# Qt开发的通用函数库

**Repository Path**: Mike_Zhou_Admin/Mike_Zhou_MY_QT_DEF

## Basic Information

- **Project Name**: Qt开发的通用函数库
- **Description**: 为了使开发更方便 对使用到的模块进行了总结 最终封装成了一个类、函数库
使用typedef、class类、回调函数等来建立 方便打包和开发
文章：
https://blog.csdn.net/weixin_53403301/article/details/141467062
- **Primary Language**: C++
- **License**: AGPL-3.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 2
- **Forks**: 0
- **Created**: 2024-08-23
- **Last Updated**: 2025-12-04

## Categories & Tags

**Categories**: Uncategorized

**Tags**: Qt, 嵌入式, 上位机

## README

# 【Qt开发】建立自己的Qt基本类、函数库封装 包括图表、多线程、串口等

#### 介绍
为了使开发更方便 对使用到的模块进行了总结 最终封装成了一个类、函数库
使用typedef、class类、回调函数等来建立 方便打包和开发
文章：
https://blog.csdn.net/weixin_53403301/article/details/141467062

后续更新以gitee为准

更新了移植LVGL的API函数库
https://blog.csdn.net/weixin_53403301/article/details/144278246
【Qt移植LVGL】QWidget手搓LVGL模拟软件仿真模拟器（非直接运行图形库）

# QtCharts绘图

[【Qt开发】QtCharts图表 在ui上添加QChartView控件并进行绘图配置](https://mikezhou.blog.csdn.net/article/details/141168015)
可以实现一键配置

```cpp
#ifndef MY_QT_DEF_H
#define MY_QT_DEF_H
#include <QValueAxis>
#include <QList>
#include <QSplineSeries>
#include <QString>
#include <QChart>
#include <QChartView>
QT_CHARTS_USE_NAMESPACE

typedef struct
{
    float min;
    float max;

    QString tittle;
    QString format;
    Qt::Alignment alignment;

    QValueAxis *axis;
}MY_QChartView_Float_Axis_Struct;

//splineSeries曲线实例化（折线用QLineSeries）
typedef struct
{
    int maxSize;
    QList<float> data;
    QString tittle;

    MY_QChartView_Float_Axis_Struct X;
    MY_QChartView_Float_Axis_Struct Y;

    QPainter::RenderHint renderHint;
    //上面是必配置的参数 下面是指针类型
    QSplineSeries *splineSeries;

    QChart *chart;
    QChartView *chartView;
}MY_QChartView_Float_Struct;

void Init_MY_QChartView_Float_Axis_Struct(MY_QChartView_Float_Axis_Struct *Stu,QChart *chart);
void Init_MY_QChartView_Float_Struct(MY_QChartView_Float_Struct *Stu);
void Add_MY_QChartView_Float_Value(MY_QChartView_Float_Struct *Stu,float value);

#endif // MY_QT_DEF_H


```

```cpp
#include "MY_QT_DEF.h"

void Init_MY_QChartView_Float_Axis_Struct(MY_QChartView_Float_Axis_Struct *Stu,QChart *chart)
{
    Stu->axis->setLabelFormat(Stu->format);
    Stu->axis->setTitleText(Stu->tittle);
    chart->addAxis(Stu->axis, Stu->alignment);
    Stu->axis->setRange(Stu->min,Stu->max);
}

void Init_MY_QChartView_Float_Struct(MY_QChartView_Float_Struct *Stu)
{
    Stu->chart=new QChart();
    Stu->splineSeries = new QSplineSeries();
    Stu->X.axis=new QValueAxis();
    Stu->Y.axis=new QValueAxis();

    Stu->chart->legend()->hide();
    Stu->chart->setTitle(Stu->tittle);
    Stu->chart->addSeries(Stu->splineSeries);

    Init_MY_QChartView_Float_Axis_Struct(&Stu->X,Stu->chart);
    Init_MY_QChartView_Float_Axis_Struct(&Stu->Y,Stu->chart);

    Stu->splineSeries->attachAxis(Stu->X.axis);
    Stu->splineSeries->attachAxis(Stu->Y.axis);

    Stu->chartView->setChart(Stu->chart);
    Stu->chartView->setRenderHint(Stu->renderHint);
}

//添加数据自动移动函数
void Add_MY_QChartView_Float_Value(MY_QChartView_Float_Struct *Stu,float value)
{
    Stu->data.append(value);
    while (Stu->data.size() > Stu->maxSize)
    {
        Stu->data.removeFirst();
    }

    Stu->splineSeries->clear();

    float xSpace = (Stu->X.max-Stu->X.min) / (Stu->maxSize - 1);

    for (int i = 0; i < Stu->data.size(); ++i)
    {
        Stu->splineSeries->append(xSpace * i, Stu->data.at(i));
    }
}


```
# 继承QObject的QThread多线程
采用moveToThread方法执行多线程
对整体进行了封装
可以自我调用
可以通过注册回调函数来进行不同的工作
[【Qt开发】多线程QThread（通过QObject::moveToThread）和QMutex互斥锁的配置和多线程类的封装及回调函数](https://mikezhou.blog.csdn.net/article/details/141252352)
```cpp
//QObject的多线程示例
class MY_Thread_Worker;
class MY_Thread_Worker : public QObject
{
    Q_OBJECT
private:
    QMutex lock;
    bool isCanRun;
    bool isCanStart;
    MY_QT_CALLBACK pfCallback;
public slots:
    void Judg_doWork(void)
    {
        this->isCanRun=true;
        //执行
        while(this->isCanRun)
        {
            QMutexLocker locker(&this->lock);
            pfCallback(this,0,NULL);
        }
        isCanStart=true;
    }

signals:
    void startWork(void);
public:
    void * pArg;
    QThread *workerThread;

    void stopWork(bool Wait_Flag)
    {
        this->isCanRun = false;
        if(Wait_Flag)
        {
            QMutexLocker locker(&this->lock);
        }
    }

    bool startThread(void)
    {
        if(!isCanRun && isCanStart)
        {
            isCanStart=false;
            workerThread->start();
            emit this->startWork();
            return true;
        }
        return false;
    }

    bool stopThread(bool Wait_Flag)
    {
        if(workerThread->isRunning())
        {
            stopWork(Wait_Flag);
            return true;
        }
        return false;
    }

    void closeThread(void)
    {
        stopThread(false);
        this->workerThread->quit();
    }

    MY_Thread_Worker(MY_QT_CALLBACK const pfunc,QThread * worker_Thread = nullptr)
    {
        pfCallback=pfunc;
        pArg=nullptr;
        if(!worker_Thread)
        {
            this->workerThread = new QThread;
        }
        else
        {
            this->workerThread = worker_Thread;
        }
        this->moveToThread(workerThread);
        this->stopWork(false);
        isCanStart=true;
        connect(workerThread, SIGNAL(finished()),this, SLOT(deleteLater()));
        connect(workerThread, SIGNAL(finished()), workerThread, SLOT(deleteLater()));
        connect(this, SIGNAL(startWork()), this, SLOT(Judg_doWork()));
        // connect(this, SIGNAL(startWork(QString)), worker, SLOT(Judg_doWork(QString)));  主窗口发送函数
        // connect(worker, SIGNAL(resultReady(QString)),this, SLOT(handleResults(QString)));  主窗口接收函数
    }

    ~MY_Thread_Worker()
    {
        closeThread();
    }
};


```
# QSerialPort串口配置、发送、接收回调函数
包装的类具有 单线程/多线程 回调函数/虚函数四种配置方案
同样采用回调函数方便配置和修改
[【Qt开发】QSerialPort串口配置、发送、接收回调函数 多线程接收的串口类封装](https://mikezhou.blog.csdn.net/article/details/141365298)

```cpp
class MY_SerialPort_Thread;
class MY_SerialPort_Thread : public QObject
{
    Q_OBJECT
private:
    QMutex lock;
    bool isCanRun;
    bool isCanStart;
    bool Thread_Flag;

    MY_QT_CALLBACK pfCallback;
public slots:
    void SerialPort_RX(void)
    {
        SerialPort_RX_Ready_Callback(this);
    }

    void Callback_SerialPort_RX(void)
    {
        pfCallback(this,0,NULL);
    }

    void RX_Thread(void)
    {
        this->isCanRun=true;
        //执行
        while(isCanRun)
        {
            QMutexLocker locker(&this->lock);
            if(SerialPort.waitForReadyRead(1))
            {
                SerialPort_RX_Thread_Callback(this);
            }
        }
        isCanStart=true;
    }

    void Callback_RX_Thread(void)
    {
        this->isCanRun=true;
        //执行
        while(isCanRun)
        {
            QMutexLocker locker(&this->lock);
            if(SerialPort.waitForReadyRead(1))
            {
                pfCallback(this,1,NULL);
            }
        }
        isCanStart=true;
    }

signals:
    void Start_RX_Thread(void);

public:
    QSerialPort SerialPort;
    QList<QString> SerialPort_List;
    QString SerialPort_Name;
    uint32_t BaudRate;
    uint8_t DataBits;
    uint8_t StopBits;
    QSerialPort::Parity Parity;
    QSerialPort::FlowControl FlowControl;

    bool Open_Flag;
    uint8_t RX_Data;
    uint8_t *RX_Buf;
    uint32_t RX_Buf_Size;
    uint32_t RX_Flag;

    QThread workerThread;

    void Stop_Port(uint8_t TX_RX_All)
    {
        switch(TX_RX_All)
        {
            case 0:SerialPort.clear(QSerialPort::Output);break;
            case 1:SerialPort.clear(QSerialPort::Input);break;
            default:SerialPort.clear();SerialPort.flush();break;
        }
    }

    void Scan_SerialPort(void)
    {
        SerialPort_List.clear();
        foreach (const QSerialPortInfo &info,QSerialPortInfo::availablePorts())
        {
            SerialPort_List.append(info.portName());
        }
    }

    void Clean_RX(void)
    {
        RX_Flag=0;
        RX_Data=0;
        memset(RX_Buf,0,RX_Buf_Size);
    }

    void Reset_SerialPort(void)
    {
        Scan_SerialPort();
        BaudRate=115200;
        DataBits=8;
        StopBits=1;
        Parity=QSerialPort::NoParity;
        FlowControl = QSerialPort::NoFlowControl;
        if(Open_Flag)
        {
            Stop_Port(2);
        }
        Clean_RX();
    }

    bool Ctrl_SerialPort(bool OpenNotClose)
    {
        if(OpenNotClose)
        {

            SerialPort.setPortName(SerialPort_Name);
            SerialPort.setBaudRate(BaudRate);
            SerialPort.setFlowControl(FlowControl);

            switch(DataBits)
            {
            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;
            }

            SerialPort.setParity(Parity);

            switch(StopBits)
            {
            case 1:SerialPort.setStopBits(QSerialPort::OneStop);break;
            case 2:SerialPort.setStopBits(QSerialPort::TwoStop);break;
            case 3:SerialPort.setStopBits(QSerialPort::OneAndHalfStop);break;
            default:break;
            }

            if (!SerialPort.open(QIODevice::ReadWrite))
            {
                return false;
            }
            Open_Flag=true;
            if(this->Thread_Flag)
            {
                startThread();
            }
            return true;
        }

        stopThread(true);
        Open_Flag=false;
        SerialPort.close();        
        return true;
    }

    uint32_t SerialPort_TX_Sequence(uint8_t *buf,uint32_t size)
    {
        if(Open_Flag)
        {
            return SerialPort.write((char *)buf,size);
        }
        return 0;
    }

    uint32_t SerialPort_TX(uint8_t *buf,uint32_t size)
    {
        if(Open_Flag)
        {
            SerialPort.clear(QSerialPort::Output);
            return SerialPort.write((char *)buf,size);
        }
        return 0;
    }

    virtual void SerialPort_RX_Ready_Callback(MY_SerialPort_Thread *port)
    {
        Q_UNUSED(port);
        foreach (const uint8_t i,port->SerialPort.readAll())
        {
            port->RX_Data=i;
            SerialPort_RX_Callback(port);
        }
    }

    virtual void SerialPort_RX_Thread_Callback(MY_SerialPort_Thread *port)
    {
        Q_UNUSED(port);
        foreach (const uint8_t i,port->SerialPort.readAll())
        {
            port->RX_Data=i;
            SerialPort_RX_Callback(port);
        }
    }

    virtual void SerialPort_RX_Callback(MY_SerialPort_Thread *port)
    {
        Q_UNUSED(port);
        qDebug()<<port->RX_Data;
    }

    void stopWork(bool Wait_Flag)
    {
        this->isCanRun = false;
        if(Wait_Flag)
        {
            QMutexLocker locker(&this->lock);
        }
    }

    bool startThread(void)
    {
        if(!isCanRun && isCanStart)
        {
            isCanStart=false;
            workerThread.start();
            emit this->Start_RX_Thread();
            return true;
        }
        return false;
    }

    bool stopThread(bool Wait_Flag)
    {
        if(workerThread.isRunning())
        {
            stopWork(Wait_Flag);
            return true;
        }
        return false;
    }

    void closeThread(void)
    {
        stopThread(false);
        this->workerThread.quit();
    }

    MY_SerialPort_Thread(uint32_t Buf_Size=256,bool ThreadNotNormal=false,MY_QT_CALLBACK const pfunc=nullptr)
    {
        pfCallback=pfunc;
        SerialPort_Name="";
        Open_Flag=false;
        RX_Buf_Size = Buf_Size;
        RX_Buf = new uint8_t[RX_Buf_Size];
        SerialPort.setReadBufferSize(RX_Buf_Size);
        this->Thread_Flag = ThreadNotNormal;
        Reset_SerialPort();
        if(Thread_Flag)
        {
            this->moveToThread(&workerThread);
            this->stopWork(false);
            isCanStart=true;
            connect(&workerThread, SIGNAL(finished()),this, SLOT(deleteLater()));
            connect(&workerThread, SIGNAL(finished()), &workerThread, SLOT(deleteLater()));
            if(pfCallback)
            {
                connect(this, SIGNAL(Start_RX_Thread()), this, SLOT(Callback_RX_Thread()));
            }
            else
            {
                connect(this, SIGNAL(Start_RX_Thread()), this, SLOT(RX_Thread()));
            }
        }
        else
        {            
            if(pfCallback)
            {
                connect(&this->SerialPort, SIGNAL(readyRead()),this, SLOT(Callback_SerialPort_RX()));
            }
            else
            {
                connect(&this->SerialPort, SIGNAL(readyRead()),this, SLOT(SerialPort_RX()));
            }
        }
    }

    ~MY_SerialPort_Thread()
    {
        Open_Flag=false;
        SerialPort.close();
        delete RX_Buf;
        closeThread();
    }
};


```