Admin: 1 версия

2010-06-01T05:21:13Z

1 версия

в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== extends PdfPageEventHelper ==



<source lang="java">
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);
}
}
}</source>



== Pdf document footer ==



<source lang="java">
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();
}
}</source>



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



<source lang="java">
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);
}
}</source>



== Pdf Page Event Helper ==



<source lang="java">
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();
}
}</source>



== Set PageEvent to Pdf document ==



<source lang="java">
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();
}
}</source>



== Transition and Duration ==



<source lang="java">
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();
}
}</source>

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Admin: 1 версия

в 17:44, 31 мая 2010