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65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
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///////////////////////////////////////////////////////////////////////
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// File: mutableiterator.h
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// Description: Iterator for tesseract results providing access to
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// both high-level API and Tesseract internal data structures.
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// Author: David Eger
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// Created: Thu Feb 24 19:01:06 PST 2011
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//
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// (C) Copyright 2011, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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///////////////////////////////////////////////////////////////////////
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#ifndef TESSERACT_CCMAIN_MUTABLEITERATOR_H__
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#define TESSERACT_CCMAIN_MUTABLEITERATOR_H__
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#include "resultiterator.h"
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class BLOB_CHOICE_IT;
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namespace tesseract {
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class Tesseract;
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// Class to iterate over tesseract results, providing access to all levels
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// of the page hierarchy, without including any tesseract headers or having
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// to handle any tesseract structures.
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// WARNING! This class points to data held within the TessBaseAPI class, and
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// therefore can only be used while the TessBaseAPI class still exists and
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// has not been subjected to a call of Init, SetImage, Recognize, Clear, End
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// DetectOS, or anything else that changes the internal PAGE_RES.
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// See apitypes.h for the definition of PageIteratorLevel.
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// See also base class PageIterator, which contains the bulk of the interface.
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// ResultIterator adds text-specific methods for access to OCR output.
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// MutableIterator adds access to internal data structures.
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class MutableIterator : public ResultIterator {
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public:
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// See argument descriptions in ResultIterator()
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MutableIterator(PAGE_RES* page_res, Tesseract* tesseract,
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int scale, int scaled_yres,
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int rect_left, int rect_top,
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int rect_width, int rect_height)
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: ResultIterator(
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LTRResultIterator(page_res, tesseract, scale, scaled_yres, rect_left,
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rect_top, rect_width, rect_height)) {}
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virtual ~MutableIterator() {}
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// See PageIterator and ResultIterator for most calls.
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// Return access to Tesseract internals.
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const PAGE_RES_IT *PageResIt() const { return it_; }
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};
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} // namespace tesseract.
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#endif // TESSERACT_CCMAIN_MUTABLEITERATOR_H__
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