internal TextEditRow LayoutRow(int startIndex, int?width)
{
var r = new TextEditRow();
if (string.IsNullOrEmpty(_text))
{
return(r);
}
_stringBuilder.Clear();
int? lastBreakPosition = null;
Vector2?lastBreakMeasure = null;
for (var i = startIndex; i < _text.Length; ++i)
{
var c = Text[i];
_stringBuilder.Append(c);
Vector2 sz = Vector2.Zero;
if (c != '\n')
{
sz = Font.MeasureString(_stringBuilder);
}
else
{
sz = new Vector2(r.x1 + NewLineWidth, Math.Max(r.ymax, CrossEngineStuff.LineSpacing(_font)));
}
if (width != null && c == '\n')
{
// Break right here
++r.num_chars;
r.x1 = sz.X;
r.ymax = sz.Y;
r.baseline_y_delta = sz.Y;
break;
}
if (width != null && sz.X > width.Value)
{
if (lastBreakPosition != null)
{
r.num_chars = lastBreakPosition.Value - startIndex;
}
if (lastBreakMeasure != null)
{
r.x1 = lastBreakMeasure.Value.X;
r.ymax = lastBreakMeasure.Value.Y;
r.baseline_y_delta = lastBreakMeasure.Value.Y;
}
break;
}
if (char.IsWhiteSpace(c))
{
lastBreakPosition = i + 1;
lastBreakMeasure = sz;
}
++r.num_chars;
r.x1 = sz.X;
r.ymax = sz.Y;
r.baseline_y_delta = sz.Y;
}
return(r);
}
internal TextEditRow LayoutRow(int startIndex, int?width)
{
var r = new TextEditRow();
if (string.IsNullOrEmpty(_text))
{
return(r);
}
_stringBuilder.Clear();
int? lastBreakPosition = null;
Point?lastBreakMeasure = null;
for (var i = startIndex; i < _text.Length; ++i)
{
var c = _displayText[i];
_stringBuilder.Append(c);
var sz = Point.Zero;
if (c != '\n')
{
var v = Font.MeasureString(_stringBuilder);
sz = new Point((int)v.X, (int)v.Y);
}
else
{
sz = new Point(r.X + NewLineWidth, Math.Max(r.Y, CrossEngineStuff.LineSpacing(_font)));
// Break right here
++r.CharsCount;
r.X = sz.X;
r.Y = sz.Y;
break;
}
if (width != null && sz.X > width.Value)
{
if (lastBreakPosition != null)
{
r.CharsCount = lastBreakPosition.Value - startIndex;
}
if (lastBreakMeasure != null)
{
r.X = lastBreakMeasure.Value.X;
r.Y = lastBreakMeasure.Value.Y;
}
break;
}
if (char.IsWhiteSpace(c))
{
lastBreakPosition = i + 1;
lastBreakMeasure = sz;
}
++r.CharsCount;
r.X = sz.X;
r.Y = sz.Y;
}
return(r);
}
