SalesGrowthChart.java

/**
 * Copyright (C) 2009 - 2013 SC 4ViewSoft SRL
 *  
 * 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 org.achartengine.chartdemo.demo.chart;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

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

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;

/**
 * Sales growth demo chart.
 */
public class SalesGrowthChart extends AbstractDemoChart {
  /**
   * Returns the chart name.
   * 
   * @return the chart name
   */
  public String getName() {
    return "Sales growth";
  }

  /**
   * Returns the chart description.
   * 
   * @return the chart description
   */
  public String getDesc() {
    return "The sales growth across several years (time chart)";
  }

  /**
   * Executes the chart demo.
   * 
   * @param context the context
   * @return the built intent
   */
  public Intent execute(Context context) {
    String[] titles = new String[] { "Sales growth January 1995 to December 2000" };
    List<Date[]> dates = new ArrayList<Date[]>();
    List<double[]> values = new ArrayList<double[]>();
    Date[] dateValues = new Date[] { new Date(95, 0, 1), new Date(95, 3, 1), new Date(95, 6, 1),
        new Date(95, 9, 1), new Date(96, 0, 1), new Date(96, 3, 1), new Date(96, 6, 1),
        new Date(96, 9, 1), new Date(97, 0, 1), new Date(97, 3, 1), new Date(97, 6, 1),
        new Date(97, 9, 1), new Date(98, 0, 1), new Date(98, 3, 1), new Date(98, 6, 1),
        new Date(98, 9, 1), new Date(99, 0, 1), new Date(99, 3, 1), new Date(99, 6, 1),
        new Date(99, 9, 1), new Date(100, 0, 1), new Date(100, 3, 1), new Date(100, 6, 1),
        new Date(100, 9, 1), new Date(100, 11, 1) };
    dates.add(dateValues);

    values.add(new double[] { 4.9, 5.3, 3.2, 4.5, 6.5, 4.7, 5.8, 4.3, 4, 2.3, -0.5, -2.9, 3.2, 5.5,
        4.6, 9.4, 4.3, 1.2, 0, 0.4, 4.5, 3.4, 4.5, 4.3, 4 });
    int[] colors = new int[] { Color.BLUE };
    PointStyle[] styles = new PointStyle[] { PointStyle.POINT };
    XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles);
    setChartSettings(renderer, "Sales growth", "Date", "%", dateValues[0].getTime(),
        dateValues[dateValues.length - 1].getTime(), -4, 11, Color.GRAY, Color.LTGRAY);
    renderer.setYLabels(10);
    renderer.setXRoundedLabels(false);
    XYSeriesRenderer xyRenderer = (XYSeriesRenderer) renderer.getSeriesRendererAt(0);
    FillOutsideLine fill = new FillOutsideLine(FillOutsideLine.Type.BOUNDS_ABOVE);
    fill.setColor(Color.GREEN);
    xyRenderer.addFillOutsideLine(fill);
    fill = new FillOutsideLine(FillOutsideLine.Type.BOUNDS_BELOW);
    fill.setColor(Color.MAGENTA);
    xyRenderer.addFillOutsideLine(fill);
    fill = new FillOutsideLine(FillOutsideLine.Type.BOUNDS_ABOVE);
    fill.setColor(Color.argb(255, 0, 200, 100));
    fill.setFillRange(new int[] {10, 19});
    xyRenderer.addFillOutsideLine(fill);

    return ChartFactory.getTimeChartIntent(context, buildDateDataset(titles, dates, values),
        renderer, "MMM yyyy");
  }

}