- nframes_t first_frame() const { return _position; }
- nframes_t last_frame() const { return _position + _length - 1; }
-
- Flag flags() const { return _flags; }
- bool hidden() const { return _flags & Hidden; }
- bool muted() const { return _flags & Muted; }
- bool opaque () const { return _flags & Opaque; }
- bool locked() const { return _flags & Locked; }
- bool position_locked() const { return _flags & PositionLocked; }
- bool automatic() const { return _flags & Automatic; }
- bool whole_file() const { return _flags & WholeFile ; }
- bool captured() const { return !(_flags & (Region::Flag (Region::Import|Region::External))); }
- bool can_move() const { return !(_flags & (Locked|PositionLocked)); }
-
- PositionLockStyle positional_lock_style() const { return _positional_lock_style; }
+ framepos_t first_frame () const { return _position; }
+ framepos_t last_frame () const { return _position + _length - 1; }
+
+ /** Return the earliest possible value of _position given the
+ * value of _start within the region's sources
+ */
+ framepos_t earliest_possible_position () const;
+ /** Return the last possible value of _last_frame given the
+ * value of _startin the regions's sources
+ */
+ framepos_t latest_possible_frame () const;
+
+ Evoral::Range<framepos_t> last_range () const {
+ return Evoral::Range<framepos_t> (_last_position, _last_position + _last_length - 1);
+ }
+
+ Evoral::Range<framepos_t> range () const {
+ return Evoral::Range<framepos_t> (first_frame(), last_frame());
+ }
+
+ bool hidden () const { return _hidden; }
+ bool muted () const { return _muted; }
+ bool opaque () const { return _opaque; }
+ bool locked () const { return _locked; }
+ bool position_locked () const { return _position_locked; }
+ bool video_locked () const { return _video_locked; }
+ bool valid_transients () const { return _valid_transients; }
+ bool automatic () const { return _automatic; }
+ bool whole_file () const { return _whole_file; }
+ bool captured () const { return !(_import || _external); }
+ bool can_move () const { return !_position_locked && !_locked; }
+ bool sync_marked () const { return _sync_marked; }
+ bool external () const { return _external; }
+ bool import () const { return _import; }
+
+ Trimmable::CanTrim can_trim () const;
+
+ PositionLockStyle position_lock_style () const { return _position_lock_style; }
+