lt.monarch.chart.mapper
Class NullAxisMapper

java.lang.Object
  lt.monarch.chart.mapper.NullAxisMapper

All Implemented Interfaces:

java.io.Serializable, AxisMapper

public class NullAxisMapper
extends java.lang.Object
implements AxisMapper

Dummy Axis mapper, which just passes through all numeric values.

See Also:

Serialized Form

Constructor and Description

NullAxisMapper()

Method Summary

Modifier and Type	Method and Description
void	addListener(AxisMapperListener listener) Dummy implementation - does nothing.
java.lang.String	formatKey(java.lang.Object key) Dummy implementation - returns empty string.
double	getPreferredHeight(AbstractGraphics g, AbstractTextPainter textPainter) Gets preferred height.
double	getPreferredWidth(AbstractGraphics g, AbstractTextPainter textPainter) Gets preferred width.
AxisMapperRange	getProjectionRange() Gets axis projection range.
AxisScale	getScale() Dummy implementation - returns null.
AxisMapperRange	getViewRange() Gets an AxisMapperRange object representing visible axis range.
double	map(java.lang.Object key) Dummy implementation - casts the key to Number and returns it's double value.
java.lang.Object	mapBack(double pos) Dummy implementation - returns null.
void	removeListener(AxisMapperListener listener) Dummy implementation - does nothing.
void	setProjectionRange(double min, double max) Sets axis projection range.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullAxisMapper

public NullAxisMapper()

Method Detail

addListener

public void addListener(AxisMapperListener listener)

Dummy implementation - does nothing.

Specified by:

addListener in interface AxisMapper

Parameters:

listener - the axis mapper listener

removeListener

public void removeListener(AxisMapperListener listener)

Dummy implementation - does nothing.

Specified by:

removeListener in interface AxisMapper

Parameters:

listener - the axis mapper listener

getScale

public AxisScale getScale()

Dummy implementation - returns null.

Specified by:

getScale in interface AxisMapper

Returns:

null

map

public double map(java.lang.Object key)

Dummy implementation - casts the key to Number and returns it's double value.

Specified by:

map in interface AxisMapper

Parameters:

key - the key to map

Returns:

double value of the key

mapBack

public java.lang.Object mapBack(double pos)

Dummy implementation - returns null.

Specified by:

mapBack in interface AxisMapper

Parameters:

pos - position on mapping range

Returns:

null

formatKey

public java.lang.String formatKey(java.lang.Object key)

Dummy implementation - returns empty string.

Specified by:

formatKey in interface AxisMapper

Parameters:

key - the key to format

Returns:

empty string

setProjectionRange

public void setProjectionRange(double min,
                               double max)

Sets axis projection range.

Specified by:

setProjectionRange in interface AxisMapper

Parameters:

min - range minimum in range [0,1]

max - range maximum in range [0,1]

getProjectionRange

public AxisMapperRange getProjectionRange()

Gets axis projection range.

Specified by:

getProjectionRange in interface AxisMapper

Returns:

mapper projection range

getViewRange

public AxisMapperRange getViewRange()

Description copied from interface: AxisMapper

Gets an AxisMapperRange object representing visible axis range. The object can be used to set visible axis range. Returns normalized value from [0..1]

Specified by:

getViewRange in interface AxisMapper

Returns:

AxisMapperRange object representing visible axis range

getPreferredHeight

public double getPreferredHeight(AbstractGraphics g,
                                 AbstractTextPainter textPainter)

Description copied from interface: AxisMapper

Gets preferred height.

Specified by:

getPreferredHeight in interface AxisMapper

Parameters:

g - graphics context

textPainter - text painter mode

Returns:

preferred height

getPreferredWidth

public double getPreferredWidth(AbstractGraphics g,
                                AbstractTextPainter textPainter)

Description copied from interface: AxisMapper

Gets preferred width.

Specified by:

getPreferredWidth in interface AxisMapper

Parameters:

g - graphics context

textPainter - text painter mode

Returns:

preferred width