Android Open Source - customhellochartdemo Arc Value

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Back to project page customhellochartdemo.

License

The source code is released under:

Apache License

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Java Source Code

package lecho.lib.hellocharts.model;
//from ww  w .j  av  a2  s.c  o  m
import lecho.lib.hellocharts.util.Utils;
import lecho.lib.hellocharts.view.Chart;

/**
 * Model representing single slice/arc on PieChart.
 * 
 */
public class ArcValue {
  private static final int DEFAULT_ARC_SPACING_DP = 2;

  /** Current value of this arc. */
  private float value;

  /** Origin value of this arc, used during value animation. */
  private float orginValue;

  /** Difference between originValue and targetValue. */
  private float diff;

  /** Color of this arc. */
  private int color = Utils.DEFAULT_COLOR;

  /** Darken color used to draw label background and give touch feedback. */
  private int darkenColor = Utils.DEFAULT_DARKEN_COLOR;

  /** Spacing between this arc and its neighbors. */
  private int arcSpacing = DEFAULT_ARC_SPACING_DP;

  /** Custom label for this arc, if not set number formatting will be used. */
  private char[] label;

  public ArcValue() {
    setValue(0);
  }

  public ArcValue(float value) {
    setValue(value);
  }

  public ArcValue(float value, int color) {
    setValue(value);
    setColor(color);
  }

  public ArcValue(float value, int color, int arcSpacing) {
    setValue(value);
    setColor(color);
    this.arcSpacing = arcSpacing;
  }

  public ArcValue(ArcValue arcValue) {
    setValue(arcValue.value);
    setColor(arcValue.color);
    this.arcSpacing = arcValue.arcSpacing;
    this.label = arcValue.label;
  }

  public void update(float scale) {
    value = orginValue + diff * scale;
  }

  public void finish() {
    setValue(orginValue + diff);
  }

  public float getValue() {
    return value;
  }

  public ArcValue setValue(float value) {
    this.value = value;
    this.orginValue = value;
    this.diff = 0;
    return this;
  }

  /**
   * Set target value that should be reached when data animation finish then call {@link Chart#startDataAnimation()}
   * 
   * @param target
   * @return
   */
  public ArcValue setTarget(float target) {
    setValue(value);
    this.diff = target - orginValue;
    return this;
  }

  public int getColor() {
    return color;
  }

  public ArcValue setColor(int color) {
    this.color = color;
    this.darkenColor = Utils.darkenColor(color);
    return this;
  }

  public int getDarkenColor() {
    return darkenColor;
  }

  public int getArcSpacing() {
    return arcSpacing;
  }

  public ArcValue setArcSpacing(int arcSpacing) {
    this.arcSpacing = arcSpacing;
    return this;
  }

  public char[] getLabel() {
    return label;
  }

  public ArcValue setLabel(char[] label) {
    this.label = label;
    return this;
  }

  @Override
  public String toString() {
    return "ArcValue [value=" + value + "]";
  }

}

Java Source Code List