void
BTextView::LineBuffer::RemoveLineRange(int32 fromOffset, int32 toOffset)
{
int32 fromLine = OffsetToLine(fromOffset);
int32 toLine = OffsetToLine(toOffset);
int32 count = toLine - fromLine;
if (count > 0)
RemoveLines(fromLine + 1, count);
BumpOffset(fromOffset - toOffset, fromLine + 1);
}
uint32 TTextLayout::OffsetToPoint(STextOffset offset, TPoint& point) const
{
uint32 line = OffsetToLine(offset);
ASSERT(line < fLineCount);
LineRec& rec = fLineBreaks[line];
point.v = rec.vertOffset + rec.ascent + fInset.v;
if (offset == rec.textOffset)
point.h = fInset.h;
else
point.h = MeasureText(fText + rec.textOffset, offset - rec.textOffset, 0) + fInset.h;
return line;
}