#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    //系统现有串口显示
    QStringList serialName;
    foreach(const QSerialPortInfo &info, QSerialPortInfo::availablePorts())
    {
        serialName << info.portName() + " ( " + info.description() + " )";
//        serialName << info.portName();
    }
    ui->serialPortBox->addItems(serialName);

    //串口操作
    serialPort = new QSerialPort(this);

    //串口待发送指令初始化
    instruct.resize(10);
}

Widget::~Widget()
{
    delete ui;
}


void Widget::on_serialStartButton_clicked(bool checked)
{
    //串口初始化
    serialPort->setPortName(ui->serialPortBox->currentText().split(' ')[0]);
    serialPort->setBaudRate(QSerialPort::Baud9600);
    serialPort->setDataBits(QSerialPort::Data8);
    serialPort->setStopBits(QSerialPort::OneStop);
    serialPort->setParity(QSerialPort::NoParity);

    if(checked == true)
    {
        if(serialPort->open(QIODevice::ReadWrite) == true)
            QMessageBox::information(this, "提示", "串口打开成功");
        else
            QMessageBox::critical(this, "提示", "串口打开失败");
    }
    else
    {
        serialPort->close();
    }
}

void Widget::on_pushButton_clicked()
{
    //串口发送PWM直流偏移量
    instruct.fill(0x00);
    instruct[0] = 0x10;
    instruct[9] = ui->pwmBox->currentIndex();
    serialPort->write(instruct);

    //串口发送直流
    instruct.fill(0x00);
    switch(ui->waveBox->currentIndex())
    {
        //直流
        case(0):
            instruct[0] = 0x20;
            instruct[8] = (ui->voltagelineEdit->text().toFloat())/8*4096/256-1;
            instruct[9] = (int)((ui->voltagelineEdit->text().toFloat())/8*4096)%256-1;
            break;
        case(1): break;
        case(2): break;
        case(3): break;
        case(4): break;
    }
    serialPort->write(instruct);
}