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220 lines
7.5 KiB
220 lines
7.5 KiB
/****************************************************************************
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**
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** Copyright (C) 2017 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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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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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "wowplayercontrols.h"
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#include <QBoxLayout>
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#include <QSlider>
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#include <QStyle>
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#include <QToolButton>
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#include <QComboBox>
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#include <QAudio>
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PlayerControls::PlayerControls(QWidget *parent)
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: QWidget(parent)
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{
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m_playButton = new QToolButton(this);
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m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
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connect(m_playButton, &QAbstractButton::clicked, this, &PlayerControls::playClicked);
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m_stopButton = new QToolButton(this);
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m_stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop));
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m_stopButton->setEnabled(false);
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connect(m_stopButton, &QAbstractButton::clicked, this, &PlayerControls::stop);
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m_nextButton = new QToolButton(this);
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m_nextButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward));
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connect(m_nextButton, &QAbstractButton::clicked, this, &PlayerControls::next);
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m_previousButton = new QToolButton(this);
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m_previousButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward));
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connect(m_previousButton, &QAbstractButton::clicked, this, &PlayerControls::previous);
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m_muteButton = new QToolButton(this);
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m_muteButton->setIcon(style()->standardIcon(QStyle::SP_MediaVolume));
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connect(m_muteButton, &QAbstractButton::clicked, this, &PlayerControls::muteClicked);
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m_volumeSlider = new QSlider(Qt::Horizontal, this);
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m_volumeSlider->setRange(0, 100);
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connect(m_volumeSlider, &QSlider::valueChanged, this, &PlayerControls::onVolumeSliderValueChanged);
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m_rateBox = new QComboBox(this);
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m_rateBox->addItem("0.5x", QVariant(0.5));
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m_rateBox->addItem("1.0x", QVariant(1.0));
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m_rateBox->addItem("2.0x", QVariant(2.0));
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m_rateBox->setCurrentIndex(1);
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connect(m_rateBox, QOverload<int>::of(&QComboBox::activated), this, &PlayerControls::updateRate);
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QBoxLayout *layout = new QHBoxLayout;
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layout->setContentsMargins(0, 0, 0, 0);
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layout->addWidget(m_stopButton);
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layout->addWidget(m_previousButton);
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layout->addWidget(m_playButton);
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layout->addWidget(m_nextButton);
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layout->addWidget(m_muteButton);
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layout->addWidget(m_volumeSlider);
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layout->addWidget(m_rateBox);
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setLayout(layout);
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}
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QMediaPlayer::State PlayerControls::state() const
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{
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return m_playerState;
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}
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void PlayerControls::setState(QMediaPlayer::State state)
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{
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if (state != m_playerState) {
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m_playerState = state;
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switch (state) {
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case QMediaPlayer::StoppedState:
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m_stopButton->setEnabled(false);
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m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
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break;
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case QMediaPlayer::PlayingState:
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m_stopButton->setEnabled(true);
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m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause));
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break;
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case QMediaPlayer::PausedState:
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m_stopButton->setEnabled(true);
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m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay));
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break;
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}
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}
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}
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int PlayerControls::volume() const
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{
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qreal linearVolume = QAudio::convertVolume(m_volumeSlider->value() / qreal(100),
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QAudio::LogarithmicVolumeScale,
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QAudio::LinearVolumeScale);
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return qRound(linearVolume * 100);
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}
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void PlayerControls::setVolume(int volume)
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{
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qreal logarithmicVolume = QAudio::convertVolume(volume / qreal(100),
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QAudio::LinearVolumeScale,
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QAudio::LogarithmicVolumeScale);
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m_volumeSlider->setValue(qRound(logarithmicVolume * 100));
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}
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bool PlayerControls::isMuted() const
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{
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return m_playerMuted;
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}
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void PlayerControls::setMuted(bool muted)
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{
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if (muted != m_playerMuted) {
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m_playerMuted = muted;
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m_muteButton->setIcon(style()->standardIcon(muted
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? QStyle::SP_MediaVolumeMuted
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: QStyle::SP_MediaVolume));
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}
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}
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void PlayerControls::playClicked()
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{
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switch (m_playerState) {
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case QMediaPlayer::StoppedState:
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case QMediaPlayer::PausedState:
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emit play();
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break;
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case QMediaPlayer::PlayingState:
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emit pause();
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break;
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}
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}
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void PlayerControls::muteClicked()
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{
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emit changeMuting(!m_playerMuted);
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}
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qreal PlayerControls::playbackRate() const
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{
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return m_rateBox->itemData(m_rateBox->currentIndex()).toDouble();
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}
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void PlayerControls::setPlaybackRate(float rate)
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{
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for (int i = 0; i < m_rateBox->count(); ++i) {
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if (qFuzzyCompare(rate, float(m_rateBox->itemData(i).toDouble()))) {
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m_rateBox->setCurrentIndex(i);
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return;
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}
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}
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m_rateBox->addItem(QString("%1x").arg(rate), QVariant(rate));
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m_rateBox->setCurrentIndex(m_rateBox->count() - 1);
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}
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void PlayerControls::updateRate()
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{
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emit changeRate(playbackRate());
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}
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void PlayerControls::onVolumeSliderValueChanged()
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{
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emit changeVolume(volume());
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}
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