IMPLEMENTATION MODULE ScrnTypes;
(*
 *  REPERTOIRE
 *  Release 1.6
 *  By Charles Bradford and Cole Brecheen
 *  (c) Copyright 1985-1992 PMI
 *  Green Bay, Wisconsin
 *  All rights reserved
 *  (414) 468-6040
 *
 *  $Header:   D:/logfiles/mods/scrntype.mov   1.5   10 Mar 1991 15:32:10   coleb  $
 *
 *)



IMPORT ErrorNames;
IMPORT FrameManager;
IMPORT GenLists;
IMPORT LowLevel;
IMPORT MsColors;
IMPORT NdxTypes;
IMPORT SYSTEM;
IMPORT VStorage;
IMPORT VWindows;

VAR
  Initialized : BOOLEAN;

  PROCEDURE Init();
    BEGIN
      IF Initialized THEN
        RETURN;
      ELSE
        Initialized := TRUE;
      END;
      ErrorNames.Init();
      FrameManager.Init();
      GenLists.Init();
      LowLevel.Init();
      MsColors.Init();
      NdxTypes.Init();
      VStorage.Init();
      VWindows.Init();
    END Init;


 (* The purpose of ScrnTypes is to allow other parts of
    Repertoire to refer to data types in the screen system
    without importing all screen system's code where it isn't
    necessary.  We do include initialization procedures here,
    however, to prevent programs that do not use the screen
    system from doing dangerous things with improperly
    initialized or uninitialized data types.*)

  PROCEDURE InitDisplayFrame( VAR FrameRec : DisplayFrame;
      AssociatedWindow: VWindows.AWindowHandle );
        (* Initializes a DisplayFrame before first use.  *)
    VAR
      FrameSize: CARDINAL;
    BEGIN (* procedure InitDisplayFrame *)
      FrameSize := SYSTEM.TSIZE( DisplayFrameRec );
      VStorage.DosAlloc( FrameRec, FrameSize );
      FrameManager.AddWindow( AssociatedWindow );
        (*Note that we don't call FrameActivated here because
          FrameManager only begins to care about a frame once
          part of it becomes visible.*)
      WITH FrameRec^ DO
        ThisFrame[0] := 0C;
        WindowHandle := AssociatedWindow;
        PushedFrame := NIL;
          (*initialize the frame stack to empty*)
        ClearFirst := TRUE;
        ClearAfter := FALSE;
        FrameChanged := FALSE;
        EntryBox := VWindows.DoubleBox;
        ExitBox := VWindows.SingleBox;
        Caption[0] := 0C;
          (*changed in 1.5a*)
        SelfSharedWithFile := FALSE;
          (*changed in 1.5b*)
        GenLists.NewList( self );
        GenLists.NilList( DataList );
        GenLists.NilList( PromptList );
        GenLists.NilList( HelpList );
        GenLists.NilList( EdFieldList );
        GenLists.NilList( FieldList );
        GenLists.NilList( ImageList );
        GenLists.NilList( LinkedFrames );

        (*Now we set up the odd structure of the self; see
          the manual for explanation.*)
        GenLists.ListInsert( '', GenLists.StrCode, self, 1 );
          (*Insert null at position of the HelpFrame.*)
        GenLists.ListInsert( '', GenLists.StrCode, self, 2 );
          (*Insert null at position of the ParentFrame.*)
        GenLists.ListInsert( '', GenLists.StrCode, self, 3 );
          (*Insert null at position of the NormalNextFrame.*)
        GenLists.ListInsert( '', GenLists.StrCode, self, 4 );
          (*Insert null at position of the DisplayFrameRec.*)
        GenLists.ListInsert( DataList, GenLists.ListCode, self, 5 );
        GenLists.ListInsert( PromptList, GenLists.ListCode, self, 6 );
        GenLists.ListInsert( HelpList, GenLists.ListCode, self, 7 );
        GenLists.ListInsert( EdFieldList, GenLists.ListCode, self, 8 );
        GenLists.ListInsert( FieldList, GenLists.ListCode, self, 9 );
        GenLists.ListInsert( ImageList, GenLists.ListCode, self, 10 );
        GenLists.ListInsert( LinkedFrames, GenLists.ListCode, self, 11 );

        HelpFrame[0] := 0C;
        (* initialize the screen fields area to empty *)
        startcol := 0;
        startrow := 0;
        endcol := VWindows.EndCol(AssociatedWindow) - 1;
        endrow := VWindows.EndRow(AssociatedWindow) - 1;
        RowsScrolled := 0;
        ColsScrolled := 0;
        CurrentField := 0;
        VirtualWidth := 0;
        VirtualHeight := 0;
        headline := 0;
        action := 'W';
          (*Wait for any key.*)
        parent[0] := 0C;
        normlnext[0] := 0C;
          (* Now, initialize defaults for colors & mono attributes: *)
        normatrb := MsColors.plain;
        normfor := MsColors.lightgrey;
        normbak := MsColors.blue;
          (* Normal text *)
        bordatrb := MsColors.plain;
        bordfor := MsColors.lightcyan;
        bordbak := MsColors.blue;
          (* Border colors *)
        selatrb := MsColors.bold;
        selfor := MsColors.lightmagenta;
        selbak := MsColors.blue;
          (* Selected text *)
        pbatrb := MsColors.ReverseVideo;
        pbfor := MsColors.black;
        pbbak := MsColors.red;
          (* Pointer Bar Colors *)
        msgatrb := MsColors.plain;
        msgfor := MsColors.black;
        msgbak := MsColors.lightgrey;
          (* Message Box Colors *)
        promatrb := MsColors.ReverseVideo;
        promfor := MsColors.black;
        prombak := MsColors.cyan;
          (* Prompt Line Colors *)
        FromFile := NIL;
      END;
    END InitDisplayFrame;


  PROCEDURE InitField( VAR TheField: InputFieldRecord );
    BEGIN
      LowLevel.Fill( SYSTEM.ADR(TheField),
          SYSTEM.TSIZE(InputFieldRecord), 0C );
      TheField.typ := DispCode;
    END InitField;


BEGIN
  Initialized := FALSE;
  Init();
END ScrnTypes.