[嵌入式Linux项目实战开发]基于QT4.8的仓库管理系统实现功能【2019年给力项目】

[嵌入式Linux项目实战开发]基于QT4.8的仓库管理系统实现功能【2019年给力项目】

支持导出 excel 表格
支持查看商品操作日志
支持高精度浮点运算
支持同一商品以不同价格入库
该软件已开源。
因预览版 可执行文件过大，所以上传到csdn
大家有问题，可以加我的QQ1653687969

源码目录结构：

源码目录结构：

部分代码：

 

ContentWidget::ContentWidget(QWidget *parent) :

    QWidget(parent)

{

    sql_x = -1;

    sql_y = -1;

    tab_page = true;

    search_page = false;



    if(!sqlInit(false)){

        QMessageBox message(QMessageBox::NoIcon, "提示", "请先选中一件库存商品");

        message.setIconPixmap(QPixmap(":/img/safe"));

        message.exec();

        return;

    }



    //    configure = new Configure;

    //    configure->readconfigure();



    excelengine = new ExcelEngine;

    QThread* daemon_thread = new QThread;

    excelengine->moveToThread(daemon_thread);

    daemon_thread->start(QThread::IdlePriority);

    //    connect(this, SIGNAL(saveExecl(QMap)),excelengine, SIGNAL(signals_saveExecl(QMap)));

    //    saveExecl(product_table);





    main_widget = new QWidget(this);

    storage_table = new QTableWidget(this);

    product_table = new QTableWidget(this);

    gmpmath = new GmpMath;





    setToolsWidget();



    setProductTab();

    setStorageTab();

    setTabWidget();

    tabShow();

    QPalette palette;



    tools_widget->setAutoFillBackground(true);

    main_widget->setAutoFillBackground(true);

    palette.setColor(QPalette::Background,QColor(155,225,123));



    tools_widget->setPalette(palette);

    tools_widget->setFixedHeight(75);



    main_splitter = new QSplitter(this);



    main_splitter->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    main_splitter->setOrientation(Qt::Vertical);

    main_splitter->setHandleWidth(0);

    main_splitter->setStyleSheet("QSplitter::handle{background:lightgray;}");





    main_splitter->addWidget(tools_widget);

    //    main_splitter->addWidget(left_widget);

    main_splitter->addWidget(main_widget);



    for(int i = 0; icount();i++)

    {

        QSplitterHandle *handle = main_splitter->handle(i);

        handle->setEnabled(false);

    }

    qDebug() << "content_ widget ok";



    QHBoxLayout *main_layout = new QHBoxLayout();

    main_layout->addWidget(main_splitter);

    main_layout->setSpacing(0);

    main_layout->setContentsMargins(0, 0, 0, 0);



    connect(btn_add, SIGNAL(clicked()),this, SLOT(addwidget()));

    connect(btn_minus, SIGNAL(clicked()),this, SLOT(minuswidget()));

    connect(btn_plus, SIGNAL(clicked()),this, SLOT(pluswidget()));

    connect(btn_delete, SIGNAL(clicked()),this, SLOT(sqldelete()));

    connect(btn_cancel, SIGNAL(clicked()),this, SLOT(sqlcancel()));

    connect(btn_outinto, SIGNAL(clicked()),this, SLOT(saveas()));

    setLayout(main_layout);

    //    slotStyleChange(0);

    btnEnable(false);



}

现在跟大家介绍一下软件实现界面:
初始化数据库

 

 

主界面

#include "main_menu.h"

MainMenu::MainMenu(QWidget *widget)
    : QMenu(widget)
{
    this->createActions();
    this->translateActions();
}

void MainMenu::createActions()
{
    //创建菜单项
    action_sqlinit = new QAction(this);
    action_changepasswd = new QAction(this);
    action_sqlinit->setIcon(QIcon("img/safe.png"));

    //添加菜单项
    this->addAction(action_sqlinit);
    this->addAction(action_changepasswd);


    //设置信号连接
    QObject::connect(action_sqlinit, SIGNAL(triggered()), this, SIGNAL(sqlinit_signal()));
    QObject::connect(action_changepasswd, SIGNAL(triggered()), this, SIGNAL(changepasswd_signal()));
}

void MainMenu::translateActions()
{
    action_sqlinit->setText(tr("初始化数据库"));
    action_changepasswd->setText(tr("修改管理员密码"));
}

入库

 

出库

搜索商品

商品操作详情

删除商品

导出excel 表格

 

#include "excelengine.h"

ExcelEngine::ExcelEngine(QObject *parent) :
    QObject(parent)
{
    pExcel     = NULL;
    pWorkbooks = NULL;
    pWorkbook  = NULL;
    pWorksheet = NULL;

    sXlsFile     = "";
    nRowCount    = 0;
    nColumnCount = 0;
    nStartRow    = 0;
    nStartColumn = 0;

    bIsOpen     = false;
    bIsValid    = false;
    bIsANewFile = false;
    bIsSaveAlready = false;

    HRESULT r = OleInitialize(0);
    if (r != S_OK && r != S_FALSE)
    {
        qDebug("Qt: Could not initialize OLE (error %x)", (unsigned int)r);
    }
//    connect(this, SIGNAL(signals_saveExecl(QMap)),this, SLOT(saveExecl(QMap)));
}

ExcelEngine::ExcelEngine(QString xlsFile)
{
    pExcel     = NULL;
    pWorkbooks = NULL;
    pWorkbook  = NULL;
    pWorksheet = NULL;

    sXlsFile     = xlsFile;
    nRowCount    = 0;
    nColumnCount = 0;
    nStartRow    = 0;
    nStartColumn = 0;

    bIsOpen     = false;
    bIsValid    = false;
    bIsANewFile = false;
    bIsSaveAlready = false;

    HRESULT r = OleInitialize(0);
    if (r != S_OK && r != S_FALSE)
    {
        qDebug("Qt: Could not initialize OLE (error %x)", (unsigned int)r);
    }
}


ExcelEngine::~ExcelEngine()
{
    if ( bIsOpen )
    {
        //析构前，先保存数据，然后关闭workbook
        Close();
    }
    OleUninitialize();
}

/**
  *@brief 打开sXlsFile指定的excel报表
  *@return true : 打开成功
  *        false: 打开失败
  */
bool ExcelEngine::Open(UINT nSheet, bool visible)
{

    if ( bIsOpen )
    {
        //return bIsOpen;
        Close();
    }

    nCurrSheet = nSheet;
    bIsVisible = visible;

    if ( NULL == pExcel )
    {
        pExcel = new QAxObject("Excel.Application");
        if ( pExcel )
        {
            bIsValid = true;
        }
        else
        {
            bIsValid = false;
            bIsOpen  = false;
            return bIsOpen;
        }

        pExcel->dynamicCall("SetVisible(bool)", bIsVisible);
    }

    if ( !bIsValid )
    {
        bIsOpen  = false;
        return bIsOpen;
    }

    if ( sXlsFile.isEmpty() )
    {
        bIsOpen  = false;
        return bIsOpen;
    }

    /*如果指向的文件不存在，则需要新建一个*/
    QFile f(sXlsFile);
    if (!f.exists())
    {
        bIsANewFile = true;
    }
    else
    {
        bIsANewFile = false;
    }

    if (!bIsANewFile)
    {
        pWorkbooks = pExcel->querySubObject("WorkBooks"); //获取工作簿
        pWorkbook = pWorkbooks->querySubObject("Open(QString, QVariant)",sXlsFile,QVariant(0)); //打开xls对应的工作簿
    }
    else
    {
        pWorkbooks = pExcel->querySubObject("WorkBooks");     //获取工作簿
        pWorkbooks->dynamicCall("Add");                       //添加一个新的工作薄
        pWorkbook  = pExcel->querySubObject("ActiveWorkBook"); //新建一个xls
    }

    pWorksheet = pWorkbook->querySubObject("WorkSheets(int)", nCurrSheet);//打开第一个sheet

    //至此已打开，开始获取相应属性
    QAxObject *usedrange = pWorksheet->querySubObject("UsedRange");//获取该sheet的使用范围对象
    QAxObject *rows = usedrange->querySubObject("Rows");
    QAxObject *columns = usedrange->querySubObject("Columns");

    //因为excel可以从任意行列填数据而不一定是从0,0开始，因此要获取首行列下标
    nStartRow    = usedrange->property("Row").toInt();    //第一行的起始位置
    nStartColumn = usedrange->property("Column").toInt(); //第一列的起始位置

    nRowCount    = rows->property("Count").toInt();       //获取行数
    nColumnCount = columns->property("Count").toInt();    //获取列数

    bIsOpen  = true;
    return bIsOpen;
}

/**
  *@brief Open()的重载函数
  */
bool ExcelEngine::Open(QString xlsFile, UINT nSheet, bool visible)
{
    sXlsFile = xlsFile;
    nCurrSheet = nSheet;
    bIsVisible = visible;

    return Open(nCurrSheet,bIsVisible);
}

void ExcelEngine::saveExecl(QMap tmp)
{
   if(!Open("test.xls",1,false))
            qDebug() << "open xls error";
    qDebug() << "ExcelEngine::saveExecl";
    if(!SaveDataFrTable(tmp[1])){
        qDebug() << "output execl error";
    }
    this->Close();
    //    if(!excelengine->Open("test.xls",1,false))
    //        qDebug() << "open xls error";
}


/**
  *@brief 保存表格数据，把数据写入文件
  */
void ExcelEngine::Save()
{
    if ( pWorkbook )
    {
        if (bIsSaveAlready)
        {
            return ;
        }
        //        qDebug() << "save as" << sXlsFile;
        //        pWorkbook->dynamicCall("SaveAs (const QString&,int,const QString&,const QString&,bool,bool)",
        //                  sXlsFile,56,QString(""),QString(""),false,false);

        if (!bIsANewFile)
        {
            qDebug() << "Save is new file " << sXlsFile;
            pWorkbook->dynamicCall("Save()");
        }
        else /*如果该文档是新建出来的，则使用另存为COM接口*/
        {
            qDebug() << "save as" << sXlsFile;
            //            pWorkbook->dynamicCall("SaveAs (const QString&)",
            //                                   "d:/code/svn/acanoe_brower/test.xls");

            pWorkbook->dynamicCall("SaveAs (const QString&,int,const QString&,const QString&,bool,bool)",
                                   sXlsFile,56,QString(""),QString(""),false,false);

        }

        bIsSaveAlready = true;
    }
}

/**
  *@brief 关闭前先保存数据，然后关闭当前Excel COM对象，并释放内存
  */
void ExcelEngine::Close()
{
    //关闭前先保存数据
    Save();

    if ( pExcel && pWorkbook )
    {
        pWorkbook->dynamicCall("Close(bool)", true);
        pExcel->dynamicCall("Quit()");

        delete pExcel;
        pExcel = NULL;

        bIsOpen     = false;
        bIsValid    = false;
        bIsANewFile = false;
        bIsSaveAlready = true;
    }
}

/**
  *@brief 把tableWidget中的数据保存到excel中
  *@param tableWidget : 指向GUI中的tablewidget指针
  *@return 保存成功与否 true : 成功
  *                  false: 失败
  */
bool ExcelEngine::SaveDataFrTable(QTableWidget *tableWidget)
{
    if ( NULL == tableWidget )
    {
        return false;
    }
    if ( !bIsOpen )
    {
        return false;
    }

    int tableR = tableWidget->rowCount();
    int tableC = tableWidget->columnCount();

    //获取表头写做第一行
    for (int i=0; ihorizontalHeaderItem(i) != NULL )
        {
            this->SetCellData(1,i+1,tableWidget->horizontalHeaderItem(i)->text());
        }
    }

    //写数据
    for (int i=0; iitem(i,j) != NULL )
            {
                this->SetCellData(i+2,j+1,tableWidget->item(i,j)->text());
            }
        }
    }

    qDebug() << " ExcelEngine::SaveDataFrTable " << sXlsFile;
    //保存
    Save();

    return true;
}

/**
  *@brief 从指定的xls文件中把数据导入到tableWidget中
  *@param tableWidget : 执行要导入到的tablewidget指针
  *@return 导入成功与否 true : 成功
  *                   false: 失败
  */
bool ExcelEngine::ReadDataToTable(QTableWidget *tableWidget)
{
    if ( NULL == tableWidget )
    {
        return false;
    }

    //先把table的内容清空
    int tableColumn = tableWidget->columnCount();
    tableWidget->clear();
    for (int n=0; nremoveColumn(0);
    }

    int rowcnt    = nStartRow + nRowCount;
    int columncnt = nStartColumn + nColumnCount;

    //获取excel中的第一行数据作为表头
    QStringList headerList;
    for (int n = nStartColumn; nquerySubObject("Cells(int,int)",nStartRow, n);
        if ( cell )
        {
            headerList<dynamicCall("Value2()").toString();
        }
    }

    //重新创建表头
    tableWidget->setColumnCount(nColumnCount);
    tableWidget->setHorizontalHeaderLabels(headerList);


    //插入新数据
    for (int i = nStartRow+1, r = 0; i < rowcnt; i++, r++ )  //行
    {
        tableWidget->insertRow(r); //插入新行
        for (int j = nStartColumn, c = 0; j < columncnt; j++, c++ )  //列
        {
            QAxObject * cell = pWorksheet->querySubObject("Cells(int,int)", i, j );//获取单元格

            //在r新行中添加子项数据
            if ( cell )
            {
                tableWidget->setItem(r,c,new QTableWidgetItem(cell->dynamicCall("Value2()").toString()));
            }
        }
    }

    return true;
}

/**
  *@brief 获取指定单元格的数据
  *@param row : 单元格的行号
  *@param column : 单元格的列号
  *@return [row,column]单元格对应的数据
  */
QVariant ExcelEngine::GetCellData(UINT row, UINT column)
{
    QVariant data;

    QAxObject *cell = pWorksheet->querySubObject("Cells(int,int)",row,column);//获取单元格对象
    if ( cell )
    {
        data = cell->dynamicCall("Value2()");
    }

    return data;
}

/**
  *@brief 修改指定单元格的数据
  *@param row : 单元格的行号
  *@param column : 单元格指定的列号
  *@param data : 单元格要修改为的新数据
  *@return 修改是否成功 true : 成功
  *                   false: 失败
  */
bool ExcelEngine::SetCellData(UINT row, UINT column, QVariant data)
{
    bool op = false;

    QAxObject *cell = pWorksheet->querySubObject("Cells(int,int)",row,column);//获取单元格对象
    if ( cell )
    {
        QString strData = data.toString(); //excel 居然只能插入字符串和整型，浮点型无法插入
        cell->dynamicCall("SetValue(const QVariant&)",strData); //修改单元格的数据
        op = true;
    }
    else
    {
        op = false;
    }

    return op;
}

/**
  *@brief 清空除报表之外的数据
  */
void ExcelEngine::Clear()
{
    sXlsFile     = "";
    nRowCount    = 0;
    nColumnCount = 0;
    nStartRow    = 0;
    nStartColumn = 0;
}

/**
  *@brief 判断excel是否已被打开
  *@return true : 已打开
  *        false: 未打开
  */
bool ExcelEngine::IsOpen()
{
    return bIsOpen;
}

/**
  *@brief 判断excel COM对象是否调用成功，excel是否可用
  *@return true : 可用
  *        false: 不可用
  */
bool ExcelEngine::IsValid()
{
    return bIsValid;
}

/**
  *@brief 获取excel的行数
  */
UINT ExcelEngine::GetRowCount()const
{
    return nRowCount;
}

/**
  *@brief 获取excel的列数
  */
UINT ExcelEngine::GetColumnCount()const
{
    return nColumnCount;
}

修改密码

 

 

 

 

 

#include 
#include 
#include 


#include "about_us.h"

AboutUsDialog::AboutUsDialog(QWidget *parent,int index_tmp,QString name_tmp)
    :QDialog(parent)
{

    this->resize(520, 290);
    index = index_tmp;
    name = name_tmp;
    qDebug() << index << name;

    QPalette palette;
    this->setAutoFillBackground(true);
    palette.setColor(QPalette::Background,QColor(155,225,123));
    this->setPalette(palette);


    //初始化为未按下鼠标左键
    mouse_press = false;

    //设置标题栏隐藏
    this->setWindowFlags(Qt::FramelessWindowHint | Qt::Dialog);

    title_label = new QLabel();
    title_icon_label = new QLabel();
    title_info_label = new QLabel();
    info_label = new QLabel();
    version_label = new QLabel();
    mummy_label = new QLabel();
    copyright_label = new QLabel();
    icon_label = new QLabel();
    close_button = new PushButton();
    ok_button = new QPushButton();

    QPixmap title_pixmap(":/img/safe");
    title_icon_label->setPixmap(title_pixmap);
    title_icon_label->setFixedSize(16, 16);
    title_icon_label->setScaledContents(true);

    close_button->loadPixmap(":/sysButton/close");

    title_label->setFixedHeight(30);
    ok_button->setFixedSize(75, 25);
    QPixmap pixmap(":/img/360safe");
    icon_label->setPixmap(pixmap);
    icon_label->setFixedSize(pixmap.size());

    QFont title_info_font("微软雅黑", 20, QFont::Bold, false);


    QHBoxLayout *input1 = new QHBoxLayout();
    QHBoxLayout *input2 = new QHBoxLayout();
    QHBoxLayout *input3 = new QHBoxLayout();
    switch(index_tmp){
    case 1:
    {
        QLabel *L_name = new QLabel(tr("商品名 "));
        E_name = new QLineEdit;

        QLabel *L_Price = new QLabel(tr("商品价格"));
        E_Price = new QLineEdit;

        QLabel *L_amount = new QLabel(tr("数量   "));
        E_amount = new QLineEdit;

        QLabel *L_person = new QLabel(tr("管理员  "));
        E_person = new QLineEdit;

        QLabel *L_sign = new QLabel(tr("签字人 "));
        E_sign = new QLineEdit;

        QLabel *L_remark = new QLabel(tr("备注   "));
        E_remark = new QLineEdit;



        input1->addWidget(L_name);
        input1->addWidget(E_name);
        input1->addWidget(L_Price);
        input1->addWidget(E_Price);
        input1->setSpacing(10);
        input1->setContentsMargins(10, 0, 10, 0);


        input2->addWidget(L_amount);
        input2->addWidget(E_amount);
        input2->addWidget(L_person);
        input2->addWidget(E_person);
        input2->setSpacing(10);
        input2->setContentsMargins(10, 0, 10, 0);

        input3->addWidget(L_sign);
        input3->addWidget(E_sign);
        input3->addWidget(L_remark);
        input3->addWidget(E_remark);
        input3->setSpacing(10);
        input3->setContentsMargins(10, 0, 10, 0);
        break;
    }
    case 2:
    {
        QLabel *L_name = new QLabel(QString("商品 ") + name + " 出库");
        L_name ->setFont(title_info_font);
        E_name = new QLineEdit;

        //        QLabel *L_Price = new QLabel(tr("商品价格"));
        //        E_Price = new QLineEdit;

        QLabel *L_amount = new QLabel(tr("数量   "));
        E_amount = new QLineEdit;

        QLabel *L_person = new QLabel(tr("管理员  "));
        E_person = new QLineEdit;

        QLabel *L_sign = new QLabel(tr("签字人 "));
        E_sign = new QLineEdit;

        QLabel *L_remark = new QLabel(tr("备注   "));
        E_remark = new QLineEdit;

        input1->addWidget(L_name);
        //        input1->addWidget(E_name);
        //        input1->addWidget(L_Price);
        //        input1->addWidget(E_Price);
        input1->setSpacing(10);
        input1->setContentsMargins(10, 0, 10, 0);

        input2->addWidget(L_amount);
        input2->addWidget(E_amount);
        input2->addWidget(L_person);
        input2->addWidget(E_person);
        input2->setSpacing(10);
        input2->setContentsMargins(10, 0, 10, 0);


        input3->addWidget(L_sign);
        input3->addWidget(E_sign);
        input3->addWidget(L_remark);
        input3->addWidget(E_remark);
        input3->setSpacing(10);
        input3->setContentsMargins(10, 0, 10, 0);
        break;
    }
    case 3:
    {
        QLabel *L_name = new QLabel(QString("商品 ") + name + " 入库");
        L_name ->setFont(title_info_font);
        E_name = new QLineEdit;

        QSpacerItem *horizontalSpacer = new QSpacerItem(10, 10, QSizePolicy::Expanding, QSizePolicy::Minimum);
        QLabel *L_Price = new QLabel(tr("入库价格"));
        E_Price = new QLineEdit;

        QLabel *L_amount = new QLabel(tr("数量   "));
        E_amount = new QLineEdit;

        QLabel *L_person = new QLabel(tr("管理员  "));
        E_person = new QLineEdit;

        QLabel *L_sign = new QLabel(tr("签字人 "));
        E_sign = new QLineEdit;

        QLabel *L_remark = new QLabel(tr("备注   "));
        E_remark = new QLineEdit;




        input1->addWidget(L_name);
        //        input1->addWidget(E_name);
        input1->addItem(horizontalSpacer);
        input1->addWidget(L_Price);
        input1->addWidget(E_Price);
        input1->setSpacing(10);
        input1->setContentsMargins(10, 0, 10, 0);


        input2->addWidget(L_amount);
        input2->addWidget(E_amount);
        input2->addWidget(L_person);
        input2->addWidget(E_person);
        input2->setSpacing(10);
        input2->setContentsMargins(10, 0, 10, 0);

        input3->addWidget(L_sign);
        input3->addWidget(E_sign);
        input3->addWidget(L_remark);
        input3->addWidget(E_remark);
        input3->setSpacing(10);
        input3->setContentsMargins(10, 0, 10, 0);
        break;
    }
    case 4:
    {
        QLabel *L_name = new QLabel();
        L_name->setText(name);
        L_name ->setFont(title_info_font);

        input2->addWidget(L_name);
        input2->setSpacing(10);
        input2->setContentsMargins(10, 0, 10, 0);
        break;
    }
    case 5:
    {
        QLabel *L_name = new QLabel();
        L_name->setText("请输入管理员密码:");
        L_name ->setFont(title_info_font);
        E_Price = new QLineEdit;

        input2->addWidget(L_name);
        input2->addWidget(E_Price);
        input2->setSpacing(10);
        input2->setContentsMargins(10, 0, 10, 0);
        break;
    }
    case 6:
    {
        QLabel *L_name = new QLabel(tr("现在密码 "));
        E_name = new QLineEdit;

        QLabel *L_Price = new QLabel(tr("修改为 "));
        E_Price = new QLineEdit;

        QLabel *L_amount = new QLabel(tr("再次确认"));
        E_amount = new QLineEdit;

        input1->addWidget(L_name);
        input1->addWidget(E_name);
        input1->setSpacing(10);
        input1->setContentsMargins(10, 0, 10, 0);


        input2->addWidget(L_Price);
        input2->addWidget(E_Price );
        input2->setSpacing(10);
        input2->setContentsMargins(10, 0, 10, 0);

        input3->addWidget(L_amount);
        input3->addWidget(E_amount);
        input3->setSpacing(10);
        input3->setContentsMargins(10, 0, 10, 0);
        break;
    }


    default:
    {
        return;
    }
    }
    QHBoxLayout *title_layout = new QHBoxLayout();
    title_layout->addWidget(title_icon_label, 0, Qt::AlignVCenter);
    title_layout->addWidget(title_label, 0, Qt::AlignVCenter);
    title_layout->addStretch();
    title_layout->addWidget(close_button, 0, Qt::AlignTop);
    title_layout->setSpacing(5);
    title_layout->setContentsMargins(10, 0, 5, 0);



    QHBoxLayout *bottom_layout = new QHBoxLayout();
    bottom_layout->addStretch();
    bottom_layout->addWidget(ok_button);
    bottom_layout->setSpacing(0);
    bottom_layout->setContentsMargins(0, 0, 30, 20);

    QVBoxLayout *main_layout = new QVBoxLayout();
    main_layout->addLayout(title_layout);
    main_layout->addStretch();      ///  添加格挡
    main_layout->addLayout(input1);
    main_layout->addStretch();
    main_layout->addLayout(input2);
    main_layout->addStretch();
    main_layout->addLayout(input3);
    main_layout->addStretch();
    main_layout->addLayout(bottom_layout);
    main_layout->setSpacing(0);
    main_layout->setContentsMargins(0, 0, 0, 0);

    setLayout(main_layout);

    title_label->setStyleSheet("color:white;");
    copyright_label->setStyleSheet("color:gray;");
    title_info_label->setStyleSheet("color:rgb(30,170,60);");
    info_label->setStyleSheet("color:rgb(30,170,60);");
    ok_button->setStyleSheet("QPushButton{border:1px solid lightgray;background:rgb(230,230,230);}" "QPushButton:hover{border-color:green; background:transparent;}");



    QFont info_font = info_label->font();
    info_font.setBold(true);
    info_label->setFont(info_font);
    ok_button->setText(tr("OK"));

    connect(ok_button, SIGNAL(clicked()), this, SLOT(getinput()));
    connect(close_button, SIGNAL(clicked()), this, SLOT(hide()));
}

void AboutUsDialog::getinput()
{
    QStringList tmp;
    switch(index){
    case 1:
    {
        if(E_amount->text().toInt() == 0 ){
            E_amount->setText("数量必须为大于0的整数");
            return;
        }
        if(E_Price->text().toFloat() <= 0 ){
            E_Price->setText("单品价格必须是数字可以含小数");
            return;
        }
        tmp.append(E_name->text());
        tmp.append(E_Price->text());
        tmp.append(E_amount->text());
        tmp.append(E_person->text());
        tmp.append(E_sign->text());
        tmp.append(E_remark->text());

        emit setinput(tmp,index);
        break;
    }
    case 2:
        if(E_amount->text().toInt() == 0 ){
            E_amount->setText("数量必须为大于0的整数");
            return;
        }
        tmp.append(name);
        tmp.append(E_amount->text());
        tmp.append(E_person->text());
        tmp.append(E_sign->text());
        tmp.append(E_remark->text());
        emit setinput(tmp,index);
        break;
    case 3:
        if(E_amount->text().toInt() == 0 ){
            E_amount->setText("数量必须为大于0的整数");
            return;
        }
        if(E_Price->text().toFloat() <= 0 ){
            E_Price->setText("单品价格必须是数字可以含小数");
            return;
        }
        tmp.append(name);
        tmp.append(E_Price->text());
        tmp.append(E_amount->text());
        tmp.append(E_person->text());
        tmp.append(E_sign->text());
        tmp.append(E_remark->text());
        emit setinput(tmp,index);
        break;
    case 5:
    {
        //        QSqlQuery query;
        //        query.exec("create table sql_users_table (id integer primary key,user varchar(15),passwd varchar(100)");

        int i = 0;
        QSqlQuery querylist;
        //        qDebug() <<	querylist.exec(QString("select * from sql_users_table order by id desc"));
        qDebug() <<	querylist.exec(QString("select * from sql_users_table where user_name=\"admin\"" ));
        while(querylist.next())
        {
            i++;
            if(querylist.value(2).toString() == E_Price->text()){
                emit setinput(tmp,index);

            }else {
                E_Price->setText("密码错误");
                return;
            }
            //            tmp.v_id = querylist.value(0).toString();
            //            tmp.name = querylist.value(1).toString();

            //            tmp.state = querylist.value(2).toString();
            //            tmp.amount = querylist.value(3).toString();
            //            tmp.price = querylist.value(4).toString();
            //            tmp.total_price = querylist.value(5).toString();
            //            tmp.controller = querylist.value(6).toString();
            //            tmp.remark = querylist.value(7).toString();
            //            tmp.time = querylist.value(8).toString();
        }
        if(i == 0){
            E_Price->setText("密码错误");
            return;
        }
        break;
    }
    case 6:
    {
        int i = 0;
        QSqlQuery querylist;
        //        qDebug() <<	querylist.exec(QString("select * from sql_users_table order by id desc"));
        qDebug() <<	querylist.exec(QString("select * from sql_users_table where user_name=\"admin\"" ));
        while(querylist.next())
        {
            i++;
            if(querylist.value(2).toString() == E_name->text()){
                if(E_Price->text() == E_amount->text()){
                    if(querylist.exec(QString("UPDATE sql_users_table SET user_passwd='" + E_Price->text() + "' WHERE user_name='admin'")))
                    {
                        qDebug() << "change passwd is crrect";
                    }else{
                        E_Price->setText("密码数据更新失败");
                        qDebug() << "change passwd is error";
                        return;
                    }
                    emit setinput(tmp,index);
                }else {
                    E_amount->setText("输入不匹配，请重新输入");
                    return;
                }

            }else {
                E_name->setText("密码错误");
                return;
            }
            //            tmp.v_id = querylist.value(0).toString();
            //            tmp.name = querylist.value(1).toString();

            //            tmp.state = querylist.value(2).toString();
            //            tmp.amount = querylist.value(3).toString();
            //            tmp.price = querylist.value(4).toString();
            //            tmp.total_price = querylist.value(5).toString();
            //            tmp.controller = querylist.value(6).toString();
            //            tmp.remark = querylist.value(7).toString();
            //            tmp.time = querylist.value(8).toString();
        }
        break;
    }
    default:
        break;
    }

    this->close();
}

void AboutUsDialog::translateLanguage()
{


}

AboutUsDialog::~AboutUsDialog()
{

}

void AboutUsDialog::paintEvent(QPaintEvent *)
{
}

void AboutUsDialog::mousePressEvent( QMouseEvent * event )
{
    //只能是鼠标左键移动和改变大小
    if(event->button() == Qt::LeftButton)
    {
        mouse_press = true;
    }

    //窗口移动距离
    move_point = event->globalPos() - pos();
}

void AboutUsDialog::mouseReleaseEvent(QMouseEvent *)
{
    mouse_press = false;
}

void AboutUsDialog::mouseMoveEvent(QMouseEvent *event)
{
    //移动窗口
    if(mouse_press)
    {
        QPoint move_pos = event->globalPos();
        move(move_pos - move_point);
    }
}

 

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  欢迎广大学子交流嵌入式和安卓开发

  aiku老师 微信号  ：aiku868

   微信公众平台：aiku嵌入式视频教程创科之龙

   aiku老师QQ：1653687969

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aiku老师 微信号欢迎一起交流！（有任何问题都可以问我，随时解答问题。）

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代码下载网盘：（免费下载学习）

第一期视频教程

链接:https://pan.baidu.com/s/1YAnAQVaIlnc2k1pkKzCCBg 密码:4gu6
第二期视频教程
接:https://pan.baidu.com/s/1QoyABxf6J1o6mtA8hjaa3Q 密码:7z01
第三期视频教程
链接:https://pan.baidu.com/s/1Jj6jqBQZC0CABW1kOqZU6A 密码:ox0l

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