java.lang.Object
- org.jfree.chart.renderer.AbstractRenderer
- - org.jfree.chart.renderer.category.AbstractCategoryItemRenderer
  - - org.jfree.chart.renderer.category.BarRenderer

All Implemented Interfaces:

Serializable, Cloneable, PublicCloneable, ChartElement, org.jfree.chart.legend.LegendItemSource, CategoryItemRenderer

Direct Known Subclasses:

IntervalBarRenderer, LayeredBarRenderer, StackedBarRenderer, StatisticalBarRenderer, WaterfallBarRenderer
```
public class BarRenderer
extends AbstractCategoryItemRenderer
implements Cloneable, PublicCloneable, Serializable
```
A CategoryItemRenderer that draws individual data items as bars. The example shown here is generated by the BarChartDemo1.java program included in the JFreeChart Demo Collection:

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`static double`	`BAR_OUTLINE_WIDTH_THRESHOLD`	Constant that controls the minimum width before a bar has an outline drawn.
`static double`	`DEFAULT_ITEM_MARGIN`	The default item margin percentage.

Fields inherited from class org.jfree.chart.renderer.AbstractRenderer
DEFAULT_OUTLINE_PAINT, DEFAULT_OUTLINE_STROKE, DEFAULT_PAINT, DEFAULT_SHAPE, DEFAULT_STROKE, DEFAULT_VALUE_LABEL_FONT, DEFAULT_VALUE_LABEL_PAINT, ZERO

Constructor Summary

Constructors
Constructor Description

BarRenderer()
Creates a new bar renderer with default settings.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected double[]`	`calculateBarL0L1(double value)`	Calculates the coordinates for the length of a single bar.
`protected double`	`calculateBarW0(CategoryPlot plot, PlotOrientation orientation, Rectangle2D dataArea, CategoryAxis domainAxis, CategoryItemRendererState state, int row, int column)`	Calculates the coordinate of the first "side" of a bar.
`protected void`	`calculateBarWidth(CategoryPlot plot, Rectangle2D dataArea, int rendererIndex, CategoryItemRendererState state)`	Calculates the bar width and stores it in the renderer state.
`protected double`	`calculateSeriesWidth(double space, CategoryAxis axis, int categories, int series)`	Calculates the available space for each series.
`void`	`drawItem(Graphics2D g2, CategoryItemRendererState state, Rectangle2D dataArea, CategoryPlot plot, CategoryAxis domainAxis, ValueAxis rangeAxis, CategoryDataset dataset, int row, int column, int pass)`	Draws the bar for a single (series, category) data item.
`protected void`	`drawItemLabel(Graphics2D g2, CategoryDataset data, int row, int column, CategoryPlot plot, CategoryItemLabelGenerator generator, Rectangle2D bar, boolean negative)`	Draws an item label.
`boolean`	`equals(Object obj)`	Tests this instance for equality with an arbitrary object.
`Range`	`findRangeBounds(CategoryDataset dataset, boolean includeInterval)`	Returns the range of values the renderer requires to display all the items from the specified dataset.
`BarPainter`	`getBarPainter()`	Returns the bar painter.
`double`	`getBase()`	Returns the base value for the bars.
`static BarPainter`	`getDefaultBarPainter()`	Returns the default bar painter.
`static boolean`	`getDefaultShadowsVisible()`	Returns the default value for the `shadowsVisible` flag.
`GradientPaintTransformer`	`getGradientPaintTransformer()`	Returns the gradient paint transformer (an object used to transform gradient paint objects to fit each bar).
`boolean`	`getIncludeBaseInRange()`	Returns the flag that controls whether or not the base value for the bars is included in the range calculated by `AbstractCategoryItemRenderer.findRangeBounds(CategoryDataset)`.
`double`	`getItemMargin()`	Returns the item margin as a percentage of the available space for all bars.
`org.jfree.chart.legend.LegendItem`	`getLegendItem(int datasetIndex, int series)`	Returns a legend item for a series.
`double`	`getLowerClip()`	Returns the lower clip value.
`double`	`getMaximumBarWidth()`	Returns the maximum bar width, as a percentage of the available drawing space.
`double`	`getMinimumBarLength()`	Returns the minimum bar length (in Java2D units).
`ItemLabelPosition`	`getNegativeItemLabelPositionFallback()`	Returns the fallback position for negative item labels that don't fit within a bar.
`ItemLabelPosition`	`getPositiveItemLabelPositionFallback()`	Returns the fallback position for positive item labels that don't fit within a bar.
`Paint`	`getShadowPaint()`	Returns the shadow paint.
`boolean`	`getShadowsVisible()`	Returns the flag that controls whether or not shadows are drawn for the bars.
`double`	`getShadowXOffset()`	Returns the shadow x-offset.
`double`	`getShadowYOffset()`	Returns the shadow y-offset.
`double`	`getUpperClip()`	Returns the upper clip value.
`CategoryItemRendererState`	`initialise(Graphics2D g2, Rectangle2D dataArea, CategoryPlot plot, int rendererIndex, PlotRenderingInfo info)`	Initialises the renderer and returns a state object that will be passed to subsequent calls to the drawItem method.
`boolean`	`isDrawBarOutline()`	Returns a flag that controls whether or not bar outlines are drawn.
`void`	`setBarPainter(BarPainter painter)`	Sets the bar painter for this renderer and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setBase(double base)`	Sets the base value for the bars and sends a `RendererChangeEvent` to all registered listeners.
`static void`	`setDefaultBarPainter(BarPainter painter)`	Sets the default bar painter.
`static void`	`setDefaultShadowsVisible(boolean visible)`	Sets the default value for the shadows visible flag.
`void`	`setDrawBarOutline(boolean draw)`	Sets the flag that controls whether or not bar outlines are drawn and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setGradientPaintTransformer(GradientPaintTransformer transformer)`	Sets the gradient paint transformer and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setIncludeBaseInRange(boolean include)`	Sets the flag that controls whether or not the base value for the bars is included in the range calculated by `AbstractCategoryItemRenderer.findRangeBounds(CategoryDataset)`.
`void`	`setItemMargin(double percent)`	Sets the item margin and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setMaximumBarWidth(double percent)`	Sets the maximum bar width, which is specified as a percentage of the available space for all bars, and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setMinimumBarLength(double min)`	Sets the minimum bar length and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setNegativeItemLabelPositionFallback(ItemLabelPosition position)`	Sets the fallback position for negative item labels that don't fit within a bar, and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setPositiveItemLabelPositionFallback(ItemLabelPosition position)`	Sets the fallback position for positive item labels that don't fit within a bar, and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setShadowPaint(Paint paint)`	Sets the shadow paint and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setShadowVisible(boolean visible)`	Sets the flag that controls whether or not shadows are drawn by the renderer.
`void`	`setShadowXOffset(double offset)`	Sets the x-offset for the bar shadow and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setShadowYOffset(double offset)`	Sets the y-offset for the bar shadow and sends a `RendererChangeEvent` to all registered listeners.

Methods inherited from class org.jfree.chart.renderer.category.AbstractCategoryItemRenderer
addEntity, addItemEntity, beginElementGroup, calculateDomainMarkerTextAnchorPoint, calculateRangeMarkerTextAnchorPoint, clone, createState, drawBackground, drawDomainGridline, drawDomainMarker, drawItemLabel, drawOutline, drawRangeLine, drawRangeMarker, findRangeBounds, getColumnCount, getDefaultItemLabelGenerator, getDefaultItemURLGenerator, getDefaultToolTipGenerator, getDomainAxis, getDrawingSupplier, getItemLabelGenerator, getItemMiddle, getItemURLGenerator, getLegendItemLabelGenerator, getLegendItems, getLegendItemToolTipGenerator, getLegendItemURLGenerator, getPassCount, getPlot, getRangeAxis, getRowCount, getSeriesItemLabelGenerator, getSeriesItemURLGenerator, getSeriesToolTipGenerator, getToolTipGenerator, hashCode, setDefaultItemLabelGenerator, setDefaultItemLabelGenerator, setDefaultItemURLGenerator, setDefaultItemURLGenerator, setDefaultToolTipGenerator, setDefaultToolTipGenerator, setLegendItemLabelGenerator, setLegendItemToolTipGenerator, setLegendItemURLGenerator, setPlot, setSeriesItemLabelGenerator, setSeriesItemLabelGenerator, setSeriesItemURLGenerator, setSeriesItemURLGenerator, setSeriesToolTipGenerator, setSeriesToolTipGenerator, updateCrosshairValues

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, 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, isItemLabelVisible, isSeriesItemLabelsVisible, isSeriesVisible, isSeriesVisibleInLegend, lookupLegendShape, lookupLegendTextFont, lookupLegendTextPaint, lookupSeriesFillPaint, lookupSeriesOutlinePaint, lookupSeriesOutlineStroke, lookupSeriesPaint, lookupSeriesShape, lookupSeriesStroke, notifyListeners, receive, removeChangeListener, setAutoPopulateSeriesFillPaint, setAutoPopulateSeriesOutlinePaint, setAutoPopulateSeriesOutlineStroke, setAutoPopulateSeriesPaint, setAutoPopulateSeriesShape, setAutoPopulateSeriesStroke, 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, 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.category.CategoryItemRenderer
addChangeListener, 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, setDefaultItemLabelFont, setDefaultItemLabelFont, setDefaultItemLabelPaint, setDefaultItemLabelPaint, setDefaultItemLabelsVisible, setDefaultItemLabelsVisible, setDefaultNegativeItemLabelPosition, setDefaultNegativeItemLabelPosition, setDefaultOutlinePaint, setDefaultOutlinePaint, setDefaultOutlineStroke, setDefaultOutlineStroke, setDefaultPaint, setDefaultPaint, setDefaultPositiveItemLabelPosition, setDefaultPositiveItemLabelPosition, setDefaultSeriesVisible, setDefaultSeriesVisible, setDefaultSeriesVisibleInLegend, setDefaultSeriesVisibleInLegend, setDefaultShape, setDefaultShape, setDefaultStroke, setDefaultStroke, setSeriesCreateEntities, setSeriesCreateEntities, 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

Methods inherited from interface org.jfree.chart.ChartElement
receive

Methods inherited from interface org.jfree.chart.api.PublicCloneable
clone

- Field Detail
  - DEFAULT_ITEM_MARGIN
```
public static final double DEFAULT_ITEM_MARGIN
```
    The default item margin percentage.
    
    See Also:
    
    Constant Field Values
  - BAR_OUTLINE_WIDTH_THRESHOLD
```
public static final double BAR_OUTLINE_WIDTH_THRESHOLD
```
    Constant that controls the minimum width before a bar has an outline drawn.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - BarRenderer
```
public BarRenderer()
```
    Creates a new bar renderer with default settings.
- Method Detail
  - getDefaultBarPainter
```
public static BarPainter getDefaultBarPainter()
```
    Returns the default bar painter.
    
    Returns:
    
    The default bar painter.
  - setDefaultBarPainter
```
public static void setDefaultBarPainter(BarPainter painter)
```
    Sets the default bar painter.
    
    Parameters:
    
    painter - the painter (null not permitted).
  - getDefaultShadowsVisible
```
public static boolean getDefaultShadowsVisible()
```
    Returns the default value for the shadowsVisible flag.
    
    Returns:
    
    A boolean.
    
    See Also:
    
    setDefaultShadowsVisible(boolean)
  - setDefaultShadowsVisible
```
public static void setDefaultShadowsVisible(boolean visible)
```
    Sets the default value for the shadows visible flag.
    
    Parameters:
    
    visible - the new value for the default.
    
    See Also:
    
    getDefaultShadowsVisible()
  - getBase
```
public double getBase()
```
    Returns the base value for the bars. The default value is 0.0.
    
    Returns:
    
    The base value for the bars.
    
    See Also:
    
    setBase(double)
  - setBase
```
public void setBase(double base)
```
    Sets the base value for the bars and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    base - the new base value.
    
    See Also:
    
    getBase()
  - getItemMargin
```
public double getItemMargin()
```
    Returns the item margin as a percentage of the available space for all bars.
    
    Returns:
    
    The margin percentage (where 0.10 is ten percent).
    
    See Also:
    
    setItemMargin(double)
  - setItemMargin
```
public void setItemMargin(double percent)
```
    Sets the item margin and sends a RendererChangeEvent to all registered listeners. The value is expressed as a percentage of the available width for plotting all the bars, with the resulting amount to be distributed between all the bars evenly.
    
    Parameters:
    
    percent - the margin (where 0.10 is ten percent).
    
    See Also:
    
    getItemMargin()
  - isDrawBarOutline
```
public boolean isDrawBarOutline()
```
    Returns a flag that controls whether or not bar outlines are drawn.
    
    Returns:
    
    A boolean.
    
    See Also:
    
    setDrawBarOutline(boolean)
  - setDrawBarOutline
```
public void setDrawBarOutline(boolean draw)
```
    Sets the flag that controls whether or not bar outlines are drawn and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    draw - the flag.
    
    See Also:
    
    isDrawBarOutline()
  - getMaximumBarWidth
```
public double getMaximumBarWidth()
```
    Returns the maximum bar width, as a percentage of the available drawing space.
    
    Returns:
    
    The maximum bar width.
    
    See Also:
    
    setMaximumBarWidth(double)
  - setMaximumBarWidth
```
public void setMaximumBarWidth(double percent)
```
    Sets the maximum bar width, which is specified as a percentage of the available space for all bars, and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    percent - the percent (where 0.05 is five percent).
    
    See Also:
    
    getMaximumBarWidth()
  - getMinimumBarLength
```
public double getMinimumBarLength()
```
    Returns the minimum bar length (in Java2D units). The default value is 0.0.
    
    Returns:
    
    The minimum bar length.
    
    See Also:
    
    setMinimumBarLength(double)
  - setMinimumBarLength
```
public void setMinimumBarLength(double min)
```
    Sets the minimum bar length and sends a RendererChangeEvent to all registered listeners. The minimum bar length is specified in Java2D units, and can be used to prevent bars that represent very small data values from disappearing when drawn on the screen. Typically you would set this to (say) 0.5 or 1.0 Java 2D units. Use this attribute with caution, however, because setting it to a non-zero value will artificially increase the length of bars representing small values, which may misrepresent your data.
    
    Parameters:
    
    min - the minimum bar length (in Java2D units, must be >= 0.0).
    
    See Also:
    
    getMinimumBarLength()
  - getGradientPaintTransformer
```
public GradientPaintTransformer getGradientPaintTransformer()
```
    Returns the gradient paint transformer (an object used to transform gradient paint objects to fit each bar).
    
    Returns:
    
    A transformer (null possible).
    
    See Also:
    
    setGradientPaintTransformer(GradientPaintTransformer)
  - setGradientPaintTransformer
```
public void setGradientPaintTransformer(GradientPaintTransformer transformer)
```
    Sets the gradient paint transformer and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    transformer - the transformer (null permitted).
    
    See Also:
    
    getGradientPaintTransformer()
  - getPositiveItemLabelPositionFallback
```
public ItemLabelPosition getPositiveItemLabelPositionFallback()
```
    Returns the fallback position for positive item labels that don't fit within a bar.
    
    Returns:
    
    The fallback position (null possible).
    
    See Also:
    
    setPositiveItemLabelPositionFallback(ItemLabelPosition)
  - setPositiveItemLabelPositionFallback
```
public void setPositiveItemLabelPositionFallback(ItemLabelPosition position)
```
    Sets the fallback position for positive item labels that don't fit within a bar, and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    position - the position (null permitted).
    
    See Also:
    
    getPositiveItemLabelPositionFallback()
  - getNegativeItemLabelPositionFallback
```
public ItemLabelPosition getNegativeItemLabelPositionFallback()
```
    Returns the fallback position for negative item labels that don't fit within a bar.
    
    Returns:
    
    The fallback position (null possible).
    
    See Also:
    
    setPositiveItemLabelPositionFallback(ItemLabelPosition)
  - setNegativeItemLabelPositionFallback
```
public void setNegativeItemLabelPositionFallback(ItemLabelPosition position)
```
    Sets the fallback position for negative item labels that don't fit within a bar, and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    position - the position (null permitted).
    
    See Also:
    
    getNegativeItemLabelPositionFallback()
  - getIncludeBaseInRange
```
public boolean getIncludeBaseInRange()
```
    Returns the flag that controls whether or not the base value for the bars is included in the range calculated by AbstractCategoryItemRenderer.findRangeBounds(CategoryDataset).
    
    Returns:
    
    true if the base is included in the range, and false otherwise.
    
    See Also:
    
    setIncludeBaseInRange(boolean)
  - setIncludeBaseInRange
```
public void setIncludeBaseInRange(boolean include)
```
    Sets the flag that controls whether or not the base value for the bars is included in the range calculated by AbstractCategoryItemRenderer.findRangeBounds(CategoryDataset). If the flag is changed, a RendererChangeEvent is sent to all registered listeners.
    
    Parameters:
    
    include - the new value for the flag.
    
    See Also:
    
    getIncludeBaseInRange()
  - getBarPainter
```
public BarPainter getBarPainter()
```
    Returns the bar painter.
    
    Returns:
    
    The bar painter (never null).
    
    See Also:
    
    setBarPainter(BarPainter)
  - setBarPainter
```
public void setBarPainter(BarPainter painter)
```
    Sets the bar painter for this renderer and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    painter - the painter (null not permitted).
    
    See Also:
    
    getBarPainter()
  - getShadowsVisible
```
public boolean getShadowsVisible()
```
    Returns the flag that controls whether or not shadows are drawn for the bars.
    
    Returns:
    
    A boolean.
  - setShadowVisible
```
public void setShadowVisible(boolean visible)
```
    Sets the flag that controls whether or not shadows are drawn by the renderer.
    
    Parameters:
    
    visible - the new flag value.
  - getShadowPaint
```
public Paint getShadowPaint()
```
    Returns the shadow paint.
    
    Returns:
    
    The shadow paint.
    
    See Also:
    
    setShadowPaint(Paint)
  - setShadowPaint
```
public void setShadowPaint(Paint paint)
```
    Sets the shadow paint and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    paint - the paint (null not permitted).
    
    See Also:
    
    getShadowPaint()
  - getShadowXOffset
```
public double getShadowXOffset()
```
    Returns the shadow x-offset.
    
    Returns:
    
    The shadow x-offset.
  - setShadowXOffset
```
public void setShadowXOffset(double offset)
```
    Sets the x-offset for the bar shadow and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    offset - the offset.
  - getShadowYOffset
```
public double getShadowYOffset()
```
    Returns the shadow y-offset.
    
    Returns:
    
    The shadow y-offset.
  - setShadowYOffset
```
public void setShadowYOffset(double offset)
```
    Sets the y-offset for the bar shadow and sends a RendererChangeEvent to all registered listeners.
    
    Parameters:
    
    offset - the offset.
  - getLowerClip
```
public double getLowerClip()
```
    Returns the lower clip value. This value is recalculated in the initialise() method.
    
    Returns:
    
    The value.
  - getUpperClip
```
public double getUpperClip()
```
    Returns the upper clip value. This value is recalculated in the initialise() method.
    
    Returns:
    
    The value.
  - initialise
```
public CategoryItemRendererState initialise(Graphics2D g2,
                                            Rectangle2D dataArea,
                                            CategoryPlot plot,
                                            int rendererIndex,
                                            PlotRenderingInfo info)
```
    Initialises the renderer and returns a state object that will be passed to subsequent calls to the drawItem method. This method gets called once at the start of the process of drawing a chart.
    
    Specified by:
    
    initialise in interface CategoryItemRenderer
    
    Overrides:
    
    initialise in class AbstractCategoryItemRenderer
    
    Parameters:
    
    g2 - the graphics device.
    
    dataArea - the area in which the data is to be plotted.
    
    plot - the plot.
    
    rendererIndex - the renderer index.
    
    info - collects chart rendering information for return to caller.
    
    Returns:
    
    The renderer state.
  - calculateBarWidth
```
protected void calculateBarWidth(CategoryPlot plot,
                                 Rectangle2D dataArea,
                                 int rendererIndex,
                                 CategoryItemRendererState state)
```
    Calculates the bar width and stores it in the renderer state.
    
    Parameters:
    
    plot - the plot.
    
    dataArea - the data area.
    
    rendererIndex - the renderer index.
    
    state - the renderer state.
  - calculateBarW0
```
protected double calculateBarW0(CategoryPlot plot,
                                PlotOrientation orientation,
                                Rectangle2D dataArea,
                                CategoryAxis domainAxis,
                                CategoryItemRendererState state,
                                int row,
                                int column)
```
    Calculates the coordinate of the first "side" of a bar. This will be the minimum x-coordinate for a vertical bar, and the minimum y-coordinate for a horizontal bar.
    
    Parameters:
    
    plot - the plot.
    
    orientation - the plot orientation.
    
    dataArea - the data area.
    
    domainAxis - the domain axis.
    
    state - the renderer state (has the bar width precalculated).
    
    row - the row index.
    
    column - the column index.
    
    Returns:
    
    The coordinate.
  - calculateBarL0L1
```
protected double[] calculateBarL0L1(double value)
```
    Calculates the coordinates for the length of a single bar.
    
    Parameters:
    
    value - the value represented by the bar.
    
    Returns:
    
    The coordinates for each end of the bar (or null if the bar is not visible for the current axis range).
  - findRangeBounds
```
public Range findRangeBounds(CategoryDataset dataset,
                             boolean includeInterval)
```
    Returns the range of values the renderer requires to display all the items from the specified dataset. This takes into account the range of values in the dataset, plus the flag that determines whether or not the base value for the bars should be included in the range.
    
    Overrides:
    
    findRangeBounds in class AbstractCategoryItemRenderer
    
    Parameters:
    
    dataset - the dataset (null permitted).
    
    includeInterval - include the interval if the dataset has one?
    
    Returns:
    
    The range (or null if the dataset is null or empty).
  - getLegendItem
```
public org.jfree.chart.legend.LegendItem getLegendItem(int datasetIndex,
                                                       int series)
```
    Returns a legend item for a series.
    
    Specified by:
    
    getLegendItem in interface CategoryItemRenderer
    
    Overrides:
    
    getLegendItem in class AbstractCategoryItemRenderer
    
    Parameters:
    
    datasetIndex - the dataset index (zero-based).
    
    series - the series index (zero-based).
    
    Returns:
    
    The legend item (possibly null).
    
    See Also:
    
    AbstractCategoryItemRenderer.getLegendItems()
  - drawItem
```
public void drawItem(Graphics2D g2,
                     CategoryItemRendererState state,
                     Rectangle2D dataArea,
                     CategoryPlot plot,
                     CategoryAxis domainAxis,
                     ValueAxis rangeAxis,
                     CategoryDataset dataset,
                     int row,
                     int column,
                     int pass)
```
    Draws the bar for a single (series, category) data item.
    
    Specified by:
    
    drawItem in interface CategoryItemRenderer
    
    Parameters:
    
    g2 - the graphics device.
    
    state - the renderer state.
    
    dataArea - the data area.
    
    plot - the plot.
    
    domainAxis - the domain axis.
    
    rangeAxis - the range axis.
    
    dataset - the dataset.
    
    row - the row index (zero-based).
    
    column - the column index (zero-based).
    
    pass - the pass index.
  - calculateSeriesWidth
```
protected double calculateSeriesWidth(double space,
                                      CategoryAxis axis,
                                      int categories,
                                      int series)
```
    Calculates the available space for each series.
    
    Parameters:
    
    space - the space along the entire axis (in Java2D units).
    
    axis - the category axis.
    
    categories - the number of categories.
    
    series - the number of series.
    
    Returns:
    
    The width of one series.
  - drawItemLabel
```
protected void drawItemLabel(Graphics2D g2,
                             CategoryDataset data,
                             int row,
                             int column,
                             CategoryPlot plot,
                             CategoryItemLabelGenerator generator,
                             Rectangle2D bar,
                             boolean negative)
```
    Draws an item label. This method is overridden so that the bar can be used to calculate the label anchor point.
    
    Parameters:
    
    g2 - the graphics device.
    
    data - the dataset.
    
    row - the row.
    
    column - the column.
    
    plot - the plot.
    
    generator - the label generator.
    
    bar - the bar.
    
    negative - a flag indicating a negative value.
  - equals
```
public boolean equals(Object obj)
```
    Tests this instance for equality with an arbitrary object.
    
    Overrides:
    
    equals in class AbstractCategoryItemRenderer
    
    Parameters:
    
    obj - the object (null permitted).
    
    Returns:
    
    A boolean.

Class BarRenderer

Field Summary

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

Constructor Summary

Method Summary

Methods inherited from class org.jfree.chart.renderer.category.AbstractCategoryItemRenderer

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

Methods inherited from class java.lang.Object

Methods inherited from interface org.jfree.chart.renderer.category.CategoryItemRenderer

Methods inherited from interface org.jfree.chart.ChartElement

Methods inherited from interface org.jfree.chart.api.PublicCloneable

Field Detail

DEFAULT_ITEM_MARGIN

BAR_OUTLINE_WIDTH_THRESHOLD

Constructor Detail

BarRenderer

Method Detail

getDefaultBarPainter

setDefaultBarPainter

getDefaultShadowsVisible

setDefaultShadowsVisible

getBase

setBase

getItemMargin

setItemMargin

isDrawBarOutline

setDrawBarOutline

getMaximumBarWidth

setMaximumBarWidth

getMinimumBarLength

setMinimumBarLength

getGradientPaintTransformer

setGradientPaintTransformer

getPositiveItemLabelPositionFallback

setPositiveItemLabelPositionFallback

getNegativeItemLabelPositionFallback

setNegativeItemLabelPositionFallback

getIncludeBaseInRange

setIncludeBaseInRange

getBarPainter

setBarPainter

getShadowsVisible

setShadowVisible

getShadowPaint

setShadowPaint

getShadowXOffset

setShadowXOffset

getShadowYOffset

setShadowYOffset

getLowerClip

getUpperClip

initialise

calculateBarWidth

calculateBarW0

calculateBarL0L1

findRangeBounds

getLegendItem

drawItem

calculateSeriesWidth

drawItemLabel

equals