출처 : 본인

처음 로드시에 list를 만든 뒤 resize 할 때 마다 좌표를 계속 바꿔준다.

public class PanelMarker : Panel

{

internal List<OnMarker> list = new List<OnMarker>();

public PanelMarker() : base()

{

this.DoubleBuffered = true;

this.ResizeRedraw = true;

}

protected override void OnPaint(PaintEventArgs e)

{

base.OnPaint(e);

if (list.Count < 1)

{

foreach (Control c in this.Controls)

{

if (c is Panel)

{

OnMarker o = new OnMarker();

c.Anchor = AnchorStyles.None;

o.Control = c;

o.SizeRatioWidth = (float)c.Width / this.Width;

o.SizeRatioHeight = (float)c.Height / this.Height;

o.LocationRatioX = (float)(c.Left + c.Width / 2) / this.Width;

o.LocationRatioY = (float)(c.Top + c.Height / 2) / this.Height;

list.Add(o);

}

}

}

}

protected override void OnResize(EventArgs eventargs)

{

base.OnResize(eventargs);

//리스트를 불러와서 다시 그린다.

foreach (OnMarker o in list)

{

o.Control.Width = (int)(this.Size.Width * o.SizeRatioWidth);

o.Control.Height = (int)(this.Size.Height * o.SizeRatioHeight);

o.Control.Left = (int)(this.Size.Width * o.LocationRatioX) - (o.Control.Width / 2);

o.Control.Top = (int)(this.Size.Height * o.LocationRatioY) - (o.Control.Height / 2);

}

}

internal struct OnMarker

{

internal Control Control { get; set; }

internal float LocationRatioX { get; set; }

internal float LocationRatioY { get; set; }

internal float SizeRatioWidth { get; set; }

internal float SizeRatioHeight { get; set; }

}

}

C# Panel 위의 Control을 Marker 처럼 따라 다니게 하자