1 files changed, 158 insertions, 0 deletions
diff --git a/examples/multimedia/radio/radio.cpp b/examples/multimedia/radio/radio.cpp
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+++ b/examples/multimedia/radio/radio.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
+**     of its contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "radio.h"
+
+Radio::Radio()
+{
+    radio = new QRadioTuner;
+    connect(radio, SIGNAL(error(QRadioTuner::Error)), this, SLOT(error(QRadioTuner::Error)));
+
+    if (radio->isBandSupported(QRadioTuner::FM))
+        radio->setBand(QRadioTuner::FM);
+
+    QWidget *window = new QWidget;
+    QVBoxLayout *layout = new QVBoxLayout;
+    QHBoxLayout *buttonBar = new QHBoxLayout;
+    QHBoxLayout *topBar = new QHBoxLayout;
+
+    layout->addLayout(topBar);
+
+    freq = new QLabel;
+    freq->setText(QString("%1 kHz").arg(radio->frequency()/1000));
+    topBar->addWidget(freq);
+    connect(radio, SIGNAL(frequencyChanged(int)), SLOT(freqChanged(int)));
+
+    signal = new QLabel;
+    if (radio->isAvailable())
+        signal->setText(tr("No Signal"));
+    else
+        signal->setText(tr("No radio found"));
+    topBar->addWidget(signal);
+    connect(radio, SIGNAL(signalStrengthChanged(int)), SLOT(signalChanged(int)));
+
+    volumeSlider = new QSlider(Qt::Vertical,this);
+    volumeSlider->setRange(0, 100);
+    volumeSlider->setValue(50);
+    connect(volumeSlider, SIGNAL(valueChanged(int)), SLOT(updateVolume(int)));
+    topBar->addWidget(volumeSlider);
+
+    layout->addLayout(buttonBar);
+
+    searchLeft = new QPushButton;
+    searchLeft->setText(tr("scan Down"));
+    connect(searchLeft, SIGNAL(clicked()), SLOT(searchDown()));
+    buttonBar->addWidget(searchLeft);
+
+    left = new QPushButton;
+    left->setText(tr("Freq Down"));
+    connect(left, SIGNAL(clicked()), SLOT(freqDown()));
+    buttonBar->addWidget(left);
+
+    right = new QPushButton;
+    connect(right, SIGNAL(clicked()), SLOT(freqUp()));
+    right->setText(tr("Freq Up"));
+    buttonBar->addWidget(right);
+
+    searchRight = new QPushButton;
+    searchRight->setText(tr("scan Up"));
+    connect(searchRight, SIGNAL(clicked()), SLOT(searchUp()));
+    buttonBar->addWidget(searchRight);
+
+    window->setLayout(layout);
+    setCentralWidget(window);
+    window->show();
+
+    radio->start();
+}
+
+Radio::~Radio()
+{
+}
+
+void Radio::freqUp()
+{
+    int f = radio->frequency();
+    f += radio->frequencyStep(QRadioTuner::FM);
+    radio->setFrequency(f);
+}
+
+void Radio::freqDown()
+{
+    int f = radio->frequency();
+    f -= radio->frequencyStep(QRadioTuner::FM);
+    radio->setFrequency(f);
+}
+
+void Radio::searchUp()
+{
+    radio->searchForward();
+}
+
+void Radio::searchDown()
+{
+    radio->searchBackward();
+}
+
+void Radio::freqChanged(int)
+{
+    freq->setText(QString("%1 kHz").arg(radio->frequency()/1000));
+}
+
+void Radio::signalChanged(int)
+{
+    if(radio->signalStrength() > 25)
+        signal->setText(tr("Got Signal"));
+    else
+        signal->setText(tr("No Signal"));
+}
+
+void Radio::updateVolume(int v)
+{
+    radio->setVolume(v);
+}
+
+void Radio::error(QRadioTuner::Error error)
+{
+    const QMetaObject *metaObj = radio->metaObject();
+    QMetaEnum errorEnum = metaObj->enumerator(metaObj->indexOfEnumerator("Error"));
+    qWarning().nospace() << "Warning: Example application received error QRadioTuner::" << errorEnum.valueToKey(error);
+}
+