Examples/DemoApp/src/com/androidplot/demos/BarPlotExampleActivity.java - platform/external/androidplot - Git at Google

 /*
  * Copyright 2012 AndroidPlot.com
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
  *    You may obtain a copy of the License at
  *
  *        http://www.apache.org/licenses/LICENSE-2.0
  *
  *    Unless required by applicable law or agreed to in writing, software
  *    distributed under the License is distributed on an "AS IS" BASIS,
  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *    See the License for the specific language governing permissions and
  *    limitations under the License.
  */

 package com.androidplot.demos;

 import java.text.DateFormatSymbols;
 import java.text.FieldPosition;
 import java.text.NumberFormat;
 import java.text.ParsePosition;
 import java.util.Arrays;
 import java.util.Iterator;

 import android.app.Activity;
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.PointF;
 import android.os.Bundle;
 import android.util.Pair;
 import android.view.MotionEvent;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemSelectedListener;
 import android.widget.ArrayAdapter;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.SeekBar;
 import android.widget.Spinner;

 import com.androidplot.LineRegion;
 import com.androidplot.ui.AnchorPosition;
 import com.androidplot.ui.SeriesRenderer;
 import com.androidplot.ui.SizeLayoutType;
 import com.androidplot.ui.SizeMetrics;
 import com.androidplot.ui.TextOrientationType;
 import com.androidplot.ui.widget.TextLabelWidget;
 import com.androidplot.util.PixelUtils;
 import com.androidplot.xy.*;
 import com.androidplot.ui.XLayoutStyle;
 import com.androidplot.ui.YLayoutStyle;

 /**
  * The simplest possible example of using AndroidPlot to plot some data.
  */
 public class BarPlotExampleActivity extends Activity
 {

     private static final String NO_SELECTION_TXT = "Touch bar to select.";
     private XYPlot plot;

     private CheckBox series1CheckBox;
     private CheckBox series2CheckBox;
     private Spinner spRenderStyle, spWidthStyle, spSeriesSize;
     private SeekBar sbFixedWidth, sbVariableWidth;

     private XYSeries series1;
     private XYSeries series2;
     private enum SeriesSize {
         TEN,
         TWENTY,
         SIXTY
     }

     // Create a couple arrays of y-values to plot:
     Number[] series1Numbers10 = {2, null, 5, 2, 7, 4, 3, 7, 4, 5};
     Number[] series2Numbers10 = {4, 6, 3, null, 2, 0, 7, 4, 5, 4};
     Number[] series1Numbers20 = {2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3};
     Number[] series2Numbers20 = {4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9};
     Number[] series1Numbers60 = {2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3, 2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3, 2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3};
     Number[] series2Numbers60 = {4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9, 4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9, 4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9};
     Number[] series1Numbers = series1Numbers10;
     Number[] series2Numbers = series2Numbers10;

     private MyBarFormatter formatter1 =
             new MyBarFormatter(Color.argb(200, 100, 150, 100), Color.LTGRAY);

     private MyBarFormatter formatter2 =
             new MyBarFormatter(Color.argb(200, 100, 100, 150), Color.LTGRAY);

     private MyBarFormatter selectionFormatter =
             new MyBarFormatter(Color.YELLOW, Color.WHITE);

     private TextLabelWidget selectionWidget;

     private Pair<Integer, XYSeries> selection;

     @Override
     public void onCreate(Bundle savedInstanceState)
     {

         super.onCreate(savedInstanceState);
         setContentView(R.layout.bar_plot_example);

         // initialize our XYPlot reference:
         plot = (XYPlot) findViewById(R.id.mySimpleXYPlot);

         selectionWidget = new TextLabelWidget(plot.getLayoutManager(), NO_SELECTION_TXT,
                 new SizeMetrics(
                         PixelUtils.dpToPix(100), SizeLayoutType.ABSOLUTE,
                         PixelUtils.dpToPix(100), SizeLayoutType.ABSOLUTE),
                 TextOrientationType.HORIZONTAL);

         selectionWidget.getLabelPaint().setTextSize(PixelUtils.dpToPix(16));

         // add a dark, semi-transparent background to the selection label widget:
         Paint p = new Paint();
         p.setARGB(100, 0, 0, 0);
         selectionWidget.setBackgroundPaint(p);

         selectionWidget.position(
                 0, XLayoutStyle.RELATIVE_TO_CENTER,
                 PixelUtils.dpToPix(45), YLayoutStyle.ABSOLUTE_FROM_TOP,
                 AnchorPosition.TOP_MIDDLE);
         selectionWidget.pack();


         // reduce the number of range labels
         plot.setTicksPerRangeLabel(3);
         plot.setRangeLowerBoundary(0, BoundaryMode.FIXED);
         plot.getGraphWidget().setGridPadding(30, 10, 30, 0);

         plot.setTicksPerDomainLabel(2);


         // setup checkbox listers:
         series1CheckBox = (CheckBox) findViewById(R.id.s1CheckBox);
         series1CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                 onS1CheckBoxClicked(b);
             }
         });

         series2CheckBox = (CheckBox) findViewById(R.id.s2CheckBox);
         series2CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean b) {onS2CheckBoxClicked(b);
             }
         });

         plot.setOnTouchListener(new View.OnTouchListener() {
             @Override
             public boolean onTouch(View view, MotionEvent motionEvent) {
                 if(motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
                     onPlotClicked(new PointF(motionEvent.getX(), motionEvent.getY()));
                 }
                 return true;
             }
         });

         spRenderStyle = (Spinner) findViewById(R.id.spRenderStyle);
         ArrayAdapter <BarRenderer.BarRenderStyle> adapter = new ArrayAdapter <BarRenderer.BarRenderStyle> (this, android.R.layout.simple_spinner_item, BarRenderer.BarRenderStyle.values() );
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         spRenderStyle.setAdapter(adapter);
         spRenderStyle.setSelection(BarRenderer.BarRenderStyle.OVERLAID.ordinal());
         spRenderStyle.setOnItemSelectedListener(new OnItemSelectedListener() {
             public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
                 updatePlot();
             }
 			@Override
 			public void onNothingSelected(AdapterView<?> arg0) {
 			}
         });

         spWidthStyle = (Spinner) findViewById(R.id.spWidthStyle);
         ArrayAdapter <BarRenderer.BarWidthStyle> adapter1 = new ArrayAdapter <BarRenderer.BarWidthStyle> (this, android.R.layout.simple_spinner_item, BarRenderer.BarWidthStyle.values() );
         adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         spWidthStyle.setAdapter(adapter1);
         spWidthStyle.setSelection(BarRenderer.BarWidthStyle.FIXED_WIDTH.ordinal());
         spWidthStyle.setOnItemSelectedListener(new OnItemSelectedListener() {
             public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
             	if (BarRenderer.BarWidthStyle.FIXED_WIDTH.equals(spWidthStyle.getSelectedItem())) {
             		sbFixedWidth.setVisibility(View.VISIBLE);
             		sbVariableWidth.setVisibility(View.INVISIBLE);
             	} else {
             		sbFixedWidth.setVisibility(View.INVISIBLE);
             		sbVariableWidth.setVisibility(View.VISIBLE);
             	}
                 updatePlot();
             }
 			@Override
 			public void onNothingSelected(AdapterView<?> arg0) {
 			}
         });

         spSeriesSize = (Spinner) findViewById(R.id.spSeriesSize);
         ArrayAdapter <SeriesSize> adapter11 = new ArrayAdapter <SeriesSize> (this, android.R.layout.simple_spinner_item, SeriesSize.values() );
         adapter11.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         spSeriesSize.setAdapter(adapter11);
         spSeriesSize.setSelection(SeriesSize.TEN.ordinal());
         spSeriesSize.setOnItemSelectedListener(new OnItemSelectedListener() {
             public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
                 switch ((SeriesSize)arg0.getSelectedItem()) {
 				case TEN:
 					series1Numbers = series1Numbers10;
 					series2Numbers = series2Numbers10;
 					break;
 				case TWENTY:
 					series1Numbers = series1Numbers20;
 					series2Numbers = series2Numbers20;
 					break;
 				case SIXTY:
 					series1Numbers = series1Numbers60;
 					series2Numbers = series2Numbers60;
 					break;
 				default:
 					break;
                 }
                 updatePlot();
             }
 			@Override
 			public void onNothingSelected(AdapterView<?> arg0) {
 			}
         });


         sbFixedWidth = (SeekBar) findViewById(R.id.sbFixed);
         sbFixedWidth.setProgress(50);
         sbFixedWidth.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
             @Override
             public void onProgressChanged(SeekBar seekBar, int i, boolean b) {updatePlot();}
             @Override
             public void onStartTrackingTouch(SeekBar seekBar) {}

             @Override
             public void onStopTrackingTouch(SeekBar seekBar) {}
         });


         sbVariableWidth = (SeekBar) findViewById(R.id.sbVariable);
         sbVariableWidth.setProgress(1);
         sbVariableWidth.setVisibility(View.INVISIBLE);
         sbVariableWidth.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
             @Override
             public void onProgressChanged(SeekBar seekBar, int i, boolean b) {updatePlot();}
             @Override
             public void onStartTrackingTouch(SeekBar seekBar) {}
             @Override
             public void onStopTrackingTouch(SeekBar seekBar) {}
         });

         plot.setDomainValueFormat(new NumberFormat() {
             @Override
             public StringBuffer format(double value, StringBuffer buffer, FieldPosition field) {
                 int year = (int) (value + 0.5d) / 12;
                 int month = (int) ((value + 0.5d) % 12);
                 return new StringBuffer(DateFormatSymbols.getInstance().getShortMonths()[month] + " '0" + year);
             }

             @Override
             public StringBuffer format(long value, StringBuffer buffer, FieldPosition field) {
                 throw new UnsupportedOperationException("Not yet implemented.");
             }

             @Override
             public Number parse(String string, ParsePosition position) {
                 throw new UnsupportedOperationException("Not yet implemented.");
             }
         });
         updatePlot();

     }

     private void updatePlot() {

     	// Remove all current series from each plot
         Iterator<XYSeries> iterator1 = plot.getSeriesSet().iterator();
         while(iterator1.hasNext()) {
         	XYSeries setElement = iterator1.next();
         	plot.removeSeries(setElement);
         }

         // Setup our Series with the selected number of elements
         series1 = new SimpleXYSeries(Arrays.asList(series1Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Us");
         series2 = new SimpleXYSeries(Arrays.asList(series2Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Them");

         // add a new series' to the xyplot:
         if (series1CheckBox.isChecked()) plot.addSeries(series1, formatter1);
         if (series2CheckBox.isChecked()) plot.addSeries(series2, formatter2);

         // Setup the BarRenderer with our selected options
         MyBarRenderer renderer = ((MyBarRenderer)plot.getRenderer(MyBarRenderer.class));
         renderer.setBarRenderStyle((BarRenderer.BarRenderStyle)spRenderStyle.getSelectedItem());
         renderer.setBarWidthStyle((BarRenderer.BarWidthStyle)spWidthStyle.getSelectedItem());
         renderer.setBarWidth(sbFixedWidth.getProgress());
         renderer.setBarGap(sbVariableWidth.getProgress());

         if (BarRenderer.BarRenderStyle.STACKED.equals(spRenderStyle.getSelectedItem())) {
         	plot.setRangeTopMin(15);
         } else {
         	plot.setRangeTopMin(0);
         }

         plot.redraw();

     }

     private void onPlotClicked(PointF point) {

         // make sure the point lies within the graph area.  we use gridrect
         // because it accounts for margins and padding as well.
         if (plot.getGraphWidget().getGridRect().contains(point.x, point.y)) {
             Number x = plot.getXVal(point);
             Number y = plot.getYVal(point);


             selection = null;
             double xDistance = 0;
             double yDistance = 0;

             // find the closest value to the selection:
             for (XYSeries series : plot.getSeriesSet()) {
                 for (int i = 0; i < series.size(); i++) {
                     Number thisX = series.getX(i);
                     Number thisY = series.getY(i);
                     if (thisX != null && thisY != null) {
                         double thisXDistance =
                                 LineRegion.measure(x, thisX).doubleValue();
                         double thisYDistance =
                                 LineRegion.measure(y, thisY).doubleValue();
                         if (selection == null) {
                             selection = new Pair<Integer, XYSeries>(i, series);
                             xDistance = thisXDistance;
                             yDistance = thisYDistance;
                         } else if (thisXDistance < xDistance) {
                             selection = new Pair<Integer, XYSeries>(i, series);
                             xDistance = thisXDistance;
                             yDistance = thisYDistance;
                         } else if (thisXDistance == xDistance &&
                                 thisYDistance < yDistance &&
                                 thisY.doubleValue() >= y.doubleValue()) {
                             selection = new Pair<Integer, XYSeries>(i, series);
                             xDistance = thisXDistance;
                             yDistance = thisYDistance;
                         }
                     }
                 }
             }

         } else {
             // if the press was outside the graph area, deselect:
             selection = null;
         }

         if(selection == null) {
             selectionWidget.setText(NO_SELECTION_TXT);
         } else {
             selectionWidget.setText("Selected: " + selection.second.getTitle() +
                     " Value: " + selection.second.getY(selection.first));
         }
         plot.redraw();
     }

     private void onS1CheckBoxClicked(boolean checked) {
         if (checked) {
             plot.addSeries(series1, formatter1);
         } else {
             plot.removeSeries(series1);
         }
         plot.redraw();
     }

     private void onS2CheckBoxClicked(boolean checked) {
         if (checked) {
             plot.addSeries(series2, formatter2);
         } else {
             plot.removeSeries(series2);
         }
         plot.redraw();
     }

     class MyBarFormatter extends BarFormatter {
         public MyBarFormatter(int fillColor, int borderColor) {
             super(fillColor, borderColor);
         }

         @Override
         public Class<? extends SeriesRenderer> getRendererClass() {
             return MyBarRenderer.class;
         }

         @Override
         public SeriesRenderer getRendererInstance(XYPlot plot) {
             return new MyBarRenderer(plot);
         }
     }

     class MyBarRenderer extends BarRenderer<MyBarFormatter> {

         public MyBarRenderer(XYPlot plot) {
             super(plot);
         }

         /**
          * Implementing this method to allow us to inject our
          * special selection formatter.
          * @param index index of the point being rendered.
          * @param series XYSeries to which the point being rendered belongs.
          * @return
          */
         //@Override
         // TODO: figure out why using @Override screws up the Maven builds
         protected MyBarFormatter getFormatter(int index, XYSeries series) {
             if(selection != null &&
                     selection.second == series &&
                     selection.first == index) {
                 return selectionFormatter;
             } else {
                 return getFormatter(series);
             }
         }
     }
 }
	/*
	* Copyright 2012 AndroidPlot.com
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.androidplot.demos;

	import java.text.DateFormatSymbols;
	import java.text.FieldPosition;
	import java.text.NumberFormat;
	import java.text.ParsePosition;
	import java.util.Arrays;
	import java.util.Iterator;

	import android.app.Activity;
	import android.graphics.Color;
	import android.graphics.Paint;
	import android.graphics.PointF;
	import android.os.Bundle;
	import android.util.Pair;
	import android.view.MotionEvent;
	import android.view.View;
	import android.widget.AdapterView;
	import android.widget.AdapterView.OnItemSelectedListener;
	import android.widget.ArrayAdapter;
	import android.widget.CheckBox;
	import android.widget.CompoundButton;
	import android.widget.SeekBar;
	import android.widget.Spinner;

	import com.androidplot.LineRegion;
	import com.androidplot.ui.AnchorPosition;
	import com.androidplot.ui.SeriesRenderer;
	import com.androidplot.ui.SizeLayoutType;
	import com.androidplot.ui.SizeMetrics;
	import com.androidplot.ui.TextOrientationType;
	import com.androidplot.ui.widget.TextLabelWidget;
	import com.androidplot.util.PixelUtils;
	import com.androidplot.xy.*;
	import com.androidplot.ui.XLayoutStyle;
	import com.androidplot.ui.YLayoutStyle;

	/**
	* The simplest possible example of using AndroidPlot to plot some data.
	*/
	public class BarPlotExampleActivity extends Activity
	{

	private static final String NO_SELECTION_TXT = "Touch bar to select.";
	private XYPlot plot;

	private CheckBox series1CheckBox;
	private CheckBox series2CheckBox;
	private Spinner spRenderStyle, spWidthStyle, spSeriesSize;
	private SeekBar sbFixedWidth, sbVariableWidth;

	private XYSeries series1;
	private XYSeries series2;
	private enum SeriesSize {
	TEN,
	TWENTY,
	SIXTY
	}

	// Create a couple arrays of y-values to plot:
	Number[] series1Numbers10 = {2, null, 5, 2, 7, 4, 3, 7, 4, 5};
	Number[] series2Numbers10 = {4, 6, 3, null, 2, 0, 7, 4, 5, 4};
	Number[] series1Numbers20 = {2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3};
	Number[] series2Numbers20 = {4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9};
	Number[] series1Numbers60 = {2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3, 2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3, 2, null, 5, 2, 7, 4, 3, 7, 4, 5, 7, 4, 5, 8, 5, 3, 6, 3, 9, 3};
	Number[] series2Numbers60 = {4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9, 4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9, 4, 6, 3, null, 2, 0, 7, 4, 5, 4, 9, 6, 2, 8, 4, 0, 7, 4, 7, 9};
	Number[] series1Numbers = series1Numbers10;
	Number[] series2Numbers = series2Numbers10;

	private MyBarFormatter formatter1 =
	new MyBarFormatter(Color.argb(200, 100, 150, 100), Color.LTGRAY);

	private MyBarFormatter formatter2 =
	new MyBarFormatter(Color.argb(200, 100, 100, 150), Color.LTGRAY);

	private MyBarFormatter selectionFormatter =
	new MyBarFormatter(Color.YELLOW, Color.WHITE);

	private TextLabelWidget selectionWidget;

	private Pair<Integer, XYSeries> selection;

	@Override
	public void onCreate(Bundle savedInstanceState)
	{

	super.onCreate(savedInstanceState);
	setContentView(R.layout.bar_plot_example);

	// initialize our XYPlot reference:
	plot = (XYPlot) findViewById(R.id.mySimpleXYPlot);

	selectionWidget = new TextLabelWidget(plot.getLayoutManager(), NO_SELECTION_TXT,
	new SizeMetrics(
	PixelUtils.dpToPix(100), SizeLayoutType.ABSOLUTE,
	PixelUtils.dpToPix(100), SizeLayoutType.ABSOLUTE),
	TextOrientationType.HORIZONTAL);

	selectionWidget.getLabelPaint().setTextSize(PixelUtils.dpToPix(16));

	// add a dark, semi-transparent background to the selection label widget:
	Paint p = new Paint();
	p.setARGB(100, 0, 0, 0);
	selectionWidget.setBackgroundPaint(p);

	selectionWidget.position(
	0, XLayoutStyle.RELATIVE_TO_CENTER,
	PixelUtils.dpToPix(45), YLayoutStyle.ABSOLUTE_FROM_TOP,
	AnchorPosition.TOP_MIDDLE);
	selectionWidget.pack();


	// reduce the number of range labels
	plot.setTicksPerRangeLabel(3);
	plot.setRangeLowerBoundary(0, BoundaryMode.FIXED);
	plot.getGraphWidget().setGridPadding(30, 10, 30, 0);

	plot.setTicksPerDomainLabel(2);


	// setup checkbox listers:
	series1CheckBox = (CheckBox) findViewById(R.id.s1CheckBox);
	series1CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
	onS1CheckBoxClicked(b);
	}
	});

	series2CheckBox = (CheckBox) findViewById(R.id.s2CheckBox);
	series2CheckBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton compoundButton, boolean b) {onS2CheckBoxClicked(b);
	}
	});

	plot.setOnTouchListener(new View.OnTouchListener() {
	@Override
	public boolean onTouch(View view, MotionEvent motionEvent) {
	if(motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
	onPlotClicked(new PointF(motionEvent.getX(), motionEvent.getY()));
	}
	return true;
	}
	});

	spRenderStyle = (Spinner) findViewById(R.id.spRenderStyle);
	ArrayAdapter <BarRenderer.BarRenderStyle> adapter = new ArrayAdapter <BarRenderer.BarRenderStyle> (this, android.R.layout.simple_spinner_item, BarRenderer.BarRenderStyle.values() );
	adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
	spRenderStyle.setAdapter(adapter);
	spRenderStyle.setSelection(BarRenderer.BarRenderStyle.OVERLAID.ordinal());
	spRenderStyle.setOnItemSelectedListener(new OnItemSelectedListener() {
	public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
	updatePlot();
	}
	@Override
	public void onNothingSelected(AdapterView<?> arg0) {
	}
	});

	spWidthStyle = (Spinner) findViewById(R.id.spWidthStyle);
	ArrayAdapter <BarRenderer.BarWidthStyle> adapter1 = new ArrayAdapter <BarRenderer.BarWidthStyle> (this, android.R.layout.simple_spinner_item, BarRenderer.BarWidthStyle.values() );
	adapter1.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
	spWidthStyle.setAdapter(adapter1);
	spWidthStyle.setSelection(BarRenderer.BarWidthStyle.FIXED_WIDTH.ordinal());
	spWidthStyle.setOnItemSelectedListener(new OnItemSelectedListener() {
	public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
	if (BarRenderer.BarWidthStyle.FIXED_WIDTH.equals(spWidthStyle.getSelectedItem())) {
	sbFixedWidth.setVisibility(View.VISIBLE);
	sbVariableWidth.setVisibility(View.INVISIBLE);
	} else {
	sbFixedWidth.setVisibility(View.INVISIBLE);
	sbVariableWidth.setVisibility(View.VISIBLE);
	}
	updatePlot();
	}
	@Override
	public void onNothingSelected(AdapterView<?> arg0) {
	}
	});

	spSeriesSize = (Spinner) findViewById(R.id.spSeriesSize);
	ArrayAdapter <SeriesSize> adapter11 = new ArrayAdapter <SeriesSize> (this, android.R.layout.simple_spinner_item, SeriesSize.values() );
	adapter11.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
	spSeriesSize.setAdapter(adapter11);
	spSeriesSize.setSelection(SeriesSize.TEN.ordinal());
	spSeriesSize.setOnItemSelectedListener(new OnItemSelectedListener() {
	public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {
	switch ((SeriesSize)arg0.getSelectedItem()) {
	case TEN:
	series1Numbers = series1Numbers10;
	series2Numbers = series2Numbers10;
	break;
	case TWENTY:
	series1Numbers = series1Numbers20;
	series2Numbers = series2Numbers20;
	break;
	case SIXTY:
	series1Numbers = series1Numbers60;
	series2Numbers = series2Numbers60;
	break;
	default:
	break;
	}
	updatePlot();
	}
	@Override
	public void onNothingSelected(AdapterView<?> arg0) {
	}
	});


	sbFixedWidth = (SeekBar) findViewById(R.id.sbFixed);
	sbFixedWidth.setProgress(50);
	sbFixedWidth.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
	@Override
	public void onProgressChanged(SeekBar seekBar, int i, boolean b) {updatePlot();}
	@Override
	public void onStartTrackingTouch(SeekBar seekBar) {}

	@Override
	public void onStopTrackingTouch(SeekBar seekBar) {}
	});


	sbVariableWidth = (SeekBar) findViewById(R.id.sbVariable);
	sbVariableWidth.setProgress(1);
	sbVariableWidth.setVisibility(View.INVISIBLE);
	sbVariableWidth.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
	@Override
	public void onProgressChanged(SeekBar seekBar, int i, boolean b) {updatePlot();}
	@Override
	public void onStartTrackingTouch(SeekBar seekBar) {}
	@Override
	public void onStopTrackingTouch(SeekBar seekBar) {}
	});

	plot.setDomainValueFormat(new NumberFormat() {
	@Override
	public StringBuffer format(double value, StringBuffer buffer, FieldPosition field) {
	int year = (int) (value + 0.5d) / 12;
	int month = (int) ((value + 0.5d) % 12);
	return new StringBuffer(DateFormatSymbols.getInstance().getShortMonths()[month] + " '0" + year);
	}

	@Override
	public StringBuffer format(long value, StringBuffer buffer, FieldPosition field) {
	throw new UnsupportedOperationException("Not yet implemented.");
	}

	@Override
	public Number parse(String string, ParsePosition position) {
	throw new UnsupportedOperationException("Not yet implemented.");
	}
	});
	updatePlot();

	}

	private void updatePlot() {

	// Remove all current series from each plot
	Iterator<XYSeries> iterator1 = plot.getSeriesSet().iterator();
	while(iterator1.hasNext()) {
	XYSeries setElement = iterator1.next();
	plot.removeSeries(setElement);
	}

	// Setup our Series with the selected number of elements
	series1 = new SimpleXYSeries(Arrays.asList(series1Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Us");
	series2 = new SimpleXYSeries(Arrays.asList(series2Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Them");

	// add a new series' to the xyplot:
	if (series1CheckBox.isChecked()) plot.addSeries(series1, formatter1);
	if (series2CheckBox.isChecked()) plot.addSeries(series2, formatter2);

	// Setup the BarRenderer with our selected options
	MyBarRenderer renderer = ((MyBarRenderer)plot.getRenderer(MyBarRenderer.class));
	renderer.setBarRenderStyle((BarRenderer.BarRenderStyle)spRenderStyle.getSelectedItem());
	renderer.setBarWidthStyle((BarRenderer.BarWidthStyle)spWidthStyle.getSelectedItem());
	renderer.setBarWidth(sbFixedWidth.getProgress());
	renderer.setBarGap(sbVariableWidth.getProgress());

	if (BarRenderer.BarRenderStyle.STACKED.equals(spRenderStyle.getSelectedItem())) {
	plot.setRangeTopMin(15);
	} else {
	plot.setRangeTopMin(0);
	}

	plot.redraw();

	}

	private void onPlotClicked(PointF point) {

	// make sure the point lies within the graph area. we use gridrect
	// because it accounts for margins and padding as well.
	if (plot.getGraphWidget().getGridRect().contains(point.x, point.y)) {
	Number x = plot.getXVal(point);
	Number y = plot.getYVal(point);


	selection = null;
	double xDistance = 0;
	double yDistance = 0;

	// find the closest value to the selection:
	for (XYSeries series : plot.getSeriesSet()) {
	for (int i = 0; i < series.size(); i++) {
	Number thisX = series.getX(i);
	Number thisY = series.getY(i);
	if (thisX != null && thisY != null) {
	double thisXDistance =
	LineRegion.measure(x, thisX).doubleValue();
	double thisYDistance =
	LineRegion.measure(y, thisY).doubleValue();
	if (selection == null) {
	selection = new Pair<Integer, XYSeries>(i, series);
	xDistance = thisXDistance;
	yDistance = thisYDistance;
	} else if (thisXDistance < xDistance) {
	selection = new Pair<Integer, XYSeries>(i, series);
	xDistance = thisXDistance;
	yDistance = thisYDistance;
	} else if (thisXDistance == xDistance &&
	thisYDistance < yDistance &&
	thisY.doubleValue() >= y.doubleValue()) {
	selection = new Pair<Integer, XYSeries>(i, series);
	xDistance = thisXDistance;
	yDistance = thisYDistance;
	}
	}
	}
	}

	} else {
	// if the press was outside the graph area, deselect:
	selection = null;
	}

	if(selection == null) {
	selectionWidget.setText(NO_SELECTION_TXT);
	} else {
	selectionWidget.setText("Selected: " + selection.second.getTitle() +
	" Value: " + selection.second.getY(selection.first));
	}
	plot.redraw();
	}

	private void onS1CheckBoxClicked(boolean checked) {
	if (checked) {
	plot.addSeries(series1, formatter1);
	} else {
	plot.removeSeries(series1);
	}
	plot.redraw();
	}

	private void onS2CheckBoxClicked(boolean checked) {
	if (checked) {
	plot.addSeries(series2, formatter2);
	} else {
	plot.removeSeries(series2);
	}
	plot.redraw();
	}

	class MyBarFormatter extends BarFormatter {
	public MyBarFormatter(int fillColor, int borderColor) {
	super(fillColor, borderColor);
	}

	@Override
	public Class<? extends SeriesRenderer> getRendererClass() {
	return MyBarRenderer.class;
	}

	@Override
	public SeriesRenderer getRendererInstance(XYPlot plot) {
	return new MyBarRenderer(plot);
	}
	}

	class MyBarRenderer extends BarRenderer<MyBarFormatter> {

	public MyBarRenderer(XYPlot plot) {
	super(plot);
	}

	/**
	* Implementing this method to allow us to inject our
	* special selection formatter.
	* @param index index of the point being rendered.
	* @param series XYSeries to which the point being rendered belongs.
	* @return
	*/
	//@Override
	// TODO: figure out why using @Override screws up the Maven builds
	protected MyBarFormatter getFormatter(int index, XYSeries series) {
	if(selection != null &&
	selection.second == series &&
	selection.first == index) {
	return selectionFormatter;
	} else {
	return getFormatter(series);
	}
	}
	}
	}