Android Open Source - Swinedroid Alert Chart

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Back to project page Swinedroid.
License

The source code is released under:
GNU General Public License
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Java Source Code

package org.achartengine.chartlib;
//w w w .ja va  2s.  c  o  m
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;

import org.achartengine.ChartFactory;
import org.achartengine.chart.PointStyle;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;

import android.content.Context;
import android.graphics.Color;
import android.view.View;

public class AlertChart extends AbstractChart {
  private String mTitleString;
  private String mXAxisString;
  private int mHighPoint;
  private int mLowPoint;
  public LinkedList<AlertMoment> alertMoments;

  public class AlertMoment{
    public String mLabel;
    public int mHigh;
    public int mMedium;
    public int mLow;
  }
  
  public void addAlertMoment(){
    alertMoments.add(new AlertMoment());
  }
  
  public void setLastMomentHighAlert(int point){
    alertMoments.getLast().mHigh = point;
    if(point > mHighPoint)
      mHighPoint = point;
    if(point < mLowPoint)
      mLowPoint = point;
  }
  
  public void setLastMomentMediumAlert(int point){
    alertMoments.getLast().mMedium = point;
    if(point > mHighPoint)
      mHighPoint = point;
    if(point < mLowPoint)
      mLowPoint = point;
  }
  
  public void setLastMomentLowAlert(int point){
    alertMoments.getLast().mLow = point;
    if(point > mHighPoint)
      mHighPoint = point;
    if(point < mLowPoint)
      mLowPoint = point;
  }
  
  public void setLastMomentLabel(String label){
    alertMoments.getLast().mLabel = label;
  }
  
  public AlertChart(){
    alertMoments = new LinkedList<AlertMoment>();
  }
  
  public void setTitleString(String titleString){
    mTitleString = titleString;
  }
  
  public void setXAxisString(String xAxisString){
    mXAxisString = xAxisString;
  }
  
  /**
  * Executes the chart demo.
  * @param context the context
  * @return the built intent
  */
  public View execute(Context context) {
    String[] titles = new String[] { "High", "Medium", "Low"};
    List<double[]> x = new ArrayList<double[]>();
    for(int i = 0; i < titles.length; i++) {
      double[] xDoubles = new double[alertMoments.size()];
      for(int i2 = 0; i2 < alertMoments.size(); i2++){
        xDoubles[i2] = i2 + 1; 
      }
      x.add(xDoubles);
    }
    
    int[] colors = new int[] { Color.RED, Color.YELLOW, Color.GREEN};
    PointStyle[] styles = new PointStyle[] {PointStyle.CIRCLE, PointStyle.DIAMOND, PointStyle.TRIANGLE};
    XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles);
    
    List<double[]> values = new ArrayList<double[]>();
    double[] highValueDoubles = new double[alertMoments.size()];
    double[] mediumValueDoubles = new double[alertMoments.size()];
    double[] lowValueDoubles = new double[alertMoments.size()];
    ListIterator<AlertMoment> itr = alertMoments.listIterator();
    while(itr.hasNext()){
      int i = itr.nextIndex();
      AlertMoment thisAlertMoment = (AlertMoment) itr.next();
      highValueDoubles[i] = thisAlertMoment.mHigh;
      mediumValueDoubles[i] = thisAlertMoment.mMedium;
      lowValueDoubles[i] = thisAlertMoment.mLow;
      renderer.addTextLabel(i + 1, thisAlertMoment.mLabel);
    }
    values.add(highValueDoubles);
    values.add(mediumValueDoubles);
    values.add(lowValueDoubles);
    int length = renderer.getSeriesRendererCount();
    for (int i = 0; i < length; i++) {
      ((XYSeriesRenderer) renderer.getSeriesRendererAt(i)).setFillPoints(true);
    }
    setChartSettings(renderer, mTitleString, mXAxisString, "Alerts", 0.5, alertMoments.size() + 0.5, 0, mHighPoint + (mHighPoint * .1), Color.LTGRAY, Color.GRAY);
    renderer.setYLabels(8);
    View view = ChartFactory.getLineChartView(context, buildDataset(titles, x, values), renderer);

      return view;
  }

}
Java Source Code List
