//將表格資料寫入檔案
void DiagramTableItem::saveTable()
{
    QString fileName = QFileDialog::getSaveFileName(0,tr("儲存檔案"),
                                                tr("/root/Projects/product/bin/config/未命名.xls"),
                                                tr("file(*.txt *.xls);;Allfile(*.*)"));
    if(!fileName.isEmpty())
    {
        //將表格資料寫入檔案
        if(QFileInfo(fileName).suffix().isEmpty())
        {
            fileName.append(".xls");
        }
        QFile file;
        file.setFileName(fileName);
        //開啟檔案
        if(!file.open(QIODevice::WriteOnly | QIODevice::Text))
        {
            QMessageBox msg;
            msg.setText("開啟檔案失敗!");
            msg.exec();
        }
        else
        {
            qDebug("open file success:::");
            QTextStream out(&file);
            int rowCount = m_tablewidget->rowCount();
            int colCount = m_tablewidget->columnCount();
            //將表頭寫入檔案
            qDebug()<<"row count:::"<<rowCount<<"col count:::"<<colCount;
            for(int i = 0; i < colCount; i++)
            {
                QString rowHeaderString = m_tablewidget->horizontalHeaderItem(i)->text();
                out << rowHeaderString << "\t";
            }
            out << "\n";
            for(int j = 0; j < rowCount; j++)
            {
                QString colHeaderString = m_tablewidget->verticalHeaderItem(j)->text();
                out << colHeaderString << "\t";
            }
            out << "\n";
            qDebug("saveTable start:::");
            //讀取單元格的資料並寫入檔案
            qDebug()<<"row count:::"<<rowCount<<"col count:::"<<colCount;
            for(int row = 0; row < rowCount; row++)
            {
                for(int col = 0; col < colCount; col++)
                {
                    QString text = m_tablewidget->item(row,col)->text();
                    qDebug()<<"text:::"<<text;
                    if(text.isEmpty())
                    {
                        out << "null" << "\t";
                    }
                    else
                    {
                        out << text << "\t";
                    }
                }
                out << "\n";       //linux下換行符是'\n'
            }
            out.flush();
            qDebug("saveTable end:::");
            file.close();       //關閉檔案
            QMessageBox::information(0,tr("提示"),tr("匯出成功!"));
        }
    }
    else
    {
        QMessageBox::warning(0,tr("警告"),tr("檔名未指定!"),QMessageBox::Ok);
    }
}
 
//將檔案資料匯入表格
void DiagramTableItem::importTable()
{
    QString fileName = QFileDialog::getOpenFileName(0, tr("匯入檔案"),
                                                tr("/root/Projects/product/bin/config"),
                                                tr("file(*.txt *.xls);;Allfile(*.*)"));
    if(!fileName.isEmpty())
    {
        QFile file;
        file.setFileName(fileName);
        //開啟檔案
        if(!file.open(QIODevice::ReadOnly | QIODevice::Text))
        {
            QMessageBox msg;
            msg.setText("開啟檔案失敗!");
            msg.exec();
        }
        else
        {
            if(!file.size())
            {
                QMessageBox::warning(0,tr("警告"),tr("檔案大小為空!"),QMessageBox::Ok);
            }
            else
            {
                //將檔案資料匯入表格
                int r_count = 0;        //統計檔案的行數
                QStringList textList;   //記錄檔案中每一行的資料
                QTextStream in(&file);
                while (!in.atEnd())
                {
                    QString line = in.readLine();
                    textList.append(line);          //儲存檔案的資料
                    r_count++;                      //記錄檔案的行數 前兩行為表頭
                }
                file.close();       //關閉檔案
                if(!textList.isEmpty())
                {
                    QStringList listColHeader = textList.at(1).split("\t");
                    QStringList listRowHeader = textList.at(0).split("\t");
                    int c_count = listRowHeader.count();
                    m_tablewidget->clear();
                    m_tablewidget->setRowCount(r_count-2);      //前兩行是行列表頭
                    m_tablewidget->setColumnCount(c_count-1);   //最後一行是“\t"
                    m_tablewidget->setHorizontalHeaderLabels(listRowHeader);
                    m_tablewidget->setVerticalHeaderLabels(listColHeader);
                    qDebug()<<"start importTable row count:::"<<r_count<<"col count:::"<<c_count;
                    for(int row = 2; row < r_count; row++)
                    {
                        QStringList tmpList;
                        tmpList = textList.at(row).split("\t");
                        for(int col = 0; col < c_count; col++)
                        {
                            QTableWidgetItem *item = new QTableWidgetItem(tmpList.at(col));
                            m_tablewidget->setItem(row-2, col, item);
                        }
                    }
                    QMessageBox::information(0,tr("提示"),tr("匯入成功!"));
                }
            }
        }
    }
    else
    {
        QMessageBox::warning(0,tr("警告"),tr("檔名未指定!"),QMessageBox::Ok);
    }
}