org.smallmind.nutsnbolts.layout.BaselineCalculations Maven / Gradle / Ivy

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/*
 * Copyright (c) 2007 through 2024 David Berkman
 *
 * This file is part of the SmallMind Code Project.
 *
 * The SmallMind Code Project is free software, you can redistribute
 * it and/or modify it under either, at your discretion...
 *
 * 1) The terms of GNU Affero General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * ...or...
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 * 2) The terms of the Apache License, Version 2.0.
 *
 * The SmallMind Code Project is distributed in the hope that it will
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 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License or Apache License for more details.
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 * You should have received a copy of the GNU Affero General Public License
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package org.smallmind.nutsnbolts.layout;

import java.util.List;

public class BaselineCalculations {

  private final Pair[] elementAscentsDescents;
  private final double idealizedBaseline;

  public BaselineCalculations (Bias bias, Double maximumOverrideMeasurement, double containerMeasurement, List> elements, LayoutTailor tailor) {

    elementAscentsDescents = new Pair[elements.size()];
    double maxAscent = 0;
    double maxDescent = 0;
    int index = 0;

    for (ParaboxElement element : elements) {

      double currentMeasurement = Math.min(containerMeasurement, (maximumOverrideMeasurement != null) ? maximumOverrideMeasurement : element.getMaximumMeasurement(bias, tailor));
      double currentAscent = element.getBaseline(bias, currentMeasurement);
      double currentDescent;

      if (currentAscent > maxAscent) {
        maxAscent = currentAscent;
      }
      if ((currentDescent = (currentMeasurement - currentAscent)) > maxDescent) {
        maxDescent = currentDescent;
      }

      elementAscentsDescents[index++] = new Pair(currentAscent, currentDescent);
    }

    idealizedBaseline = maxAscent + (Math.max(0, containerMeasurement - (maxAscent + maxDescent)) / 2);
  }

  public double getIdealizedBaseline () {

    return idealizedBaseline;
  }

  public Pair[] getElementAscentsDescents () {

    return elementAscentsDescents;
  }
}