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package org.mozc.android.inputmethod.japanese.keyboard;

import com.google.common.base.Preconditions;

import java.util.Collections;
import java.util.List;

/**
 * A simple model class of a row. This class corresponds to {@code &lt;Row&gt;} element
 * in a xml resource file. Each row can contain a sequence of {@code Key}s.
 *
 * Here is a list this class supports.
 * <ul>
 *   <li> {@code height}: the row's height.
 *   <li> {@code verticalGap}: the gap between the next row and this class.
 * </ul>
 *
 */
public class Row {

  private final List<Key> keyList;
  private final int height;
  private final int verticalGap;

  public Row(List<? extends Key> keyList, int height, int verticalGap) {
    this.keyList = Collections.unmodifiableList(Preconditions.checkNotNull(keyList));
    this.height = height;
    this.verticalGap = verticalGap;
  }

  public List<Key> getKeyList() {
    return keyList;
  }

  public int getHeight() {
    return height;
  }

  public int getVerticalGap() {
    return verticalGap;
  }
}