94fdf1881c
- The complete mouse state is now available in mouse events - Horizontal wheels are now supported - MouseState now takes up less memory and has a simpler internal implementation.
370 lines
12 KiB
C#
370 lines
12 KiB
C#
#region License
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//
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// MouseEventArgs.cs
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//
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// Author:
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// Stefanos A. <stapostol@gmail.com>
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//
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// Copyright (c) 2006-2014 Stefanos Apostolopoulos
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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#endregion
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using System;
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using System.Drawing;
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namespace OpenTK.Input
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{
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/// <summary>
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/// Defines the event data for <see cref="MouseDevice"/> events.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Do not cache instances of this type outside their event handler.
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/// If necessary, you can clone an instance using the
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/// <see cref="MouseEventArgs(MouseEventArgs)"/> constructor.
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/// </para>
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/// </remarks>
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public class MouseEventArgs : EventArgs
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{
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#region Fields
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MouseState state;
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#endregion
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#region Constructors
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/// <summary>
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/// Constructs a new instance.
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/// </summary>
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public MouseEventArgs()
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{
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state.SetIsConnected(true);
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}
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/// <summary>
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/// Constructs a new instance.
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/// </summary>
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/// <param name="x">The X position.</param>
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/// <param name="y">The Y position.</param>
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public MouseEventArgs(int x, int y)
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: this()
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{
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state.X = x;
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state.Y = y;
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}
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/// <summary>
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/// Constructs a new instance.
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/// </summary>
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/// <param name="args">The <see cref="MouseEventArgs"/> instance to clone.</param>
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public MouseEventArgs(MouseEventArgs args)
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: this(args.X, args.Y)
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{
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}
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#endregion
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#region Protected Members
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internal void SetButton(MouseButton button, ButtonState state)
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{
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if (button < 0 || button > MouseButton.LastButton)
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throw new ArgumentOutOfRangeException();
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switch (state)
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{
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case ButtonState.Pressed:
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this.state.EnableBit((int)button);
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break;
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case ButtonState.Released:
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this.state.DisableBit((int)button);
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break;
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}
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}
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internal ButtonState GetButton(MouseButton button)
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{
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if (button < 0 || button > MouseButton.LastButton)
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throw new ArgumentOutOfRangeException();
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return
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state.ReadBit((int)button) ?
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ButtonState.Pressed : ButtonState.Released;
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}
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#endregion
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#region Public Members
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/// <summary>
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/// Gets the X position of the mouse for the event.
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/// </summary>
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public int X { get { return state.X; } internal set { state.X = value; } }
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/// <summary>
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/// Gets the Y position of the mouse for the event.
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/// </summary>
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public int Y { get { return state.Y; } internal set { state.Y = value; } }
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/// <summary>
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/// Gets a <see cref="System.Drawing.Point"/> representing the location of the mouse for the event.
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/// </summary>
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public Point Position
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{
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get { return new Point(state.X, state.Y); }
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set
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{
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X = value.X;
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Y = value.Y;
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}
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}
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/// <summary>
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/// Gets the current <see cref="OpenTK.Input.MouseState"/>.
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/// </summary>
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public MouseState Mouse
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{
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get { return state; }
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internal set { state = value; }
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}
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#endregion
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}
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/// <summary>
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/// Defines the event data for <see cref="MouseDevice.Move"/> events.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Do not cache instances of this type outside their event handler.
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/// If necessary, you can clone an instance using the
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/// <see cref="MouseMoveEventArgs(MouseMoveEventArgs)"/> constructor.
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/// </para>
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/// </remarks>
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public class MouseMoveEventArgs : MouseEventArgs
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{
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#region Fields
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int x_delta, y_delta;
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#endregion
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#region Constructors
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/// <summary>
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/// Constructs a new <see cref="MouseMoveEventArgs"/> instance.
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/// </summary>
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public MouseMoveEventArgs() { }
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/// <summary>
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/// Constructs a new <see cref="MouseMoveEventArgs"/> instance.
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/// </summary>
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/// <param name="x">The X position.</param>
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/// <param name="y">The Y position.</param>
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/// <param name="xDelta">The change in X position produced by this event.</param>
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/// <param name="yDelta">The change in Y position produced by this event.</param>
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public MouseMoveEventArgs(int x, int y, int xDelta, int yDelta)
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: base(x, y)
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{
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XDelta = xDelta;
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YDelta = yDelta;
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}
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/// <summary>
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/// Constructs a new <see cref="MouseMoveEventArgs"/> instance.
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/// </summary>
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/// <param name="args">The <see cref="MouseMoveEventArgs"/> instance to clone.</param>
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public MouseMoveEventArgs(MouseMoveEventArgs args)
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: this(args.X, args.Y, args.XDelta, args.YDelta)
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{
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}
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#endregion
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#region Public Members
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/// <summary>
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/// Gets the change in X position produced by this event.
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/// </summary>
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public int XDelta { get { return x_delta; } internal set { x_delta = value; } }
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/// <summary>
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/// Gets the change in Y position produced by this event.
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/// </summary>
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public int YDelta { get { return y_delta; } internal set { y_delta = value; } }
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#endregion
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}
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/// <summary>
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/// Defines the event data for <see cref="MouseDevice.ButtonDown"/> and <see cref="MouseDevice.ButtonUp"/> events.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Do not cache instances of this type outside their event handler.
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/// If necessary, you can clone an instance using the
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/// <see cref="MouseButtonEventArgs(MouseButtonEventArgs)"/> constructor.
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/// </para>
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/// </remarks>
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public class MouseButtonEventArgs : MouseEventArgs
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{
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#region Fields
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MouseButton button;
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bool pressed;
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#endregion
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#region Constructors
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/// <summary>
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/// Constructs a new <see cref="MouseButtonEventArgs"/> instance.
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/// </summary>
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public MouseButtonEventArgs() { }
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/// <summary>
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/// Constructs a new <see cref="MouseButtonEventArgs"/> instance.
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/// </summary>
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/// <param name="x">The X position.</param>
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/// <param name="y">The Y position.</param>
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/// <param name="button">The mouse button for the event.</param>
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/// <param name="pressed">The current state of the button.</param>
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public MouseButtonEventArgs(int x, int y, MouseButton button, bool pressed)
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: base(x, y)
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{
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this.button = button;
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this.pressed = pressed;
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}
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/// <summary>
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/// Constructs a new <see cref="MouseButtonEventArgs"/> instance.
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/// </summary>
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/// <param name="args">The <see cref="MouseButtonEventArgs"/> instance to clone.</param>
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public MouseButtonEventArgs(MouseButtonEventArgs args)
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: this(args.X, args.Y, args.Button, args.IsPressed)
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{
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}
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#endregion
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#region Public Members
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/// <summary>
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/// Gets the <see cref="MouseButton"/> that triggered this event.
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/// </summary>
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public MouseButton Button { get { return button; } internal set { button = value; } }
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/// <summary>
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/// Gets a System.Boolean representing the state of the mouse button for the event.
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/// </summary>
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public bool IsPressed
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{
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get { return GetButton(Button) == ButtonState.Pressed; }
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internal set { SetButton(Button, value ? ButtonState.Pressed : ButtonState.Released); }
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}
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#endregion
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}
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/// <summary>
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/// Defines the event data for <see cref="MouseDevice.WheelChanged"/> events.
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/// </summary>
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/// <remarks>
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/// <para>
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/// Do not cache instances of this type outside their event handler.
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/// If necessary, you can clone an instance using the
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/// <see cref="MouseWheelEventArgs(MouseWheelEventArgs)"/> constructor.
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/// </para>
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/// </remarks>
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public class MouseWheelEventArgs : MouseEventArgs
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{
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#region Fields
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float delta;
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#endregion
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#region Constructors
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/// <summary>
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/// Constructs a new <see cref="MouseWheelEventArgs"/> instance.
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/// </summary>
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public MouseWheelEventArgs() { }
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/// <summary>
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/// Constructs a new <see cref="MouseWheelEventArgs"/> instance.
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/// </summary>
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/// <param name="x">The X position.</param>
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/// <param name="y">The Y position.</param>
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/// <param name="value">The value of the wheel.</param>
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/// <param name="delta">The change in value of the wheel for this event.</param>
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public MouseWheelEventArgs(int x, int y, int value, int delta)
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: base(x, y)
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{
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Mouse.SetScrollAbsolute(Mouse.Scroll.X, value);
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this.delta = delta;
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}
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/// <summary>
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/// Constructs a new <see cref="MouseWheelEventArgs"/> instance.
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/// </summary>
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/// <param name="args">The <see cref="MouseWheelEventArgs"/> instance to clone.</param>
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public MouseWheelEventArgs(MouseWheelEventArgs args)
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: this(args.X, args.Y, args.Value, args.Delta)
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{
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}
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#endregion
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#region Public Members
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/// <summary>
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/// Gets the value of the wheel in integer units.
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/// To support high-precision mice, it is recommended to use <see cref="ValuePrecise"/> instead.
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/// </summary>
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public int Value { get { return (int)Math.Round(Mouse.Scroll.Y, MidpointRounding.AwayFromZero); } }
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/// <summary>
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/// Gets the change in value of the wheel for this event in integer units.
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/// To support high-precision mice, it is recommended to use <see cref="DeltaPrecise"/> instead.
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/// </summary>
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public int Delta { get { return (int)Math.Round(delta, MidpointRounding.AwayFromZero); } }
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/// <summary>
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/// Gets the precise value of the wheel in floating-point units.
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/// </summary>
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public float ValuePrecise
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{
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get { return Mouse.Scroll.Y; }
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internal set { Mouse.SetScrollAbsolute(Mouse.Scroll.X, value); }
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}
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/// <summary>
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/// Gets the precise change in value of the wheel for this event in floating-point units.
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/// </summary>
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public float DeltaPrecise { get { return delta; } internal set { delta = value; } }
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#endregion
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}
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}
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