Constructor Detail

• CustomStampAppearanceStreamGenerator

  CustomStampAppearanceStreamGenerator()

Method Detail

• addAppearanceStreamGenerator

   void addAppearanceStreamGenerator(@NonNull() String subject, @NonNull() AppearanceStreamGenerator appearanceStreamGenerator)

  Adds new appearance stream generator for stamp annotations with given subject. This overrides previously registered appearance stream generator for the subject.

  Parameters:

  subject - Subject of annotations that will use appearanceStreamGenerator to generate their AP stream.

  appearanceStreamGenerator - Appearance stream generator for the specified subject.

• removeAppearanceStreamGenerator

   void removeAppearanceStreamGenerator(@NonNull() String subject)

  Removes appearance stream generator for the given subject that was previously registered via addAppearanceStreamGenerator.

  Parameters:

  subject - Previously registered subject.

• getDataProviderForAnnotation

  @Nullable() DataProvider getDataProviderForAnnotation(@NonNull() Annotation annotation, @NonNull() EnumSet<AppearanceStreamGenerator.AppearanceStreamGenerationOptions> options)

  Called when the appearance stream data for the given annotation is needed.

  The data represented by the DataProvider must be a validly formed PDF. The contents of the first page of that PDF file will be embedded in the annotation as its appearance stream.

  Parameters:

  annotation - Annotation for which the AP stream is being generated.

  options - Enum set of AP stream generation options.

  Returns:

  DataProvider representing a validly formed PDF or null to use annotation's default AP stream.

• shouldUseGeneratorForAnnotation

   boolean shouldUseGeneratorForAnnotation(@NonNull() Annotation annotation)

  Asks the generator whether it should be used to generate the appearance stream for annotation.

  Parameters:

  annotation - Annotation for which the AP stream is being generated.