Tesseract  3.02
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
werdit.cpp
Go to the documentation of this file.
1 /**********************************************************************
2  * File: werdit.cpp (Formerly wordit.c)
3  * Description: An iterator for passing over all the words in a document.
4  * Author: Ray Smith
5  * Created: Mon Apr 27 08:51:22 BST 1992
6  *
7  * (C) Copyright 1992, Hewlett-Packard Ltd.
8  ** Licensed under the Apache License, Version 2.0 (the "License");
9  ** you may not use this file except in compliance with the License.
10  ** You may obtain a copy of the License at
11  ** http://www.apache.org/licenses/LICENSE-2.0
12  ** Unless required by applicable law or agreed to in writing, software
13  ** distributed under the License is distributed on an "AS IS" BASIS,
14  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  ** See the License for the specific language governing permissions and
16  ** limitations under the License.
17  *
18  **********************************************************************/
19 
20 #include "mfcpch.h"
21 #include "werdit.h"
22 
23 /**********************************************************************
24  * make_pseudo_word
25  *
26  * Make all the blobs inside a selection into a single word.
27  * The word is always a copy and needs to be deleted.
28  **********************************************************************/
29 
30 WERD *make_pseudo_word(PAGE_RES* page_res, // Blocks to check.
31  TBOX &selection_box,
32  BLOCK *&pseudo_block,
33  ROW *&pseudo_row) { // Row of selection.
34  PAGE_RES_IT pr_it(page_res);
35  C_BLOB_LIST new_blobs; // list of gathered blobs
36  C_BLOB_IT new_blob_it = &new_blobs; // iterator
37  WERD *pseudo_word; // fabricated word
38 
39  for (WERD_RES* word_res = pr_it.word(); word_res != NULL;
40  word_res = pr_it.forward()) {
41  WERD* word = word_res->word;
42  if (word->bounding_box().overlap(selection_box)) {
43  C_BLOB_IT blob_it(word->cblob_list());
44  for (blob_it.mark_cycle_pt();
45  !blob_it.cycled_list(); blob_it.forward()) {
46  C_BLOB* blob = blob_it.data();
47  if (blob->bounding_box().overlap(selection_box)) {
48  new_blob_it.add_after_then_move(C_BLOB::deep_copy(blob));
49  pseudo_row = pr_it.row()->row;
50  pseudo_block = pr_it.block()->block;
51  }
52  }
53  }
54  }
55  if (!new_blobs.empty())
56  pseudo_word = new WERD(&new_blobs, 1, NULL);
57  else
58  pseudo_word = NULL;
59  return pseudo_word;
60 }