org.jfree.chart.title

Class PaintScaleLegend

java.lang.Object

org.jfree.chart.block.AbstractBlock

org.jfree.chart.title.Title

org.jfree.chart.title.PaintScaleLegend

All Implemented Interfaces:

Serializable, Cloneable, EventListener, Block, AxisChangeListener, org.jfree.ui.Drawable, org.jfree.util.PublicCloneable

public class PaintScaleLegend
extends Title
implements AxisChangeListener, org.jfree.util.PublicCloneable

A legend that shows a range of values and their associated colors, driven by an underlying PaintScale implementation.

Since:

1.0.4

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jfree.chart.title.Title

DEFAULT_HORIZONTAL_ALIGNMENT, DEFAULT_PADDING, DEFAULT_POSITION, DEFAULT_VERTICAL_ALIGNMENT, visible

Constructor Summary

Constructors

Constructor and Description
PaintScaleLegend(PaintScale scale, ValueAxis axis) Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
org.jfree.ui.Size2D	arrange(Graphics2D g2, RectangleConstraint constraint) Arranges the contents of the block, within the given constraints, and returns the block size.
protected org.jfree.ui.Size2D	arrangeRR(Graphics2D g2, Range widthRange, Range heightRange) Returns the content size for the title.
void	axisChanged(AxisChangeEvent event) Receives notification of an axis change event and responds by firing a title change event.
void	draw(Graphics2D g2, Rectangle2D area) Draws the legend within the specified area.
Object	draw(Graphics2D g2, Rectangle2D area, Object params) Draws the legend within the specified area.
boolean	equals(Object obj) Tests this legend for equality with an arbitrary object.
ValueAxis	getAxis() Returns the axis for the paint scale.
AxisLocation	getAxisLocation() Returns the axis location.
double	getAxisOffset() Returns the offset between the axis and the paint strip.
Paint	getBackgroundPaint() Returns the background paint.
PaintScale	getScale() Returns the scale used to convert values to colors.
Paint	getStripOutlinePaint() Returns the paint used to draw the outline of the paint strip.
Stroke	getStripOutlineStroke() Returns the stroke used to draw the outline around the paint strip.
double	getStripWidth() Returns the width of the paint strip, in Java2D units.
int	getSubdivisionCount() Returns the number of subdivisions used to draw the scale.
boolean	isStripOutlineVisible() Returns the flag that controls whether or not an outline is drawn around the paint strip.
void	setAxis(ValueAxis axis) Sets the axis for the paint scale and sends a TitleChangeEvent to all registered listeners.
void	setAxisLocation(AxisLocation location) Sets the axis location and sends a TitleChangeEvent to all registered listeners.
void	setAxisOffset(double offset) Sets the offset between the axis and the paint strip and sends a TitleChangeEvent to all registered listeners.
void	setBackgroundPaint(Paint paint) Sets the background paint and sends a TitleChangeEvent to all registered listeners.
void	setScale(PaintScale scale) Sets the scale and sends a TitleChangeEvent to all registered listeners.
void	setStripOutlinePaint(Paint paint) Sets the paint used to draw the outline of the paint strip, and sends a TitleChangeEvent to all registered listeners.
void	setStripOutlineStroke(Stroke stroke) Sets the stroke used to draw the outline around the paint strip and sends a TitleChangeEvent to all registered listeners.
void	setStripOutlineVisible(boolean visible) Sets the flag that controls whether or not an outline is drawn around the paint strip, and sends a TitleChangeEvent to all registered listeners.
void	setStripWidth(double width) Sets the width of the paint strip and sends a TitleChangeEvent to all registered listeners.
void	setSubdivisionCount(int count) Sets the subdivision count and sends a TitleChangeEvent to all registered listeners.

Methods inherited from class org.jfree.chart.title.Title

addChangeListener, clone, getHorizontalAlignment, getNotify, getPosition, getVerticalAlignment, hashCode, isVisible, notifyListeners, removeChangeListener, setHorizontalAlignment, setNotify, setPosition, setVerticalAlignment, setVisible

Methods inherited from class org.jfree.chart.block.AbstractBlock

arrange, calculateTotalHeight, calculateTotalWidth, drawBorder, getBorder, getBounds, getContentXOffset, getContentYOffset, getFrame, getHeight, getID, getMargin, getPadding, getWidth, setBorder, setBorder, setBounds, setFrame, setHeight, setID, setMargin, setMargin, setPadding, setPadding, setWidth, toContentConstraint, trimBorder, trimMargin, trimPadding, trimToContentHeight, trimToContentWidth

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jfree.util.PublicCloneable

clone

Methods inherited from interface org.jfree.chart.block.Block

arrange, getBounds, getID, setBounds, setID

Constructor Detail

PaintScaleLegend

public PaintScaleLegend(PaintScale scale,
                ValueAxis axis)

Creates a new instance.

Parameters:

scale - the scale (null not permitted).

axis - the axis (null not permitted).

Method Detail

getScale

public PaintScale getScale()

Returns the scale used to convert values to colors.

Returns:

The scale (never null).

See Also:

setScale(PaintScale)

setScale

public void setScale(PaintScale scale)

Sets the scale and sends a TitleChangeEvent to all registered listeners.

Parameters:

scale - the scale (null not permitted).

See Also:

getScale()

getAxis

public ValueAxis getAxis()

Returns the axis for the paint scale.

Returns:

The axis (never null).

See Also:

setAxis(ValueAxis)

setAxis

public void setAxis(ValueAxis axis)

Sets the axis for the paint scale and sends a TitleChangeEvent to all registered listeners.

Parameters:

axis - the axis (null not permitted).

See Also:

getAxis()

getAxisLocation

public AxisLocation getAxisLocation()

Returns the axis location.

Returns:

The axis location (never null).

See Also:

setAxisLocation(AxisLocation)

setAxisLocation

public void setAxisLocation(AxisLocation location)

Sets the axis location and sends a TitleChangeEvent to all registered listeners.

Parameters:

location - the location (null not permitted).

See Also:

getAxisLocation()

getAxisOffset

public double getAxisOffset()

Returns the offset between the axis and the paint strip.

Returns:

The offset between the axis and the paint strip.

See Also:

setAxisOffset(double)

setAxisOffset

public void setAxisOffset(double offset)

Sets the offset between the axis and the paint strip and sends a TitleChangeEvent to all registered listeners.

Parameters:

offset - the offset.

getStripWidth

public double getStripWidth()

Returns the width of the paint strip, in Java2D units.

Returns:

The width of the paint strip.

See Also:

setStripWidth(double)

setStripWidth

public void setStripWidth(double width)

Sets the width of the paint strip and sends a TitleChangeEvent to all registered listeners.

Parameters:

width - the width.

See Also:

getStripWidth()

isStripOutlineVisible

public boolean isStripOutlineVisible()

Returns the flag that controls whether or not an outline is drawn around the paint strip.

Returns:

A boolean.

See Also:

setStripOutlineVisible(boolean)

setStripOutlineVisible

public void setStripOutlineVisible(boolean visible)

Sets the flag that controls whether or not an outline is drawn around the paint strip, and sends a TitleChangeEvent to all registered listeners.

Parameters:

visible - the flag.

See Also:

isStripOutlineVisible()

getStripOutlinePaint

public Paint getStripOutlinePaint()

Returns the paint used to draw the outline of the paint strip.

Returns:

The paint (never null).

See Also:

setStripOutlinePaint(Paint)

setStripOutlinePaint

public void setStripOutlinePaint(Paint paint)

Sets the paint used to draw the outline of the paint strip, and sends a TitleChangeEvent to all registered listeners.

Parameters:

paint - the paint (null not permitted).

See Also:

getStripOutlinePaint()

getStripOutlineStroke

public Stroke getStripOutlineStroke()

Returns the stroke used to draw the outline around the paint strip.

Returns:

The stroke (never null).

See Also:

setStripOutlineStroke(Stroke)

setStripOutlineStroke

public void setStripOutlineStroke(Stroke stroke)

Sets the stroke used to draw the outline around the paint strip and sends a TitleChangeEvent to all registered listeners.

Parameters:

stroke - the stroke (null not permitted).

See Also:

getStripOutlineStroke()

getBackgroundPaint

public Paint getBackgroundPaint()

Returns the background paint.

Returns:

The background paint.

setBackgroundPaint

public void setBackgroundPaint(Paint paint)

Sets the background paint and sends a TitleChangeEvent to all registered listeners.

Parameters:

paint - the paint (null permitted).

getSubdivisionCount

public int getSubdivisionCount()

Returns the number of subdivisions used to draw the scale.

Returns:

The subdivision count.

Since:

1.0.11

setSubdivisionCount

public void setSubdivisionCount(int count)

Sets the subdivision count and sends a TitleChangeEvent to all registered listeners.

Parameters:

count - the count.

Since:

1.0.11

axisChanged

public void axisChanged(AxisChangeEvent event)

Receives notification of an axis change event and responds by firing a title change event.

Specified by:

axisChanged in interface AxisChangeListener

Parameters:

event - the event.

Since:

1.0.13

arrange

public org.jfree.ui.Size2D arrange(Graphics2D g2,
                          RectangleConstraint constraint)

Arranges the contents of the block, within the given constraints, and returns the block size.

Specified by:

arrange in interface Block

Overrides:

arrange in class AbstractBlock

Parameters:

g2 - the graphics device.

constraint - the constraint (null not permitted).

Returns:

The block size (in Java2D units, never null).

arrangeRR

protected org.jfree.ui.Size2D arrangeRR(Graphics2D g2,
                            Range widthRange,
                            Range heightRange)

Returns the content size for the title. This will reflect the fact that a text title positioned on the left or right of a chart will be rotated 90 degrees.

Parameters:

g2 - the graphics device.

widthRange - the width range.

heightRange - the height range.

Returns:

The content size.

draw

public void draw(Graphics2D g2,
        Rectangle2D area)

Draws the legend within the specified area.

Specified by:

draw in interface org.jfree.ui.Drawable

Specified by:

draw in class Title

Parameters:

g2 - the graphics target (null not permitted).

area - the drawing area (null not permitted).

draw

public Object draw(Graphics2D g2,
          Rectangle2D area,
          Object params)

Draws the legend within the specified area.

Specified by:

draw in interface Block

Parameters:

g2 - the graphics target (null not permitted).

area - the drawing area (null not permitted).

params - drawing parameters (ignored here).

Returns:

null.

equals

public boolean equals(Object obj)

Tests this legend for equality with an arbitrary object.

Overrides:

equals in class Title

Parameters:

obj - the object (null permitted).

Returns:

A boolean.