Package org.apache.pdfbox.preflight.process.reflect

Class ExtGStateValidationProcess

java.lang.Object

org.apache.pdfbox.preflight.process.AbstractProcess

org.apache.pdfbox.preflight.process.reflect.ExtGStateValidationProcess

All Implemented Interfaces:

ValidationProcess

public class ExtGStateValidationProcess
extends AbstractProcess

Constructor Summary

Constructors

Constructor	Description
ExtGStateValidationProcess()

Method Summary

Modifier and Type	Method	Description
private void	checkBlendMode(PreflightContext context, COSDictionary egs)	This method checks the BM value of the ExtGState dictionary.
private void	checkFont(PreflightContext context, COSDictionary egs)	This method checks a Font array in the ExtGState dictionary.
private void	checkLowerCA(PreflightContext context, COSDictionary egs)	This method checks the "ca" value of the ExtGState dictionary.
private void	checkSoftMask(PreflightContext context, COSDictionary egs)	This method checks the SMask value of the ExtGState dictionary.
protected void	checkTR2Key(PreflightContext context, COSDictionary egs)	Check the TR2 entry.
protected void	checkTRKey(PreflightContext context, COSDictionary egs)	Check the TR entry.
private void	checkUpperCA(PreflightContext context, COSDictionary egs)	This method checks the "CA" value of the ExtGState dictionary.
java.util.List<COSDictionary>	extractExtGStateDictionaries(COSDictionary extGStates)	Create a list of ExtGState dictionaries using the given Resource dictionary and the COSDocument.
void	validate(PreflightContext context)	Validate the ExtGState dictionaries.
protected void	validateFonts(PreflightContext context, java.util.List<COSDictionary> listOfExtGState)	Validate fonts in all ExtGState dictionaries of this container.
protected void	validateTransparencyRules(PreflightContext context, java.util.List<COSDictionary> listOfExtGState)	Validate transparency rules in all ExtGState dictionaries of this container.

Methods inherited from class org.apache.pdfbox.preflight.process.AbstractProcess

addFontError, addValidationError, addValidationErrors

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtGStateValidationProcess

public ExtGStateValidationProcess()

Method Detail

validate

public void validate(PreflightContext context)
              throws ValidationException

Validate the ExtGState dictionaries.

Parameters:

context - the context which contains the Resource dictionary.

Throws:

ValidationException - thrown if an Extended Graphic State isn't valid.

extractExtGStateDictionaries

public java.util.List<COSDictionary> extractExtGStateDictionaries(COSDictionary extGStates)
                                                           throws ValidationException

Create a list of ExtGState dictionaries using the given Resource dictionary and the COSDocument.

Parameters:

extGStates - a resource COSDictionary.

Returns:

the list of ExtGState dictionaries.

Throws:

ValidationException - thrown if an Extended Graphic State isn't valid.

validateTransparencyRules

protected void validateTransparencyRules(PreflightContext context,
                                         java.util.List<COSDictionary> listOfExtGState)

Validate transparency rules in all ExtGState dictionaries of this container.

Parameters:

context - the preflight context.

listOfExtGState - a list of ExtGState COSDictionaries.

validateFonts

protected void validateFonts(PreflightContext context,
                             java.util.List<COSDictionary> listOfExtGState)
                      throws ValidationException

Validate fonts in all ExtGState dictionaries of this container.

Parameters:

context - the preflight context.

listOfExtGState - a list of ExtGState COSDictionaries.

Throws:

ValidationException

checkFont

private void checkFont(PreflightContext context,
                       COSDictionary egs)
                throws ValidationException

This method checks a Font array in the ExtGState dictionary.

Parameters:

context - the preflight context.

egs - the Graphic state to check

Throws:

ValidationException

checkSoftMask

private void checkSoftMask(PreflightContext context,
                           COSDictionary egs)

This method checks the SMask value of the ExtGState dictionary. The Soft Mask is optional but must be "None" if it is present.

Parameters:

context - the preflight context.

egs - the Graphic state to check

checkBlendMode

private void checkBlendMode(PreflightContext context,
                            COSDictionary egs)

This method checks the BM value of the ExtGState dictionary. The Blend Mode is optional but must be "Normal" or "Compatible" if it is present.

Parameters:

context - the preflight context * @param egs the graphic state to check

checkUpperCA

private void checkUpperCA(PreflightContext context,
                          COSDictionary egs)

This method checks the "CA" value of the ExtGState dictionary. It is optional but must be 1.0 if present.

Parameters:

context - the preflight context.

egs - the graphic state to check

checkLowerCA

private void checkLowerCA(PreflightContext context,
                          COSDictionary egs)

This method checks the "ca" value of the ExtGState dictionary. It is optional but must be 1.0 if present.

Parameters:

context - the preflight context.

egs - the graphic state to check

checkTRKey

protected void checkTRKey(PreflightContext context,
                          COSDictionary egs)

Check the TR entry. A valid ExtGState hasn't TR entry.

Parameters:

context - the preflight context

egs - the graphic state to check

checkTR2Key

protected void checkTR2Key(PreflightContext context,
                           COSDictionary egs)

Check the TR2 entry. A valid ExtGState hasn't TR2 entry or a TR2 entry equals to "default".

Parameters:

context - the preflight context

egs - the graphic state to check