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("Tizen.NUI.Xaml.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 }