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>
26 #include <boost/utility.hpp>
29 #include "pbd/scoped_connections.h"
31 #include "ardour/ardour.h"
32 #include "ardour/data_type.h"
33 #include "ardour/automatable.h"
34 #include "ardour/readable.h"
35 #include "ardour/session_object.h"
43 class ExportSpecification;
45 enum RegionEditState {
46 EditChangesNothing = 0,
52 : public SessionObject
53 , public boost::noncopyable
54 , public boost::enable_shared_from_this<Region>
58 typedef std::vector<boost::shared_ptr<Source> > SourceList;
65 DefaultFadeOut = 0x10,
76 RightOfSplit = 0x8000,
78 DoNotSendPropertyChanges = 0x20000,
79 PositionLocked = 0x40000,
81 range_guarantoor = USHRT_MAX
84 enum PositionLockStyle {
89 static const Flag DefaultFlags = Flag (Opaque|DefaultFadeIn|DefaultFadeOut|FadeIn|FadeOut);
91 static Change FadeChanged;
92 static Change SyncOffsetChanged;
93 static Change MuteChanged;
94 static Change OpacityChanged;
95 static Change LockChanged;
96 static Change LayerChanged;
97 static Change HiddenChanged;
99 boost::signals2::signal<void(Change)> StateChanged;
100 static boost::signals2::signal<void(boost::shared_ptr<ARDOUR::Region>)> RegionPropertyChanged;
101 void unlock_property_changes () { _flags = Flag (_flags & ~DoNotSendPropertyChanges); }
102 void block_property_changes () { _flags = Flag (_flags | DoNotSendPropertyChanges); }
106 /** Note: changing the name of a Region does not constitute an edit */
107 bool set_name (const std::string& str);
109 const DataType& data_type() const { return _type; }
111 /** How the region parameters play together:
113 * |------------------------------------------------------------------- track
114 * |..........[------------------].....| region
115 * |-----------------------------| _position
116 * |------------------| _length
117 * |----------| _start
120 nframes_t position () const { return _position; }
121 nframes_t start () const { return _start; }
122 nframes_t length() const { return _length; }
123 layer_t layer () const { return _layer; }
125 sframes_t source_length(uint32_t n) const;
127 /* these two are valid ONLY during a StateChanged signal handler */
129 nframes_t last_position() const { return _last_position; }
130 nframes_t last_length() const { return _last_length; }
132 nframes64_t ancestral_start () const { return _ancestral_start; }
133 nframes64_t ancestral_length () const { return _ancestral_length; }
134 float stretch() const { return _stretch; }
135 float shift() const { return _shift; }
137 void set_ancestral_data (nframes64_t start, nframes64_t length, float stretch, float shift);
139 nframes_t sync_offset(int& dir) const;
140 nframes_t sync_position() const;
141 nframes_t sync_point () const;
143 nframes_t adjust_to_sync (nframes_t) const;
145 /* first_frame() is an alias; last_frame() just hides some math */
147 nframes_t first_frame() const { return _position; }
148 nframes_t last_frame() const { return _position + _length - 1; }
150 Flag flags() const { return _flags; }
151 bool hidden() const { return _flags & Hidden; }
152 bool muted() const { return _flags & Muted; }
153 bool opaque () const { return _flags & Opaque; }
154 bool locked() const { return _flags & Locked; }
155 bool position_locked() const { return _flags & PositionLocked; }
156 bool automatic() const { return _flags & Automatic; }
157 bool whole_file() const { return _flags & WholeFile ; }
158 bool captured() const { return !(_flags & (Region::Flag (Region::Import|Region::External))); }
159 bool can_move() const { return !(_flags & (Locked|PositionLocked)); }
161 PositionLockStyle positional_lock_style() const { return _positional_lock_style; }
162 void set_position_lock_style (PositionLockStyle ps);
163 void recompute_position_from_lock_style ();
166 void thaw (const std::string& why);
168 bool covers (nframes_t frame) const {
169 return first_frame() <= frame && frame <= last_frame();
172 OverlapType coverage (nframes_t start, nframes_t end) const {
173 return ARDOUR::coverage (first_frame(), last_frame(), start, end);
176 bool equivalent (boost::shared_ptr<const Region>) const;
177 bool size_equivalent (boost::shared_ptr<const Region>) const;
178 bool overlap_equivalent (boost::shared_ptr<const Region>) const;
179 bool region_list_equivalent (boost::shared_ptr<const Region>) const;
180 bool source_equivalent (boost::shared_ptr<const Region>) const;
181 bool uses_source (boost::shared_ptr<const Source>) const;
183 /* EDITING OPERATIONS */
185 void set_length (nframes_t, void *src);
186 void set_start (nframes_t, void *src);
187 void set_position (nframes_t, void *src);
188 void set_position_on_top (nframes_t, void *src);
189 void special_set_position (nframes_t);
190 void update_position_after_tempo_map_change ();
191 void nudge_position (nframes64_t, void *src);
193 bool at_natural_position () const;
194 void move_to_natural_position (void *src);
196 void trim_start (nframes_t new_position, void *src);
197 void trim_front (nframes_t new_position, void *src);
198 void trim_end (nframes_t new_position, void *src);
199 void trim_to (nframes_t position, nframes_t length, void *src);
201 void set_layer (layer_t l); /* ONLY Playlist can call this */
204 void raise_to_top ();
205 void lower_to_bottom ();
207 void set_sync_position (nframes_t n);
208 void clear_sync_position ();
209 void set_hidden (bool yn);
210 void set_muted (bool yn);
211 void set_opaque (bool yn);
212 void set_locked (bool yn);
213 void set_position_locked (bool yn);
217 virtual uint32_t read_data_count() const { return _read_data_count; }
219 boost::shared_ptr<ARDOUR::Playlist> playlist() const { return _playlist.lock(); }
220 virtual void set_playlist (boost::weak_ptr<ARDOUR::Playlist>);
222 void source_deleted (boost::weak_ptr<Source>);
224 boost::shared_ptr<Source> source (uint32_t n=0) const { return _sources[ (n < _sources.size()) ? n : 0 ]; }
225 uint32_t n_channels() const { return _sources.size(); }
227 const SourceList& sources() const { return _sources; }
228 const SourceList& master_sources() const { return _master_sources; }
230 std::vector<std::string> master_source_names();
231 void set_master_sources (const SourceList&);
235 virtual boost::shared_ptr<Evoral::Control>
236 control(const Evoral::Parameter& id, bool create=false) = 0;
238 virtual boost::shared_ptr<const Evoral::Control>
239 control(const Evoral::Parameter& id) const = 0;
243 XMLNode& get_state ();
244 virtual XMLNode& state (bool);
245 virtual int set_state (const XMLNode&, int version);
246 virtual int set_live_state (const XMLNode&, int version, Change&, bool send);
248 virtual boost::shared_ptr<Region> get_parent() const;
250 uint64_t last_layer_op() const { return _last_layer_op; }
251 void set_last_layer_op (uint64_t when);
253 virtual bool is_dependent() const { return false; }
254 virtual bool depends_on (boost::shared_ptr<Region> /*other*/) const { return false; }
256 virtual int exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&) = 0;
258 virtual int get_transients (AnalysisFeatureList&, bool force_new = false) {
260 // no transients, but its OK
264 virtual int separate_by_channel (ARDOUR::Session&,
265 std::vector< boost::shared_ptr<Region> >&) const {
269 void invalidate_transients ();
271 void set_pending_explicit_relayer (bool p) {
272 _pending_explicit_relayer = p;
275 bool pending_explicit_relayer () const {
276 return _pending_explicit_relayer;
280 friend class RegionFactory;
282 Region (boost::shared_ptr<Source> src, nframes_t start, nframes_t length,
283 const std::string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
284 Region (const SourceList& srcs, nframes_t start, nframes_t length,
285 const std::string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
287 Region (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const std::string& name, layer_t = 0, Flag flags = DefaultFlags);
288 Region (boost::shared_ptr<const Region>, nframes_t length, const std::string& name, layer_t = 0, Flag flags = DefaultFlags);
289 Region (boost::shared_ptr<const Region>);
290 Region (boost::shared_ptr<Source> src, const XMLNode&);
291 Region (const SourceList& srcs, const XMLNode&);
293 Region (Session& s, nframes_t start, nframes_t length, const std::string& name, DataType, layer_t = 0, Flag flags = DefaultFlags);
296 void copy_stuff (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const std::string& name, layer_t, Flag flags);
298 XMLNode& get_short_state (); /* used only by Session */
300 void send_change (Change);
302 void trim_to_internal (nframes_t position, nframes_t length, void *src);
303 virtual void set_position_internal (nframes_t pos, bool allow_bbt_recompute);
305 bool copied() const { return _flags & Copied; }
306 void maybe_uncopy ();
309 bool verify_start (nframes_t);
310 bool verify_start_and_length (nframes_t, nframes_t&);
311 bool verify_start_mutable (nframes_t&_start);
312 bool verify_length (nframes_t);
314 virtual void recompute_at_start () = 0;
315 virtual void recompute_at_end () = 0;
321 nframes_t _last_length;
323 nframes_t _last_position;
324 PositionLockStyle _positional_lock_style;
325 nframes_t _sync_position;
327 mutable RegionEditState _first_edit;
329 nframes64_t _ancestral_start;
330 nframes64_t _ancestral_length;
334 AnalysisFeatureList _transients;
335 bool _valid_transients;
336 mutable uint32_t _read_data_count; ///< modified in read()
337 Change _pending_changed;
338 uint64_t _last_layer_op; ///< timestamp
341 /** Used when timefx are applied, so we can always use the original source */
342 SourceList _master_sources;
344 /** true if this region has had its layer explicitly set since the playlist last relayered */
345 bool _pending_explicit_relayer;
347 boost::weak_ptr<ARDOUR::Playlist> _playlist;
351 void use_sources (SourceList const &);
354 } /* namespace ARDOUR */
356 #endif /* __ardour_region_h__ */