com.github.mikephil.charting.renderer

Class LineChartRenderer

java.lang.Object

com.github.mikephil.charting.renderer.Renderer

com.github.mikephil.charting.renderer.DataRenderer

com.github.mikephil.charting.renderer.BarLineScatterCandleBubbleRenderer

com.github.mikephil.charting.renderer.LineScatterCandleRadarRenderer

com.github.mikephil.charting.renderer.LineRadarRenderer

com.github.mikephil.charting.renderer.LineChartRenderer

public class LineChartRenderer
extends LineRadarRenderer

Nested Class Summary

Nested classes/interfaces inherited from class com.github.mikephil.charting.renderer.BarLineScatterCandleBubbleRenderer

BarLineScatterCandleBubbleRenderer.XBounds

Field Summary

Fields

Modifier and Type	Field and Description
protected android.graphics.Path	cubicFillPath
protected android.graphics.Path	cubicPath
protected android.graphics.Canvas	mBitmapCanvas on this canvas, the paths are rendered, it is initialized with the pathBitmap
protected android.graphics.Bitmap.Config	mBitmapConfig the bitmap configuration to be used
protected LineDataProvider	mChart
protected android.graphics.Paint	mCirclePaintInner paint for the inner circle of the value indicators
protected java.lang.ref.WeakReference<android.graphics.Bitmap>	mDrawBitmap Bitmap object used for drawing the paths (otherwise they are too long if rendered directly on the canvas)
protected android.graphics.Path	mGenerateFilledPathBuffer

Fields inherited from class com.github.mikephil.charting.renderer.BarLineScatterCandleBubbleRenderer

mXBounds

Fields inherited from class com.github.mikephil.charting.renderer.DataRenderer

mAnimator, mDrawPaint, mHighlightPaint, mRenderPaint, mValuePaint

Fields inherited from class com.github.mikephil.charting.renderer.Renderer

mViewPortHandler

Constructor Summary

Constructors

Constructor and Description
LineChartRenderer(LineDataProvider chart, ChartAnimator animator, ViewPortHandler viewPortHandler)

Method Summary

Modifier and Type	Method and Description
protected void	drawCircles(android.graphics.Canvas c)
protected void	drawCubicBezier(ILineDataSet dataSet)
protected void	drawCubicFill(android.graphics.Canvas c, ILineDataSet dataSet, android.graphics.Path spline, Transformer trans, BarLineScatterCandleBubbleRenderer.XBounds bounds)
void	drawData(android.graphics.Canvas c) Draws the actual data in form of lines, bars, ...
protected void	drawDataSet(android.graphics.Canvas c, ILineDataSet dataSet)
void	drawExtras(android.graphics.Canvas c) Draws any kind of additional information (e.g.
void	drawHighlighted(android.graphics.Canvas c, Highlight[] indices) Draws all highlight indicators for the values that are currently highlighted.
protected void	drawHorizontalBezier(ILineDataSet dataSet)
protected void	drawLinear(android.graphics.Canvas c, ILineDataSet dataSet) Draws a normal line.
protected void	drawLinearFill(android.graphics.Canvas c, ILineDataSet dataSet, Transformer trans, BarLineScatterCandleBubbleRenderer.XBounds bounds) Draws a filled linear path on the canvas.
void	drawValue(android.graphics.Canvas c, java.lang.String valueText, float x, float y, int color) Draws the value of the given entry by using the provided IValueFormatter.
void	drawValues(android.graphics.Canvas c) Loops over all Entrys and draws their values.
android.graphics.Bitmap.Config	getBitmapConfig() Returns the Bitmap.Config that is used by this renderer.
void	initBuffers() Initializes the buffers used for rendering with a new size.
void	releaseBitmap() Releases the drawing bitmap.
void	setBitmapConfig(android.graphics.Bitmap.Config config) Sets the Bitmap.Config to be used by this renderer.

Methods inherited from class com.github.mikephil.charting.renderer.LineRadarRenderer

drawFilledPath, drawFilledPath

Methods inherited from class com.github.mikephil.charting.renderer.LineScatterCandleRadarRenderer

drawHighlightLines

Methods inherited from class com.github.mikephil.charting.renderer.BarLineScatterCandleBubbleRenderer

isInBoundsX, shouldDrawValues

Methods inherited from class com.github.mikephil.charting.renderer.DataRenderer

applyValueTextStyle, getPaintHighlight, getPaintRender, getPaintValues, isDrawingValuesAllowed

Methods inherited from class java.lang.Object

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

Field Detail

mChart

protected LineDataProvider mChart

mCirclePaintInner

protected android.graphics.Paint mCirclePaintInner

paint for the inner circle of the value indicators

mDrawBitmap

protected java.lang.ref.WeakReference<android.graphics.Bitmap> mDrawBitmap

Bitmap object used for drawing the paths (otherwise they are too long if rendered directly on the canvas)

mBitmapCanvas

protected android.graphics.Canvas mBitmapCanvas

on this canvas, the paths are rendered, it is initialized with the pathBitmap

mBitmapConfig

protected android.graphics.Bitmap.Config mBitmapConfig

the bitmap configuration to be used

cubicPath

protected android.graphics.Path cubicPath

cubicFillPath

protected android.graphics.Path cubicFillPath

mGenerateFilledPathBuffer

protected android.graphics.Path mGenerateFilledPathBuffer

Constructor Detail

LineChartRenderer

public LineChartRenderer(LineDataProvider chart,
                         ChartAnimator animator,
                         ViewPortHandler viewPortHandler)

Method Detail

initBuffers

public void initBuffers()

Description copied from class: DataRenderer

Initializes the buffers used for rendering with a new size. Since this method performs memory allocations, it should only be called if necessary.

Specified by:

initBuffers in class DataRenderer

drawData

public void drawData(android.graphics.Canvas c)

Description copied from class: DataRenderer

Draws the actual data in form of lines, bars, ... depending on Renderer subclass.

Specified by:

drawData in class DataRenderer

drawDataSet

protected void drawDataSet(android.graphics.Canvas c,
                           ILineDataSet dataSet)

drawHorizontalBezier

protected void drawHorizontalBezier(ILineDataSet dataSet)

drawCubicBezier

protected void drawCubicBezier(ILineDataSet dataSet)

drawCubicFill

protected void drawCubicFill(android.graphics.Canvas c,
                             ILineDataSet dataSet,
                             android.graphics.Path spline,
                             Transformer trans,
                             BarLineScatterCandleBubbleRenderer.XBounds bounds)

drawLinear

protected void drawLinear(android.graphics.Canvas c,
                          ILineDataSet dataSet)

Draws a normal line.

Parameters:

c -

dataSet -

drawLinearFill

protected void drawLinearFill(android.graphics.Canvas c,
                              ILineDataSet dataSet,
                              Transformer trans,
                              BarLineScatterCandleBubbleRenderer.XBounds bounds)

Draws a filled linear path on the canvas.

Parameters:

c -

dataSet -

trans -

bounds -

drawValues

public void drawValues(android.graphics.Canvas c)

Description copied from class: DataRenderer

Loops over all Entrys and draws their values.

Specified by:

drawValues in class DataRenderer

drawValue

public void drawValue(android.graphics.Canvas c,
                      java.lang.String valueText,
                      float x,
                      float y,
                      int color)

Description copied from class: DataRenderer

Draws the value of the given entry by using the provided IValueFormatter.

Specified by:

drawValue in class DataRenderer

Parameters:

c - canvas

valueText - label to draw

x - position

y - position

drawExtras

public void drawExtras(android.graphics.Canvas c)

Description copied from class: DataRenderer

Draws any kind of additional information (e.g. line-circles).

Specified by:

drawExtras in class DataRenderer

drawCircles

protected void drawCircles(android.graphics.Canvas c)

drawHighlighted

public void drawHighlighted(android.graphics.Canvas c,
                            Highlight[] indices)

Description copied from class: DataRenderer

Draws all highlight indicators for the values that are currently highlighted.

Specified by:

drawHighlighted in class DataRenderer

indices - the highlighted values

setBitmapConfig

public void setBitmapConfig(android.graphics.Bitmap.Config config)

Sets the Bitmap.Config to be used by this renderer. Default: Bitmap.Config.ARGB_8888 Use Bitmap.Config.ARGB_4444 to consume less memory.

Parameters:

config -

getBitmapConfig

public android.graphics.Bitmap.Config getBitmapConfig()

Returns the Bitmap.Config that is used by this renderer.

Returns:

releaseBitmap

public void releaseBitmap()

Releases the drawing bitmap. This should be called when LineChart.onDetachedFromWindow().