Fixes two issues in HiiFontProtocol->StringToImage() implementation on how to show string with wrap flag.

Signed-off-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12064 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 29 insertions, 7 deletions

diff --git a/MdeModulePkg/Universal/HiiDatabaseDxe/Font.c b/MdeModulePkg/Universal/HiiDatabaseDxe/Font.c
index ba937d2..4d2fcc0 100644
--- a/MdeModulePkg/Universal/HiiDatabaseDxe/Font.c
+++ b/MdeModulePkg/Universal/HiiDatabaseDxe/Font.c
@@ -1917,7 +1917,7 @@ HiiStringToImage (
       // When EFI_HII_OUT_FLAG_CLEAN_X is set, it will not draw a character

       // if its right-most on pixel cannot fit.

       //

-      if (Index > 0) {

+      if (Index > RowInfo[RowIndex].StartIndex) {

         //

         // Don't draw the last char on this row. And, don't draw the second last char (AdvanceX - Width - OffsetX).

         //

@@ -1929,10 +1929,11 @@ HiiStringToImage (
         RowInfo[RowIndex].BaselineOffset = BaseLineOffset;

       } else {

         //

-        // There is only one column and it can not be drawn so that return directly.

+        // There is no enough column to draw any character, so set current line width to zero.

+        // And go to draw Next line if LineBreak is set.

         //

-        Status = EFI_SUCCESS;

-        goto Exit;

+        RowInfo[RowIndex].LineWidth      = 0;

+        goto NextLine;

       }

     }

 

@@ -1941,7 +1942,9 @@ HiiStringToImage (
     // opportunity prior to a character whose right-most extent would exceed Width.

     // Search the right-most line-break opportunity here.

     //

-    if ((Flags & EFI_HII_OUT_FLAG_WRAP) == EFI_HII_OUT_FLAG_WRAP && StringPtr[NextIndex] != 0 && !LineBreak) {

+    if ((Flags & EFI_HII_OUT_FLAG_WRAP) == EFI_HII_OUT_FLAG_WRAP && 

+        (RowInfo[RowIndex].LineWidth + BltX > Image->Width || StringPtr[NextIndex] != 0) && 

+        !LineBreak) {

       if ((Flags & EFI_HII_IGNORE_LINE_BREAK) == 0) {

         LineWidth = RowInfo[RowIndex].LineWidth;

         for (Index1 = RowInfo[RowIndex].EndIndex; Index1 >= RowInfo[RowIndex].StartIndex; Index1--) {

@@ -1986,8 +1989,26 @@ HiiStringToImage (
       // behave as if EFI_HII_OUT_FLAG_CLEAN_X is set.

       //

       if (!LineBreak) {

-        Flags &= (~ (EFI_HII_OUT_FLAGS) EFI_HII_OUT_FLAG_WRAP);

-        Flags |= EFI_HII_OUT_FLAG_CLIP_CLEAN_X;

+        LineWidth = RowInfo[RowIndex].LineWidth;

+        Index1    = RowInfo[RowIndex].EndIndex;

+        if (LineWidth + BltX > Image->Width) {

+          if (Index1 > RowInfo[RowIndex].StartIndex) {

+            //

+            // Don't draw the last char on this row. And, don't draw the second last char (AdvanceX - Width - OffsetX).

+            //

+            LineWidth -= (UINTN) (Cell[Index1].Width + Cell[Index1].OffsetX);

+            LineWidth -= (UINTN) (Cell[Index1 - 1].AdvanceX - Cell[Index1 - 1].Width - Cell[Index1 - 1].OffsetX);

+            RowInfo[RowIndex].EndIndex       = Index1 - 1;

+            RowInfo[RowIndex].LineWidth      = LineWidth;

+          } else {

+            //

+            // There is no enough column to draw any character, so set current line width to zero.

+            // And go to draw Next line if LineBreak is set.

+            //

+            RowInfo[RowIndex].LineWidth = 0;

+            goto NextLine;

+          }

+        }

       }

     }

     

@@ -2117,6 +2138,7 @@ HiiStringToImage (
       }

     }

 

+NextLine:

     //

     // Recalculate the start point of X/Y axis to draw multi-lines with the order of top-to-down

     //