public static ICharIterator Rent(
ICharIterator source, bool leaveSourceOpen,
TransformCharIterator.Transform transform, bool leaveTransformOpen)
{
lock (_transformIterators)
{
if (_transformIterators.TryTake(out var iterator))
{
iterator.Set(source, leaveSourceOpen, transform, leaveTransformOpen);
return(iterator);
}
}
return(new TransformCharIterator(source, leaveSourceOpen, transform, leaveTransformOpen));
}
public void Remove(int index, int count)
{
if (index > CurrentText.Length)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
var transform = new TransformCharIterator.Transform(offsetInSource: index, count);
// leave source open as we dispose CurrentText in SetText()
using (var iter = IteratorPool.Rent(
CurrentText, leaveSourceOpen: true, transform, leaveTransformOpen: false))
{
SetText(_font, iter, _usedColorFormat);
}
}
public void Insert(int index, ICharIterator chars, int offset, int count, bool useColorFormat)
{
if (index > CurrentText.Length)
{
throw new ArgumentOutOfRangeException(nameof(index));
}
var transform = new TransformCharIterator.Transform(offsetInSource: index, chars, offset, count);
// leave source open as we dispose CurrentText in SetText()
using (var iter = IteratorPool.Rent(
CurrentText, leaveSourceOpen: true, transform, leaveTransformOpen: true))
{
SetText(_font, iter, useColorFormat);
}
BuildSprites(measure: false);
}