ccmain/werdit.cpp

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#include "mfcpch.h"
#include          "werdit.h"

#define EXTERN

//EXTERN BOOL_VAR(wordit_linearc,FALSE,"Pass poly of linearc to Tess");

void WERDIT::start_page(                        //set iterators
                        BLOCK_LIST *block_list  //blocks to check
                       ) {
  block_it.set_to_list (block_list);
  block_it.mark_cycle_pt ();
  do {
    while (block_it.data ()->row_list ()->empty ()
    && !block_it.cycled_list ()) {
      block_it.forward ();
    }
    if (!block_it.data ()->row_list ()->empty ()) {
      row_it.set_to_list (block_it.data ()->row_list ());
      row_it.mark_cycle_pt ();
      while (row_it.data ()->word_list ()->empty ()
      && !row_it.cycled_list ()) {
        row_it.forward ();
      }
      if (!row_it.data ()->word_list ()->empty ()) {
        word_it.set_to_list (row_it.data ()->word_list ());
        word_it.mark_cycle_pt ();
      }
    }
  }
  while (!block_it.cycled_list () && row_it.data ()->word_list ()->empty ());
}


WERD *WERDIT::forward() {
  WERD *word;         //actual word
  //WERD    *larc_word;          //linearc copy
  WERD *result;                  //output word
  ROW *row;                      //row of word

  if (word_it.cycled_list ()) {
    return NULL;                 //finished page
  }
  else {
    word = word_it.data ();
    row = row_it.data ();
    word_it.forward ();
    if (word_it.cycled_list ()) {
      row_it.forward ();         //finished row
      if (row_it.cycled_list ()) {
        do {
          block_it.forward ();   //finished block
          if (!block_it.cycled_list ()) {
            row_it.set_to_list (block_it.data ()->row_list ());
            row_it.mark_cycle_pt ();
          }
        }
        //find non-empty block
        while (!block_it.cycled_list ()
          && row_it.cycled_list ());
      }
      if (!row_it.cycled_list ()) {
        word_it.set_to_list (row_it.data ()->word_list ());
        word_it.mark_cycle_pt ();
      }
    }

    //              if (wordit_linearc && !word->flag(W_POLYGON))
    //              {
    //                      larc_word=word->larc_copy(row->x_height());
    //                      result=larc_word->poly_copy(row->x_height());
    //                      delete larc_word;
    //              }
    //              else
    result = word->poly_copy (row->x_height ());
    return result;
  }
}


WERD *make_pseudo_word(
                       BLOCK_LIST *block_list,
                       BOX &selection_box,
                       BLOCK *&pseudo_block,
                       ROW *&pseudo_row
                      ) {
  BLOCK_IT block_it(block_list); 
  BLOCK *block;
  ROW_IT row_it;
  ROW *row;
  WERD_IT word_it;
  WERD *word;
  PBLOB_IT blob_it;
  PBLOB *blob;
  PBLOB_LIST new_blobs;          //list of gathered blobs
                                 //iterator
  PBLOB_IT new_blob_it = &new_blobs;
  WERD *pseudo_word;             //fabricated word
  WERD *poly_word;               //poly copy of word
  //  WERD         *larc_word;     //linearc copy

  for (block_it.mark_cycle_pt ();
  !block_it.cycled_list (); block_it.forward ()) {
    block = block_it.data ();
    if (block->bounding_box ().overlap (selection_box)) {
      pseudo_block = block;
      row_it.set_to_list (block->row_list ());
      for (row_it.mark_cycle_pt ();
      !row_it.cycled_list (); row_it.forward ()) {
        row = row_it.data ();
        if (row->bounding_box ().overlap (selection_box)) {
          word_it.set_to_list (row->word_list ());
          for (word_it.mark_cycle_pt ();
          !word_it.cycled_list (); word_it.forward ()) {
            word = word_it.data ();
            if (word->bounding_box ().overlap (selection_box)) {
              //  if (wordit_linearc && !word->flag(W_POLYGON))
              //  {
              //     larc_word=word->larc_copy(row->x_height());
              //     poly_word=larc_word->poly_copy(row->x_height());
              //     delete larc_word;
              //  }
              //   else
              poly_word = word->poly_copy (row->x_height ());
              blob_it.set_to_list (poly_word->blob_list ());
              for (blob_it.mark_cycle_pt ();
              !blob_it.cycled_list (); blob_it.forward ()) {
                blob = blob_it.data ();
                if (blob->bounding_box ().
                overlap (selection_box)) {
                  new_blob_it.add_after_then_move (blob_it.extract ());
                  pseudo_row = row; //steal off list
                }
              }
              delete poly_word;  //get rid of it
            }
          }
        }
      }
    }
  }
  if (!new_blobs.empty ()) {
    pseudo_word = new WERD (&new_blobs, 1, NULL); //make new word
  }
  else
    pseudo_word = NULL;
  return pseudo_word;
}

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