public WindowBuffer(StringLineBuffer stringLineBuffer, Size size, Point cursorPosition)
{
if (stringLineBuffer.Width != size.Width)
{
throw new NotImplementedException();
}
Size = size;
windowBuffer = new char[Size.Height][];
InitWindowBuffer(stringLineBuffer, cursorPosition);
}
private void InitWindowBuffer(StringLineBuffer stringLineBuffer, Point cursorPosition)
{
var windowLeft = 0; // TODO: change first index if we implement width.
var windowTop = Math.Max(0, cursorPosition.Y - Size.Height);
CursorPosition = new Point(
cursorPosition.X, // TODO: change first index if we implement width.
cursorPosition.Y - windowTop);
for (var i = 0; i < windowBuffer.Length; i++)
{
windowBuffer[i] = new char[Size.Width];
if (windowTop < stringLineBuffer.LineCount)
{
var lineBuffer = stringLineBuffer.GetTextLineBuffer(windowTop++);
Array.Copy(lineBuffer, windowLeft, windowBuffer[i], 0, Size.Width);
}
}
}