diff options
Diffstat (limited to 'MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c')
| -rw-r--r-- | MdeModulePkg/Universal/SetupBrowserDxe/ProcessOptions.c | 203 |
1 files changed, 17 insertions, 186 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;
}
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