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Diffstat (limited to 'examples/multimediawidgets/player/playercontrols.cpp')
| -rw-r--r-- | examples/multimediawidgets/player/playercontrols.cpp | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/examples/multimediawidgets/player/playercontrols.cpp b/examples/multimediawidgets/player/playercontrols.cpp deleted file mode 100644 index 3c06c01c6..000000000 --- a/examples/multimediawidgets/player/playercontrols.cpp +++ /dev/null @@ -1,219 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, 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 The Qt Company Ltd 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 <QBoxLayout> -#include <QSlider> -#include <QStyle> -#include <QToolButton> -#include <QComboBox> -#include <QAudio> - -PlayerControls::PlayerControls(QWidget *parent) - : QWidget(parent) -{ - m_playButton = new QToolButton(this); - m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); - - connect(m_playButton, &QAbstractButton::clicked, this, &PlayerControls::playClicked); - - m_stopButton = new QToolButton(this); - m_stopButton->setIcon(style()->standardIcon(QStyle::SP_MediaStop)); - m_stopButton->setEnabled(false); - - connect(m_stopButton, &QAbstractButton::clicked, this, &PlayerControls::stop); - - m_nextButton = new QToolButton(this); - m_nextButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipForward)); - - connect(m_nextButton, &QAbstractButton::clicked, this, &PlayerControls::next); - - m_previousButton = new QToolButton(this); - m_previousButton->setIcon(style()->standardIcon(QStyle::SP_MediaSkipBackward)); - - connect(m_previousButton, &QAbstractButton::clicked, this, &PlayerControls::previous); - - m_muteButton = new QToolButton(this); - m_muteButton->setIcon(style()->standardIcon(QStyle::SP_MediaVolume)); - - connect(m_muteButton, &QAbstractButton::clicked, this, &PlayerControls::muteClicked); - - m_volumeSlider = new QSlider(Qt::Horizontal, this); - m_volumeSlider->setRange(0, 100); - - connect(m_volumeSlider, &QSlider::valueChanged, this, &PlayerControls::onVolumeSliderValueChanged); - - m_rateBox = new QComboBox(this); - m_rateBox->addItem("0.5x", QVariant(0.5)); - m_rateBox->addItem("1.0x", QVariant(1.0)); - m_rateBox->addItem("2.0x", QVariant(2.0)); - m_rateBox->setCurrentIndex(1); - - connect(m_rateBox, QOverload<int>::of(&QComboBox::activated), this, &PlayerControls::updateRate); - - QBoxLayout *layout = new QHBoxLayout; - layout->setContentsMargins(0, 0, 0, 0); - layout->addWidget(m_stopButton); - layout->addWidget(m_previousButton); - layout->addWidget(m_playButton); - layout->addWidget(m_nextButton); - layout->addWidget(m_muteButton); - layout->addWidget(m_volumeSlider); - layout->addWidget(m_rateBox); - setLayout(layout); -} - -QMediaPlayer::State PlayerControls::state() const -{ - return m_playerState; -} - -void PlayerControls::setState(QMediaPlayer::State state) -{ - if (state != m_playerState) { - m_playerState = state; - - switch (state) { - case QMediaPlayer::StoppedState: - m_stopButton->setEnabled(false); - m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); - break; - case QMediaPlayer::PlayingState: - m_stopButton->setEnabled(true); - m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPause)); - break; - case QMediaPlayer::PausedState: - m_stopButton->setEnabled(true); - m_playButton->setIcon(style()->standardIcon(QStyle::SP_MediaPlay)); - break; - } - } -} - -int PlayerControls::volume() const -{ - qreal linearVolume = QAudio::convertVolume(m_volumeSlider->value() / qreal(100), - QAudio::LogarithmicVolumeScale, - QAudio::LinearVolumeScale); - - return qRound(linearVolume * 100); -} - -void PlayerControls::setVolume(int volume) -{ - qreal logarithmicVolume = QAudio::convertVolume(volume / qreal(100), - QAudio::LinearVolumeScale, - QAudio::LogarithmicVolumeScale); - - m_volumeSlider->setValue(qRound(logarithmicVolume * 100)); -} - -bool PlayerControls::isMuted() const -{ - return m_playerMuted; -} - -void PlayerControls::setMuted(bool muted) -{ - if (muted != m_playerMuted) { - m_playerMuted = muted; - - m_muteButton->setIcon(style()->standardIcon(muted - ? QStyle::SP_MediaVolumeMuted - : QStyle::SP_MediaVolume)); - } -} - -void PlayerControls::playClicked() -{ - switch (m_playerState) { - case QMediaPlayer::StoppedState: - case QMediaPlayer::PausedState: - emit play(); - break; - case QMediaPlayer::PlayingState: - emit pause(); - break; - } -} - -void PlayerControls::muteClicked() -{ - emit changeMuting(!m_playerMuted); -} - -qreal PlayerControls::playbackRate() const -{ - return m_rateBox->itemData(m_rateBox->currentIndex()).toDouble(); -} - -void PlayerControls::setPlaybackRate(float rate) -{ - for (int i = 0; i < m_rateBox->count(); ++i) { - if (qFuzzyCompare(rate, float(m_rateBox->itemData(i).toDouble()))) { - m_rateBox->setCurrentIndex(i); - return; - } - } - - m_rateBox->addItem(QString("%1x").arg(rate), QVariant(rate)); - m_rateBox->setCurrentIndex(m_rateBox->count() - 1); -} - -void PlayerControls::updateRate() -{ - emit changeRate(playbackRate()); -} - -void PlayerControls::onVolumeSliderValueChanged() -{ - emit changeVolume(volume()); -} |