using AipsRT.Model.Whiteboard.Shapes; namespace AipsRT.Model.Whiteboard; public class Whiteboard { public Guid WhiteboardId { get; set; } public Guid OwnerId { get; set; } public List Shapes { get; } = []; public List Rectangles { get; } = []; public List Arrows { get; } = []; public List Lines { get; } = []; public List TextShapes { get; } = []; public void AddRectangle(Rectangle shape) { Shapes.Add(shape); Rectangles.Add(shape); } public void AddArrow(Arrow shape) { Shapes.Add(shape); Arrows.Add(shape); } public void AddLine(Line shape) { Shapes.Add(shape); Lines.Add(shape); } public void AddTextShape(TextShape shape) { Shapes.Add(shape); TextShapes.Add(shape); } }