1 /*
2  * Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
3  * Copyright (C) 2009-2011 David Robillard <d@drobilla.net>
4  * Copyright (C) 2009-2015 Paul Davis <paul@linuxaudiosystems.com>
5  * Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 
22 #ifndef __ardour_filesource_h__
23 #define __ardour_filesource_h__
24 
25 #include <list>
26 #include <string>
27 #include <exception>
28 #include <time.h>
29 #include "ardour/source.h"
30 
31 namespace ARDOUR {
32 
33 class LIBARDOUR_API MissingSource : public std::exception
34 {
35   public:
MissingSource(const std::string & p,DataType t)36 	MissingSource (const std::string& p, DataType t) throw ()
37 		: path (p), type (t) {}
throw()38 	~MissingSource() throw() {}
39 
what()40 	virtual const char *what() const throw() { return "source file does not exist"; }
41 
42 	std::string path;
43 	DataType type;
44 };
45 
46 /** A source associated with a file on disk somewhere */
47 class LIBARDOUR_API FileSource : virtual public Source {
48 public:
49 	virtual ~FileSource ();
50 
path()51 	const std::string& path() const { return _path; }
52 
53 	virtual bool safe_file_extension (const std::string& path) const = 0;
54 
55 	int  move_to_trash (const std::string& trash_dir_name);
56 	void mark_take (const std::string& id);
57         void mark_immutable ();
58         void mark_immutable_except_write();
59 	void mark_nonremovable ();
60 
within_session()61 	bool                 within_session () const { return _within_session; }
channel()62 	uint16_t             channel()         const { return _channel; }
gain()63 	float                gain()            const { return _gain; }
64 
65 	virtual void set_gain (float g, bool temporarily = false) { _gain = g; }
66 
67 	int set_state (const XMLNode&, int version);
68 
69 	int set_source_name (const std::string& newname);
70 
71 	static bool find (Session&, DataType type, const std::string& path,
72 	                  bool must_exist, bool& is_new, uint16_t& chan,
73 	                  std::string& found_path);
74 
75 	static bool find_2X (Session&, DataType type, const std::string& path,
76 	                     bool must_exist, bool& is_new, uint16_t& chan,
77 	                     std::string& found_path);
78 
79 	void inc_use_count ();
80 	bool removable () const;
81         bool is_stub () const;
82 
origin()83 	const std::string& origin() const { return _origin; }
set_origin(std::string const & o)84 	void set_origin (std::string const& o) { _origin = o; }
85 
86 	virtual void set_path (const std::string&);
87 	void replace_file (const std::string&);
88 
89 	static PBD::Signal2<int,std::string,std::vector<std::string> > AmbiguousFileName;
90 
91 	void existence_check ();
92 	virtual void prevent_deletion ();
93 
94 	/** Rename the file on disk referenced by this source to \p newname */
95 	int rename (const std::string& name);
96 
97 	virtual void close () = 0;
98 
99   protected:
100 	FileSource (Session& session, DataType type,
101 	            const std::string& path,
102 	            const std::string& origin,
103 	            Source::Flag flags = Source::Flag(0));
104 
105 	FileSource (Session& session, const XMLNode& node, bool must_exist);
106 
107 	virtual int init (const std::string& idstr, bool must_exist);
108 
move_dependents_to_trash()109 	virtual int move_dependents_to_trash() { return 0; }
110 	void set_within_session_from_path (const std::string&);
111 
112 	std::string _path;
113 	bool        _file_is_new;
114 	uint16_t    _channel;
115 	bool        _within_session;
116 	std::string _origin;
117 	float       _gain;
118 };
119 
120 } // namespace ARDOUR
121 
122 #endif /* __ardour_filesource_h__ */
123 
124