示例#1
0
// Helper runs all the checks on a seam to make sure it is valid.
// Returns the seam if OK, otherwise deletes the seam and returns NULL.
static SEAM* CheckSeam(int debug_level, inT32 blob_number, TWERD* word,
                       TBLOB* blob, TBLOB* other_blob,
                       const GenericVector<SEAM*>& seams, SEAM* seam) {
  if (seam == NULL ||
      blob->outlines == NULL ||
      other_blob->outlines == NULL ||
      total_containment(blob, other_blob) ||
      check_blob(other_blob) ||
      !(check_seam_order(blob, seam) &&
          check_seam_order(other_blob, seam)) ||
      any_shared_split_points(seams, seam) ||
      !test_insert_seam(seams, word, blob_number)) {
    word->blobs.remove(blob_number + 1);
    if (seam) {
      undo_seam(blob, other_blob, seam);
      delete seam;
      seam = NULL;
#ifndef GRAPHICS_DISABLED
      if (debug_level) {
        if (debug_level >2)
          display_blob(blob, Red);
        tprintf("\n** seam being removed ** \n");
      }
#endif
    } else {
      delete other_blob;
    }
    return NULL;
  }
  return seam;
}
示例#2
0
/**********************************************************************
 * attempt_blob_chop
 *
 * Try to split the this blob after this one.  Check to make sure that
 * it was successful.
 **********************************************************************/
SEAM *attempt_blob_chop(TWERD *word, INT32 blob_number, SEAMS seam_list) {
  TBLOB *blob;
  TBLOB *other_blob;
  SEAM *seam;
  TBLOB *last_blob;
  TBLOB *next_blob;
  INT16 x;

  if (first_pass)
    chops_attempted1++;
  else
    chops_attempted2++;

  last_blob = NULL;
  blob = word->blobs;
  for (x = 0; x < blob_number; x++) {
    last_blob = blob;
    blob = blob->next;
  }
  next_blob = blob->next;

  if (repair_unchopped_blobs)
    preserve_outline_tree (blob->outlines);
  other_blob = newblob ();       /* Make new blob */
  other_blob->next = blob->next;
  other_blob->outlines = NULL;
  blob->next = other_blob;

  seam = pick_good_seam (blob);
  if (chop_debug) {
    if (seam != NULL) {
      print_seam ("Good seam picked=", seam);
    }
    else
      cprintf ("\n** no seam picked *** \n");
  }
  if (seam) {
    apply_seam(blob, other_blob, seam);
  }

  if ((seam == NULL) ||
    (blob->outlines == NULL) ||
    (other_blob->outlines == NULL) ||
    total_containment (blob, other_blob) ||
    check_blob (other_blob) ||
    !(check_seam_order (blob, seam) &&
    check_seam_order (other_blob, seam)) ||
    any_shared_split_points (seam_list, seam) ||
    !test_insert_seam(seam_list, blob_number, blob, word->blobs)) {

    blob->next = next_blob;
    if (seam) {
      undo_seam(blob, other_blob, seam);
      delete_seam(seam);
#ifndef GRAPHICS_DISABLED
      if (chop_debug) {
        display_blob(blob, Red);
        cprintf ("\n** seam being removed ** \n");
      }
#endif
    }
    else {
      oldblob(other_blob);
    }

    if (repair_unchopped_blobs)
      restore_outline_tree (blob->outlines);
    return (NULL);
  }
  return (seam);
}
示例#3
0
SEAM *Wordrec::attempt_blob_chop(TWERD *word, inT32 blob_number,
                                 bool italic_blob, SEAMS seam_list) {
  TBLOB *blob;
  TBLOB *other_blob;
  SEAM *seam;
  TBLOB *last_blob;
  TBLOB *next_blob;
  inT16 x;

  last_blob = NULL;
  blob = word->blobs;
  for (x = 0; x < blob_number; x++) {
    last_blob = blob;
    blob = blob->next;
  }
  next_blob = blob->next;

  if (repair_unchopped_blobs)
    preserve_outline_tree (blob->outlines);
  other_blob = new TBLOB;       /* Make new blob */
  other_blob->next = blob->next;
  other_blob->outlines = NULL;
  blob->next = other_blob;

  seam = pick_good_seam(blob);
  if (seam == NULL && word->latin_script) {
    // If the blob can simply be divided into outlines, then do that.
    TPOINT location;
    if (divisible_blob(blob, italic_blob, &location)) {
      seam = new_seam(0.0f, location, NULL, NULL, NULL);
    }
  }
  if (chop_debug) {
    if (seam != NULL) {
      print_seam ("Good seam picked=", seam);
    }
    else
      cprintf ("\n** no seam picked *** \n");
  }
  if (seam) {
    apply_seam(blob, other_blob, italic_blob, seam);
  }

  if ((seam == NULL) ||
    (blob->outlines == NULL) ||
    (other_blob->outlines == NULL) ||
    total_containment (blob, other_blob) ||
    check_blob (other_blob) ||
    !(check_seam_order (blob, seam) &&
    check_seam_order (other_blob, seam)) ||
    any_shared_split_points (seam_list, seam) ||
    !test_insert_seam(seam_list, blob_number, blob, word->blobs)) {

    blob->next = next_blob;
    if (seam) {
      undo_seam(blob, other_blob, seam);
      delete_seam(seam);
#ifndef GRAPHICS_DISABLED
      if (chop_debug) {
        if (chop_debug >2)
          display_blob(blob, Red);
        cprintf ("\n** seam being removed ** \n");
      }
#endif
    } else {
      delete other_blob;
    }

    if (repair_unchopped_blobs)
      restore_outline_tree (blob->outlines);
    return (NULL);
  }
  return (seam);
}