org.jfree.chart.renderer.category.LevelRenderer

All Implemented Interfaces:: Serializable, Cloneable, LegendItemSource, CategoryItemRenderer, PublicCloneable

public class LevelRenderer
extends AbstractCategoryItemRenderer
implements Cloneable, PublicCloneable, Serializable

A CategoryItemRenderer that draws individual data items as horizontal lines, spaced in the same way as bars in a bar chart. The example shown here is generated by the OverlaidBarChartDemo2.java program included in the JFreeChart Demo Collection:

See Also:: Serialized Form

Field Summary

Fields

Modifier and Type Field Description

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

LevelRenderer()
Creates a new renderer with default settings.

Method Summary

Modifier and Type	Method	Description
`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`	`calculateItemWidth(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.
`boolean`	`equals(Object obj)`	Tests an object for equality with this instance.
`double`	`getItemMargin()`	Returns the item margin.
`double`	`getItemMiddle(Comparable rowKey, Comparable columnKey, CategoryDataset dataset, CategoryAxis axis, Rectangle2D area, RectangleEdge edge)`	Returns the Java2D coordinate for the middle of the specified data item.
`double`	`getMaximumItemWidth()`	Returns the maximum width, as a percentage of the available drawing space.
`int`	`hashCode()`	Returns a hash code for this instance.
`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.
`void`	`setItemMargin(double percent)`	Sets the item margin and sends a `RendererChangeEvent` to all registered listeners.
`void`	`setMaximumItemWidth(double percent)`	Sets the maximum item width, which is specified as a percentage of the available space for all items, 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, findRangeBounds, getColumnCount, getDefaultItemLabelGenerator, getDefaultItemURLGenerator, getDefaultToolTipGenerator, getDomainAxis, getDrawingSupplier, getItemLabelGenerator, getItemURLGenerator, getLegendItem, getLegendItemLabelGenerator, getLegendItems, getLegendItemToolTipGenerator, getLegendItemURLGenerator, getPassCount, getPlot, getRangeAxis, getRowCount, getSeriesItemLabelGenerator, getSeriesItemURLGenerator, getSeriesToolTipGenerator, getToolTipGenerator, 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, 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.util.PublicCloneable

clone

Field Details
- DEFAULT_ITEM_MARGIN
  
  public static final double DEFAULT_ITEM_MARGIN
  
  The default item margin percentage.
  
  See Also:
  
  Constant Field Values
Constructor Details
- LevelRenderer
  
  public LevelRenderer()
  
  Creates a new renderer with default settings.
Method Details
- getItemMargin
  
  public double getItemMargin()
  
  Returns the item margin.
  
  Returns:
  
  The margin.
  
  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 new margin.
  
  See Also:
  
  getItemMargin()
- getMaximumItemWidth
  
  public double getMaximumItemWidth()
  
  Returns the maximum width, as a percentage of the available drawing space.
  
  Returns:
  
  The maximum width.
  
  See Also:
  
  setMaximumItemWidth(double)
- setMaximumItemWidth
  
  public void setMaximumItemWidth(double percent)
  
  Sets the maximum item width, which is specified as a percentage of the available space for all items, and sends a RendererChangeEvent to all registered listeners.
  
  Parameters:
  
  percent - the percent.
  
  See Also:
  
  getMaximumItemWidth()
- 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.
- calculateItemWidth
  
  protected void calculateItemWidth(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.
- 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.
- getItemMiddle
  
  public double getItemMiddle(Comparable rowKey, Comparable columnKey, CategoryDataset dataset, CategoryAxis axis, Rectangle2D area, RectangleEdge edge)
  
  Returns the Java2D coordinate for the middle of the specified data item.
  
  Specified by:
  
  getItemMiddle in interface CategoryItemRenderer
  
  Overrides:
  
  getItemMiddle in class AbstractCategoryItemRenderer
  
  Parameters:
  
  rowKey - the row key.
  
  columnKey - the column key.
  
  dataset - the dataset.
  
  axis - the axis.
  
  area - the drawing area.
  
  edge - the edge along which the axis lies.
  
  Returns:
  
  The Java2D coordinate.
  
  Since:
  
  1.0.11
- equals
  
  public boolean equals(Object obj)
  
  Tests an object for equality with this instance.
  
  Overrides:
  
  equals in class AbstractCategoryItemRenderer
  
  Parameters:
  
  obj - the object (null permitted).
  
  Returns:
  
  A boolean.
- hashCode
  
  public int hashCode()
  
  Returns a hash code for this instance.
  
  Overrides:
  
  hashCode in class AbstractCategoryItemRenderer
  
  Returns:
  
  A hash code.

Class LevelRenderer

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.util.PublicCloneable

Field Details

Constructor Details

Method Details