praktikum-holons/src/holeg/addon/helper/RandomPriotity.java

package holeg.addon.helper;

import holeg.model.HolonElement.Priority;
import java.util.Hashtable;
import java.util.logging.Logger;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;

public class RandomPriotity extends JPanel {

  private static final Logger log = Logger.getLogger(RandomPriotity.class.getName());
  private final int start = 0, end = 100;
  /**
   * Its like a Gradient the Values are on one Axis from Start to End: |--start--lm--mh--he--end--|
   * lm: lowMedium mh: mediumHigh he: highEssential
   */
  private int lm = 25, mh = 50, he = 75;
  private JSlider lowChanceSlider = new JSlider(JSlider.HORIZONTAL, 0, 100, lm - start);
  private JSlider mediumChanceSlider = new JSlider(JSlider.HORIZONTAL, 0, 100, mh - lm);
  private JSlider highChanceSlider = new JSlider(JSlider.HORIZONTAL, 0, 100, he - mh);
  private JSlider essentialChanceSlider = new JSlider(JSlider.HORIZONTAL, 0, 100, end - he);


  public RandomPriotity() {
    this.setLayout(new BoxLayout(this, BoxLayout.PAGE_AXIS));
    this.add(initVisualizeSlider(this.lowChanceSlider, "Low"));
    this.add(initVisualizeSlider(this.mediumChanceSlider, "Medium"));
    this.add(initVisualizeSlider(this.highChanceSlider, "High"));
    this.add(initVisualizeSlider(this.essentialChanceSlider, "Essential"));
    lowChanceSlider.setToolTipText("" + ((double) lowChanceSlider.getValue() / 100.0));
    mediumChanceSlider.setToolTipText("" + ((double) mediumChanceSlider.getValue() / 100.0));
    highChanceSlider.setToolTipText("" + ((double) highChanceSlider.getValue() / 100.0));
    essentialChanceSlider.setToolTipText("" + ((double) essentialChanceSlider.getValue() / 100.0));
    lowChanceSlider.addChangeListener(actionEvent -> {
      setLM(lowChanceSlider.getValue());
      updateSliders();
      lowChanceSlider.setToolTipText("" + ((double) lowChanceSlider.getValue() / 100.0));
      log.info("lowChance = " + lowChanceSlider.getValue());
    });
    mediumChanceSlider.addChangeListener(actionEvent -> {
      if (lm + mediumChanceSlider.getValue() <= 100) {
        setMH(lm + mediumChanceSlider.getValue());
      } else {
        setLM(end - mediumChanceSlider.getValue());
      }
      updateSliders();
      mediumChanceSlider.setToolTipText("" + ((double) mediumChanceSlider.getValue() / 100.0));
      log.info("mediumChance = " + mediumChanceSlider.getValue());
    });
    highChanceSlider.addChangeListener(actionEvent -> {
      if (mh + highChanceSlider.getValue() <= 100) {
        setHE(mh + highChanceSlider.getValue());
      } else {
        setMH(end - highChanceSlider.getValue());
      }
      updateSliders();
      highChanceSlider.setToolTipText("" + ((double) highChanceSlider.getValue() / 100.0));
      log.info("highChance = " + highChanceSlider.getValue());
    });
    essentialChanceSlider.addChangeListener(actionEvent -> {
      setHE(end - essentialChanceSlider.getValue());
      updateSliders();
      essentialChanceSlider.setToolTipText(
          "" + ((double) essentialChanceSlider.getValue() / 100.0));
      log.info("essentialChance = " + essentialChanceSlider.getValue());
    });
  }

  private void setLM(int value) {
    lm = clamp(value, 0, 100);
    if (lm > mh) {
      mh = lm;
    }
    if (lm > he) {
      he = lm;
    }
  }

  private void setMH(int value) {
    mh = clamp(value, 0, 100);
    if (mh < lm) {
      lm = mh;
    }
    if (mh > he) {
      he = mh;
    }
  }

  private void setHE(int value) {
    he = clamp(value, 0, 100);
    if (he < lm) {
      lm = he;
    }
    if (he < mh) {
      mh = he;
    }
  }


  private int clamp(int input, int min, int max) {
    return Math.max(min, Math.min(max, input));
  }


  private void updateSliders() {
    lowChanceSlider.setValue(lm - start);
    mediumChanceSlider.setValue(mh - lm);
    highChanceSlider.setValue(he - mh);
    essentialChanceSlider.setValue(end - he);
  }


  private JSlider initVisualizeSlider(JSlider jslider, String name) {
    jslider.setBorder(BorderFactory.createTitledBorder(name));
    jslider.setMajorTickSpacing(50);
    jslider.setMinorTickSpacing(5);
    jslider.setPaintTicks(true);
    Hashtable<Integer, JLabel> labelTable = new Hashtable<Integer, JLabel>();
    labelTable.put(Integer.valueOf(0), new JLabel("0.0"));
    labelTable.put(Integer.valueOf(50), new JLabel("0.5"));
    labelTable.put(Integer.valueOf(100), new JLabel("1.0"));
    jslider.setLabelTable(labelTable);
    jslider.setPaintLabels(true);
    return jslider;
  }

  public Priority getPriority() {
    double randomDoubleInRange = Math.random() * 100.0;
    if (randomDoubleInRange <= lm) {
      return Priority.Low;
    } else if (randomDoubleInRange <= mh) {
      return Priority.Medium;
    } else if (randomDoubleInRange <= he) {
      return Priority.High;
    } else {
      return Priority.Essential;
    }
  }

  @Override
  public void setEnabled(boolean value) {
    lowChanceSlider.setEnabled(value);
    mediumChanceSlider.setEnabled(value);
    highChanceSlider.setEnabled(value);
    essentialChanceSlider.setEnabled(value);
  }
}