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## 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.

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