using Hi.Disp;
using Hi.Licenses;
using System;
using System.Windows;
using System.Windows.Media;

namespace Hi.Wpf.Disp
{
    /// <summary>
    /// Window for 3D rendering.
    /// </summary>
    public class RenderingWindow : Window, IGetDispEngine
    {
        /// <summary>
        /// Gets the rendering canvas control used for displaying 3D content.
        /// </summary>
        public RenderingCanvas RenderingCanvas => Content as RenderingCanvas;

        /// <summary>
        /// Ctor.
        /// </summary>
        public RenderingWindow()
        {
            Title = nameof(RenderingWindow);
            Height = 450;
            Width = 800;
            StateChanged += RenderingWind_StateChanged;
            Content = new RenderingCanvas()
            {
                BorderThickness = new Thickness(1),
                BorderBrush = Brushes.Black
            };
        }
        private void RenderingWind_StateChanged(object sender, EventArgs e)
        {
            RenderingCanvas.DispEngine.IsVisible = WindowState != WindowState.Minimized;
        }
        /// <inheritdoc/>
        public DispEngine GetDispEngine() => RenderingCanvas.DispEngine;
        /// <summary>
        /// Gets or sets the current displayable 3D object.
        /// When setting a new displayee, the view will be reset to home position if no previous displayee was set.
        /// </summary>
        public IDisplayee Displayee
        {
            get => GetDispEngine().Displayee;
            set
            {
                var preDisplayee = GetDispEngine().Displayee;
                GetDispEngine().Displayee = value;
                if (preDisplayee == null)
                    RenderingCanvas.DispEngine.SetViewToHomeView();
            }
        }
    }
}