internal ChunkInfo LayoutRow(int startIndex, int?width, bool parseCommands)
{
var r = new ChunkInfo
{
StartIndex = startIndex,
LineEnd = true
};
if (string.IsNullOrEmpty(_text))
{
return(r);
}
_stringBuilder.Clear();
int? lastBreakPosition = null;
Point?lastBreakMeasure = null;
for (var i = r.StartIndex; i < _text.Length; ++i)
{
var c = _text[i];
if (SupportsCommands && c == '\\')
{
if (i < _text.Length - 2 && _text[i + 1] == 'c' && _text[i + 2] == '[')
{
// Find end
var startPos = i + 3;
var j = _text.IndexOf(']', startPos);
if (j != -1)
{
// Found
if (i > r.StartIndex)
{
// Break right here, as next chunk has another color
r.LineEnd = false;
return(r);
}
if (parseCommands)
{
r.Color = ColorStorage.FromName(_text.Substring(startPos, j - startPos));
}
r.StartIndex = j + 1;
i = j;
continue;
}
}
}
_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 - r.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);
}
internal ChunkInfo LayoutRow(int startIndex, int?width, bool parseCommands)
{
var r = new ChunkInfo {
StartIndex = startIndex, LineEnd = true
};
if (string.IsNullOrEmpty(_text))
{
return(r);
}
_stringBuilder.Clear();
int? lastBreakPosition = null;
Point?lastBreakMeasure = null;
for (var i = r.StartIndex; i < _text.Length; ++i)
{
var c = _text[i];
if (char.IsHighSurrogate(c))
{
_stringBuilder.Append(c);
++r.CharsCount;
continue;
}
if (SupportsCommands && c == '\\')
{
if (i < _text.Length - 2)
{
char commandChar = _text[i + 1];
if (_text[i + 2] == '[')
{
// Find parameter end
var parameterStartIndex = i + 3;
var parameterEndIndex = _text.IndexOf(']', parameterStartIndex);
if (parameterEndIndex != -1)
{
// Found
if (i > r.StartIndex)
{
// Break right here, as next chunk is a command block
if (commandChar == SpriteCommandChar)
{
// sprites have width, will this one fit on our line?
if (width != null)
{
var spriteId = SpriteChunk.GetSpriteId(_text, parameterStartIndex, parameterEndIndex);
var size = TrollskogIntegration.MeasureSprite(spriteId, _font);
r.LineEnd = (r.X + size.X) > width.Value;
}
}
else
{
r.LineEnd = false;
}
return(r);
}
if (parseCommands && commandChar == ColorCommandChar)
{
r.Color = ColorStorage.FromName(_text.Substring(parameterStartIndex, parameterEndIndex - parameterStartIndex));
}
else if (commandChar == SpriteCommandChar)
{
// Break because this is a sprite chunk
var spriteId = SpriteChunk.GetSpriteId(_text, parameterStartIndex, parameterEndIndex);
var size = TrollskogIntegration.MeasureSprite(spriteId, _font);
r.LineEnd = parameterEndIndex == _text.Length - 1;
r.X = size.X;
r.Y = size.Y;
r.SpriteId = spriteId;
r.CharsCount = parameterEndIndex - r.StartIndex + 1;
return(r);
}
}
r.StartIndex = parameterEndIndex + 1;
i = parameterEndIndex;
continue;
}
if (commandChar == NewlineCommandChar)
{
Point sz2 = new(r.X + NewLineWidth, Math.Max(r.Y, _font.FontSize));
// Break right here, consuming 2 chars '\\' and 'n'
r.SkipChars = 2;
r.CharsCount += 2;
r.LineEnd = true;
r.X = sz2.X;
r.Y = sz2.Y;
break;
}
}
}
_stringBuilder.Append(c);
Point sz;
if (c != '\n')
{
var v = Font.MeasureString(_stringBuilder);
sz = new Point((int)v.X, _font.FontSize);
}
else
{
sz = new Point(r.X + NewLineWidth, Math.Max(r.Y, _font.FontSize));
// 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 - r.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);
}
