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/signals.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::enable_shared_from_this<Region>
57 typedef std::vector<boost::shared_ptr<Source> > SourceList;
64 DefaultFadeOut = 0x10,
75 RightOfSplit = 0x8000,
77 DoNotSendPropertyChanges = 0x20000,
78 PositionLocked = 0x40000,
80 range_guarantoor = USHRT_MAX
83 enum PositionLockStyle {
88 static const Flag DefaultFlags = Flag (Opaque|DefaultFadeIn|DefaultFadeOut|FadeIn|FadeOut);
90 static PBD::Change FadeChanged;
91 static PBD::Change SyncOffsetChanged;
92 static PBD::Change MuteChanged;
93 static PBD::Change OpacityChanged;
94 static PBD::Change LockChanged;
95 static PBD::Change LayerChanged;
96 static PBD::Change HiddenChanged;
98 PBD::Signal1<void,PBD::Change> StateChanged;
99 static PBD::Signal1<void,boost::shared_ptr<ARDOUR::Region> > RegionPropertyChanged;
100 void unlock_property_changes () { _flags = Flag (_flags & ~DoNotSendPropertyChanges); }
101 void block_property_changes () { _flags = Flag (_flags | DoNotSendPropertyChanges); }
105 /** Note: changing the name of a Region does not constitute an edit */
106 bool set_name (const std::string& str);
108 const DataType& data_type() const { return _type; }
110 /** How the region parameters play together:
112 * |------------------------------------------------------------------- track
113 * |..........[------------------].....| region
114 * |-----------------------------| _position
115 * |------------------| _length
116 * |----------| _start
119 nframes_t position () const { return _position; }
120 nframes_t start () const { return _start; }
121 nframes_t length() const { return _length; }
122 layer_t layer () const { return _layer; }
124 sframes_t source_length(uint32_t n) const;
126 /* these two are valid ONLY during a StateChanged signal handler */
128 nframes_t last_position() const { return _last_position; }
129 nframes_t last_length() const { return _last_length; }
131 nframes64_t ancestral_start () const { return _ancestral_start; }
132 nframes64_t ancestral_length () const { return _ancestral_length; }
133 float stretch() const { return _stretch; }
134 float shift() const { return _shift; }
136 void set_ancestral_data (nframes64_t start, nframes64_t length, float stretch, float shift);
138 nframes_t sync_offset(int& dir) const;
139 nframes_t sync_position() const;
140 nframes_t sync_point () const;
142 nframes_t adjust_to_sync (nframes_t) const;
144 /* first_frame() is an alias; last_frame() just hides some math */
146 nframes_t first_frame() const { return _position; }
147 nframes_t last_frame() const { return _position + _length - 1; }
149 Flag flags() const { return _flags; }
150 bool hidden() const { return _flags & Hidden; }
151 bool muted() const { return _flags & Muted; }
152 bool opaque () const { return _flags & Opaque; }
153 bool locked() const { return _flags & Locked; }
154 bool position_locked() const { return _flags & PositionLocked; }
155 bool automatic() const { return _flags & Automatic; }
156 bool whole_file() const { return _flags & WholeFile ; }
157 bool captured() const { return !(_flags & (Region::Flag (Region::Import|Region::External))); }
158 bool can_move() const { return !(_flags & (Locked|PositionLocked)); }
160 PositionLockStyle positional_lock_style() const { return _positional_lock_style; }
161 void set_position_lock_style (PositionLockStyle ps);
162 void recompute_position_from_lock_style ();
167 bool covers (nframes_t frame) const {
168 return first_frame() <= frame && frame <= last_frame();
171 OverlapType coverage (nframes_t start, nframes_t end) const {
172 return ARDOUR::coverage (first_frame(), last_frame(), start, end);
175 bool equivalent (boost::shared_ptr<const Region>) const;
176 bool size_equivalent (boost::shared_ptr<const Region>) const;
177 bool overlap_equivalent (boost::shared_ptr<const Region>) const;
178 bool region_list_equivalent (boost::shared_ptr<const Region>) const;
179 bool source_equivalent (boost::shared_ptr<const Region>) const;
180 bool uses_source (boost::shared_ptr<const Source>) const;
182 /* EDITING OPERATIONS */
184 void set_length (nframes_t, void *src);
185 void set_start (nframes_t, void *src);
186 void set_position (nframes_t, void *src);
187 void set_position_on_top (nframes_t, void *src);
188 void special_set_position (nframes_t);
189 void update_position_after_tempo_map_change ();
190 void nudge_position (nframes64_t, void *src);
192 bool at_natural_position () const;
193 void move_to_natural_position (void *src);
195 void trim_start (nframes_t new_position, void *src);
196 void trim_front (nframes_t new_position, void *src);
197 void trim_end (nframes_t new_position, void *src);
198 void trim_to (nframes_t position, nframes_t length, void *src);
200 void set_layer (layer_t l); /* ONLY Playlist can call this */
203 void raise_to_top ();
204 void lower_to_bottom ();
206 void set_sync_position (nframes_t n);
207 void clear_sync_position ();
208 void set_hidden (bool yn);
209 void set_muted (bool yn);
210 void set_opaque (bool yn);
211 void set_locked (bool yn);
212 void set_position_locked (bool yn);
216 virtual uint32_t read_data_count() const { return _read_data_count; }
218 boost::shared_ptr<ARDOUR::Playlist> playlist() const { return _playlist.lock(); }
219 virtual void set_playlist (boost::weak_ptr<ARDOUR::Playlist>);
221 void source_deleted (boost::weak_ptr<Source>);
223 boost::shared_ptr<Source> source (uint32_t n=0) const { return _sources[ (n < _sources.size()) ? n : 0 ]; }
224 uint32_t n_channels() const { return _sources.size(); }
226 const SourceList& sources() const { return _sources; }
227 const SourceList& master_sources() const { return _master_sources; }
229 std::vector<std::string> master_source_names();
230 void set_master_sources (const SourceList&);
234 virtual boost::shared_ptr<Evoral::Control>
235 control(const Evoral::Parameter& id, bool create=false) = 0;
237 virtual boost::shared_ptr<const Evoral::Control>
238 control(const Evoral::Parameter& id) const = 0;
242 XMLNode& get_state ();
243 virtual XMLNode& state (bool);
244 virtual int set_state (const XMLNode&, int version);
245 virtual int set_live_state (const XMLNode&, int version, PBD::Change&, bool send);
247 virtual boost::shared_ptr<Region> get_parent() const;
249 uint64_t last_layer_op() const { return _last_layer_op; }
250 void set_last_layer_op (uint64_t when);
252 virtual bool is_dependent() const { return false; }
253 virtual bool depends_on (boost::shared_ptr<Region> /*other*/) const { return false; }
255 virtual int exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&) = 0;
257 virtual int get_transients (AnalysisFeatureList&, bool force_new = false) {
259 // no transients, but its OK
263 virtual int separate_by_channel (ARDOUR::Session&,
264 std::vector< boost::shared_ptr<Region> >&) const {
268 void invalidate_transients ();
270 void set_pending_explicit_relayer (bool p) {
271 _pending_explicit_relayer = p;
274 bool pending_explicit_relayer () const {
275 return _pending_explicit_relayer;
279 friend class RegionFactory;
281 Region (boost::shared_ptr<Source> src, nframes_t start, nframes_t length,
282 const std::string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
283 Region (const SourceList& srcs, nframes_t start, nframes_t length,
284 const std::string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
286 Region (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const std::string& name, layer_t = 0, Flag flags = DefaultFlags);
287 Region (boost::shared_ptr<const Region>, nframes_t length, const std::string& name, layer_t = 0, Flag flags = DefaultFlags);
288 Region (boost::shared_ptr<const Region>);
289 Region (boost::shared_ptr<Source> src, const XMLNode&);
290 Region (const SourceList& srcs, const XMLNode&);
292 Region (Session& s, nframes_t start, nframes_t length, const std::string& name, DataType, layer_t = 0, Flag flags = DefaultFlags);
295 void copy_stuff (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const std::string& name, layer_t, Flag flags);
297 XMLNode& get_short_state (); /* used only by Session */
299 void send_change (PBD::Change);
301 void trim_to_internal (nframes_t position, nframes_t length, void *src);
302 virtual void set_position_internal (nframes_t pos, bool allow_bbt_recompute);
304 bool copied() const { return _flags & Copied; }
305 void maybe_uncopy ();
308 bool verify_start (nframes_t);
309 bool verify_start_and_length (nframes_t, nframes_t&);
310 bool verify_start_mutable (nframes_t&_start);
311 bool verify_length (nframes_t);
313 virtual void recompute_at_start () = 0;
314 virtual void recompute_at_end () = 0;
317 PBD::EnumState<Flag> _flags;
318 PBD::State<nframes_t> _start;
319 PBD::State<nframes_t> _length;
320 nframes_t _last_length;
321 PBD::State<nframes_t> _position;
322 nframes_t _last_position;
323 PositionLockStyle _positional_lock_style;
324 PBD::State<nframes_t> _sync_position;
325 PBD::State<layer_t> _layer;
326 mutable RegionEditState _first_edit;
328 PBD::State<nframes64_t> _ancestral_start;
329 PBD::State<nframes64_t> _ancestral_length;
330 PBD::State<float> _stretch;
331 PBD::State<float> _shift;
333 AnalysisFeatureList _transients;
334 bool _valid_transients;
335 mutable uint32_t _read_data_count; ///< modified in read()
336 PBD::Change _pending_changed;
337 uint64_t _last_layer_op; ///< timestamp
340 /** Used when timefx are applied, so we can always use the original source */
341 SourceList _master_sources;
343 /** true if this region has had its layer explicitly set since the playlist last relayered */
344 bool _pending_explicit_relayer;
346 boost::weak_ptr<ARDOUR::Playlist> _playlist;
350 void register_states ();
351 void use_sources (SourceList const &);
354 } /* namespace ARDOUR */
356 #endif /* __ardour_region_h__ */