Copyright (C) 1994, Digital Equipment Corp.
Digital Internal Use Only
Created on Sun May 22 11:14:17 PDT 1994 by najork
INTERFACE MarkerTypeProp;
IMPORT AnimHandle, Prop;
TYPE
Kind = {Dot, Cross, Asterisk, Circle, X};
Kind enumerates the five possible ways a marker can be drawn: as a dot,
a cross, an asterisk, a circle, or an X. These are the five marker types
that are supported by PEX. OpenGL does not have a marker concept. However,
we could build them up from lines and dots (however, this would not be a
perfect approximation, as PEX markers always orient themselves towards
the camera).
TYPE
Name <: PublicName;
PublicName = Prop.Name OBJECT
METHODS
bind (v : Val) : Prop.T;
END;
Val <: PublicVal;
PublicVal = Prop.Val OBJECT
beh : Beh;
METHODS
init (beh : Beh) : Val;
get () : Kind RAISES {Prop.BadMethod};
value (time : LONGREAL) : Kind RAISES {Prop.BadMethod};
END;
Beh <: PublicBeh;
PublicBeh = Prop.Beh OBJECT
METHODS
init () : Beh;
END;
ConstBeh <: PublicConstBeh;
PublicConstBeh = Beh OBJECT
METHODS
init (p : Kind) : ConstBeh;
set (p : Kind);
END;
SyncBeh <: PublicSyncBeh;
PublicSyncBeh = Beh OBJECT
METHODS
init (ah : AnimHandle.T; p : Kind) : SyncBeh;
addRequest (r : Request) RAISES {Prop.BadInterval};
(* shortcuts for particular instances of "addRequest" *)
change (p : Kind; start := 0.0) RAISES {Prop.BadInterval};
END;
AsyncBeh <: PublicAsyncBeh;
PublicAsyncBeh = Beh OBJECT
METHODS
init () : AsyncBeh;
compute (time : LONGREAL) : Kind RAISES {Prop.BadMethod};
END;
DepBeh <: PublicDepBeh;
PublicDepBeh = Beh OBJECT
METHODS
init () : DepBeh;
compute (time : LONGREAL) : Kind RAISES {Prop.BadMethod};
END;
Request <: PublicRequest;
PublicRequest = Prop.Request OBJECT
METHODS
init (start, dur : REAL) : Request;
value (startkind : Kind; reltime : REAL) : Kind RAISES {Prop.BadMethod};
END;
PROCEDURE NewConst (p : Kind) : Val;
PROCEDURE NewSync (ah : AnimHandle.T; p : Kind) : Val;
PROCEDURE NewAsync (b : AsyncBeh) : Val;
PROCEDURE NewDep (b : DepBeh) : Val;
END MarkerTypeProp.