Method sortImpl

core/src/processing/data/IntDict.java:697–731

(final boolean useKeys, final boolean reverse,
                          final boolean stable)

  protected void sortImpl(final boolean useKeys, final boolean reverse,
                          final boolean stable) {
    Sort s = new Sort() {
      @Override
      public int size() {
        return count;
      }

      @Override
      public int compare(int a, int b) {
        int diff = 0;
        if (useKeys) {
          diff = keys[a].compareToIgnoreCase(keys[b]);
          if (diff == 0) {
            diff = values[a] - values[b];
          }
        } else {  // sort values
          diff = values[a] - values[b];
          if (diff == 0 && stable) {
            diff = keys[a].compareToIgnoreCase(keys[b]);
          }
        }
        return reverse ? -diff : diff;
      }

      @Override
      public void swap(int a, int b) {
        IntDict.this.swap(a, b);
      }
    };
    s.run();

    // Set the indices after sort/swaps (performance fix 160411)
    resetIndices();
  }


  /**