/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the examples of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtGui>+
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+
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#include "window.h"+
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+
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//! [constructor]+
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Window::Window()+
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{+
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    setupUi();+
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    updateWidgets();+
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+
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    connect(Phonon::BackendCapabilities::notifier(),+
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            SIGNAL(capabilitiesChanged()), this, SLOT(updateWidgets()));+
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    connect(Phonon::BackendCapabilities::notifier(),+
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            SIGNAL(availableAudioOutputDevicesChanged()), SLOT(updateWidgets()));+
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}+
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//! [constructor]+
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+
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//! [outputDevices]+
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void Window::updateWidgets()+
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{+
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    devicesListView->setModel(new QStandardItemModel());+
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    Phonon::ObjectDescriptionModel<Phonon::AudioOutputDeviceType> *model =+
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            new Phonon::ObjectDescriptionModel<Phonon::AudioOutputDeviceType>();+
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    model->setModelData(Phonon::BackendCapabilities::availableAudioOutputDevices());+
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    devicesListView->setModel(model);+
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//! [outputDevices]+
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+
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//! [mimeTypes]+
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    mimeListWidget->clear();+
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    QStringList mimeTypes =+
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            Phonon::BackendCapabilities::availableMimeTypes();+
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    foreach (QString mimeType, mimeTypes) {+
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        QListWidgetItem *item = new QListWidgetItem(mimeListWidget);+
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        item->setText(mimeType);+
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    }+
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//! [mimeTypes]+
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+
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//! [effects]+
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    effectsTreeWidget->clear();+
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    QList<Phonon::EffectDescription> effects =+
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        Phonon::BackendCapabilities::availableAudioEffects();+
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    foreach (Phonon::EffectDescription effect, effects) {+
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        QTreeWidgetItem *item = new QTreeWidgetItem(effectsTreeWidget);+
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        item->setText(0, tr("Effect"));+
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        item->setText(1, effect.name());+
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        item->setText(2, effect.description());+
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//! [effects]+
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+
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//! [effectsParameters]+
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        Phonon::Effect *instance = new Phonon::Effect(effect, this);+
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        QList<Phonon::EffectParameter> parameters = instance->parameters();+
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        for (int i = 0; i < parameters.size(); ++i) {+
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                Phonon::EffectParameter parameter = parameters.at(i);+
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+
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            QVariant defaultValue = parameter.defaultValue();+
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            QVariant minimumValue = parameter.minimumValue();+
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            QVariant maximumValue = parameter.maximumValue();+
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+
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            QString valueString = QString("%1 / %2 / %3")+
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                    .arg(defaultValue.toString()).arg(minimumValue.toString())+
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                    .arg(maximumValue.toString()); +
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+
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            QTreeWidgetItem *parameterItem = new QTreeWidgetItem(item);+
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            parameterItem->setText(0, tr("Parameter"));+
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            parameterItem->setText(1, parameter.name());+
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            parameterItem->setText(2, parameter.description());+
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            parameterItem->setText(3, QVariant::typeToName(parameter.type()));+
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            parameterItem->setText(4, valueString);+
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        }+
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    }+
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//! [effectsParameters]+
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    for (int i = 0; i < effectsTreeWidget->columnCount(); ++i) {+
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        if (i == 0)+
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            effectsTreeWidget->setColumnWidth(0, 150);+
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        else if (i == 2)+
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            effectsTreeWidget->setColumnWidth(2, 350);+
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        else+
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            effectsTreeWidget->resizeColumnToContents(i);+
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    }+
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}+
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+
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void Window::setupUi()+
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{+
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    setupBackendBox();+
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+
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    QLayout *layout = new QVBoxLayout;+
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    layout->addWidget(backendBox);+
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+
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    setLayout(layout);+
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    setWindowTitle(tr("Backend Capabilities Example"));+
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}+
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+
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void Window::setupBackendBox()+
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{+
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    backendBox = new QGroupBox(tr("Backend Capabilities"));+
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+
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    devicesLabel = new QLabel(tr("Available Audio Devices:"));+
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    devicesListView = new QListView;+
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+
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    mimeTypesLabel = new QLabel(tr("Supported MIME Types:"));+
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    mimeListWidget = new QListWidget;+
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+
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    effectsLabel = new QLabel(tr("Available Audio Effects:"));+
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+
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    QStringList headerLabels;+
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    headerLabels << tr("Type") << tr("Name") << tr("Description") <<+
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                    tr("Value Type") << tr("Default/Min/Max Values");+
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+
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    effectsTreeWidget = new QTreeWidget;+
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    effectsTreeWidget->setHeaderLabels(headerLabels);+
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    effectsTreeWidget->setColumnCount(5);+
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+
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    QGridLayout *layout = new QGridLayout;+
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    layout->addWidget(devicesLabel, 0, 0);+
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    layout->addWidget(devicesListView, 1, 0);+
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    layout->addWidget(mimeTypesLabel, 0, 1);+
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    layout->addWidget(mimeListWidget, 1, 1);+
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    layout->addWidget(effectsLabel, 2, 0);+
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    layout->addWidget(effectsTreeWidget, 3, 0, 2, 2);+
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    layout->setRowStretch(3, 100);+
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+
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    backendBox = new QGroupBox(tr("Backend Capabilities"));+
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    backendBox->setLayout(layout);+
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}+
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+
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