Tesseract  3.02
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genblob.cpp
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1 /**********************************************************************
2  * File: genblob.cpp (Formerly gblob.c)
3  * Description: Generic Blob processing routines
4  * Author: Phil Cheatle
5  * Created: Mon Nov 25 10:53:26 GMT 1991
6  *
7  * (C) Copyright 1991, 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 "genblob.h"
22 #include "stepblob.h"
23 
24 /**********************************************************************
25  * c_blob_comparator()
26  *
27  * Blob comparator used to sort a blob list so that blobs are in increasing
28  * order of left edge.
29  **********************************************************************/
30 
31 int c_blob_comparator( // sort blobs
32  const void *blob1p, // ptr to ptr to blob1
33  const void *blob2p // ptr to ptr to blob2
34  ) {
35  C_BLOB *blob1 = *(C_BLOB **) blob1p;
36  C_BLOB *blob2 = *(C_BLOB **) blob2p;
37 
38  return blob1->bounding_box ().left () - blob2->bounding_box ().left ();
39 }