private static bool IsSideSet(ThicknessSides sides, ThicknessSides sideToTest)
{
return((sides & sideToTest) == sideToTest);
}
public object Convert(
object value,
Type targetType,
object parameter,
CultureInfo culture)
{
if ((!targetType.IsAssignableFrom(typeof(Thickness))) ||
(value == null) ||
(value.GetType() != typeof(double)))
{
return(DependencyProperty.UnsetValue);
}
ThicknessSides sides = ThicknessSides.All; // Defaults to All when no parameter is present;
if (parameter != null)
{
Type parameterType = parameter.GetType();
if (parameterType == typeof(ThicknessSides))
{
sides = ( ThicknessSides )parameter;
}
else if (parameterType == typeof(string))
{
string stringParameter = (string)parameter;
if (!string.IsNullOrEmpty(stringParameter))
{
try
{
sides = ( ThicknessSides )Enum.Parse(typeof(ThicknessSides), stringParameter);
}
catch
{
return(DependencyProperty.UnsetValue);
}
}
}
else
{
return(DependencyProperty.UnsetValue);
}
}
double doubleValue = ( double )value;
if (this.InverseValue == true)
{
doubleValue *= -1;
}
Thickness thickness = new Thickness();
if (IsSideSet(sides, ThicknessSides.Left))
{
thickness.Left = doubleValue;
}
if (IsSideSet(sides, ThicknessSides.Top))
{
thickness.Top = doubleValue;
}
if (IsSideSet(sides, ThicknessSides.Right))
{
thickness.Right = doubleValue;
}
if (IsSideSet(sides, ThicknessSides.Bottom))
{
thickness.Bottom = doubleValue;
}
return(thickness);
}
private static bool IsSideSet( ThicknessSides sides, ThicknessSides sideToTest )
{
return ( ( sides & sideToTest ) == sideToTest );
}
