using NPOI.OpenXmlFormats.Wordprocessing;
using NPOI.XWPF.UserModel;
using System;
using System.Collections.Generic;
using System.Data;
using System.Web;

namespace FangYar.Common
{
    /// <summary>
    /// NPOIWordHelper 的摘要说明
    /// </summary>
    public class NPOIWordHelper
    {
         
        /// <summary>
        /// 导出word
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public static void ExportByWeb(DataTable dtSource, string HeaderText, Dictionary<string, string> cellHeard, string filename)
        {
            //创建document对象
            XWPFDocument doc = new XWPFDocument();
            //创建段落对象
            XWPFParagraph p1 = doc.CreateParagraph();
            p1.Alignment = ParagraphAlignment.CENTER;//字体居中
           
            XWPFRun runTitle = p1.CreateRun();
            runTitle.IsBold = true;
            runTitle.SetText("" + HeaderText);
            runTitle.FontSize = 24;
            runTitle.SetFontFamily("宋体", FontCharRange.None);//设置雅黑字体

            //XWPFParagraph p2 = doc.CreateParagraph();
            //XWPFRun run1 = p2.CreateRun();
            //run1.SetText(" 军检项目号：");
            //run1.FontSize = 12;
            //run1.SetFontFamily("华文楷体", FontCharRange.None);//设置雅黑字体
 

            #region 检验要素列表部分(数据库读取循环显示)

            /* 打印1页:小于8行数据,创建9行；
             * 打印2页:大于8小于26行数据，创建27行。增加18
             * 打印3页:大于26小于44行数据，创建45行。增加18
             */
            int columns = dtSource.Columns.Count;
            int rows = dtSource.Rows.Count + 1;
            XWPFTable tableContent = doc.CreateTable(rows, columns);
            tableContent.Width = 1000 * columns;
            tableContent.Width = 1000 * 5;
            foreach (DataColumn column in dtSource.Columns)
            {
                string ColumnName = column.ColumnName;
                tableContent.SetColumnWidth(column.Ordinal, 1000);/* 设置列宽 */
                try
                {
                    if (cellHeard != null && cellHeard[ColumnName] != "")
                    {

                        ColumnName = cellHeard[ColumnName];
                    }
                }
                catch { }
                tableContent.GetRow(0).GetCell(column.Ordinal).SetParagraph(SetCellText(doc, tableContent, ColumnName));
            }
            for (int i = 0; i < dtSource.Rows.Count; i++)
            {
                for (int n = 0; n < dtSource.Columns.Count; n++)
                {
                    tableContent.GetRow(i + 1).GetCell(n).SetParagraph(SetCellText(doc, tableContent, dtSource.Rows[i][n].ToString(), ParagraphAlignment.CENTER, 50));
                }
            }
            

            #endregion

        

            //保存文件到磁盘WinForm
            //string docPath = Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "DocxWord");

            //if (!Directory.Exists(docPath)) { Directory.CreateDirectory(docPath); }


            //string fileName = string.Format("{0}.doc", HttpUtility.UrlEncode("jjysd" + "_" + DateTime.Now.ToString("yyyyMMddHHmmssfff"), System.Text.Encoding.UTF8));

            //FileStream out1 = new FileStream(Path.Combine(docPath, fileName), FileMode.Create);
            //doc.Write(out1);
            //out1.Close();

            #region 保存导出WebForm

            //Response.Redirect(ResolveUrl(string.Format(@"~\DocxWord\{0}", fileName)));
            HttpContext curContext = HttpContext.Current;
            System.IO.MemoryStream ms = new System.IO.MemoryStream();
            doc.Write(ms);
            curContext.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.doc", HttpUtility.UrlEncode(filename + "_" + DateTime.Now.ToString("yyyyMMddHHmmssfff"), System.Text.Encoding.UTF8)));
            curContext.Response.BinaryWrite(ms.ToArray());
            curContext.Response.End();

            ms.Close();
            ms.Dispose();

            //using (MemoryStream ms = new MemoryStream())
            //{
            //    doc.Write(ms);
            //    Response.ClearContent();
            //    Response.Buffer = true;
            //    Response.ContentType = "application/octet-stream";
            //    Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.doc", HttpUtility.UrlEncode("军检验收单" + "_" + DateTime.Now.ToString("yyyyMMddHHmmssfff"), System.Text.Encoding.UTF8)));
            //    Response.BinaryWrite(ms.ToArray());
            //    //Response.End();
            //    Response.Flush();
            //    doc = null;
            //    ms.Close();
            //    ms.Dispose();
            //}

            #endregion
        }

      
        /// <summary>
        /// 设置字体格式
        /// </summary>
        /// <param name="doc"></param>
        /// <param name="table"></param>
        /// <param name="setText"></param>
        /// <returns></returns>
        public static XWPFParagraph SetCellText(XWPFDocument doc, XWPFTable table, string setText)
        {
            //table中的文字格式设置
            CT_P para = new CT_P();
            XWPFParagraph pCell = new XWPFParagraph(para, table.Body);
            pCell.Alignment = ParagraphAlignment.CENTER;//字体居中
            pCell.VerticalAlignment = TextAlignment.CENTER;//字体居中
            XWPFRun r1c1 = pCell.CreateRun();
            r1c1.SetText(setText);
            r1c1.FontSize = 12;
            r1c1.SetFontFamily("华文楷体", FontCharRange.None);//设置雅黑字体
            //r1c1.SetTextPosition(20);//设置高度

            return pCell;
        }

        /// <summary>
        /// 设置单元格格式
        /// </summary>
        /// <param name="doc">doc对象</param>
        /// <param name="table">表格对象</param>
        /// <param name="setText">要填充的文字</param>
        /// <param name="align">文字对齐方式</param>
        /// <param name="textPos">rows行的高度</param>
        /// <returns></returns>
        public static XWPFParagraph SetCellText(XWPFDocument doc, XWPFTable table, string setText, ParagraphAlignment align, int textPos)
        {
            CT_P para = new CT_P();
            XWPFParagraph pCell = new XWPFParagraph(para, table.Body);
            //pCell.Alignment = ParagraphAlignment.LEFT;//字体
            pCell.Alignment = align;

            XWPFRun r1c1 = pCell.CreateRun();
            r1c1.SetText(setText);
            r1c1.FontSize = 12;
            r1c1.SetFontFamily("华文楷体", FontCharRange.None);//设置雅黑字体
            //r1c1.SetTextPosition(textPos);//设置高度
            r1c1.TextPosition = textPos;

            return pCell;
        }

    } 
}