用C#实现生成PDF文档(zt)

转....





using System.Drawing;


using System.Collections;


using System.ComponentModel;


using System.Windows.Forms;


using System.Data;


using System.IO;


using System.Text;


namespace PDFGenerator






{




/**////


/// Form1 的摘要说明。


///


public class Form1 : System.Windows.Forms.Form






{




/**////


/// 必需的设计器变量。


///


private System.ComponentModel.Container components = null;




public Form1()






{


//


// Windows 窗体设计器支持所必需的


//


InitializeComponent();




//


// TODO: 在 InitializeComponent 调用后添加任何构造函数代码


//


}






/**////


/// 清理所有正在使用的资源。


///


protected override void Dispose( bool disposing )






{


if( disposing )






{


if (components != null)






{


components.Dispose();


}


}


base.Dispose( disposing );


}






Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码




/**////


/// 设计器支持所需的方法 - 不要使用代码编辑器修改


/// 此方法的内容。


///


private void InitializeComponent()






{


this.components = new System.ComponentModel.Container();


this.Size = new System.Drawing.Size(300,300);


this.Text = "Form1";


}


#endregion






static float pageWidth = 594.0f;


static float pageDepth = 828.0f;


static float pageMargin = 30.0f;


static float fontSize = 20.0f;


static float leadSize = 10.0f;






static StreamWriter pPDF=new StreamWriter("E:/myPDF.pdf");




static MemoryStream mPDF= new MemoryStream();




static void ConvertToByteAndAddtoStream(string strMsg)






{


Byte[] buffer=null;


buffer=ASCIIEncoding.ASCII.GetBytes(strMsg);


mPDF.Write(buffer,0,buffer.Length);


buffer=null;


}




static string xRefFormatting(long xValue)






{


string strMsg =xValue.ToString();


int iLen=strMsg.Length;


if (iLen<10)






{


StringBuilder s=new StringBuilder();


int i=10-iLen;


s.Append('0',i);


strMsg=s.ToString() + strMsg;


}


return strMsg;


}




static void Main(string[] args)






{


ArrayList xRefs=new ArrayList();


//Byte[] buffer=null;


float yPos =0f;


long streamStart=0;


long streamEnd=0;


long streamLen =0;


string strPDFMessage=null;


//PDF文档头信息


strPDFMessage="%PDF-1.1 ";


ConvertToByteAndAddtoStream(strPDFMessage);




xRefs.Add(mPDF.Length);


strPDFMessage="1 0 obj ";


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage="<< /Length 2 0 R >> ";


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage="stream ";


ConvertToByteAndAddtoStream(strPDFMessage);




/**/////////PDF文档描述


streamStart=mPDF.Length;


//字体


strPDFMessage="BT /F0 " + fontSize +" Tf ";


ConvertToByteAndAddtoStream(strPDFMessage);


//PDF文档实体高度


yPos = pageDepth - pageMargin;


strPDFMessage=pageMargin + " " + yPos +" Td " ;


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage= leadSize+" TL " ;


ConvertToByteAndAddtoStream(strPDFMessage);




//实体内容


strPDFMessage= "(http://www.wen***.org)Tj " ;


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage= "ET ";


ConvertToByteAndAddtoStream(strPDFMessage);


streamEnd=mPDF.Length;




streamLen=streamEnd-streamStart;


strPDFMessage= "endstream endobj ";


ConvertToByteAndAddtoStream(strPDFMessage);


//PDF文档的版本信息


xRefs.Add(mPDF.Length);


strPDFMessage="2 0 obj "+ streamLen + " endobj ";


ConvertToByteAndAddtoStream(strPDFMessage);




xRefs.Add(mPDF.Length);


strPDFMessage="3 0 obj <> endobj ";


ConvertToByteAndAddtoStream(strPDFMessage);




xRefs.Add(mPDF.Length);


strPDFMessage="4 0 obj <";


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage="/Kids[ 3 0 R ] ";


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage="/Resources<> >> ";


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage="/MediaBox [ 0 0 "+ pageWidth + " " + pageDepth + " ] >> endobj ";


ConvertToByteAndAddtoStream(strPDFMessage);




xRefs.Add(mPDF.Length);


strPDFMessage="5 0 obj <> endobj ";


ConvertToByteAndAddtoStream(strPDFMessage);




xRefs.Add(mPDF.Length);


strPDFMessage="6 0 obj <> endobj ";


ConvertToByteAndAddtoStream(strPDFMessage);




streamStart=mPDF.Length;


strPDFMessage="xref 0 7 0000000000 65535 f ";


for(int i=0;i<xRefs.Count;i++)






{


strPDFMessage+=xRefFormatting((long) xRefs)+" 00000 n ";


}


ConvertToByteAndAddtoStream(strPDFMessage);


strPDFMessage="trailer << /Size "+ (xRefs.Count+1)+" /Root 6 0 R >> ";


ConvertToByteAndAddtoStream(strPDFMessage);




strPDFMessage="startxref " + streamStart+" %%EOF ";


ConvertToByteAndAddtoStream(strPDFMessage);


mPDF.WriteTo(pPDF.BaseStream);




mPDF.Close();


pPDF.Close();


}


}//form


}