using Microsoft.Maui.Graphics;
 
namespace Microsoft.Maui
{
	/// <summary>
	/// Represents a view that can be drawn on using drawing commands.
	/// </summary>
	public interface IGraphicsView : IView
	{
		/// <summary>
		/// Define the drawing content.
		/// </summary>
		IDrawable Drawable { get; }
 
		/// <summary>
		/// Informs the canvas that it needs to redraw itself.
		/// </summary>
		void Invalidate();
 
		/// <summary>
		/// Raised when a pointer enters the hit test area of the GraphicsView.
		/// </summary>
		/// <param name="points">The set of positions where there has been interaction.</param>
		void StartHoverInteraction(PointF[] points);
 
		/// <summary>
		/// Raised when a pointer moves while the pointer remains within the hit test 
		/// area of the GraphicsView.
		/// </summary>
		/// <param name="points">The set of positions where there has been interaction.</param>
		void MoveHoverInteraction(PointF[] points);
 
		/// <summary>
		/// Raised when a pointer leaves the hit test area of the GraphicsView.
		/// </summary>
		void EndHoverInteraction();
 
		/// <summary>
		/// Raised when the GraphicsView is pressed.
		/// </summary>
		/// <param name="points">The set of positions where there has been interaction.</param>
		void StartInteraction(PointF[] points);
 
		/// <summary>
		/// Raised when the GraphicsView is dragged.
		/// </summary>
		/// <param name="points">The set of positions where there has been interaction.</param>
		void DragInteraction(PointF[] points);
 
		/// <summary>
		/// Raised when the press that raised the StartInteraction event is released.
		/// </summary>
		/// <param name="points">The set of positions where there has been interaction.</param>
		/// <param name="isInsideBounds">a boolean that indicates if the interaction takes place within the bounds.</param>
		void EndInteraction(PointF[] points, bool isInsideBounds);
 
		/// <summary>
		/// Raised when the press that made contact with the GraphicsView loses contact.
		/// </summary>
		void CancelInteraction();
	}
}