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/movable.h"
35 #include "ardour/readable.h"
36 #include "ardour/session_object.h"
37 #include "ardour/trimmable.h"
44 namespace Properties {
45 extern PBD::PropertyDescriptor<bool> muted;
46 extern PBD::PropertyDescriptor<bool> opaque;
47 extern PBD::PropertyDescriptor<bool> locked;
48 extern PBD::PropertyDescriptor<bool> video_locked;
49 extern PBD::PropertyDescriptor<bool> automatic;
50 extern PBD::PropertyDescriptor<bool> whole_file;
51 extern PBD::PropertyDescriptor<bool> import;
52 extern PBD::PropertyDescriptor<bool> external;
53 extern PBD::PropertyDescriptor<bool> sync_marked;
54 extern PBD::PropertyDescriptor<bool> left_of_split;
55 extern PBD::PropertyDescriptor<bool> right_of_split;
56 extern PBD::PropertyDescriptor<bool> hidden;
57 extern PBD::PropertyDescriptor<bool> position_locked;
58 extern PBD::PropertyDescriptor<bool> valid_transients;
59 extern PBD::PropertyDescriptor<framepos_t> start;
60 extern PBD::PropertyDescriptor<framecnt_t> length;
61 extern PBD::PropertyDescriptor<framepos_t> position;
62 extern PBD::PropertyDescriptor<framecnt_t> sync_position;
63 extern PBD::PropertyDescriptor<layer_t> layer;
64 extern PBD::PropertyDescriptor<framepos_t> ancestral_start;
65 extern PBD::PropertyDescriptor<framecnt_t> ancestral_length;
66 extern PBD::PropertyDescriptor<float> stretch;
67 extern PBD::PropertyDescriptor<float> shift;
68 extern PBD::PropertyDescriptor<PositionLockStyle> position_lock_style;
69 extern PBD::PropertyDescriptor<uint64_t> layering_index;
74 class ExportSpecification;
77 enum RegionEditState {
78 EditChangesNothing = 0,
85 : public SessionObject
86 , public boost::enable_shared_from_this<Region>
92 typedef std::vector<boost::shared_ptr<Source> > SourceList;
94 static void make_property_quarks ();
96 static PBD::Signal2<void,boost::shared_ptr<ARDOUR::Region>, const PBD::PropertyChange&> 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; }
105 AnalysisFeatureList transients () { return _transients; };
107 /** How the region parameters play together:
109 * POSITION: first frame of the region along the timeline
110 * START: first frame of the region within its source(s)
111 * LENGTH: number of frames the region represents
113 framepos_t position () const { return _position; }
114 framepos_t start () const { return _start; }
115 framecnt_t length () const { return _length; }
116 layer_t layer () const { return _layer; }
118 framecnt_t source_length(uint32_t n) const;
119 uint32_t max_source_level () const;
121 /* these two are valid ONLY during a StateChanged signal handler */
123 framepos_t last_position () const { return _last_position; }
124 framecnt_t last_length () const { return _last_length; }
126 framepos_t ancestral_start () const { return _ancestral_start; }
127 framecnt_t ancestral_length () const { return _ancestral_length; }
129 float stretch () const { return _stretch; }
130 float shift () const { return _shift; }
132 void set_ancestral_data (framepos_t start, framecnt_t length, float stretch, float shift);
134 frameoffset_t sync_offset (int& dir) const;
135 framepos_t sync_position () const;
136 framepos_t sync_point () const;
138 framepos_t adjust_to_sync (framepos_t) const;
140 /* first_frame() is an alias; last_frame() just hides some math */
142 framepos_t first_frame () const { return _position; }
143 framepos_t last_frame () const { return _position + _length - 1; }
145 /** Return the earliest possible value of _position given the
146 * value of _start within the region's sources
148 framepos_t earliest_possible_position () const;
149 /** Return the last possible value of _last_frame given the
150 * value of _startin the regions's sources
152 framepos_t latest_possible_frame () const;
154 Evoral::Range<framepos_t> last_range () const {
155 return Evoral::Range<framepos_t> (_last_position, _last_position + _last_length - 1);
158 Evoral::Range<framepos_t> range () const {
159 return Evoral::Range<framepos_t> (first_frame(), last_frame());
162 bool hidden () const { return _hidden; }
163 bool muted () const { return _muted; }
164 bool opaque () const { return _opaque; }
165 bool locked () const { return _locked; }
166 bool position_locked () const { return _position_locked; }
167 bool video_locked () const { return _video_locked; }
168 bool valid_transients () const { return _valid_transients; }
169 bool automatic () const { return _automatic; }
170 bool whole_file () const { return _whole_file; }
171 bool captured () const { return !(_import || _external); }
172 bool can_move () const { return !_position_locked && !_locked; }
173 bool sync_marked () const { return _sync_marked; }
174 bool external () const { return _external; }
175 bool import () const { return _import; }
177 Trimmable::CanTrim can_trim () const;
179 PositionLockStyle position_lock_style () const { return _position_lock_style; }
181 void set_position_lock_style (PositionLockStyle ps);
182 void recompute_position_from_lock_style ();
184 void suspend_property_changes ();
186 bool covers (framepos_t frame) const {
187 return first_frame() <= frame && frame <= last_frame();
190 /** @return coverage of this region with the given range;
191 * OverlapInternal: the range is internal to this region.
192 * OverlapStart: the range overlaps the start of this region.
193 * OverlapEnd: the range overlaps the end of this region.
194 * OverlapExternal: the range overlaps all of this region.
196 Evoral::OverlapType coverage (framepos_t start, framepos_t end) const {
197 return Evoral::coverage (first_frame(), last_frame(), start, end);
200 bool equivalent (boost::shared_ptr<const Region>) const;
201 bool size_equivalent (boost::shared_ptr<const Region>) const;
202 bool overlap_equivalent (boost::shared_ptr<const Region>) const;
203 bool region_list_equivalent (boost::shared_ptr<const Region>) const;
204 bool source_equivalent (boost::shared_ptr<const Region>) const;
205 bool any_source_equivalent (boost::shared_ptr<const Region>) const;
206 bool uses_source (boost::shared_ptr<const Source>) const;
208 std::string source_string () const;
211 /* EDITING OPERATIONS */
213 void set_length (framecnt_t);
214 void set_start (framepos_t);
215 void set_position (framepos_t);
216 void special_set_position (framepos_t);
217 virtual void update_after_tempo_map_change ();
218 void nudge_position (frameoffset_t);
220 bool at_natural_position () const;
221 void move_to_natural_position ();
223 void move_start (frameoffset_t distance);
224 void trim_front (framepos_t new_position);
225 void trim_end (framepos_t new_position);
226 void trim_to (framepos_t position, framecnt_t length);
228 void cut_front (framepos_t new_position);
229 void cut_end (framepos_t new_position);
231 void set_layer (layer_t l); /* ONLY Playlist can call this */
234 void raise_to_top ();
235 void lower_to_bottom ();
237 void set_sync_position (framepos_t n);
238 void clear_sync_position ();
239 void set_hidden (bool yn);
240 void set_muted (bool yn);
241 void set_whole_file (bool yn);
242 void set_automatic (bool yn);
243 void set_opaque (bool yn);
244 void set_locked (bool yn);
245 void set_video_locked (bool yn);
246 void set_position_locked (bool yn);
248 int apply (Filter &, Progress* progress = 0);
250 boost::shared_ptr<ARDOUR::Playlist> playlist () const { return _playlist.lock(); }
251 virtual void set_playlist (boost::weak_ptr<ARDOUR::Playlist>);
253 void source_deleted (boost::weak_ptr<Source>);
255 bool is_compound () const;
257 boost::shared_ptr<Source> source (uint32_t n=0) const { return _sources[ (n < _sources.size()) ? n : 0 ]; }
258 uint32_t n_channels() const { return _sources.size(); }
260 const SourceList& sources () const { return _sources; }
261 const SourceList& master_sources () const { return _master_sources; }
263 std::vector<std::string> master_source_names();
264 void set_master_sources (const SourceList&);
268 virtual boost::shared_ptr<Evoral::Control>
269 control (const Evoral::Parameter& id, bool create=false) = 0;
271 virtual boost::shared_ptr<const Evoral::Control>
272 control (const Evoral::Parameter& id) const = 0;
276 XMLNode& get_state ();
277 virtual XMLNode& state ();
278 virtual int set_state (const XMLNode&, int version);
280 virtual boost::shared_ptr<Region> get_parent() const;
282 uint64_t layering_index () const { return _layering_index; }
283 void set_layering_index (uint64_t when) { _layering_index = when; }
285 virtual bool is_dependent() const { return false; }
286 virtual bool depends_on (boost::shared_ptr<Region> /*other*/) const { return false; }
288 virtual void add_transient (framepos_t) {
289 // no transients, but its OK
292 virtual int update_transient (framepos_t /* old_position */, framepos_t /* new_position */) {
293 // no transients, but its OK
297 virtual void remove_transient (framepos_t /* where */) {
298 // no transients, but its OK
301 virtual int set_transients (AnalysisFeatureList&) {
302 // no transients, but its OK
306 virtual int get_transients (AnalysisFeatureList&, bool force_new = false) {
308 // no transients, but its OK
312 virtual int adjust_transients (frameoffset_t /*delta*/) {
313 // no transients, but its OK
317 virtual int separate_by_channel (ARDOUR::Session&,
318 std::vector< boost::shared_ptr<Region> >&) const {
322 void invalidate_transients ();
324 void drop_sources ();
327 friend class RegionFactory;
329 /** Construct a region from multiple sources*/
330 Region (const SourceList& srcs);
332 /** Construct a region from another region */
333 Region (boost::shared_ptr<const Region>);
335 /** Construct a region from another region, at an offset within that region */
336 Region (boost::shared_ptr<const Region>, frameoffset_t start_offset);
338 /** Construct a region as a copy of another region, but with different sources */
339 Region (boost::shared_ptr<const Region>, const SourceList&);
341 /** Constructor for derived types only */
342 Region (Session& s, framepos_t start, framecnt_t length, const std::string& name, DataType);
344 virtual bool can_trim_start_before_source_start () const {
350 void send_change (const PBD::PropertyChange&);
351 virtual int _set_state (const XMLNode&, int version, PBD::PropertyChange& what_changed, bool send_signal);
352 void post_set (const PBD::PropertyChange&);
353 virtual void set_position_internal (framepos_t pos, bool allow_bbt_recompute);
354 virtual void set_length_internal (framecnt_t);
355 virtual void set_start_internal (framecnt_t);
359 PBD::Property<bool> _sync_marked;
360 PBD::Property<bool> _left_of_split;
361 PBD::Property<bool> _right_of_split;
362 PBD::Property<bool> _valid_transients;
363 PBD::Property<framepos_t> _start;
364 PBD::Property<framecnt_t> _length;
365 PBD::Property<framepos_t> _position;
366 /** Sync position relative to the start of our file */
367 PBD::Property<framepos_t> _sync_position;
370 /** Used when timefx are applied, so we can always use the original source */
371 SourceList _master_sources;
373 AnalysisFeatureList _transients;
375 boost::weak_ptr<ARDOUR::Playlist> _playlist;
378 void mid_thaw (const PBD::PropertyChange&);
380 void trim_to_internal (framepos_t position, framecnt_t length);
381 void modify_front (framepos_t new_position, bool reset_fade);
382 void modify_end (framepos_t new_position, bool reset_fade);
384 void maybe_uncopy ();
387 bool verify_start (framepos_t);
388 bool verify_start_and_length (framepos_t, framecnt_t&);
389 bool verify_start_mutable (framepos_t&_start);
390 bool verify_length (framecnt_t);
392 virtual void recompute_at_start () = 0;
393 virtual void recompute_at_end () = 0;
395 PBD::Property<bool> _muted;
396 PBD::Property<bool> _opaque;
397 PBD::Property<bool> _locked;
398 PBD::Property<bool> _video_locked;
399 PBD::Property<bool> _automatic;
400 PBD::Property<bool> _whole_file;
401 PBD::Property<bool> _import;
402 PBD::Property<bool> _external;
403 PBD::Property<bool> _hidden;
404 PBD::Property<bool> _position_locked;
405 PBD::Property<framepos_t> _ancestral_start;
406 PBD::Property<framecnt_t> _ancestral_length;
407 PBD::Property<float> _stretch;
408 PBD::Property<float> _shift;
409 PBD::EnumProperty<PositionLockStyle> _position_lock_style;
410 PBD::Property<uint64_t> _layering_index;
412 framecnt_t _last_length;
413 framepos_t _last_position;
414 mutable RegionEditState _first_edit;
415 Timecode::BBT_Time _bbt_time;
418 void register_properties ();
420 void use_sources (SourceList const &);
423 } /* namespace ARDOUR */
425 #endif /* __ardour_region_h__ */