nz.org.venice.chart.graph
Class MACDGraphUI

java.lang.Object
  nz.org.venice.chart.graph.MACDGraphUI

All Implemented Interfaces:

GraphUI

public class MACDGraphUI

extends java.lang.Object

implements GraphUI

The MACD graph user interface.

Author:

Andrew Leppard

See Also:

MACDGraph

Field Summary

static java.lang.String	EMA
static java.lang.String	SMA

Constructor Summary

MACDGraphUI(java.util.HashMap settings)
Create a new MACD user interface with the initial settings.

Method Summary

java.lang.String	checkSettings() Check the current settings displayed in the user interface.
java.lang.String	checkSettings(java.util.HashMap settings) Check previously set settings.
static java.lang.String	getAverageType(java.util.HashMap settings) Retrieve the average type (EMA or SMA) from the settings hashmap.
javax.swing.JPanel	getPanel() Return the user interface.
static int	getPeriodFirstAverage(java.util.HashMap settings) Retrieve the period of the first average from the settings hashmap.
static int	getPeriodSecondAverage(java.util.HashMap settings) Retrieve the period of the second average from the settings hashmap.
java.util.HashMap	getSettings() Return the current settings displayed in the user interface.
static double	getSmoothingConstantFirstAverage(java.util.HashMap settings) Retrieve the smoothing constant of the first average from the settings hashmap.
static double	getSmoothingConstantSecondAverage(java.util.HashMap settings) Retrieve the smoothing constant of the second average from the settings hashmap.
void	setSettings(java.util.HashMap settings) Display the given settings in the user interface.

Methods inherited from class java.lang.Object

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

Field Detail

SMA

public static final java.lang.String SMA

See Also:

Constant Field Values

EMA

public static final java.lang.String EMA

See Also:

Constant Field Values

Constructor Detail

MACDGraphUI

public MACDGraphUI(java.util.HashMap settings)

Create a new MACD user interface with the initial settings.

Parameters:

settings - the initial settings

Method Detail

checkSettings

public java.lang.String checkSettings()

Description copied from interface: GraphUI

Check the current settings displayed in the user interface. Return an error message if the settings are invalid.

Specified by:

checkSettings in interface GraphUI

Returns:

the error message or null if the settings are valid

checkSettings

public java.lang.String checkSettings(java.util.HashMap settings)

Description copied from interface: GraphUI

Check previously set settings. Return an error message if the settings are invalid.

Specified by:

checkSettings in interface GraphUI

Parameters:

settings - Previously saved settings

Returns:

the error message or null if the settings are valid

getSettings

public java.util.HashMap getSettings()

Description copied from interface: GraphUI

Return the current settings displayed in the user interface.

Specified by:

getSettings in interface GraphUI

Returns:

current settings

setSettings

public void setSettings(java.util.HashMap settings)

Description copied from interface: GraphUI

Display the given settings in the user interface.

Specified by:

setSettings in interface GraphUI

Parameters:

settings - the new settings

getPanel

public javax.swing.JPanel getPanel()

Description copied from interface: GraphUI

Return the user interface.

Specified by:

getPanel in interface GraphUI

Returns:

the user interface

getAverageType

public static java.lang.String getAverageType(java.util.HashMap settings)

Retrieve the average type (EMA or SMA) from the settings hashmap. If the hashmap is empty, then return the default average type (i.e. EMA).

Parameters:

settings - the settings

Returns:

the average type

getPeriodFirstAverage

public static int getPeriodFirstAverage(java.util.HashMap settings)

Retrieve the period of the first average from the settings hashmap. If the hashmap is empty, then return the default.

Parameters:

settings - the settings

Returns:

the period

getSmoothingConstantFirstAverage

public static double getSmoothingConstantFirstAverage(java.util.HashMap settings)

Retrieve the smoothing constant of the first average from the settings hashmap. If the hashmap is empty, then return the default smoothing constant.

Parameters:

settings - the settings

Returns:

the smoothign constant

getPeriodSecondAverage

public static int getPeriodSecondAverage(java.util.HashMap settings)

Retrieve the period of the second average from the settings hashmap. If the hashmap is empty, then return the default.

Parameters:

settings - the settings

Returns:

the period

getSmoothingConstantSecondAverage

public static double getSmoothingConstantSecondAverage(java.util.HashMap settings)

Retrieve the smoothing constant of the second average from the settings hashmap. If the hashmap is empty, then return the default smoothing constant.

Parameters:

settings - the settings

Returns:

the smoothign constant