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Interface PdfPageEvent

All Known Implementing Classes:

FieldPositioningEvents, IndexEvents, PdfPageEventForwarder, PdfPageEventHelper

public interface PdfPageEvent

Allows a class to catch several document events.

Note: do not use Document.add() inside a page event.

Author:

Paulo Soares

Method Summary

Modifier and Type	Method and Description
void	onChapter(PdfWriter writer, Document document, float paragraphPosition, Paragraph title) Called when a Chapter is written.
void	onChapterEnd(PdfWriter writer, Document document, float paragraphPosition) Called when the end of a Chapter is reached.
void	onCloseDocument(PdfWriter writer, Document document) Called when the document is closed.
void	onEndPage(PdfWriter writer, Document document) Called when a page is finished, just before being written to the document.
void	onGenericTag(PdfWriter writer, Document document, Rectangle rect, String text) Called when a Chunk with a generic tag is written.
void	onOpenDocument(PdfWriter writer, Document document) Called when the document is opened.
void	onParagraph(PdfWriter writer, Document document, float paragraphPosition) Called when a Paragraph is written.
void	onParagraphEnd(PdfWriter writer, Document document, float paragraphPosition) Called when a Paragraph is written.
void	onSection(PdfWriter writer, Document document, float paragraphPosition, int depth, Paragraph title) Called when a Section is written.
void	onSectionEnd(PdfWriter writer, Document document, float paragraphPosition) Called when the end of a Section is reached.
void	onStartPage(PdfWriter writer, Document document) Called when a page is initialized.

Method Detail

onOpenDocument

void onOpenDocument(PdfWriter writer,
                    Document document)

Called when the document is opened.

Parameters:

writer - the PdfWriter for this document

document - the document

onStartPage

void onStartPage(PdfWriter writer,
                 Document document)

Called when a page is initialized.

Note that if even if a page is not written this method is still called. It is preferable to use onEndPage to avoid infinite loops.

Note that this method isn't called for the first page. You should apply modifications for the first page either before opening the document or by using the onOpenDocument() method.

Parameters:

writer - the PdfWriter for this document

document - the document

onEndPage

void onEndPage(PdfWriter writer,
               Document document)

Called when a page is finished, just before being written to the document.

Parameters:

writer - the PdfWriter for this document

document - the document

onCloseDocument

void onCloseDocument(PdfWriter writer,
                     Document document)

Called when the document is closed.

Note that this method is called with the page number equal to the last page plus one.

Parameters:

writer - the PdfWriter for this document

document - the document

onParagraph

void onParagraph(PdfWriter writer,
                 Document document,
                 float paragraphPosition)

Called when a Paragraph is written.

paragraphPosition will hold the height at which the paragraph will be written to. This is useful to insert bookmarks with more control.

Parameters:

writer - the PdfWriter for this document

document - the document

paragraphPosition - the position the paragraph will be written to

onParagraphEnd

void onParagraphEnd(PdfWriter writer,
                    Document document,
                    float paragraphPosition)

Called when a Paragraph is written.

paragraphPosition will hold the height of the end of the paragraph.

Parameters:

writer - the PdfWriter for this document

document - the document

paragraphPosition - the position of the end of the paragraph

onChapter

void onChapter(PdfWriter writer,
               Document document,
               float paragraphPosition,
               Paragraph title)

Called when a Chapter is written.

position will hold the height at which the chapter will be written to.

Parameters:

writer - the PdfWriter for this document

document - the document

paragraphPosition - the position the chapter will be written to

title - the title of the Chapter

onChapterEnd

void onChapterEnd(PdfWriter writer,
                  Document document,
                  float paragraphPosition)

Called when the end of a Chapter is reached.

position will hold the height of the end of the chapter.

Parameters:

writer - the PdfWriter for this document

document - the document

paragraphPosition - the position the chapter will be written to

onSection

void onSection(PdfWriter writer,
               Document document,
               float paragraphPosition,
               int depth,
               Paragraph title)

Called when a Section is written.

position will hold the height at which the section will be written to.

Parameters:

writer - the PdfWriter for this document

document - the document

paragraphPosition - the position the section will be written to

depth - the number depth of the section

title - the title of the section

onSectionEnd

void onSectionEnd(PdfWriter writer,
                  Document document,
                  float paragraphPosition)

Called when the end of a Section is reached.

position will hold the height of the section end.

Parameters:

writer - the PdfWriter for this document

document - the document

paragraphPosition - the position the section will be written to

onGenericTag

void onGenericTag(PdfWriter writer,
                  Document document,
                  Rectangle rect,
                  String text)

Called when a Chunk with a generic tag is written.

It is useful to pinpoint the Chunk location to generate bookmarks, for example.

Parameters:

writer - the PdfWriter for this document

document - the document

rect - the Rectangle containing the Chunk

text - the text of the tag