private void AppendTextSegmentCharWrap([NotNull] InlineSegment sourceSeg)
{
_curSeg = InlineSegment.CreateWithBuilder(AvailableWidth);
for (int i = 0; i < sourceSeg.Text.Length; i++)
{
CharInfo c = CharInfo.From(sourceSeg.Text[i]);
Debug.Assert(_curLineLength == GetLineLength(_curLine) + _curSeg.TextLength);
if (!c.IsZeroWidth && _curLineLength >= AvailableWidth)
{
// Proceed as if the current char is '\n', repeat with current char on the next iteration
// (unless current char is actually '\n', then it is consumed on wrap).
if (!c.IsNewLine)
{
i--;
_curLineLength--;
}
c = CharInfo.From('\n');
}
if (c.IsNewLine)
{
StartNewLine();
}
else if (!c.IsZeroWidth)
{
_curSeg.TextBuilder.Append(c);
_curLineLength++;
}
}
AppendCurrentSegment();
}
private void AppendTextSegmentWordWrap([NotNull] InlineSegment sourceSeg, bool isSpaceOnly)
{
_curSeg = InlineSegment.CreateWithBuilder(AvailableWidth);
_segPos = 0;
for (int i = 0; i < sourceSeg.Text.Length; i++)
{
CharInfo c = CharInfo.From(sourceSeg.Text[i]);
Debug.Assert(_curLineLength == GetLineLength(_curLine) + _curSeg.TextLength);
bool canAddChar = _curLineLength < AvailableWidth;
if (!canAddChar && !c.IsZeroWidth)
{
if (c.IsConsumedOnWrap)
{
c = CharInfo.From('\n');
}
else if (_wrapPos == -1)
{
c = CharInfo.From('\n');
// Repeat with current char on the next iteration
i--;
_curLineLength--;
_segPos--;
}
else if (!c.IsNewLine)
{
_curLine.Add(_curSeg);
WrapLine();
}
}
bool canWrap = isSpaceOnly
? c.IsWrappableSpace && (canAddChar || c.IsZeroWidth)
: c.IsWrappable && (canAddChar || c.IsZeroWidth && !c.IsSoftHyphen);
if (canWrap)
{
_wrapPos = _segPos;
_wrapChar = c;
_wrapSegmentIndex = _curLine.Count;
}
if (c.IsNewLine)
{
StartNewLine();
}
else if (!c.IsZeroWidth)
{
_curSeg.TextBuilder.Append(c);
_curLineLength++;
_segPos++;
}
}
AppendCurrentSegment();
}
private void AppendTextSegmentNoWrap([NotNull] InlineSegment sourceSeg)
{
_curSeg = InlineSegment.CreateWithBuilder(AvailableWidth);
for (int i = 0; i < sourceSeg.Text.Length; i++)
{
CharInfo c = CharInfo.From(sourceSeg.Text[i]);
if (c.IsNewLine)
{
StartNewLine();
}
else if (!c.IsZeroWidth && _curLineLength < AvailableWidth)
{
_curSeg.TextBuilder.Append(c);
_curLineLength++;
}
}
AppendCurrentSegment();
}