public TextElementLine EndLine()
{
TextElementLine line = (TextElementLine)ContainerStack.Pop();
ContainerStack.Peek().Add(line);
return(line);
}
public IEnumerable <ITextElement> Split(float width)
{
LinkedList <ITextElement> backlog = new LinkedList <ITextElement>(Contents);
TextElementLine a = new TextElementLine(Alignment);
TextElementLine b = new TextElementLine(Alignment);
float aWidth = 0;
while (backlog.Any())
{
var element = backlog.PopFirst();
float elementWidth = element.Width;
if (b.Contents.Any())
{
b.Add(element);
}
else if (aWidth + elementWidth > width)
{
if (elementWidth > width && aWidth < width) //Special case, word would never fit!
{
if (element is ITextSplitable splitable && !element.IsUnit) //Only non-units can be split
{
var splitResult = splitable.Split(width - aWidth).ToList();
if (splitResult.First().Width <= 0)
{
aWidth = width;
}
foreach (var split in splitResult.Reverse <ITextElement>())
{
if (split.Width > 0)
{
backlog.AddFirst(split);
}
}
}
continue;
}
else
{
b.Add(element);
}
}
else
{
a.Add(element);
}
aWidth += elementWidth;
}
a.Trim();
b.Trim();
yield return(a);
if (b.Contents.Any())
{
yield return(b);
}
}
public void StartLine(LineAlignment alignment)
{
var line = new TextElementLine(alignment);
ContainerStack.Push(line);
}
