diff options
Diffstat (limited to 'examples/radio/radio.cpp')
| -rw-r--r-- | examples/radio/radio.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/examples/radio/radio.cpp b/examples/radio/radio.cpp new file mode 100644 index 000000000..b37b0b551 --- /dev/null +++ b/examples/radio/radio.cpp @@ -0,0 +1,179 @@ +/**************************************************************************** +** +** 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 Mobility Components. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation 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" + +#include <QtGui> + +Radio::Radio() +{ + radio = new QRadioTuner; + connect(radio,SIGNAL(frequencyChanged(int)),this,SLOT(freqChanged(int))); + connect(radio,SIGNAL(signalStrengthChanged(int)),this,SLOT(signalChanged(int))); + 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; +#if defined Q_OS_SYMBIAN // this is so that we can see all buttons also in 3.1 devices, where the screens are smaller.. + QHBoxLayout* buttonBar2 = new QHBoxLayout; +#endif + QHBoxLayout* topBar = new QHBoxLayout; + + layout->addLayout(topBar); + + freq = new QLabel; + freq->setText(QString("%1 kHz").arg(radio->frequency()/1000)); + topBar->addWidget(freq); + + signal = new QLabel; + if (radio->isAvailable()) + signal->setText(tr("No Signal")); + else + signal->setText(tr("No radio found")); + topBar->addWidget(signal); +#if defined Q_WS_MAEMO_5 + QSpacerItem *spacer = new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum); + topBar->addItem(spacer); + volumeSlider = new QSlider(Qt::Horizontal,this); +#else + volumeSlider = new QSlider(Qt::Vertical,this); +#endif + volumeSlider->setRange(0,100); + volumeSlider->setValue(50); + connect(volumeSlider,SIGNAL(valueChanged(int)),this,SLOT(updateVolume(int))); + topBar->addWidget(volumeSlider); + + layout->addLayout(buttonBar); +#if defined Q_OS_SYMBIAN + layout->addLayout(buttonBar2); +#endif + + 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())); +#if defined Q_OS_SYMBIAN + buttonBar2->addWidget(left); +#else + buttonBar->addWidget(left); +#endif + + right = new QPushButton; + connect(right,SIGNAL(clicked()),SLOT(freqUp())); + right->setText(tr("Freq Up")); +#if defined Q_OS_SYMBIAN + buttonBar2->addWidget(right); +#else + buttonBar->addWidget(right); +#endif + + 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 = f + radio->frequencyStep(QRadioTuner::FM); + radio->setFrequency(f); +} + +void Radio::freqDown() +{ + int f = radio->frequency(); + f = 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); +} + |