C# 生成PDF文件（itextsharp二次封裝）

using iTextSharp.text;
using iTextSharp.text.pdf;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MakePDF
{
public enum TextAlign
{
////單元格文字對齊方式
//const int horizontalAlignment = Element.ALIGN_CENTER;
//const int verticalAlignment = Element.ALIGN_MIDDLE;
//const int bottomAlignment = Element.ALIGN_BOTTOM;
//const int leftHAlignment = Element.ALIGN_LEFT;
//const int rightHAlignment = Element.ALIGN_RIGHT;

/// <summary>
/// 水平居中
/// </summary>
HA = Element.ALIGN_CENTER,
/// <summary>
/// 垂直居中
/// </summary>
VA = Element.ALIGN_MIDDLE,
/// <summary>
/// 下對齊
/// </summary>
BA = Element.ALIGN_BOTTOM,
/// <summary>
/// 左對齊
/// </summary>
LA = Element.ALIGN_LEFT,
/// <summary>
/// 右對齊
/// </summary>
RA = Element.ALIGN_RIGHT
}
public class MPDF
{
public Document doc = null;
MemoryStream pdfMS = null;
//不要私自改這個變量的值
public float top = 0;
public float maxTop = 0;
string path = null;
int pageNum = 1;
public iTextSharp.text.Rectangle size = null;
/// <summary>
///
/// </summary>
/// <param name="size">例如：PageSize.A4</param>
/// <param name="size">pdf文件保存路徑</param>
public MPDF(iTextSharp.text.Rectangle size, string path)
{
this.path = path;
this.size = size;
doc = new Document(size);//定義一個Document，並設置頁面大小爲A4，橫向
pdfMS = new MemoryStream();
PdfWriter.GetInstance(doc, pdfMS);//PDF內容放入到流中
doc.Open();
maxTop = size.Height - doc.BottomMargin - doc.TopMargin;
}

/// <summary>
/// 只是給MPDF_Table調用的，不需額外調用
/// </summary>
public void Add(PdfPTable ptable)
{
doc.Add(ptable);
top += ptable.TotalHeight;
pageNum = (int)(top / maxTop);
float more = top - maxTop * pageNum;
if (more > 0)
pageNum++;
}

public string save()
{
try
{
doc.NewPage();//分頁
doc.Close();
byte[] fileByte = pdfMS.GetBuffer();
FileStream fs = new FileStream(path, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(fileByte);
bw.Close();
fs.Close();
return null;
}
catch (Exception e)
{
return e.ToString();
}
}
}
public class MPDF_Table
{
//字體集合
BaseFont[] bfs = new BaseFont[] {
BaseFont.CreateFont("C://WINDOWS//Fonts//simsun.ttc,1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED),//宋體
BaseFont.CreateFont("C://WINDOWS//Fonts//simhei.ttf", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED)//黑體
};

iTextSharp.text.Font font = null;
PdfPTable pdfTableInfo = null;
MPDF pdf = null;
int fontIndex = 0;
int fontSize = 0;
float cellHeight = 0;
int hasUseCellNum = 0;
public int maxCellNum = 0;//每行必須填滿，否則不會顯示
/// <summary>
/// 表格，注意：當添加一個表格到pdf後，下一個添加的表格的初始y值會在上一個表格的y和高度和的基礎上疊加
/// </summary>
/// <param name="cellWidths">表格的列寬集合</param>
/// <param name="pdf">該表格將寫入的pdf文件</param>
/// <param name="fontSize">表格默認字體大小</param>
/// <param name="cellHeight">表格默認行高</param>
/// <param name="fontIndex">表格默認字體，即文件C:/WINDOWS/Fonts/下的字體文件名</param>
/// <param name="align">表格默對齊方式，水平居中，只能調整水平方向</param>
///
public MPDF_Table(float[] cellWidths, MPDF pdf, int fontSize, float cellHeight, int fontIndex = 0, TextAlign align = TextAlign.HA)
{
this.fontSize = fontSize;
maxCellNum = cellWidths.Length;
this.cellHeight = cellHeight;
font = new iTextSharp.text.Font(bfs[fontIndex], fontSize);
this.fontIndex = fontIndex;
this.pdf = pdf;
pdfTableInfo = new PdfPTable(cellWidths.Length);
pdfTableInfo.SetWidthPercentage(cellWidths, pdf.size);
pdfTableInfo.NormalizeHeadersFooters();
pdfTableInfo.SplitLate = false;
pdfTableInfo.HorizontalAlignment = (int)align;
//pdfTableInfo.TotalWidth = 605;
}

/// <summary>
/// 添加單元格，規則：疊加式，第一行堆滿自動換行到第二行，特殊情況：例如，當某行只剩一個單元格的時候，你添加一個佔兩個單元格位置的單元格，那麼它實際佔用的只有一個單元格。
/// </summary>
/// <param name="txt">單元格內容</param>
/// <param name="Colspan">單元格佔據多少個格子</param>
/// <param name="fontIndex">字體設置，-1代表使用表格所設字體</param>
/// <param name="fontSize">字體設置，-1代表使用表格所設字體大小</param>
/// <param name="BorderWidthTop">單元格邊框線條寬度，默認0，即無線條</param>
/// <param name="BorderWidthLeft">單元格邊框線條寬度，默認0，即無線條</param>
/// <param name="BorderWidthRight">單元格邊框線條寬度，默認0，即無線條</param>
/// <param name="BorderWidthBottom">單元格邊框線條寬度，默認0，即無線條</param>
/// <param name="cellHeight">單元格高度默認0，即表格初始化所用高度</param>
/// <param name="HorizontalAlignment">單元格文本水平對齊方式</param>
/// <param name="VerticalAlignment">單元格文本垂直對齊方式</param>
public void AddTextCell(string txt,
int Colspan = 1,
int fontIndex = -1,
int fontSize = -1,
int BorderWidthTop = 0,
int BorderWidthLeft = 0,
int BorderWidthRight = 0,
int BorderWidthBottom = 0,
float cellHeight = 0,
TextAlign HorizontalAlignment = TextAlign.LA,
TextAlign VerticalAlignment = TextAlign.HA)
{
iTextSharp.text.Font font = null;
if (fontSize == -1)
fontSize = this.fontSize;
if (fontIndex == -1)
font = this.font;
else
font = new iTextSharp.text.Font(bfs[fontIndex], fontSize);

if (cellHeight == 0)
cellHeight = this.cellHeight;
PdfPCell pdfPInfoCell = new PdfPCell(new Phrase(txt, font));
pdfPInfoCell.MinimumHeight = cellHeight;
pdfPInfoCell.BorderWidthTop = BorderWidthTop;
pdfPInfoCell.BorderWidthLeft = BorderWidthLeft;
pdfPInfoCell.BorderWidthRight = BorderWidthRight;
pdfPInfoCell.BorderWidthBottom = BorderWidthBottom;
pdfPInfoCell.Colspan = Colspan;
pdfPInfoCell.BorderColor = new BaseColor(0, 0, 0); //單元格邊框顏色，默認黑色
pdfPInfoCell.HorizontalAlignment = (int)HorizontalAlignment;
pdfPInfoCell.VerticalAlignment = (int)VerticalAlignment;
pdfTableInfo.AddCell(pdfPInfoCell);

hasUseCellNum += Colspan;
if (hasUseCellNum >= maxCellNum)
hasUseCellNum = 0;
}

/// <summary>
/// 將一張圖片填在單元格
/// </summary>
/// <param name="ImagePath">圖片路徑</param>
/// <param name="Colspan">單元格佔用空間,默認佔用一個基礎格子</param>
/// <param name="Border">邊框線條寬度，默認0，無邊框</param>
/// <param name="HorizontalAlignment">單元格內容水平對齊方式</param>
/// <param name="VerticalAlignment">單元格內容垂直對齊方式</param>
public void AddImageCell(string ImagePath,
int Colspan = 1,
int Border = 0,
TextAlign HorizontalAlignment = TextAlign.LA,
TextAlign VerticalAlignment = TextAlign.HA)
{
PdfPCell pdfPInfoCell = new PdfPCell();
pdfPInfoCell.Border = Border;
pdfPInfoCell.Colspan = Colspan;
pdfPInfoCell.HorizontalAlignment = (int)HorizontalAlignment;
pdfPInfoCell.VerticalAlignment = (int)VerticalAlignment;
pdfPInfoCell.PaddingLeft = 10;
//System.IO.Directory.GetCurrentDirectory() + @"\title2.png"
iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(ImagePath);
pdfPInfoCell.Image = image; //圖片
pdfTableInfo.AddCell(pdfPInfoCell);

hasUseCellNum += Colspan;
if (hasUseCellNum >= maxCellNum)
hasUseCellNum = 0;
}

/// <summary>
/// 添加一個沒有邊框的佔據表格的一行的單元格
/// </summary>
/// <param name="height"></param>
public void AddEmptyLine(float height)
{
AddTextCell("", maxCellNum, -1, -1, 0, 0, 0, 0, height);
}
public void AddEmptyLine()
{
AddTextCell("", maxCellNum, -1, -1, 0, 0, 0, 0, cellHeight);
}
//填滿最後一行
public void FullEndLine()
{
if (hasUseCellNum < maxCellNum && hasUseCellNum != 0)
{
AddTextCell("", maxCellNum - hasUseCellNum);
hasUseCellNum = 0;
}
}
public void AddTableToPDF()
{
//補齊
FullEndLine();
pdf.Add(pdfTableInfo);
}
/// <summary>
/// 把表格添加到末尾，執行了這一個方法後，這一頁就不能再添加內容了！後來添加的將放到下一頁，當然，如果末尾裝不下，會換到下一頁的末尾，這個有點坑
/// </summary>
public void AddTableToPDF_InEnd()
{
int pageNum = (int)(pdf.top / pdf.maxTop);
float more = pdf.top - pdf.maxTop * pageNum;
more = pdf.maxTop - more;
if (pdfTableInfo.TotalHeight > more)
{
MPDF_Table table = new MPDF_Table(new float[] { 10, 10 }, pdf, 1, more);
table.AddEmptyLine();
table.AddTableToPDF();
}
else
{
MPDF_Table table = new MPDF_Table(new float[] { 10, 10 }, pdf, 1, more - pdfTableInfo.TotalHeight);
table.AddEmptyLine();
table.AddTableToPDF();
}

AddTableToPDF();
}

}

//測試例子
public class MPDF_TEST
{
/// <summary>
/// 測試例子
/// </summary>
/// <param name="path">必須是完整的路徑，並且要保證路徑所在文件夾存在</param>
public static void GetYangWFZ_PDF(string path)
{
MPDF pdf = new MPDF(PageSize.A4, path);

MPDF_Table table = new MPDF_Table(new float[] { 50, 50, 81, 81, 172, 15, 157 }, pdf, 10, 20, 1);

//==============logo==================
string imagePath = System.IO.Directory.GetCurrentDirectory() + @"\title2.png";//這時一個圖片的路徑
table.AddTextCell("");
table.AddImageCell(imagePath, 4);
table.AddTextCell("");
table.AddTextCell("XXXXXX區長征路24號\n0000-000000", 1, 0, -1, 0, 0, 0, 0, 0, TextAlign.HA, TextAlign.BA);

table.AddEmptyLine(5);
//================基本信息===========================
table.AddTextCell("體液檢驗 MZFUS200", 3);
table.AddTextCell("", 2);
table.AddTextCell("標本編號：20192232322", 2);

table.AddTextCell("姓名：XXXXX", 2);
table.AddTextCell("病人類別：XXXX", 2);
table.AddTextCell("病員編號：502936");
table.AddTextCell("標本種類：XXXX", 2);

table.AddTextCell("性別：男", 2);
table.AddTextCell("病區科室：XXXXX", 2);
table.AddTextCell("臨牀診斷：");
table.AddTextCell("病員牀號：1111123", 2);

table.AddTextCell("年齡：20", 2, -1, -1, 0, 0, 0, 1);
table.AddTextCell("申請時間：2019/9/12 20:34", 2, -1, -1, 0, 0, 0, 1);
table.AddTextCell("送檢時間：2019/9/12 20:35", 1, -1, -1, 0, 0, 0, 1);
table.AddTextCell("採樣時間：2019/9/12 20:34", 2, -1, -1, 0, 0, 0, 1);
//==================培養結果==========================

table.AddTextCell("培養結果：", 4, 0);
table.AddTextCell(" 菌落計數：", 3, 0);
table.AddTextCell(" " + "支原體", 4, 1);//培養結果
table.AddTextCell(" " + ">10萬cfu/ml", 3, 0);
//==================藥敏試驗==========================
table.AddEmptyLine();
table.AddEmptyLine();
table.AddTextCell(" 藥敏試驗：", 4, 0);
table.FullEndLine();
table.AddTableToPDF();

table = new MPDF_Table(new float[] { 101, 101, 90, 11, 11, 90, 101, 101 }, pdf, 10, 13, 0);
table.AddTextCell("支原體", table.maxCellNum, 1, -1, 1, 0, 0, 0, 20, TextAlign.LA, TextAlign.BA);
table.AddTextCell("", 8, -1, -1, 0, 0, 0, 0, 5);
table.AddTextCell("", 4, -1, -1, 0, 0, 1, 1, 5);
table.AddTextCell("", 4, -1, -1, 0, 0, 0, 1, 5);
table.AddTextCell("藥物名稱", 1, -1, -1, 0, 0, 0, 1, 22);
table.AddTextCell("DISK（mm）", 1, -1, -1, 0, 0, 0, 1, 22, TextAlign.HA);
table.AddTextCell("敏感度", 1, -1, -1, 0, 0, 0, 1, 22, TextAlign.RA);
table.AddTextCell("", 1, -1, -1, 0, 0, 1, 1, 22, TextAlign.RA);

table.AddTextCell("", 1, -1, -1, 0, 0, 0, 1, 22, TextAlign.RA);
table.AddTextCell("藥物名稱", 1, -1, -1, 0, 0, 0, 1, 22);
table.AddTextCell("DISK（mm）", 1, -1, -1, 0, 0, 0, 1, 22, TextAlign.HA);
table.AddTextCell("敏感度 ", 1, -1, -1, 0, 0, 0, 1, 22, TextAlign.RA);

//模擬內容====
table.AddTextCell("頭孢");
table.AddTextCell("");
table.AddTextCell("耐藥", 1, -1, -1, 0, 0, 0, 0, 0, TextAlign.RA);
table.AddTextCell("", 1, -1, -1, 0, 0, 1);
table.AddTextCell("");
table.AddTextCell("頭孢");
table.AddTextCell("");
table.AddTextCell("耐藥", 1, -1, -1, 0, 0, 0, 0, 0, TextAlign.RA);

table.AddTextCell("頭孢");
table.AddTextCell("");
table.AddTextCell("耐藥", 1, -1, -1, 0, 0, 0, 0, 0, TextAlign.RA);
table.AddTextCell("", 1, -1, -1, 0, 0, 1);
table.AddTextCell("");
table.AddTextCell("頭孢");
table.AddTextCell("");
table.AddTextCell("耐藥", 1, -1, -1, 0, 0, 0, 0, 0, TextAlign.RA);

table.AddTableToPDF();

MPDF_Table table2 = new MPDF_Table(new float[] { 100, 170, 170, 160 }, pdf, 9, 14);
table2.AddTextCell("備註：", 4, -1, -1, 1);

table2.AddTextCell("送檢醫生：XXXX", 1, -1, -1, 1);
table2.AddTextCell("報告時間：2019/9/12 20:36", 1, -1, -1, 1);
table2.AddTextCell("檢驗：XXXX", 1, -1, -1, 1);
table2.AddTextCell("審覈：系統管理員", 1, -1, -1, 1);

table2.AddEmptyLine();

table2.AddTextCell("注：本次實驗報告僅對本次標本負責，如有疑問，請於24小時內提出諮詢", 3);
table2.AddTextCell("第1頁/共1頁", 1, -1, -1, 0, 0, 0, 0, 0, TextAlign.RA);
table2.AddTableToPDF_InEnd();

pdf.save();
}

}
}

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