2 Copyright (C) 2000 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.
21 #ifndef __ardour_playlist_h__
22 #define __ardour_playlist_h__
33 #include <sigc++/signal.h>
36 #include <pbd/stateful.h>
38 #include <ardour/ardour.h>
39 #include <ardour/crossfade_compare.h>
40 #include <ardour/location.h>
41 #include <ardour/state_manager.h>
48 class Playlist : public Stateful, public StateManager {
50 typedef list<Region*> RegionList;
52 Playlist (Session&, const XMLNode&, bool hidden = false);
53 Playlist (Session&, string name, bool hidden = false);
54 Playlist (const Playlist&, string name, bool hidden = false);
55 Playlist (const Playlist&, jack_nframes_t start, jack_nframes_t cnt, string name, bool hidden = false);
57 //virtual jack_nframes_t read (Sample *dst, Sample *mixdown, float *gain_buffer, char * workbuf, jack_nframes_t start, jack_nframes_t cnt, uint32_t chan_n=0) = 0;
58 virtual void clear (bool with_delete = false, bool with_save = true);
59 virtual void dump () const;
60 virtual UndoAction get_memento() const = 0;
64 uint32_t refcnt() const { return _refcnt; }
66 const string& name() const { return _name; }
67 void set_name (const string& str);
69 bool frozen() const { return _frozen; }
70 void set_frozen (bool yn);
72 bool hidden() const { return _hidden; }
74 jack_nframes_t get_maximum_extent () const;
75 layer_t top_layer() const;
77 EditMode get_edit_mode() const { return _edit_mode; }
78 void set_edit_mode (EditMode);
80 /* Editing operations */
82 void add_region (const Region&, jack_nframes_t position, float times = 1, bool with_save = true);
83 void remove_region (Region *);
84 void get_equivalent_regions (const Region&, std::vector<Region*>&);
85 void get_region_list_equivalent_regions (const Region&, std::vector<Region*>&);
86 void replace_region (Region& old, Region& newr, jack_nframes_t pos);
87 void split_region (Region&, jack_nframes_t position);
88 void partition (jack_nframes_t start, jack_nframes_t end, bool just_top_level);
89 void duplicate (Region&, jack_nframes_t position, float times);
90 void nudge_after (jack_nframes_t start, jack_nframes_t distance, bool forwards);
92 Region* find_region (const PBD::ID&) const;
94 Playlist* cut (list<AudioRange>&, bool result_is_hidden = true);
95 Playlist* copy (list<AudioRange>&, bool result_is_hidden = true);
96 int paste (Playlist&, jack_nframes_t position, float times);
98 uint32_t read_data_count() { return _read_data_count; }
100 RegionList* regions_at (jack_nframes_t frame);
101 RegionList* regions_touched (jack_nframes_t start, jack_nframes_t end);
102 Region* top_region_at (jack_nframes_t frame);
104 Region* find_next_region (jack_nframes_t frame, RegionPoint point, int dir);
106 template<class T> void foreach_region (T *t, void (T::*func)(Region *, void *), void *arg);
107 template<class T> void foreach_region (T *t, void (T::*func)(Region *));
109 XMLNode& get_state ();
110 int set_state (const XMLNode&);
111 XMLNode& get_template ();
113 sigc::signal<void,Region *> RegionAdded;
114 sigc::signal<void,Region *> RegionRemoved;
116 sigc::signal<void,Playlist*,bool> InUse;
117 sigc::signal<void> Modified;
118 sigc::signal<void> NameChanged;
119 sigc::signal<void> LengthChanged;
120 sigc::signal<void> LayeringChanged;
121 sigc::signal<void,Playlist *> GoingAway;
122 sigc::signal<void> StatePushed;
124 static sigc::signal<void,Playlist*> PlaylistCreated;
126 static string bump_name (string old_name, Session&);
127 static string bump_name_once (string old_name);
132 void raise_region (Region&);
133 void lower_region (Region&);
134 void raise_region_to_top (Region&);
135 void lower_region_to_bottom (Region&);
137 uint32_t read_data_count() const { return _read_data_count; }
139 Session& session() { return _session; }
141 const PBD::ID& get_orig_diskstream_id () const { return _orig_diskstream_id; }
142 void set_orig_diskstream_id (const PBD::ID& did) { _orig_diskstream_id = did; }
144 /* destructive editing */
146 virtual bool destroy_region (Region *) = 0;
149 friend class Session;
150 virtual ~Playlist (); /* members of the public use unref() */
154 RegionLock (Playlist *pl, bool do_block_notify = true) : playlist (pl), block_notify (do_block_notify) {
155 playlist->region_lock.lock();
157 playlist->delay_notifications();
161 playlist->region_lock.unlock();
163 playlist->release_notifications ();
170 friend class RegionLock;
175 mutable gint block_notifications;
176 mutable gint ignore_state_changes;
177 mutable Glib::Mutex region_lock;
178 RegionList pending_removals;
179 RegionList pending_adds;
180 RegionList pending_bounds;
181 bool pending_modified;
184 string last_save_reason;
195 uint32_t _read_data_count;
196 PBD::ID _orig_diskstream_id;
197 uint64_t layer_op_counter;
198 jack_nframes_t freeze_length;
200 void init (bool hide);
202 bool holding_state () const {
203 return g_atomic_int_get (&block_notifications) != 0 ||
204 g_atomic_int_get (&ignore_state_changes) != 0;
207 /* prevent the compiler from ever generating these */
209 Playlist (const Playlist&);
210 Playlist (Playlist&);
212 void delay_notifications ();
213 void release_notifications ();
214 virtual void flush_notifications ();
216 void notify_region_removed (Region *);
217 void notify_region_added (Region *);
218 void notify_length_changed ();
219 void notify_layering_changed ();
220 void notify_modified ();
221 void notify_state_changed (Change);
223 void mark_session_dirty();
225 void region_changed_proxy (Change, Region*);
226 virtual bool region_changed (Change, Region*);
228 void region_bounds_changed (Change, Region *);
229 void region_deleted (Region *);
231 void sort_regions ();
233 void possibly_splice ();
234 void possibly_splice_unlocked();
236 void splice_locked ();
237 void splice_unlocked ();
240 virtual void finalize_split_region (Region *original, Region *left, Region *right) {}
242 virtual void check_dependents (Region& region, bool norefresh) {}
243 virtual void refresh_dependents (Region& region) {}
244 virtual void remove_dependents (Region& region) {}
246 virtual XMLNode& state (bool);
248 /* override state_manager::save_state so we can check in_set_state() */
250 void save_state (std::string why);
251 void maybe_save_state (std::string why);
253 void add_region_internal (Region *, jack_nframes_t position, bool delay_sort = false);
255 int remove_region_internal (Region *, bool delay_sort = false);
256 RegionList *find_regions_at (jack_nframes_t frame);
257 void copy_regions (RegionList&) const;
258 void partition_internal (jack_nframes_t start, jack_nframes_t end, bool cutting, RegionList& thawlist);
260 jack_nframes_t _get_maximum_extent() const;
262 Playlist* cut_copy (Playlist* (Playlist::*pmf)(jack_nframes_t, jack_nframes_t, bool),
263 list<AudioRange>& ranges, bool result_is_hidden);
264 Playlist *cut (jack_nframes_t start, jack_nframes_t cnt, bool result_is_hidden);
265 Playlist *copy (jack_nframes_t start, jack_nframes_t cnt, bool result_is_hidden);
268 int move_region_to_layer (layer_t, Region& r, int dir);
271 static Playlist* copyPlaylist (const Playlist&, jack_nframes_t start, jack_nframes_t length,
272 string name, bool result_is_hidden);
274 void unset_freeze_parent (Playlist*);
275 void unset_freeze_child (Playlist*);
277 void timestamp_layer_op (Region&);
280 } /* namespace ARDOUR */
282 #endif /* __ardour_playlist_h__ */