Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/ccmain/werdit.cpp @ 46:7ee69f120f19 default tip

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>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
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1 /**********************************************************************
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2 * File: werdit.cpp (Formerly wordit.c)
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3 * Description: An iterator for passing over all the words in a document.
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4 * Author: Ray Smith
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5 * Created: Mon Apr 27 08:51:22 BST 1992
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6 *
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7 * (C) Copyright 1992, Hewlett-Packard Ltd.
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8 ** Licensed under the Apache License, Version 2.0 (the "License");
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9 ** you may not use this file except in compliance with the License.
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10 ** You may obtain a copy of the License at
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11 ** http://www.apache.org/licenses/LICENSE-2.0
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12 ** Unless required by applicable law or agreed to in writing, software
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13 ** distributed under the License is distributed on an "AS IS" BASIS,
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14 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 ** See the License for the specific language governing permissions and
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16 ** limitations under the License.
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17 *
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18 **********************************************************************/
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20 #include "werdit.h"
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22 #include "errcode.h" // for ASSERT_HOST
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23 #include "pageres.h" // for PAGE_RES_IT, PAGE_RES (ptr only), WERD_RES
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24 #include "stepblob.h" // for C_BLOB_IT, C_BLOB, C_BLOB_LIST
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25 #include "werd.h" // for WERD
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27 namespace tesseract {
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29 /**********************************************************************
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30 * make_pseudo_word
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31 *
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32 * Make all the blobs inside a selection into a single word.
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33 * The returned PAGE_RES_IT* it points to the new word. After use, call
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34 * it->DeleteCurrentWord() to delete the fake word, and then
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35 * delete it to get rid of the iterator itself.
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36 **********************************************************************/
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38 PAGE_RES_IT *make_pseudo_word(PAGE_RES *page_res, const TBOX &selection_box) {
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39 PAGE_RES_IT pr_it(page_res);
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40 C_BLOB_LIST new_blobs; // list of gathered blobs
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41 C_BLOB_IT new_blob_it = &new_blobs; // iterator
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43 for (WERD_RES *word_res = pr_it.word(); word_res != nullptr; word_res = pr_it.forward()) {
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44 WERD *word = word_res->word;
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45 if (word->bounding_box().overlap(selection_box)) {
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46 C_BLOB_IT blob_it(word->cblob_list());
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47 for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
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48 C_BLOB *blob = blob_it.data();
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49 if (blob->bounding_box().overlap(selection_box)) {
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50 new_blob_it.add_after_then_move(C_BLOB::deep_copy(blob));
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51 }
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52 }
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53 if (!new_blobs.empty()) {
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54 WERD *pseudo_word = new WERD(&new_blobs, 1, nullptr);
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55 word_res = pr_it.InsertSimpleCloneWord(*word_res, pseudo_word);
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56 auto *it = new PAGE_RES_IT(page_res);
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57 while (it->word() != word_res && it->word() != nullptr) {
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58 it->forward();
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59 }
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60 ASSERT_HOST(it->word() == word_res);
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61 return it;
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62 }
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63 }
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64 }
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65 return nullptr;
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66 }
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67
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68 } // namespace tesseract