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org.maloi.evolvo.gui
Class DoubleBoundedRangeModel  

java.lang.Object
  javax.swing.DefaultBoundedRangeModel
      org.maloi.evolvo.gui.DoubleBoundedRangeModel

All Implemented Interfaces:

javax.swing.BoundedRangeModel, java.io.Serializable

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class DoubleBoundedRangeModel

extends javax.swing.DefaultBoundedRangeModel

This class is an extension to DefaultBoundedRangeModel which allows the range to be over double-sized floating point numbers. In order to maintain the standard interface of BoundedRangeModel, this class stores numbers only to a desired precision. When one of the methods defined by the BoundedRangeModel interface are called, they return their expected value multiplied by 10^precision. There are also accessor methods to set and retrieve the actual floating point numbers. I chose to extend DefaultBoundedRangeModel rather than implementing BoundedRangeModel to avoid rewriting code for the event handlers. No need to reinvent the wheel...

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Field Summary
private  double	dblExtent           The actual extent.
private  double	dblMaximum           The actual upper boundary.
private  double	dblMinimum           The actual lower boundary.
private  int	multiplier           The multiplier used to convert between our actual (double) space and the integer space.
private  int	precision           Number of decimal places to keep precision to.

 

Fields inherited from class javax.swing.DefaultBoundedRangeModel

changeEvent, listenerList

 

Constructor Summary

DoubleBoundedRangeModel()           Default constructor.

DoubleBoundedRangeModel(double v, double e, double minimum, double maximum)           Constructor that takes all parameters except precision, which defaults to 10 decimal places.

DoubleBoundedRangeModel(double v, double e, double minimum, double maximum, int precision)           Constructor for which all values have been provided by the user.

 

Method Summary
private  void	doSetRangeProps(double v, double e, double minimum, double maximum, int p)           Changes the Set Range Properties.
double	getDoubleValue()           Returns the currently stored value as a double.
int	getMultiplier()           Returns the multiplier.
int	getPrecision()
void	setDoubleValue(double v)           Sets the value from a double.
void	setPrecision(int p)
void	setRangeProperties(double v, double e, double minimum, double maximum, int precision, boolean newValueIsAdjusting)           Changes the Set Range Properties, and fires events to alert listeners of the change.
java.lang.String	toString()           Creates a human readable String describing the range model.

 

Methods inherited from class javax.swing.DefaultBoundedRangeModel

addChangeListener, fireStateChanged, getChangeListeners, getExtent, getListeners, getMaximum, getMinimum, getValue, getValueIsAdjusting, removeChangeListener, setExtent, setMaximum, setMinimum, setRangeProperties, setValue, setValueIsAdjusting

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

dblMinimum

private double dblMinimum

The actual lower boundary.

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dblMaximum

private double dblMaximum

The actual upper boundary.

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dblExtent

private double dblExtent

The actual extent.

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multiplier

private int multiplier

The multiplier used to convert between our actual (double) space and the integer space.

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precision

private int precision

Number of decimal places to keep precision to.

Constructor Detail

DoubleBoundedRangeModel

public DoubleBoundedRangeModel()

Default constructor. Initializes the model with a min of 0, max of 1, value and extent of 0, and a precision of 10 decimal points.

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DoubleBoundedRangeModel

public DoubleBoundedRangeModel(double v,
                               double e,
                               double minimum,
                               double maximum)

Constructor that takes all parameters except precision, which defaults to 10 decimal places.

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DoubleBoundedRangeModel

public DoubleBoundedRangeModel(double v,
                               double e,
                               double minimum,
                               double maximum,
                               int precision)

Constructor for which all values have been provided by the user.

Method Detail

doSetRangeProps

private void doSetRangeProps(double v,
                             double e,
                             double minimum,
                             double maximum,
                             int p)

Changes the Set Range Properties. This involves ensuring that all ranges are valid, and that maximum >= minimum, minimum <= maximum, and minimum <= value <= (maximum - extent)

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setRangeProperties

public void setRangeProperties(double v,
                               double e,
                               double minimum,
                               double maximum,
                               int precision,
                               boolean newValueIsAdjusting)

Changes the Set Range Properties, and fires events to alert listeners of the change.

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toString

public java.lang.String toString()

Creates a human readable String describing the range model.

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getDoubleValue

public double getDoubleValue()

Returns the currently stored value as a double.

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setDoubleValue

public void setDoubleValue(double v)

Sets the value from a double.

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getMultiplier

public int getMultiplier()

Returns the multiplier.

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setPrecision

public void setPrecision(int p)

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getPrecision

public int getPrecision()

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