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Diffstat (limited to 'demos/player/playercontrols.cpp')
-rw-r--r-- | demos/player/playercontrols.cpp | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/demos/player/playercontrols.cpp b/demos/player/playercontrols.cpp new file mode 100644 index 000000000..bf4d96b2f --- /dev/null +++ b/demos/player/playercontrols.cpp @@ -0,0 +1,211 @@ +/**************************************************************************** +** +** 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 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 "playercontrols.h" + +#include <QtGui/qboxlayout.h> +#include <QtGui/qslider.h> +#include <QtGui/qstyle.h> +#include <QtGui/qtoolbutton.h> +#include <QtGui/qcombobox.h> + +PlayerControls::PlayerControls(QWidget *parent) + : QWidget(parent) + , playerState(QMediaPlayer::StoppedState) + , playerMuted(false) + , playButton(0) + , stopButton(0) + , nextButton(0) + , previousButton(0) + , muteButton(0) + , volumeSlider(0) + , rateBox(0) +{ + playButton = new QToolButton(this); + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); + + connect(playButton, SIGNAL(clicked()), this, SLOT(playClicked())); + + stopButton = new QToolButton(this); + stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop)); + stopButton->setEnabled(false); + + connect(stopButton, SIGNAL(clicked()), this, SIGNAL(stop())); + + nextButton = new QToolButton(this); + nextButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward)); + + connect(nextButton, SIGNAL(clicked()), this, SIGNAL(next())); + + previousButton = new QToolButton(this); + previousButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward)); + + connect(previousButton, SIGNAL(clicked()), this, SIGNAL(previous())); + + muteButton = new QToolButton(this); + muteButton->setIcon(style()->standardIcon(QStyle::SP_MediaVolume)); + + connect(muteButton, SIGNAL(clicked()), this, SLOT(muteClicked())); + +#ifndef Q_WS_MAEMO_5 + volumeSlider = new QSlider(Qt::Horizontal, this); + volumeSlider->setRange(0, 100); + + connect(volumeSlider, SIGNAL(sliderMoved(int)), this, SIGNAL(changeVolume(int))); + + + rateBox = new QComboBox(this); + rateBox->addItem("0.5x", QVariant(0.5)); + rateBox->addItem("1.0x", QVariant(1.0)); + rateBox->addItem("2.0x", QVariant(2.0)); + rateBox->setCurrentIndex(1); + + connect(rateBox, SIGNAL(activated(int)), SLOT(updateRate())); +#endif + + QBoxLayout *layout = new QHBoxLayout; + layout->setMargin(0); + layout->addWidget(stopButton); + layout->addWidget(previousButton); + layout->addWidget(playButton); + layout->addWidget(nextButton); + layout->addWidget(muteButton); + if (volumeSlider) + layout->addWidget(volumeSlider); + + if (rateBox) + layout->addWidget(rateBox); + setLayout(layout); +} + +QMediaPlayer::State PlayerControls::state() const +{ + return playerState; +} + +void PlayerControls::setState(QMediaPlayer::State state) +{ + if (state != playerState) { + playerState = state; + + switch (state) { + case QMediaPlayer::StoppedState: + stopButton->setEnabled(false); + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); + break; + case QMediaPlayer::PlayingState: + stopButton->setEnabled(true); + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause)); + break; + case QMediaPlayer::PausedState: + stopButton->setEnabled(true); + playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); + break; + } + } +} + +int PlayerControls::volume() const +{ + return volumeSlider ? volumeSlider->value() : 0; +} + +void PlayerControls::setVolume(int volume) +{ + if (volumeSlider) + volumeSlider->setValue(volume); +} + +bool PlayerControls::isMuted() const +{ + return playerMuted; +} + +void PlayerControls::setMuted(bool muted) +{ + if (muted != playerMuted) { + playerMuted = muted; + + muteButton->setIcon(style()->standardIcon(muted + ? QStyle::SP_MediaVolumeMuted + : QStyle::SP_MediaVolume)); + } +} + +void PlayerControls::playClicked() +{ + switch (playerState) { + case QMediaPlayer::StoppedState: + case QMediaPlayer::PausedState: + emit play(); + break; + case QMediaPlayer::PlayingState: + emit pause(); + break; + } +} + +void PlayerControls::muteClicked() +{ + emit changeMuting(!playerMuted); +} + +qreal PlayerControls::playbackRate() const +{ + return rateBox->itemData(rateBox->currentIndex()).toDouble(); +} + +void PlayerControls::setPlaybackRate(float rate) +{ + for (int i=0; i<rateBox->count(); i++) { + if (qFuzzyCompare(rate, float(rateBox->itemData(i).toDouble()))) { + rateBox->setCurrentIndex(i); + return; + } + } + + rateBox->addItem( QString("%1x").arg(rate), QVariant(rate)); + rateBox->setCurrentIndex(rateBox->count()-1); +} + +void PlayerControls::updateRate() +{ + emit changeRate(playbackRate()); +} |