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>
30 #include "ardour/ardour.h"
31 #include "ardour/data_type.h"
32 #include "ardour/automatable.h"
33 #include "ardour/readable.h"
34 #include "ardour/session_object.h"
42 class ExportSpecification;
44 enum RegionEditState {
45 EditChangesNothing = 0,
51 : public SessionObject
52 , public boost::noncopyable
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 Change FadeChanged;
91 static Change SyncOffsetChanged;
92 static Change MuteChanged;
93 static Change OpacityChanged;
94 static Change LockChanged;
95 static Change LayerChanged;
96 static Change HiddenChanged;
98 sigc::signal<void,Change> StateChanged;
99 static sigc::signal<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 ();
165 void thaw (const std::string& why);
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;
181 /* EDITING OPERATIONS */
183 void set_length (nframes_t, void *src);
184 void set_start (nframes_t, void *src);
185 void set_position (nframes_t, void *src);
186 void set_position_on_top (nframes_t, void *src);
187 void special_set_position (nframes_t);
188 void update_position_after_tempo_map_change ();
189 void nudge_position (nframes64_t, void *src);
191 bool at_natural_position () const;
192 void move_to_natural_position (void *src);
194 void trim_start (nframes_t new_position, void *src);
195 void trim_front (nframes_t new_position, void *src);
196 void trim_end (nframes_t new_position, void *src);
197 void trim_to (nframes_t position, nframes_t length, void *src);
199 void set_layer (layer_t l); /* ONLY Playlist can call this */
202 void raise_to_top ();
203 void lower_to_bottom ();
205 void set_sync_position (nframes_t n);
206 void clear_sync_position ();
207 void set_hidden (bool yn);
208 void set_muted (bool yn);
209 void set_opaque (bool yn);
210 void set_locked (bool yn);
211 void set_position_locked (bool yn);
215 virtual uint32_t read_data_count() const { return _read_data_count; }
217 boost::shared_ptr<ARDOUR::Playlist> playlist() const { return _playlist.lock(); }
218 virtual void set_playlist (boost::weak_ptr<ARDOUR::Playlist>);
220 void source_deleted (boost::shared_ptr<Source>);
222 boost::shared_ptr<Source> source (uint32_t n=0) const { return _sources[ (n < _sources.size()) ? n : 0 ]; }
223 uint32_t n_channels() const { return _sources.size(); }
225 const SourceList& sources() const { return _sources; }
226 const SourceList& master_sources() const { return _master_sources; }
228 std::vector<std::string> master_source_names();
229 void set_master_sources (const SourceList&);
233 virtual boost::shared_ptr<Evoral::Control>
234 control(const Evoral::Parameter& id, bool create=false) = 0;
236 virtual boost::shared_ptr<const Evoral::Control>
237 control(const Evoral::Parameter& id) const = 0;
241 XMLNode& get_state ();
242 virtual XMLNode& state (bool);
243 virtual int set_state (const XMLNode&, int version);
244 virtual int set_live_state (const XMLNode&, int version, Change&, bool send);
246 virtual boost::shared_ptr<Region> get_parent() const;
248 uint64_t last_layer_op() const { return _last_layer_op; }
249 void set_last_layer_op (uint64_t when);
251 virtual bool is_dependent() const { return false; }
252 virtual bool depends_on (boost::shared_ptr<Region> /*other*/) const { return false; }
254 virtual int exportme (ARDOUR::Session&, ARDOUR::ExportSpecification&) = 0;
256 virtual int get_transients (AnalysisFeatureList&, bool force_new = false) {
258 // no transients, but its OK
262 virtual int separate_by_channel (ARDOUR::Session&,
263 std::vector< boost::shared_ptr<Region> >&) const {
267 void invalidate_transients ();
269 void set_pending_explicit_relayer (bool p) {
270 _pending_explicit_relayer = p;
273 bool pending_explicit_relayer () const {
274 return _pending_explicit_relayer;
278 friend class RegionFactory;
280 Region (boost::shared_ptr<Source> src, nframes_t start, nframes_t length,
281 const std::string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
282 Region (const SourceList& srcs, nframes_t start, nframes_t length,
283 const std::string& name, DataType type, layer_t = 0, Flag flags = DefaultFlags);
285 Region (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const std::string& name, layer_t = 0, Flag flags = DefaultFlags);
286 Region (boost::shared_ptr<const Region>, nframes_t length, const std::string& name, layer_t = 0, Flag flags = DefaultFlags);
287 Region (boost::shared_ptr<const Region>);
288 Region (boost::shared_ptr<Source> src, const XMLNode&);
289 Region (const SourceList& srcs, const XMLNode&);
291 Region (Session& s, nframes_t start, nframes_t length, const std::string& name, DataType, layer_t = 0, Flag flags = DefaultFlags);
294 void copy_stuff (boost::shared_ptr<const Region>, nframes_t start, nframes_t length, const std::string& name, layer_t, Flag flags);
296 XMLNode& get_short_state (); /* used only by Session */
298 void send_change (Change);
300 void trim_to_internal (nframes_t position, nframes_t length, void *src);
301 virtual void set_position_internal (nframes_t pos, bool allow_bbt_recompute);
303 bool copied() const { return _flags & Copied; }
304 void maybe_uncopy ();
307 bool verify_start (nframes_t);
308 bool verify_start_and_length (nframes_t, nframes_t&);
309 bool verify_start_mutable (nframes_t&_start);
310 bool verify_length (nframes_t);
312 virtual void recompute_at_start () = 0;
313 virtual void recompute_at_end () = 0;
319 nframes_t _last_length;
321 nframes_t _last_position;
322 PositionLockStyle _positional_lock_style;
323 nframes_t _sync_position;
325 mutable RegionEditState _first_edit;
327 nframes64_t _ancestral_start;
328 nframes64_t _ancestral_length;
332 AnalysisFeatureList _transients;
333 bool _valid_transients;
334 mutable uint32_t _read_data_count; ///< modified in read()
335 Change _pending_changed;
336 uint64_t _last_layer_op; ///< timestamp
339 /** Used when timefx are applied, so we can always use the original source */
340 SourceList _master_sources;
342 /** true if this region has had its layer explicitly set since the playlist last relayered */
343 bool _pending_explicit_relayer;
345 boost::weak_ptr<ARDOUR::Playlist> _playlist;
349 void use_sources (SourceList const &);
352 } /* namespace ARDOUR */
354 #endif /* __ardour_region_h__ */