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Diffstat (limited to 'examples/phonon/capabilities/window.cpp')
| -rw-r--r-- | examples/phonon/capabilities/window.cpp | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/examples/phonon/capabilities/window.cpp b/examples/phonon/capabilities/window.cpp new file mode 100644 index 0000000000..920e3e01ab --- /dev/null +++ b/examples/phonon/capabilities/window.cpp @@ -0,0 +1,166 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** 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 +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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); +} + |