MODULE ObxViews10;
(**

   project   = "BlackBox"
   organization   = "www.oberon.ch"
   contributors   = "Oberon microsystems"
   version   = "System/Rsrc/About"
   copyright   = "System/Rsrc/About"
   license   = "Docu/BB-License"
   changes   = ""
   issues   = ""

**)

   IMPORT Fonts, Ports, Views, Controllers, Properties;

   CONST d = 20 * Ports.point;

   TYPE

      View = POINTER TO RECORD (Views.View)
         i: INTEGER;            (* position of next free slot in string *)
         s: ARRAY 256 OF CHAR   (* string *)
      END;
   PROCEDURE (v: View) Restore (f: Views.Frame; l, t, r, b: INTEGER);

   BEGIN
      f.DrawString(d, d, Ports.black, v.s, Fonts.dir.Default())
   END Restore;
   PROCEDURE (v: View) HandleCtrlMsg (f: Views.Frame;

                              VAR msg: Controllers.Message;
                              VAR focus: Views.View);
   BEGIN
      WITH msg: Controllers.EditMsg DO
         IF msg.op = Controllers.pasteChar THEN   (* accept typing *)
            v.s[v.i] := msg.char; INC(v.i); v.s[v.i] := 0X;   (* append character to string *)
            Views.Update(v, Views.keepFrames)   (* restore v in any frame that displays it *)
         END
      ELSE                  (* ignore other messages *)
      END
   END HandleCtrlMsg;
   
   PROCEDURE (v:View) HandlePropMsg (VAR msg: Properties.Message);
   BEGIN
      WITH msg: Properties.SizePref DO
         IF (msg.w = Views.undefined) OR (msg.h = Views.undefined) THEN
            msg.w := 10 * d; msg.h := 2 * d
         END
      | msg: Properties.FocusPref DO
         msg.setFocus := TRUE
      ELSE
      END
   END HandlePropMsg;
   PROCEDURE Deposit*;

      VAR v: View;
   BEGIN
      NEW(v); v.s := ""; v.i := 0;
      Views.Deposit(v)
   END Deposit;
END ObxViews10.