RawStylusSystemGestureInputReport.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Input / Stylus / RawStylusSystemGestureInputReport.cs / 1305600 / RawStylusSystemGestureInputReport.cs
                        

                        
                            using System; 
using System.ComponentModel;
using System.Security;
using System.Security.Permissions;
 
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID; 
 
namespace System.Windows.Input
{ 
    /////////////////////////////////////////////////////////////////////////
    /// 
    ///     [TBS]
    ///  
    internal class RawStylusSystemGestureInputReport : RawStylusInputReport
    { 
        // We don't want to publically expose the double tap system gesture so we define it here. 
        internal const SystemGesture InternalSystemGestureDoubleTap = (SystemGesture)0x11;
 
        /// 
        ///     Validates whether a given SystemGesture has an allowable value.
        /// 
        /// The SysemGesture to test. 
        /// Whether Flick is allowed.
        /// Whether DoubleTab is allowed. 
        /// True if the SystemGesture matches an allowed gesture. False otherwise. 
        internal static bool IsValidSystemGesture(SystemGesture systemGesture, bool allowFlick, bool allowDoubleTap)
        { 
            switch (systemGesture)
            {
                case SystemGesture.None:
                case SystemGesture.Tap: 
                case SystemGesture.RightTap:
                case SystemGesture.Drag: 
                case SystemGesture.RightDrag: 
                case SystemGesture.HoldEnter:
                case SystemGesture.HoldLeave: 
                case SystemGesture.HoverEnter:
                case SystemGesture.HoverLeave:
                case SystemGesture.TwoFingerTap:
#if ROLLOVER_IMPLEMENTED 
                case SystemGesture.Rollover:
#endif 
                    return true; 

                case SystemGesture.Flick: 
                    return allowFlick;

                case InternalSystemGestureDoubleTap:
                    return allowDoubleTap; 

                default: 
                    return false; 
            }
        } 

        /////////////////////////////////////////////////////////////////////
        /// 
        ///     Constructs an instance of the RawStylusSystemGestureInputReport class. 
        /// 
        ///  
        ///     The mode in which the input is being provided. 
        /// 
        ///  
        ///     The time when the input occured.
        /// 
        /// 
        ///     The PresentationSource over which the stylus moved. 
        /// 
        ///  
        ///     PenContext that generated this event. 
        /// 
        ///  
        ///     tablet id.
        /// 
        /// 
        ///     Stylus device id. 
        /// 
        ///  
        ///     System Gesture. 
        /// 
        ///  
        ///     X location of the system gesture (in tablet device coordindates).
        /// 
        /// 
        ///     Y location of the system gesture (in tablet device coordindates). 
        /// 
        ///  
        ///     Button state info data. 
        /// 
        ///  
        ///     Critical:This handles critical data in the form of PresentationSource
        ///     TreatAsSafe:There are demands on the critical data(PresentationSource)
        /// 
        [SecurityCritical,SecurityTreatAsSafe] 
        internal RawStylusSystemGestureInputReport(
            InputMode           mode, 
            int           	    timestamp, 
            PresentationSource  inputSource,
            PenContext          penContext, 
            int                 tabletId,
            int                 stylusDeviceId,
            SystemGesture       systemGesture,
            int                 gestureX, 
            int                 gestureY,
            int                 buttonState) 
            : base( mode, timestamp, inputSource, 
                    penContext, RawStylusActions.SystemGesture,
                    tabletId, stylusDeviceId, new int[] {}) 
        {
            if (!RawStylusSystemGestureInputReport.IsValidSystemGesture(systemGesture, true, true))
            {
                throw new InvalidEnumArgumentException(SR.Get( SRID.Enum_Invalid, "systemGesture")); 
            }
 
            _id             = systemGesture; 
            _gestureX       = gestureX;
            _gestureY       = gestureY; 
            _buttonState    = buttonState;
        }

        ///////////////////////////////////////////////////////////////////// 
        /// 
        ///     Read-only access to the stylus gesture id. 
        ///  
        internal SystemGesture SystemGesture { get { return _id; } }
 
        /////////////////////////////////////////////////////////////////////
        /// 
        ///     Read-only access to the X location of the system gesture
        ///      in tablet device coordinates. 
        /// 
        internal int GestureX { get { return _gestureX; } } 
 
        /////////////////////////////////////////////////////////////////////
        ///  
        ///     Read-only access to the Y location of the system gesture
        ///      in tablet device coordinates.
        /// 
        internal int GestureY { get { return _gestureY; } } 

        ///////////////////////////////////////////////////////////////////// 
        ///  
        ///     Read-only access to the button state info (useful for flicks).
        ///  
        internal int  ButtonState { get { return _buttonState; } }

        /////////////////////////////////////////////////////////////////////
 
        SystemGesture   _id;
        int             _gestureX;// gesture location in tablet device coordinates 
        int             _gestureY; 
        int             _buttonState;
 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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