handle Export PDF

PdfExport.java

@@ -0,0 +1,128 @@
+package de.uni_koeln.spinfo.upcase.util;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+import org.junit.Before;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import com.itextpdf.text.BaseColor;
+import com.itextpdf.text.DocumentException;
+import com.itextpdf.text.Image;
+import com.itextpdf.text.Rectangle;
+import com.itextpdf.text.pdf.BaseFont;
+import com.itextpdf.text.pdf.PdfContentByte;
+import com.itextpdf.text.pdf.PdfWriter;
+
+import de.uni_koeln.spinfo.upcase.mongodb.data.document.future.Box;
+import de.uni_koeln.spinfo.upcase.mongodb.data.document.future.Page;
+import de.uni_koeln.spinfo.upcase.mongodb.data.document.future.Word;
+import de.uni_koeln.spinfo.upcase.mongodb.repository.future.PageRepository;
+
+@Component
+public class PdfExport {
+	Logger logger = LoggerFactory.getLogger(getClass());
+
+	@Autowired 
+	private HOCRParser hocrParser;
+
+	@Autowired
+	private PageRepository pageRepository;
+
+	private Page page;
+	private String token;
+	int x1;
+	int x2;
+	int y1;
+	int y2;
+	float boxWidth;
+	float boxHeight;
+	private String src = "OCR/PPN345572629_0004-0007.png";
+	float pointsPerInch = 72.0f;
+	float lineWidth=0;
+
+
+	public void exportToPDF() throws DocumentException, IOException {
+
+		Image pageImage = Image.getInstance(src);
+	//	Image pageImage = Image.g;
+
+
+		float dotsPerPointX = pageImage.getDpiX() / pointsPerInch;
+		float dotsPerPointY = pageImage.getDpiY() / pointsPerInch;
+		float pageImagePixelHeight = pageImage.getHeight();
+
+		Rectangle whitePage = new Rectangle(pageImage.getWidth() / dotsPerPointX,
+				pageImage.getHeight() / dotsPerPointY);
+
+		com.itextpdf.text.Document pdfDocument = new com.itextpdf.text.Document(whitePage);
+
+		PdfWriter pdfWriter = PdfWriter.getInstance(pdfDocument, new FileOutputStream("sample.pdf"));
+
+		pdfDocument.open();
+
+		PdfContentByte cb = pdfWriter.getDirectContent();
+
+		pageImage.scaleToFit(pageImage.getWidth() / dotsPerPointX, pageImage.getHeight() / dotsPerPointY);
+
+		pageImage.setAbsolutePosition(0, 0);
+		pdfWriter.getDirectContent().addImage(pageImage);
+		whitePage.setBackgroundColor(BaseColor.WHITE);
+		cb.rectangle(whitePage);
+		BaseFont font = BaseFont.createFont("src/main/webapp/bootstrap/fonts/OldNewspaperTypes.ttf", "UTF-8", BaseFont.EMBEDDED);
+
+
+
+		List<Word> words = page.getWords();
+		for (Word word : words) {
+			token = word.getToken();
+			Box box = word.getBox();
+			x1 = box.getX1();
+			y1 = box.getY1();
+			x2 = box.getX2();
+			y2 = box.getY2();
+
+			boxWidth = (x2 - x1) / dotsPerPointX;
+			boxHeight = (y2 - y1) / dotsPerPointY;
+
+
+			System.out.println(token + "-->" + box);
+
+			cb.beginText();		
+
+			boolean textScaled = false;					
+			do {
+				  lineWidth = font.getWidthPoint(token,boxHeight);
+				 if(lineWidth < boxWidth){
+					 textScaled = true;
+				 } else {
+					 boxHeight-=0.1f;
+				 }
+			} while (textScaled==false);
+
+			cb.setFontAndSize(font, boxHeight);
+
+			cb.moveText((float) ((x1) / dotsPerPointX), (float) ((pageImagePixelHeight
+
+					- y2) / dotsPerPointY));
+			cb.showText(token);
+			System.out.println(cb);
+			cb.endText();
+		}
+		pdfDocument.close();
+	}
+
+
+}