m_nameEdit = new QLineEdit(this);

    m_phoneEdit = new QLineEdit(this);

    m_emailEdit = new QLineEdit(this);

    m_addressEdit = new QLineEdit(this);

    QLabel *nameLabel = new QLabel(tr("Name"), this);

    QLabel *phoneLabel = new QLabel(tr("Phone"), this);

    QLabel *emailLabel = new QLabel(tr("Email"), this);

    QLabel *addressLabel = new QLabel(tr("Address"), this);

    QFormLayout *formLayout = new QFormLayout;

    if (QApplication::desktop()->availableGeometry().width() < 360) {

        // Narrow screen: put label on separate line to textbox

        formLayout->addRow(nameLabel);

        formLayout->addRow(m_nameEdit);

        formLayout->addRow(phoneLabel);

        formLayout->addRow(m_phoneEdit);

        formLayout->addRow(emailLabel);

        formLayout->addRow(m_emailEdit);

        formLayout->addRow(addressLabel);

        formLayout->addRow(m_addressEdit);

    } else {

        // Wide screen: put label on same line as textbox

        formLayout->addRow(nameLabel, m_nameEdit);

        formLayout->addRow(phoneLabel, m_phoneEdit);

        formLayout->addRow(emailLabel, m_emailEdit);

        formLayout->addRow(addressLabel, m_addressEdit);

    }

#ifdef Q_OS_SYMBIAN

    m_filterBtn = new QAction(tr("Filter"), this);

    m_filterBtn->setSoftKeyRole(QAction::PositiveSoftKey);

    addAction(m_filterBtn);

    connect(m_filterBtn, SIGNAL(triggered(bool)), this, SLOT(filterClicked()));

    m_cancelBtn = new QAction(tr("Cancel"), this);

    m_cancelBtn->setSoftKeyRole(QAction::NegativeSoftKey);

    addAction(m_cancelBtn);

    connect(m_cancelBtn, SIGNAL(triggered(bool)), this, SLOT(cancelClicked()));

#else

    m_filterBtn = new QPushButton(tr("&Filter"), this);

    m_filterBtn->setDefault(true);

    connect(m_filterBtn, SIGNAL(clicked()), this, SLOT(filterClicked()));

    m_cancelBtn = new QPushButton(tr("&Cancel"), this);

    connect(m_cancelBtn, SIGNAL(clicked()), this, SLOT(cancelClicked()));

    btnLayout->addWidget(m_cancelBtn);

void FilterPage::clearFilter()

    m_name.clear();

    m_phone.clear();

    m_email.clear();

    m_address.clear();

    m_nameEdit->clear();

    m_phoneEdit->clear();

    m_emailEdit->clear();

    m_addressEdit->clear();

    m_currentFilter = QContactIntersectionFilter();

    emit showListPage(m_currentFilter);

    m_name = m_nameEdit->text();

    m_phone = m_phoneEdit->text();

    m_email = m_emailEdit->text();

    m_address = m_addressEdit->text();

    // The intersection filter ensures that non-empty field value must be found in the contact.

    m_currentFilter = QContactIntersectionFilter();

    if (!m_nameEdit->text().isEmpty()) {

        // Search all fields of the name by building a union filter

        QContactUnionFilter nameFilter;

        QStringList nameFields;

        nameFields << QContactName::FieldCustomLabel;

        nameFields << QContactName::FieldFirstName;

        nameFields << QContactName::FieldLastName;

        nameFields << QContactName::FieldMiddleName;

        nameFields << QContactName::FieldPrefix;

        nameFields << QContactName::FieldSuffix;

        foreach (const QString& fieldName, nameFields) {

            QContactDetailFilter subFilter;

            subFilter.setDetailDefinitionName(QContactName::DefinitionName, fieldName);

            subFilter.setValue(m_nameEdit->text());

            subFilter.setMatchFlags(QContactFilter::MatchContains);

            nameFilter.append(subFilter);

        }

        m_currentFilter.append(nameFilter);

    }

    if (!m_phoneEdit->text().isEmpty()) {

        QContactDetailFilter phoneFilter;

        phoneFilter.setDetailDefinitionName(QContactPhoneNumber::DefinitionName,

                                            QContactPhoneNumber::FieldNumber);

        phoneFilter.setValue(m_phoneEdit->text());

        phoneFilter.setMatchFlags(QContactFilter::MatchContains);

        m_currentFilter.append(phoneFilter);

    }

    if (!m_emailEdit->text().isEmpty()) {

        QContactDetailFilter emailFilter;

        emailFilter.setDetailDefinitionName(QContactEmailAddress::DefinitionName,

                                            QContactEmailAddress::FieldEmailAddress);

        emailFilter.setValue(m_emailEdit->text());

        emailFilter.setMatchFlags(QContactFilter::MatchContains);

        m_currentFilter.append(emailFilter);

    }

    if (!m_addressEdit->text().isEmpty()) {

        // Search all fields of the address by building a union filter

        QContactUnionFilter addressFilter;

        QStringList addressFields;

        addressFields << QContactAddress::FieldCountry;

        addressFields << QContactAddress::FieldLocality;

        addressFields << QContactAddress::FieldPostcode;

        addressFields << QContactAddress::FieldPostOfficeBox;

        addressFields << QContactAddress::FieldRegion;

        addressFields << QContactAddress::FieldStreet;

        foreach (const QString& fieldName, addressFields) {

            QContactDetailFilter subFilter;

            subFilter.setDetailDefinitionName(QContactAddress::DefinitionName, fieldName);

            subFilter.setValue(m_addressEdit->text());

            subFilter.setMatchFlags(QContactFilter::MatchContains);

            addressFilter.append(subFilter);

        }

        m_currentFilter.append(addressFilter);

    }

    emit showListPage(m_currentFilter);

void FilterPage::cancelClicked()

{

    m_nameEdit->setText(m_name);

    m_phoneEdit->setText(m_phone);

    m_emailEdit->setText(m_email);

    m_addressEdit->setText(m_address);

    emit showListPage(m_currentFilter);

}