org.jfree.chart.title
Class LegendTitle

java.lang.Object
  org.jfree.chart.block.AbstractBlock
      org.jfree.chart.title.Title
          org.jfree.chart.title.LegendTitle

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Block, org.jfree.ui.Drawable, org.jfree.util.PublicCloneable

public class LegendTitle
extends Title
implements java.lang.Cloneable, org.jfree.util.PublicCloneable, java.io.Serializable

A chart title that displays a legend for the data in the chart.

The title can be populated with legend items manually, or you can assign a reference to the plot, in which case the legend items will be automatically created to match the dataset(s).

See Also:

Serialized Form

Field Summary

static java.awt.Font	DEFAULT_ITEM_FONT The default item font.
static java.awt.Paint	DEFAULT_ITEM_PAINT The default item paint.

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

DEFAULT_HORIZONTAL_ALIGNMENT, DEFAULT_PADDING, DEFAULT_POSITION, DEFAULT_VERTICAL_ALIGNMENT, visible

Constructor Summary

LegendTitle(LegendItemSource source)
Constructs a new (empty) legend for the specified source.

LegendTitle(LegendItemSource source, Arrangement hLayout, Arrangement vLayout)
Creates a new legend title with the specified arrangement.

Method Summary

org.jfree.ui.Size2D	arrange(java.awt.Graphics2D g2, RectangleConstraint constraint) Arranges the contents of the block, within the given constraints, and returns the block size.
protected Block	createLegendItemBlock(LegendItem item) Creates a legend item block.
void	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area) Draws the title on a Java 2D graphics device (such as the screen or a printer).
java.lang.Object	draw(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D area, java.lang.Object params) Draws the block within the specified area.
boolean	equals(java.lang.Object obj) Tests this title for equality with an arbitrary object.
protected void	fetchLegendItems() Fetches the latest legend items.
java.awt.Paint	getBackgroundPaint() Returns the background paint.
BlockContainer	getItemContainer() Returns the container that holds the legend items.
java.awt.Font	getItemFont() Returns the item font.
org.jfree.ui.RectangleInsets	getItemLabelPadding() Returns the padding used for the items labels.
java.awt.Paint	getItemPaint() Returns the item paint.
org.jfree.ui.RectangleAnchor	getLegendItemGraphicAnchor() Returns the legend item graphic anchor.
org.jfree.ui.RectangleEdge	getLegendItemGraphicEdge() Returns the location of the shape within each legend item.
org.jfree.ui.RectangleAnchor	getLegendItemGraphicLocation() Returns the legend item graphic location.
org.jfree.ui.RectangleInsets	getLegendItemGraphicPadding() Returns the padding that will be applied to each item graphic.
LegendItemSource[]	getSources() Returns the legend item sources.
BlockContainer	getWrapper() Returns the wrapper container, if any.
void	setBackgroundPaint(java.awt.Paint paint) Sets the background paint for the legend and sends a TitleChangeEvent to all registered listeners.
void	setItemFont(java.awt.Font font) Sets the item font and sends a TitleChangeEvent to all registered listeners.
void	setItemLabelPadding(org.jfree.ui.RectangleInsets padding) Sets the padding used for the item labels in the legend.
void	setItemPaint(java.awt.Paint paint) Sets the item paint.
void	setLegendItemGraphicAnchor(org.jfree.ui.RectangleAnchor anchor) Sets the anchor point used for the graphic in each legend item.
void	setLegendItemGraphicEdge(org.jfree.ui.RectangleEdge edge) Sets the location of the shape within each legend item.
void	setLegendItemGraphicLocation(org.jfree.ui.RectangleAnchor anchor) Sets the legend item graphic location.
void	setLegendItemGraphicPadding(org.jfree.ui.RectangleInsets padding) Sets the padding that will be applied to each item graphic in the legend and sends a TitleChangeEvent to all registered listeners.
void	setSources(LegendItemSource[] sources) Sets the legend item sources and sends a TitleChangeEvent to all registered listeners.
void	setWrapper(BlockContainer wrapper) Sets the wrapper container for the legend.

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

Field Detail

DEFAULT_ITEM_FONT

public static final java.awt.Font DEFAULT_ITEM_FONT

The default item font.

DEFAULT_ITEM_PAINT

public static final java.awt.Paint DEFAULT_ITEM_PAINT

The default item paint.

Constructor Detail

LegendTitle

public LegendTitle(LegendItemSource source)

Constructs a new (empty) legend for the specified source.

Parameters:

source - the source.

LegendTitle

public LegendTitle(LegendItemSource source,
                   Arrangement hLayout,
                   Arrangement vLayout)

Creates a new legend title with the specified arrangement.

Parameters:

source - the source.

hLayout - the horizontal item arrangement (null not permitted).

vLayout - the vertical item arrangement (null not permitted).

Method Detail

getSources

public LegendItemSource[] getSources()

Returns the legend item sources.

Returns:

The sources.

setSources

public void setSources(LegendItemSource[] sources)

Sets the legend item sources and sends a TitleChangeEvent to all registered listeners.

Parameters:

sources - the sources (null not permitted).

getBackgroundPaint

public java.awt.Paint getBackgroundPaint()

Returns the background paint.

Returns:

The background paint (possibly null).

setBackgroundPaint

public void setBackgroundPaint(java.awt.Paint paint)

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

Parameters:

paint - the paint (null permitted).

getLegendItemGraphicEdge

public org.jfree.ui.RectangleEdge getLegendItemGraphicEdge()

Returns the location of the shape within each legend item.

Returns:

The location (never null).

setLegendItemGraphicEdge

public void setLegendItemGraphicEdge(org.jfree.ui.RectangleEdge edge)

Sets the location of the shape within each legend item.

Parameters:

edge - the edge (null not permitted).

getLegendItemGraphicAnchor

public org.jfree.ui.RectangleAnchor getLegendItemGraphicAnchor()

Returns the legend item graphic anchor.

Returns:

The graphic anchor (never null).

setLegendItemGraphicAnchor

public void setLegendItemGraphicAnchor(org.jfree.ui.RectangleAnchor anchor)

Sets the anchor point used for the graphic in each legend item.

Parameters:

anchor - the anchor point (null not permitted).

getLegendItemGraphicLocation

public org.jfree.ui.RectangleAnchor getLegendItemGraphicLocation()

Returns the legend item graphic location.

Returns:

The location (never null).

setLegendItemGraphicLocation

public void setLegendItemGraphicLocation(org.jfree.ui.RectangleAnchor anchor)

Sets the legend item graphic location.

Parameters:

anchor - the anchor (null not permitted).

getLegendItemGraphicPadding

public org.jfree.ui.RectangleInsets getLegendItemGraphicPadding()

Returns the padding that will be applied to each item graphic.

Returns:

The padding (never null).

setLegendItemGraphicPadding

public void setLegendItemGraphicPadding(org.jfree.ui.RectangleInsets padding)

Sets the padding that will be applied to each item graphic in the legend and sends a TitleChangeEvent to all registered listeners.

Parameters:

padding - the padding (null not permitted).

getItemFont

public java.awt.Font getItemFont()

Returns the item font.

Returns:

The font (never null).

setItemFont

public void setItemFont(java.awt.Font font)

Sets the item font and sends a TitleChangeEvent to all registered listeners.

Parameters:

font - the font (null not permitted).

getItemPaint

public java.awt.Paint getItemPaint()

Returns the item paint.

Returns:

The paint (never null).

setItemPaint

public void setItemPaint(java.awt.Paint paint)

Sets the item paint.

Parameters:

paint - the paint (null not permitted).

getItemLabelPadding

public org.jfree.ui.RectangleInsets getItemLabelPadding()

Returns the padding used for the items labels.

Returns:

The padding (never null).

setItemLabelPadding

public void setItemLabelPadding(org.jfree.ui.RectangleInsets padding)

Sets the padding used for the item labels in the legend.

Parameters:

padding - the padding (null not permitted).

fetchLegendItems

protected void fetchLegendItems()

Fetches the latest legend items.

createLegendItemBlock

protected Block createLegendItemBlock(LegendItem item)

Creates a legend item block.

Parameters:

item - the legend item.

Returns:

The block.

getItemContainer

public BlockContainer getItemContainer()

Returns the container that holds the legend items.

Returns:

The container for the legend items.

arrange

public org.jfree.ui.Size2D arrange(java.awt.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).

draw

public void draw(java.awt.Graphics2D g2,
                 java.awt.geom.Rectangle2D area)

Draws the title on a Java 2D graphics device (such as the screen or a printer).

Specified by:

draw in interface org.jfree.ui.Drawable

Specified by:

draw in class Title

Parameters:

g2 - the graphics device.

area - the available area for the title.

draw

public java.lang.Object draw(java.awt.Graphics2D g2,
                             java.awt.geom.Rectangle2D area,
                             java.lang.Object params)

Draws the block within the specified area.

Specified by:

draw in interface Block

Parameters:

g2 - the graphics device.

area - the area.

params - ignored (null permitted).

Returns:

An EntityBlockResult or null.

getWrapper

public BlockContainer getWrapper()

Returns the wrapper container, if any.

Returns:

The wrapper container (possibly null).

Since:

1.0.11

setWrapper

public void setWrapper(BlockContainer wrapper)

Sets the wrapper container for the legend.

Parameters:

wrapper - the wrapper container.

equals

public boolean equals(java.lang.Object obj)

Tests this title for equality with an arbitrary object.

Overrides:

equals in class Title

Parameters:

obj - the object (null permitted).

Returns:

A boolean.