public void TestPointOffset ()
{
var point = new Point (2, 2);
point = point.Offset (10, 20);
Assert.AreEqual (new Point (12, 22), point);
}
/// <summary>
/// moves current position into map center
/// </summary>
internal void GoToCurrentPositionOnZoom()
{
// reset stuff
renderOffset = Point.Empty;
centerTileXYLocationLast = Point.Empty;
dragPoint = Point.Empty;
// goto location and centering
if(MouseWheelZooming)
{
if(MouseWheelZoomType != MouseWheelZoomType.MousePositionWithoutCenter)
{
Point pt = new Point(-(CurrentPositionGPixel.X - Width / 2), -(CurrentPositionGPixel.Y - Height / 2));
renderOffset.X = pt.X - dragPoint.X;
renderOffset.Y = pt.Y - dragPoint.Y;
}
else // without centering
{
renderOffset.X = -CurrentPositionGPixel.X - dragPoint.X;
renderOffset.Y = -CurrentPositionGPixel.Y - dragPoint.Y;
renderOffset.Offset(mouseLastZoom);
}
}
else // use current map center
{
mouseLastZoom = Point.Empty;
Point pt = new Point(-(CurrentPositionGPixel.X - Width / 2), -(CurrentPositionGPixel.Y - Height / 2));
renderOffset.X = pt.X - dragPoint.X;
renderOffset.Y = pt.Y - dragPoint.Y;
}
UpdateCenterTileXYLocation();
}
