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 }