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.
20 #ifndef __ardour_location_h__
21 #define __ardour_location_h__
28 #include <sys/types.h>
30 #include <glibmm/threads.h>
33 #include "pbd/stateful.h"
34 #include "pbd/statefuldestructible.h"
36 #include "ardour/ardour.h"
37 #include "ardour/scene_change.h"
38 #include "ardour/session_handle.h"
44 /** Location on Timeline - abstract representation for Markers, Loop/Punch Ranges, CD-Markers etc. */
45 class LIBARDOUR_API Location : public SessionHandleRef, public PBD::StatefulDestructible
55 IsSessionRange = 0x40,
57 IsSkipping = 0x100, /* skipping is active (or not) */
58 IsClockOrigin = 0x200,
62 Location (Session &, samplepos_t, samplepos_t, const std::string &, Flags bits = Flags(0), const uint32_t sub_num = 0);
63 Location (const Location& other);
64 Location (Session &, const XMLNode&);
65 Location* operator= (const Location& other);
67 bool operator==(const Location& other);
69 bool locked() const { return _locked; }
73 samplepos_t start() const { return _start; }
74 samplepos_t end() const { return _end; }
75 samplecnt_t length() const { return _end - _start; }
77 int set_start (samplepos_t s, bool force = false, bool allow_beat_recompute = true, const uint32_t sub_num = 0);
78 int set_end (samplepos_t e, bool force = false, bool allow_beat_recompute = true, const uint32_t sub_num = 0);
79 int set (samplepos_t start, samplepos_t end, bool allow_beat_recompute = true, const uint32_t sub_num = 0);
81 int move_to (samplepos_t pos, const uint32_t sub_num);
83 const std::string& name() const { return _name; }
84 void set_name (const std::string &str);
86 void set_auto_punch (bool yn, void *src);
87 void set_auto_loop (bool yn, void *src);
88 void set_hidden (bool yn, void *src);
89 void set_cd (bool yn, void *src);
90 void set_is_range_marker (bool yn, void* src);
91 void set_is_clock_origin (bool yn, void* src);
92 void set_skip (bool yn);
93 void set_skipping (bool yn);
95 bool is_auto_punch () const { return _flags & IsAutoPunch; }
96 bool is_auto_loop () const { return _flags & IsAutoLoop; }
97 bool is_mark () const { return _flags & IsMark; }
98 bool is_hidden () const { return _flags & IsHidden; }
99 bool is_cd_marker () const { return _flags & IsCDMarker; }
100 bool is_session_range () const { return _flags & IsSessionRange; }
101 bool is_range_marker() const { return _flags & IsRangeMarker; }
102 bool is_skip() const { return _flags & IsSkip; }
103 bool is_clock_origin() const { return _flags & IsClockOrigin; }
104 bool is_skipping() const { return (_flags & IsSkip) && (_flags & IsSkipping); }
105 bool matches (Flags f) const { return _flags & f; }
107 Flags flags () const { return _flags; }
109 boost::shared_ptr<SceneChange> scene_change() const { return _scene_change; }
110 void set_scene_change (boost::shared_ptr<SceneChange>);
112 /* these are static signals for objects that want to listen to all
116 static PBD::Signal1<void,Location*> name_changed;
117 static PBD::Signal1<void,Location*> end_changed;
118 static PBD::Signal1<void,Location*> start_changed;
119 static PBD::Signal1<void,Location*> flags_changed;
120 static PBD::Signal1<void,Location*> lock_changed;
121 static PBD::Signal1<void,Location*> position_lock_style_changed;
123 /* this is sent only when both start and end change at the same time */
124 static PBD::Signal1<void,Location*> changed;
126 /* these are member signals for objects that care only about
127 changes to this object
130 PBD::Signal0<void> Changed;
132 PBD::Signal0<void> NameChanged;
133 PBD::Signal0<void> EndChanged;
134 PBD::Signal0<void> StartChanged;
135 PBD::Signal0<void> FlagsChanged;
136 PBD::Signal0<void> LockChanged;
137 PBD::Signal0<void> PositionLockStyleChanged;
139 /* CD Track / CD-Text info */
141 std::map<std::string, std::string> cd_info;
142 XMLNode& cd_info_node (const std::string &, const std::string &);
144 XMLNode& get_state (void);
145 int set_state (const XMLNode&, int version);
147 PositionLockStyle position_lock_style() const { return _position_lock_style; }
148 void set_position_lock_style (PositionLockStyle ps);
149 void recompute_samples_from_beat ();
151 static PBD::Signal0<void> scene_changed; /* for use by backend scene change management, class level */
152 PBD::Signal0<void> SceneChangeChanged; /* for use by objects interested in this object */
162 PositionLockStyle _position_lock_style;
163 boost::shared_ptr<SceneChange> _scene_change;
165 void set_mark (bool yn);
166 bool set_flag_internal (bool yn, Flags flag);
167 void recompute_beat_from_samples (const uint32_t sub_num);
170 /** A collection of session locations including unique dedicated locations (loop, punch, etc) */
171 class LIBARDOUR_API Locations : public SessionHandleRef, public PBD::StatefulDestructible
174 typedef std::list<Location *> LocationList;
176 Locations (Session &);
179 const LocationList& list () const { return locations; }
180 LocationList list () { return locations; }
182 void add (Location *, bool make_current = false);
183 void remove (Location *);
185 void clear_markers ();
186 void clear_ranges ();
188 XMLNode& get_state (void);
189 int set_state (const XMLNode&, int version);
190 Location *get_location_by_id(PBD::ID);
192 Location* auto_loop_location () const;
193 Location* auto_punch_location () const;
194 Location* session_range_location() const;
195 Location* clock_origin_location() const;
197 int next_available_name(std::string& result,std::string base);
198 uint32_t num_range_markers() const;
200 int set_current (Location *, bool want_lock = true);
201 Location *current () const { return current_location; }
203 Location* mark_at (samplepos_t, samplecnt_t slop = 0) const;
205 void set_clock_origin (Location*, void *src);
207 samplepos_t first_mark_before (samplepos_t, bool include_special_ranges = false);
208 samplepos_t first_mark_after (samplepos_t, bool include_special_ranges = false);
210 void marks_either_side (samplepos_t const, samplepos_t &, samplepos_t &) const;
212 void find_all_between (samplepos_t start, samplepos_t, LocationList&, Location::Flags);
214 PBD::Signal1<void,Location*> current_changed;
216 /* Objects that care about individual addition and removal of Locations should connect to added/removed.
217 If an object additionally cares about potential mass clearance of Locations, they should connect to changed.
220 PBD::Signal1<void,Location*> added;
221 PBD::Signal1<void,Location*> removed;
222 PBD::Signal0<void> changed; /* emitted when any action that could have added/removed more than 1 location actually removed 1 or more */
224 template<class T> void apply (T& obj, void (T::*method)(const LocationList&)) const {
225 /* We don't want to hold the lock while the given method runs, so take a copy
226 of the list and pass that instead.
228 Locations::LocationList copy;
230 Glib::Threads::Mutex::Lock lm (lock);
238 LocationList locations;
239 Location *current_location;
240 mutable Glib::Threads::Mutex lock;
242 int set_current_unlocked (Location *);
243 void location_changed (Location*);
244 void listen_to (Location*);
247 } // namespace ARDOUR
249 #endif /* __ardour_location_h__ */