javax.imageio

Interface IIOParamController

public interface IIOParamController

An interface to set image parameters. An IIOParamController may be a GUI component, a database reader, command-line parser or any other means of getting parameter settings. For exampe, a dialog box could implement IIOParamController to allow a user to adjust JPEG compression levels. The activate method should always behave modally; it should only return when the action has been either cancelled or completed.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	activate(IIOParam param) Activates the controller.

Method Detail

activate

boolean activate(IIOParam param)

Activates the controller. A return value of false should mean that no changes were made to param. A return value of true should mean that the image is ready to be read or written.

Parameters:

param - the IIOParam to be modified

Returns:

true if the IIOParam has been modified, false otherwise

Throws:

java.lang.IllegalArgumentException - if param is null or is not an instance of the correct class