iText.Kernel.Pdf.Layer.PdfVisibilityExpression Class Reference

An array specifying a visibility expression, used to compute visibility of content based on a set of optional content groups. More...

Inheritance diagram for iText.Kernel.Pdf.Layer.PdfVisibilityExpression:

Public Member Functions
	PdfVisibilityExpression (PdfArray visibilityExpressionArray)
	Constructs a new PdfVisibilityExpression instance by its raw PdfArray. More...
	PdfVisibilityExpression (PdfName @operator)
	Creates a visibility expression. More...
virtual void	AddOperand (PdfLayer layer)
	Adds a new operand to the current visibility expression. More...
virtual void	AddOperand (iText.Kernel.Pdf.Layer.PdfVisibilityExpression expression)
	Adds a new opeand to the current visibility expression. More...
Public Member Functions inherited from iText.Kernel.Pdf.PdfObjectWrapper< PdfArray >
virtual T	GetPdfObject ()
virtual iText.Kernel.Pdf.PdfObjectWrapper< T >	MakeIndirect (PdfDocument document, PdfIndirectReference reference)
	Marks object behind wrapper to be saved as indirect. More...
virtual iText.Kernel.Pdf.PdfObjectWrapper< T >	MakeIndirect (PdfDocument document)
	Marks object behind wrapper to be saved as indirect. More...
virtual iText.Kernel.Pdf.PdfObjectWrapper< T >	SetModified ()
virtual void	Flush ()
virtual bool	IsFlushed ()

Package Functions
override bool	IsWrappedObjectMustBeIndirect ()
	Defines if the object behind this wrapper must be an indirect object in the resultant document. More...
Package Functions inherited from iText.Kernel.Pdf.PdfObjectWrapper< PdfArray >
	PdfObjectWrapper (T pdfObject)
virtual void	SetPdfObject (T pdfObject)
virtual void	SetForbidRelease ()
virtual void	UnsetForbidRelease ()
virtual void	EnsureUnderlyingObjectHasIndirectReference ()

Additional Inherited Members
Static Package Functions inherited from iText.Kernel.Pdf.PdfObjectWrapper< PdfArray >
static void	MarkObjectAsIndirect (PdfObject pdfObject)
static void	EnsureObjectIsAddedToDocument (PdfObject @object)
	Some wrappers use object's indirect reference to obtain the PdfDocument to which the object belongs to. More...

Detailed Description

An array specifying a visibility expression, used to compute visibility of content based on a set of optional content groups.

Constructor & Destructor Documentation

PdfVisibilityExpression() [1/2]

iText.Kernel.Pdf.Layer.PdfVisibilityExpression.PdfVisibilityExpression ( PdfArray  visibilityExpressionArray )

inline

Constructs a new PdfVisibilityExpression instance by its raw PdfArray.

Parameters

visibilityExpressionArray

the array representing the visibility expression

PdfVisibilityExpression() [2/2]

iText.Kernel.Pdf.Layer.PdfVisibilityExpression.PdfVisibilityExpression ( PdfName @  operator )

inline

Creates a visibility expression.

Parameters

operator

should be either PdfName::And, PdfName::Or, or PdfName::Not

Member Function Documentation

AddOperand() [1/2]

virtual void iText.Kernel.Pdf.Layer.PdfVisibilityExpression.AddOperand ( iText.Kernel.Pdf.Layer.PdfVisibilityExpression  expression )

inlinevirtual

Adds a new opeand to the current visibility expression.

Parameters

expression

the PdfVisibilityExpression instance operand to be added

AddOperand() [2/2]

virtual void iText.Kernel.Pdf.Layer.PdfVisibilityExpression.AddOperand ( PdfLayer  layer )

inlinevirtual

Adds a new operand to the current visibility expression.

Parameters

layer

the layer operand to be added.

IsWrappedObjectMustBeIndirect()

override bool iText.Kernel.Pdf.Layer.PdfVisibilityExpression.IsWrappedObjectMustBeIndirect ( )

inlinepackagevirtual

Defines if the object behind this wrapper must be an indirect object in the resultant document.

Defines if the object behind this wrapper must be an indirect object in the resultant document.

If this method returns true it doesn't necessarily mean that object must be in the indirect state at any moment, but rather defines that when the object will be written to the document it will be transformed into indirect object if it's not indirect yet.

Return value of this method shouldn't depend on any logic, it should return always true or false.

Returns

true if in the resultant document the object behind the wrapper must be indirect, otherwise false.

Implements iText.Kernel.Pdf.PdfObjectWrapper< PdfArray >.