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/*
Copyright (C) 2000 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_location_h__
#define __ardour_location_h__
#include <string>
#include <list>
#include <iostream>
#include <map>
#include <sys/types.h>
#include <glibmm/threads.h>
#include "pbd/undo.h"
#include "pbd/stateful.h"
#include "pbd/statefuldestructible.h"
#include "ardour/ardour.h"
#include "ardour/scene_change.h"
#include "ardour/session_handle.h"
namespace ARDOUR {
class SceneChange;
/** Location on Timeline - abstract representation for Markers, Loop/Punch Ranges, CD-Markers etc. */
class LIBARDOUR_API Location : public SessionHandleRef, public PBD::StatefulDestructible
{
public:
enum Flags {
IsMark = 0x1,
IsAutoPunch = 0x2,
IsAutoLoop = 0x4,
IsHidden = 0x8,
IsCDMarker = 0x10,
IsRangeMarker = 0x20,
IsSessionRange = 0x40,
IsSkip = 0x80,
IsSkipping = 0x100, /* skipping is active (or not) */
};
Location (Session &);
Location (Session &, framepos_t, framepos_t, const std::string &, Flags bits = Flags(0));
Location (const Location& other);
Location (Session &, const XMLNode&);
Location* operator= (const Location& other);
bool operator==(const Location& other);
bool locked() const { return _locked; }
void lock ();
void unlock ();
framepos_t start() const { return _start; }
framepos_t end() const { return _end; }
framecnt_t length() const { return _end - _start; }
int set_start (framepos_t s, bool force = false, bool allow_bbt_recompute = true);
int set_end (framepos_t e, bool force = false, bool allow_bbt_recompute = true);
int set (framepos_t start, framepos_t end, bool allow_bbt_recompute = true);
int move_to (framepos_t pos);
const std::string& name() const { return _name; }
void set_name (const std::string &str);
void set_auto_punch (bool yn, void *src);
void set_auto_loop (bool yn, void *src);
void set_hidden (bool yn, void *src);
void set_cd (bool yn, void *src);
void set_is_range_marker (bool yn, void* src);
void set_skip (bool yn);
void set_skipping (bool yn);
bool is_auto_punch () const { return _flags & IsAutoPunch; }
bool is_auto_loop () const { return _flags & IsAutoLoop; }
bool is_mark () const { return _flags & IsMark; }
bool is_hidden () const { return _flags & IsHidden; }
bool is_cd_marker () const { return _flags & IsCDMarker; }
bool is_session_range () const { return _flags & IsSessionRange; }
bool is_range_marker() const { return _flags & IsRangeMarker; }
bool is_skip() const { return _flags & IsSkip; }
bool is_skipping() const { return (_flags & IsSkip) && (_flags & IsSkipping); }
bool matches (Flags f) const { return _flags & f; }
Flags flags () const { return _flags; }
boost::shared_ptr<SceneChange> scene_change() const { return _scene_change; }
void set_scene_change (boost::shared_ptr<SceneChange>);
/* these are static signals for objects that want to listen to all
locations at once.
*/
static PBD::Signal1<void,Location*> name_changed;
static PBD::Signal1<void,Location*> end_changed;
static PBD::Signal1<void,Location*> start_changed;
static PBD::Signal1<void,Location*> flags_changed;
static PBD::Signal1<void,Location*> lock_changed;
static PBD::Signal1<void,Location*> position_lock_style_changed;
/* this is sent only when both start and end change at the same time */
static PBD::Signal1<void,Location*> changed;
/* these are member signals for objects that care only about
changes to this object
*/
PBD::Signal0<void> Changed;
PBD::Signal0<void> NameChanged;
PBD::Signal0<void> EndChanged;
PBD::Signal0<void> StartChanged;
PBD::Signal0<void> FlagsChanged;
PBD::Signal0<void> LockChanged;
PBD::Signal0<void> PositionLockStyleChanged;
/* CD Track / CD-Text info */
std::map<std::string, std::string> cd_info;
XMLNode& cd_info_node (const std::string &, const std::string &);
XMLNode& get_state (void);
int set_state (const XMLNode&, int version);
PositionLockStyle position_lock_style() const { return _position_lock_style; }
void set_position_lock_style (PositionLockStyle ps);
void recompute_frames_from_bbt ();
static PBD::Signal0<void> scene_changed; /* for use by backend scene change management, class level */
PBD::Signal0<void> SceneChangeChanged; /* for use by objects interested in this object */
private:
std::string _name;
framepos_t _start;
double _bbt_start;
framepos_t _end;
double _bbt_end;
Flags _flags;
bool _locked;
PositionLockStyle _position_lock_style;
boost::shared_ptr<SceneChange> _scene_change;
void set_mark (bool yn);
bool set_flag_internal (bool yn, Flags flag);
void recompute_bbt_from_frames ();
};
/** A collection of session locations including unique dedicated locations (loop, punch, etc) */
class LIBARDOUR_API Locations : public SessionHandleRef, public PBD::StatefulDestructible
{
public:
typedef std::list<Location *> LocationList;
Locations (Session &);
~Locations ();
const LocationList& list () const { return locations; }
LocationList list () { return locations; }
void add (Location *, bool make_current = false);
void remove (Location *);
void clear ();
void clear_markers ();
void clear_ranges ();
XMLNode& get_state (void);
int set_state (const XMLNode&, int version);
Location *get_location_by_id(PBD::ID);
Location* auto_loop_location () const;
Location* auto_punch_location () const;
Location* session_range_location() const;
int next_available_name(std::string& result,std::string base);
uint32_t num_range_markers() const;
int set_current (Location *, bool want_lock = true);
Location *current () const { return current_location; }
Location* mark_at (framepos_t, framecnt_t slop = 0) const;
framepos_t first_mark_before (framepos_t, bool include_special_ranges = false);
framepos_t first_mark_after (framepos_t, bool include_special_ranges = false);
void marks_either_side (framepos_t const, framepos_t &, framepos_t &) const;
void find_all_between (framepos_t start, framepos_t, LocationList&, Location::Flags);
PBD::Signal1<void,Location*> current_changed;
/* Objects that care about individual addition and removal of Locations should connect to added/removed.
If an object additionally cares about potential mass clearance of Locations, they should connect to changed.
*/
PBD::Signal1<void,Location*> added;
PBD::Signal1<void,Location*> removed;
PBD::Signal0<void> changed; /* emitted when any action that could have added/removed more than 1 location actually removed 1 or more */
template<class T> void apply (T& obj, void (T::*method)(const LocationList&)) const {
/* We don't want to hold the lock while the given method runs, so take a copy
of the list and pass that instead.
*/
Locations::LocationList copy;
{
Glib::Threads::Mutex::Lock lm (lock);
copy = locations;
}
(obj.*method)(copy);
}
private:
LocationList locations;
Location *current_location;
mutable Glib::Threads::Mutex lock;
int set_current_unlocked (Location *);
void location_changed (Location*);
void listen_to (Location*);
};
} // namespace ARDOUR
#endif /* __ardour_location_h__ */
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