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BaseReader.hh
1 /*===========================================================================*\
2 * *
3 * OpenMesh *
4 * Copyright (C) 2001-2012 by Computer Graphics Group, RWTH Aachen *
5 * www.openmesh.org *
6 * *
7 *---------------------------------------------------------------------------*
8 * This file is part of OpenMesh. *
9 * *
10 * OpenMesh is free software: you can redistribute it and/or modify *
11 * it under the terms of the GNU Lesser General Public License as *
12 * published by the Free Software Foundation, either version 3 of *
13 * the License, or (at your option) any later version with the *
14 * following exceptions: *
15 * *
16 * If other files instantiate templates or use macros *
17 * or inline functions from this file, or you compile this file and *
18 * link it with other files to produce an executable, this file does *
19 * not by itself cause the resulting executable to be covered by the *
20 * GNU Lesser General Public License. This exception does not however *
21 * invalidate any other reasons why the executable file might be *
22 * covered by the GNU Lesser General Public License. *
23 * *
24 * OpenMesh is distributed in the hope that it will be useful, *
25 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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27 * GNU Lesser General Public License for more details. *
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33 \*===========================================================================*/
34
35 /*===========================================================================*\
36 * *
37 * $Revision: 752 $ *
38 * $Date: 2012-10-18 13:09:34 +0200 (Do, 18 Okt 2012) $ *
39 * *
40 \*===========================================================================*/
41
42
43 //=============================================================================
44 //
45 // Implements the baseclass for IOManager file access modules
46 //
47 //=============================================================================
48
49
50 #ifndef __BASEREADER_HH__
51 #define __BASEREADER_HH__
52
53
54 //=== INCLUDES ================================================================
55
56
57 // STD C++
58 #include <iostream>
59 #include <string>
60 #include <cctype>
61
62 // OpenMesh
63 #include <OpenMesh/Core/System/config.h>
64 #include <OpenMesh/Core/IO/Options.hh>
65 #include <OpenMesh/Core/IO/importer/BaseImporter.hh>
66 #include <OpenMesh/Core/Utils/SingletonT.hh>
67
68
69 //== NAMESPACES ===============================================================
70
71
72 namespace OpenMesh {
73 namespace IO {
74
75
76 //=== IMPLEMENTATION ==========================================================
77
78
85 class OPENMESHDLLEXPORT BaseReader
86 {
87 public:
88
90 virtual ~BaseReader() {};
91
93 virtual std::string get_description() const = 0;
94
98 virtual std::string get_extensions() const = 0;
99
101 virtual std::string get_magic() const { return std::string(""); }
102
103
111 virtual bool read(const std::string& _filename,
112 BaseImporter& _bi,
113 Options& _opt) = 0;
114
121 virtual bool read(std::istream& _is,
122 BaseImporter& _bi,
123 Options& _opt) = 0;
124
125
127 virtual bool can_u_read(const std::string& _filename) const;
128
129
130 protected:
131
132 // case insensitive search for _ext in _fname.
133 bool check_extension(const std::string& _fname,
134 const std::string& _ext) const;
135 };
136
137
145 static inline std::string &left_trim(std::string &_string) {
146 _string.erase(_string.begin(), std::find_if(_string.begin(), _string.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
147 return _string;
148 }
149
157 static inline std::string &right_trim(std::string &_string) {
158 _string.erase(std::find_if(_string.rbegin(), _string.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), _string.end());
159 return _string;
160 }
161
169 static inline std::string &trim(std::string &_string) {
170 return left_trim(right_trim(_string));
171 }
172
173
174
175 //=============================================================================
176 } // namespace IO
177 } // namespace OpenMesh
178 //=============================================================================
179 #endif
180 //=============================================================================