/**********************************************************************

 * File:        fpchop.h  (Formerly fp_chop.h)

 * Description: Code to chop fixed pitch text into character cells.

 * Author:      Ray Smith

 *

 * (C) Copyright 1993, Hewlett-Packard Ltd.

 ** Licensed under the Apache License, Version 2.0 (the "License");

 ** you may not use this file except in compliance with the License.

 ** You may obtain a copy of the License at

 ** http://www.apache.org/licenses/LICENSE-2.0

 ** Unless required by applicable law or agreed to in writing, software

 ** distributed under the License is distributed on an "AS IS" BASIS,

 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 ** See the License for the specific language governing permissions and

 ** limitations under the License.

 *

 **********************************************************************/

#ifndef FPCHOP_H

#define FPCHOP_H

#include "blobbox.h"

#include "params.h"

namespace tesseract {

class C_OUTLINE_FRAG : public ELIST<C_OUTLINE_FRAG>::LINK {

public:

  C_OUTLINE_FRAG() { // empty constructor

    steps = nullptr;

    stepcount = 0;

  }

  ~C_OUTLINE_FRAG() {

    delete[] steps;

  }

  // start coord

  C_OUTLINE_FRAG(ICOORD start_pt,

                 ICOORD end_pt,      // end coord

                 C_OUTLINE *outline, // source of steps

                 int16_t start_index, int16_t end_index);

  // other end

  C_OUTLINE_FRAG(C_OUTLINE_FRAG *head, int16_t tail_y);

  C_OUTLINE *close();        // copy to outline

  C_OUTLINE_FRAG &operator=( // assign

      const C_OUTLINE_FRAG &src);

  ICOORD start;              // start coord

  ICOORD end;                // end coord

  DIR128 *steps;             // step array

  int32_t stepcount;         // no of steps

  C_OUTLINE_FRAG *other_end; // head if a tail

  int16_t ycoord;            // coord of cut pt

private:

  // Copy constructor (currently unused, therefore private).

  C_OUTLINE_FRAG(const C_OUTLINE_FRAG &other) = delete;

};

ELISTIZEH(C_OUTLINE_FRAG)

extern INT_VAR_H(textord_fp_chop_error);

ROW *fixed_pitch_words( // find lines

    TO_ROW *row,        // row to do

    FCOORD rotation     // for drawing

);

void split_to_blob(                 // split the blob

    BLOBNBOX *blob,                 // blob to split

    int16_t chop_coord,             // place to chop

    float pitch_error,              // allowed deviation

    C_OUTLINE_LIST *left_coutlines, // for cblobs

    C_OUTLINE_LIST *right_coutlines);

} // namespace tesseract

#endif