com.lowagie.text.xml
Class SAXiTextHandler

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      com.lowagie.text.xml.SAXiTextHandler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

Direct Known Subclasses:

SAXmyHandler, SAXmyHtmlHandler

public class SAXiTextHandler
extends DefaultHandler

This class is a Handler that controls the iText XML to PDF conversion. Subclass it, if you want to change the way iText translates XML to PDF.

Field Summary

private BaseFont	bf
(package private) float	bottomMargin current margin of a page.
protected int	chapters Counts the number of chapters in this document.
protected boolean	controlOpenClose This is a flag that can be set, if you want to open and close the Document-object yourself.
protected Chunk	currentChunk This is the current chunk to which characters can be added.
protected DocListener	document This is the resulting document.
protected boolean	ignore This is the current chunk to which characters can be added.
(package private) float	leftMargin current margin of a page.
protected HashMap	myTags This hashmap contains all the custom keys and peers.
(package private) float	rightMargin current margin of a page.
protected Stack	stack This is a Stack of objects, waiting to be added to the document.
(package private) float	topMargin current margin of a page.

Constructor Summary

SAXiTextHandler(DocListener document)

SAXiTextHandler(DocListener document, HashMap myTags)

SAXiTextHandler(DocListener document, HtmlTagMap myTags)

SAXiTextHandler(DocListener document, HtmlTagMap myTags, BaseFont bf)

Method Summary

protected void	addImage(Image img)
void	characters(char[] ch, int start, int length) This method gets called when characters are encountered.
void	endElement(String uri, String lname, String name) This method gets called when an end tag is encountered.
void	handleEndingTags(String name) This method deals with the starting tags.
void	handleStartingTags(String name, Properties attributes) This method deals with the starting tags.
void	ignorableWhitespace(char[] ch, int start, int length) This method gets called when ignorable white space encountered.
protected boolean	isDocumentRoot(String tag) Checks if a certain tag corresponds with the roottag.
private boolean	isNewline(String tag) Checks if a certain tag corresponds with the newpage-tag.
private boolean	isNewpage(String tag) Checks if a certain tag corresponds with the newpage-tag.
void	setBaseFont(BaseFont bf) Sets the font that has to be used.
void	setControlOpenClose(boolean controlOpenClose) Sets the parameter that allows you to enable/disable the control over the Document.open() and Document.close() method.
void	startElement(String uri, String lname, String name, Attributes attrs) This method gets called when a start tag is encountered.

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, endPrefixMapping, error, fatalError, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

document

protected DocListener document

This is the resulting document.

stack

protected Stack stack

This is a Stack of objects, waiting to be added to the document.

chapters

protected int chapters

Counts the number of chapters in this document.

currentChunk

protected Chunk currentChunk

This is the current chunk to which characters can be added.

ignore

protected boolean ignore

This is the current chunk to which characters can be added.

controlOpenClose

protected boolean controlOpenClose

This is a flag that can be set, if you want to open and close the Document-object yourself.

topMargin

float topMargin

current margin of a page.

rightMargin

float rightMargin

current margin of a page.

leftMargin

float leftMargin

current margin of a page.

bottomMargin

float bottomMargin

current margin of a page.

myTags

protected HashMap myTags

This hashmap contains all the custom keys and peers.

bf

private BaseFont bf

Constructor Detail

SAXiTextHandler

public SAXiTextHandler(DocListener document)

Parameters:

document -

SAXiTextHandler

public SAXiTextHandler(DocListener document,
                       HtmlTagMap myTags)

Parameters:

document -

myTags -

SAXiTextHandler

public SAXiTextHandler(DocListener document,
                       HtmlTagMap myTags,
                       BaseFont bf)

Parameters:

document -

myTags -

bf -

SAXiTextHandler

public SAXiTextHandler(DocListener document,
                       HashMap myTags)

Parameters:

document -

myTags -

Method Detail

setControlOpenClose

public void setControlOpenClose(boolean controlOpenClose)

Sets the parameter that allows you to enable/disable the control over the Document.open() and Document.close() method.

If you set this parameter to true (= default), the parser will open the Document object when the start-root-tag is encountered and close it when the end-root-tag is met. If you set it to false, you have to open and close the Document object yourself.

Parameters:

controlOpenClose - set this to false if you plan to open/close the Document yourself

startElement

public void startElement(String uri,
                         String lname,
                         String name,
                         Attributes attrs)

This method gets called when a start tag is encountered.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Parameters:

uri - the Uniform Resource Identifier

lname - the local name (without prefix), or the empty string if Namespace processing is not being performed.

name - the name of the tag that is encountered

attrs - the list of attributes

handleStartingTags

public void handleStartingTags(String name,
                               Properties attributes)

This method deals with the starting tags.

Parameters:

name - the name of the tag

attributes - the list of attributes

addImage

protected void addImage(Image img)
                 throws EmptyStackException

Throws:

EmptyStackException

ignorableWhitespace

public void ignorableWhitespace(char[] ch,
                                int start,
                                int length)

This method gets called when ignorable white space encountered.

Specified by:

ignorableWhitespace in interface ContentHandler

Overrides:

ignorableWhitespace in class DefaultHandler

Parameters:

ch - an array of characters

start - the start position in the array

length - the number of characters to read from the array

characters

public void characters(char[] ch,
                       int start,
                       int length)

This method gets called when characters are encountered.

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Parameters:

ch - an array of characters

start - the start position in the array

length - the number of characters to read from the array

setBaseFont

public void setBaseFont(BaseFont bf)

Sets the font that has to be used.

Parameters:

bf -

endElement

public void endElement(String uri,
                       String lname,
                       String name)

This method gets called when an end tag is encountered.

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Parameters:

uri - the Uniform Resource Identifier

lname - the local name (without prefix), or the empty string if Namespace processing is not being performed.

name - the name of the tag that ends

handleEndingTags

public void handleEndingTags(String name)

This method deals with the starting tags.

Parameters:

name - the name of the tag

isNewpage

private boolean isNewpage(String tag)

Checks if a certain tag corresponds with the newpage-tag.

Parameters:

tag - a presumed tagname

Returns:

true or false

isNewline

private boolean isNewline(String tag)

Checks if a certain tag corresponds with the newpage-tag.

Parameters:

tag - a presumed tagname

Returns:

true or false

isDocumentRoot

protected boolean isDocumentRoot(String tag)

Checks if a certain tag corresponds with the roottag.

Parameters:

tag - a presumed tagname

Returns:

true if tag equals itext ,false otherwise.