private void CheckOrientation(Simple3DVector filteredAcceleration)
{
DeviceOrientation deviceOrientation1 = DeviceOrientation.Unknown;
double x = filteredAcceleration.X;
double y = filteredAcceleration.Y;
double z = filteredAcceleration.Z;
double num1 = Math.Sqrt(x * x + y * y + z * z);
double num2 = x / num1;
double num3 = y / num1;
double num4 = z / num1;
if (this._currentOrientation == DeviceOrientation.Unknown)
{
deviceOrientation1 = num4 >= 0.0 ? DeviceOrientation.ScreenSideDown : DeviceOrientation.ScreenSideUp;
}
if (num3 < -0.8)
{
deviceOrientation1 = DeviceOrientation.PortraitRightSideUp;
}
else if (num3 > 0.8)
{
deviceOrientation1 = DeviceOrientation.PortraitUpSideDown;
}
else if (num2 < -0.8)
{
deviceOrientation1 = DeviceOrientation.LandscapeLeft;
}
else if (num2 > 0.8)
{
deviceOrientation1 = DeviceOrientation.LandscapeRight;
}
else if (num4 < -0.8)
{
deviceOrientation1 = DeviceOrientation.ScreenSideUp;
}
else if (num4 > 0.8)
{
deviceOrientation1 = DeviceOrientation.ScreenSideDown;
}
DeviceOrientation deviceOrientation2 = DeviceOrientation.Unknown;
bool flag = false;
if (deviceOrientation1 != DeviceOrientation.Unknown)
{
lock (this)
{
this._currentOrientation = deviceOrientation1;
if (this._previousOrientation != this._currentOrientation)
{
deviceOrientation2 = this._previousOrientation;
this._previousOrientation = this._currentOrientation;
flag = true;
}
}
}
if (!flag)
{
return;
}
DeviceOrientationChangedEventArgs e = new DeviceOrientationChangedEventArgs();
e.CurrentOrientation = deviceOrientation1;
e.PreviousOrientation = deviceOrientation2;
// ISSUE: reference to a compiler-generated field
if (this.OrientationChanged == null)
{
return;
}
// ISSUE: reference to a compiler-generated field
this.OrientationChanged(this, e);
}
/// <summary>
/// Main orientation change detection logic
/// </summary>
/// <param name="filteredAcceleration">current filtered acceleration</param>
private void CheckOrientation(Simple3DVector filteredAcceleration)
{
DeviceOrientation currentOrientation = DeviceOrientation.Unknown;
double xAcceleration = filteredAcceleration.X;
double yAcceleration = filteredAcceleration.Y;
double zAcceleration = filteredAcceleration.Z;
// Normalize acceleration to 1g
double magnitudeXYZ = Math.Sqrt(xAcceleration * xAcceleration + yAcceleration * yAcceleration + zAcceleration * zAcceleration);
xAcceleration = xAcceleration / magnitudeXYZ;
yAcceleration = yAcceleration / magnitudeXYZ;
zAcceleration = zAcceleration / magnitudeXYZ;
if (_currentOrientation == DeviceOrientation.Unknown)
{ // No pre-existing orientation: default is flat
if (zAcceleration < 0)
{
currentOrientation = DeviceOrientation.ScreenSideUp;
}
else
{
currentOrientation = DeviceOrientation.ScreenSideDown;
}
}
if (yAcceleration < -tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.PortraitRightSideUp;
}
else if (yAcceleration > tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.PortraitUpSideDown;
}
else if (xAcceleration < -tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.LandscapeLeft;
}
else if (xAcceleration > tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.LandscapeRight;
}
else if (zAcceleration < -tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.ScreenSideUp;
}
else if (zAcceleration > tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.ScreenSideDown;
}
DeviceOrientation previousOrientation = DeviceOrientation.Unknown;
bool fireEvent = false;
if (currentOrientation != DeviceOrientation.Unknown)
{
lock (this) // Keep the lock as brief as posible
{
_currentOrientation = currentOrientation;
if (_previousOrientation != _currentOrientation)
{
previousOrientation = _previousOrientation;
_previousOrientation = _currentOrientation;
fireEvent = true;
}
}
}
if (fireEvent)
{
DeviceOrientationChangedEventArgs orientationEventArgs = new DeviceOrientationChangedEventArgs();
orientationEventArgs.CurrentOrientation = currentOrientation;
orientationEventArgs.PreviousOrientation = previousOrientation;
if (OrientationChanged != null)
{
OrientationChanged(this, orientationEventArgs);
}
}
}
/// <summary>
/// Main orientation change detection logic
/// </summary>
/// <param name="filteredAcceleration">current filtered acceleration</param>
private void CheckOrientation(Simple3DVector filteredAcceleration)
{
DeviceOrientation currentOrientation = DeviceOrientation.Unknown;
double xAcceleration = filteredAcceleration.X;
double yAcceleration = filteredAcceleration.Y;
double zAcceleration = filteredAcceleration.Z;
// Normalize acceleration to 1g
double magnitudeXYZ = Math.Sqrt(xAcceleration * xAcceleration + yAcceleration * yAcceleration + zAcceleration * zAcceleration);
xAcceleration = xAcceleration / magnitudeXYZ;
yAcceleration = yAcceleration / magnitudeXYZ;
zAcceleration = zAcceleration / magnitudeXYZ;
if (_currentOrientation == DeviceOrientation.Unknown)
{ // No pre-existing orientation: default is flat
if (zAcceleration < 0)
{
currentOrientation = DeviceOrientation.ScreenSideUp;
}
else
{
currentOrientation = DeviceOrientation.ScreenSideDown;
}
}
if (yAcceleration < -tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.PortraitRightSideUp;
}
else if (yAcceleration > tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.PortraitUpSideDown;
}
else if (xAcceleration < -tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.LandscapeLeft;
}
else if (xAcceleration > tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.LandscapeRight;
}
else if (zAcceleration < -tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.ScreenSideUp;
}
else if (zAcceleration > tiltAccelerationThreshold)
{
currentOrientation = DeviceOrientation.ScreenSideDown;
}
DeviceOrientation previousOrientation = DeviceOrientation.Unknown;
bool fireEvent = false;
if (currentOrientation != DeviceOrientation.Unknown)
{
lock (this) // Keep the lock as brief as posible
{
_currentOrientation = currentOrientation;
if (_previousOrientation != _currentOrientation)
{
previousOrientation = _previousOrientation;
_previousOrientation = _currentOrientation;
fireEvent = true;
}
}
}
if (fireEvent)
{
DeviceOrientationChangedEventArgs orientationEventArgs = new DeviceOrientationChangedEventArgs();
orientationEventArgs.CurrentOrientation = currentOrientation;
orientationEventArgs.PreviousOrientation = previousOrientation;
if (OrientationChanged != null)
{
OrientationChanged(this, orientationEventArgs);
}
}
}
