| edu.hws.jcm.awt.InputObject
All known Subclasses: edu.hws.jcm.draw.DisplayCanvas, edu.hws.jcm.awt.VariableSlider, edu.hws.jcm.awt.VariableInput, edu.hws.jcm.awt.Controller, edu.hws.jcm.awt.ExpressionInput, edu.hws.jcm.draw.DraggablePoint, edu.hws.jcm.draw.CoordinateRect, edu.hws.jcm.awt.Animator, edu.hws.jcm.draw.MouseTracker, edu.hws.jcm.draw.LimitControlPanel,
| InputObject | | public interface InputObject extends java.io.Serializable(Code) | | An InputObject represents some sort of value that can be changed
by, for example, user interaction with a GUI element. The value can
actually change only when the checkInput() method is called. Generally,
an InputObject is a GUI element with an associated MathObject such as
a Variable or Expression. For example, a VariableInput is a text-input
box where the user can enter the value of a Variable. However, the
input is only checked and the value of the variable can only change
when the VariableInput's checkInput() method is called. The checkInput()
method is generally meant to be called by a Controller object. The
checkInput() method should throw a JCMError if an error occurs.
See the Controller class for more information.
author:
David Eck |
| Method Summary | |
| public void | checkInput()
Check and possibly change the value associated with this InputObject. | | public void | notifyControllerOnChange(Controller c)
This method was introduced to provide a common interface for setting
a Controller that is to be notified when there is a change in the
InputObject. |
| checkInput | | public void checkInput()(Code) | | Check and possibly change the value associated with this InputObject.
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| notifyControllerOnChange | | public void notifyControllerOnChange(Controller c)(Code) | | This method was introduced to provide a common interface for setting
a Controller that is to be notified when there is a change in the
InputObject. (This was introduced late in development, to be used
by edu.hws.jcm.awt.JCMPanel.gatherInputs(). In all the standard
classes that implement the InputObject interface, this method
simply calls a setOnChange or setOnUserAction method.)
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