using System;
using System.Data;
using System.Drawing.Printing;
using System.Runtime.InteropServices;
using gregn6Lib;
using HL_FristAidPlatform_Public;

namespace HL_FristAidPlatform_Print
{
    /// <summary>
    /// Grid++ Report报表打印
    /// </summary>
    public class PrintByGridpp
    {
        /// <summary>
        /// 报表
        /// </summary>
        GridppReport Report = new GridppReport();

        /// <summary>
        /// 报表数据源
        /// </summary>
        DataTable ReportDT = new DataTable();

        string PDFFileName;

        /// <summary>
        /// 设置默认打印机
        /// </summary>
        /// <param name="Name"></param>
        /// <returns></returns>
        [DllImport("winspool.drv")]
        public static extern bool SetDefaultPrinter(String Name); //调用win api将指定名称的打印机设置为默认打印机

        /// <summary>
        /// 获取默认打印机
        /// </summary>
        /// <returns></returns>
        public static string GetDefaultPrinter()
        {
            PrintDocument print = new PrintDocument();
            string defaultName = print.PrinterSettings.PrinterName;//默认打印机名
            return defaultName;
        }

        #region Grid++ Report报表打印
        /// <summary>
        /// 打印条形码
        /// </summary>
        /// <param name="_barCodeDT">条形码数据源</param>
        /// <param name="_printerName">打印机名称</param>
        /// <param name="_rptName">报表文件名称</param>
        /// <param name="_isPreview">是否直接打印</param>
        public string PrintReport(DataTable _barCodeDT, string _printerName, string _rptName, bool _isPreview)
        {
            string returnmsg = "";
            if (_barCodeDT.Rows.Count > 0)
            {
                ReportDT = _barCodeDT;
                //载入报表模板文件，必须保证 Grid++Report 的安装目录在‘C:\Program Files\Grid++Report 3’下，
                //关于动态设置报表路径与数据绑定参数请参考其它例子程序
                Report.LoadFromFile(AppDomain.CurrentDomain.BaseDirectory + "report\\" + _rptName);
                //加载数据源
                Report.FetchRecord += new _IGridppReportEvents_FetchRecordEventHandler(ReportFetchRecord);
                if (string.IsNullOrEmpty(_printerName))
                {
                    _printerName = GetDefaultPrinter();
                }
                Report.Printer.PrinterName = _printerName;
                if (_isPreview)
                {
                    Report.Print(true);
                }
                else
                {
                    Report.PrintPreview(false);
                }
            }
            else
            {
                returnmsg = "报表数据源传输错误！";
            }
            return returnmsg;
        }

        /// <summary>
        /// 打印PDF
        /// </summary>
        /// <param name="_barCodeDT"></param>
        /// <param name="fileName"></param>
        /// <param name="_rptName"></param>
        /// <param name="GUID"></param>
        /// <returns></returns>
        public bool PrintReportToPDF(DataTable _barCodeDT, string fileName, string _rptName, string path, string PGUID)
        {
            if (_barCodeDT.Rows.Count > 0)
            {
                ReportDT = _barCodeDT;
                //载入报表模板文件，必须保证 Grid++Report 的安装目录在‘C:\Program Files\Grid++Report 3’下，
                //关于动态设置报表路径与数据绑定参数请参考其它例子程序
                Report.LoadFromFile(AppDomain.CurrentDomain.BaseDirectory + "report\\" + _rptName);
                //Report.ExportBegin += new _IGridppReportEvents_ExportBeginEventHandler(ReportExportBegin);
                //加载数据源
                Report.FetchRecord += new _IGridppReportEvents_FetchRecordEventHandler(ReportFetchRecord);
                GRExportType ExportType = GRExportType.gretPDF;
                //直接调用ExportDirect方法执行导出任务
                //Report.ExportDirect(ExportType, fileName, false, true);
                //GridReportHelper.FillRecordToReport(Report, ReportDT);
                PDFFileName = path + fileName;
                string FileName = ExportInfo.GetExportFileName(PDFFileName);
                //直接调用ExportDirect方法执行导出任务
                Report.ExportDirect(ExportType, FileName, false, true);
                PublicClass.UploadFile(FileName, PGUID);
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 填充数据源
        /// </summary>
        private void ReportFetchRecord()
        {
            GridppReportUtility.FillRecordToReport(Report, ReportDT);
        }

        void ReportExportBegin(IGRExportOption Sender)
        {
            //ExportBegin 事件在将报表导出之前会触发到，无论是调用 ExportDirect 与 Export 方法，
            //还是从打印预览窗口等地方执行导出，都会触发到 ExportBegin 事件。
            //通常在 ExportBegin 事件中设置导出选项参数，改变默认导出行为

            Sender.AbortOpenFile = true;  //导出后不用关联程序打开导出文件，如导出Excel文件之后不用Excel打开
            Sender.AbortShowOptionDlg = true;  //导出之前不显示导出选项设置对话框

            //指定导出文件的完整路径与文件名称
            string FileName = ExportInfo.GetExportFileName(PDFFileName);
            Sender.FileName = FileName; //"d:\\export\\my.dat";

            //根据导出类型设置其特有的选项参数，有关选项参数的具体信息清参考帮助文档。
            //IGRExportOption是导出选项的基类，其它具体导出选项的接口名称都以IGRE2为前缀
            bool OnlyExportDetailGrid = false;//
            bool SupressEmptyLines = false;//压缩空白行
            switch (Sender.ExportType)
            {
                case GRExportType.gretXLS:
                    Sender.AsE2XLSOption.OnlyExportDetailGrid = OnlyExportDetailGrid;
                    Sender.AsE2XLSOption.SupressEmptyLines = SupressEmptyLines;

                    Sender.AsE2XLSOption.ExportPageHeaderFooter = false;
                    Sender.AsE2XLSOption.SameAsPrint = false;
                    Sender.AsE2XLSOption.ExportPageBreak = false;
                    break;
                case GRExportType.gretRTF:
                    Sender.AsE2RTFOption.OnlyExportDetailGrid = OnlyExportDetailGrid;
                    Sender.AsE2RTFOption.SupressEmptyLines = SupressEmptyLines;
                    break;
                case GRExportType.gretPDF:
                    Sender.AsE2PDFOption.Author = "My Author";
                    Sender.AsE2PDFOption.Subject = "My Subject";
                    break;
                case GRExportType.gretHTM:
                    Sender.AsE2HTMOption.OnlyExportDetailGrid = OnlyExportDetailGrid;
                    Sender.AsE2HTMOption.SupressEmptyLines = SupressEmptyLines;
                    break;
                case GRExportType.gretIMG:
                    Sender.AsE2IMGOption.DPI = 300;
                    Sender.AsE2IMGOption.ImageType = GRExportImageType.greitPNG;
                    break;
                case GRExportType.gretTXT:
                    Sender.AsE2TXTOption.OnlyExportDetailGrid = OnlyExportDetailGrid;
                    Sender.AsE2TXTOption.SupressEmptyLines = SupressEmptyLines;
                    break;
                default:
                    Sender.AsE2CSVOption.OnlyExportDetailGrid = OnlyExportDetailGrid;
                    Sender.AsE2CSVOption.SupressEmptyLines = SupressEmptyLines;
                    break;
            }
        }
        #endregion
    }
}