/// <summary>
/// Renders the autocomplete dialog inside the given <paramref name="view"/> at the
/// given point.
/// </summary>
/// <param name="view">The view the overlay should be rendered into</param>
/// <param name="renderAt"></param>
public void RenderOverlay(View view, Point renderAt)
{
if (!Visible || !view.HasFocus || Suggestions.Count == 0)
{
return;
}
view.Move(renderAt.X, renderAt.Y);
// don't overspill vertically
var height = Math.Min(view.Bounds.Height - renderAt.Y, MaxHeight);
var toRender = Suggestions.Skip(ScrollOffset).Take(height).ToArray();
if (toRender.Length == 0)
{
return;
}
var width = Math.Min(MaxWidth, toRender.Max(s => s.Length));
// don't overspill horizontally
width = Math.Min(view.Bounds.Width - renderAt.X, width);
for (int i = 0; i < toRender.Length; i++)
{
if (i == SelectedIdx - ScrollOffset)
{
Application.Driver.SetAttribute(ColorScheme.Focus);
}
else
{
Application.Driver.SetAttribute(ColorScheme.Normal);
}
view.Move(renderAt.X, renderAt.Y + i);
var text = TextFormatter.ClipOrPad(toRender[i], width);
Application.Driver.AddStr(text);
}
}
