2 Copyright (C) 2008 Paul Davis
5 This program 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.
10 This program 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.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_element_importer_h__
22 #define __ardour_element_importer_h__
27 #include "pbd/signals.h"
28 #include "ardour/types.h"
36 /// Virtual interface class for element importers
41 ElementImporter (XMLTree const & source, ARDOUR::Session & session);
42 virtual ~ElementImporter ();
44 /** Returns the element name
45 * @return the name of the element
47 virtual std::string get_name () const { return name; };
49 /** Gets a textual representation of the element
50 * @return a textual representation on this specific element
52 virtual std::string get_info () const = 0;
54 /** Gets import status, if applicable. */
55 virtual ImportStatus * get_import_status () { return 0; }
57 /** Prepares to move element
59 * @return whther or not the element could be prepared for moving
63 /** Cancels moving of element
64 * If the element has been set to be moved, this cancels the move.
68 /// Moves the element to the taget session
71 /// Check if element is broken. Cannot be moved if broken.
72 bool broken () { return _broken; }
74 /// Signal that requests for anew name
75 static PBD::Signal2<std::pair<bool, std::string>,std::string, std::string> Rename;
77 /// Signal for ok/cancel prompting
78 static PBD::Signal1<bool,std::string> Prompt;
82 /** Moves the element to the taget session
83 * In addition to actually adding the element to the session
84 * changing ids, renaming files etc. should be taken care of.
86 virtual void _move () = 0;
88 /** Should take care of all tasks that need to be done
89 * before moving the element. This includes prompting
90 * the user for more information if necessary.
92 * @return whether or not the element can be moved
94 virtual bool _prepare_move () = 0;
97 virtual void _cancel_move () = 0;
100 XMLTree const & source;
103 ARDOUR::Session & session;
105 /// Ture if the element has been prepared and queued for importing
106 bool queued () { return _queued; }
111 /// The sample rate of the session from which we are importing
112 nframes_t sample_rate;
114 /// Converts timecode time to a string
115 std::string timecode_to_string (Timecode::Time & time) const;
117 /// Converts samples so that times match the sessions sample rate
118 nframes_t rate_convert_samples (nframes_t samples) const;
120 /// Converts samples so that times match the sessions sample rate (for straight use in XML)
121 std::string rate_convert_samples (std::string const & samples) const;
123 /// Set element broken
124 void set_broken () { _broken = true; }
131 } // namespace ARDOUR