using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using SlimDX.Direct3D9;

using Microsoft.Research.Visualization3D.CameraUtilities;

using Microsoft.Research.Visualization3D.MainLoops;



namespace Microsoft.Research.Visualization3D

{

    public abstract class DrawableComponent

    {

        protected Device device;

        protected Effect effect;

        protected Camera camera;

        protected Visualization3DDataSource dataSource;



        private bool isEnabled;



        public bool IsEnabled

        {

            get { return isEnabled; }

            set

            {

                isEnabled = value;

                if (value)

                    this.Initialize();

            }

        }



        public abstract float CurrentValue

        {

            get;

            set;

        }



        public Camera Camera

        {

            get { return camera; }

        }



        public Visualization3DDataSource DataSource

        {

            get { return this.dataSource; }

            set

            {

                dataSource = value;

                OnDataSourceChanged();

            }

        }



        public DrawableComponent(DX3DHost host, Visualization3DDataSource dataSource)

        {

            this.device = host.Device;

            this.camera = host.Camera;

            this.dataSource = dataSource;



            this.isEnabled = false;



            host.DeviceReset += OnDeviceReset;

            host.DeviceLost += OnDeviceLost;

            host.DeviceDestroyed += OnDeviceDestroyed;

        }



        public abstract void Draw(TimeEntity timeEntity);

        public abstract void Update(TimeEntity timeEntity);

        protected virtual void OnDeviceReset(object sender, EventArgs e)

        {

 

        }

        protected virtual void OnDeviceLost(object sender, EventArgs e)

        {

 

        }



        protected virtual void OnDeviceDestroyed(object sender, EventArgs e)

        {

 

        }



        protected virtual void SetCamera()

        {

 

        }



        protected virtual void OnDataSourceChanged()

        {

 

        }



        public virtual void Initialize()

        {

            camera.NearPlane = 0.1f;

            camera.FarPlane = 1000.0f;

            camera.FieldOfView = (float)Math.PI / 4.0f;

            camera.AspectRatio = (float)device.Viewport.Width / (float)device.Viewport.Height;

            

            SetCamera();

        }



    }

}