private static string GetValueExpression(object declaredDefaultValue, List <UsingStatement> usings)
{
if (declaredDefaultValue is null)
{
throw new ArgumentNullException(nameof(declaredDefaultValue));
}
return(declaredDefaultValue switch
{
bool boolValue => boolValue ? "true" : "false",
int intValue => GetIntValueExpression(intValue),
float floatValue => floatValue.ToString("F", CultureInfo.InvariantCulture) + "f", // "Fixed-Point": https://docs.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings#the-fixed-point-f-format-specifier
double doubleValue => doubleValue.ToString("F", CultureInfo.InvariantCulture), // "Fixed-Point": https://docs.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings#the-fixed-point-f-format-specifier
Enum enumValue => GetTypeNameAndAddNamespace(enumValue.GetType(), usings) + "." + Enum.GetName(enumValue.GetType(), declaredDefaultValue),
XF.GridLength gridLengthValue => GetGridLengthValueExpression(gridLengthValue, usings),
XF.LayoutOptions layoutOptionsValue => GetLayoutOptionsValueExpression(layoutOptionsValue, usings),
string stringValue => $@"""{stringValue}""",
// TODO: More types here
_ => null,
});
private static string GetValueExpression(object declaredDefaultValue, List <UsingStatement> usings)
{
if (declaredDefaultValue is null)
{
throw new ArgumentNullException(nameof(declaredDefaultValue));
}
return(declaredDefaultValue switch
{
bool boolValue => boolValue ? "true" : "false",
int intValue => GetIntValueExpression(intValue),
float floatValue => floatValue.ToString("F", CultureInfo.InvariantCulture) + "f", // "Fixed-Point": https://docs.microsoft.com/dotnet/standard/base-types/standard-numeric-format-strings#the-fixed-point-f-format-specifier
double doubleValue => doubleValue.ToString("F", CultureInfo.InvariantCulture), // "Fixed-Point": https://docs.microsoft.com/dotnet/standard/base-types/standard-numeric-format-strings#the-fixed-point-f-format-specifier
Enum enumValue => GetTypeNameAndAddNamespace(enumValue.GetType(), usings) + "." + Enum.GetName(enumValue.GetType(), declaredDefaultValue),
XF.GridLength gridLengthValue => GetGridLengthValueExpression(gridLengthValue, usings),
XF.LayoutOptions layoutOptionsValue => GetLayoutOptionsValueExpression(layoutOptionsValue, usings),
string stringValue => $@"""{stringValue}""",
DateTime dateTimeValue => $"global::System.DateTime.Parse(\"{dateTimeValue.ToString("o", CultureInfo.InvariantCulture)}\", null, global::System.Globalization.DateTimeStyles.RoundtripKind)", // "Round-trip": https://docs.microsoft.com/dotnet/standard/base-types/how-to-round-trip-date-and-time-values
TimeSpan timeSpanValue => timeSpanValue.Ticks.ToString(CultureInfo.InvariantCulture),
// TODO: More types here
_ => null,
});
private static TableRow CreateRow (Context context, View leftTextView, View rightTextView, GridLength leftColumnWidth, GridLength rightColumnWidth)
{
var tableRow = new TableRow (context);
var linearLayout = new LinearLayout (context) { WeightSum = (float)1.0 };
//This is a little counter intuitive, but the Left Text View needs to be set to the Right Column Width
var leftTextViewLayout = new LinearLayout.LayoutParams (ViewGroup.LayoutParams.MatchParent,
ViewGroup.LayoutParams.MatchParent) { Weight = (float)rightColumnWidth.Value };
leftTextView.LayoutParameters = leftTextViewLayout;
linearLayout.AddView (leftTextView);
var rightTextViewLayout = new LinearLayout.LayoutParams (ViewGroup.LayoutParams.MatchParent,
ViewGroup.LayoutParams.MatchParent) { Weight = (float)leftColumnWidth.Value };
rightTextView.LayoutParameters = rightTextViewLayout;
linearLayout.AddView (rightTextView);
tableRow.AddView (linearLayout);
return tableRow;
}
bool Equals(GridLength other)
{
return GridUnitType == other.GridUnitType && Math.Abs(Value - other.Value) < double.Epsilon;
}
internal override void ComputeConstraintForView(View view)
{
LayoutOptions vOptions = view.VerticalOptions;
LayoutOptions hOptions = view.HorizontalOptions;
var result = LayoutConstraint.None;
if (_rows == null || _columns == null)
{
EnsureRowsColumnsInitialized();
}
if (vOptions.Alignment == LayoutAlignment.Fill)
{
int row = GetRow(view);
int rowSpan = GetRowSpan(view);
List <RowDefinition> rowDefinitions = _rows;
var canFix = true;
for (int i = row; i < row + rowSpan && i < rowDefinitions.Count; i++)
{
GridLength height = rowDefinitions[i].Height;
if (height.IsAuto)
{
canFix = false;
break;
}
if ((Constraint & LayoutConstraint.VerticallyFixed) == 0 && height.IsStar)
{
canFix = false;
break;
}
}
if (canFix)
{
result |= LayoutConstraint.VerticallyFixed;
}
}
if (hOptions.Alignment == LayoutAlignment.Fill)
{
int col = GetColumn(view);
int colSpan = GetColumnSpan(view);
List <ColumnDefinition> columnDefinitions = _columns;
var canFix = true;
for (int i = col; i < col + colSpan && i < columnDefinitions.Count; i++)
{
GridLength width = columnDefinitions[i].Width;
if (width.IsAuto)
{
canFix = false;
break;
}
if ((Constraint & LayoutConstraint.HorizontallyFixed) == 0 && width.IsStar)
{
canFix = false;
break;
}
}
if (canFix)
{
result |= LayoutConstraint.HorizontallyFixed;
}
}
view.ComputedConstraint = result;
}
