gap_map.h

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// 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 GAP_MAP_H
#define GAP_MAP_H
 
#include "blobbox.h"
 
namespace tesseract {
 
class GAPMAP {
public:
  GAPMAP( // constructor
      TO_BLOCK *block);
 
  ~GAPMAP() { // destructor
    delete[] map;
  }
 
  bool table_gap(     // Is gap a table?
      int16_t left,   // From here
      int16_t right); // To here
 
private:
  int16_t total_rows;  // in block
  int16_t min_left;    // Left extreme
  int16_t max_right;   // Right extreme
  int16_t bucket_size; // half an x ht
  int16_t *map;        // empty counts
  int16_t map_max;     // map[0..max_map] defined
  bool any_tabs;
};
 
/*-----------------------------*/
 
extern BOOL_VAR_H(gapmap_debug);
extern BOOL_VAR_H(gapmap_use_ends);
extern BOOL_VAR_H(gapmap_no_isolated_quanta);
extern double_VAR_H(gapmap_big_gaps);
 
} // namespace tesseract
 
#endif