com.jidesoft.gauge
Class AbstractIndicatorRenderer<GaugeType extends AbstractGauge<?>>

java.lang.Object
  com.jidesoft.gauge.AbstractIndicatorRenderer<GaugeType>

All Implemented Interfaces:

IndicatorRenderer<GaugeType>

Direct Known Subclasses:

BarIndicatorRenderer, LineIndicatorRenderer, PointerIndicatorRenderer

public abstract class AbstractIndicatorRenderer<GaugeType extends AbstractGauge<?>>
extends Object
implements IndicatorRenderer<GaugeType>

Field Summary

protected Color	labelColor
protected Font	labelFont

Constructor Summary

protected

AbstractIndicatorRenderer()

Method Summary

protected abstract Shape	calculateShape(GaugeType gauge, Double value) Calculates the shape of the indicator.
protected abstract void	drawIndicator(Graphics2D g, GaugeType gauge, Shape shape, IndicatorStyle style)
protected String	generateLabel(Double value)
Color	getLabelColor()
NumberLabeler<Double>	getLabeler() Returns the labeler that generates a string to be used as a label for the indicator
Font	getLabelFont()
String	getLabelText() Returns the fixed label text specified with setLabelText()
ShadowRenderer	getShadowRenderer()
Shape	paintIndicator(Graphics2D g, GaugeType gauge, Double value, IndicatorStyle style)
abstract void	paintLabel(Graphics2D g, GaugeType gauge, Double value, IndicatorStyle style)
void	setLabelColor(Color labelColor)
void	setLabeler(NumberLabeler<Double> labeler) Specify a labeler that can be used to dynamically generate the string for the label, usually based on the value of the indicator.
void	setLabelFont(Font labelFont)
void	setLabelText(String labelText) Use this method to specify a static value for the text of the label.
void	setShadowRenderer(ShadowRenderer shadowRenderer)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jidesoft.gauge.IndicatorRenderer

paintLegendItem

Field Detail

labelFont

protected Font labelFont

labelColor

protected Color labelColor

Constructor Detail

AbstractIndicatorRenderer

protected AbstractIndicatorRenderer()

Method Detail

getShadowRenderer

public ShadowRenderer getShadowRenderer()

setShadowRenderer

public void setShadowRenderer(ShadowRenderer shadowRenderer)

getLabeler

public NumberLabeler<Double> getLabeler()

Returns the labeler that generates a string to be used as a label for the indicator

Returns:

the labeler that generates a string to be used as a label for the indicator

setLabeler

public void setLabeler(NumberLabeler<Double> labeler)

Specify a labeler that can be used to dynamically generate the string for the label, usually based on the value of the indicator.

Parameters:

labeler - the labeler that converts a numeric value into a string for display as the label

getLabelText

public String getLabelText()

Returns the fixed label text specified with setLabelText()

Returns:

the fixed string specified as a label for the indicator

setLabelText

public void setLabelText(String labelText)

Use this method to specify a static value for the text of the label. Note that if a labeler is specified in addition to a labelText, the labeler will be used to generate the text value in preference to any fixed text value specified here.

Parameters:

labelText - the fixed label text

generateLabel

protected String generateLabel(Double value)

getLabelFont

public Font getLabelFont()

setLabelFont

public void setLabelFont(Font labelFont)

getLabelColor

public Color getLabelColor()

setLabelColor

public void setLabelColor(Color labelColor)

paintIndicator

public Shape paintIndicator(Graphics2D g,
                            GaugeType gauge,
                            Double value,
                            IndicatorStyle style)

Specified by:

paintIndicator in interface IndicatorRenderer<GaugeType extends AbstractGauge<?>>

paintLabel

public abstract void paintLabel(Graphics2D g,
                                GaugeType gauge,
                                Double value,
                                IndicatorStyle style)

drawIndicator

protected abstract void drawIndicator(Graphics2D g,
                                      GaugeType gauge,
                                      Shape shape,
                                      IndicatorStyle style)

calculateShape

protected abstract Shape calculateShape(GaugeType gauge,
                                        Double value)

Calculates the shape of the indicator. This is needed so that we can create a BufferedImage of the right size when generating shadows

Parameters:

gauge - the gauge, such as an instance of Bullet

value - the value to be represented by the indicator