Java Tutorial/PDF/Page Event

Содержание

1 extends PdfPageEventHelper
2 Pdf document footer
3 Pdf events: on chapter, on chapter end, on section, on document Close Document
4 Pdf Page Event Helper
5 Set PageEvent to Pdf document
6 Transition and Duration

extends PdfPageEventHelper

import java.awt.Color;
import java.io.FileOutputStream;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass {
  public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    writer.setPageEvent(new MyPdfPageEventHelper());
    document.open();
    Paragraph p = new Paragraph();
    Chunk fox = new Chunk("test");
    fox.setGenericTag("box");
    p.add(fox);
    p.add(" this is a test ");
    Chunk dog = new Chunk("test ");
    dog.setGenericTag("ellipse");
    p.add(dog);
    document.add(p);
    document.close();
  }
}
class MyPdfPageEventHelper extends PdfPageEventHelper {
  public void onGenericTag(PdfWriter writer, Document document, Rectangle rect, String text) {
    if ("ellipse".equals(text)) {
      PdfContentByte cb = writer.getDirectContent();
      cb.setRGBColorStroke(0xFF, 0x00, 0x00);
      cb.ellipse(rect.left(), rect.bottom() - 5f, rect.right(), rect.top());
      cb.stroke();
      cb.resetRGBColorStroke();
    } else if ("box".equals(text)) {
      PdfContentByte cb = writer.getDirectContentUnder();
      rect.setBackgroundColor(new Color(0xa5, 0x2a, 0x2a));
      cb.rectangle(rect);
    }
  }
}

Pdf document footer

import java.io.FileOutputStream;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.Phrase;
import com.lowagie.text.pdf.ColumnText;
import com.lowagie.text.pdf.PdfAction;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass extends PdfPageEventHelper {
  protected Phrase header = new Phrase("header");
  protected PdfPTable footer = new PdfPTable(4);
  public MainClass() {
    footer.setTotalWidth(300);
    footer.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
    footer.addCell(new Phrase(new Chunk("First").setAction(new PdfAction(PdfAction.FIRSTPAGE))));
    footer.addCell(new Phrase(new Chunk("Prev").setAction(new PdfAction(PdfAction.PREVPAGE))));
    footer.addCell(new Phrase(new Chunk("Next").setAction(new PdfAction(PdfAction.NEXTPAGE))));
    footer.addCell(new Phrase(new Chunk("Last").setAction(new PdfAction(PdfAction.LASTPAGE))));
  }
  public void onEndPage(PdfWriter writer, Document document) {
    PdfContentByte cb = writer.getDirectContent();
    if (document.getPageNumber() > 1) {
      ColumnText.showTextAligned(cb, Element.ALIGN_CENTER, header, (document.right() - document
          .left())
          / 2 + document.leftMargin(), document.top() + 10, 0);
    }
    footer.writeSelectedRows(0, -1, (document.right() - document.left() - 300) / 2
        + document.leftMargin(), document.bottom() - 10, cb);
  }
  public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    writer.setViewerPreferences(PdfWriter.PageLayoutTwoColumnLeft);
    writer.setPageEvent(new MainClass());
    document.open();
    for (int k = 1; k <= 300; ++k) {
      document.add(new Phrase("test "));
    }
    document.close();
  }
}

Pdf events: on chapter, on chapter end, on section, on document Close Document

import java.io.FileOutputStream;
import com.lowagie.text.Chapter;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Font;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Section;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.tools.plugins.Concat;
public class MainClass extends PdfPageEventHelper {
  protected Document toc = new Document();
  public MainClass() throws Exception {
    PdfWriter.getInstance(toc, new FileOutputStream("toc.pdf"));
    toc.open();
  }
  public void onChapter(PdfWriter writer, Document document, float position, Paragraph title) {
    try {
      toc.add(new Paragraph(title.content() + " page " + document.getPageNumber()));
    } catch (DocumentException e) {
      e.printStackTrace();
    }
  }
  public void onChapterEnd(PdfWriter writer, Document document, float position) {
    try {
      toc.add(Chunk.NEWLINE);
    } catch (DocumentException e) {
      e.printStackTrace();
    }
  }
  public void onSection(PdfWriter writer, Document document, float position, int depth,
      Paragraph title) {
    try {
      switch (depth) {
      case 2:
        toc.add(new Paragraph(title.content(), new Font(Font.HELVETICA, 10)));
        break;
      default:
        toc.add(new Paragraph(title.content(), new Font(Font.HELVETICA, 8)));
      }
    } catch (DocumentException e) {
      e.printStackTrace();
    }
  }
  public void onCloseDocument(PdfWriter writer, Document document) {
    toc.close();
  }
  public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("chapter_events.pdf"));
    writer.setPageEvent(new MainClass());
    document.open();
    Paragraph hello = new Paragraph("hello");
    Chapter universe = new Chapter("asdf", 1);
    Section section;
    section = universe.addSection("World");
    section.add(hello);
    Section planets = universe.addSection("Planets");
    planets.add(hello);
    section = planets.addSection("to Venus:");
    section.add(hello);
    document.add(universe);
    Chapter people = new Chapter("People", 2);
    section = people.addSection("asasdf");
    section.add(hello);
    document.add(people);
    document.setPageSize(PageSize.A4.rotate());
    Chapter animals = new Chapter("3", 3);
    section = animals.addSection("section");
    section.add(hello);
    document.add(animals);
    document.close();
    String[] arguments = { "toc.pdf", "chapter_events.pdf", "toc_chapters.pdf" };
    Concat.main(arguments);
  }
}

Pdf Page Event Helper

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.ExceptionConverter;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfTemplate;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass extends PdfPageEventHelper {
  protected PdfTemplate total;
  protected BaseFont helv;
  public void onOpenDocument(PdfWriter writer, Document document) {
    total = writer.getDirectContent().createTemplate(100, 100);
    total.setBoundingBox(new Rectangle(-20, -20, 100, 100));
    try {
      helv = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED);
    } catch (Exception e) {
      throw new ExceptionConverter(e);
    }
  }
  public void onEndPage(PdfWriter writer, Document document) {
    PdfContentByte cb = writer.getDirectContent();
    cb.saveState();
    String text = "Page " + writer.getPageNumber() + " of ";
    cb.beginText();
    cb.setFontAndSize(helv, 12);
    cb.showText(text);
    cb.endText();
    cb.restoreState();
  }
  public void onCloseDocument(PdfWriter writer, Document document) {
    total.beginText();
    total.setFontAndSize(helv, 12);
    total.setTextMatrix(0, 0);
    total.showText(String.valueOf(writer.getPageNumber() - 1));
    total.endText();
  }
  public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    writer.setPageEvent(new MainClass());
    document.open();
    Paragraph p = new Paragraph();
    for (int k = 1; k <= 3000; ++k) {
      p.add(new Phrase("test"));
    }
    p.setAlignment(Element.ALIGN_JUSTIFIED);
    for (int k = 1; k <= 12; ++k) {
      document.add(p);
    }
    document.close();
  }
}

Set PageEvent to Pdf document

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.ColumnText;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass extends PdfPageEventHelper {
  BaseFont bf;
  public void onOpenDocument(PdfWriter arg0, Document arg1) {
    try {
      bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED);
    } catch (Exception e) {
      bf = null;
    }
  }
  public void onEndPage(PdfWriter writer, Document document) {
    PdfContentByte cb = writer.getDirectContent();
    cb.saveState();
    Rectangle pageSize = writer.getPageSize();
    Rectangle art = writer.getBoxSize("bleed");
    cb.rectangle(art.left(), art.bottom(), art.width(), art.height());
    cb.stroke();
    cb.setLineWidth(3);
    cb.restoreState();
  }
  public static void main(String[] args) throws Exception {
    Document document = new Document(new Rectangle(432, 792));
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    writer.setViewerPreferences(PdfWriter.PageLayoutTwoPageLeft);
    writer.setPageEvent(new MainClass());
    writer.setCropBoxSize(new Rectangle(5, 5, 427, 787));
    writer.setBoxSize("bleed", new Rectangle(30, 30, 402, 762));
    document.open();
    PdfContentByte cb = writer.getDirectContent();
    ColumnText ct = new ColumnText(cb);
    Paragraph p = new Paragraph();
    for (int i = 0; i < 10; i++) {
      p.add(new Phrase("test "));
    }
    for (int i = 0; i < 10; i++) {
      ct.addElement(p);
    }
    int status = ColumnText.NO_MORE_COLUMN;
    while (ColumnText.hasMoreText(status)) {
      ct.setSimpleColumn(72, 72, 360, 684);
      status = ct.go();
      document.newPage();
    }
    document.close();
  }
}

Transition and Duration

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Image;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfTransition;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass extends PdfPageEventHelper {
  protected PdfTransition transition;
  protected int duration;
  public MainClass(PdfTransition transition, int duration) {
    this.transition = transition;
    this.duration = duration;
  }
  public void setTransition(PdfTransition transition) {
    this.transition = transition;
  }
  public void setDuration(int duration) {
    this.duration = duration;
  }
  public void onStartPage(PdfWriter writer, Document document) {
    writer.setTransition(transition);
    writer.setDuration(duration);
  }
  public static void main(String[] args) throws Exception {
    Document document = new Document(new Rectangle(144, 115));
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    writer.setPdfVersion(PdfWriter.VERSION_1_5);
    writer.setViewerPreferences(PdfWriter.PageModeFullScreen);
    MainClass slideshow = new MainClass(new PdfTransition(PdfTransition.OUTBOX), 1);
    writer.setPageEvent(slideshow);
    document.open();
    Image img0 = Image.getInstance("0.gif");
    img0.setAbsolutePosition(0, 0);
    document.add(img0);
    document.newPage();
    Image img1 = Image.getInstance("1.gif");
    img1.setAbsolutePosition(0, 0);
    document.add(img1);
    document.newPage();
    document.close();
  }
}

Java Tutorial/PDF/Page Event

Содержание

extends PdfPageEventHelper

Pdf document footer

Pdf events: on chapter, on chapter end, on section, on document Close Document

Pdf Page Event Helper

Set PageEvent to Pdf document

Transition and Duration

Навигация

Персональные инструменты

Пространства имён

Варианты

Просмотры

Ещё

Поиск

Разделы

Навигация

Инструменты