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mainwidget.cpp
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mainwidget.cpp
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#include "mainwidget.h"
MainWidget::MainWidget(QWidget *parent)
: QWidget(parent), settings("TurnMeOn", "SerialAsst")
{
//初始化各参数列表
BaudrateList << "256000"
<< "230400"
<< "128000"
<< "115200"
<< "76800"
<< "57600"
<< "43000"
<< "38400"
<< "19200"
<< "14400"
<< "9600"
<< "4800"
<< "2400"
<< "1200";
StopbitsList << "1"
<< "1.5"
<< "2";
DatabitsList << "8"
<< "7"
<< "6"
<< "5";
ParityList << tr("无") << tr("奇校验") << tr("偶校验");
FlowControlList << tr("无") << tr("硬件") << tr("软件");
//初始化ComboBox
COMBox = new QComboBox();
COMBox->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Preferred);
BaudrateBox = new QComboBox();
BaudrateBox->addItems(BaudrateList);
BaudrateBox->setCurrentIndex(settings.value("Baud rate", 0).toInt());
StopbitsBox = new QComboBox();
StopbitsBox->addItems(StopbitsList);
StopbitsBox->setCurrentIndex(settings.value("Stop bits", 0).toInt());
DatabitsBox = new QComboBox();
DatabitsBox->addItems(DatabitsList);
DatabitsBox->setCurrentIndex(settings.value("Data bits", 0).toInt());
ParityBox = new QComboBox();
ParityBox->addItems(ParityList);
ParityBox->setCurrentIndex(settings.value("Parity", 0).toInt());
FlowControlBox = new QComboBox();
FlowControlBox->addItems(FlowControlList);
FlowControlBox->setCurrentIndex(settings.value("Flow Control", 0).toInt());
//初始化label
COMLabel = new QLabel(tr("串口号"));
BaudrateLabel = new QLabel(tr("波特率"));
StopbitsLabel = new QLabel(tr("停止位"));
DatabitsLabel = new QLabel(tr("数据位"));
ParityLabel = new QLabel(tr("校验位"));
FlowControlLabel = new QLabel(tr("流控"));
//发送与接受区域
RecvArea = new QPlainTextEdit();
RecvArea->setReadOnly(true);
QPalette pal;
pal.setColor(QPalette::Base, Qt::black);
pal.setColor(QPalette::Text, Qt::green);
RecvArea->setPalette(pal);
SendArea = new QPlainTextEdit();
QFont areaFont = SendArea->font();
areaFont.setPointSize(11);
SendArea->setFont(areaFont);
areaFont.setPointSize(11);
RecvArea->setFont(areaFont);
// RecvArea->setFont(QFont(tr("Microsoft YaHei UI"), 10));
// SendArea->setFont(QFont(tr("Microsoft YaHei UI Light"), 12));
SendArea->installEventFilter(this);
//按钮
OpenButton = new QPushButton(tr("打开串口"));
SendButton = new QPushButton(tr("发送"));
SendButton->setDisabled(true);
SendButton->setToolTip(tr("Ctrl+Enter"));
ClearRecvButton = new QPushButton(tr("清除接收"));
ClearSendButton = new QPushButton(tr("清除发送"));
connect(OpenButton, &QPushButton::clicked, this, &MainWidget::OpenSerial);
connect(SendButton, &QPushButton::clicked, this, &MainWidget::SendContent);
connect(ClearRecvButton, &QPushButton::clicked, this, &MainWidget::ClearRecv);
connect(ClearSendButton, &QPushButton::clicked, this, &MainWidget::ClearSend);
//复选框
NewLineBox = new QCheckBox(tr("发送新行"));
TimerBox = new QCheckBox(tr("定时发送"));
HexSend = new QCheckBox(tr("发送16进制"));
HexRecv = new QCheckBox(tr("接收16进制"));
HexSend->setToolTip(tr("以空格作为间隔符, \n非法字符及其后面的字符将被忽略"));
// RTS和 DTR复选框
RTSBox = new QCheckBox(tr("RTS"));
DTRBox = new QCheckBox(tr("DTR"));
flowControlLayout = new QHBoxLayout();
flowControlLayout->addWidget(RTSBox);
flowControlLayout->addWidget(DTRBox);
//绑定复选框信号
connect(NewLineBox, &QCheckBox::stateChanged, this, &MainWidget::detNewLine);
connect(TimerBox, &QCheckBox::stateChanged, this, &MainWidget::ControlSendTimer);
connect(HexSend, &QCheckBox::stateChanged, this, &MainWidget::detHex);
connect(HexRecv, &QCheckBox::stateChanged, this, &MainWidget::detRecvHex);
connect(RTSBox, &QCheckBox::stateChanged, this, &MainWidget::RTSControl);
connect(DTRBox, &QCheckBox::stateChanged, this, &MainWidget::DTRControl);
//定时发送spinbox
TimerSpin = new QSpinBox();
TimerSpin->setSuffix(tr(" ms"));
TimerSpin->setMaximum(1000000);
TimerSpin->setValue(1000);
//valueChanged有多个重载
connect(TimerSpin, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
this, &MainWidget::changeSendTimer);
//初始化布局
leftLlayout = new QFormLayout();
leftLlayout->addRow(BaudrateLabel, BaudrateBox);
leftLlayout->addRow(StopbitsLabel, StopbitsBox);
leftLlayout->addRow(DatabitsLabel, DatabitsBox);
leftLlayout->addRow(ParityLabel, ParityBox);
leftLlayout->addRow(FlowControlLabel, FlowControlBox);
leftLlayout->addRow(flowControlLayout);
leftLlayout->addRow(COMLabel, COMBox);
leftLlayout->addRow(OpenButton);
leftLlayout->setAlignment(OpenButton, Qt::AlignVCenter);
leftLlayout->setContentsMargins(15, 25, 15, 25);
leftLlayout->setHorizontalSpacing(20);
leftLlayout->setVerticalSpacing(20);
paramGroup = new QGroupBox(tr("串口参数"));
paramGroup->setLayout(leftLlayout);
paramGroup->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
cvlayout = new QVBoxLayout();
cvlayout->addWidget(RecvArea, 7);
cvlayout->addWidget(SendArea, 2);
bottomLayout = new QHBoxLayout();
bottomLayout->addWidget(ClearSendButton, 0, Qt::AlignLeft);
bottomLayout->addWidget(HexSend);
bottomLayout->addWidget(NewLineBox, 0, Qt::AlignLeft);
bottomLayout->addWidget(TimerBox, 0, Qt::AlignRight);
bottomLayout->addWidget(TimerSpin, 1, Qt::AlignLeft);
bottomLayout->addWidget(SendButton, 0, Qt::AlignRight);
rightLayout = new QVBoxLayout();
rightLayout->addWidget(ClearRecvButton, 0, Qt::AlignCenter);
rightLayout->addWidget(HexRecv);
centralLayout = new QGridLayout(this);
centralLayout->addWidget(paramGroup, 0, 0, 2, 1);
centralLayout->addLayout(bottomLayout, 1, 1);
centralLayout->addLayout(cvlayout, 0, 1, 1, 1);
centralLayout->addLayout(rightLayout, 0, 2, Qt::AlignTop);
centralLayout->setColumnMinimumWidth(0, 150);
centralLayout->setColumnMinimumWidth(2, 100);
centralLayout->setColumnStretch(0, 0);
centralLayout->setColumnStretch(1, 2);
centralLayout->setColumnStretch(2, 0);
setLayout(centralLayout);
//计时器 初始化
CheckTimer = new QTimer(this);
CheckTimer->start(1000);
SendTimer = new QTimer(this);
connect(CheckTimer, &QTimer::timeout, this, &MainWidget::CheckSerials);
connect(SendTimer, &QTimer::timeout, SendButton, &QPushButton::click);
//初始化串口列表
CheckSerials();
//开始串口进程
serialController = new SerialController(this);
//connect开关串口控制信号 以及是否成功的返回信号
connect(this, &MainWidget::requestOpen, serialController, &SerialController::openSerial);
connect(this, &MainWidget::requestClose, serialController, &SerialController::closeSerial);
connect(serialController, &SerialController::openSuccess, this, &MainWidget::serialOpened);
connect(serialController, &SerialController::openFailed, this, &MainWidget::serialNotOpened);
connect(serialController, &SerialController::closeSuccess, this, &MainWidget::serialClosed);
//connect波特率等参数的控制信号
connect(this, &MainWidget::setBaudRate, serialController, &SerialController::getBaudrate);
connect(this, &MainWidget::setStopBits, serialController, &SerialController::getStopbits);
connect(this, &MainWidget::setDataBits, serialController, &SerialController::getDatabits);
connect(this, &MainWidget::setParity, serialController, &SerialController::getParity);
connect(this, &MainWidget::setFlowControl, serialController, &SerialController::getFlowControl);
connect(BaudrateBox,
&QComboBox::currentTextChanged,
serialController,
&SerialController::getBaudrate);
connect(StopbitsBox, &QComboBox::currentTextChanged, serialController, &SerialController::getStopbits);
connect(DatabitsBox, &QComboBox::currentTextChanged, serialController, &SerialController::getDatabits);
connect(ParityBox, &QComboBox::currentTextChanged, serialController, &SerialController::getParity);
connect(this, &MainWidget::changeRTS, serialController, &SerialController::contrloRTS);
connect(this, &MainWidget::changeDTR, serialController, &SerialController::controlDTR);
connect(this, &MainWidget::sendData, serialController, &SerialController::writeData);
connect(serialController, &SerialController::recvData, this, &MainWidget::getRecv);
}
void MainWidget::CheckSerials()
{
//不断检查可用串口列表,并与当前列表进行比较,若发生变化则重新生成列表
emit sendDateTime(QDateTime::currentDateTime().toString(Qt::ISODate)); //更新状态栏时间
QList<QSerialPortInfo> SerialList = QSerialPortInfo::availablePorts();
if (!SerialList.isEmpty()) {
QStringList TmpComList, TmpPortNameList, TmpDesList;
for (QSerialPortInfo &serial : SerialList) {
TmpComList << serial.portName() + " " + serial.description();
TmpPortNameList << serial.portName();
TmpDesList << serial.description();
}
if (COMList != TmpComList)
{
//TODO: 可用串口发生改变却不为空时,保持串口打开状态,及其他细节的处理
//只在串口发生变化时刷新ComboBox
COMList = TmpComList;
PortNameList = TmpPortNameList;
DescList = TmpDesList;
COMBox->setDisabled(false);
COMBox->clear();
// COMBox->addItems(PortNameList);
COMBox->addItems(COMList);
OpenButton->setDisabled(false);
for (int i = 0; i < COMList.count(); i++) //为串口列表增加ToolTip
{
COMBox->setItemData(i, DescList[i], Qt::ToolTipRole);
}
}
} else //可用串口为空时发送关闭串口信号
{
COMBox->clear();
COMList.clear();
COMBox->addItem(tr("(空)"));
COMBox->setDisabled(true);
OpenButton->setDisabled(true);
CloseSerial();
isOpened = false;
}
}
MainWidget::~MainWidget()
{
// SerialThr.terminate();
settings.setValue("Baud rate", BaudrateBox->currentIndex());
settings.setValue("Stop bits", StopbitsBox->currentIndex());
settings.setValue("Data bits", DatabitsBox->currentIndex());
settings.setValue("Parity", ParityBox->currentIndex());
settings.setValue("Flow Control", FlowControlBox->currentIndex());
}
void MainWidget::serialOpened()
{
isOpened = true;
int portIndex = COMBox->currentIndex();
emit sendStatus(QString(PortNameList[portIndex] + tr(" ") + DescList[portIndex]));
//串口关闭时无法设置RTS,DTR信号(但此时checkbox仍然是可操作的),串口打开时发送stateChanged信号来应用改变
emit RTSBox->stateChanged(RTSBox->checkState());
emit DTRBox->stateChanged(DTRBox->checkState());
//相应控件可用性做出改变(setDisabled)
ActionAttachToSerial(true);
}
void MainWidget::serialNotOpened()
{
//设置状态栏 并发出警告音
//TODO: 此处应有更容易察觉的提示
emit sendStatus(tr("串口打开失败"));
QApplication::beep();
}
void MainWidget::serialClosed()
{
isOpened = false;
//相应控件可用性做出改变(setDisabled)
ActionAttachToSerial(false);
emit sendStatus(tr("串口已关闭"));
}
void MainWidget::getRecv(const QByteArray &recv)
{
RecvArea->moveCursor(QTextCursor::End);
//需要时将受到的数据进行16进制转换
//TODO: 支持更多编码(可选择)
if (!isRecvHex)
RecvArea->textCursor().insertText(QString::fromLocal8Bit(recv));
else
{
if (!RecvArea->toPlainText().isEmpty())
RecvArea->textCursor().insertText(QChar(HEX_SEPARATOR));
RecvArea->textCursor().insertText(QString(recv.toHex(HEX_SEPARATOR)));
}
}
void MainWidget::OpenSerial()
{
QString portName = COMBox->currentText();
emit setBaudRate(BaudrateBox->currentText());
emit setStopBits(StopbitsBox->currentText());
emit setDataBits(DatabitsBox->currentText());
emit setParity(ParityBox->currentText());
emit setFlowControl(FlowControlBox->currentText());
emit requestOpen(portName);
}
void MainWidget::CloseSerial()
{
emit requestClose();
}
void MainWidget::ClearRecv()
{
RecvArea->clear();
}
void MainWidget::ClearSend()
{
SendArea->clear();
}
void MainWidget::detNewLine(int state)
{
if (state == 2)
isSendNewLine = true;
else if (state == 0)
isSendNewLine = false;
}
void MainWidget::ControlSendTimer(int state)
{
if (state == 0)
SendTimer->stop();
else if (state == 2)
SendTimer->start(TimerSpin->value());
}
void MainWidget::changeSendTimer()
{
ControlSendTimer(TimerBox->checkState());
}
void MainWidget::detHex(int state)
{
//TODO: 换行也可以作为16进制的分隔符
if (state == 2)
{
isSendHex = true;
// SendArea->setPlainText(SendArea->toPlainText().toLocal8Bit().toHex(' '));
}
else if (state == 0)
{
isSendHex = false;
// QString tmpstr = SendArea->toPlainText();
// SendArea->clear();
// SendArea->setPlainText(HexStringToString(tmpstr));
}
}
void MainWidget::detRecvHex(int state)
{
if (state == 2)
{
isRecvHex = true;
// RecvArea->setPlainText(RecvArea->toPlainText().toLocal8Bit().toHex(' '));
// RecvArea->moveCursor(QTextCursor::End);
// RecvArea->insertPlainText(tr(" "));
}
else if (state == 0)
{
isRecvHex = false;
// QString tmpstr = RecvArea->toPlainText();
// RecvArea->clear();
// RecvArea->setPlainText(HexStringToString(tmpstr));
}
}
void MainWidget::RTSControl(int state)
{
if(isOpened)
{
if(state == 2)
emit changeRTS(true);
else if(state == 0)
emit changeRTS(false);
}
}
void MainWidget::DTRControl(int state)
{
if(isOpened)
{
if(state == 2)
emit changeDTR(true);
else if(state == 0)
emit changeDTR(false);
}
}
QByteArray MainWidget::HexStringToString(const QString &hexstr)
{
//将内容为16进制字符串的string转换成16进制对应的内容
QStringList list = hexstr.split(' ');
QByteArray bytes;
char currentByte{0};
bool hasReadFirstChar = false;
for (auto ch : hexstr) {
auto ascii = ch.toLatin1();
if (ch == ' ') { // 允许空格
continue;
}
auto numHex = convertAsciiToHex(ascii);
if (numHex < 0) {
return bytes;
}
if (!hasReadFirstChar) {
currentByte += (numHex - '0') << 4;
hasReadFirstChar = true;
} else {
currentByte += numHex;
bytes.append(currentByte);
hasReadFirstChar = false;
currentByte = 0;
}
}
return bytes;
}
char MainWidget::convertAsciiToHex(char ascii)
{
if (ascii >= '0' && ascii <= '9') {
return ascii - '0';
} else if (ascii >= 'a' && ascii <= 'f') {
return 10 + ascii - 'a';
} else if (ascii >= 'A' && ascii <= 'F') {
return 10 + ascii - 'A';
} else {
return -1;
}
}
void MainWidget::ActionAttachToSerial(bool set)
{
//根据串口开关状态决定一些控件的可用性
if(set)
{
OpenButton->setText(tr("关闭串口"));
COMBox->setDisabled(true);
SendButton->setDisabled(false);
disconnect(OpenButton, &QPushButton::clicked, this, &MainWidget::OpenSerial);
connect(OpenButton, &QPushButton::clicked, this, &MainWidget::CloseSerial);
}
else
{
OpenButton->setText(tr("打开串口"));
COMBox->setDisabled(false);
SendButton->setDisabled(true);
disconnect(OpenButton, &QPushButton::clicked, this, &MainWidget::CloseSerial);
connect(OpenButton, &QPushButton::clicked, this, &MainWidget::OpenSerial);
}
}
void MainWidget::SendContent()
{
QString content = SendArea->toPlainText();
QByteArray bytes;
if (isSendNewLine)
content += "\n";
if (isSendHex) {
bytes = HexStringToString(content);
} else {
bytes = content.toLatin1();
}
emit sendData(bytes);
}
bool MainWidget::eventFilter(QObject *watched, QEvent *event)
{
if (watched == SendArea && event->type() == QEvent::KeyPress)
{
QKeyEvent *e = reinterpret_cast<QKeyEvent *>(event);
if (e->modifiers() == Qt::ControlModifier)
{
switch (e->key())
{
case Qt::Key_Enter:
case Qt::Key_Return:
SendButton->click();
break;
default:
break;
}
}
}
return QWidget::eventFilter(watched, event);
}