com.jrefinery.chart
Class VerticalIntervalBarRenderer

java.lang.Object
  extended by com.jrefinery.chart.AbstractCategoryItemRenderer
      extended by com.jrefinery.chart.BarRenderer
          extended by 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.


Copyright © 2003 MBARI.

The Monterey Bay Aquarium Research Institute (MBARI) provides this documentation and code "as is", with no warranty, express or implied, of its quality or consistency. It is provided without support and without obligation on the part of MBARI to assist in its use, correction, modification, or enhancement.