CombinedChartRenderer.java
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package com.github.mikephil.charting.renderer;
import android.graphics.Canvas;
import com.github.mikephil.charting.animation.ChartAnimator;
import com.github.mikephil.charting.charts.Chart;
import com.github.mikephil.charting.charts.CombinedChart;
import com.github.mikephil.charting.charts.CombinedChart.DrawOrder;
import com.github.mikephil.charting.data.ChartData;
import com.github.mikephil.charting.data.CombinedData;
import com.github.mikephil.charting.highlight.Highlight;
import com.github.mikephil.charting.interfaces.dataprovider.BarLineScatterCandleBubbleDataProvider;
import com.github.mikephil.charting.utils.ViewPortHandler;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
/**
* Renderer class that is responsible for rendering multiple different data-types.
*/
public class CombinedChartRenderer extends DataRenderer {
/**
* all rederers for the different kinds of data this combined-renderer can draw
*/
protected List<DataRenderer> mRenderers = new ArrayList<DataRenderer>(5);
protected WeakReference<Chart> mChart;
public CombinedChartRenderer(CombinedChart chart, ChartAnimator animator, ViewPortHandler viewPortHandler) {
super(animator, viewPortHandler);
mChart = new WeakReference<Chart>(chart);
createRenderers();
}
/**
* Creates the renderers needed for this combined-renderer in the required order. Also takes the DrawOrder into
* consideration.
*/
public void createRenderers() {
mRenderers.clear();
CombinedChart chart = (CombinedChart)mChart.get();
if (chart == null)
return;
DrawOrder[] orders = chart.getDrawOrder();
for (DrawOrder order : orders) {
switch (order) {
case BAR:
if (chart.getBarData() != null)
mRenderers.add(new BarChartRenderer(chart, mAnimator, mViewPortHandler));
break;
case BUBBLE:
if (chart.getBubbleData() != null)
mRenderers.add(new BubbleChartRenderer(chart, mAnimator, mViewPortHandler));
break;
case LINE:
if (chart.getLineData() != null)
mRenderers.add(new LineChartRenderer(chart, mAnimator, mViewPortHandler));
break;
case CANDLE:
if (chart.getCandleData() != null)
mRenderers.add(new CandleStickChartRenderer(chart, mAnimator, mViewPortHandler));
break;
case SCATTER:
if (chart.getScatterData() != null)
mRenderers.add(new ScatterChartRenderer(chart, mAnimator, mViewPortHandler));
break;
}
}
}
@Override
public void initBuffers() {
for (DataRenderer renderer : mRenderers)
renderer.initBuffers();
}
@Override
public void drawData(Canvas c) {
for (DataRenderer renderer : mRenderers)
renderer.drawData(c);
}
@Override
public void drawValues(Canvas c) {
for (DataRenderer renderer : mRenderers)
renderer.drawValues(c);
}
@Override
public void drawExtras(Canvas c) {
for (DataRenderer renderer : mRenderers)
renderer.drawExtras(c);
}
protected List<Highlight> mHighlightBuffer = new ArrayList<Highlight>();
@Override
public void drawHighlighted(Canvas c, Highlight[] indices) {
Chart chart = mChart.get();
if (chart == null) return;
for (DataRenderer renderer : mRenderers) {
ChartData data = null;
if (renderer instanceof BarChartRenderer)
data = ((BarChartRenderer)renderer).mChart.getBarData();
else if (renderer instanceof LineChartRenderer)
data = ((LineChartRenderer)renderer).mChart.getLineData();
else if (renderer instanceof CandleStickChartRenderer)
data = ((CandleStickChartRenderer)renderer).mChart.getCandleData();
else if (renderer instanceof ScatterChartRenderer)
data = ((ScatterChartRenderer)renderer).mChart.getScatterData();
else if (renderer instanceof BubbleChartRenderer)
data = ((BubbleChartRenderer)renderer).mChart.getBubbleData();
int dataIndex = data == null ? -1
: ((CombinedData)chart.getData()).getAllData().indexOf(data);
mHighlightBuffer.clear();
for (Highlight h : indices) {
if (h.getDataIndex() == dataIndex || h.getDataIndex() == -1)
mHighlightBuffer.add(h);
}
renderer.drawHighlighted(c, mHighlightBuffer.toArray(new Highlight[mHighlightBuffer.size()]));
}
}
/**
* Returns the sub-renderer object at the specified index.
*
* @param index
* @return
*/
public DataRenderer getSubRenderer(int index) {
if (index >= mRenderers.size() || index < 0)
return null;
else
return mRenderers.get(index);
}
/**
* Returns all sub-renderers.
*
* @return
*/
public List<DataRenderer> getSubRenderers() {
return mRenderers;
}
public void setSubRenderers(List<DataRenderer> renderers) {
this.mRenderers = renderers;
}
}