Refine the code to have same function to process the string info. Also update the logic to process special char.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13205 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 23 insertions, 191 deletions

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c b/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c
index c91ba48d21..7fb292592f 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c
@@ -988,200 +988,31 @@ ProcessHelpString (
   IN  UINTN   RowCount

   )

 {

-  UINTN BlockWidth;

-  UINTN AllocateSize;

-  //

-  // [PrevCurrIndex, CurrIndex) forms a range of a screen-line

-  //

-  UINTN CurrIndex;

-  UINTN PrevCurrIndex;

-  UINTN LineCount;

-  UINTN VirtualLineCount;

-  //

-  // GlyphOffset stores glyph width of current screen-line

-  //

-  UINTN GlyphOffset;

-  //

-  // GlyphWidth equals to 2 if we meet width directive

-  //

-  UINTN GlyphWidth;

-  //

-  // during scanning, we remember the position of last space character

-  // in case that if next word cannot put in current line, we could restore back to the position

-  // of last space character

-  // while we should also remmeber the glyph width of the last space character for restoring

-  //

-  UINTN LastSpaceIndex;

-  UINTN LastSpaceGlyphWidth;

-  //

-  // every time we begin to form a new screen-line, we should remember glyph width of single character

-  // of last line

-  //

-  UINTN LineStartGlyphWidth;

-  UINTN *IndexArray;

-  UINTN *OldIndexArray;

+  UINTN   Index;

+  CHAR16  *OutputString;

+  UINTN   TotalRowNum;

+  UINTN   CheckedNum;

 

-  BlockWidth = (UINTN) gHelpBlockWidth - 1;

+  TotalRowNum = 0;

+  CheckedNum  = 0;

 

   //

-  // every three elements of IndexArray form a screen-line of string:[ IndexArray[i*3], IndexArray[i*3+1] )

-  // IndexArray[i*3+2] stores the initial glyph width of single character. to save this is because we want

-  // to bring the width directive of the last line to current screen-line.

-  // e.g.: "\wideabcde ... fghi", if "fghi" also has width directive but is splitted to the next screen-line

-  // different from that of "\wideabcde", we should remember the width directive.

+  // Get row number of the String.

   //

-  AllocateSize  = 0x20;

-  IndexArray    = AllocatePool (AllocateSize * sizeof (UINTN) * 3);

-  ASSERT (IndexArray != NULL);

-

-  if (*FormattedString != NULL) {

-    FreePool (*FormattedString);

-    *FormattedString = NULL;

+  for (Index = 0; GetLineByWidth (StringPtr, (UINTN) gHelpBlockWidth - 1, &Index, &OutputString) != 0x0000; ) {

+    TotalRowNum ++;

+    FreePool (OutputString);

   }

-

-  for (PrevCurrIndex = 0, CurrIndex  = 0, LineCount   = 0, LastSpaceIndex = 0,

-       IndexArray[0] = 0, GlyphWidth = 1, GlyphOffset = 0, LastSpaceGlyphWidth = 1, LineStartGlyphWidth = 1;

-       (StringPtr[CurrIndex] != CHAR_NULL);

-       CurrIndex ++) {

-

-    if (LineCount == AllocateSize) {

-      AllocateSize += 0x10;

-      OldIndexArray  = IndexArray;

-      IndexArray = AllocatePool (AllocateSize * sizeof (UINTN) * 3);

-      ASSERT (IndexArray != NULL);

-

-      CopyMem (IndexArray, OldIndexArray, LineCount * sizeof (UINTN) * 3);

-      FreePool (OldIndexArray);

-    }

-    switch (StringPtr[CurrIndex]) {

-

-      case NARROW_CHAR:

-      case WIDE_CHAR:

-        GlyphWidth = ((StringPtr[CurrIndex] == WIDE_CHAR) ? 2 : 1);

-        if (CurrIndex == 0) {

-          LineStartGlyphWidth = GlyphWidth;

-        }

-        break;

-

-      //

-      // char is '\n'

-      // "\r\n" isn't handled here, handled by case CHAR_CARRIAGE_RETURN

-      //

-      case CHAR_LINEFEED:

-        //

-        // Store a range of string as a line

-        //

-        IndexArray[LineCount*3]   = PrevCurrIndex;

-        IndexArray[LineCount*3+1] = CurrIndex;

-        IndexArray[LineCount*3+2] = LineStartGlyphWidth;

-        LineCount ++;

-        //

-        // Reset offset and save begin position of line

-        //

-        GlyphOffset = 0;

-        LineStartGlyphWidth = GlyphWidth;

-        PrevCurrIndex = CurrIndex + 1;

-        break;

-

-      //

-      // char is '\r'

-      // "\r\n" and "\r" both are handled here

-      //

-      case CHAR_CARRIAGE_RETURN:

-        if (StringPtr[CurrIndex + 1] == CHAR_LINEFEED) {

-          //

-          // next char is '\n'

-          //

-          IndexArray[LineCount*3]   = PrevCurrIndex;

-          IndexArray[LineCount*3+1] = CurrIndex;

-          IndexArray[LineCount*3+2] = LineStartGlyphWidth;

-          LineCount ++;

-          CurrIndex ++;

-        }

-        GlyphOffset = 0;

-        LineStartGlyphWidth = GlyphWidth;

-        PrevCurrIndex = CurrIndex + 1;

-        break;

-

-      //

-      // char is space or other char

-      //

-      default:

-        GlyphOffset     += GlyphWidth;

-        if (GlyphOffset >= BlockWidth) {

-          if (LastSpaceIndex > PrevCurrIndex) {

-            //

-            // LastSpaceIndex points to space inside current screen-line,

-            // restore to LastSpaceIndex

-            // (Otherwise the word is too long to fit one screen-line, just cut it)

-            //

-            CurrIndex  = LastSpaceIndex;

-            GlyphWidth = LastSpaceGlyphWidth;

-          } else if (GlyphOffset > BlockWidth) {

-            //

-            // the word is too long to fit one screen-line and we don't get the chance

-            // of GlyphOffset == BlockWidth because GlyphWidth = 2

-            //

-            CurrIndex --;

-          }

-

-          IndexArray[LineCount*3]   = PrevCurrIndex;

-          IndexArray[LineCount*3+1] = CurrIndex + 1;

-          IndexArray[LineCount*3+2] = LineStartGlyphWidth;

-          LineStartGlyphWidth = GlyphWidth;

-          LineCount ++;

-          //

-          // Reset offset and save begin position of line

-          //

-          GlyphOffset                 = 0;

-          PrevCurrIndex               = CurrIndex + 1;

-        }

-

-        //

-        // LastSpaceIndex: remember position of last space

-        //

-        if (StringPtr[CurrIndex] == CHAR_SPACE) {

-          LastSpaceIndex      = CurrIndex;

-          LastSpaceGlyphWidth = GlyphWidth;

-        }

-        break;

-    }

-  }

-

-  if (GlyphOffset > 0) {

-    IndexArray[LineCount*3]   = PrevCurrIndex;

-    IndexArray[LineCount*3+1] = CurrIndex;

-    IndexArray[LineCount*3+2] = GlyphWidth;

-    LineCount ++;

-  }

-

-  if (LineCount == 0) {

-    //

-    // in case we meet null string

-    //

-    IndexArray[0] = 0;

-    IndexArray[1] = 1;

-    //

-    // we assume null string's glyph width is 1

-    //

-    IndexArray[1] = 1;

-    LineCount ++;

-  }

-

-  VirtualLineCount = RowCount * (LineCount / RowCount + (LineCount % RowCount > 0));

-  *FormattedString = AllocateZeroPool (VirtualLineCount * (BlockWidth + 1) * sizeof (CHAR16) * 2);

+  

+  *FormattedString = AllocateZeroPool (TotalRowNum * gHelpBlockWidth * sizeof (CHAR16) * 2);

   ASSERT (*FormattedString != NULL);

 

-  for (CurrIndex = 0; CurrIndex < LineCount; CurrIndex ++) {

-    *(*FormattedString + CurrIndex * 2 * (BlockWidth + 1)) = (CHAR16) ((IndexArray[CurrIndex*3+2] == 2) ? WIDE_CHAR : NARROW_CHAR);

-    StrnCpy (

-      *FormattedString + CurrIndex * 2 * (BlockWidth + 1) + 1,

-      StringPtr + IndexArray[CurrIndex*3],

-      IndexArray[CurrIndex*3+1]-IndexArray[CurrIndex*3]

-      );

+  for (Index = 0; GetLineByWidth (StringPtr, (UINTN) gHelpBlockWidth - 1, &Index, &OutputString) != 0x0000; CheckedNum ++) {

+    CopyMem (*FormattedString + CheckedNum * gHelpBlockWidth * sizeof (CHAR16), OutputString, gHelpBlockWidth * sizeof (CHAR16));

+    FreePool (OutputString);

   }

 

-  FreePool (IndexArray);

+  ASSERT (CheckedNum == TotalRowNum);

 

-  return LineCount;

+  return TotalRowNum; 

 }

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
index 82a82e5115..6999f625db 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Ui.c
@@ -1308,6 +1308,7 @@ GetWidth (
 /**

   Will copy LineWidth amount of a string in the OutputString buffer and return the

   number of CHAR16 characters that were copied into the OutputString buffer.

+  In the code, it deals \r,\n,\r\n same as \n\r, also it not process the \r or \g.

 

   @param  InputString            String description for this option.

   @param  LineWidth              Width of the desired string to extract in CHAR16

@@ -1353,9 +1354,9 @@ GetLineByWidth (
    }

 

     //

-    // Fast-forward the string and see if there is a carriage-return in the string

+    // Fast-forward the string and see if there is a carriage-return or linefeed in the string

     //

-    for (; (InputString[*Index + Count2] != CHAR_CARRIAGE_RETURN) && (Count2 != LineWidth); Count2++)

+    for (; (InputString[*Index + Count2] != CHAR_LINEFEED) && (InputString[*Index + Count2] != CHAR_CARRIAGE_RETURN) && (Count2 != LineWidth); Count2++)

       ;

 

     //

@@ -1391,10 +1392,10 @@ GetLineByWidth (
     CopyMem (*OutputString, &InputString[*Index], LineWidth * 2);

 

     //

-    // If currently pointing to a space, increment the index to the first non-space character

+    // If currently pointing to a space or carriage-return or linefeed, increment the index to the first non-space character

     //

     for (;

-         (InputString[*Index + LineWidth] == CHAR_SPACE) || (InputString[*Index + LineWidth] == CHAR_CARRIAGE_RETURN);

+         (InputString[*Index + LineWidth] == CHAR_SPACE) || (InputString[*Index + LineWidth] == CHAR_CARRIAGE_RETURN)|| (InputString[*Index + LineWidth] == CHAR_LINEFEED);

          (*Index)++

         )

       ;

@@ -2923,7 +2924,7 @@ UiDisplayMenu (
       // Print the help string info.

       //

       if (!MultiHelpPage) {

-        for (Index = 0; Index < RowCount; Index++) {

+        for (Index = 0; Index < HelpLine; Index++) {

           PrintStringAt (

             LocalScreen.RightColumn - gHelpBlockWidth,

             Index + TopRow,