zhangjiehua / cat

some project examples about Kinect with C# language

/* some project examples about Kinect with C# language */

   private bool CheckForClickHold(Joint hand)
    {
        // This does one handed click when you hover for the allotted time.  It gives a false positive when you hover accidentally.
        var x = hand.Position.X;
        var y = hand.Position.Y;

        var screenwidth = (int)SystemParameters.PrimaryScreenWidth;
        var screenheight = (int)SystemParameters.PrimaryScreenHeight;
        var clickwidth = (int)(screenwidth * ClickHoldingRectThreshold);
        var clickheight = (int)(screenheight * ClickHoldingRectThreshold);

        var newClickHold = new Rect(x - clickwidth, y - clickheight, clickwidth * 2, clickheight * 2);

        if (_clickHoldingLastRect != Rect.Empty)
        {
            if (newClickHold.IntersectsWith(_clickHoldingLastRect))
            {
                if ((int)_clickHoldingTimer.ElapsedMilliseconds > (ClickDelay.Value * 1000))
                {
                    _clickHoldingTimer.Stop();
                    _clickHoldingLastRect = Rect.Empty;
                    return true;
                }

                if (!_clickHoldingTimer.IsRunning)
                {
                    _clickHoldingTimer.Reset();
                    _clickHoldingTimer.Start();
                }
                return false;
            }

            _clickHoldingTimer.Stop();
            _clickHoldingLastRect = newClickHold;
            return false;
        }

        _clickHoldingLastRect = newClickHold;
        if (!_clickHoldingTimer.IsRunning)
        {
            _clickHoldingTimer.Reset();
            _clickHoldingTimer.Start();
        }
        return false;
    }