presentation.c

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/*++
Copyright (c) 2004 - 2006, Intel Corporation                                                         
All rights reserved. This program and the accompanying materials                          
are licensed and made available under the terms and conditions of the BSD License         
which accompanies this distribution.  The full text of the license may be found at        
http://opensource.org/licenses/bsd-license.php                                            
                                                                                          
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

Module Name:
  Presentation.c

Abstract:

  Some presentation routines.

--*/

#include "Setup.h"
#include "Ui.h"

VOID
ClearLines (
  UINTN                                       LeftColumn,
  UINTN                                       RightColumn,
  UINTN                                       TopRow,
  UINTN                                       BottomRow,
  UINTN                                       TextAttribute
  )
{
  CHAR16  *Buffer;
  UINTN   Row;

  //
  // For now, allocate an arbitrarily long buffer
  //
  Buffer = EfiLibAllocateZeroPool (0x10000);
  ASSERT (Buffer != NULL);

  //
  // Set foreground and background as defined
  //
  gST->ConOut->SetAttribute (gST->ConOut, TextAttribute);

  //
  // Much faster to buffer the long string instead of print it a character at a time
  //
  SetUnicodeMem (Buffer, RightColumn - LeftColumn, L' ');

  //
  // Clear the desired area with the appropriate foreground/background
  //
  for (Row = TopRow; Row <= BottomRow; Row++) {
    PrintStringAt (LeftColumn, Row, Buffer);
  }

  gST->ConOut->SetCursorPosition (gST->ConOut, LeftColumn, TopRow);

  gBS->FreePool (Buffer);
  return ;
}

VOID
NewStrCat (
  CHAR16                                      *Destination,
  CHAR16                                      *Source
  )
{
  UINTN Length;

  for (Length = 0; Destination[Length] != 0; Length++)
    ;

  //
  // We now have the length of the original string
  // We can safely assume for now that we are concatenating a narrow value to this string.
  // For instance, the string is "XYZ" and cat'ing ">"
  // If this assumption changes, we need to make this routine a bit more complex
  //
  Destination[Length] = NARROW_CHAR;
  Length++;

  EfiStrCpy (Destination + Length, Source);
}

UINTN
GetStringWidth (
  CHAR16                                      *String
  )
{
  UINTN Index;
  UINTN Count;
  UINTN IncrementValue;

  Index           = 0;
  Count           = 0;
  IncrementValue  = 1;

  do {
    //
    // Advance to the null-terminator or to the first width directive
    //
    for (;
         (String[Index] != NARROW_CHAR) && (String[Index] != WIDE_CHAR) && (String[Index] != 0);
         Index++, Count = Count + IncrementValue
        )
      ;

    //
    // We hit the null-terminator, we now have a count
    //
    if (String[Index] == 0) {
      break;
    }
    //
    // We encountered a narrow directive - strip it from the size calculation since it doesn't get printed
    // and also set the flag that determines what we increment by.(if narrow, increment by 1, if wide increment by 2)
    //
    if (String[Index] == NARROW_CHAR) {
      //
      // Skip to the next character
      //
      Index++;
      IncrementValue = 1;
    } else {
      //
      // Skip to the next character
      //
      Index++;
      IncrementValue = 2;
    }
  } while (String[Index] != 0);

  //
  // Increment by one to include the null-terminator in the size
  //
  Count++;

  return Count * sizeof (CHAR16);
}

VOID
DisplayPageFrame (
  VOID
  )
{
  UINTN             Index;
  UINT8             Line;
  UINT8             Alignment;
  CHAR16            Character;
  CHAR16            *Buffer;
  CHAR16            *StrFrontPageBanner;
  SCREEN_DESCRIPTOR LocalScreen;
  UINTN             Row;

  EfiZeroMem (&LocalScreen, sizeof (SCREEN_DESCRIPTOR));
  gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &LocalScreen.RightColumn, &LocalScreen.BottomRow);
  ClearLines (0, LocalScreen.RightColumn, 0, LocalScreen.BottomRow, KEYHELP_BACKGROUND);

  EfiCopyMem (&LocalScreen, &gScreenDimensions, sizeof (SCREEN_DESCRIPTOR));

  //
  // For now, allocate an arbitrarily long buffer
  //
  Buffer = EfiLibAllocateZeroPool (0x10000);
  ASSERT (Buffer != NULL);

  Character = BOXDRAW_HORIZONTAL;

  for (Index = 0; Index + 2 < (LocalScreen.RightColumn - LocalScreen.LeftColumn); Index++) {
    Buffer[Index] = Character;
  }

  if (gClassOfVfr == EFI_FRONT_PAGE_SUBCLASS) {
    //
    //    ClearLines(0, LocalScreen.RightColumn, 0, BANNER_HEIGHT-1, BANNER_TEXT | BANNER_BACKGROUND);
    //
    ClearLines (
      LocalScreen.LeftColumn,
      LocalScreen.RightColumn,
      LocalScreen.TopRow,
      FRONT_PAGE_HEADER_HEIGHT - 1 + LocalScreen.TopRow,
      BANNER_TEXT | BANNER_BACKGROUND
      );
    //
    //    for (Line = 0; Line < BANNER_HEIGHT; Line++) {
    //
    for (Line = (UINT8) LocalScreen.TopRow; Line < BANNER_HEIGHT + (UINT8) LocalScreen.TopRow; Line++) {
      //
      //      for (Alignment = 0; Alignment < BANNER_COLUMNS; Alignment++) {
      //
      for (Alignment = (UINT8) LocalScreen.LeftColumn;
           Alignment < BANNER_COLUMNS + (UINT8) LocalScreen.LeftColumn;
           Alignment++
          ) {
        if (BannerData->Banner[Line - (UINT8) LocalScreen.TopRow][Alignment - (UINT8) LocalScreen.LeftColumn] != 0x0000) {
          StrFrontPageBanner = GetToken (
                                BannerData->Banner[Line - (UINT8) LocalScreen.TopRow][Alignment - (UINT8) LocalScreen.LeftColumn],
                                FrontPageHandle
                                );
        } else {
          continue;
        }

        switch (Alignment - LocalScreen.LeftColumn) {
        case 0:
          //
          // Handle left column
          //
          PrintStringAt (LocalScreen.LeftColumn, Line, StrFrontPageBanner);
          break;

        case 1:
          //
          // Handle center column
          //
          PrintStringAt (
            LocalScreen.LeftColumn + (LocalScreen.RightColumn - LocalScreen.LeftColumn) / 3,
            Line,
            StrFrontPageBanner
            );
          break;

        case 2:
          //
          // Handle right column
          //
          PrintStringAt (
            LocalScreen.LeftColumn + (LocalScreen.RightColumn - LocalScreen.LeftColumn) * 2 / 3,
            Line,
            StrFrontPageBanner
            );
          break;
        }

        gBS->FreePool (StrFrontPageBanner);
      }
    }
  }

  ClearLines (
    LocalScreen.LeftColumn,
    LocalScreen.RightColumn,
    LocalScreen.BottomRow - STATUS_BAR_HEIGHT - FOOTER_HEIGHT,
    LocalScreen.BottomRow - STATUS_BAR_HEIGHT - 1,
    KEYHELP_TEXT | KEYHELP_BACKGROUND
    );

  if (gClassOfVfr != EFI_FRONT_PAGE_SUBCLASS) {
    ClearLines (
      LocalScreen.LeftColumn,
      LocalScreen.RightColumn,
      LocalScreen.TopRow,
      LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT - 1,
      TITLE_TEXT | TITLE_BACKGROUND
      );
    //
    // Print Top border line
    // +------------------------------------------------------------------------------+
    // ?                                                                             ?
    // +------------------------------------------------------------------------------+
    //
    Character = BOXDRAW_DOWN_RIGHT;

    PrintChar (Character);
    PrintString (Buffer);

    Character = BOXDRAW_DOWN_LEFT;
    PrintChar (Character);

    Character = BOXDRAW_VERTICAL;
    for (Row = LocalScreen.TopRow + 1; Row <= LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT - 2; Row++) {
      PrintCharAt (LocalScreen.LeftColumn, Row, Character);
      PrintCharAt (LocalScreen.RightColumn - 1, Row, Character);
    }

    Character = BOXDRAW_UP_RIGHT;
    PrintCharAt (LocalScreen.LeftColumn, LocalScreen.TopRow + NONE_FRONT_PAGE_HEADER_HEIGHT - 1, Character);
    PrintString (Buffer);

    Character = BOXDRAW_UP_LEFT;
    PrintChar (Character);

    if (gClassOfVfr == EFI_SETUP_APPLICATION_SUBCLASS) {
      //
      // Print Bottom border line
      // +------------------------------------------------------------------------------+
      // ?                                                                             ?
      // +------------------------------------------------------------------------------+
      //
      Character = BOXDRAW_DOWN_RIGHT;
      PrintCharAt (LocalScreen.LeftColumn, LocalScreen.BottomRow - STATUS_BAR_HEIGHT - FOOTER_HEIGHT, Character);

      PrintString (Buffer);

      Character = BOXDRAW_DOWN_LEFT;
      PrintChar (Character);
      Character = BOXDRAW_VERTICAL;
      for (Row = LocalScreen.BottomRow - STATUS_BAR_HEIGHT - FOOTER_HEIGHT + 1;
           Row <= LocalScreen.BottomRow - STATUS_BAR_HEIGHT - 2;
           Row++
          ) {
        PrintCharAt (LocalScreen.LeftColumn, Row, Character);
        PrintCharAt (LocalScreen.RightColumn - 1, Row, Character);
      }

      Character = BOXDRAW_UP_RIGHT;
      PrintCharAt (LocalScreen.LeftColumn, LocalScreen.BottomRow - STATUS_BAR_HEIGHT - 1, Character);

      PrintString (Buffer);

      Character = BOXDRAW_UP_LEFT;
      PrintChar (Character);
    }
  }

  gBS->FreePool (Buffer);

}

/*
+------------------------------------------------------------------------------+
?F2=Previous Page                 Setup Page                                  ?
+------------------------------------------------------------------------------+

    















+------------------------------------------------------------------------------+
?F1=Scroll Help                 F9=Reset to Defaults        F10=Save and Exit ?
| ^"=Move Highlight          <Spacebar> Toggles Checkbox   Esc=Discard Changes |
+------------------------------------------------------------------------------+
*/
UI_MENU_OPTION *
DisplayForm (
  OUT UI_MENU_OPTION              *Selection,
  IN  UINT16                      FormHandle,
  IN  UINT16                      TitleToken,
  IN  EFI_FORM_TAGS               FormTags,
  IN  EFI_FILE_FORM_TAGS          *FileFormTagsHead,
  IN  UINT8                       *CallbackData
  )
{
  CHAR16              *StringPtr;
  UINTN               Index;
  UINTN               Count;
  UINT16              MenuItemCount;
  EFI_HII_HANDLE      Handle;
  UINT16              FormId;
  STRING_REF          String;
  EFI_FILE_FORM_TAGS  *FileFormTags;
  BOOLEAN             SuppressIf;
  BOOLEAN             Suppress;
  BOOLEAN             GrayOut;
  BOOLEAN             Conditional;
  SCREEN_DESCRIPTOR   LocalScreen;