com.jidesoft.chart.render
Class SimplePieLabelRenderer

java.lang.Object
  com.jidesoft.chart.render.AbstractPieLabelRenderer
      com.jidesoft.chart.render.SimplePieLabelRenderer

All Implemented Interfaces:

PieLabelRenderer, PieLabelRenderer2D

public class SimplePieLabelRenderer
extends AbstractPieLabelRenderer
implements PieLabelRenderer2D

A pie label renderer that displays only the text to render the pie segment. The text may be contained in a box, for which you can specify the background colour and outline colour (if any).

Field Summary

static String	PROPERTY_BACKGROUND
static String	PROPERTY_FOREGROUND
static String	PROPERTY_OUTLINE_COLOR
static String	PROPERTY_POINT_LABELER
static String	PROPERTY_RADIUS_PROPORTION

Constructor Summary

SimplePieLabelRenderer()
Default zero-args constructor to create a SimplePieLabelRenderer

Method Summary

void	addPropertyChangeListener(PropertyChangeListener listener) Register interest in property changes
protected Color	createBackground(Chart chart, ChartModel model, Chartable p)
protected Color	createLabelColor(Chart chart, ChartModel model, Chartable p)
protected Font	createLabelFont(Chart chart, ChartModel model, Chartable p)
protected Color	createOutlineColor(Chart chart, ChartModel model, Chartable p)
Color	getBackground()
Color	getForeground() Deprecated. Use getLabelColor instead
Color	getOutlineColor()
Stroke	getOutlineStroke()
PointLabeler	getPointLabeler()
double	getRadiusProportion()
int	getTickLength()
void	removePropertyChangeListener(PropertyChangeListener listener) De-register interest in property changes
void	renderLabels(Graphics2D g, Chart chart, ChartModel model, Point2D center, double width, double height, float[] angles, ChartStyle style) Render the labels to the supplied graphics context
void	renderLabels(Graphics g, Chart chart, ChartModel model, Point center, int width, int height, int[] angles, ChartStyle style) Render the labels to the supplied graphics context
void	setBackground(Color background) Specify the background color used for the label.
void	setForeground(Color foreground) Deprecated. Use setLabelColor instead
void	setOutlineColor(Color outlineColor) Specify the outline color painted around the text box.
void	setOutlineStroke(Stroke outlineStroke)
void	setPointLabeler(PointLabeler pointLabeler) Set the object responsible for specifying what the labels should say
void	setRadiusProportion(double radiusProportion) Specify the distance of the label from the centre of the pie, as a proportion of the radius.
void	setTickLength(int tickLength) This label renderer does not support a tick length

Methods inherited from class com.jidesoft.chart.render.AbstractPieLabelRenderer

getLabelColor, getLabelFont, setLabelColor, setLabelFont

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_RADIUS_PROPORTION

public static final String PROPERTY_RADIUS_PROPORTION

See Also:

Constant Field Values

PROPERTY_POINT_LABELER

public static final String PROPERTY_POINT_LABELER

See Also:

Constant Field Values

PROPERTY_OUTLINE_COLOR

public static final String PROPERTY_OUTLINE_COLOR

See Also:

Constant Field Values

PROPERTY_BACKGROUND

public static final String PROPERTY_BACKGROUND

See Also:

Constant Field Values

PROPERTY_FOREGROUND

public static final String PROPERTY_FOREGROUND

See Also:

Constant Field Values

Constructor Detail

SimplePieLabelRenderer

public SimplePieLabelRenderer()

Default zero-args constructor to create a SimplePieLabelRenderer

Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

Register interest in property changes

Parameters:

listener - the PropertyChangeListener that will receive notification

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

De-register interest in property changes

Parameters:

listener - the PropertyChangeListener that will no longer receive notification

getRadiusProportion

public double getRadiusProportion()

Returns:

the location of labels as a proportion of the radius of the pie

setRadiusProportion

public void setRadiusProportion(double radiusProportion)

Specify the distance of the label from the centre of the pie, as a proportion of the radius. Therefore 0 is at the centre and 1.0 is on the circumference of the pie. The default value is 0.85.

Parameters:

radiusProportion - the location of the label as a proportion of the radius of the pie.

getPointLabeler

public PointLabeler getPointLabeler()

Specified by:

getPointLabeler in interface PieLabelRenderer

Returns:

the point labeler, which is responsible for specifying what the labels should say

getBackground

public Color getBackground()

Returns:

the background color used for the label

setBackground

public void setBackground(Color background)

Specify the background color used for the label. If set to null, no background color is used so the label is painted straight onto the chart

Parameters:

background - the new background color

createBackground

protected Color createBackground(Chart chart,
                                 ChartModel model,
                                 Chartable p)

getForeground

public Color getForeground()

Deprecated. Use getLabelColor instead

Returns the label color

Returns:

the foreground color used for the label

setForeground

public void setForeground(Color foreground)

Deprecated. Use setLabelColor instead

Specify the foreground color used for the label; that is, the color of the text. If set to null, the label will not be painted.

Parameters:

foreground - the new foreground color

createLabelColor

protected Color createLabelColor(Chart chart,
                                 ChartModel model,
                                 Chartable p)

createLabelFont

protected Font createLabelFont(Chart chart,
                               ChartModel model,
                               Chartable p)

getOutlineColor

public Color getOutlineColor()

Returns:

the outline color used for painting around the text box of a label

setOutlineColor

public void setOutlineColor(Color outlineColor)

Specify the outline color painted around the text box. If set to null, no outline will be painted

Parameters:

outlineColor - the outline color

createOutlineColor

protected Color createOutlineColor(Chart chart,
                                   ChartModel model,
                                   Chartable p)

getOutlineStroke

public Stroke getOutlineStroke()

setOutlineStroke

public void setOutlineStroke(Stroke outlineStroke)

setPointLabeler

public void setPointLabeler(PointLabeler pointLabeler)

Set the object responsible for specifying what the labels should say

Specified by:

setPointLabeler in interface PieLabelRenderer

getTickLength

public int getTickLength()

Specified by:

getTickLength in interface PieLabelRenderer

Returns:

This always returns 0

setTickLength

public void setTickLength(int tickLength)

This label renderer does not support a tick length

Specified by:

setTickLength in interface PieLabelRenderer

Parameters:

tickLength - the length of the ticks in pixels

renderLabels

public void renderLabels(Graphics g,
                         Chart chart,
                         ChartModel model,
                         Point center,
                         int width,
                         int height,
                         int[] angles,
                         ChartStyle style)

Render the labels to the supplied graphics context

Specified by:

renderLabels in interface PieLabelRenderer

Parameters:

g - the graphics context

chart - the chart to render

model - the model from which the points come

center - the center of the pie

width - the width of the pie

height - the height of the pie

angles - the angles to use for the segments of the pie

style - the chart style to use for displaying the segments

renderLabels

public void renderLabels(Graphics2D g,
                         Chart chart,
                         ChartModel model,
                         Point2D center,
                         double width,
                         double height,
                         float[] angles,
                         ChartStyle style)

Description copied from interface: PieLabelRenderer2D

Render the labels to the supplied graphics context

Specified by:

renderLabels in interface PieLabelRenderer2D

Parameters:

g - the graphics context

chart - the chart to render

model - the model from which the points come

center - the center of the pie

width - the width of the pie

height - the height of the pie

angles - the angles to use for the segments of the pie

style - the chart style to use for displaying the segments