package com.jll.demo;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Font;
import com.itextpdf.text.Image;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfGState;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfStamper;
import com.itextpdf.text.pdf.PdfWriter;
/**
 * 
 * @author jiang.lili
 *
 */
public class PDFBuild {
	/**
	 * ��������������ʽ�ʹ�С
	 * @return
	 */
	 private static Font setChineseFont() {
         BaseFont base = null;
         Font fontChinese = null;
         // ����������
        
             try {
				base = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H",
				         BaseFont.EMBEDDED);
				 fontChinese = new Font(base, 12, Font.NORMAL);
			} catch (DocumentException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
            
      
         return fontChinese;
     }
	 // ����������
	// private static final String OWNERPASSWORD = "123456";
	
	  public static void buidPDF(String txtFilePath,String pdfFile, String imageFile,
			             String waterMarkName, int permission) {  
			          try {  
			             File file = File.createTempFile("tempFile", ".pdf"); // ������ʱ�ļ�  
			    
			              // ���PDF  
			              if (createPDFFile(txtFilePath,file)) {  
			                 waterMark(file.getPath(), imageFile, pdfFile,waterMarkName,  
			                          permission); // ���ˮӡ  
			              }  
			          } catch (Exception e) {  
			              e.printStackTrace();  
			          }  
			      }  
			    
			      /** 
			       * ����PDF�ļ� 
			       *  
			       * @param file 
			       *            ��ʱ�ļ� 
			       * @return �ɹ�/ʧ�� 
			       */  
			     public static boolean createPDFFile(String txtFilePath,File file) { 
			    	 // ����ֽ��
			         Rectangle rect = new Rectangle(PageSize.A4);  
			         Document doc = new Document(rect, 50.0F, 50.0F, 50.0F, 50.0F);  
			          try {  
			        	 
			        	  FileReader fileRead = new FileReader(txtFilePath);
			        	  BufferedReader read = new BufferedReader(fileRead);
			              PdfWriter.getInstance(doc, new FileOutputStream(file));  
			              doc.open();  
			           // ʵ��Paragraph ��ȡд��pdf�ļ������ݣ�����֧�����ĵķ���. step4
			              while (read.ready()) {
			                  // ������ݵ�pdf(���ｫ�ᰴ��txt�ļ���ԭʼ��ʽ���)
			            	  System.out.println(read.readLine());
			            	  //����ʾ��û���
			                  doc.add(new Paragraph(read.readLine(), setChineseFont()));
			              }
			              BaseFont bf = BaseFont.createFont("C:/WINDOWS/Fonts/SIMSUN.TTC,1",  
				                     "Identity-H", true);// ʹ��ϵͳ����  
				             Font font = new Font(bf, 14.0F, 0);  
				             font.setStyle(37); // ������ʽ  
				             font.setFamily("����"); // ��������  
			   
			              Paragraph p = new Paragraph("�� �� ͨ ֪ ��\r\n", font);  
			              p.setAlignment(1);  
			              doc.add(p);  
			              return true;  
			         } catch (Exception e) {  
			              e.printStackTrace();
			              return false; 
			          } finally{
			        	  doc.close();
			          } 
			      }  
			    /**
			     * ��ʼ��ԲȦ�����������ԲȦ���������λ��
			     * @param inputFile
			     * @param imageFile ͼƬ·��
			     * @param outputFile ���pdf·��
			     * @param waterMarkName Ҫ��ʾԲȦ�������
			     * @param permission
			     */
			     public static void waterMark(String inputFile, String imageFile,
			              String outputFile, String waterMarkName, int permission) {  
			         try {  
			              PdfReader reader = new PdfReader(inputFile);  
			              PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(  
			                      outputFile));  

			              // ��������(������֮ǰ��demoҲû��ʵ��Ŀǰû�ҵ�ԭ��)
			               //stamper.setEncryption(userPassWord.getBytes(), ownerPassWord.getBytes(), permission, false);
			              BaseFont base = BaseFont.createFont(  
			                     "C:/WINDOWS/Fonts/SIMSUN.TTC,1", "Identity-H", true);// ʹ��ϵͳ����  
			    
			              int total = reader.getNumberOfPages() + 1;  
			              Image image = Image.getInstance(imageFile);  
			    
			              // ͼƬλ��  (��߾࣬�߶�)
			              image.setAbsolutePosition(50, 100);  
			              image.setRotation(-20);//��ת ����
			              image.setRotationDegrees(-45);//��ת �Ƕ�
			              //image.scaleAbsolute(200,100);//�Զ����С
			              image.scalePercent(30);//���ձ�������
			             PdfContentByte under;  
			             int j = waterMarkName.length();  
			              char c = 0;  
			            int rise = 0;  
			              for (int i = 1; i < total; i++) {  
			                  rise = 420;  
			                under = stamper.getUnderContent(i); 
			                // ���ˮӡͼƬ  
			                under.addImage(image);  
			                PdfGState gs = new PdfGState();
			                gs.setFillOpacity(0.2f);// ����͸����Ϊ0.2(�о�ûЧ��)
			                under.setGState(gs);
			                
			                // ����ˮӡ����������б ��ʼ
			                 under.beginText(); 
			                 under.setColorFill(BaseColor.DARK_GRAY);
			                 //under.setGrayFill(0.1f);//���ñ�����ɫ��(���������õ�Ч����)
			                 under.setFontAndSize(base, 15);  
			    
			                  if (j >= 15) {  
			                    under.setTextMatrix(200, 120);  
			                      for (int k = 0; k < j; k++) {  
			                          under.setTextRise(rise);  
			                          c = waterMarkName.charAt(k);  
			                          under.showText(c + "");  
			                      }  
			                  } else {  
			                	  //����������ұ߿���260�����
			                      under.setTextMatrix(265, 100);  
			                     for (int k = 0; k < j; k++) {  
			                        under.setTextRise(rise);  
			                         c = waterMarkName.charAt(k);  
			                         under.showText(c + "");  
			                        rise -= 18;  
			                     }  
			                  }  
			               
			                 // ���ˮӡ����  ����
			                 under.endText();  
			                 // ����Ȧ  
			                  under.ellipse(250, 450, 350, 550);  
			                  under.setLineWidth(2f);  //Ȧ�Ŀ��
			                  under.stroke();  
			             }  
			            stamper.close();  
			         } catch (Exception e) {  
			              e.printStackTrace();  
			         }  
			    }  
			    
			      public static void main(String[] args) {  
			         String imageFilePath = "WebContent/image/00.jpg"; // ˮӡͼƬ·��  
			         String pdfFilePath = "D:/itext.pdf"; // �ļ����·��  
			         String txtFilePath = "d:/01.txt";// txtԭʼ�ļ���·��
			         buidPDF(txtFilePath,pdfFilePath, imageFilePath, "�����Ȩ", 16);  
			   }  

}