com.jrefinery.chart
Class VerticalIntervalBarRenderer

java.lang.Object
  |
  +--com.jrefinery.chart.AbstractRenderer
        |
        +--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.

Author:
JB

Fields inherited from class com.jrefinery.chart.BarRenderer
BAR_OUTLINE_WIDTH_THRESHOLD, categoryGapSpan, categorySpan, itemGapSpan, itemSpan, itemWidth, lowerClip, upperClip, zeroInJava2D
 
Constructor Summary
VerticalIntervalBarRenderer()
          Constructs a new renderer.
VerticalIntervalBarRenderer(CategoryToolTipGenerator toolTipGenerator)
          Constructs a new renderer.
VerticalIntervalBarRenderer(CategoryToolTipGenerator toolTipGenerator, CategoryURLGenerator urlGenerator)
          Constructs a new renderer.
VerticalIntervalBarRenderer(CategoryURLGenerator urlGenerator)
          Constructs a new renderer.
 
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 marker for 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, ValueAxis axis, 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, getCategoriesPaint, getCategoryPaint, getDataClipRegion, getLegendItem, getPlot, getToolTipGenerator, getURLGenerator, getUseCategoriesPaint, setCategoriesPaint, setPlot, setToolTipGenerator, setURLGenerator
 
Methods inherited from class com.jrefinery.chart.AbstractRenderer
addPropertyChangeListener, firePropertyChanged, getInfo, removePropertyChangeListener, setInfo
 
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, getLegendItem, getPlot, isStacked, setPlot
 

Constructor Detail

VerticalIntervalBarRenderer

public VerticalIntervalBarRenderer()
Constructs a new renderer.

VerticalIntervalBarRenderer

public VerticalIntervalBarRenderer(CategoryToolTipGenerator toolTipGenerator)
Constructs a new renderer.
Parameters:
toolTipGenerator - the tool tip generator.

VerticalIntervalBarRenderer

public VerticalIntervalBarRenderer(CategoryURLGenerator urlGenerator)
Constructs a new renderer.
Parameters:
urlGenerator - the url generator.

VerticalIntervalBarRenderer

public VerticalIntervalBarRenderer(CategoryToolTipGenerator toolTipGenerator,
                                   CategoryURLGenerator urlGenerator)
Constructs a new renderer.
Parameters:
toolTipGenerator - the tool tip generator.
Method Detail

initialise

public void initialise(java.awt.Graphics2D g2,
                       java.awt.geom.Rectangle2D dataArea,
                       CategoryPlot plot,
                       ValueAxis axis,
                       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.
axis - the range axis.
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)
Draws a marker for the range axis.

A marker is a constant value, usually represented by a line.

Specified by:
drawRangeMarker in interface CategoryItemRenderer
Parameters:
g2 - the graphics device.
plot - the plot.
axis - the range axis.
marker - the marker to be drawn.
axisDataArea - the area inside the axes.
dataClipRegion - the data clip area.

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.
Overrides:
hasItemGaps in class BarRenderer
Returns:
true.

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.
Overrides:
barWidthsPerCategory in class BarRenderer
Parameters:
data - the dataset.
Returns:
the number of data series.