com.jrefinery.chart
Class VerticalIntervalBarRenderer

java.lang.Object
  com.jrefinery.chart.AbstractCategoryItemRenderer
      com.jrefinery.chart.BarRenderer
          com.jrefinery.chart.VerticalIntervalBarRenderer

All Implemented Interfaces:

CategoryItemRenderer

public class VerticalIntervalBarRenderer
extends BarRenderer
implements CategoryItemRenderer

A renderer that handles the drawing of bars for a vertical bar plot where each bar has a high and low value.

Field Summary

Fields inherited from class com.jrefinery.chart.BarRenderer

BAR_OUTLINE_WIDTH_THRESHOLD, categoryGapSpan, categorySpan, itemGapSpan, itemSpan, itemWidth, zeroInJava2D

Fields inherited from class com.jrefinery.chart.AbstractCategoryItemRenderer

info, toolTipGenerator

Constructor Summary

VerticalIntervalBarRenderer()

VerticalIntervalBarRenderer(com.jrefinery.chart.tooltips.CategoryToolTipGenerator toolTipGenerator)

Method Summary

int	barWidthsPerCategory(CategoryDataset data) Returns the number of bar-widths displayed in each category.
void	drawCategoryItem(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, ValueAxis axis, CategoryDataset data, int series, java.lang.Object category, int categoryIndex, java.lang.Object previousCategory) Draws the bar for a single (series, category) data item.
void	drawRangeMarker(java.awt.Graphics2D g2, CategoryPlot plot, ValueAxis axis, Marker marker, java.awt.geom.Rectangle2D axisDataArea, java.awt.Shape dataClipRegion) Draws a line (or some other marker) to indicate a certain value on the range axis.
boolean	hasItemGaps() Returns true, since for this renderer there are gaps between the items in one category.
void	initialise(java.awt.Graphics2D g2, java.awt.geom.Rectangle2D dataArea, CategoryPlot plot, CategoryDataset data, ChartRenderingInfo info) Initialises the renderer.

Methods inherited from class com.jrefinery.chart.BarRenderer

calculateCategoryAndItemSpans, isStacked

Methods inherited from class com.jrefinery.chart.AbstractCategoryItemRenderer

drawPlotBackground, getAxisArea, getDataClipRegion, getToolTipGenerator, setToolTipGenerator

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.jrefinery.chart.CategoryItemRenderer

drawPlotBackground, getAxisArea, getDataClipRegion, isStacked

Constructor Detail

VerticalIntervalBarRenderer

public VerticalIntervalBarRenderer()

VerticalIntervalBarRenderer

public VerticalIntervalBarRenderer(com.jrefinery.chart.tooltips.CategoryToolTipGenerator toolTipGenerator)

Method Detail

initialise

public void initialise(java.awt.Graphics2D g2,
                       java.awt.geom.Rectangle2D dataArea,
                       CategoryPlot plot,
                       CategoryDataset data,
                       ChartRenderingInfo info)

Initialises the renderer.

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 BarRenderer

Parameters:

g2 - The graphics device.

dataArea - The area in which the data is to be plotted.

plot - The plot.

data - The data.

info - Collects chart rendering information for return to caller.

drawRangeMarker

public void drawRangeMarker(java.awt.Graphics2D g2,
                            CategoryPlot plot,
                            ValueAxis axis,
                            Marker marker,
                            java.awt.geom.Rectangle2D axisDataArea,
                            java.awt.Shape dataClipRegion)

Description copied from interface: CategoryItemRenderer

Draws a line (or some other marker) to indicate a certain value on the range axis.

Specified by:

drawRangeMarker in interface CategoryItemRenderer

Parameters:

g2 - The graphics device.

plot - The plot.

axis - The value axis.

marker - The marker.

axisDataArea - The area defined by the axes.

dataClipRegion - The data clip region.

drawCategoryItem

public void drawCategoryItem(java.awt.Graphics2D g2,
                             java.awt.geom.Rectangle2D dataArea,
                             CategoryPlot plot,
                             ValueAxis axis,
                             CategoryDataset data,
                             int series,
                             java.lang.Object category,
                             int categoryIndex,
                             java.lang.Object previousCategory)

Draws the bar for a single (series, category) data item.

Specified by:

drawCategoryItem in interface CategoryItemRenderer

Parameters:

g2 - The graphics device.

dataArea - The data area.

plot - The plot.

axis - The range axis.

data - The data.

series - The series number (zero-based index).

category - The category.

categoryIndex - The category number (zero-based index).

previousCategory - The previous category.

hasItemGaps

public boolean hasItemGaps()

Returns true, since for this renderer there are gaps between the items in one category.

Specified by:

hasItemGaps in class BarRenderer

barWidthsPerCategory

public int barWidthsPerCategory(CategoryDataset data)

Returns the number of bar-widths displayed in each category. For this renderer, there is one bar per series, so we return the number of series.

Specified by:

barWidthsPerCategory in class BarRenderer

Parameters:

data - The dataset.