screenorientation.js Example File

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 function printOrientation(orientation) {
     var orientationString;
     if (orientation == Orientation.Portrait) {
         orientationString = "Portrait";
     } else if (orientation == Orientation.Landscape) {
         orientationString = "Landscape";
     } else if (orientation == Orientation.PortraitInverted) {
         orientationString = "Portrait inverted";
     } else if (orientation == Orientation.LandscapeInverted) {
         orientationString = "Landscape inverted";
     } else {
         orientationString = "UnknownOrientation";
     }
     return orientationString;
 }

 function getAngle(orientation) {
     var angle;
     if (orientation == Orientation.Portrait) {
         angle = 0;
     } else if (orientation == Orientation.Landscape) {
         angle = 90;
     } else if (orientation == Orientation.PortraitInverted) {
         angle = 180;
     } else if (orientation == Orientation.LandscapeInverted) {
         angle = 270;
     } else {
         angle = 0;
     }
     return angle;
 }

 function parallel(firstOrientation, secondOrientation) {
     var difference = getAngle(firstOrientation) - getAngle(secondOrientation)
     return difference % 180 == 0;
 }

 function calculateGravityPoint(firstOrientation, secondOrientation) {
     var position = Qt.point(0, 0);
     var difference = getAngle(firstOrientation) - getAngle(secondOrientation)
     if (difference < 0) {
         difference = 360 + difference;
     }
     if (difference == 0) {
         position = Qt.point(0, -10);
     } else if (difference == 90) {
         position = Qt.point(-10, 0);
     } else if (difference == 180) {
         position = Qt.point(0, 1000);
     } else if (difference == 270) {
         position = Qt.point(1000, 0);
     }
     return position;
 }