iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser Class Reference

Parses the page or form XObject content. More...

Public Member Functions
	PdfCanvasParser (PdfTokenizer tokeniser)
	Creates a new instance of PdfContentParser More...
	PdfCanvasParser (PdfTokenizer tokeniser, PdfResources currentResources)
	Creates a new instance of PdfContentParser More...
virtual IList< PdfObject >	Parse (IList< PdfObject > ls)
	Parses a single command from the content. More...
virtual PdfTokenizer	GetTokeniser ()
	Gets the tokeniser. More...
virtual void	SetTokeniser (PdfTokenizer tokeniser)
	Sets the tokeniser. More...
virtual PdfDictionary	ReadDictionary ()
	Reads a dictionary. More...
virtual PdfArray	ReadArray ()
	Reads an array. More...
virtual PdfObject	ReadObject ()
	Reads a pdf object. More...
virtual bool	NextValidToken ()
	Reads the next token skipping over the comments. More...

Detailed Description

Parses the page or form XObject content.

Paulo Soares

Constructor & Destructor Documentation

PdfCanvasParser() [1/2]

iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.PdfCanvasParser ( PdfTokenizer  tokeniser )

inline

Creates a new instance of PdfContentParser

Parameters

tokeniser

the tokeniser with the content

PdfCanvasParser() [2/2]

iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.PdfCanvasParser ( PdfTokenizer  tokeniser, PdfResources  currentResources  )

inline

Creates a new instance of PdfContentParser

Parameters

tokeniser	the tokeniser with the content
currentResources	current resources of the content stream. It is optional parameter, which is used for performance improvements of specific cases of inline images parsing.

Member Function Documentation

GetTokeniser()

virtual PdfTokenizer iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.GetTokeniser ( )

inlinevirtual

Gets the tokeniser.

Returns

the tokeniser.

NextValidToken()

virtual bool iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.NextValidToken ( )

inlinevirtual

Reads the next token skipping over the comments.

Returns

true if a token was read, false if the end of content was reached

Parse()

virtual IList<PdfObject> iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.Parse ( IList< PdfObject >  ls )

inlinevirtual

Parses a single command from the content.

Parses a single command from the content. Each command is output as an array of arguments having the command itself as the last element. The returned array will be empty if the end of content was reached.
A specific behaviour occurs when inline image is encountered (BI command): in that case, parser would continue parsing until it meets EI - end of the inline image; as a result in this case it will return an array with inline image dictionary and image bytes encapsulated in PdfStream object as first element and EI command as second element.

Parameters

ls	an ArrayList to use. It will be cleared before using. If it's null will create a new ArrayList

Returns

the same ArrayList given as argument or a new one

ReadArray()

virtual PdfArray iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.ReadArray ( )

inlinevirtual

Reads an array.

Reads an array. The tokeniser must be positioned past the "[" token.

Returns

an array

ReadDictionary()

virtual PdfDictionary iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.ReadDictionary ( )

inlinevirtual

Reads a dictionary.

Reads a dictionary. The tokeniser must be positioned past the "<<" token.

Returns

the dictionary

ReadObject()

virtual PdfObject iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.ReadObject ( )

inlinevirtual

Reads a pdf object.

Returns

the pdf object

SetTokeniser()

virtual void iText.Kernel.Pdf.Canvas.Parser.Util.PdfCanvasParser.SetTokeniser ( PdfTokenizer  tokeniser )

inlinevirtual

Sets the tokeniser.

Parameters

tokeniser

the tokeniser