private void ColorMapControl_MouseMove(object sender, MouseEventArgs e)
{
if (_colormap == null)
{
return;
}
if (_leftMouseDown && (Math.Abs(_mouseDownPosition.X - e.X) > 2 || Math.Abs(_mouseDownPosition.Y - e.Y) > 2))
{
int origin = WorldToIndex(_mouseDownPosition.X);
int destination = WorldToIndex(e.X);
List <Color> l = _colormap.GetListCopy();
Color c = l[origin];
l[origin] = l[destination];
l[destination] = c;
_tempMap = new ColorMap(l);
_draggingColor = true;
Invalidate();
}
}
