2 Copyright (C) 2000-2001 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_region_h__
21 #define __ardour_region_h__
24 #include <boost/shared_ptr.hpp>
25 #include <boost/enable_shared_from_this.hpp>
29 #include <ardour/ardour.h>
30 #include <ardour/data_type.h>
31 #include <ardour/automatable.h>
32 #include <ardour/readable.h>
40 class ExportSpecification;
42 enum RegionEditState {
43 EditChangesNothing = 0,
49 : public SessionObject
50 , public boost::enable_shared_from_this<Region>
54 typedef std::vector<boost::shared_ptr<Source> > SourceList;
61 DefaultFadeOut = 0x10,
72 RightOfSplit = 0x8000,
74 DoNotSaveState = 0x20000,
75 PositionLocked = 0x40000,
77 range_guarantoor = USHRT_MAX
80 enum PositionLockStyle {
85 static const Flag DefaultFlags = Flag (Opaque|DefaultFadeIn|DefaultFadeOut|FadeIn|FadeOut);
87 static Change FadeChanged;
88 static Change SyncOffsetChanged;
89 static Change MuteChanged;
90 static Change OpacityChanged;
91 static Change LockChanged;
92 static Change LayerChanged;
93 static Change HiddenChanged;
95 sigc::signal<void,Change> StateChanged;
96 static sigc::signal<void,boost::shared_ptr<ARDOUR::Region> > RegionPropertyChanged;
100 /** Note: changing the name of a Region does not constitute an edit */
101 bool set_name (const std::string& str);
103 const DataType& data_type() const { return _type; }
106 * Thats how the region parameters play together:
108 * |------------------------------------------------------------------- track
109 * |..........[------------------].....| region
110 * |-----------------------------| _position
111 * |------------------| _length
112 * |----------| _start
115 nframes_t position () const { return _position; }
116 nframes_t start () const { return _start; }
117 nframes_t length() const { return _length; }
118 layer_t layer () const { return _layer; }
120 /* these two are valid ONLY during a StateChanged signal handler */
122 nframes_t last_position() const { return _last_position; }
123 nframes_t last_length() const { return _last_length; }
125 nframes64_t ancestral_start () const { return _ancestral_start; }
126 nframes64_t ancestral_length () const { return _ancestral_length; }
127 float stretch() const { return _stretch; }
128 float shift() const { return _shift; }
130 void set_ancestral_data (nframes64_t start, nframes64_t length, float stretch, float shift);
132 nframes_t sync_offset(int& dir) const;
133 nframes_t sync_position() const;
135 nframes_t adjust_to_sync (nframes_t);
137 /* first_frame() is an alias; last_frame() just hides some math */
139 nframes_t first_frame() const { return _position; }
140 nframes_t last_frame() const { return _position + _length - 1; }
142 Flag flags() const { return _flags; }
143 bool hidden() const { return _flags & Hidden; }
144 bool muted() const { return _flags & Muted; }
145 bool opaque () const { return _flags & Opaque; }
146 bool locked() const { return _flags & Locked; }
147 bool position_locked() const { return _flags & PositionLocked; }
148 bool automatic() const { return _flags & Automatic; }
149 bool whole_file() const { return _flags & WholeFile ; }
150 bool captured() const { return !(_flags & (Region::Flag (Region::Import|Region::External))); }
151 bool can_move() const { return !(_flags & (Locked|PositionLocked)); }
153 PositionLockStyle positional_lock_style() const { return _positional_lock_style; }
154 void set_position_lock_style (PositionLockStyle ps);
155 void recompute_position_from_lock_style ();
157 virtual bool should_save_state () const { return !(_flags & DoNotSaveState); };
160 void thaw (const string& why);
162 bool covers (nframes_t frame) const {
163 return first_frame() <= frame && frame <= last_frame();
166 OverlapType coverage (nframes_t start, nframes_t end) const {
167 return ARDOUR::coverage (first_frame(), last_frame(), start, end);
170 bool equivalent (boost::shared_ptr<const Region>) const;
171 bool size_equivalent (boost::shared_ptr<const Region>) const;
172 bool overlap_equivalent (boost::shared_ptr<const Region>) const;
173 bool region_list_equivalent (boost::shared_ptr<const Region>) const;
174 bool source_equivalent (boost::shared_ptr<const Region>) const;
176 /* EDITING OPERATIONS */
178 void set_length (nframes_t, void *src);
179 void set_start (nframes_t, void *src);
180 void set_position (nframes_t, void *src);
181 void set_position_on_top (nframes_t, void *src);
182 void special_set_position (nframes_t);
183 void update_position_after_tempo_map_change ();
184 void nudge_position (nframes64_t, void *src);
186 bool at_natural_position () const;
187 void move_to_natural_position (void *src);
189 void trim_start (nframes_t new_position, void *src);
190 void trim_front (nframes_t new_position, void *src);
191 void trim_end (nframes_t new_position, void *src);
192 void trim_to (nframes_t position, nframes_t length, void *src);
194 void set_layer (layer_t l); /* ONLY Playlist can call this */
197 void raise_to_top ();
198 void lower_to_bottom ();
200 void set_sync_position (nframes_t n);
201 void clear_sync_position ();
202 void set_hidden (bool yn);
203 void set_muted (bool yn);
204 void set_opaque (bool yn);
205 void set_locked (bool yn);
206 void set_position_locked (bool yn);
210 virtual uint32_t read_data_count() const { return _read_data_count; }
212 boost::shared_ptr<ARDOUR::Playlist> playlist() const { return _playlist.lock(); }
213 virtual void set_playlist (boost::weak_ptr<ARDOUR::Playlist>);
215 void source_deleted (boost::shared_ptr<Source>);
217 boost::shared_ptr<Source> source (uint32_t n=0) const { return _sources[ (n < _sources.size()) ? n : 0 ]; }
218 uint32_t n_channels() const { return _sources.size(); }
220 const SourceList& sources() const { return _sources; }
221 const SourceList& master_sources() const { return _master_sources; }
223 std::vector<string> master_source_names();
224 void set_master_sources (const SourceList&);
228 virtual boost::shared_ptr<Evoral::Control>
229 control(const Evoral::Parameter& id, bool create=false) = 0;
231 virtual boost::shared_ptr<const Evoral::Control>
232 control(const Evoral::Parameter& id) const = 0;
236 XMLNode& get_state ();
237 virtual XMLNode& state (bool);
238 virtual int set_state (const XMLNode&);
239 virtual int set_live_state (const XMLNode&, Change&, bool send);
241 virtual boost::shared_ptr<Region> get_parent() const;
243 uint64_t last_layer_op() const { return _last_layer_op; }
244 void set_last_layer_op (uint64_t when);
246 virtual bool is_dependent() const { return false; }
247 virtual bool depends_on (boost::shared_ptr<Region> other) const { return false; }
249 virtual int exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&) = 0;
251 virtual int get_transients (AnalysisFeatureList&, bool force_new = false) {
252 // no transients, but its OK
256 void invalidate_transients ();
259 friend class RegionFactory;
261 Region (boost::shared_ptr<Source> src, nframes_t start, nframes_t length,
262 const string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
263 Region (const SourceList& srcs, nframes_t start, nframes_t length,
264 const string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
266 Region (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const string& name, layer_t = 0, Flag flags = DefaultFlags);
267 Region (boost::shared_ptr<const Region>);
268 Region (boost::shared_ptr<Source> src, const XMLNode&);
269 Region (const SourceList& srcs, const XMLNode&);
271 Region (Session& s, nframes_t start, nframes_t length, const string& name, DataType, layer_t = 0, Flag flags = DefaultFlags);
274 XMLNode& get_short_state (); /* used only by Session */
276 void send_change (Change);
278 void trim_to_internal (nframes_t position, nframes_t length, void *src);
279 void set_position_internal (nframes_t pos, bool allow_bbt_recompute);
281 bool copied() const { return _flags & Copied; }
282 void maybe_uncopy ();
285 bool verify_start (nframes_t);
286 bool verify_start_and_length (nframes_t, nframes_t&);
287 bool verify_start_mutable (nframes_t&_start);
288 bool verify_length (nframes_t);
290 virtual void recompute_at_start () = 0;
291 virtual void recompute_at_end () = 0;
297 nframes_t _last_length;
299 nframes_t _last_position;
300 PositionLockStyle _positional_lock_style;
301 nframes_t _sync_position;
303 mutable RegionEditState _first_edit;
305 nframes64_t _ancestral_start;
306 nframes64_t _ancestral_length;
310 AnalysisFeatureList _transients;
311 bool _valid_transients;
312 mutable uint32_t _read_data_count; ///< modified in read()
313 Change _pending_changed;
314 uint64_t _last_layer_op; ///< timestamp
317 /** Used when timefx are applied, so we can always use the original source */
318 SourceList _master_sources;
320 boost::weak_ptr<ARDOUR::Playlist> _playlist;
323 } /* namespace ARDOUR */
325 #endif /* __ardour_region_h__ */