connectdialog.cpp Example File

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#include "connectdialog.h" #include "ui_connectdialog.h" #include <QCanBus> ConnectDialog::ConnectDialog(QWidget *parent) : QDialog(parent), m_ui(new Ui::ConnectDialog) { m_ui->setupUi(this); m_ui->errorFilterEdit->setValidator(new QIntValidator(0, 0x1FFFFFFFU, this)); m_ui->loopbackBox->addItem(tr("unspecified"), QVariant()); m_ui->loopbackBox->addItem(tr("false"), QVariant(false)); m_ui->loopbackBox->addItem(tr("true"), QVariant(true)); m_ui->receiveOwnBox->addItem(tr("unspecified"), QVariant()); m_ui->receiveOwnBox->addItem(tr("false"), QVariant(false)); m_ui->receiveOwnBox->addItem(tr("true"), QVariant(true)); m_ui->canFdBox->addItem(tr("false"), QVariant(false)); m_ui->canFdBox->addItem(tr("true"), QVariant(true)); m_ui->dataBitrateBox->setFlexibleDateRateEnabled(true); connect(m_ui->okButton, &QPushButton::clicked, this, &ConnectDialog::ok); connect(m_ui->cancelButton, &QPushButton::clicked, this, &ConnectDialog::cancel); connect(m_ui->useConfigurationBox, &QCheckBox::clicked, m_ui->configurationBox, &QGroupBox::setEnabled); connect(m_ui->backendListBox, &QComboBox::currentTextChanged, this, &ConnectDialog::backendChanged); connect(m_ui->interfaceListBox, &QComboBox::currentTextChanged, this, &ConnectDialog::interfaceChanged); m_ui->rawFilterEdit->hide(); m_ui->rawFilterLabel->hide(); m_ui->backendListBox->addItems(QCanBus::instance()->plugins()); updateSettings(); } ConnectDialog::~ConnectDialog() { delete m_ui; } ConnectDialog::Settings ConnectDialog::settings() const { return m_currentSettings; } void ConnectDialog::backendChanged(const QString &backend) { m_ui->interfaceListBox->clear(); m_interfaces = QCanBus::instance()->availableDevices(backend); for (const QCanBusDeviceInfo &info : qAsConst(m_interfaces)) m_ui->interfaceListBox->addItem(; } void ConnectDialog::interfaceChanged(const QString &interface) { m_ui->isVirtual->setChecked(false); m_ui->isFlexibleDataRateCapable->setChecked(false); for (const QCanBusDeviceInfo &info : qAsConst(m_interfaces)) { if ( == interface) { m_ui->isVirtual->setChecked(info.isVirtual()); m_ui->isFlexibleDataRateCapable->setChecked(info.hasFlexibleDataRate()); break; } } } void ConnectDialog::ok() { updateSettings(); accept(); } void ConnectDialog::cancel() { revertSettings(); reject(); } QString ConnectDialog::configurationValue(QCanBusDevice::ConfigurationKey key) { QVariant result; for (const ConfigurationItem &item : qAsConst(m_currentSettings.configurations)) { if (item.first == key) { result = item.second; break; } } if (result.isNull() && ( key == QCanBusDevice::LoopbackKey || key == QCanBusDevice::ReceiveOwnKey)) { return tr("unspecified"); } return result.toString(); } void ConnectDialog::revertSettings() { m_ui->backendListBox->setCurrentText(m_currentSettings.backendName); m_ui->interfaceListBox->setCurrentText(m_currentSettings.deviceInterfaceName); m_ui->useConfigurationBox->setChecked(m_currentSettings.useConfigurationEnabled); QString value = configurationValue(QCanBusDevice::LoopbackKey); m_ui->loopbackBox->setCurrentText(value); value = configurationValue(QCanBusDevice::ReceiveOwnKey); m_ui->receiveOwnBox->setCurrentText(value); value = configurationValue(QCanBusDevice::ErrorFilterKey); m_ui->errorFilterEdit->setText(value); value = configurationValue(QCanBusDevice::BitRateKey); m_ui->bitrateBox->setCurrentText(value); value = configurationValue(QCanBusDevice::CanFdKey); m_ui->canFdBox->setCurrentText(value); value = configurationValue(QCanBusDevice::DataBitRateKey); m_ui->dataBitrateBox->setCurrentText(value); } void ConnectDialog::updateSettings() { m_currentSettings.backendName = m_ui->backendListBox->currentText(); m_currentSettings.deviceInterfaceName = m_ui->interfaceListBox->currentText(); m_currentSettings.useConfigurationEnabled = m_ui->useConfigurationBox->isChecked(); if (m_currentSettings.useConfigurationEnabled) { m_currentSettings.configurations.clear(); // process LoopBack if (m_ui->loopbackBox->currentIndex() != 0) { ConfigurationItem item; item.first = QCanBusDevice::LoopbackKey; item.second = m_ui->loopbackBox->currentData(); m_currentSettings.configurations.append(item); } // process ReceiveOwnKey if (m_ui->receiveOwnBox->currentIndex() != 0) { ConfigurationItem item; item.first = QCanBusDevice::ReceiveOwnKey; item.second = m_ui->receiveOwnBox->currentData(); m_currentSettings.configurations.append(item); } // process error filter if (!m_ui->errorFilterEdit->text().isEmpty()) { QString value = m_ui->errorFilterEdit->text(); bool ok = false; int dec = value.toInt(&ok); if (ok) { ConfigurationItem item; item.first = QCanBusDevice::ErrorFilterKey; item.second = QVariant::fromValue(QCanBusFrame::FrameErrors(dec)); m_currentSettings.configurations.append(item); } } // process raw filter list if (!m_ui->rawFilterEdit->text().isEmpty()) { //TODO current ui not sfficient to reflect this param } // process bitrate const int bitrate = m_ui->bitrateBox->bitRate(); if (bitrate > 0) { const ConfigurationItem item(QCanBusDevice::BitRateKey, QVariant(bitrate)); m_currentSettings.configurations.append(item); } // process CAN FD setting ConfigurationItem fdItem; fdItem.first = QCanBusDevice::CanFdKey; fdItem.second = m_ui->canFdBox->currentData(); m_currentSettings.configurations.append(fdItem); // process data bitrate const int dataBitrate = m_ui->dataBitrateBox->bitRate(); if (dataBitrate > 0) { const ConfigurationItem item(QCanBusDevice::DataBitRateKey, QVariant(dataBitrate)); m_currentSettings.configurations.append(item); } } }

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