[Oberon] N-O: HOW2 SelectTextStretch given beg, end ?

[Bernhard Egger]

For me, the following code works in Bluebottle Oberon:

moving the current selection by 5 characters:

PROCEDURE MoveSelection*;
VAR M: Oberon.SelectMsg;
BEGIN
	(* get current selection *)
	M.F := NIL; M.id := Oberon.get; M.time := -1; M.text := NIL;
	Display.Broadcast(M);
	
	(* move selection by 5 characters *)
	M.id := Oberon.set; M.beg := M.beg+5; M.end := M.end+5;
	Display.Broadcast(M)
END MoveSelection;



setting a new selection in the marked (*) text:

PROCEDURE SetSelection*;
VAR M: Oberon.SelectMsg;
BEGIN
	(* get marked text and select chars 5..10 *)
	M.sel := Oberon.MarkedFrame(); M.text := Oberon.MarkedText();
	M.id := Oberon.set; M.time := -1; M.beg := 5; M.end := 10;
	Display.Broadcast(M)
END SetSelection;

The complete source follows below.


--Bernhard


http://aces.snu.ac.kr/~bernhard/bluebottle/Select.Mod

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