OpenMesh: OpenMesh/Core/IO/reader/BaseReader.hh Source File

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BaseReader.hh
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41
42
43
44
45 //=============================================================================
46 //
47 // Implements the baseclass for IOManager file access modules
48 //
49 //=============================================================================
50
51 #pragma once
52
53 //=== INCLUDES ================================================================
54
55
56 // STD C++
57 #include <iosfwd>
58 #include <string>
59 #include <cctype>
60 #include <functional>
61 #include <algorithm>
62
63 // OpenMesh
64 #include <OpenMesh/Core/System/config.h>
65 #include <OpenMesh/Core/IO/Options.hh>
66 #include <OpenMesh/Core/IO/importer/BaseImporter.hh>
67 #include <OpenMesh/Core/Utils/SingletonT.hh>
68
69
70 //== NAMESPACES ===============================================================
71
72
73 namespace OpenMesh {
74 namespace IO {
75
76
77 //=== IMPLEMENTATION ==========================================================
78
79
86 class OPENMESHDLLEXPORT BaseReader
87 {
88 public:
89
91 virtual ~BaseReader() {}
92
94 virtual std::string get_description() const = 0;
95
99 virtual std::string get_extensions() const = 0;
100
102 virtual std::string get_magic() const { return std::string(""); }
103
104
112 virtual bool read(const std::string& _filename,
113 BaseImporter& _bi,
114 Options& _opt) = 0;
115
122 virtual bool read(std::istream& _is,
123 BaseImporter& _bi,
124 Options& _opt) = 0;
125
126
132 virtual bool can_u_read(const std::string& _filename) const;
133
134
135 protected:
136
137 // case insensitive search for _ext in _fname.
138 bool check_extension(const std::string& _fname,
139 const std::string& _ext) const;
140 };
141
142
150 static inline std::string &left_trim(std::string &_string) {
151
152 // Find out if the compiler supports CXX11
153 #if ( __cplusplus >= 201103L || _MSVC_LANG >= 201103L )
154 // as with CXX11 we can use lambda expressions
155 _string.erase(_string.begin(), std::find_if(_string.begin(), _string.end(), [](int i)->int { return ! std::isspace(i); }));
156 #else
157 // we do what we did before
158 _string.erase(_string.begin(), std::find_if(_string.begin(), _string.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
159 #endif
160
161 return _string;
162 }
163
171 static inline std::string &right_trim(std::string &_string) {
172
173 // Find out if the compiler supports CXX11
174 #if ( __cplusplus >= 201103L || _MSVC_LANG >= 201103L )
175 // as with CXX11 we can use lambda expressions
176 _string.erase(std::find_if(_string.rbegin(), _string.rend(), [](int i)->int { return ! std::isspace(i); } ).base(), _string.end());
177 #else
178 // we do what we did before
179 _string.erase(std::find_if(_string.rbegin(), _string.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), _string.end());
180 #endif
181
182
183
184 return _string;
185 }
186
194 static inline std::string &trim(std::string &_string) {
195 return left_trim(right_trim(_string));
196 }
197
198
199
200 //=============================================================================
201 } // namespace IO
202 } // namespace OpenMesh
203 //=============================================================================
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
OpenMesh::IO::BaseImporter
Base class for importer modules.
Definition: BaseImporter.hh:84
OpenMesh::IO::Options
Set options for reader/writer modules.
Definition: Options.hh:91
OpenMesh::IO::BaseReader
Base class for reader modules.
Definition: BaseReader.hh:87
OpenMesh::IO::BaseReader::read
virtual bool read(std::istream &_is, BaseImporter &_bi, Options &_opt)=0
Reads a mesh given by a std::stream.
OpenMesh::IO::BaseReader::get_description
virtual std::string get_description() const =0
Returns a brief description of the file type that can be parsed.
OpenMesh::IO::BaseReader::get_extensions
virtual std::string get_extensions() const =0
Returns a string with the accepted file extensions separated by a whitespace and in small caps.
OpenMesh::IO::BaseReader::get_magic
virtual std::string get_magic() const
Return magic bits used to determine file format.
Definition: BaseReader.hh:102
OpenMesh::IO::BaseReader::read
virtual bool read(const std::string &_filename, BaseImporter &_bi, Options &_opt)=0
Reads a mesh given by a filename.
OpenMesh::IO::BaseReader::~BaseReader
virtual ~BaseReader()
Destructor.
Definition: BaseReader.hh:91