public static Tuple <ConsoleSegment, ConsoleSegment> Split(ConsoleSegment segment, int lengthOfFirst)
{
var first = new ConsoleSegment(segment.Text.Substring(0, lengthOfFirst), segment.ForegroundColor, segment.BackgroundColor);
var second = new ConsoleSegment(segment.Text.Substring(lengthOfFirst), segment.ForegroundColor, segment.BackgroundColor);
return(Tuple.Create(first, second));
}
public void InsertSegment(ConsoleSegment segment, int cursor)
{
if (segments.Count == 0)
{
segments.AddLast(segment);
return;
}
int cursorTemp = cursor;
LinkedListNode <ConsoleSegment> node = segments.First;
while (true)
{
if (node.Value.Text.Length == cursor)
{
segments.AddLast(segment);
return;
}
else if (node.Value.Text.Length > cursor)
{
if (cursor > 0)
{
var split = ConsoleSegment.Split(node.Value, cursor);
segments.AddBefore(node, split.Item1);
var next = segments.AddAfter(node, split.Item2);
segments.Remove(node);
node = next;
cursor = 0;
}
if (segment.Text.Length < node.Value.Text.Length)
{
var split = ConsoleSegment.Split(node.Value, segment.Text.Length);
node.Value = segment;
segments.AddAfter(node, split.Item2);
}
else
{
node.Value = segment;
}
return;
}
else
{
cursor -= node.Value.Text.Length;
node = node.Next;
}
}
}