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

   1 using System;
   2 using System.ComponentModel;
   3 using Tizen.NUI.Binding;
   4
   5 namespace Tizen.NUI.Binding
   6 {
   7     [EditorBrowsable(EditorBrowsableState.Never)]
   8     internal static class EffectiveFlowDirectionExtensions
   9     {
  10         internal static EffectiveFlowDirection ToEffectiveFlowDirection(this FlowDirection self, bool isExplicit = false)
  11         {
  12             switch (self)
  13             {
  14                 case FlowDirection.MatchParent:
  15                     return default(EffectiveFlowDirection);
  16
  17
  18                 case FlowDirection.LeftToRight:
  19                     if (isExplicit)
  20                     {
  21                         return EffectiveFlowDirection.Explicit;
  22                     }
  23                     else
  24                     {
  25                         return default(EffectiveFlowDirection);
  26                     }
  27
  28                 case FlowDirection.RightToLeft:
  29                     if (isExplicit)
  30                     {
  31                         return EffectiveFlowDirection.RightToLeft | EffectiveFlowDirection.Explicit;
  32                     }
  33                     else
  34                     {
  35                         return EffectiveFlowDirection.RightToLeft;
  36                     }
  37
  38                 default:
  39                     throw new InvalidOperationException($"Cannot convert {self} to {nameof(EffectiveFlowDirection)}.");
  40             }
  41         }
  42
  43         internal static FlowDirection ToFlowDirection(this EffectiveFlowDirection self)
  44         {
  45             if (self.IsLeftToRight())
  46                 return FlowDirection.LeftToRight;
  47             else
  48                 return FlowDirection.RightToLeft;
  49
  50             throw new InvalidOperationException($"Cannot convert {self} to {nameof(FlowDirection)}.");
  51         }
  52
  53         public static bool IsRightToLeft(this EffectiveFlowDirection self)
  54         {
  55             return (self & EffectiveFlowDirection.RightToLeft) == EffectiveFlowDirection.RightToLeft;
  56         }
  57
  58         public static bool IsLeftToRight(this EffectiveFlowDirection self)
  59         {
  60             return (self & EffectiveFlowDirection.RightToLeft) != EffectiveFlowDirection.RightToLeft;
  61         }
  62
  63         public static bool IsImplicit(this EffectiveFlowDirection self)
  64         {
  65             return (self & EffectiveFlowDirection.Explicit) != EffectiveFlowDirection.Explicit;
  66         }
  67
  68         public static bool IsExplicit(this EffectiveFlowDirection self)
  69         {
  70             return (self & EffectiveFlowDirection.Explicit) == EffectiveFlowDirection.Explicit;
  71         }
  72     }
  73 }