lecho.lib.hellocharts.renderer

Class LineChartRenderer

java.lang.Object

lecho.lib.hellocharts.renderer.AbstractChartRenderer

lecho.lib.hellocharts.renderer.LineChartRenderer

All Implemented Interfaces:

ChartRenderer

Direct Known Subclasses:

PreviewLineChartRenderer

public class LineChartRenderer
extends AbstractChartRenderer

Renderer for line chart. Can draw lines, cubic lines, filled area chart and scattered chart.

Field Summary

Fields inherited from class lecho.lib.hellocharts.renderer.AbstractChartRenderer

chart, computator, DEFAULT_LABEL_MARGIN_DP, density, fontMetrics, isValueLabelBackgroundAuto, isValueLabelBackgroundEnabled, isViewportCalculationEnabled, labelBackgroundPaint, labelBackgroundRect, labelBuffer, labelMargin, labelOffset, labelPaint, scaledDensity, selectedValue

Constructor Summary

Constructors

Constructor and Description
LineChartRenderer(android.content.Context context, Chart chart, LineChartDataProvider dataProvider)

Method Summary

Modifier and Type	Method and Description
boolean	checkTouch(float touchX, float touchY) Checks if given pixel coordinates corresponds to any chart value.
void	draw(android.graphics.Canvas canvas) Draw chart data.
void	drawUnclipped(android.graphics.Canvas canvas) Draw chart data that should not be clipped to contentRect area.
void	onChartDataChanged()
void	onChartSizeChanged()
void	onChartViewportChanged()

Methods inherited from class lecho.lib.hellocharts.renderer.AbstractChartRenderer

clearTouch, drawLabelTextAndBackground, getCurrentViewport, getMaximumViewport, getSelectedValue, isTouched, isViewportCalculationEnabled, resetRenderer, selectValue, setCurrentViewport, setMaximumViewport, setViewportCalculationEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

LineChartRenderer

public LineChartRenderer(android.content.Context context,
                         Chart chart,
                         LineChartDataProvider dataProvider)

Method Detail

onChartSizeChanged

public void onChartSizeChanged()

onChartDataChanged

public void onChartDataChanged()

Specified by:

onChartDataChanged in interface ChartRenderer

Overrides:

onChartDataChanged in class AbstractChartRenderer

onChartViewportChanged

public void onChartViewportChanged()

draw

public void draw(android.graphics.Canvas canvas)

Description copied from interface: ChartRenderer

Draw chart data.

drawUnclipped

public void drawUnclipped(android.graphics.Canvas canvas)

Description copied from interface: ChartRenderer

Draw chart data that should not be clipped to contentRect area.

checkTouch

public boolean checkTouch(float touchX,
                          float touchY)

Description copied from interface: ChartRenderer

Checks if given pixel coordinates corresponds to any chart value. If yes return true and set selectedValue, if not selectedValue should be *cleared* and method should return false.