src/Tizen.NUI/src/internal/XamlBinding/ThicknessTypeConverter.cs

   1 using System;
   2 using System.Globalization;
   3
   4 namespace Tizen.NUI.Binding
   5 {
   6         // [Xaml.ProvideCompiled("Xamarin.Forms.Core.XamlC.ThicknessTypeConverter")]
   7         [Xaml.TypeConversion(typeof(Thickness))]
   8         internal class ThicknessTypeConverter : TypeConverter
   9         {
  10                 public override object ConvertFromInvariantString(string value)
  11                 {
  12                         if (value != null) {
  13                                 value = value.Trim();
  14                                 if (value.Contains(",")) { //Xaml
  15                                         var thickness = value.Split(',');
  16                                         switch (thickness.Length) {
  17                                         case 2:
  18                                                 if (   double.TryParse(thickness[0], NumberStyles.Number, CultureInfo.InvariantCulture, out double h)
  19                                                         && double.TryParse(thickness[1], NumberStyles.Number, CultureInfo.InvariantCulture, out double v))
  20                                                         return new Thickness(h, v);
  21                                                 break;
  22                                         case 4:
  23                                                 if (   double.TryParse(thickness[0], NumberStyles.Number, CultureInfo.InvariantCulture, out double l)
  24                                                         && double.TryParse(thickness[1], NumberStyles.Number, CultureInfo.InvariantCulture, out double t)
  25                                                         && double.TryParse(thickness[2], NumberStyles.Number, CultureInfo.InvariantCulture, out double r)
  26                                                         && double.TryParse(thickness[3], NumberStyles.Number, CultureInfo.InvariantCulture, out double b))
  27                                                         return new Thickness(l, t, r, b);
  28                                                 break;
  29                                         }
  30                                 }
  31                                 else if (value.Contains(" ")) { //CSS
  32                                         var thickness = value.Split(' ');
  33                                         switch (thickness.Length) {
  34                                         case 2:
  35                                                 if (   double.TryParse(thickness[0], NumberStyles.Number, CultureInfo.InvariantCulture, out double v)
  36                                                         && double.TryParse(thickness[1], NumberStyles.Number, CultureInfo.InvariantCulture, out double h))
  37                                                         return new Thickness(h, v);
  38                                                 break;
  39                                         case 3:
  40                                                 if (   double.TryParse(thickness[0], NumberStyles.Number, CultureInfo.InvariantCulture, out double t)
  41                                                         && double.TryParse(thickness[1], NumberStyles.Number, CultureInfo.InvariantCulture, out h)
  42                                                         && double.TryParse(thickness[2], NumberStyles.Number, CultureInfo.InvariantCulture, out double b))
  43                                                         return new Thickness(h, t, h, b);
  44                                                 break;
  45                                         case 4:
  46                                                 if (   double.TryParse(thickness[0], NumberStyles.Number, CultureInfo.InvariantCulture, out t)
  47                                                         && double.TryParse(thickness[1], NumberStyles.Number, CultureInfo.InvariantCulture, out double r)
  48                                                         && double.TryParse(thickness[2], NumberStyles.Number, CultureInfo.InvariantCulture, out b)
  49                                                         && double.TryParse(thickness[3], NumberStyles.Number, CultureInfo.InvariantCulture, out double l))
  50                                                         return new Thickness(l, t, r, b);
  51                                                 break;
  52                                         }
  53                                 }
  54                                 else { //single uniform thickness
  55                                         if (double.TryParse(value, NumberStyles.Number, CultureInfo.InvariantCulture, out double l))
  56                                                 return new Thickness(l);
  57                                 }
  58                         }
  59
  60                         throw new InvalidOperationException($"Cannot convert \"{value}\" into {typeof(Thickness)}");
  61                 }
  62         }
  63 }