diff options
Diffstat (limited to 'examples/multimedia/spectrum/mainwidget.cpp')
| -rw-r--r-- | examples/multimedia/spectrum/mainwidget.cpp | 213 |
1 files changed, 75 insertions, 138 deletions
diff --git a/examples/multimedia/spectrum/mainwidget.cpp b/examples/multimedia/spectrum/mainwidget.cpp index b72b01bac..214d317d9 100644 --- a/examples/multimedia/spectrum/mainwidget.cpp +++ b/examples/multimedia/spectrum/mainwidget.cpp @@ -1,102 +1,55 @@ -/**************************************************************************** -** -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2017 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause +#include "mainwidget.h" #include "engine.h" #include "levelmeter.h" -#include "mainwidget.h" -#include "waveform.h" #include "progressbar.h" #include "settingsdialog.h" #include "spectrograph.h" #include "tonegeneratordialog.h" #include "utils.h" +#include "waveform.h" +#include <QFileDialog> +#include <QHBoxLayout> #include <QLabel> +#include <QMenu> +#include <QMessageBox> #include <QPushButton> -#include <QHBoxLayout> -#include <QVBoxLayout> #include <QStyle> -#include <QMenu> -#include <QFileDialog> #include <QTimerEvent> -#include <QMessageBox> +#include <QVBoxLayout> const int NullTimerId = -1; MainWidget::MainWidget(QWidget *parent) - : QWidget(parent) - , m_mode(NoMode) - , m_engine(new Engine(this)) + : QWidget(parent), + m_mode(NoMode), + m_engine(new Engine(this)) #ifndef DISABLE_WAVEFORM - , m_waveform(new Waveform(this)) + , + m_waveform(new Waveform(this)) #endif - , m_progressBar(new ProgressBar(this)) - , m_spectrograph(new Spectrograph(this)) - , m_levelMeter(new LevelMeter(this)) - , m_modeButton(new QPushButton(this)) - , m_recordButton(new QPushButton(this)) - , m_pauseButton(new QPushButton(this)) - , m_playButton(new QPushButton(this)) - , m_settingsButton(new QPushButton(this)) - , m_infoMessage(new QLabel(tr("Select a mode to begin"), this)) - , m_infoMessageTimerId(NullTimerId) - , m_settingsDialog(new SettingsDialog( - m_engine->availableAudioInputDevices(), - m_engine->availableAudioOutputDevices(), - this)) - , m_toneGeneratorDialog(new ToneGeneratorDialog(this)) - , m_modeMenu(new QMenu(this)) - , m_loadFileAction(nullptr) - , m_generateToneAction(nullptr) - , m_recordAction(nullptr) - , m_errorOccurred(false) + , + m_progressBar(new ProgressBar(this)), + m_spectrograph(new Spectrograph(this)), + m_levelMeter(new LevelMeter(this)), + m_modeButton(new QPushButton(this)), + m_recordButton(new QPushButton(this)), + m_pauseButton(new QPushButton(this)), + m_playButton(new QPushButton(this)), + m_settingsButton(new QPushButton(this)), + m_infoMessage(new QLabel(tr("Select a mode to begin"), this)), + m_infoMessageTimerId(NullTimerId), + m_settingsDialog(new SettingsDialog(m_engine->availableAudioInputDevices(), + m_engine->availableAudioOutputDevices(), this)), + m_toneGeneratorDialog(new ToneGeneratorDialog(this)), + m_modeMenu(new QMenu(this)), + m_loadFileAction(nullptr), + m_generateToneAction(nullptr), + m_recordAction(nullptr), + m_errorOccurred(false) { m_spectrograph->setParams(SpectrumNumBands, SpectrumLowFreq, SpectrumHighFreq); @@ -106,7 +59,6 @@ MainWidget::MainWidget(QWidget *parent) MainWidget::~MainWidget() = default; - //----------------------------------------------------------------------------- // Public slots //----------------------------------------------------------------------------- @@ -117,8 +69,7 @@ void MainWidget::stateChanged(QAudioDevice::Mode mode, QAudio::State state) updateButtonStates(); - if (QAudio::ActiveState != state && - QAudio::SuspendedState != state) { + if (QAudio::ActiveState != state && QAudio::SuspendedState != state) { m_levelMeter->reset(); m_spectrograph->reset(); } @@ -126,18 +77,16 @@ void MainWidget::stateChanged(QAudioDevice::Mode mode, QAudio::State state) void MainWidget::formatChanged(const QAudioFormat &format) { - infoMessage(formatToString(format), NullMessageTimeout); + infoMessage(formatToString(format), NullMessageTimeout); #ifndef DISABLE_WAVEFORM if (QAudioFormat() != format) { - m_waveform->initialize(format, WaveformTileLength, - WaveformWindowDuration); + m_waveform->initialize(format, WaveformTileLength, WaveformWindowDuration); } #endif } -void MainWidget::spectrumChanged(qint64 position, qint64 length, - const FrequencySpectrum &spectrum) +void MainWidget::spectrumChanged(qint64 position, qint64 length, const FrequencySpectrum &spectrum) { m_progressBar->windowChanged(position, length); m_spectrograph->spectrumChanged(spectrum); @@ -186,7 +135,6 @@ void MainWidget::bufferLengthChanged(qint64 length) m_progressBar->bufferLengthChanged(length); } - //----------------------------------------------------------------------------- // Private slots //----------------------------------------------------------------------------- @@ -195,7 +143,8 @@ void MainWidget::showFileDialog() { m_errorOccurred = false; const QString dir; - const QStringList fileNames = QFileDialog::getOpenFileNames(this, tr("Open WAV file"), dir, "*.wav"); + const QStringList fileNames = + QFileDialog::getOpenFileNames(this, tr("Open WAV file"), dir, "*.wav"); if (fileNames.count()) { reset(); setMode(LoadFileMode); @@ -247,7 +196,6 @@ void MainWidget::initializeRecord() updateButtonStates(); } - //----------------------------------------------------------------------------- // Private functions //----------------------------------------------------------------------------- @@ -272,9 +220,9 @@ void MainWidget::createUi() m_waveform->setLayout(waveformLayout.release()); windowLayout->addWidget(m_waveform); #else -#ifndef DISABLE_WAVEFORM +# ifndef DISABLE_WAVEFORM windowLayout->addWidget(m_waveform); -#endif // DISABLE_WAVEFORM +# endif // DISABLE_WAVEFORM windowLayout->addWidget(m_progressBar); #endif // SUPERIMPOSE_PROGRESS_ON_WAVEFORM @@ -338,62 +286,49 @@ void MainWidget::createUi() void MainWidget::connectUi() { - connect(m_recordButton, &QPushButton::clicked, - m_engine, &Engine::startRecording); + connect(m_recordButton, &QPushButton::clicked, m_engine, &Engine::startRecording); - connect(m_pauseButton, &QPushButton::clicked, - m_engine, &Engine::suspend); + connect(m_pauseButton, &QPushButton::clicked, m_engine, &Engine::suspend); - connect(m_playButton, &QPushButton::clicked, - m_engine, &Engine::startPlayback); + connect(m_playButton, &QPushButton::clicked, m_engine, &Engine::startPlayback); - connect(m_settingsButton, &QPushButton::clicked, - this, &MainWidget::showSettingsDialog); + connect(m_settingsButton, &QPushButton::clicked, this, &MainWidget::showSettingsDialog); - connect(m_engine, &Engine::stateChanged, - this, &MainWidget::stateChanged); + connect(m_engine, &Engine::stateChanged, this, &MainWidget::stateChanged); - connect(m_engine, &Engine::formatChanged, - this, &MainWidget::formatChanged); + connect(m_engine, &Engine::formatChanged, this, &MainWidget::formatChanged); m_progressBar->bufferLengthChanged(m_engine->bufferLength()); - connect(m_engine, &Engine::bufferLengthChanged, - this, &MainWidget::bufferLengthChanged); + connect(m_engine, &Engine::bufferLengthChanged, this, &MainWidget::bufferLengthChanged); - connect(m_engine, &Engine::dataLengthChanged, - this, &MainWidget::updateButtonStates); + connect(m_engine, &Engine::dataLengthChanged, this, &MainWidget::updateButtonStates); - connect(m_engine, &Engine::recordPositionChanged, - m_progressBar, &ProgressBar::recordPositionChanged); + connect(m_engine, &Engine::recordPositionChanged, m_progressBar, + &ProgressBar::recordPositionChanged); - connect(m_engine, &Engine::playPositionChanged, - m_progressBar, &ProgressBar::playPositionChanged); + connect(m_engine, &Engine::playPositionChanged, m_progressBar, + &ProgressBar::playPositionChanged); - connect(m_engine, &Engine::recordPositionChanged, - this, &MainWidget::audioPositionChanged); + connect(m_engine, &Engine::recordPositionChanged, this, &MainWidget::audioPositionChanged); - connect(m_engine, &Engine::playPositionChanged, - this, &MainWidget::audioPositionChanged); + connect(m_engine, &Engine::playPositionChanged, this, &MainWidget::audioPositionChanged); - connect(m_engine, &Engine::levelChanged, - m_levelMeter, &LevelMeter::levelChanged); + connect(m_engine, &Engine::levelChanged, m_levelMeter, &LevelMeter::levelChanged); - connect(m_engine, QOverload<qint64, qint64, const FrequencySpectrum&>::of(&Engine::spectrumChanged), - this, QOverload<qint64, qint64, const FrequencySpectrum&>::of(&MainWidget::spectrumChanged)); + connect(m_engine, + QOverload<qint64, qint64, const FrequencySpectrum &>::of(&Engine::spectrumChanged), + this, + QOverload<qint64, qint64, const FrequencySpectrum &>::of(&MainWidget::spectrumChanged)); - connect(m_engine, &Engine::infoMessage, - this, &MainWidget::infoMessage); + connect(m_engine, &Engine::infoMessage, this, &MainWidget::infoMessage); - connect(m_engine, &Engine::errorMessage, - this, &MainWidget::errorMessage); + connect(m_engine, &Engine::errorMessage, this, &MainWidget::errorMessage); - connect(m_spectrograph, &Spectrograph::infoMessage, - this, &MainWidget::infoMessage); + connect(m_spectrograph, &Spectrograph::infoMessage, this, &MainWidget::infoMessage); #ifndef DISABLE_WAVEFORM - connect(m_engine, &Engine::bufferChanged, - m_waveform, &Waveform::bufferChanged); + connect(m_engine, &Engine::bufferChanged, m_waveform, &Waveform::bufferChanged); #endif } @@ -416,20 +351,20 @@ void MainWidget::createMenus() void MainWidget::updateButtonStates() { - const bool recordEnabled = ((QAudioDevice::Output == m_engine->mode() || - (QAudio::ActiveState != m_engine->state() && - QAudio::IdleState != m_engine->state())) && - RecordMode == m_mode); + const bool recordEnabled = ((QAudioDevice::Output == m_engine->mode() + || (QAudio::ActiveState != m_engine->state() + && QAudio::IdleState != m_engine->state())) + && RecordMode == m_mode); m_recordButton->setEnabled(m_errorOccurred ? false : recordEnabled); - const bool pauseEnabled = (QAudio::ActiveState == m_engine->state() || - QAudio::IdleState == m_engine->state()); + const bool pauseEnabled = + (QAudio::ActiveState == m_engine->state() || QAudio::IdleState == m_engine->state()); m_pauseButton->setEnabled(m_errorOccurred ? false : pauseEnabled); const bool playEnabled = (/*m_engine->dataLength() &&*/ - (QAudioDevice::Output != m_engine->mode() || - (QAudio::ActiveState != m_engine->state() && - QAudio::IdleState != m_engine->state()))); + (QAudioDevice::Output != m_engine->mode() + || (QAudio::ActiveState != m_engine->state() + && QAudio::IdleState != m_engine->state()))); m_playButton->setEnabled(m_errorOccurred ? false : playEnabled); } @@ -461,3 +396,5 @@ void MainWidget::updateModeMenu() m_generateToneAction->setChecked(GenerateToneMode == m_mode); m_recordAction->setChecked(RecordMode == m_mode); } + +#include "moc_mainwidget.cpp" |