com.jjoe64.graphview.series

Class BarGraphSeries<E extends DataPointInterface>

java.lang.Object

com.jjoe64.graphview.series.BaseSeries<E>

com.jjoe64.graphview.series.BarGraphSeries<E>

All Implemented Interfaces:

Series<E>

public class BarGraphSeries<E extends DataPointInterface>
extends BaseSeries<E>

Series with Bars to visualize the data. The Bars are always vertical.

Field Summary

Fields inherited from class com.jjoe64.graphview.series.BaseSeries

mOnDataPointTapListener

Constructor Summary

Constructors

Constructor and Description
BarGraphSeries() creates bar series without any data
BarGraphSeries(E[] data) creates bar series with data

Method Summary

Modifier and Type	Method and Description
void	draw(GraphView graphView, Canvas canvas, boolean isSecondScale) draws the bars on the canvas
void	drawSelection(GraphView mGraphView, Canvas canvas, boolean b, DataPointInterface value)
protected E	findDataPoint(float x, float y) find the corresponding data point by coordinates.
Paint	getCustomPaint() custom paint that can be used.
double	getDataWidth()
int	getSpacing()
ValueDependentColor<E>	getValueDependentColor()
int	getValuesOnTopColor()
float	getValuesOnTopSize()
boolean	isAnimated()
boolean	isDrawValuesOnTop()
protected void	resetDataPoints() resets the cached coordinates of the bars
void	setAnimated(boolean animated) draw the series with an animation
void	setCustomPaint(Paint mCustomPaint) custom paint that can be used.
void	setDataWidth(double mDataWidth)
void	setDrawValuesOnTop(boolean mDrawValuesOnTop)
void	setSpacing(int mSpacing)
void	setValueDependentColor(ValueDependentColor<E> mValueDependentColor) set a hook to make the color of the bars depending on the actually value/data.
void	setValuesOnTopColor(int mValuesOnTopColor)
void	setValuesOnTopSize(float mValuesOnTopSize)

Methods inherited from class com.jjoe64.graphview.series.BaseSeries

appendData, appendData, checkValueOrder, clearCursorModeCache, clearReference, findDataPointAtX, getColor, getHighestValueX, getHighestValueY, getLowestValueX, getLowestValueY, getTitle, getValues, isEmpty, onGraphViewAttached, onTap, registerDataPoint, resetData, setColor, setOnDataPointTapListener, setTitle

Methods inherited from class java.lang.Object

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

Constructor Detail

BarGraphSeries

public BarGraphSeries()

creates bar series without any data

BarGraphSeries

public BarGraphSeries(E[] data)

creates bar series with data

Parameters:

data - data points important: array has to be sorted from lowest x-value to the highest

Method Detail

draw

public void draw(GraphView graphView,
                 Canvas canvas,
                 boolean isSecondScale)

draws the bars on the canvas

Parameters:

graphView - corresponding graphview

canvas - canvas

isSecondScale - whether we are plotting the second scale or not

getValueDependentColor

public ValueDependentColor<E> getValueDependentColor()

Returns:

the hook to generate value-dependent color. default null

setValueDependentColor

public void setValueDependentColor(ValueDependentColor<E> mValueDependentColor)

set a hook to make the color of the bars depending on the actually value/data.

Parameters:

mValueDependentColor - hook null to disable

getSpacing

public int getSpacing()

Returns:

the spacing between the bars in percentage

setSpacing

public void setSpacing(int mSpacing)

Parameters:

mSpacing - spacing between the bars in percentage. 0 => no spacing 100 => the space between the bars is as big as the bars itself

getDataWidth

public double getDataWidth()

Returns:

the interval between data points

setDataWidth

public void setDataWidth(double mDataWidth)

Parameters:

mDataWidth - width of a data point (sampling period) 0 => no prior knowledge of sampling period, interval between bars will be calculated automatically >0 => value is the total distance from one bar to another

isDrawValuesOnTop

public boolean isDrawValuesOnTop()

Returns:

whether the values should be drawn above the bars

setDrawValuesOnTop

public void setDrawValuesOnTop(boolean mDrawValuesOnTop)

Parameters:

mDrawValuesOnTop - flag whether the values should drawn above the bars as text

getValuesOnTopColor

public int getValuesOnTopColor()

Returns:

font color of the values on top of the bars

See Also:

setDrawValuesOnTop(boolean)

setValuesOnTopColor

public void setValuesOnTopColor(int mValuesOnTopColor)

Parameters:

mValuesOnTopColor - the font color of the values on top of the bars

See Also:

setDrawValuesOnTop(boolean)

getValuesOnTopSize

public float getValuesOnTopSize()

Returns:

font size of the values above the bars

See Also:

setDrawValuesOnTop(boolean)

setValuesOnTopSize

public void setValuesOnTopSize(float mValuesOnTopSize)

Parameters:

mValuesOnTopSize - font size of the values above the bars

See Also:

setDrawValuesOnTop(boolean)

resetDataPoints

protected void resetDataPoints()

resets the cached coordinates of the bars

Overrides:

resetDataPoints in class BaseSeries<E extends DataPointInterface>

findDataPoint

protected E findDataPoint(float x,
                          float y)

find the corresponding data point by coordinates.

Overrides:

findDataPoint in class BaseSeries<E extends DataPointInterface>

Parameters:

x - pixels

y - pixels

Returns:

datapoint or null

getCustomPaint

public Paint getCustomPaint()

custom paint that can be used. this will ignore the value dependent color.

Returns:

custom paint or null

setCustomPaint

public void setCustomPaint(Paint mCustomPaint)

custom paint that can be used. this will ignore the value dependent color.

Parameters:

mCustomPaint - custom paint to use or null

setAnimated

public void setAnimated(boolean animated)

draw the series with an animation

Parameters:

animated - animation activated or not

isAnimated

public boolean isAnimated()

Returns:

rendering is animated or not

drawSelection

public void drawSelection(GraphView mGraphView,
                          Canvas canvas,
                          boolean b,
                          DataPointInterface value)

Specified by:

drawSelection in class BaseSeries<E extends DataPointInterface>