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

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** contained in the Technology Preview License Agreement accompanying

** this package.

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

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

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

#include "subscriberdialog.h"

#include "ui_subscriberdialog.h"

#include <qvaluespacesubscriber.h>

#include <QTableWidget>

#include <QListWidget>

#include <QDesktopWidget>

#include <QPushButton>

#include <QSizePolicy>

#endif

#include <QDebug>

SubscriberDialog::SubscriberDialog(QWidget *parent) :

        QDialog(parent),

        ui(new Ui::SubscriberDialog),

        subscriber(0),

        tableWidget(0), listWidget(0)

{

    ui->setupUi(this);

    QPushButton *switchButton =

        ui->buttonBox->addButton(tr("Switch"), QDialogButtonBox::ActionRole);

    connect(switchButton, SIGNAL(clicked()), this, SIGNAL(switchRequested()));

#endif

    QDesktopWidget desktopWidget;

    if (desktopWidget.availableGeometry().width() < 400) {

        // Screen is too small to fit a table widget without scrolling, use a list widget instead.

        listWidget = new QListWidget;

        listWidget->setAlternatingRowColors(true);

        ui->verticalLayout->insertWidget(2, listWidget);

    } else {

        tableWidget = new QTableWidget;

        QStringList headerLabels;

        headerLabels << tr("Key") << tr("Value") << tr("Type");

        tableWidget->setColumnCount(3);

        tableWidget->setHorizontalHeaderLabels(headerLabels);

        tableWidget->horizontalHeader()->setStretchLastSection(true);

        tableWidget->verticalHeader()->setVisible(false);

        ui->verticalLayout->insertWidget(2, tableWidget);

    }

    connect(ui->connectButton, SIGNAL(clicked()), this, SLOT(changeSubscriberPath()));

    changeSubscriberPath();

}

SubscriberDialog::~SubscriberDialog()

{

    delete ui;

}

void SubscriberDialog::changeEvent(QEvent *e)

{

    QDialog::changeEvent(e);

    switch (e->type()) {

    case QEvent::LanguageChange:

        ui->retranslateUi(this);

        break;

    default:

        break;

    }

}

//! [0]

void SubscriberDialog::changeSubscriberPath()

{

    if (listWidget)

        listWidget->clear();

    else if (tableWidget)

        tableWidget->clearContents();

    if (!subscriber)

        subscriber = new QValueSpaceSubscriber(ui->basePath->text(), this);

    else

        subscriber->setPath(ui->basePath->text());

    connect(subscriber, SIGNAL(contentsChanged()), this, SLOT(subscriberChanged()));

    subscriberChanged();

}

//! [0]

//! [1]

void SubscriberDialog::subscriberChanged()

{

    QStringList subPaths = subscriber->subPaths();

    if (listWidget) {

        listWidget->clear();

    } else if (tableWidget) {

        tableWidget->clearContents();

        tableWidget->setRowCount(subPaths.count());

    }

    for (int i = 0; i < subPaths.count(); ++i) {

        QVariant v = subscriber->value(subPaths.at(i));

        if (listWidget) {

            const QString itemTemplate("%1 (%2)\n%3");

            QListWidgetItem *item =

                new QListWidgetItem(itemTemplate.arg(subPaths.at(i), v.typeName(), v.toString()));

            item->setFlags(item->flags() & ~Qt::ItemIsEditable);

            listWidget->addItem(item);

        } else if (tableWidget) {

            QTableWidgetItem *pathItem = new QTableWidgetItem(subPaths.at(i));

            pathItem->setFlags(pathItem->flags() & ~Qt::ItemIsEditable);

            QTableWidgetItem *valueItem = new QTableWidgetItem(v.toString());

            valueItem->setFlags(valueItem->flags() & ~Qt::ItemIsEditable);

            QTableWidgetItem *typeItem = new QTableWidgetItem(v.typeName());

            typeItem->setFlags(typeItem->flags() & ~Qt::ItemIsEditable);

            tableWidget->setItem(i, 0, pathItem);

            tableWidget->setItem(i, 1, valueItem);

            tableWidget->setItem(i, 2, typeItem);

        }

    }

}

//! [1]