/// <summary>
/// Calculates the boundaries of a text string in screen coordinates.
/// </summary>
/// <param name="text">the text string</param>
/// <param name="coord">the world x-coordinate of where the text should be placed</param>
/// <returns>the screen coordinates</returns>
internal static WPF.Rect GetTextBounds(string text, WPF::Point coord, Typeface typeface, double emSize)
{
var ft = new FormattedText(text, CultureInfo.CurrentCulture, WPF.FlowDirection.LeftToRight, typeface, emSize, Brushes.Black);
var bounds = new WPF.Rect(0, 0, ft.Width, ft.Height);
double widthPad = 3;
double heightPad = 1;
double width = bounds.Width + widthPad;
double height = bounds.Height + heightPad;
var point = coord;
return(new WPF.Rect(point.X - width / 2, point.Y - height / 2, width, height));
}
void AssertCloseTo(WPF::Point actual, WPF::Point expected, double epsilon)
{
Assert.AreEqual(expected.X, actual.X, epsilon);
Assert.AreEqual(expected.Y, actual.Y, epsilon);
}
