ClassiCube/OpenTK/NativeWindow.cs

379 lines
16 KiB
C#

#region License
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2009 the Open Toolkit library.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
#endregion
using System;
using System.ComponentModel;
using System.Drawing;
using OpenTK.Graphics;
using OpenTK.Input;
using OpenTK.Platform;
namespace OpenTK {
/// <summary> Instances of this class implement the <see cref="OpenTK.INativeWindow"/> interface on the current platform. </summary>
public class NativeWindow : INativeWindow {
private readonly DisplayDevice device;
private readonly INativeWindow implementation;
private bool disposed, events;
/// <summary>Constructs a new centered NativeWindow with the specified attributes.</summary>
/// <param name="width">The width of the NativeWindow in pixels.</param>
/// <param name="height">The height of the NativeWindow in pixels.</param>
/// <param name="title">The title of the NativeWindow.</param>
/// <param name="options">GameWindow options specifying window appearance and behavior.</param>
/// <param name="mode">The OpenTK.Graphics.GraphicsMode of the NativeWindow.</param>
/// <param name="device">The OpenTK.Graphics.DisplayDevice to construct the NativeWindow in.</param>
/// <exception cref="System.ArgumentOutOfRangeException">If width or height is less than 1.</exception>
/// <exception cref="System.ArgumentNullException">If mode or device is null.</exception>
public NativeWindow(int width, int height, string title, GraphicsMode mode, DisplayDevice device)
: this(device.Bounds.Left + (device.Bounds.Width - width) / 2,
device.Bounds.Top + (device.Bounds.Height - height) / 2,
width, height, title, mode, device) { }
/// <summary>Constructs a new NativeWindow with the specified attributes.</summary>
/// <param name="x">Horizontal screen space coordinate of the NativeWindow's origin.</param>
/// <param name="y">Vertical screen space coordinate of the NativeWindow's origin.</param>
/// <param name="width">The width of the NativeWindow in pixels.</param>
/// <param name="height">The height of the NativeWindow in pixels.</param>
/// <param name="title">The title of the NativeWindow.</param>
/// <param name="options">GameWindow options specifying window appearance and behavior.</param>
/// <param name="mode">The OpenTK.Graphics.GraphicsMode of the NativeWindow.</param>
/// <param name="device">The OpenTK.Graphics.DisplayDevice to construct the NativeWindow in.</param>
/// <exception cref="System.ArgumentOutOfRangeException">If width or height is less than 1.</exception>
/// <exception cref="System.ArgumentNullException">If mode or device is null.</exception>
public NativeWindow(int x, int y, int width, int height, string title, GraphicsMode mode, DisplayDevice device) {
// TODO: Should a constraint be added for the position?
if (width < 1)
throw new ArgumentOutOfRangeException("width", "Must be greater than zero.");
if (height < 1)
throw new ArgumentOutOfRangeException("height", "Must be greater than zero.");
if (mode == null)
throw new ArgumentNullException("mode");
if (device == null)
throw new ArgumentNullException("device");
this.device = device;
implementation = Factory.Default.CreateNativeWindow(x, y, width, height, title, mode, this.device);
}
/// <summary> Closes the NativeWindow. </summary>
public void Close() {
EnsureUndisposed();
implementation.Close();
}
/// <summary> Gets the current contents of the clipboard. </summary>
public string GetClipboardText() {
EnsureUndisposed(); return implementation.GetClipboardText();
}
/// <summary> Sets the current contents of the clipboard. </summary>
public void SetClipboardText(string value) {
EnsureUndisposed(); implementation.SetClipboardText(value);
}
/// <summary> Transforms the specified point from screen to client coordinates. </summary>
/// <param name="point"> A <see cref="System.Drawing.Point"/> to transform. </param>
/// <returns> The point transformed to client coordinates. </returns>
public Point PointToClient(Point point) {
return implementation.PointToClient(point);
}
/// <summary> Transforms the specified point from client to screen coordinates. </summary>
/// <param name="point"> A <see cref="System.Drawing.Point"/> to transform. </param>
/// <returns> The point transformed to screen coordinates. </returns>
public Point PointToScreen(Point point) {
// Here we use the fact that PointToClient just translates the point, and PointToScreen
// should perform the inverse operation.
Point trans = PointToClient(Point.Empty);
point.X -= trans.X;
point.Y -= trans.Y;
return point;
}
/// <summary> Processes operating system events until the NativeWindow becomes idle. </summary>
public void ProcessEvents() {
ProcessEvents(false);
}
/// <summary> Gets or sets a <see cref="System.Drawing.Rectangle"/> structure that contains the external bounds of this window, in screen coordinates.
/// External bounds include the title bar, borders and drawing area of the window. </summary>
public Rectangle Bounds {
get { EnsureUndisposed(); return implementation.Bounds; }
set { EnsureUndisposed(); implementation.Bounds = value; }
}
/// <summary> Gets or sets a <see cref="System.Drawing.Rectangle"/> structure that contains the internal bounds of this window, in client coordinates.
/// The internal bounds include the drawing area of the window, but exclude the titlebar and window borders. </summary>
public Rectangle ClientRectangle {
get { EnsureUndisposed(); return implementation.ClientRectangle; }
set { EnsureUndisposed(); implementation.ClientRectangle = value; }
}
/// <summary> Gets or sets a <see cref="System.Drawing.Size"/> structure that contains the internal size this window. </summary>
public Size ClientSize {
get { EnsureUndisposed(); return implementation.ClientSize; }
set { EnsureUndisposed(); implementation.ClientSize = value;
}
}
/// <summary> Gets a value indicating whether a render window exists. </summary>
public bool Exists {
get {
return IsDisposed ? false : implementation.Exists; // TODO: Should disposed be ignored instead?
}
}
/// <summary> Gets a System.Boolean that indicates whether this NativeWindow has input focus. </summary>
public bool Focused {
get { EnsureUndisposed(); return implementation.Focused; }
}
/// <summary> Gets or sets the System.Drawing.Icon for this GameWindow. </summary>
public Icon Icon {
get { EnsureUndisposed(); return implementation.Icon; }
set { EnsureUndisposed(); implementation.Icon = value; }
}
/// <summary> Gets or sets a <see cref="System.Drawing.Point"/> structure that contains the location of this window on the desktop. </summary>
public Point Location {
get { EnsureUndisposed(); return implementation.Location; }
set { EnsureUndisposed(); implementation.Location = value; }
}
/// <summary> Gets or sets a <see cref="System.Drawing.Size"/> structure that contains the external size of this window. </summary>
public Size Size {
get { EnsureUndisposed(); return implementation.Size; }
set { EnsureUndisposed(); implementation.Size = value; }
}
/// <summary> Gets or sets a System.Boolean that indicates whether this NativeWindow is visible. </summary>
public bool Visible {
get { EnsureUndisposed(); return implementation.Visible; }
set { EnsureUndisposed(); implementation.Visible = value; }
}
/// <summary> Gets the <see cref="OpenTK.Platform.IWindowInfo"/> of this window. </summary>
public IWindowInfo WindowInfo {
get { EnsureUndisposed(); return implementation.WindowInfo; }
}
/// <summary> Gets or states the state of the NativeWindow. </summary>
public virtual WindowState WindowState {
get { return implementation.WindowState; }
set { implementation.WindowState = value; }
}
/// <summary> Gets the primary Keyboard device, or null if no Keyboard exists. </summary>
public KeyboardDevice Keyboard {
get { return implementation.Keyboard; }
}
/// <summary> Gets the primary Mouse device, or null if no Mouse exists. </summary>
public MouseDevice Mouse {
get { return implementation.Mouse; }
}
/// <summary> Sets whether the cursor is visible in the window. </summary>
public bool CursorVisible {
get { return implementation.CursorVisible; }
set { implementation.CursorVisible = value; }
}
/// <summary> Gets or sets the cursor position in screen coordinates. </summary>
public Point DesktopCursorPos {
get { return implementation.DesktopCursorPos; }
set { implementation.DesktopCursorPos = value; }
}
/// <summary> Occurs after the window has closed. </summary>
public event EventHandler<EventArgs> Closed;
/// <summary> Occurs when the window is about to close. </summary>
public event EventHandler<CancelEventArgs> Closing;
/// <summary> Occurs when the window is disposed. </summary>
public event EventHandler<EventArgs> Disposed;
/// <summary> Occurs when the <see cref="Focused"/> property of the window changes. </summary>
public event EventHandler<EventArgs> FocusedChanged;
/// <summary> Occurs whenever a character is typed. </summary>
public event EventHandler<KeyPressEventArgs> KeyPress;
/// <summary> Occurs whenever the window is moved. </summary>
public event EventHandler<EventArgs> Move;
/// <summary> Occurs whenever the mouse cursor enters the window <see cref="Bounds"/>. </summary>
public event EventHandler<EventArgs> MouseEnter;
/// <summary> Occurs whenever the mouse cursor leaves the window <see cref="Bounds"/>. </summary>
public event EventHandler<EventArgs> MouseLeave;
/// <summary> Occurs whenever the window is resized. </summary>
public event EventHandler<EventArgs> Resize;
/// <summary> Occurs when the <see cref="Visible"/> property of the window changes. </summary>
public event EventHandler<EventArgs> VisibleChanged;
/// <summary> Occurs when the <see cref="WindowState"/> property of the window changes. </summary>
public event EventHandler<EventArgs> WindowStateChanged;
/// <summary> Releases all non-managed resources belonging to this NativeWindow. </summary>
public virtual void Dispose() {
if (!IsDisposed) {
implementation.Dispose();
GC.SuppressFinalize(this);
IsDisposed = true;
}
}
/// <summary> Ensures that this NativeWindow has not been disposed. </summary>
/// <exception cref="System.ObjectDisposedException"> If this NativeWindow has been disposed. </exception>
protected void EnsureUndisposed() {
if (disposed) throw new ObjectDisposedException(GetType().Name);
}
/// <summary> Gets or sets a <see cref="System.Boolean"/>, which indicates whether this instance has been disposed. </summary>
protected bool IsDisposed {
get { return disposed; }
set { disposed = value; }
}
/// <summary> Called when the NativeWindow has closed. </summary>
/// <param name="e">Not used.</param>
protected virtual void OnClosed(object sender, EventArgs e) {
if (Closed != null) Closed(this, e);
}
/// <summary> Called when the NativeWindow is about to close. </summary>
/// <param name="e"> The <see cref="System.ComponentModel.CancelEventArgs" /> for this event.
/// Set e.Cancel to true in order to stop the NativeWindow from closing.</param>
protected virtual void OnClosing(object sender, CancelEventArgs e) {
if (Closing != null) Closing(this, e);
}
/// <summary> Called when the NativeWindow is disposed. </summary>
protected virtual void OnDisposed(object sender, EventArgs e) {
if (Disposed != null) Disposed(this, e);
}
/// <summary> Called when the <see cref="OpenTK.INativeWindow.Focused"/> property of the NativeWindow has changed. </summary>
protected virtual void OnFocusedChanged(object sender, EventArgs e) {
if (FocusedChanged != null) FocusedChanged(this, e);
}
/// <summary> Called when a character is typed. </summary>
/// <param name="e">The <see cref="OpenTK.KeyPressEventArgs"/> for this event.</param>
protected virtual void OnKeyPress(object sender, KeyPressEventArgs e) {
if (KeyPress != null) KeyPress(this, e);
}
/// <summary> Called when the NativeWindow is moved. </summary>
protected virtual void OnMove(object sender, EventArgs e) {
if (Move != null) Move(this, e);
}
/// <summary> Called whenever the mouse cursor reenters the window <see cref="Bounds"/>. </summary>
protected virtual void OnMouseEnter(object sender, EventArgs e) {
if (MouseEnter != null) MouseEnter(this, e);
}
/// <summary> Called whenever the mouse cursor leaves the window <see cref="Bounds"/>. </summary>
protected virtual void OnMouseLeave(object sender, EventArgs e) {
if (MouseLeave != null) MouseLeave(this, e);
}
/// <summary> Called when the NativeWindow is resized. </summary>
/// <param name="e">Not used.</param>
protected virtual void OnResize(object sender, EventArgs e) {
if (Resize != null) Resize(this, e);
}
/// <summary> Called when the <see cref="OpenTK.INativeWindow.Visible"/> property of the NativeWindow has changed. </summary>
protected virtual void OnVisibleChanged(object sender, EventArgs e) {
if (VisibleChanged != null) VisibleChanged(this, e);
}
/// <summary> Called when the WindowState of this NativeWindow has changed. </summary>
protected virtual void OnWindowStateChanged(object sender, EventArgs e) {
if (WindowStateChanged != null) WindowStateChanged(this, e);
}
/// <summary> Processes operating system events until the NativeWindow becomes idle. </summary>
/// <param name="retainEvents">If true, the state of underlying system event propagation will be preserved, otherwise event propagation will be enabled if it has not been already.</param>
protected void ProcessEvents(bool retainEvents) {
EnsureUndisposed();
if (!retainEvents && !events) Events = true;
implementation.ProcessEvents();
}
private void OnClosedInternal(object sender, EventArgs e) {
OnClosed(null, e);
Events = false;
}
private bool Events {
set {
if (value) {
if (events) {
throw new InvalidOperationException("Event propagation is already enabled.");
}
implementation.Closed += OnClosed;
implementation.Closing += OnClosing;
implementation.Disposed += OnDisposed;
implementation.FocusedChanged += OnFocusedChanged;
implementation.KeyPress += OnKeyPress;
implementation.MouseEnter += OnMouseEnter;
implementation.MouseLeave += OnMouseLeave;
implementation.Move += OnMove;
implementation.Resize += OnResize;
implementation.VisibleChanged += OnVisibleChanged;
implementation.WindowStateChanged += OnWindowStateChanged;
events = true;
} else if (events) {
implementation.Closed -= OnClosed;
implementation.Closing -= OnClosing;
implementation.Disposed -= OnDisposed;
implementation.FocusedChanged -= OnFocusedChanged;
implementation.KeyPress -= OnKeyPress;
implementation.MouseEnter -= OnMouseEnter;
implementation.MouseLeave -= OnMouseLeave;
implementation.Move -= OnMove;
implementation.Resize -= OnResize;
implementation.VisibleChanged -= OnVisibleChanged;
implementation.WindowStateChanged -= OnWindowStateChanged;
events = false;
} else {
throw new InvalidOperationException("Event propagation is already disabled.");
}
}
}
}
}