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"
30 #include "ardour/ardour.h"
31 #include "ardour/data_type.h"
32 #include "ardour/automatable.h"
33 #include "ardour/movable.h"
34 #include "ardour/readable.h"
35 #include "ardour/session_object.h"
36 #include "ardour/trimmable.h"
42 namespace Properties {
43 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> muted;
44 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> opaque;
45 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> locked;
46 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> video_locked;
47 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> automatic;
48 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> whole_file;
49 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> import;
50 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> external;
51 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> sync_marked;
52 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> left_of_split;
53 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> right_of_split;
54 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> hidden;
55 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> position_locked;
56 LIBARDOUR_API extern PBD::PropertyDescriptor<bool> valid_transients;
57 LIBARDOUR_API extern PBD::PropertyDescriptor<framepos_t> start;
58 LIBARDOUR_API extern PBD::PropertyDescriptor<framecnt_t> length;
59 LIBARDOUR_API extern PBD::PropertyDescriptor<framepos_t> position;
60 LIBARDOUR_API extern PBD::PropertyDescriptor<framecnt_t> sync_position;
61 LIBARDOUR_API extern PBD::PropertyDescriptor<layer_t> layer;
62 LIBARDOUR_API extern PBD::PropertyDescriptor<framepos_t> ancestral_start;
63 LIBARDOUR_API extern PBD::PropertyDescriptor<framecnt_t> ancestral_length;
64 LIBARDOUR_API extern PBD::PropertyDescriptor<float> stretch;
65 LIBARDOUR_API extern PBD::PropertyDescriptor<float> shift;
66 LIBARDOUR_API extern PBD::PropertyDescriptor<PositionLockStyle> position_lock_style;
67 LIBARDOUR_API extern PBD::PropertyDescriptor<uint64_t> layering_index;
72 class ExportSpecification;
75 enum LIBARDOUR_API RegionEditState {
76 EditChangesNothing = 0,
82 class LIBARDOUR_API Region
83 : public SessionObject
84 , public boost::enable_shared_from_this<Region>
90 typedef std::vector<boost::shared_ptr<Source> > SourceList;
92 static void make_property_quarks ();
94 static PBD::Signal2<void,boost::shared_ptr<ARDOUR::Region>, const PBD::PropertyChange&> RegionPropertyChanged;
98 /** Note: changing the name of a Region does not constitute an edit */
99 bool set_name (const std::string& str);
101 const DataType& data_type () const { return _type; }
103 /** How the region parameters play together:
105 * POSITION: first frame of the region along the timeline
106 * START: first frame of the region within its source(s)
107 * LENGTH: number of frames the region represents
109 framepos_t position () const { return _position; }
110 framepos_t start () const { return _start; }
111 framecnt_t length () const { return _length; }
112 layer_t layer () const { return _layer; }
114 framecnt_t source_length(uint32_t n) const;
115 uint32_t max_source_level () const;
117 /* these two are valid ONLY during a StateChanged signal handler */
119 framepos_t last_position () const { return _last_position; }
120 framecnt_t last_length () const { return _last_length; }
122 framepos_t ancestral_start () const { return _ancestral_start; }
123 framecnt_t ancestral_length () const { return _ancestral_length; }
125 float stretch () const { return _stretch; }
126 float shift () const { return _shift; }
128 void set_ancestral_data (framepos_t start, framecnt_t length, float stretch, float shift);
130 frameoffset_t sync_offset (int& dir) const;
131 framepos_t sync_position () const;
133 framepos_t adjust_to_sync (framepos_t) const;
135 /* first_frame() is an alias; last_frame() just hides some math */
137 framepos_t first_frame () const { return _position; }
138 framepos_t last_frame () const { return _position + _length - 1; }
140 /** Return the earliest possible value of _position given the
141 * value of _start within the region's sources
143 framepos_t earliest_possible_position () const;
144 /** Return the last possible value of _last_frame given the
145 * value of _startin the regions's sources
147 framepos_t latest_possible_frame () const;
149 Evoral::Range<framepos_t> last_range () const {
150 return Evoral::Range<framepos_t> (_last_position, _last_position + _last_length - 1);
153 Evoral::Range<framepos_t> range () const {
154 return Evoral::Range<framepos_t> (first_frame(), last_frame());
157 bool hidden () const { return _hidden; }
158 bool muted () const { return _muted; }
159 bool opaque () const { return _opaque; }
160 bool locked () const { return _locked; }
161 bool position_locked () const { return _position_locked; }
162 bool video_locked () const { return _video_locked; }
163 bool automatic () const { return _automatic; }
164 bool whole_file () const { return _whole_file; }
165 bool captured () const { return !(_import || _external); }
166 bool can_move () const { return !_position_locked && !_locked; }
167 bool sync_marked () const { return _sync_marked; }
168 bool external () const { return _external; }
169 bool import () const { return _import; }
171 Trimmable::CanTrim can_trim () const;
173 PositionLockStyle position_lock_style () const { return _position_lock_style; }
175 void set_position_lock_style (PositionLockStyle ps);
176 void recompute_position_from_lock_style ();
178 void suspend_property_changes ();
180 bool covers (framepos_t frame) const {
181 return first_frame() <= frame && frame <= last_frame();
184 /** @return coverage of this region with the given range;
185 * OverlapInternal: the range is internal to this region.
186 * OverlapStart: the range overlaps the start of this region.
187 * OverlapEnd: the range overlaps the end of this region.
188 * OverlapExternal: the range overlaps all of this region.
190 Evoral::OverlapType coverage (framepos_t start, framepos_t end) const {
191 return Evoral::coverage (first_frame(), last_frame(), start, end);
194 bool equivalent (boost::shared_ptr<const Region>) const;
195 bool size_equivalent (boost::shared_ptr<const Region>) const;
196 bool overlap_equivalent (boost::shared_ptr<const Region>) const;
197 bool region_list_equivalent (boost::shared_ptr<const Region>) const;
198 bool source_equivalent (boost::shared_ptr<const Region>) const;
199 bool any_source_equivalent (boost::shared_ptr<const Region>) const;
200 bool uses_source (boost::shared_ptr<const Source>) const;
202 std::string source_string () const;
205 /* EDITING OPERATIONS */
207 void set_length (framecnt_t);
208 void set_start (framepos_t);
209 void set_position (framepos_t);
210 void set_initial_position (framepos_t);
211 void special_set_position (framepos_t);
212 virtual void update_after_tempo_map_change ();
213 void nudge_position (frameoffset_t);
215 bool at_natural_position () const;
216 void move_to_natural_position ();
218 void move_start (frameoffset_t distance);
219 void trim_front (framepos_t new_position);
220 void trim_end (framepos_t new_position);
221 void trim_to (framepos_t position, framecnt_t length);
223 virtual void fade_range (framepos_t, framepos_t) {}
225 void cut_front (framepos_t new_position);
226 void cut_end (framepos_t new_position);
228 void set_layer (layer_t l); /* ONLY Playlist can call this */
231 void raise_to_top ();
232 void lower_to_bottom ();
234 void set_sync_position (framepos_t n);
235 void clear_sync_position ();
236 void set_hidden (bool yn);
237 void set_muted (bool yn);
238 void set_whole_file (bool yn);
239 void set_automatic (bool yn);
240 void set_opaque (bool yn);
241 void set_locked (bool yn);
242 void set_video_locked (bool yn);
243 void set_position_locked (bool yn);
245 int apply (Filter &, Progress* progress = 0);
247 boost::shared_ptr<ARDOUR::Playlist> playlist () const { return _playlist.lock(); }
248 virtual void set_playlist (boost::weak_ptr<ARDOUR::Playlist>);
250 void source_deleted (boost::weak_ptr<Source>);
252 bool is_compound () const;
254 boost::shared_ptr<Source> source (uint32_t n=0) const { return _sources[ (n < _sources.size()) ? n : 0 ]; }
255 uint32_t n_channels() const { return _sources.size(); }
257 const SourceList& sources () const { return _sources; }
258 const SourceList& master_sources () const { return _master_sources; }
260 std::vector<std::string> master_source_names();
261 void set_master_sources (const SourceList&);
265 virtual boost::shared_ptr<Evoral::Control>
266 control (const Evoral::Parameter& id, bool create=false) = 0;
268 virtual boost::shared_ptr<const Evoral::Control>
269 control (const Evoral::Parameter& id) const = 0;
273 XMLNode& get_state ();
274 virtual XMLNode& state ();
275 virtual int set_state (const XMLNode&, int version);
277 virtual boost::shared_ptr<Region> get_parent() const;
279 uint64_t layering_index () const { return _layering_index; }
280 void set_layering_index (uint64_t when) { _layering_index = when; }
282 virtual bool is_dependent() const { return false; }
283 virtual bool depends_on (boost::shared_ptr<Region> /*other*/) const { return false; }
285 virtual void add_transient (framepos_t) {
286 // no transients, but its OK
289 virtual void clear_transients () {
290 // no transients, but its OK
293 virtual void update_transient (framepos_t /* old_position */, framepos_t /* new_position */) {
294 // no transients, but its OK
297 virtual void remove_transient (framepos_t /* where */) {
298 // no transients, but its OK
301 virtual void set_onsets (AnalysisFeatureList&) {
302 // no transients, but its OK
305 /** merges _onsets and _user_transients into given list
306 * and removed exact duplicates.
308 void transients (AnalysisFeatureList&);
310 /** merges _onsets OR _transients with _user_transients into given list
311 * if _onsets and _transients are unset, run analysis.
312 * list is not thinned, duplicates remain in place.
314 * intended for: Playlist::find_next_transient ()
316 virtual void get_transients (AnalysisFeatureList&) {
317 // no transients, but its OK
320 bool has_transients () const;
322 virtual int separate_by_channel (ARDOUR::Session&,
323 std::vector< boost::shared_ptr<Region> >&) const {
327 void maybe_invalidate_transients ();
329 void drop_sources ();
332 friend class RegionFactory;
334 /** Construct a region from multiple sources*/
335 Region (const SourceList& srcs);
337 /** Construct a region from another region */
338 Region (boost::shared_ptr<const Region>);
340 /** Construct a region from another region, at an offset within that region */
341 Region (boost::shared_ptr<const Region>, frameoffset_t start_offset);
343 /** Construct a region as a copy of another region, but with different sources */
344 Region (boost::shared_ptr<const Region>, const SourceList&);
346 /** Constructor for derived types only */
347 Region (Session& s, framepos_t start, framecnt_t length, const std::string& name, DataType);
349 virtual bool can_trim_start_before_source_start () const {
355 void send_change (const PBD::PropertyChange&);
356 virtual int _set_state (const XMLNode&, int version, PBD::PropertyChange& what_changed, bool send_signal);
357 void post_set (const PBD::PropertyChange&);
358 virtual void set_position_internal (framepos_t pos, bool allow_bbt_recompute);
359 virtual void set_length_internal (framecnt_t);
360 virtual void set_start_internal (framecnt_t);
364 PBD::Property<bool> _sync_marked;
365 PBD::Property<bool> _left_of_split;
366 PBD::Property<bool> _right_of_split;
367 PBD::Property<bool> _valid_transients;
368 PBD::Property<framepos_t> _start;
369 PBD::Property<framecnt_t> _length;
370 PBD::Property<framepos_t> _position;
371 /** Sync position relative to the start of our file */
372 PBD::Property<framepos_t> _sync_position;
375 /** Used when timefx are applied, so we can always use the original source */
376 SourceList _master_sources;
378 boost::weak_ptr<ARDOUR::Playlist> _playlist;
380 void merge_features (AnalysisFeatureList&, const AnalysisFeatureList&, const frameoffset_t) const;
382 AnalysisFeatureList _onsets; // used by the Ferret (Aubio OnsetDetector)
384 // _transient_user_start is covered by _valid_transients
385 AnalysisFeatureList _user_transients; // user added
386 framepos_t _transient_user_start; // region's _start relative to user_transients
388 // these are used by Playlist::find_next_transient() in absence of onsets
389 AnalysisFeatureList _transients; // Source Analysis (QM Transient), user read-only
390 framepos_t _transient_analysis_start;
391 framepos_t _transient_analysis_end;
394 void mid_thaw (const PBD::PropertyChange&);
396 void trim_to_internal (framepos_t position, framecnt_t length);
397 void modify_front (framepos_t new_position, bool reset_fade);
398 void modify_end (framepos_t new_position, bool reset_fade);
400 void maybe_uncopy ();
403 bool verify_start (framepos_t);
404 bool verify_start_and_length (framepos_t, framecnt_t&);
405 bool verify_start_mutable (framepos_t&_start);
406 bool verify_length (framecnt_t&);
408 virtual void recompute_at_start () = 0;
409 virtual void recompute_at_end () = 0;
411 PBD::Property<bool> _muted;
412 PBD::Property<bool> _opaque;
413 PBD::Property<bool> _locked;
414 PBD::Property<bool> _video_locked;
415 PBD::Property<bool> _automatic;
416 PBD::Property<bool> _whole_file;
417 PBD::Property<bool> _import;
418 PBD::Property<bool> _external;
419 PBD::Property<bool> _hidden;
420 PBD::Property<bool> _position_locked;
421 PBD::Property<framepos_t> _ancestral_start;
422 PBD::Property<framecnt_t> _ancestral_length;
423 PBD::Property<float> _stretch;
424 PBD::Property<float> _shift;
425 PBD::EnumProperty<PositionLockStyle> _position_lock_style;
426 PBD::Property<uint64_t> _layering_index;
428 framecnt_t _last_length;
429 framepos_t _last_position;
430 mutable RegionEditState _first_edit;
434 void register_properties ();
436 void use_sources (SourceList const &);
439 } /* namespace ARDOUR */
441 #endif /* __ardour_region_h__ */