CodeRepository/Samples/Sample.SQLite3/mainwindow.cpp

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

#include <QFile>
#include <QMessageBox>
#include <QFileDialog>
#include <QString>
#include <QDebug>

#include "commonhelper.h"
#include "frameless_helper.h"

#include <mmsystem.h>
#pragma comment(lib, "winmm")

#define MaxSize_IRSensorTool   (4096*2048)

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

    this->setWindowTitle(tr(" ") );

    // OpenGLView
    //this->setAttribute(Qt::WA_Mapped);

    //
    m_bMousePressed = false;

    //
    m_bThreadRunning_CaptureDeviceData = false;
    m_ptrThread_CaptureDeviceData = nullptr;

    // 初始化界面
    InitStyle();

    // 加载信号槽函数连接
    Connect();

    m_pGdSQLite3 = new GdSQLite3();
    m_pGdSQLite3->OpenDB("MyTestDB.db");

    m_nInsertIndex = 11;
}

MainWindow::~MainWindow()
{
    //
    Disconnect();

    if(nullptr != m_pGdSQLite3)
    {
        m_pGdSQLite3->CloseDB();

        delete m_pGdSQLite3;
        m_pGdSQLite3 = nullptr;
    }

    delete ui;
}

void    MainWindow::Connect()
{
    // 通用
    connect(ui->m_pushButton_MinMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_CloseMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);

    // 数据库测试
    connect(ui->m_pushButton_DB_Init, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_DB_Insert, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_DB_Delete, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_DB_Update, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_DB_Query, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_DB_Query_RecordSet, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);

    //
    connect(&m_varTimer, &QTimer::timeout, this, &MainWindow::OnTimer);
    m_varTimer.setTimerType(Qt::PreciseTimer);
    m_varTimer.start(40);
}

void    MainWindow::Disconnect()
{
    // 通用
    disconnect(ui->m_pushButton_MinMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    disconnect(ui->m_pushButton_CloseMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);

    // 数据库测试
    disconnect(ui->m_pushButton_DB_Init, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    disconnect(ui->m_pushButton_DB_Insert, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    disconnect(ui->m_pushButton_DB_Delete, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    disconnect(ui->m_pushButton_DB_Update, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    disconnect(ui->m_pushButton_DB_Query, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);\
    disconnect(ui->m_pushButton_DB_Query_RecordSet, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);

    //
    m_varTimer.stop();
    disconnect(&m_varTimer, &QTimer::timeout, this, &MainWindow::OnTimer);
}

void    MainWindow::OnButtonClicked()
{
    // 最小化
    if(sender() == ui->m_pushButton_MinMenu)
    {
        this->showMinimized();
    }

    // 退出程序
    if(sender() == ui->m_pushButton_CloseMenu)
    {
        qApp->exit();
    }

    if(sender() == ui->m_pushButton_DB_Init)
    {
        //
        QString strSQL = "";

        // 删除表
        strSQL = "drop table if exists TestTable;";
        m_pGdSQLite3->Execute(strSQL);

        // 创建表
        strSQL = "create table TestTable(ID integer, msg text);";
        m_pGdSQLite3->Execute(strSQL);

        // 初始化数据
        for(int i = 0; i < 10; i++)
        {
            strSQL = QString("insert into TestTable(ID, msg) values (%1,\"msg %2\");")
                    .arg(i+1)
                    .arg(i+1);
            m_pGdSQLite3->Execute(strSQL);
        }

        m_nInsertIndex = 11;

        int jj = 0;
    }

    if(sender() == ui->m_pushButton_DB_Insert)
    {
        //
        QString strSQL = QString("insert into TestTable(ID, msg) values (%1,\"msg%2\");")
                .arg(m_nInsertIndex)
                .arg(m_nInsertIndex);
        m_pGdSQLite3->Execute(strSQL);

        m_nInsertIndex++;
    }

    if(sender() == ui->m_pushButton_DB_Delete)
    {
        //
        uint32_t nID = ui->m_lineEdit_ID_Delete->text().toUInt();

        QString strSQL = QString("delete from TestTable where ID=%1;")
                .arg(nID);
        m_pGdSQLite3->Execute(strSQL);
    }

    if(sender() == ui->m_pushButton_DB_Update)
    {
        //
        uint32_t nID = ui->m_lineEdit_ID_Update->text().toUInt();
        QString strMsg = ui->m_lineEdit_Msg_Update->text();

        QString strSQL = QString("update TestTable set msg=\"%1\" where ID=%2;")
                .arg(strMsg)
                .arg(nID);
        m_pGdSQLite3->Execute(strSQL);
    }

    if(sender() == ui->m_pushButton_DB_Query)
    {
        //
        QString strResult = "";

        m_pGdSQLite3->QueryAllTableInfo(strResult, "TestTable");

        ui->m_textEdit_Result->setText(strResult);
    }

    if(sender() == ui->m_pushButton_DB_Query_RecordSet)
    {
        GdSQLite3RecordSet rs(m_pGdSQLite3);
        //
        QString strSQL = "select * from TestTable;";
        QString strResult = "";

        rs.Open(strSQL);

        while(rs.Next() )
        {
            QVariant varVal;

            strResult += "ID: ";

            // ID
            rs.GetValue(varVal, 0, GdSQLite3RecordSet::eDT_Int);

            strResult += QString::number(varVal.toUInt() );

            strResult += " $$ msg: ";

            // msg
            rs.GetValue(varVal, 1, GdSQLite3RecordSet::eDT_Blob);

            strResult += varVal.toString();

            strResult += "\r\n\r\n";

            int jj = 0;
        }

        rs.Close();

        ui->m_textEdit_Result->setText(strResult);
    }
}

void MainWindow::InitStyle()
{
    m_bMousePressed = false;

    //安装事件监听器,让标题栏识别鼠标双击
    ui->lblTitle->installEventFilter(this);
    /*
    this->setWindowFlags(/*Qt::FramelessWindowHint |*
                         Qt::WindowTitleHint |
                         Qt::WindowSystemMenuHint);
*/
    FramelessHelper *pHelper = new FramelessHelper(this);
    pHelper->activateOn(this);  //激活当前窗体
    pHelper->setTitleHeight(ui->wgtTitleBar->height());  //设置窗体的标题栏高度

    CommonHelper::SetStyle("blue");//"blue"//"dark"
}

bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
    //if (ui->lblTitle == obj)
    {
        if (event->type() == QEvent::MouseButtonPress)
        {

            QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);

            if (mouseEvent->button() == Qt::LeftButton)
            {
                m_bMousePressed = true;
                m_ptMouse = mouseEvent->globalPos() - pos();
                mouseEvent->accept();
            }
            return true;
        }

        else if (event->type() == QEvent::MouseMove)
        {
            QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);

            if (m_bMousePressed && this->windowState() != Qt::WindowMaximized)
            {
                if (mouseEvent->globalY() <= qApp->desktop()->availableGeometry().bottom())
                {
                    move(mouseEvent->globalPos() - m_ptMouse);
                    mouseEvent->accept();
                }
                else
                {
                    qApp->desktop()->cursor().setPos(
                                qApp->desktop()->cursor().pos().x(),
                                qApp->desktop()->availableGeometry().bottom()
                                );
                }
            }
            return true;
        }

        else if (event->type() == QEvent::MouseButtonRelease)
        {
            QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);

            if (mouseEvent->button() == Qt::LeftButton)
            {
                m_bMousePressed = false;
                mouseEvent->accept();
            }
            return true;
        }
    }
    return QMainWindow::eventFilter(obj, event);
}

void    MainWindow::OnTimer()
{
}

void    MainWindow::ThreadEntry(ThreadRunFunPtr pRunFun, void* pOwner)
{
    MainWindow* pThis = reinterpret_cast<MainWindow*>(pOwner);

    if (NULL == pThis)
    {
        return;
    }

    (pThis->*pRunFun)();
}

void	MainWindow::ThreadFun_CaptureDeviceData()
{
    timeBeginPeriod(1);


    timeEndPeriod(1);
}

bool    MainWindow::StartThread()
{
    StopThread();

    //
    m_bThreadRunning_CaptureDeviceData = true;
    m_ptrThread_CaptureDeviceData = new std::thread(std::bind(&MainWindow::ThreadEntry, &MainWindow::ThreadFun_CaptureDeviceData, (void*)this));

    return true;
}

void    MainWindow::StopThread()
{
    //
    if(m_bThreadRunning_CaptureDeviceData)
    {
        m_bThreadRunning_CaptureDeviceData = false;

        if(nullptr != m_ptrThread_CaptureDeviceData)
        {
            m_ptrThread_CaptureDeviceData->join();

            delete m_ptrThread_CaptureDeviceData;
            m_ptrThread_CaptureDeviceData = nullptr;
        }
    }
}