#include "mainwindow.h"
#include "ui_mainwindow.h"

#include<QGridLayout>
#include<QFileDialog>
#include<QPushButton>
#include <QDebug>
#include <QMessageBox>


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

    Init();
}

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

void MainWindow::openFile()
{
    QString s = QFileDialog::getOpenFileName(this,"选择文件","/", "Files(*.json)");
    qDebug() << s << endl;
}

void MainWindow::scanSerialPort()
{
    /* 查找可用串口 */
    foreach (const QSerialPortInfo &info, QSerialPortInfo::availablePorts()) {
//        ui->SerialPort->addItem(info.portName());
        ui->SerialPort->addItem(info.portName() + ":" +info.description());
    }

}

void MainWindow::parityItemInit()
{
    QList <QString> list;
    list<<"None"<<"Even"<<"Odd"<<"Space"<<"Mark";
    for (int i = 0; i < 5; i++) {
        ui->comboBox_4->addItem(list[i]);
    }
    ui->comboBox_4->setCurrentIndex(0);
}

void MainWindow::Init()
{
    scanSerialPort();
    parityItemInit();
    serialPort = new QSerialPort(this);

    connect(ui->openFile,SIGNAL(clicked()),this,SLOT(openFile()));
    connect(ui->SerialPortPushButton,SIGNAL(clicked())
            ,this,SLOT(openSerialPortPushButtonClicked()));

}

void MainWindow::openSerialPortPushButtonClicked()
{
    if (ui->SerialPortPushButton->text() == "打开串口") {
        /* 设置串口名 */
//        serialPort->setPortName(ui->SerialPort->currentText());
        serialPort->setPort((const QSerialPortInfo)(ui->SerialPort->currentText().section(':', 0, 0)));

        /* 设置波特率 */
        serialPort->setBaudRate(ui->comboBox_2->currentText().toInt());

        /* 设置数据位数 */
        switch (ui->comboBox_3->currentText().toInt()) {
        case 5:
            serialPort->setDataBits(QSerialPort::Data5);
            break;
        case 6:
            serialPort->setDataBits(QSerialPort::Data6);
            break;
        case 7:
            serialPort->setDataBits(QSerialPort::Data7);
            break;
        case 8:
            serialPort->setDataBits(QSerialPort::Data8);
            break;
        default: break;
        }

        /* 设置奇偶校验 */
        switch (ui->comboBox_4->currentIndex()) {
        case 0:
            serialPort->setParity(QSerialPort::NoParity);
            break;
        case 1:
            serialPort->setParity(QSerialPort::EvenParity);
            break;
        case 2:
            serialPort->setParity(QSerialPort::OddParity);
            break;
        case 3:
            serialPort->setParity(QSerialPort::SpaceParity);
            break;
        case 4:
            serialPort->setParity(QSerialPort::MarkParity);
            break;
        default: break;
        }

        /* 设置停止位 */
        switch (ui->comboBox_5->currentText().toInt()) {
        case 1:
            serialPort->setStopBits(QSerialPort::OneStop);
            break;
        case 2:
            serialPort->setStopBits(QSerialPort::TwoStop);
            break;
        default: break;
        }

        /* 设置流控制 */
        serialPort->setFlowControl(QSerialPort::NoFlowControl);
        if (!serialPort->open(QIODevice::ReadWrite))
            QMessageBox::about(NULL, "错误",
            "串口无法打开！可能串口已经被占用！");
        else {
            ui->SerialPort->setEnabled(false);
            ui->comboBox_2->setEnabled(false);
            ui->comboBox_3->setEnabled(false);
            ui->comboBox_4->setEnabled(false);
            ui->comboBox_5->setEnabled(false);

            ui->SerialPortPushButton->setText("关闭串口");
            ui->label_6->setStyleSheet("color: red;");
//            pushButton[0]->setEnabled(true);
        }

    } else {
        serialPort->close();
        ui->SerialPort->setEnabled(true);
        ui->comboBox_2->setEnabled(true);
        ui->comboBox_3->setEnabled(true);
        ui->comboBox_4->setEnabled(true);
        ui->comboBox_5->setEnabled(true);
        ui->label_6->setStyleSheet("color: block;");
        ui->SerialPortPushButton->setText("打开串口");
    }
}