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74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
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/**********************************************************************
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* File: char_samp_set.h
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* Description: Declaration of a Character Sample Set Class
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* Author: Ahmad Abdulkader
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* Created: 2007
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*
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* (C) Copyright 2008, 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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// The CharSampSet set encapsulates a set of CharSet objects typically
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// but not necessarily loaded from a file
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// It provides methods to load samples from File, Create a new file and
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// Add new char samples to the set
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#ifndef CHAR_SAMP_SET_H
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#define CHAR_SAMP_SET_H
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#include <stdlib.h>
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#include <stdio.h>
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#include <string>
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#include "char_samp.h"
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#include "char_samp_enum.h"
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#include "char_set.h"
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namespace tesseract {
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// chunks of samp pointers to allocate
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#define SAMP_ALLOC_BLOCK 10000
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class CharSampSet {
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public:
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CharSampSet();
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~CharSampSet();
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// return sample count
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int SampleCount() const { return cnt_; }
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// returns samples buffer
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CharSamp ** Samples() const { return samp_buff_; }
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// Create a CharSampSet set object from a file
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static CharSampSet *FromCharDumpFile(string file_name);
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// Enumerate the Samples in the set one-by-one calling the enumertor's
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// EnumCharSamp method for each sample
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static bool EnumSamples(string file_name, CharSampEnum *enumerator);
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// Create a new Char Dump file
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static FILE *CreateCharDumpFile(string file_name);
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// Add a new sample to the set
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bool Add(CharSamp *char_samp);
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private:
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// sample count
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int cnt_;
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// the char samp array
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CharSamp **samp_buff_;
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// Are the samples owned by the set or not.
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// Determines whether we should cleanup in the end
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bool own_samples_;
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// Cleanup
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void Cleanup();
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// Load character samples from a file
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bool LoadCharSamples(FILE *fp);
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};
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}
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#endif // CHAR_SAMP_SET_H
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