Android Open Source - customhellochartdemo Bubble Chart Data

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License

The source code is released under:

Apache License

Java Source Code

package lecho.lib.hellocharts.model;
//from w ww  .jav  a2  s  .c om
import java.util.ArrayList;
import java.util.List;

import lecho.lib.hellocharts.view.Chart;

/**
 * Data for BubbleChart.
 * 
 */
public class BubbleChartData extends AbstractChartData {
  public static final int DEFAULT_MIN_BUBBLE_RADIUS_DP = 6;
  public static final float DEFAULT_BUBBLE_SCALE = 1f;
  private ValueFormatter formatter = new SimpleValueFormatter();
  private boolean hasLabels = false;
  private boolean hasLabelsOnlyForSelected = false;
  private int minBubbleRadius = DEFAULT_MIN_BUBBLE_RADIUS_DP;
  private float bubbleScale = DEFAULT_BUBBLE_SCALE;
  // TODO: consider Collections.emptyList()
  private List<BubbleValue> values = new ArrayList<BubbleValue>();

  public BubbleChartData() {
  };

  public BubbleChartData(List<BubbleValue> values) {
    setValues(values);
  }

  /**
   * Copy constructor for deep copy.
   */
  public BubbleChartData(BubbleChartData data) {
    super(data);
    this.formatter = data.formatter;
    this.hasLabels = data.hasLabels;
    this.hasLabelsOnlyForSelected = data.hasLabelsOnlyForSelected;
    this.minBubbleRadius = data.minBubbleRadius;
    this.bubbleScale = data.bubbleScale;

    for (BubbleValue bubbleValue : data.getValues()) {
      this.values.add(new BubbleValue(bubbleValue));
    }
  }

  @Override
  public void update(float scale) {
    for (BubbleValue value : values) {
      value.update(scale);
    }
  }

  @Override
  public void finish() {
    for (BubbleValue value : values) {
      value.finish();
    }
  }

  public List<BubbleValue> getValues() {
    return values;
  }

  public BubbleChartData setValues(List<BubbleValue> values) {
    if (null == values) {
      this.values = new ArrayList<BubbleValue>();
    } else {
      this.values = values;
    }
    return this;
  }

  public boolean hasLabels() {
    return hasLabels;
  }

  public BubbleChartData setHasLabels(boolean hasLabels) {
    this.hasLabels = hasLabels;
    if (hasLabels) {
      hasLabelsOnlyForSelected = false;
    }
    return this;
  }

  /**
   * @see #setHasLabelsOnlyForSelected(boolean)
   */
  public boolean hasLabelsOnlyForSelected() {
    return hasLabelsOnlyForSelected;
  }

  /**
   * Set true if you want to show value labels only for selected value, works best when chart has
   * isValueSelectionEnabled set to true {@link Chart#setValueSelectionEnabled(boolean)}.
   */
  public BubbleChartData setHasLabelsOnlyForSelected(boolean hasLabelsOnlyForSelected) {
    this.hasLabelsOnlyForSelected = hasLabelsOnlyForSelected;
    if (hasLabelsOnlyForSelected) {
      this.hasLabels = false;
    }
    return this;
  }

  /**
   * Returns minimal bubble radius in dp.
   * 
   * @see #setMinBubbleRadius(int)
   */
  public int getMinBubbleRadius() {
    return minBubbleRadius;
  }

  /**
   * Set minimal bubble radius in dp, helpful when you want small bubbles(bubbles with very small z values compared to
   * other bubbles) to be visible on chart, default 6dp
   */
  public void setMinBubbleRadius(int minBubbleRadius) {
    this.minBubbleRadius = minBubbleRadius;
  }

  /**
   * Returns bubble scale which is used to adjust bubble size.
   * 
   * @see #setBubbleScale(float)
   */
  public float getBubbleScale() {
    return bubbleScale;
  }

  /**
   * Set bubble scale which is used to adjust bubble size. If you want smaller bubbles set scale <0, 1>, if you want
   * bigger bubbles set scale >1, default 1.0f.
   */
  public void setBubbleScale(float bubbleScale) {
    this.bubbleScale = bubbleScale;
  }

  public ValueFormatter getFormatter() {
    return formatter;
  }

  public BubbleChartData setFormatter(ValueFormatter formatter) {
    if (null == formatter) {
      this.formatter = new SimpleValueFormatter();
    } else {
      this.formatter = formatter;
    }
    return this;
  }

  public static BubbleChartData generateDummyData() {
    final int numValues = 4;
    BubbleChartData data = new BubbleChartData();
    List<BubbleValue> values = new ArrayList<BubbleValue>(numValues);
    values.add(new BubbleValue(0, 20, 15000));
    values.add(new BubbleValue(3, 22, 20000));
    values.add(new BubbleValue(5, 25, 5000));
    values.add(new BubbleValue(7, 30, 30000));
    values.add(new BubbleValue(11, 22, 10));
    data.setValues(values);
    return data;
  }
}

Java Source Code List

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