::Window);

    enableButtons(false);

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

}

//! [4]

//! [5]

int InformationWindow::id()

{

    return locationId;

}

//! [5]

//! [6]

void InformationWindow::revert()

{

    mapper->revert();

    enableButtons(false);

}

//! [6]

//! [7]

void InformationWindow::submit()

{

    QString newImage(imageFileEditor->currentText());

    if (displayedImage != newImage) {

        displayedImage = newImage;

        emit imageChanged(locationId, newImage);

    }

    mapper->submit();

    mapper->setCurrentIndex(locationId);

    enableButtons(false);

}

//! [7]

//! [8]

void InformationWindow::createButtons()

{

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

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

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

    closeButton->setDefault(true);

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

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

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

//! [8]

//! [9]

    buttonBox = new QDialogButtonBox(this);

    buttonBox->addButton(submitButton, QDialogButtonBox::AcceptRole);

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

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

}

//! [9]

//! [10]

void InformationWindow::enableButtons(bool enable)

{

    revertButton->setEnabled(enable);

    submitButton->setEnabled(enable);

}

//! [10]