Copyright (C) 1994, Digital Equipment Corp.
This file includes the VText operations that involve Regions. These will
change when VText supports Regions using Trestle subwindows.
INTERFACE VTextRegion;
IMPORT Rd, Rect, Thread;
IMPORT VTDef, VTextDef;
TYPE
T = VTextDef.T; (* A vtext *)
Pixels = VTDef.Pixels; (* A screen coordinate *)
ErrorCode = VTDef.ErrorCode;
I = VTDef.I;
Region = VTextDef.Region;
EXCEPTION
Error (ErrorCode)(*! = VTDef.Error !*);
PROCEDURE SplitRegion (vtext : T;
r : Region;
v : Pixels;
scroll: BOOLEAN := TRUE)
RAISES {VTDef.Error, Rd.EndOfFile, Rd.Failure, Thread.Alerted};
PROCEDURE MergeRegion (vtext: T; i, j: Region; scroll: BOOLEAN := TRUE)
RAISES {VTDef.Error, Rd.EndOfFile, Rd.Failure, Thread.Alerted};
PROCEDURE Move ( vtext : T;
READONLY newRect, savedRect: Rect.T;
READONLY dividers : ARRAY OF Pixels;
scroll : BOOLEAN )
RAISES {VTDef.Error, Rd.EndOfFile, Rd.Failure, Thread.Alerted};
PROCEDURE SetupRegion
(vtext: T; r: Region; north: Pixels; height: CARDINAL; startIndex: I)
RAISES {Rd.EndOfFile, Rd.Failure, Thread.Alerted};
PROCEDURE Bad (vtext: T; READONLY where: Rect.T) RAISES {};
PROCEDURE UpdateDividers (vtext: T) RAISES {};
END VTextRegion.