jscicalc.graph.AxisDialog.FieldFocusListener Class Reference

Focus listener for numerical text fields. More...

List of all members.

Public Member Functions
void	focusGained (java.awt.event.FocusEvent focusEvent)
	The focus was gained.
void	focusLost (java.awt.event.FocusEvent focusEvent)
	The focus was lost.
Package Functions
	FieldFocusListener (javax.swing.JTextField textField, boolean positive)
	the constructor needs two pieced of information.
Private Attributes
javax.swing.JTextField	textField
	The text field.
boolean	positive
	This value should be true if the number must be positive, false otherwise.

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Detailed Description

Focus listener for numerical text fields.

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Constructor & Destructor Documentation

jscicalc.graph.AxisDialog.FieldFocusListener.FieldFocusListener	(	javax.swing.JTextField	textField,
		boolean	positive
	)			[package]

the constructor needs two pieced of information.

It needs to know the text field that that is attached to this so that it can return the focus. It also needs to know if the field can be nonpositive. Major and minor units are required to be positive.

Parameters:

	textField	The text field
	positive	Set to true to restrict values to positive integers.

References jscicalc.graph.AxisDialog.FieldFocusListener.textField.

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Member Function Documentation

void jscicalc.graph.AxisDialog.FieldFocusListener.focusGained

(

java.awt.event.FocusEvent

focusEvent

)

The focus was gained.

Do nothing. This is required by the interface.

Parameters:

focusEvent

The event

void jscicalc.graph.AxisDialog.FieldFocusListener.focusLost

(

java.awt.event.FocusEvent

focusEvent

)

The focus was lost.

Check the input and return focus if it is not valid.

Parameters:

focusEvent

The event

References jscicalc.graph.AxisDialog.FieldFocusListener.positive, and jscicalc.graph.AxisDialog.FieldFocusListener.textField.

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Member Data Documentation

javax.swing.JTextField jscicalc.graph.AxisDialog.FieldFocusListener.textField [private]

The text field.

Referenced by jscicalc.graph.AxisDialog.FieldFocusListener.FieldFocusListener(), and jscicalc.graph.AxisDialog.FieldFocusListener.focusLost().

boolean jscicalc.graph.AxisDialog.FieldFocusListener.positive [private]

This value should be true if the number must be positive, false otherwise.

Referenced by jscicalc.graph.AxisDialog.FieldFocusListener.focusLost().

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The documentation for this class was generated from the following file:

• AxisDialog.java