settingsdialog.cpp Example File

multimedia/spectrum/app/settingsdialog.cpp
/**************************************************************************** ** ** 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 "settingsdialog.h" #include <QCheckBox> #include <QComboBox> #include <QDialogButtonBox> #include <QLabel> #include <QPushButton> #include <QSlider> #include <QSpinBox> #include <QVBoxLayout> SettingsDialog::SettingsDialog( const QList<QAudioDeviceInfo> &availableInputDevices, const QList<QAudioDeviceInfo> &availableOutputDevices, QWidget *parent) : QDialog(parent) , m_windowFunction(DefaultWindowFunction) , m_inputDeviceComboBox(new QComboBox(this)) , m_outputDeviceComboBox(new QComboBox(this)) , m_windowFunctionComboBox(new QComboBox(this)) { QVBoxLayout *dialogLayout = new QVBoxLayout(this); // Populate combo boxes QAudioDeviceInfo device; foreach (device, availableInputDevices) m_inputDeviceComboBox->addItem(device.deviceName(), QVariant::fromValue(device)); foreach (device, availableOutputDevices) m_outputDeviceComboBox->addItem(device.deviceName(), QVariant::fromValue(device)); m_windowFunctionComboBox->addItem(tr("None"), QVariant::fromValue(int(NoWindow))); m_windowFunctionComboBox->addItem("Hann", QVariant::fromValue(int(HannWindow))); m_windowFunctionComboBox->setCurrentIndex(m_windowFunction); // Initialize default devices if (!availableInputDevices.empty()) m_inputDevice = availableInputDevices.front(); if (!availableOutputDevices.empty()) m_outputDevice = availableOutputDevices.front(); // Add widgets to layout QScopedPointer<QHBoxLayout> inputDeviceLayout(new QHBoxLayout); QLabel *inputDeviceLabel = new QLabel(tr("Input device"), this); inputDeviceLayout->addWidget(inputDeviceLabel); inputDeviceLayout->addWidget(m_inputDeviceComboBox); dialogLayout->addLayout(inputDeviceLayout.data()); inputDeviceLayout.take(); // ownership transferred to dialogLayout QScopedPointer<QHBoxLayout> outputDeviceLayout(new QHBoxLayout); QLabel *outputDeviceLabel = new QLabel(tr("Output device"), this); outputDeviceLayout->addWidget(outputDeviceLabel); outputDeviceLayout->addWidget(m_outputDeviceComboBox); dialogLayout->addLayout(outputDeviceLayout.data()); outputDeviceLayout.take(); // ownership transferred to dialogLayout QScopedPointer<QHBoxLayout> windowFunctionLayout(new QHBoxLayout); QLabel *windowFunctionLabel = new QLabel(tr("Window function"), this); windowFunctionLayout->addWidget(windowFunctionLabel); windowFunctionLayout->addWidget(m_windowFunctionComboBox); dialogLayout->addLayout(windowFunctionLayout.data()); windowFunctionLayout.take(); // ownership transferred to dialogLayout // Connect connect(m_inputDeviceComboBox, QOverload<int>::of(&QComboBox::activated), this, &SettingsDialog::inputDeviceChanged); connect(m_outputDeviceComboBox, QOverload<int>::of(&QComboBox::activated), this, &SettingsDialog::outputDeviceChanged); connect(m_windowFunctionComboBox, QOverload<int>::of(&QComboBox::activated), this, &SettingsDialog::windowFunctionChanged); // Add standard buttons to layout QDialogButtonBox *buttonBox = new QDialogButtonBox(this); buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel); dialogLayout->addWidget(buttonBox); // Connect standard buttons connect(buttonBox->button(QDialogButtonBox::Ok), &QPushButton::clicked, this, &SettingsDialog::accept); connect(buttonBox->button(QDialogButtonBox::Cancel), &QPushButton::clicked, this, &SettingsDialog::reject); setLayout(dialogLayout); } SettingsDialog::~SettingsDialog() { } void SettingsDialog::windowFunctionChanged(int index) { m_windowFunction = static_cast<WindowFunction>( m_windowFunctionComboBox->itemData(index).value<int>()); } void SettingsDialog::inputDeviceChanged(int index) { m_inputDevice = m_inputDeviceComboBox->itemData(index).value<QAudioDeviceInfo>(); } void SettingsDialog::outputDeviceChanged(int index) { m_outputDevice = m_outputDeviceComboBox->itemData(index).value<QAudioDeviceInfo>(); }