Package sk.uniba.euromath.gene.image

A special type of Object source/result, that is capable of transferring images.

See:
Description

Interface Summary

ImageRef	Serves as a reference to an image; able to represent image in different ways.
ImageRefFactory	Used with the HOLDER_GRAPHICS holder; able to produce Drawable instances.

Class Summary

BufferedImageRef	Represents a buffered image.
ImageRefImpl	Implements the ImageRef interface.

Package sk.uniba.euromath.gene.image Description

A special type of Object source/result, that is capable of transferring images. Marked with the http://www.uniba.sk/euromath/holder/image namespace.

We could transfer the image in the java.awt.image.RenderedImage placeholder, however that would take too much memory and it would prevent us from transferring vector images. Therefore, this communication protocol is employed:

• The receiver exporter's/coordinator's offerObject() must return instance of ImageRefFactory factory, producing drawable canvases of desired dimension.
• Exporter-producer must take this factory and create ImageRef object with desired dimension.
• Producer will paint onto the Graphics2D provided by this ImageRef instance and return it encapsulated in the ObjectSource instance.
• Receiver will then receive ObjectSource containing ImageRef instance it has produced. It should process it as needed, and then dispose it if required.

There are two built-in exporters that takes this kind of source: the ImageToEpsExporter exporting ImageRef to a stream containing the postscript EPS file, and ImageToPngExporter exporting ImageRef to a stream containing a PNG file.

Maintainer: Martin Vysny