// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
//
 
using System;
using System.Diagnostics;
using System.Windows;
using System.Windows.Media;
 
namespace System.Windows.Media.Effects
{
    /// <summary>
    /// BlurEffect
    /// </summary>
    public partial class BlurEffect
    {
        #region Constructors
        /// <summary>
        /// Constructor
        /// </summary>
        public BlurEffect()
        {
        }
 
        #endregion
        
        /// <summary>
        /// Takes in content bounds, and returns the bounds of the rendered
        /// output of that content after the Effect is applied.
        /// </summary>
        internal override Rect GetRenderBounds(Rect contentBounds)
        {
            Point topLeft = new Point();
            Point bottomRight = new Point();
 
            double radius = Radius;
            topLeft.X = contentBounds.TopLeft.X - radius;
            topLeft.Y = contentBounds.TopLeft.Y - radius;
            bottomRight.X = contentBounds.BottomRight.X + radius;
            bottomRight.Y = contentBounds.BottomRight.Y + radius;
            
            return new Rect(topLeft, bottomRight);
        }
    }
}