Source code
Revision control
Copy as Markdown
// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "connectdialog.h"
#include "ui_connectdialog.h"
#include <QCanBus>
#include <QSettings>
ConnectDialog::ConnectDialog(QWidget *parent) :
QDialog(parent),
m_ui(new Ui::ConnectDialog),
m_settings(new QSettings("QtProject", "CAN example"))
{
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::toggled,
m_ui->configurationBox, &QGroupBox::setEnabled);
connect(m_ui->pluginListBox, &QComboBox::currentTextChanged,
this, &ConnectDialog::pluginChanged);
connect(m_ui->interfaceListBox, &QComboBox::currentTextChanged,
this, &ConnectDialog::interfaceChanged);
connect(m_ui->ringBufferBox, &QCheckBox::checkStateChanged, this, [this](Qt::CheckState state){
m_ui->ringBufferLimitBox->setEnabled(state == Qt::CheckState::Checked);
});
m_ui->rawFilterEdit->hide();
m_ui->rawFilterLabel->hide();
m_ui->pluginListBox->addItems(QCanBus::instance()->plugins());
restoreSettings();
}
ConnectDialog::~ConnectDialog()
{
delete m_settings;
delete m_ui;
}
ConnectDialog::Settings ConnectDialog::settings() const
{
return m_currentSettings;
}
void ConnectDialog::saveSettings()
{
m_settings->beginGroup("LastSettings");
m_settings->setValue("PluginName", m_currentSettings.pluginName);
m_settings->setValue("DeviceInterfaceName", m_currentSettings.deviceInterfaceName);
m_settings->setValue("UseAutoscroll", m_currentSettings.useAutoscroll);
m_settings->setValue("UseRingBuffer", m_currentSettings.useModelRingBuffer);
m_settings->setValue("RingBufferSize", m_currentSettings.modelRingBufferSize);
m_settings->setValue("UseCustomConfiguration", m_currentSettings.useConfigurationEnabled);
if (m_currentSettings.useConfigurationEnabled) {
m_settings->setValue("Loopback", configurationValue(QCanBusDevice::LoopbackKey));
m_settings->setValue("ReceiveOwn", configurationValue(QCanBusDevice::ReceiveOwnKey));
m_settings->setValue("ErrorFilter", configurationValue(QCanBusDevice::ErrorFilterKey));
m_settings->setValue("BitRate", configurationValue(QCanBusDevice::BitRateKey));
m_settings->setValue("CanFd", configurationValue(QCanBusDevice::CanFdKey));
m_settings->setValue("DataBitRate", configurationValue(QCanBusDevice::DataBitRateKey));
}
m_settings->endGroup();
}
void ConnectDialog::restoreSettings()
{
m_settings->beginGroup("LastSettings");
m_currentSettings.pluginName = m_settings->value("PluginName").toString();
m_currentSettings.deviceInterfaceName = m_settings->value("DeviceInterfaceName").toString();
m_currentSettings.useAutoscroll = m_settings->value("UseAutoscroll").toBool();
m_currentSettings.useModelRingBuffer = m_settings->value("UseRingBuffer").toBool();
m_currentSettings.modelRingBufferSize = m_settings->value("RingBufferSize").toInt();
m_currentSettings.useConfigurationEnabled = m_settings->value("UseCustomConfiguration").toBool();
revertSettings();
auto setting = [this](const QString &key) {
return m_settings->value(key).toString();
};
if (m_currentSettings.useConfigurationEnabled) {
m_ui->loopbackBox->setCurrentText(setting("Loopback"));
m_ui->receiveOwnBox->setCurrentText(setting("ReceiveOwn"));
m_ui->errorFilterEdit->setText(setting("ErrorFilter"));
m_ui->bitrateBox->setCurrentText(setting("BitRate"));
m_ui->canFdBox->setCurrentText(setting("CanFd"));
m_ui->dataBitrateBox->setCurrentText(setting("DataBitRate"));
}
m_settings->endGroup();
updateSettings();
}
void ConnectDialog::pluginChanged(const QString &plugin)
{
m_ui->interfaceListBox->clear();
m_interfaces = QCanBus::instance()->availableDevices(plugin);
for (const QCanBusDeviceInfo &info : std::as_const(m_interfaces))
m_ui->interfaceListBox->addItem(info.name());
}
void ConnectDialog::interfaceChanged(const QString &interface)
{
const auto deviceInfo = std::find_if(m_interfaces.constBegin(), m_interfaces.constEnd(),
[interface](const QCanBusDeviceInfo &info) {
return interface == info.name();
});
if (deviceInfo == m_interfaces.constEnd())
m_ui->deviceInfoBox->clear();
else
m_ui->deviceInfoBox->setDeviceInfo(*deviceInfo);
}
void ConnectDialog::ok()
{
updateSettings();
saveSettings();
accept();
}
void ConnectDialog::cancel()
{
revertSettings();
reject();
}
QString ConnectDialog::configurationValue(QCanBusDevice::ConfigurationKey key)
{
QVariant result;
for (const ConfigurationItem &item : std::as_const(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->pluginListBox->setCurrentText(m_currentSettings.pluginName);
m_ui->interfaceListBox->setCurrentText(m_currentSettings.deviceInterfaceName);
m_ui->useConfigurationBox->setChecked(m_currentSettings.useConfigurationEnabled);
m_ui->ringBufferBox->setChecked(m_currentSettings.useModelRingBuffer);
m_ui->ringBufferLimitBox->setValue(m_currentSettings.modelRingBufferSize);
m_ui->autoscrollBox->setChecked(m_currentSettings.useAutoscroll);
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.pluginName = m_ui->pluginListBox->currentText();
m_currentSettings.deviceInterfaceName = m_ui->interfaceListBox->currentText();
m_currentSettings.useConfigurationEnabled = m_ui->useConfigurationBox->isChecked();
m_currentSettings.useModelRingBuffer = m_ui->ringBufferBox->isChecked();
m_currentSettings.modelRingBufferSize = m_ui->ringBufferLimitBox->value();
m_currentSettings.useAutoscroll = m_ui->autoscrollBox->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;
value.toInt(&ok); // check if value contains a valid integer
if (ok) {
ConfigurationItem item;
item.first = QCanBusDevice::ErrorFilterKey;
item.second = value;
m_currentSettings.configurations.append(item);
}
}
// process raw filter list
if (!m_ui->rawFilterEdit->text().isEmpty()) {
//TODO current ui not sufficient 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 && m_ui->canFdBox->currentData().toBool()) {
const ConfigurationItem item(QCanBusDevice::DataBitRateKey, QVariant(dataBitrate));
m_currentSettings.configurations.append(item);
}
}
}