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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 }