/Main/src/Microsoft.Research.Visualization3D/DrawableComponent.cs

  1using System;
  2using System.Collections.Generic;
  3using System.Linq;
  4using System.Text;
  5using SlimDX.Direct3D9;
  6using Microsoft.Research.Visualization3D.CameraUtilities;
  7using Microsoft.Research.Visualization3D.MainLoops;
  8
  9namespace Microsoft.Research.Visualization3D
 10{
 11    public abstract class DrawableComponent
 12    {
 13        protected Device device;
 14        protected Effect effect;
 15        protected Camera camera;
 16        protected Visualization3DDataSource dataSource;
 17
 18        private bool isEnabled;
 19
 20        public bool IsEnabled
 21        {
 22            get { return isEnabled; }
 23            set
 24            {
 25                isEnabled = value;
 26                if (value)
 27                    this.Initialize();
 28            }
 29        }
 30
 31        public abstract float CurrentValue
 32        {
 33            get;
 34            set;
 35        }
 36
 37        public Camera Camera
 38        {
 39            get { return camera; }
 40        }
 41
 42        public Visualization3DDataSource DataSource
 43        {
 44            get { return this.dataSource; }
 45            set
 46            {
 47                dataSource = value;
 48                OnDataSourceChanged();
 49            }
 50        }
 51
 52        public DrawableComponent(DX3DHost host, Visualization3DDataSource dataSource)
 53        {
 54            this.device = host.Device;
 55            this.camera = host.Camera;
 56            this.dataSource = dataSource;
 57
 58            this.isEnabled = false;
 59
 60            host.DeviceReset += OnDeviceReset;
 61            host.DeviceLost += OnDeviceLost;
 62            host.DeviceDestroyed += OnDeviceDestroyed;
 63        }
 64
 65        public abstract void Draw(TimeEntity timeEntity);
 66        public abstract void Update(TimeEntity timeEntity);
 67        protected virtual void OnDeviceReset(object sender, EventArgs e)
 68        {
 69 
 70        }
 71        protected virtual void OnDeviceLost(object sender, EventArgs e)
 72        {
 73 
 74        }
 75
 76        protected virtual void OnDeviceDestroyed(object sender, EventArgs e)
 77        {
 78 
 79        }
 80
 81        protected virtual void SetCamera()
 82        {
 83 
 84        }
 85
 86        protected virtual void OnDataSourceChanged()
 87        {
 88 
 89        }
 90
 91        public virtual void Initialize()
 92        {
 93            camera.NearPlane = 0.1f;
 94            camera.FarPlane = 1000.0f;
 95            camera.FieldOfView = (float)Math.PI / 4.0f;
 96            camera.AspectRatio = (float)device.Viewport.Width / (float)device.Viewport.Height;
 97            
 98            SetCamera();
 99        }
100
101    }
102}