EditTitleBar.c

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#include "EditTitleBar.h"
#include "UefiShellDebug1CommandsLib.h"
 
CHAR16  *Title = NULL;
 
EFI_STATUS
MainTitleBarInit (
  CONST CHAR16  *Prompt
  )
{
  SHELL_FREE_NON_NULL (Title);
  if (Prompt == NULL) {
    Title = CatSPrint (NULL, L"");
  } else {
    //
    // set Title
    //
    Title = CatSPrint (NULL, L"%s", Prompt);
  }
 
  if (Title == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }
 
  return EFI_SUCCESS;
}
 
VOID
MainTitleBarCleanup (
  VOID
  )
{
  SHELL_FREE_NON_NULL (Title);
  Title = NULL;
}
 
typedef struct {
  UINT32    Foreground : 4;
  UINT32    Background : 4;
} TITLE_BAR_COLOR_ATTRIBUTES;
 
typedef union {
  TITLE_BAR_COLOR_ATTRIBUTES    Colors;
  UINTN                         Data;
} TITLE_BAR_COLOR_UNION;
 
EFI_STATUS
MainTitleBarRefresh (
  IN CONST CHAR16          *FileName OPTIONAL,
  IN CONST EDIT_FILE_TYPE  FileType,
  IN CONST BOOLEAN         ReadOnly,
  IN CONST BOOLEAN         Modified,
  IN CONST UINTN           LastCol,
  IN CONST UINTN           LastRow,
  IN CONST UINTN           Offset,
  IN CONST UINTN           Size
  )
{
  TITLE_BAR_COLOR_UNION  Orig;
  TITLE_BAR_COLOR_UNION  New;
  CONST CHAR16           *FileNameTmp;
  INTN                   TempInteger;
 
  //
  // backup the old screen attributes
  //
  Orig.Data             = gST->ConOut->Mode->Attribute;
  New.Data              = 0;
  New.Colors.Foreground = Orig.Colors.Background & 0xF;
  New.Colors.Background = Orig.Colors.Foreground & 0x7;
 
  gST->ConOut->SetAttribute (gST->ConOut, New.Data & 0x7F);
 
  //
  // clear the title line
  //
  EditorClearLine (1, LastCol, LastRow);
 
  if (Title != NULL) {
    //
    // print the new title bar prefix
    //
    ShellPrintEx (
      0,
      0,
      L"%s ",
      Title
      );
  }
 
  if (FileName == NULL) {
    gST->ConOut->SetAttribute (gST->ConOut, Orig.Data);
    return EFI_SUCCESS;
  }
 
  //
  // First Extract the FileName from fullpath
  //
  FileNameTmp = FileName;
  for (TempInteger = StrLen (FileNameTmp) - 1; TempInteger >= 0; TempInteger--) {
    if (FileNameTmp[TempInteger] == L'\\') {
      break;
    }
  }
 
  FileNameTmp = FileNameTmp + TempInteger + 1;
 
  //
  // the space for file name is 20 characters
  //
  if (StrLen (FileNameTmp) <= 20) {
    ShellPrintEx (-1, -1, L"%s   ", FileNameTmp);
    for (TempInteger = StrLen (FileNameTmp); TempInteger < 20; TempInteger++) {
      ShellPrintEx (-1, -1, L" ");
    }
  } else {
    for (TempInteger = 0; TempInteger < 17; TempInteger++) {
      ShellPrintEx (-1, -1, L"%c", FileNameTmp[TempInteger]);
    }
 
    //
    // print "..."
    //
    ShellPrintEx (-1, -1, L"...   ");
  }
 
  //
  // print file type field
  //
  switch (FileType) {
    case FileTypeAscii:
    case FileTypeUnicode:
      if (FileType == FileTypeAscii) {
        ShellPrintEx (-1, -1, L"     ASCII     ");
      } else {
        ShellPrintEx (-1, -1, L"     UNICODE   ");
      }
 
      //
      // print read-only field for text files
      //
      if (ReadOnly) {
        ShellPrintEx (-1, -1, L"ReadOnly   ");
      } else {
        ShellPrintEx (-1, -1, L"           ");
      }
 
      break;
    case FileTypeDiskBuffer:
    case FileTypeMemBuffer:
      //
      // Print the offset.
      //
      ShellPrintEx (-1, -1, L"Offset %X | Size %X", Offset, Size);
    case FileTypeFileBuffer:
      break;
    default:
      break;
  }
 
  //
  // print modified field
  //
  if (Modified) {
    ShellPrintEx (-1, -1, L"Modified");
  }
 
  //
  // restore the old attribute
  //
  gST->ConOut->SetAttribute (gST->ConOut, Orig.Data);
 
  return EFI_SUCCESS;
}