de.intarsys.pdf.app.appearance
Class NullAppearanceCreator

java.lang.Object
  de.intarsys.pdf.app.appearance.NullAppearanceCreator

All Implemented Interfaces:

IAppearanceCreator

public class NullAppearanceCreator
extends Object
implements IAppearanceCreator

Create an empty annotation appearance.

Constructor Summary

NullAppearanceCreator()

Method Summary

PDAppearance	createAppearance(PDAnnotation annotation, PDAppearance appearance) Create a PDAppearance suitable to display annotation in its current state.
COSName	getAnnotationType() The type of annotations this handler can process.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullAppearanceCreator

public NullAppearanceCreator()

Method Detail

createAppearance

public PDAppearance createAppearance(PDAnnotation annotation,
                                     PDAppearance appearance)

Description copied from interface: IAppearanceCreator

Create a PDAppearance suitable to display annotation in its current state. The implementation should use "appearance" when set, if not should try to use the annotations PDAppearance. If none of both is set, it should create a new one. The method should return the appearance it worked upon.

The code should NOT manipulate (write to) the annotation. If a new PDAppearance is to be created, it should be created and returned as the methods result without connecting to the annotation.

To allow for "daisy chaining" calls, a appearance parameter is provided. If it is null, the code should lookup the appearance in the annotation. If nothing there, it should create a new one (again: without connecting to the annotation).

Specified by:

createAppearance in interface IAppearanceCreator

Returns:

getAnnotationType

public COSName getAnnotationType()

Description copied from interface: IAppearanceCreator

The type of annotations this handler can process.

This is for example /Ink or /Circle.

Specified by:

getAnnotationType in interface IAppearanceCreator

Returns:

The type of annotations this handler can process.