pdf 转 zpl

package com.icil.elsa.label.common.utils;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ExecutorService;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.ImageType;
import org.apache.pdfbox.rendering.PDFRenderer;

import com.icil.elsa.label.service.client.UpLoadS3Thread;

import lombok.extern.slf4j.Slf4j;

/***********************************************************************
 *<PRE>
 *
 *  File Name       : 
 *
 *  Creation Date   : 19-9-4
 *
 *  Author          : 
 *
 *  Purpose         : 
 *
 *  History         : 
 *
 *</PRE>
 ***************************************************************************/
@Slf4j
public class ZPLConveterUtils {

    private int blackLimit = 380;

    private int total;

    private int widthBytes;

    private boolean compressHex = false;

    private static Map<Integer, String> mapCode = new HashMap<Integer, String>();

    {
        mapCode.put(1, "G");
        mapCode.put(2, "H");
        mapCode.put(3, "I");
        mapCode.put(4, "J");
        mapCode.put(5, "K");
        mapCode.put(6, "L");
        mapCode.put(7, "M");
        mapCode.put(8, "N");
        mapCode.put(9, "O");
        mapCode.put(10, "P");
        mapCode.put(11, "Q");
        mapCode.put(12, "R");
        mapCode.put(13, "S");
        mapCode.put(14, "T");
        mapCode.put(15, "U");
        mapCode.put(16, "V");
        mapCode.put(17, "W");
        mapCode.put(18, "X");
        mapCode.put(19, "Y");
        mapCode.put(20, "g");
        mapCode.put(40, "h");
        mapCode.put(60, "i");
        mapCode.put(80, "j");
        mapCode.put(100, "k");
        mapCode.put(120, "l");
        mapCode.put(140, "m");
        mapCode.put(160, "n");
        mapCode.put(180, "o");
        mapCode.put(200, "p");
        mapCode.put(220, "q");
        mapCode.put(240, "r");
        mapCode.put(260, "s");
        mapCode.put(280, "t");
        mapCode.put(300, "u");
        mapCode.put(320, "v");
        mapCode.put(340, "w");
        mapCode.put(360, "x");
        mapCode.put(380, "y");
        mapCode.put(400, "z");
    }

    public void setCompressHex(boolean compressHex) {
        this.compressHex = compressHex;
    }

    public void setBlacknessLimitPercentage(int percentage) {
        this.blackLimit = (percentage * 768 / 100);
    }

    private String headDoc() {
        String str = "^XA " + "^FO0,0^GFA," + total + "," + total + "," + widthBytes + ", ";
        return str;
    }

    private String footDoc() {
        String str = "^FS" + "^XZ";
        return str;
    }

    /**
     * Image to zpi string data.
     *
     * @param image
     * @return
     * @throws IOException
     */
    public String convertfromImg(BufferedImage image) throws IOException {
        String cuerpo = createBody(image);
        if (compressHex) {
            cuerpo = encodeHexAscii(cuerpo,20);
        }
        return headDoc() + cuerpo + footDoc();

    }

    /**
     * the BufferedImage to String
     *
     * @param orginalImage
     * @return
     * @throws IOException
     */
    private String createBody(BufferedImage orginalImage) throws IOException {
        StringBuffer sb = new StringBuffer();
        Graphics2D graphics = orginalImage.createGraphics();
        graphics.drawImage(orginalImage, 0, 0, null);
        int height = orginalImage.getHeight();
        int width = orginalImage.getWidth();

        // int newWidth = width + 200;
        int rgb, red, green, blue, index = 0;
        char auxBinaryChar[] = {'0', '0', '0', '0', '0', '0', '0', '0'};
        // widthBytes = width / 16 ;
        // widthBytes = width % 8 > 0 ? (((int) (width / 8)) + 1) : width / 8;
        widthBytes = width % 8 > 0 ? (((int) (width / 8)) + 1) : width / 8;
        this.total = widthBytes * height;
        for (int h = 0; h < height; h++) {
            for (int w = 0; w < width; w++) {
                rgb = orginalImage.getRGB(w, h);
                red = (rgb >> 16) & 0x000000FF;
                green = (rgb >> 8) & 0x000000FF;
                blue = (rgb) & 0x000000FF;
                char auxChar = '1';
                int totalColor = red + green + blue;
                if (totalColor > blackLimit) {
                    auxChar = '0';
                }
                auxBinaryChar[index] = auxChar;
                index++;
                if (index == 8 || w == (width - 1)) {
                    sb.append(fourByteBinary(new String(auxBinaryChar)));
                    auxBinaryChar = new char[]{'0', '0', '0', '0', '0', '0', '0', '0'};
                    index = 0;
                }
            }
            sb.append("\n");
        }
        return sb.toString();
    }

    /**
     * @param binaryStr
     * @return
     */
    private String fourByteBinary(String binaryStr) {
        int decimal = Integer.parseInt(binaryStr, 2);
        return decimal > 15 ? Integer.toString(decimal, 16).toUpperCase() : "0" + Integer.toString(decimal, 16).toUpperCase();
    }

    /**
     * @param code
     * @return
     */
    private String encodeHexAscii(String code) {
        int maxlinea = widthBytes * 2;
        StringBuffer sbCode = new StringBuffer();
        StringBuffer sbLinea = new StringBuffer();
        String previousLine = null;
        int counter = 1;
        char aux = code.charAt(0);
        boolean firstChar = false;
        for (int i = 1; i < code.length(); i++) {
            if (firstChar) {
                aux = code.charAt(i);
                firstChar = false;
                continue;
            }
            if (code.charAt(i) == '\n') {
                if (counter >= maxlinea && aux == '0') {
                    sbLinea.append(",");
                } else if (counter >= maxlinea && aux == 'F') {
                    sbLinea.append("!");
                } else if (counter > 20) {
                    int multi20 = (counter / 20) * 20;
                    int resto20 = (counter % 20);
                    sbLinea.append(mapCode.get(multi20));
                    if (resto20 != 0) {
                        sbLinea.append(mapCode.get(resto20) + aux);
                    } else {
                        sbLinea.append(aux);
                    }
                } else {
                    sbLinea.append(mapCode.get(counter) + aux);
                    if (mapCode.get(counter) == null) {
                    }
                }
                counter = 1;
                firstChar = true;
                if (sbLinea.toString().equals(previousLine)) {
                    sbCode.append(":");
                } else {
                    sbCode.append(sbLinea.toString());
                }
                previousLine = sbLinea.toString();
                sbLinea.setLength(0);
                continue;
            }
            if (aux == code.charAt(i)) {
                counter++;
            } else {
                if (counter > 20) {
                    int multi20 = (counter / 20) * 20;
                    int resto20 = (counter % 20);
                    sbLinea.append(mapCode.get(multi20));
                    if (resto20 != 0) {
                        sbLinea.append(mapCode.get(resto20) + aux);
                    } else {
                        sbLinea.append(aux);
                    }
                } else {
                    sbLinea.append(mapCode.get(counter) + aux);
                }
                counter = 1;
                aux = code.charAt(i);
            }
        }
        return sbCode.toString();
    }


    private String encodeHexAscii(String code,int number) {
        int maxlinea = widthBytes * 2;
        StringBuffer sbCode = new StringBuffer();
        StringBuffer sbLinea = new StringBuffer();
        String previousLine = null;
        int counter = 1;
        char aux = code.charAt(0);
        boolean firstChar = false;
        for (int i = 1; i < code.length(); i++) {
            if (firstChar) {
                aux = code.charAt(i);
                firstChar = false;
                continue;
            }
            if (code.charAt(i) == '\n') {
                if (counter >= maxlinea && aux == '0') {
                    sbLinea.append(",");
                } else if (counter >= maxlinea && aux == 'F') {
                    sbLinea.append("!");
                } else if (counter > number) {
                    int multi20 = (counter / number) * number;
                    int resto20 = (counter % number);
                    sbLinea.append(mapCode.get(multi20));
                    if (resto20 != 0) {
                        sbLinea.append(mapCode.get(resto20) + aux);
                    } else {
                        sbLinea.append(aux);
                    }
                } else {
                    sbLinea.append(mapCode.get(counter) + aux);
                    if (mapCode.get(counter) == null) {
                    }
                }
                counter = 1;
                firstChar = true;
                if (sbLinea.toString().equals(previousLine)) {
                    sbCode.append(":");
                } else {
                    sbCode.append(sbLinea.toString());
                }
                previousLine = sbLinea.toString();
                sbLinea.setLength(0);
                continue;
            }
            if (aux == code.charAt(i)) {
                counter++;
            } else {
                if (counter > number) {
                    int multi20 = (counter / number) * number;
                    int resto20 = (counter % number);
                    sbLinea.append(mapCode.get(multi20));
                    if (resto20 != 0) {
                        sbLinea.append(mapCode.get(resto20) + aux);
                    } else {
                        sbLinea.append(aux);
                    }
                } else {
                    sbLinea.append(mapCode.get(counter) + aux);
                }
                counter = 1;
                aux = code.charAt(i);
            }
        }
        return sbCode.toString();
    }
    
    
    public static String convertPDFToZPL(String pdfPath, boolean isRotate) {
		File sourceFile = new File(pdfPath);
		// File destinationFile = new File(destinationDir);
		PDDocument document = null;
		FileWriter fw = null;
		BufferedWriter bw = null;
		try {
			if (sourceFile.exists()) {
				// System.out.println("Images copied to Folder Location: "+
				// destinationFile.getAbsolutePath());
				document = PDDocument.load(sourceFile);
				// PDPage page = document.getDocumentCatalog().getPages().get(0);
				/*
				 * PDPageContentStream cs = new PDPageContentStream(document, page,
				 * PDPageContentStream.AppendMode.PREPEND, false, false); PDRectangle cropBox =
				 * page.getCropBox(); float tx = (cropBox.getLowerLeftX() +
				 * cropBox.getUpperRightX()) / 2; float ty = (cropBox.getLowerLeftY() +
				 * cropBox.getUpperRightY()) / 2; cs.transform(Matrix.getTranslateInstance(tx,
				 * ty)); cs.transform(Matrix.getRotateInstance(Math.toRadians(90), 0, 0));
				 * cs.transform(Matrix.getTranslateInstance(-tx, -ty)); cs.close(); File file =
				 * new File(JasperService.class.getResource("/").getPath()+ "file/",
				 * "IRJET_Copy_Right_form-rotated-center-scale.pdf"); if(!file.exists()) {
				 * //file.createNewFile(); } document.save(new File(
				 * "/home/peterwong/svn/Microservices/labelService/trunk/main_body/src_codes/src/elsa-label-service/target/classes/files",
				 * "IRJET_Copy_Right_form-rotated-center-scale.pdf"));
				 */
				PDFRenderer pdfRenderer = new PDFRenderer(document);

				int numberOfPages = document.getNumberOfPages();
				//log.info("Total files to be converting -> " + numberOfPages);

				String fileName = sourceFile.getName();
				/*
				 * 600 dpi give good image clarity but size of each image is 2x times of 300
				 * dpi. Ex: 1. For 300dpi 04-Request-Headers_2.png expected size is 797 KB 2.
				 * For 600dpi 04-Request-Headers_2.png expected size is 2.42 MB
				 */
				int dpi = 203;// use less dpi for to save more space in harddisk. For professional usage you
								// can use more than 300dpi

				// for (int i = 0; i < numberOfPages; ++i) {
				
				File imageFile = new File( pdfPath.replace("pdf", "png"));
				 
				//
				BufferedImage bImage = pdfRenderer.renderImageWithDPI(0, dpi, ImageType.RGB);
				if (isRotate) {
					// 旋转图片90度
					bImage = RotateImage.Rotate(bImage, 90);
				}
				// ImageIO.write(des1, fileExtension, imageFile);
				ZPLConveterUtils zplConveterUtils = new ZPLConveterUtils();
				String zplStr = zplConveterUtils.convertfromImg(bImage);
				zplStr = zplStr.replace("\n", "");
				log.info("zpl is {}",zplStr);
				String zplFilePath = pdfPath.replace("pdf", "txt");
				FileUtils.writeToFile(zplStr, zplFilePath);

				

				// }
				// System.out.println("convertfromiMg "+ convertfromImg);
				//是否将数据发送到打印机,ULHKG_LP4X1 是label 打印机
				//ServerPrintService.print("ULHKG_LP4X1", zplStr, null,null);
				// ImageIO.write(bImage, fileExtension, outPutFile);


				/*
				 * Base64 base64 = new Base64();
				 * 
				 * // Decode encoded ZPL to a normal format String convertedZPL = new
				 * String(base64.decode(zpl.getBytes()));
				 */
				// System.out.println(convertedZPL);
				return zplStr;
			} else {
				log.error("generate pdf failed");
			}
			
		} catch (Exception e) {
			log.error("e is {}", e);
		} finally {
			try {
				if (document != null) {
					document.close();
				}
			} catch (IOException e) {
				log.error("close stram failed,the exception is {}", e);
			}
		}
		
		return "";
	}

}



//test
import org.junit.Test;

import com.icil.elsa.label.common.utils.FileUtils;
import com.icil.elsa.label.common.utils.ZPLConveterUtils;

public class ZPLUtils {
	
	
	@Test
	public void test() {
		String pdfPath = "/home/zhangsan/Pictures/API_test_label.pdf";
		String fileDataString = ZPLConveterUtils.convertPDFToZPL(pdfPath, false);
		FileUtils.writeToFile(fileDataString, "/home/zhangsan/Pictures/API_test_label.txt");
		
	}

}


posted @ 2020-07-20 17:38  尘世的流浪人  阅读(861)  评论(0编辑  收藏  举报