Package org.jfree.chart.renderer.xy

Class AbstractXYItemRenderer

java.lang.Object

org.jfree.chart.renderer.AbstractRenderer

org.jfree.chart.renderer.xy.AbstractXYItemRenderer

All Implemented Interfaces:

Serializable, Cloneable, EventListener, AnnotationChangeListener, LegendItemSource, XYItemRenderer

Direct Known Subclasses:

CandlestickRenderer, HighLowRenderer, SamplingXYLineRenderer, StandardXYItemRenderer, VectorRenderer, WindItemRenderer, XYAreaRenderer, XYAreaRenderer2, XYBarRenderer, XYBlockRenderer, XYBoxAndWhiskerRenderer, XYBubbleRenderer, XYDifferenceRenderer, XYDotRenderer, XYLineAndShapeRenderer, XYShapeRenderer, XYStepAreaRenderer, YIntervalRenderer

public abstract class AbstractXYItemRenderer
extends AbstractRenderer
implements XYItemRenderer, AnnotationChangeListener, Cloneable, Serializable

A base class that can be used to create new XYItemRenderer implementations.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.jfree.chart.renderer.AbstractRenderer

DEFAULT_ITEM_LABEL_INSETS, DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, DEFAULT_PAINT, DEFAULT_SHAPE, DEFAULT_STROKE, DEFAULT_VALUE_LABEL_FONT, DEFAULT_VALUE_LABEL_PAINT, ZERO

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractXYItemRenderer()	Creates a renderer where the tooltip generator and the URL generator are both null.

Method Summary

Modifier and Type	Method	Description
void	addAnnotation(XYAnnotation annotation)	Adds an annotation and sends a RendererChangeEvent to all registered listeners.
void	addAnnotation(XYAnnotation annotation, Layer layer)	Adds an annotation to the specified layer and sends a RendererChangeEvent to all registered listeners.
protected void	addEntity(EntityCollection entities, Shape hotspot, XYDataset dataset, int series, int item, double entityX, double entityY)	Adds an entity to the collection.
void	annotationChanged(AnnotationChangeEvent event)	Receives notification of a change to an Annotation added to this renderer.
protected void	beginElementGroup(Graphics2D g2, Comparable seriesKey, int itemIndex)	Adds a KEY_BEGIN_ELEMENT hint to the graphics target.
protected Point2D	calculateDomainMarkerTextAnchorPoint(Graphics2D g2, PlotOrientation orientation, Rectangle2D dataArea, Rectangle2D markerArea, RectangleInsets markerOffset, LengthAdjustmentType labelOffsetType, RectangleAnchor anchor)	Calculates the (x, y) coordinates for drawing a marker label.
protected Object	clone()	Returns a clone of the renderer.
void	drawAnnotations(Graphics2D g2, Rectangle2D dataArea, ValueAxis domainAxis, ValueAxis rangeAxis, Layer layer, PlotRenderingInfo info)	Draws all the annotations for the specified layer.
void	drawDomainLine(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double value, Paint paint, Stroke stroke)	Draws a line perpendicular to the domain axis.
void	drawDomainMarker(Graphics2D g2, XYPlot plot, ValueAxis domainAxis, Marker marker, Rectangle2D dataArea)	Draws a line on the chart perpendicular to the x-axis to mark a value or range of values.
protected void	drawItemLabel(Graphics2D g2, PlotOrientation orientation, XYDataset dataset, int series, int item, double x, double y, boolean negative)	Draws an item label.
void	drawRangeLine(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double value, Paint paint, Stroke stroke)	Draws a line perpendicular to the range axis.
void	drawRangeMarker(Graphics2D g2, XYPlot plot, ValueAxis rangeAxis, Marker marker, Rectangle2D dataArea)	Draws a line on the chart perpendicular to the y-axis to mark a value or range of values.
boolean	equals(Object obj)	Tests this renderer for equality with another object.
void	fillDomainGridBand(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double start, double end)	Fills a band between two values on the axis.
void	fillRangeGridBand(Graphics2D g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double start, double end)	Fills a band between two values on the range axis.
Range	findDomainBounds(XYDataset dataset)	Returns the lower and upper bounds (range) of the x-values in the specified dataset.
protected Range	findDomainBounds(XYDataset dataset, boolean includeInterval)	Returns the lower and upper bounds (range) of the x-values in the specified dataset.
Range	findRangeBounds(XYDataset dataset)	Returns the range of values the renderer requires to display all the items from the specified dataset.
protected Range	findRangeBounds(XYDataset dataset, boolean includeInterval)	Returns the range of values the renderer requires to display all the items from the specified dataset.
Collection	getAnnotations()	Returns a collection of the annotations that are assigned to the renderer.
XYItemLabelGenerator	getDefaultItemLabelGenerator()	Returns the default item label generator.
XYToolTipGenerator	getDefaultToolTipGenerator()	Returns the default tool tip generator.
DrawingSupplier	getDrawingSupplier()	Returns the drawing supplier from the plot.
XYItemLabelGenerator	getItemLabelGenerator(int series, int item)	Returns the label generator for a data item.
LegendItem	getLegendItem(int datasetIndex, int series)	Returns a default legend item for the specified series.
XYSeriesLabelGenerator	getLegendItemLabelGenerator()	Returns the legend item label generator.
LegendItemCollection	getLegendItems()	Returns a (possibly empty) collection of legend items for the series that this renderer is responsible for drawing.
XYSeriesLabelGenerator	getLegendItemToolTipGenerator()	Returns the legend item tool tip generator.
XYSeriesLabelGenerator	getLegendItemURLGenerator()	Returns the legend item URL generator.
int	getPassCount()	Returns the number of passes through the data that the renderer requires in order to draw the chart.
XYPlot	getPlot()	Returns the plot that the renderer is assigned to.
XYItemLabelGenerator	getSeriesItemLabelGenerator(int series)	Returns the item label generator for a series.
XYToolTipGenerator	getSeriesToolTipGenerator(int series)	Returns the tool tip generator for a series.
XYToolTipGenerator	getToolTipGenerator(int series, int item)	Returns the tool tip generator for a data item.
XYURLGenerator	getURLGenerator()	Returns the URL generator for HTML image maps.
int	hashCode()	Returns a hashcode for the renderer.
XYItemRendererState	initialise(Graphics2D g2, Rectangle2D dataArea, XYPlot plot, XYDataset dataset, PlotRenderingInfo info)	Initialises the renderer and returns a state object that should be passed to all subsequent calls to the drawItem() method.
protected static void	lineTo(GeneralPath hotspot, double x, double y)	Utility method delegating to Path2D.Float.lineTo(double, double) taking double as parameters.
protected static void	moveTo(GeneralPath hotspot, double x, double y)	Utility method delegating to Path2D.Float.moveTo(double, double) taking double as parameters.
boolean	removeAnnotation(XYAnnotation annotation)	Removes the specified annotation and sends a RendererChangeEvent to all registered listeners.
void	removeAnnotations()	Removes all annotations and sends a RendererChangeEvent to all registered listeners.
void	setDefaultItemLabelGenerator(XYItemLabelGenerator generator)	Sets the default item label generator and sends a RendererChangeEvent to all registered listeners.
void	setDefaultToolTipGenerator(XYToolTipGenerator generator)	Sets the default tool tip generator and sends a RendererChangeEvent to all registered listeners.
void	setLegendItemLabelGenerator(XYSeriesLabelGenerator generator)	Sets the legend item label generator and sends a RendererChangeEvent to all registered listeners.
void	setLegendItemToolTipGenerator(XYSeriesLabelGenerator generator)	Sets the legend item tool tip generator and sends a RendererChangeEvent to all registered listeners.
void	setLegendItemURLGenerator(XYSeriesLabelGenerator generator)	Sets the legend item URL generator and sends a RendererChangeEvent to all registered listeners.
void	setPlot(XYPlot plot)	Sets the plot that the renderer is assigned to.
void	setSeriesItemLabelGenerator(int series, XYItemLabelGenerator generator)	Sets the item label generator for a series and sends a RendererChangeEvent to all registered listeners.
void	setSeriesToolTipGenerator(int series, XYToolTipGenerator generator)	Sets the tool tip generator for a series and sends a RendererChangeEvent to all registered listeners.
void	setURLGenerator(XYURLGenerator urlGenerator)	Sets the URL generator for HTML image maps and sends a RendererChangeEvent to all registered listeners.
protected void	updateCrosshairValues(CrosshairState crosshairState, double x, double y, int datasetIndex, double transX, double transY, PlotOrientation orientation)	Considers the current (x, y) coordinate and updates the crosshair point if it meets the criteria (usually means the (x, y) coordinate is the closest to the anchor point so far).

Methods inherited from class org.jfree.chart.renderer.AbstractRenderer

addChangeListener, beginElementGroup, calculateLabelAnchorPoint, clearSeriesPaints, clearSeriesStrokes, endElementGroup, fireChangeEvent, getAutoPopulateSeriesFillPaint, getAutoPopulateSeriesOutlinePaint, getAutoPopulateSeriesOutlineStroke, getAutoPopulateSeriesPaint, getAutoPopulateSeriesShape, getAutoPopulateSeriesStroke, getDataBoundsIncludesVisibleSeriesOnly, getDefaultCreateEntities, getDefaultEntityRadius, getDefaultFillPaint, getDefaultItemLabelFont, getDefaultItemLabelPaint, getDefaultItemLabelsVisible, getDefaultLegendShape, getDefaultLegendTextFont, getDefaultLegendTextPaint, getDefaultNegativeItemLabelPosition, getDefaultOutlinePaint, getDefaultOutlineStroke, getDefaultPaint, getDefaultPositiveItemLabelPosition, getDefaultSeriesVisible, getDefaultSeriesVisibleInLegend, getDefaultShape, getDefaultStroke, getItemCreateEntity, getItemFillPaint, getItemLabelAnchorOffset, getItemLabelFont, getItemLabelInsets, getItemLabelPaint, getItemOutlinePaint, getItemOutlineStroke, getItemPaint, getItemShape, getItemStroke, getItemVisible, getLegendShape, getLegendTextFont, getLegendTextPaint, getNegativeItemLabelPosition, getPositiveItemLabelPosition, getSeriesCreateEntities, getSeriesFillPaint, getSeriesItemLabelFont, getSeriesItemLabelPaint, getSeriesNegativeItemLabelPosition, getSeriesOutlinePaint, getSeriesOutlineStroke, getSeriesPaint, getSeriesPositiveItemLabelPosition, getSeriesShape, getSeriesStroke, getSeriesVisible, getSeriesVisibleInLegend, getTreatLegendShapeAsLine, hasListener, isComputeItemLabelContrastColor, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, lookupLegendShape, lookupLegendTextFont, lookupLegendTextPaint, lookupSeriesFillPaint, lookupSeriesOutlinePaint, lookupSeriesOutlineStroke, lookupSeriesPaint, lookupSeriesShape, lookupSeriesStroke, notifyListeners, removeChangeListener, setAutoPopulateSeriesFillPaint, setAutoPopulateSeriesOutlinePaint, setAutoPopulateSeriesOutlineStroke, setAutoPopulateSeriesPaint, setAutoPopulateSeriesShape, setAutoPopulateSeriesStroke, setComputeItemLabelContrastColor, setDataBoundsIncludesVisibleSeriesOnly, setDefaultCreateEntities, setDefaultCreateEntities, setDefaultEntityRadius, setDefaultFillPaint, setDefaultFillPaint, setDefaultItemLabelFont, setDefaultItemLabelFont, setDefaultItemLabelPaint, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultLegendShape, setDefaultLegendTextFont, setDefaultLegendTextPaint, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setItemLabelAnchorOffset, setItemLabelInsets, setLegendShape, setLegendTextFont, setLegendTextPaint, setSeriesCreateEntities, setSeriesCreateEntities, setSeriesFillPaint, setSeriesFillPaint, setSeriesItemLabelFont, setSeriesItemLabelFont, setSeriesItemLabelPaint, setSeriesItemLabelPaint, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesNegativeItemLabelPosition, setSeriesNegativeItemLabelPosition, setSeriesOutlinePaint, setSeriesOutlinePaint, setSeriesOutlineStroke, setSeriesOutlineStroke, setSeriesPaint, setSeriesPaint, setSeriesPositiveItemLabelPosition, setSeriesPositiveItemLabelPosition, setSeriesShape, setSeriesShape, setSeriesStroke, setSeriesStroke, setSeriesVisible, setSeriesVisible, setSeriesVisibleInLegend, setSeriesVisibleInLegend, setTreatLegendShapeAsLine

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jfree.chart.renderer.xy.XYItemRenderer

addChangeListener, drawItem, getDefaultCreateEntities, getDefaultFillPaint, getDefaultItemLabelFont, getDefaultItemLabelPaint, getDefaultItemLabelsVisible, getDefaultNegativeItemLabelPosition, getDefaultOutlinePaint, getDefaultOutlineStroke, getDefaultPaint, getDefaultPositiveItemLabelPosition, getDefaultSeriesVisible, getDefaultSeriesVisibleInLegend, getDefaultShape, getDefaultStroke, getItemCreateEntity, getItemFillPaint, getItemLabelFont, getItemLabelPaint, getItemOutlinePaint, getItemOutlineStroke, getItemPaint, getItemShape, getItemStroke, getItemVisible, getNegativeItemLabelPosition, getPositiveItemLabelPosition, getSeriesCreateEntities, getSeriesFillPaint, getSeriesItemLabelFont, getSeriesItemLabelPaint, getSeriesNegativeItemLabelPosition, getSeriesOutlinePaint, getSeriesOutlineStroke, getSeriesPaint, getSeriesPositiveItemLabelPosition, getSeriesShape, getSeriesStroke, getSeriesVisible, getSeriesVisibleInLegend, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, removeChangeListener, setDefaultCreateEntities, setDefaultCreateEntities, setDefaultFillPaint, setDefaultFillPaint, setDefaultItemLabelFont, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setSeriesCreateEntities, setSeriesCreateEntities, setSeriesFillPaint, setSeriesFillPaint, setSeriesItemLabelFont, setSeriesItemLabelPaint, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesItemLabelsVisible, setSeriesNegativeItemLabelPosition, setSeriesNegativeItemLabelPosition, setSeriesOutlinePaint, setSeriesOutlinePaint, setSeriesOutlineStroke, setSeriesOutlineStroke, setSeriesPaint, setSeriesPaint, setSeriesPositiveItemLabelPosition, setSeriesPositiveItemLabelPosition, setSeriesShape, setSeriesShape, setSeriesStroke, setSeriesStroke, setSeriesVisible, setSeriesVisible, setSeriesVisibleInLegend, setSeriesVisibleInLegend

Constructor Details

AbstractXYItemRenderer

protected AbstractXYItemRenderer()

Creates a renderer where the tooltip generator and the URL generator are both null.

Method Details

getPassCount

public int getPassCount()

Returns the number of passes through the data that the renderer requires in order to draw the chart. Most charts will require a single pass, but some require two passes.

Specified by:

getPassCount in interface XYItemRenderer

Returns:

The pass count.

getPlot

public XYPlot getPlot()

Returns the plot that the renderer is assigned to.

Specified by:

getPlot in interface XYItemRenderer

Returns:

The plot (possibly null).

setPlot

public void setPlot(XYPlot plot)

Sets the plot that the renderer is assigned to.

Specified by:

setPlot in interface XYItemRenderer

Parameters:

plot - the plot (null permitted).

initialise

public XYItemRendererState initialise(Graphics2D g2,
 Rectangle2D dataArea,
 XYPlot plot,
 XYDataset dataset,
 PlotRenderingInfo info)

Initialises the renderer and returns a state object that should be passed to all subsequent calls to the drawItem() method.

This method will be called before the first item is rendered, giving the renderer an opportunity to initialise any state information it wants to maintain. The renderer can do nothing if it chooses.

Specified by:

initialise in interface XYItemRenderer

Parameters:

g2 - the graphics device.

dataArea - the area inside the axes.

plot - the plot.

dataset - the dataset.

info - an optional info collection object to return data back to the caller.

Returns:

The renderer state (never null).

beginElementGroup

protected void beginElementGroup(Graphics2D g2,
 Comparable seriesKey,
 int itemIndex)

Adds a KEY_BEGIN_ELEMENT hint to the graphics target. This hint is recognised by JFreeSVG (in theory it could be used by other Graphics2D implementations also).

Parameters:

g2 - the graphics target (null not permitted).

seriesKey - the series key that identifies the element (null not permitted).

itemIndex - the item index.

getItemLabelGenerator

public XYItemLabelGenerator getItemLabelGenerator(int series,
 int item)

Returns the label generator for a data item. This implementation simply passes control to the getSeriesItemLabelGenerator(int) method. If, for some reason, you want a different generator for individual items, you can override this method.

Specified by:

getItemLabelGenerator in interface XYItemRenderer

Parameters:

series - the series index (zero based).

item - the item index (zero based).

Returns:

The generator (possibly null).

getSeriesItemLabelGenerator

public XYItemLabelGenerator getSeriesItemLabelGenerator(int series)

Returns the item label generator for a series.

Specified by:

getSeriesItemLabelGenerator in interface XYItemRenderer

Parameters:

series - the series index (zero based).

Returns:

The generator (possibly null).

See Also:

• XYItemRenderer.setSeriesItemLabelGenerator(int, XYItemLabelGenerator)

setSeriesItemLabelGenerator

public void setSeriesItemLabelGenerator(int series,
 XYItemLabelGenerator generator)

Sets the item label generator for a series and sends a RendererChangeEvent to all registered listeners.

Specified by:

setSeriesItemLabelGenerator in interface XYItemRenderer

Parameters:

series - the series index (zero based).

generator - the generator (null permitted).

See Also:

• XYItemRenderer.getSeriesItemLabelGenerator(int)

getDefaultItemLabelGenerator

public XYItemLabelGenerator getDefaultItemLabelGenerator()

Returns the default item label generator.

Specified by:

getDefaultItemLabelGenerator in interface XYItemRenderer

Returns:

The generator (possibly null).

See Also:

• XYItemRenderer.setDefaultItemLabelGenerator(XYItemLabelGenerator)

setDefaultItemLabelGenerator

public void setDefaultItemLabelGenerator(XYItemLabelGenerator generator)

Sets the default item label generator and sends a RendererChangeEvent to all registered listeners.

Specified by:

setDefaultItemLabelGenerator in interface XYItemRenderer

Parameters:

generator - the generator (null permitted).

See Also:

• XYItemRenderer.getDefaultItemLabelGenerator()

getToolTipGenerator

public XYToolTipGenerator getToolTipGenerator(int series,
 int item)

Returns the tool tip generator for a data item. If, for some reason, you want a different generator for individual items, you can override this method.

Specified by:

getToolTipGenerator in interface XYItemRenderer

Parameters:

series - the series index (zero based).

item - the item index (zero based).

Returns:

The generator (possibly null).

getSeriesToolTipGenerator

public XYToolTipGenerator getSeriesToolTipGenerator(int series)

Returns the tool tip generator for a series.

Specified by:

getSeriesToolTipGenerator in interface XYItemRenderer

Parameters:

series - the series index (zero based).

Returns:

The generator (possibly null).

See Also:

• XYItemRenderer.setSeriesToolTipGenerator(int, XYToolTipGenerator)

setSeriesToolTipGenerator

public void setSeriesToolTipGenerator(int series,
 XYToolTipGenerator generator)

Sets the tool tip generator for a series and sends a RendererChangeEvent to all registered listeners.

Specified by:

setSeriesToolTipGenerator in interface XYItemRenderer

Parameters:

series - the series index (zero based).

generator - the generator (null permitted).

See Also:

• XYItemRenderer.getSeriesToolTipGenerator(int)

getDefaultToolTipGenerator

public XYToolTipGenerator getDefaultToolTipGenerator()

Returns the default tool tip generator.

Specified by:

getDefaultToolTipGenerator in interface XYItemRenderer

Returns:

The generator (possibly null).

See Also:

• setDefaultToolTipGenerator(XYToolTipGenerator)

setDefaultToolTipGenerator

public void setDefaultToolTipGenerator(XYToolTipGenerator generator)

Sets the default tool tip generator and sends a RendererChangeEvent to all registered listeners.

Specified by:

setDefaultToolTipGenerator in interface XYItemRenderer

Parameters:

generator - the generator (null permitted).

See Also:

• getDefaultToolTipGenerator()

getURLGenerator

public XYURLGenerator getURLGenerator()

Returns the URL generator for HTML image maps.

Specified by:

getURLGenerator in interface XYItemRenderer

Returns:

The URL generator (possibly null).

setURLGenerator

public void setURLGenerator(XYURLGenerator urlGenerator)

Sets the URL generator for HTML image maps and sends a RendererChangeEvent to all registered listeners.

Specified by:

setURLGenerator in interface XYItemRenderer

Parameters:

urlGenerator - the URL generator (null permitted).

addAnnotation

public void addAnnotation(XYAnnotation annotation)

Adds an annotation and sends a RendererChangeEvent to all registered listeners. The annotation is added to the foreground layer.

Specified by:

addAnnotation in interface XYItemRenderer

Parameters:

annotation - the annotation (null not permitted).

addAnnotation

public void addAnnotation(XYAnnotation annotation,
 Layer layer)

Adds an annotation to the specified layer and sends a RendererChangeEvent to all registered listeners.

Specified by:

addAnnotation in interface XYItemRenderer

Parameters:

annotation - the annotation (null not permitted).

layer - the layer (null not permitted).

removeAnnotation

public boolean removeAnnotation(XYAnnotation annotation)

Removes the specified annotation and sends a RendererChangeEvent to all registered listeners.

Specified by:

removeAnnotation in interface XYItemRenderer

Parameters:

annotation - the annotation to remove (null not permitted).

Returns:

A boolean to indicate whether or not the annotation was successfully removed.

removeAnnotations

public void removeAnnotations()

Removes all annotations and sends a RendererChangeEvent to all registered listeners.

Specified by:

removeAnnotations in interface XYItemRenderer

annotationChanged

public void annotationChanged(AnnotationChangeEvent event)

Receives notification of a change to an Annotation added to this renderer.

Specified by:

annotationChanged in interface AnnotationChangeListener

Parameters:

event - information about the event (not used here).

getAnnotations

public Collection getAnnotations()

Returns a collection of the annotations that are assigned to the renderer.

Returns:

A collection of annotations (possibly empty but never null).

getLegendItemLabelGenerator

public XYSeriesLabelGenerator getLegendItemLabelGenerator()

Returns the legend item label generator.

Specified by:

getLegendItemLabelGenerator in interface XYItemRenderer

Returns:

The label generator (never null).

See Also:

• setLegendItemLabelGenerator(XYSeriesLabelGenerator)

setLegendItemLabelGenerator

public void setLegendItemLabelGenerator(XYSeriesLabelGenerator generator)

Sets the legend item label generator and sends a RendererChangeEvent to all registered listeners.

Specified by:

setLegendItemLabelGenerator in interface XYItemRenderer

Parameters:

generator - the generator (null not permitted).

See Also:

• getLegendItemLabelGenerator()

getLegendItemToolTipGenerator

public XYSeriesLabelGenerator getLegendItemToolTipGenerator()

Returns the legend item tool tip generator.

Returns:

The tool tip generator (possibly null).

See Also:

• setLegendItemToolTipGenerator(XYSeriesLabelGenerator)

setLegendItemToolTipGenerator

public void setLegendItemToolTipGenerator(XYSeriesLabelGenerator generator)

Sets the legend item tool tip generator and sends a RendererChangeEvent to all registered listeners.

Parameters:

generator - the generator (null permitted).

See Also:

• getLegendItemToolTipGenerator()

getLegendItemURLGenerator

public XYSeriesLabelGenerator getLegendItemURLGenerator()

Returns the legend item URL generator.

Returns:

The URL generator (possibly null).

See Also:

• setLegendItemURLGenerator(XYSeriesLabelGenerator)

setLegendItemURLGenerator

public void setLegendItemURLGenerator(XYSeriesLabelGenerator generator)

Sets the legend item URL generator and sends a RendererChangeEvent to all registered listeners.

Parameters:

generator - the generator (null permitted).

See Also:

• getLegendItemURLGenerator()

findDomainBounds

public Range findDomainBounds(XYDataset dataset)

Returns the lower and upper bounds (range) of the x-values in the specified dataset.

Specified by:

findDomainBounds in interface XYItemRenderer

Parameters:

dataset - the dataset (null permitted).

Returns:

The range (null if the dataset is null or empty).

See Also:

• findRangeBounds(XYDataset)

findDomainBounds

protected Range findDomainBounds(XYDataset dataset,
 boolean includeInterval)

Returns the lower and upper bounds (range) of the x-values in the specified dataset.

Parameters:

dataset - the dataset (null permitted).

includeInterval - include the interval (if any) for the dataset?

Returns:

The range (null if the dataset is null or empty).

findRangeBounds

public Range findRangeBounds(XYDataset dataset)

Returns the range of values the renderer requires to display all the items from the specified dataset.

Specified by:

findRangeBounds in interface XYItemRenderer

Parameters:

dataset - the dataset (null permitted).

Returns:

The range (null if the dataset is null or empty).

See Also:

• findDomainBounds(XYDataset)

findRangeBounds

protected Range findRangeBounds(XYDataset dataset,
 boolean includeInterval)

Returns the range of values the renderer requires to display all the items from the specified dataset.

Parameters:

dataset - the dataset (null permitted).

includeInterval - include the interval (if any) for the dataset?

Returns:

The range (null if the dataset is null or empty).

getLegendItems

public LegendItemCollection getLegendItems()

Returns a (possibly empty) collection of legend items for the series that this renderer is responsible for drawing.

Specified by:

getLegendItems in interface LegendItemSource

Returns:

The legend item collection (never null).

getLegendItem

public LegendItem getLegendItem(int datasetIndex,
 int series)

Returns a default legend item for the specified series. Subclasses should override this method to generate customised items.

Specified by:

getLegendItem in interface XYItemRenderer

Parameters:

datasetIndex - the dataset index (zero-based).

series - the series index (zero-based).

Returns:

A legend item for the series.

fillDomainGridBand

public void fillDomainGridBand(Graphics2D g2,
 XYPlot plot,
 ValueAxis axis,
 Rectangle2D dataArea,
 double start,
 double end)

Fills a band between two values on the axis. This can be used to color bands between the grid lines.

Specified by:

fillDomainGridBand in interface XYItemRenderer

Parameters:

g2 - the graphics device.

plot - the plot.

axis - the domain axis.

dataArea - the data area.

start - the start value.

end - the end value.

fillRangeGridBand

public void fillRangeGridBand(Graphics2D g2,
 XYPlot plot,
 ValueAxis axis,
 Rectangle2D dataArea,
 double start,
 double end)

Fills a band between two values on the range axis. This can be used to color bands between the grid lines.

Specified by:

fillRangeGridBand in interface XYItemRenderer

Parameters:

g2 - the graphics device.

plot - the plot.

axis - the range axis.

dataArea - the data area.

start - the start value.

end - the end value.

drawDomainLine

public void drawDomainLine(Graphics2D g2,
 XYPlot plot,
 ValueAxis axis,
 Rectangle2D dataArea,
 double value,
 Paint paint,
 Stroke stroke)

Draws a line perpendicular to the domain axis.

Specified by:

drawDomainLine in interface XYItemRenderer

Parameters:

g2 - the graphics device.

plot - the plot.

axis - the value axis.

dataArea - the area for plotting data.

value - the value at which the grid line should be drawn.

paint - the paint (null not permitted).

stroke - the stroke (null not permitted).

drawRangeLine

public void drawRangeLine(Graphics2D g2,
 XYPlot plot,
 ValueAxis axis,
 Rectangle2D dataArea,
 double value,
 Paint paint,
 Stroke stroke)

Draws a line perpendicular to the range axis.

Specified by:

drawRangeLine in interface XYItemRenderer

Parameters:

g2 - the graphics device.

plot - the plot.

axis - the value axis.

dataArea - the area for plotting data.

value - the value at which the grid line should be drawn.

paint - the paint.

stroke - the stroke.

drawDomainMarker

public void drawDomainMarker(Graphics2D g2,
 XYPlot plot,
 ValueAxis domainAxis,
 Marker marker,
 Rectangle2D dataArea)

Draws a line on the chart perpendicular to the x-axis to mark a value or range of values.

Specified by:

drawDomainMarker in interface XYItemRenderer

Parameters:

g2 - the graphics device.

plot - the plot.

domainAxis - the domain axis.

marker - the marker line.

dataArea - the axis data area.

calculateDomainMarkerTextAnchorPoint

protected Point2D calculateDomainMarkerTextAnchorPoint(Graphics2D g2,
 PlotOrientation orientation,
 Rectangle2D dataArea,
 Rectangle2D markerArea,
 RectangleInsets markerOffset,
 LengthAdjustmentType labelOffsetType,
 RectangleAnchor anchor)

Calculates the (x, y) coordinates for drawing a marker label.

Parameters:

g2 - the graphics device.

orientation - the plot orientation.

dataArea - the data area.

markerArea - the rectangle surrounding the marker area.

markerOffset - the marker label offset.

labelOffsetType - the label offset type.

anchor - the label anchor.

Returns:

The coordinates for drawing the marker label.

drawRangeMarker

public void drawRangeMarker(Graphics2D g2,
 XYPlot plot,
 ValueAxis rangeAxis,
 Marker marker,
 Rectangle2D dataArea)

Draws a line on the chart perpendicular to the y-axis to mark a value or range of values.

Specified by:

drawRangeMarker in interface XYItemRenderer

Parameters:

g2 - the graphics device.

plot - the plot.

rangeAxis - the range axis.

marker - the marker line.

dataArea - the axis data area.

clone

protected Object clone()
                throws CloneNotSupportedException

Returns a clone of the renderer.

Overrides:

clone in class AbstractRenderer

Returns:

A clone.

Throws:

CloneNotSupportedException - if the renderer does not support cloning.

equals

public boolean equals(Object obj)

Tests this renderer for equality with another object.

Overrides:

equals in class AbstractRenderer

Parameters:

obj - the object (null permitted).

Returns:

true or false.

hashCode

public int hashCode()

Description copied from class: AbstractRenderer

Returns a hashcode for the renderer.

Overrides:

hashCode in class AbstractRenderer

Returns:

The hashcode.

getDrawingSupplier

public DrawingSupplier getDrawingSupplier()

Returns the drawing supplier from the plot.

Specified by:

getDrawingSupplier in class AbstractRenderer

Returns:

The drawing supplier (possibly null).

updateCrosshairValues

protected void updateCrosshairValues(CrosshairState crosshairState,
 double x,
 double y,
 int datasetIndex,
 double transX,
 double transY,
 PlotOrientation orientation)

Considers the current (x, y) coordinate and updates the crosshair point if it meets the criteria (usually means the (x, y) coordinate is the closest to the anchor point so far).

Parameters:

crosshairState - the crosshair state (null permitted, but the method does nothing in that case).

x - the x-value (in data space).

y - the y-value (in data space).

datasetIndex - the index of the dataset for the point.

transX - the x-value translated to Java2D space.

transY - the y-value translated to Java2D space.

orientation - the plot orientation (null not permitted).

drawItemLabel

protected void drawItemLabel(Graphics2D g2,
 PlotOrientation orientation,
 XYDataset dataset,
 int series,
 int item,
 double x,
 double y,
 boolean negative)

Draws an item label.

Parameters:

g2 - the graphics device.

orientation - the orientation.

dataset - the dataset.

series - the series index (zero-based).

item - the item index (zero-based).

x - the x coordinate (in Java2D space).

y - the y coordinate (in Java2D space).

negative - indicates a negative value (which affects the item label position).

drawAnnotations

public void drawAnnotations(Graphics2D g2,
 Rectangle2D dataArea,
 ValueAxis domainAxis,
 ValueAxis rangeAxis,
 Layer layer,
 PlotRenderingInfo info)

Draws all the annotations for the specified layer.

Specified by:

drawAnnotations in interface XYItemRenderer

Parameters:

g2 - the graphics device.

dataArea - the data area.

domainAxis - the domain axis.

rangeAxis - the range axis.

layer - the layer (null not permitted).

info - the plot rendering info.

addEntity

protected void addEntity(EntityCollection entities,
 Shape hotspot,
 XYDataset dataset,
 int series,
 int item,
 double entityX,
 double entityY)

Adds an entity to the collection. Note the the entityX and entityY coordinates are in Java2D space, should already be adjusted for the plot orientation, and will only be used if hotspot is null.

Parameters:

entities - the entity collection being populated.

hotspot - the entity area (if null a default will be used).

dataset - the dataset.

series - the series.

item - the item.

entityX - the entity x-coordinate (in Java2D space, only used if hotspot is null).

entityY - the entity y-coordinate (in Java2D space, only used if hotspot is null).

moveTo

protected static void moveTo(GeneralPath hotspot,
 double x,
 double y)

Utility method delegating to Path2D.Float.moveTo(double, double) taking double as parameters.

Parameters:

hotspot - the region under construction (null not permitted);

x - the x coordinate;

y - the y coordinate;

lineTo

protected static void lineTo(GeneralPath hotspot,
 double x,
 double y)

Utility method delegating to Path2D.Float.lineTo(double, double) taking double as parameters.

Parameters:

hotspot - the region under construction (null not permitted);

x - the x coordinate;

y - the y coordinate;