| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 Andre Hartmann <aha_1980@gmx.de> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the examples of the QtSerialBus module. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** Commercial License Usage |
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| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
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| ** "Redistribution and use in source and binary forms, with or without |
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| ****************************************************************************/ |
| |
| #include "sendframebox.h" |
| #include "ui_sendframebox.h" |
| |
| enum { |
| MaxStandardId = 0x7FF, |
| MaxExtendedId = 0x10000000 |
| }; |
| |
| enum { |
| MaxPayload = 8, |
| MaxPayloadFd = 64 |
| }; |
| |
| HexIntegerValidator::HexIntegerValidator(QObject *parent) : |
| QValidator(parent), |
| m_maximum(MaxStandardId) |
| { |
| } |
| |
| QValidator::State HexIntegerValidator::validate(QString &input, int &) const |
| { |
| bool ok; |
| uint value = input.toUInt(&ok, 16); |
| |
| if (input.isEmpty()) |
| return Intermediate; |
| |
| if (!ok || value > m_maximum) |
| return Invalid; |
| |
| return Acceptable; |
| } |
| |
| void HexIntegerValidator::setMaximum(uint maximum) |
| { |
| m_maximum = maximum; |
| } |
| |
| HexStringValidator::HexStringValidator(QObject *parent) : |
| QValidator(parent), |
| m_maxLength(MaxPayload) |
| { |
| } |
| |
| QValidator::State HexStringValidator::validate(QString &input, int &pos) const |
| { |
| const int maxSize = 2 * m_maxLength; |
| const QChar space = QLatin1Char(' '); |
| QString data = input; |
| data.remove(space); |
| |
| if (data.isEmpty()) |
| return Intermediate; |
| |
| // limit maximum size and forbid trailing spaces |
| if ((data.size() > maxSize) || (data.size() == maxSize && input.endsWith(space))) |
| return Invalid; |
| |
| // check if all input is valid |
| const QRegularExpression re(QStringLiteral("^[[:xdigit:]]*$")); |
| if (!re.match(data).hasMatch()) |
| return Invalid; |
| |
| // insert a space after every two hex nibbles |
| const QRegularExpression insertSpace(QStringLiteral("(?:[[:xdigit:]]{2} )*[[:xdigit:]]{3}")); |
| if (insertSpace.match(input).hasMatch()) { |
| input.insert(input.size() - 1, space); |
| pos = input.size(); |
| } |
| |
| return Acceptable; |
| } |
| |
| void HexStringValidator::setMaxLength(int maxLength) |
| { |
| m_maxLength = maxLength; |
| } |
| |
| SendFrameBox::SendFrameBox(QWidget *parent) : |
| QGroupBox(parent), |
| m_ui(new Ui::SendFrameBox) |
| { |
| m_ui->setupUi(this); |
| |
| m_hexIntegerValidator = new HexIntegerValidator(this); |
| m_ui->frameIdEdit->setValidator(m_hexIntegerValidator); |
| m_hexStringValidator = new HexStringValidator(this); |
| m_ui->payloadEdit->setValidator(m_hexStringValidator); |
| |
| connect(m_ui->dataFrame, &QRadioButton::toggled, [this](bool set) { |
| if (set) |
| m_ui->flexibleDataRateBox->setEnabled(true); |
| }); |
| |
| connect(m_ui->remoteFrame, &QRadioButton::toggled, [this](bool set) { |
| if (set) { |
| m_ui->flexibleDataRateBox->setEnabled(false); |
| m_ui->flexibleDataRateBox->setChecked(false); |
| } |
| }); |
| |
| connect(m_ui->errorFrame, &QRadioButton::toggled, [this](bool set) { |
| if (set) { |
| m_ui->flexibleDataRateBox->setEnabled(false); |
| m_ui->flexibleDataRateBox->setChecked(false); |
| } |
| }); |
| |
| connect(m_ui->extendedFormatBox, &QCheckBox::toggled, [this](bool set) { |
| m_hexIntegerValidator->setMaximum(set ? MaxExtendedId : MaxStandardId); |
| }); |
| |
| connect(m_ui->flexibleDataRateBox, &QCheckBox::toggled, [this](bool set) { |
| m_hexStringValidator->setMaxLength(set ? MaxPayloadFd : MaxPayload); |
| m_ui->bitrateSwitchBox->setEnabled(set); |
| if (!set) |
| m_ui->bitrateSwitchBox->setChecked(false); |
| }); |
| |
| auto frameIdTextChanged = [this]() { |
| const bool hasFrameId = !m_ui->frameIdEdit->text().isEmpty(); |
| m_ui->sendButton->setEnabled(hasFrameId); |
| m_ui->sendButton->setToolTip(hasFrameId |
| ? QString() : tr("Cannot send because no Frame ID was given.")); |
| }; |
| connect(m_ui->frameIdEdit, &QLineEdit::textChanged, frameIdTextChanged); |
| frameIdTextChanged(); |
| |
| connect(m_ui->sendButton, &QPushButton::clicked, [this]() { |
| const uint frameId = m_ui->frameIdEdit->text().toUInt(nullptr, 16); |
| QString data = m_ui->payloadEdit->text(); |
| const QByteArray payload = QByteArray::fromHex(data.remove(QLatin1Char(' ')).toLatin1()); |
| |
| QCanBusFrame frame = QCanBusFrame(frameId, payload); |
| frame.setExtendedFrameFormat(m_ui->extendedFormatBox->isChecked()); |
| frame.setFlexibleDataRateFormat(m_ui->flexibleDataRateBox->isChecked()); |
| frame.setBitrateSwitch(m_ui->bitrateSwitchBox->isChecked()); |
| |
| if (m_ui->errorFrame->isChecked()) |
| frame.setFrameType(QCanBusFrame::ErrorFrame); |
| else if (m_ui->remoteFrame->isChecked()) |
| frame.setFrameType(QCanBusFrame::RemoteRequestFrame); |
| |
| emit sendFrame(frame); |
| }); |
| } |
| |
| SendFrameBox::~SendFrameBox() |
| { |
| delete m_ui; |
| } |