com.lowagie.text.pdf.parser

Class PdfContentStreamHandler

java.lang.Object

com.lowagie.text.pdf.parser.PdfContentStreamHandler

public class PdfContentStreamHandler
extends Object

Author:

dgd

Field Summary

Fields

Modifier and Type	Field and Description
Stack<GraphicsState>	gsStack Stack keeping track of the graphics state.
Map<String,ContentOperator>	operators A map with all supported operators operators (PDF syntax).
Matrix	textLineMatrix Text line matrix.
Matrix	textMatrix Text matrix.

Constructor Summary

Constructors

Constructor and Description
PdfContentStreamHandler(TextAssembler renderListener)

Method Summary

Modifier and Type	Method and Description
CMapAwareDocumentFont	getCurrentFont()
protected Matrix	getCurrentTextLineMatrix() Returns the current line matrix.
protected Matrix	getCurrentTextMatrix() Returns the current text matrix.
String	getResultantText()
protected void	installDefaultOperators() Loads all the supported graphics and text state operators in a map.
void	invokeOperator(PdfLiteral operator, ArrayList<PdfObject> operands, PdfDictionary resources) Invokes an operator.
ContentOperator	lookupOperator(String operatorName) Get the operator to process a command with a given name
void	registerContentOperator(ContentOperator operator) Registers a content operator that will be called when the specified operator string is encountered during content processing.
void	reset()

Methods inherited from class java.lang.Object

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

Field Detail

operators

public Map<String,ContentOperator> operators

A map with all supported operators operators (PDF syntax).

gsStack

public Stack<GraphicsState> gsStack

Stack keeping track of the graphics state.

textMatrix

public Matrix textMatrix

Text matrix.

textLineMatrix

public Matrix textLineMatrix

Text line matrix.

Constructor Detail

PdfContentStreamHandler

public PdfContentStreamHandler(TextAssembler renderListener)

Parameters:

renderListener -

Method Detail

registerContentOperator

public void registerContentOperator(ContentOperator operator)

Registers a content operator that will be called when the specified operator string is encountered during content processing. Each operator may be registered only once (it is not legal to have multiple operators with the same operatorString)

Parameters:

operator - the operator that will receive notification when the operator is encountered

Since:

2.1.7

installDefaultOperators

protected void installDefaultOperators()

Loads all the supported graphics and text state operators in a map.

lookupOperator

public ContentOperator lookupOperator(String operatorName)

Get the operator to process a command with a given name

Parameters:

operatorName - name of the operator that we might need to call

Returns:

the operator or null if none present

invokeOperator

public void invokeOperator(PdfLiteral operator,
                           ArrayList<PdfObject> operands,
                           PdfDictionary resources)

Invokes an operator.

Parameters:

operator - the PDF Syntax of the operator

operands - a list with operands

resources - Pdf Resources found in the file containing the stream.

reset

public void reset()

getCurrentTextMatrix

protected Matrix getCurrentTextMatrix()

Returns the current text matrix.

Returns:

the text matrix

Since:

2.1.5

getCurrentTextLineMatrix

protected Matrix getCurrentTextLineMatrix()

Returns the current line matrix.

Returns:

the line matrix

Since:

2.1.5

getCurrentFont

public CMapAwareDocumentFont getCurrentFont()

Returns:

current font in processing state

getResultantText

public String getResultantText()

Returns: