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

**

** 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 <QtGui>

#include "window.h"

//! [constructor]

Window::Window()

{

    setupUi();

    updateWidgets();

    connect(Phonon::BackendCapabilities::notifier(),

            SIGNAL(capabilitiesChanged()), this, SLOT(updateWidgets()));

    connect(Phonon::BackendCapabilities::notifier(),

            SIGNAL(availableAudioOutputDevicesChanged()), SLOT(updateWidgets()));

}

//! [constructor]

//! [outputDevices]

void Window::updateWidgets()

{

    devicesListView->setModel(new QStandardItemModel());

    Phonon::ObjectDescriptionModel<Phonon::AudioOutputDeviceType> *model =

            new Phonon::ObjectDescriptionModel<Phonon::AudioOutputDeviceType>();

    model->setModelData(Phonon::BackendCapabilities::availableAudioOutputDevices());

    devicesListView->setModel(model);

//! [outputDevices]

//! [mimeTypes]

    mimeListWidget->clear();

    QStringList mimeTypes =

            Phonon::BackendCapabilities::availableMimeTypes();

    foreach (QString mimeType, mimeTypes) {

        QListWidgetItem *item = new QListWidgetItem(mimeListWidget);

        item->setText(mimeType);

    }

//! [mimeTypes]

//! [effects]

    effectsTreeWidget->clear();

    QList<Phonon::EffectDescription> effects =

        Phonon::BackendCapabilities::availableAudioEffects();

    foreach (Phonon::EffectDescription effect, effects) {

        QTreeWidgetItem *item = new QTreeWidgetItem(effectsTreeWidget);

        item->setText(0, tr("Effect"));

        item->setText(1, effect.name());

        item->setText(2, effect.description());

//! [effects]

//! [effectsParameters]

        Phonon::Effect *instance = new Phonon::Effect(effect, this);

        QList<Phonon::EffectParameter> parameters = instance->parameters();

        for (int i = 0; i < parameters.size(); ++i) {

                Phonon::EffectParameter parameter = parameters.at(i);

            QVariant defaultValue = parameter.defaultValue();

            QVariant minimumValue = parameter.minimumValue();

            QVariant maximumValue = parameter.maximumValue();

            QString valueString = QString("%1 / %2 / %3")

                    .arg(defaultValue.toString()).arg(minimumValue.toString())

                    .arg(maximumValue.toString()); 

            QTreeWidgetItem *parameterItem = new QTreeWidgetItem(item);

            parameterItem->setText(0, tr("Parameter"));

            parameterItem->setText(1, parameter.name());

            parameterItem->setText(2, parameter.description());

            parameterItem->setText(3, QVariant::typeToName(parameter.type()));

            parameterItem->setText(4, valueString);

        }

    }

//! [effectsParameters]

    for (int i = 0; i < effectsTreeWidget->columnCount(); ++i) {

        if (i == 0)

            effectsTreeWidget->setColumnWidth(0, 150);

        else if (i == 2)

            effectsTreeWidget->setColumnWidth(2, 350);

        else

            effectsTreeWidget->resizeColumnToContents(i);

    }

}

void Window::setupUi()

{

    setupBackendBox();

    QLayout *layout = new QVBoxLayout;

    layout->addWidget(backendBox);

    setLayout(layout);

    setWindowTitle(tr("Backend Capabilities Example"));

}

void Window::setupBackendBox()

{

    backendBox = new QGroupBox(tr("Backend Capabilities"));

    devicesLabel = new QLabel(tr("Available Audio Devices:"));

    devicesListView = new QListView;

    mimeTypesLabel = new QLabel(tr("Supported MIME Types:"));

    mimeListWidget = new QListWidget;

    effectsLabel = new QLabel(tr("Available Audio Effects:"));

    QStringList headerLabels;

    headerLabels << tr("Type") << tr("Name") << tr("Description") <<

                    tr("Value Type") << tr("Default/Min/Max Values");

    effectsTreeWidget = new QTreeWidget;

    effectsTreeWidget->setHeaderLabels(headerLabels);

    effectsTreeWidget->setColumnCount(5);

    QGridLayout *layout = new QGridLayout;

    layout->addWidget(devicesLabel, 0, 0);

    layout->addWidget(devicesListView, 1, 0);

    layout->addWidget(mimeTypesLabel, 0, 1);

    layout->addWidget(mimeListWidget, 1, 1);

    layout->addWidget(effectsLabel, 2, 0);

    layout->addWidget(effectsTreeWidget, 3, 0, 2, 2);

    layout->setRowStretch(3, 100);

    backendBox = new QGroupBox(tr("Backend Capabilities"));

    backendBox->setLayout(layout);

}