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37 * Declares gmx::FileNameOption and gmx::FileNameOptionInfo.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_options
43 #ifndef GMX_OPTIONS_FILENAMEOPTION_H
44 #define GMX_OPTIONS_FILENAMEOPTION_H
48 #include "abstractoption.h"
49 #include "optionfiletype.h"
54 class FileNameOptionInfo;
55 class FileNameOptionStorage;
58 * Specifies an option that provides file names.
60 * Public methods in this class do not throw.
63 * \ingroup module_options
65 class FileNameOption : public OptionTemplate<std::string, FileNameOption>
68 //! OptionInfo subclass corresponding to this option type.
69 typedef FileNameOptionInfo InfoType;
71 //! Initializes an option with the given name.
72 explicit FileNameOption(const char *name)
73 : MyBase(name), filetype_(eftUnknown), defaultBasename_(NULL),
74 bRead_(false), bWrite_(false), bLibrary_(false)
79 * Sets the type of the file this option accepts.
81 * This attribute must be provided.
83 MyClass &filetype(OptionFileType type)
84 { filetype_ = type; return me(); }
85 //! Tells that the file provided by this option is used for input only.
87 { bRead_ = true; bWrite_ = false; return me(); }
88 //! Tells that the file provided by this option is used for output only.
90 { bRead_ = false; bWrite_ = true; return me(); }
92 * Tells that the file provided by this option is used for input and
95 MyClass &inputOutputFile()
96 { bRead_ = bWrite_ = true; return me(); }
98 * Tells that the file will be looked up in library directories in
99 * addition to working directory.
102 * Currently, this flag only affects the help output. Callers must
103 * take care themselves to actually search the file in the library
104 * directories. It would be nicer to do this searching within the
105 * file name option implementation.
107 MyClass &libraryFile() { bLibrary_ = true; return me(); }
109 * Sets a default basename for the file option.
111 * Use this method instead of defaultValue() or defaultValueIfSet() to
112 * set a default value for a file name option. No extension needs to
113 * be provided; it is automatically added based on filetype().
114 * The behavior is also adjusted based on required(): if the option is
115 * required, the value given to defaultBasename() is treated as for
116 * defaultValue(), otherwise it is treated as for defaultValueIfSet().
118 MyClass &defaultBasename(const char *basename)
119 { defaultBasename_ = basename; return me(); }
122 // Use defaultBasename() instead.
123 using MyBase::defaultValue;
124 using MyBase::defaultValueIfSet;
126 //! Creates a FileNameOptionStorage object.
127 virtual AbstractOptionStoragePointer createStorage() const;
129 OptionFileType filetype_;
130 const char *defaultBasename_;
136 * Needed to initialize FileNameOptionStorage from this class without
137 * otherwise unnecessary accessors.
139 friend class FileNameOptionStorage;
143 * Wrapper class for accessing file name option information.
146 * \ingroup module_options
148 class FileNameOptionInfo : public OptionInfo
151 //! Creates an option info object for the given option.
152 explicit FileNameOptionInfo(FileNameOptionStorage *option);
154 //! Whether the option specifies an input file.
155 bool isInputFile() const;
156 //! Whether the option specifies an output file.
157 bool isOutputFile() const;
158 //! Whether the option specifies a file used for both input and output.
159 bool isInputOutputFile() const;
161 * Whether the option specifies a library file.
163 * \see FileNameOption::libraryFile()
165 bool isLibraryFile() const;
168 const FileNameOptionStorage &option() const;