Android Open Source - customhellochartdemo Pie Chart Data

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License

The source code is released under:
Apache License
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Java Source Code

package lecho.lib.hellocharts.model;
//  w  w w  .  j a  v a 2 s  . co m
import java.util.ArrayList;
import java.util.List;

import lecho.lib.hellocharts.view.Chart;
import lecho.lib.hellocharts.view.PieChartView;
import android.graphics.Color;
import android.graphics.Typeface;

/**
 * Data for PieChart, by default it doesn't have axes.
 * 
 */
public class PieChartData extends AbstractChartData {
  public static final int DEFAULT_CENTER_TEXT1_SIZE_SP = 42;
  public static final int DEFAULT_CENTER_TEXT2_SIZE_SP = 16;
  public static final float DEFAULT_CENTER_CIRCLE_SCALE = 0.6f;

  private ValueFormatter formatter = new SimpleValueFormatter();
  private boolean hasLabels = false;
  private boolean hasLabelsOnlyForSelected = false;
  private boolean hasLabelsOutside = false;

  private boolean hasCenterCircle = false;
  private int centerCircleColor = Color.WHITE;
  private float centerCircleScale = 0.6f;

  private int centerText1Color = Color.BLACK;
  private int centerText1FontSize = DEFAULT_CENTER_TEXT1_SIZE_SP;
  private Typeface centerText1Typeface;
  private String centerText1;

  private int centerText2Color = Color.BLACK;
  private int centerText2FontSize = DEFAULT_CENTER_TEXT2_SIZE_SP;
  private Typeface centerText2Typeface;
  private String centerText2;

  private List<ArcValue> values = new ArrayList<ArcValue>();

  public PieChartData() {
    setAxisXBottom(null);
    setAxisYLeft(null);
  };

  public PieChartData(List<ArcValue> values) {
    setValues(values);
    // Empty axes. Pie chart don't need axes.
    setAxisXBottom(null);
    setAxisYLeft(null);
  }

  public PieChartData(PieChartData data) {
    super(data);
    this.formatter = data.formatter;
    this.hasLabels = data.hasLabels;
    this.hasLabelsOnlyForSelected = data.hasLabelsOnlyForSelected;
    this.hasLabelsOutside = data.hasLabelsOutside;

    this.hasCenterCircle = data.hasCenterCircle;
    this.centerCircleColor = data.centerCircleColor;
    this.centerCircleScale = data.centerCircleScale;

    this.centerText1Color = data.centerText1Color;
    this.centerText1FontSize = data.centerText1FontSize;
    this.centerText1Typeface = data.centerText1Typeface;
    this.centerText1 = data.centerText1;

    this.centerText2Color = data.centerText2Color;
    this.centerText2FontSize = data.centerText2FontSize;
    this.centerText2Typeface = data.centerText2Typeface;
    this.centerText2 = data.centerText2;

    for (ArcValue arcValue : data.values) {
      this.values.add(new ArcValue(arcValue));
    }
  }

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

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

  /**
   * PieChart does not support axes so method call will be ignored
   */
  @Override
  public void setAxisXBottom(Axis axisX) {
    super.setAxisXBottom(null);
  }

  /**
   * PieChart does not support axes so method call will be ignored
   */
  @Override
  public void setAxisYLeft(Axis axisY) {
    super.setAxisYLeft(null);
  }

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

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

  public boolean hasLabels() {
    return hasLabels;
  }

  public PieChartData 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 PieChartData setHasLabelsOnlyForSelected(boolean hasLabelsOnlyForSelected) {
    this.hasLabelsOnlyForSelected = hasLabelsOnlyForSelected;
    if (hasLabelsOnlyForSelected) {
      this.hasLabels = false;
    }
    return this;
  }

  public boolean hasLabelsOutside() {
    return hasLabelsOutside;
  }

  /**
   * Set if labels should be drawn inside circle(false) or outside(true). By default false. If you set it to true you
   * should also change chart fill ration using {@link PieChartView#setCircleFillRatio(float)}. This flag is used only
   * if you also set hasLabels or hasLabelsOnlyForSelected flags.
   */
  public void setHasLabelsOutside(boolean hasLabelsOutside) {
    this.hasLabelsOutside = hasLabelsOutside;
  }

  public boolean hasCenterCircle() {
    return hasCenterCircle;
  }

  public void setHasCenterCircle(boolean hasCenterCircle) {
    this.hasCenterCircle = hasCenterCircle;
  }

  public int getCenterCircleColor() {
    return centerCircleColor;
  }

  public void setCenterCircleColor(int centerCircleColor) {
    this.centerCircleColor = centerCircleColor;
  }

  public float getCenterCircleScale() {
    return centerCircleScale;
  }

  public void setCenterCircleScale(float centerCircleScale) {
    this.centerCircleScale = centerCircleScale;
  }

  public int getCenterText1Color() {
    return centerText1Color;
  }

  public void setCenterText1Color(int centerText1Color) {
    this.centerText1Color = centerText1Color;
  }

  public int getCenterText1FontSize() {
    return centerText1FontSize;
  }

  public void setCenterText1FontSize(int centerText1FontSize) {
    this.centerText1FontSize = centerText1FontSize;
  }

  public Typeface getCenterText1Typeface() {
    return centerText1Typeface;
  }

  public void setCenterText1Typeface(Typeface text1Typeface) {
    this.centerText1Typeface = text1Typeface;
  }

  public String getCenterText1() {
    return centerText1;
  }

  public void setCenterText1(String centerText1) {
    this.centerText1 = centerText1;
  }

  public String getCenterText2() {
    return centerText2;
  }

  /**
   * Note that centerText2 will be drawn only if centerText1 is not empty/null.
   */
  public void setCenterText2(String centerText2) {
    this.centerText2 = centerText2;
  }

  public int getCenterText2Color() {
    return centerText2Color;
  }

  public void setCenterText2Color(int centerText2Color) {
    this.centerText2Color = centerText2Color;
  }

  public int getCenterText2FontSize() {
    return centerText2FontSize;
  }

  public void setCenterText2FontSize(int centerText2FontSize) {
    this.centerText2FontSize = centerText2FontSize;
  }

  public Typeface getCenterText2Typeface() {
    return centerText2Typeface;
  }

  public void setCenterText2Typeface(Typeface text2Typeface) {
    this.centerText2Typeface = text2Typeface;
  }

  public ValueFormatter getFormatter() {
    return formatter;
  }

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

  public static PieChartData generateDummyData() {
    final int numValues = 4;
    PieChartData data = new PieChartData();
    List<ArcValue> values = new ArrayList<ArcValue>(numValues);
    values.add(new ArcValue(40f));
    values.add(new ArcValue(20f));
    values.add(new ArcValue(30f));
    values.add(new ArcValue(50f));
    data.setValues(values);
    return data;
  }
}
Java Source Code List
