407 lines
12 KiB
C#
407 lines
12 KiB
C#
#region --- License ---
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/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
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* See license.txt for license info
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Diagnostics;
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using OpenTK.Platform;
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namespace OpenTK
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{
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public class GameWindow : OpenTK.Platform.IGameWindow
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{
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private INativeWindow glWindow;
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private ResizeEventArgs resizeEventArgs = new ResizeEventArgs();
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private DisplayMode mode;
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private InputDriver inputDevices;
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public IList<Input.Keyboard> Keyboard { get { return Input.Keyboard; } }
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public InputDriver Input
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{
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get
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{
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if (inputDevices == null)
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inputDevices = new InputDriver(this.Handle);
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return inputDevices;
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}
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}
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#region --- Contructors ---
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/// <summary>
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/// Constructs a new GameWindow, using a safe DisplayMode.
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/// </summary>
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public GameWindow()
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{
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if (Environment.OSVersion.Platform == PlatformID.Win32NT ||
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Environment.OSVersion.Platform == PlatformID.Win32Windows)
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{
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// Create a new Windows native window. We want to be notified when it's ready,
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// in order to do some preparatory work.
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glWindow = new OpenTK.Platform.Windows.WinGLNative();
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}
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else if (Environment.OSVersion.Platform == PlatformID.Unix ||
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Environment.OSVersion.Platform == (PlatformID)128) // some older versions of Mono reported 128.
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{
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glWindow = new OpenTK.Platform.X11.X11GLNative();
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}
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else
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{
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throw new PlatformNotSupportedException(
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"Your operating system is not currently supported. We are sorry for the inconvenience."
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);
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}
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glWindow.Resize += new ResizeEvent(glWindow_Resize);
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glWindow.Create += new CreateEvent(glWindow_Create);
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}
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void glWindow_Create(object sender, EventArgs e)
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{
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//glWindow.Context.MakeCurrent();
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inputDevices = new InputDriver(this.Handle);
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this.OnCreate(e);
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}
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void glWindow_Resize(object sender, ResizeEventArgs e)
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{
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this.OnResize(e);
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}
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#endregion
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#region --- INativeWindow Members ---
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#region public void CreateWindow(DisplayMode mode)
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/// <summary>
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/// Creates a new render window.
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/// </summary>
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/// <param name="mode">The DisplayMode of the render window.</param>
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/// <exception cref="ApplicationException">Occurs when a render window already exists.</exception>
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public void CreateWindow(DisplayMode mode)
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{
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if (!Created)
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{
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glWindow.CreateWindow(mode);
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}
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else
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{
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throw new ApplicationException("A render window already exists");
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}
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}
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#endregion
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#region public IntPtr Handle
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/// <summary>
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/// Gets the handle of the current GameWindow.
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/// </summary>
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public IntPtr Handle
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{
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get { return glWindow.Handle; }
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}
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#endregion
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#region public void Exit()
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/// <summary>
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/// Gracefully exits the current GameWindow.
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/// </summary>
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public void Exit()
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{
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glWindow.Exit();
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}
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#endregion
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#region public bool IsIdle
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/// <summary>
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/// Gets a value indicating whether the current GameWindow is idle.
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/// If true, the OnUpdateFrame and OnRenderFrame functions should be called.
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/// </summary>
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public bool IsIdle
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{
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get { return glWindow.IsIdle; }
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}
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#endregion
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#region public bool Quit
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/// <summary>
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/// Gets a value indicating whether the current GameWindow is quitting.
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/// </summary>
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/// <remarks>
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/// You should not call OnRenderFrame, Resize, and other GameWindow related function
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/// when the quit sequence has been initiated, as indicated by the Quitting property.
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/// NullReference- or ApplicationExceptions may occur otherwise.
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/// </remarks>
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public bool Quit
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{
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get { return glWindow.Quit; }
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}
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#endregion
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#region public bool Fullscreen
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public bool Fullscreen
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{
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get { return glWindow.Fullscreen; }
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set { glWindow.Fullscreen = value; }
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}
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#endregion
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#region public IGLContext Context
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/// <summary>
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/// Returns the opengl IGLontext associated with the current GameWindow.
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/// Forces window creation.
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/// </summary>
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public IGLContext Context
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{
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get
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{
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if (!glWindow.Created)
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{
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Debug.WriteLine("WARNING: OpenGL Context accessed before creating a render window. This may indicate a programming error. Force-creating a render window.");
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mode = new DisplayMode(640, 480);
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this.CreateWindow(mode);
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}
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return glWindow.Context;
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}
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}
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#endregion
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#region public bool Created
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/// <summary>
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/// Gets a value indicating whether a render window has been created.
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/// </summary>
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public bool Created
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{
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get { return glWindow.Created; }
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}
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#endregion
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#endregion
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#region --- IGameWindow Members ---
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#region public virtual void Run()
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/// <summary>
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/// Runs the default game loop on GameWindow (process event->update frame->render frame).
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/// </summary>
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/// <remarks>
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/// <para>
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/// A default game loop consists of three parts: Event processing,
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/// a frame update and a frame render.
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/// </para>
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/// <para>
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/// Override this function if you want to change the behaviour of the
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/// default game loop. If you override this function, you must place
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/// a call to the ProcessEvents function, to ensure window will respond
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/// to Operating System events.
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/// </para>
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/// </remarks>
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public virtual void Run()
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{
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while (!this.Quit)
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{
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this.ProcessEvents();
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this.OnUpdateFrame();
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this.OnRenderFrame();
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}
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}
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#endregion
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#region public void ProcessEvents()
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/// <summary>
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/// Processes operating system events until the GameWindow becomes idle.
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/// </summary>
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/// <remarks>
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/// When overriding the default GameWindow game loop (provided by the Run() function)
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/// you should call ProcessEvents() to ensure that your GameWindow responds to
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/// operating system events.
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/// <para>
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/// Once ProcessEvents() returns, it is time to call update and render the next frame.
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/// </para>
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/// </remarks>
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public void ProcessEvents()
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{
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glWindow.ProcessEvents();
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}
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#endregion
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#region public event CreateEvent Create;
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public event CreateEvent Create;
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private void OnCreate(EventArgs e)
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{
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if (this.Create != null)
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{
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this.Create(this, e);
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}
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}
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#endregion
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#region public virtual void OnRenderFrame()
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/// <summary>
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/// Raises the RenderFrame event. Override in derived classes to render a frame.
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/// </summary>
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/// <remarks>
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/// If overriden, the base.OnRenderFrame() function should be called, to ensure
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/// listeners are notified of RenderFrame events.
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/// </remarks>
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public virtual void OnRenderFrame()
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{
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if (!this.Created)
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{
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Debug.Print("WARNING: RenderFrame event raised, without a valid render window. This may indicate a programming error. Creating render window.");
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mode = new DisplayMode(640, 480);
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this.CreateWindow(mode);
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}
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if (RenderFrame != null)
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RenderFrame(EventArgs.Empty);
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}
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#endregion
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#region public virtual void OnUpdateFrame()
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/// <summary>
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/// Raises the UpdateFrame event. Override in derived classes to update a frame.
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/// </summary>
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/// <remarks>
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/// If overriden, the base.OnUpdateFrame() function should be called, to ensure
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/// listeners are notified of UpdateFrame events.
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/// </remarks>
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public virtual void OnUpdateFrame()
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{
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if (!this.Created)
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{
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Debug.Print("WARNING: UpdateFrame event raised, without a valid render window. This may indicate a programming error. Creating render window.");
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mode = new DisplayMode(640, 480);
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this.CreateWindow(mode);
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}
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if (UpdateFrame != null)
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UpdateFrame(EventArgs.Empty);
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}
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#endregion
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/// <summary>
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/// Occurs when it is time to update the next frame.
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/// </summary>
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public event UpdateFrameEvent UpdateFrame;
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/// <summary>
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/// Occurs when it is time to render the next frame.
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/// </summary>
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public event RenderFrameEvent RenderFrame;
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#endregion
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#region --- IResizable Members ---
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#region public int Width, Height
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public int Width
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{
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get { return glWindow.Width; }
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set
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{
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if (value == this.Width)
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{
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return;
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}
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else if (value > 0)
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{
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glWindow.Width = value;
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}
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else
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{
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throw new ArgumentOutOfRangeException(
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"Width",
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value,
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"Width must be greater than 0"
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);
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}
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}
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}
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public int Height
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{
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get { return glWindow.Height; }
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set
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{
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if (value == this.Height)
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{
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return;
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}
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else if (value > 0)
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{
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glWindow.Height = value;
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}
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else
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{
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throw new ArgumentOutOfRangeException(
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"Height",
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value,
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"Height must be greater than 0"
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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 public event ResizeEvent Resize;
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public event ResizeEvent Resize;
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/// <summary>
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/// Raises the Resize event.
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/// </summary>
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/// <param name="e">Contains the new Width and Height of the window.</param>
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protected virtual void OnResize(ResizeEventArgs e)
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{
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if (this.Resize != null)
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this.Resize(this, e);
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}
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#endregion
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#endregion
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#region --- IDisposable Members ---
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public void Dispose()
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{
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glWindow.Dispose();
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glWindow = null;
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}
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#endregion
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}
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}
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