/[svn]/linuxsampler/trunk/src/common/Path.h
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Contents of /linuxsampler/trunk/src/common/Path.h

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Revision 2012 - (show annotations) (download) (as text)
Fri Oct 23 17:53:17 2009 UTC (14 years, 5 months ago) by iliev
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* Refactoring: moved the independent code from
  the Gigasampler format engine to base classes
* SFZ format engine: experimental code (not usable yet)
* SoundFont format engine: experimental code (not usable yet)
* Fixed crash which may occur when MIDI key + transpose is out of range

1 /***************************************************************************
2 * *
3 * Copyright (C) 2007 Christian Schoenebeck *
4 * *
5 * This library is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This library is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this library; if not, write to the Free Software *
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
18 * MA 02111-1307 USA *
19 ***************************************************************************/
20
21 #ifndef LS_PATH_H
22 #define LS_PATH_H
23
24 #include <vector>
25 #include <string>
26
27 namespace LinuxSampler {
28
29 /** @brief Portable Path Abstraction
30 *
31 * Correct path and file names are dependent to the underlying OS and FS.
32 * Especially the set of forbidden characters (and their encodings / escape
33 * sequences) in path and file names differ on the various systems. This
34 * class is meant as a portable wrapper to circumvent these problems by
35 * storing the file names in its raw, human readable (intended) form and
36 * provides OS specific methods like @c toPosix() for converting the path into
37 * the correct encoding, as expected by the respective system.
38 *
39 * This class is currently only used internally by the LSCP parser. A lot
40 * generalization work would have to be done to use this class as a overall
41 * replacement for all @c char* / @c std::string file name arguments in the
42 * sampler or even its C++ API. Probably we'll use something like
43 * @c boost::filesystem::path instead of this class in future.
44 */
45 class Path {
46 public:
47 Path();
48
49 /**
50 * Concatenate exactly one path node or filename to the end of this Path
51 * object. This can be used to build up a full qualified path, directory
52 * by directory.
53 *
54 * @param Name - name of the path node's name or filename in it's raw,
55 * human readable/expected form
56 */
57 void appendNode(std::string Name);
58
59 /**
60 * Sets the hardware drive of the path, for systems that use the concept
61 * of drives in absolute pathes (i.e. Windows).
62 */
63 void setDrive(const char& Drive);
64
65 /**
66 * Convert this Path into the correct encoding as expected by POSIX
67 * compliant system calls.
68 */
69 std::string toPosix() const;
70
71 /**
72 * Convert this Path into the correct encoding as expected
73 * by the instruments database implementation.
74 */
75 std::string toDbPath() const;
76
77 /**
78 * Convert this Path into the correct encoding as expected and needed
79 * for LSCP responses.
80 */
81 std::string toLscp() const;
82
83 /**
84 * Convert this Path into the correct encoding as expected by Windows
85 * operating systems.
86 */
87 std::string toWindows() const;
88
89 /**
90 * Concatenate two paths.
91 */
92 Path operator+(const Path& p);
93
94 /**
95 * Concatenate two paths.
96 */
97 Path operator+(const Path* p);
98
99 /**
100 * Create a Path object from a POSIX path / filename string.
101 */
102 static Path fromPosix(std::string path);
103
104 /**
105 * Create a Path object from a DB path.
106 */
107 static Path fromDbPath(std::string path);
108
109 /**
110 * Create a Path object from a Windows path / filename string.
111 */
112 static Path fromWindows(std::string path);
113
114 /**
115 * Returns the name of the file or directory represented by
116 * this path in abstract/raw form. This is the last name in
117 * the path's name sequence.
118 */
119 std::string getName();
120
121 /**
122 * Returns the name of the file or directory
123 * represented by the specified path in abstract/raw form.
124 * This is the last name in the path's name sequence.
125 */
126 static std::string getName(std::string path);
127
128 /**
129 * Returns the path with the last name
130 * of the path's name sequence stripped off.
131 */
132 std::string stripLastName();
133
134 /**
135 * Returns the path with the last name
136 * of the path's name sequence stripped off.
137 */
138 static std::string stripLastName(std::string path);
139
140 /**
141 * Returns the last name in the path's name sequence
142 * of this path with the file extension stripped off.
143 */
144 std::string getBaseName();
145
146 /**
147 * Returns the last name in the path's name sequence
148 * of the specified path with the file extension stripped off.
149 */
150 static std::string getBaseName(std::string path);
151
152 private:
153 std::vector<std::string> elements; ///< stores the path names raw = unencoded, each element is one node of the path
154 char drive;
155 };
156
157 } // namespace LinuxSampler
158
159 #endif // LS_PATH_H

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