WidgetAnchor.cs

using System.Drawing;
 
namespace Gondwana.Widgets;

public enum WidgetAnchor
{
    TopLeft,

    TopCenter,

    TopRight,

    CenterLeft,

    Center,

    CenterRight,

    BottomLeft,

    BottomCenter,

    BottomRight
}
 
internal static class WidgetAnchorExtensions
{
    internal static PointF GetPoint(
        this WidgetAnchor anchor,
        Rectangle bounds)
    {
        float centerX = bounds.Left + bounds.Width / 2f;
        float centerY = bounds.Top + bounds.Height / 2f;
 
        return anchor switch
        {
            WidgetAnchor.TopLeft => new PointF(bounds.Left, bounds.Top),
            WidgetAnchor.TopCenter => new PointF(centerX, bounds.Top),
            WidgetAnchor.TopRight => new PointF(bounds.Right, bounds.Top),
            WidgetAnchor.CenterLeft => new PointF(bounds.Left, centerY),
            WidgetAnchor.Center => new PointF(centerX, centerY),
            WidgetAnchor.CenterRight => new PointF(bounds.Right, centerY),
            WidgetAnchor.BottomLeft => new PointF(bounds.Left, bounds.Bottom),
            WidgetAnchor.BottomCenter => new PointF(centerX, bounds.Bottom),
            WidgetAnchor.BottomRight => new PointF(bounds.Right, bounds.Bottom),
            _ => throw new ArgumentOutOfRangeException(nameof(anchor), anchor, null)
        };
    }
}