Class RangeBarChart

java.lang.Object

com.codename1.charts.views.AbstractChart

com.codename1.charts.views.XYChart

com.codename1.charts.views.BarChart

com.codename1.charts.views.RangeBarChart

Direct Known Subclasses:

RangeStackedBarChart

public class RangeBarChart
extends BarChart

Extends BarChart to support values that represent ranges rather than single points. Each bar is drawn from the lower value to the upper value in the dataset.

Use this chart with an XYMultipleSeriesDataset containing XYSeries instances where consecutive entries form the minimum/maximum pair for a category.

Nested Class Summary

Nested classes/interfaces inherited from class BarChart

BarChart.Type

Field Summary

Fields

Modifier and Type	Field	Description
static final String	TYPE	The chart type.

Fields inherited from class BarChart

mType

Fields inherited from class XYChart

mDataset, mRenderer

Constructor Summary

Constructors

Constructor	Description
RangeBarChart(XYMultipleSeriesDataset dataset, XYMultipleSeriesRenderer renderer, BarChart.Type type)	Builds a new range bar chart instance.

Method Summary

Modifier and Type	Method	Description
protected void	drawChartValuesText(Canvas canvas, XYSeries series, XYSeriesRenderer renderer, Paint paint, List<Float> points, int seriesIndex, int startIndex)	The graphical representation of the series values as text.
void	drawSeries(Canvas canvas, Paint paint, List<Float> points, XYSeriesRenderer seriesRenderer, float yAxisValue, int seriesIndex, int startIndex)	The graphical representation of a series.
String	getChartType()	Returns the chart type identifier.
protected float	getCoeficient()	Returns the value of a constant used to calculate the half-distance.

Methods inherited from class BarChart

clickableAreasForPoints, drawBar, drawBar, drawLegendShape, getDefaultMinimum, getGradientPartialColor, getHalfDiffX, getLegendShapeWidth, isRenderNullValues

Methods inherited from class XYChart

draw, drawPoints, drawSeries, drawText, drawXLabels, drawXTextLabels, drawYLabels, getCalcRange, getDataset, getPointsChart, getRenderer, getScreenR, getSeriesAndPointForScreenCoordinate, getXLabels, getYLabels, isRenderPoints, setCalcRange, setDatasetRenderer, setScreenR, toRealPoint, toRealPoint, toScreenPoint, toScreenPoint

Methods inherited from class AbstractChart

calculateDrawPoints, drawBackground, drawLabel, drawLegend, drawPath, drawPath, drawString, getExceed, getLabel, getLegendSize, isNullValue, isVertical

Methods inherited from class Object

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

Field Details

TYPE

public static final String TYPE

The chart type.

See Also:

• Constant Field Values

Constructor Details

RangeBarChart

public RangeBarChart(XYMultipleSeriesDataset dataset,
 XYMultipleSeriesRenderer renderer,
 BarChart.Type type)

Builds a new range bar chart instance.

Parameters

• dataset: the multiple series dataset

• renderer: the multiple series renderer

• type: the range bar chart type

Method Details

drawSeries

public void drawSeries(Canvas canvas,
 Paint paint,
 List<Float> points,
 XYSeriesRenderer seriesRenderer,
 float yAxisValue,
 int seriesIndex,
 int startIndex)

The graphical representation of a series.

Parameters

• canvas: the canvas to paint to

• paint: the paint to be used for drawing

• points: the array of points to be used for drawing the series

• seriesRenderer: the series renderer

• yAxisValue: the minimum value of the y axis

• seriesIndex: the index of the series currently being drawn

• startIndex: the start index of the rendering points

Overrides:

drawSeries in class BarChart

drawChartValuesText

protected void drawChartValuesText(Canvas canvas,
 XYSeries series,
 XYSeriesRenderer renderer,
 Paint paint,
 List<Float> points,
 int seriesIndex,
 int startIndex)

The graphical representation of the series values as text.

Parameters

• canvas: the canvas to paint to

• series: the series to be painted

• renderer: the series renderer

• paint: the paint to be used for drawing

• points: the array of points to be used for drawing the series

• seriesIndex: the index of the series currently being drawn

• startIndex: the start index of the rendering points

Overrides:

drawChartValuesText in class BarChart

getCoeficient

protected float getCoeficient()

Returns the value of a constant used to calculate the half-distance.

Returns

the constant value

Overrides:

getCoeficient in class BarChart

getChartType

public String getChartType()

Returns the chart type identifier.

Returns

the chart type

Overrides:

getChartType in class BarChart