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#region License
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/* FNA - XNA4 Reimplementation for Desktop Platforms
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* Copyright 2009-2022 Ethan Lee and the MonoGame Team
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*
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* Released under the Microsoft Public License.
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* See LICENSE for details.
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*/
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#endregion
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#region Using Statements
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using System;
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using Microsoft.Xna.Framework.Graphics;
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#endregion
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namespace Microsoft.Xna.Framework
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{
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public class DrawableGameComponent : GameComponent, IDrawable
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{
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#region Public Properties
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public Graphics.GraphicsDevice GraphicsDevice
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{
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get
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{
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return this.Game.GraphicsDevice;
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}
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}
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public int DrawOrder
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{
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get
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{
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return _drawOrder;
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}
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set
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{
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if (_drawOrder != value)
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{
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_drawOrder = value;
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if (DrawOrderChanged != null)
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{
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DrawOrderChanged(this, null);
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}
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OnDrawOrderChanged(this, null);
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}
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}
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}
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public bool Visible
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{
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get
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{
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return _visible;
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}
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set
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{
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if (_visible != value)
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{
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_visible = value;
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if (VisibleChanged != null)
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{
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VisibleChanged(this, EventArgs.Empty);
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}
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OnVisibleChanged(this, EventArgs.Empty);
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}
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}
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}
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#endregion
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#region Private Variables
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private bool _initialized;
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private int _drawOrder;
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private bool _visible = true;
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#endregion
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#region Public Constructors
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public DrawableGameComponent(Game game) : base(game)
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{
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}
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#endregion
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#region Events
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public event EventHandler<EventArgs> DrawOrderChanged;
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public event EventHandler<EventArgs> VisibleChanged;
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#endregion
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#region Public Methods
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public override void Initialize()
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{
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if (!_initialized)
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{
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_initialized = true;
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IGraphicsDeviceService graphicsDeviceService = (IGraphicsDeviceService)
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Game.Services.GetService(typeof(IGraphicsDeviceService));
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if (graphicsDeviceService != null)
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{
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if (graphicsDeviceService.GraphicsDevice != null)
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{
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LoadContent();
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}
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else
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{
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graphicsDeviceService.DeviceCreated += OnDeviceCreated;
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}
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}
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}
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}
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#endregion
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#region Protected Methods
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protected override void Dispose(bool disposing)
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{
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if (_initialized)
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{
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UnloadContent();
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}
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base.Dispose(disposing);
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}
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#endregion
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#region Private Methods
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private void OnDeviceCreated(object sender, EventArgs e)
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{
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LoadContent();
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}
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#endregion
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#region Public Virtual Methods
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public virtual void Draw(GameTime gameTime)
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{
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}
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#endregion
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#region Protected Virtual Methods
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protected virtual void LoadContent()
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{
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}
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protected virtual void UnloadContent()
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{
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}
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protected virtual void OnVisibleChanged(object sender, EventArgs args)
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{
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}
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protected virtual void OnDrawOrderChanged(object sender, EventArgs args)
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{
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}
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#endregion
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}
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}
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