audk/ShellPkg/Application/Shell/FileHandleInternal.h

/** @file
  internal worker functions for FileHandleWrappers to use

  Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _FILE_HANDLE_INTERNAL_HEADER_
#define _FILE_HANDLE_INTERNAL_HEADER_

/**
  Move the cursor position one character backward.

  @param[in] LineLength       Length of a line. Get it by calling QueryMode
  @param[in, out] Column      Current column of the cursor position
  @param[in, out] Row         Current row of the cursor position
**/
VOID
MoveCursorBackward (
  IN     UINTN                   LineLength,
  IN OUT UINTN                   *Column,
  IN OUT UINTN                   *Row
  );

/**
  Move the cursor position one character forward.

  @param[in] LineLength       Length of a line.
  @param[in] TotalRow         Total row of a screen
  @param[in, out] Column      Current column of the cursor position
  @param[in, out] Row         Current row of the cursor position
**/
VOID
MoveCursorForward (
  IN     UINTN                   LineLength,
  IN     UINTN                   TotalRow,
  IN OUT UINTN                   *Column,
  IN OUT UINTN                   *Row
  );

/**
  Prints out each previously typed command in the command list history log.

  When each screen is full it will pause for a key before continuing.

  @param[in] TotalCols    How many columns are on the screen
  @param[in] TotalRows    How many rows are on the screen
  @param[in] StartColumn  which column to start at
**/
VOID
PrintCommandHistory (
  IN CONST UINTN TotalCols,
  IN CONST UINTN TotalRows,
  IN CONST UINTN StartColumn
  );

#endif //_FILE_HANDLE_INTERNAL_HEADER_