ui/src/vbt/MouseSplit.i3


Copyright (C) 1994, Digital Equipment Corp.
 by Steve Glassman, Mark Manasse and Greg Nelson           
<*PRAGMA LL*>

INTERFACE MouseSplit;
The procedures in this interface implement the semantics described in the VBT interface for delivering mouseclicks and positions to split children, and for setting the cursor and cage of a split parent.

IMPORT VBT, ScrnCursor, VBTClass;

TYPE Public = VBTClass.Public OBJECT
  <* LL >= SELF *>
  effectiveCursor: ScrnCursor.T := NIL;
  <* LL >= {SELF, VBT.mu} *>
  mouseRef: MouseRef := NIL
END;

TYPE MouseRef <: REFANY;

REVEAL VBT.Split <: Public;

PROCEDURE Mouse(v: VBT.Split; READONLY cd: VBT.MouseRec);

PROCEDURE Position(v: VBT.Split; READONLY cd: VBT.PositionRec);

PROCEDURE Setcage(v: VBT.Split; ch: VBT.T);

PROCEDURE Setcursor(v: VBT.Split; ch: VBT.T);

PROCEDURE Getcursor(v: VBT.Split): ScrnCursor.T;

PROCEDURE InvalidateCache(v: VBT.Split);
Clear any cached results of the child locate method. If v's methods come from this interface, you must call this procedure whenever the geometry of v changes.

END MouseSplit.