Fix issue （#150 ）

Author: yanjinhuagood

src/WPFDevelopers.Samples.Shared/ExampleViews/LoadingExample.xaml

@@ -33,9 +33,10 @@
                         wd:Loading.LoadingType="Normal"
                         Source="pack://application:,,,/WPFDevelopers.Samples;component/Resources/Images/Breathe/0.jpg" />
                     <Button
-                        Height="28"
+                        Width="50"
                         HorizontalAlignment="Center"
                         VerticalAlignment="Top"
+                        wd:ElementHelper.IsRound="True"
                         wd:Loading.IsShow="{Binding ElementName=MyCheckBox, Path=IsChecked}"
                         Content="Mask 1" />
                     <Button

src/WPFDevelopers.Shared/Controls/Loading/Loading.cs

@@ -2,6 +2,7 @@
 using System.Windows.Documents;
 using System.Windows.Media;
 using WPFDevelopers.Core;
+using WPFDevelopers.Helpers;
 using WPFDevelopers.Utilities;
 
 namespace WPFDevelopers.Controls
@@ -125,10 +126,11 @@ private static void CreateLoading(UIElement uIElement, bool isRemove = false)
 
             if (value != null)
             {
+                var cornerRadius = ElementHelper.GetCornerRadius(uIElement);
                 adornerContainer.Child = new MaskControl(uIElement)
                 {
+                    CornerRadius = cornerRadius,
                     Content = value, 
-                    //Background = ThemeManager.Instance.BackgroundBrush 
                 };
             }
 

src/WPFDevelopers.Shared/Core/Converts/WidthHeightEqualValueConverter.cs

@@ -12,8 +12,8 @@ public object Convert(object[] values, Type targetType, object parameter, Cultur
             var height = (double) values[1];
             if (width == 0 && height == 0)
                 return 0;
-            var min = Math.Min(width, height);
-            return min;
+            var max = Math.Max(width, height);
+            return max;
         }
 
         public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)

src/WPFDevelopers.Shared/Styles/Styles.Buttons.xaml

@@ -56,7 +56,7 @@
                             <Setter Property="Background" Value="{DynamicResource WD.ButtonFocusVisualColor}" />
                         </Trigger>
                         <Trigger Property="helpers:ElementHelper.IsRound" Value="True">
-                            <Setter TargetName="PART_Border" Property="CornerRadius" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}, Converter={StaticResource WD.HalfValueConverter}}" />
+                            <Setter Property="helpers:ElementHelper.CornerRadius" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}, Converter={StaticResource WD.HalfValueConverter}}" />
                             <Setter TargetName="PART_Border" Property="Width">
                                 <Setter.Value>
                                     <MultiBinding Converter="{StaticResource WD.WidthHeightEqualValueConverter}">
@@ -106,7 +106,7 @@
                         </Trigger>
                         <Trigger Property="IsMouseOver" Value="True" />
                         <Trigger Property="helpers:ElementHelper.IsRound" Value="True">
-                            <Setter TargetName="PART_Border" Property="CornerRadius" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}, Converter={StaticResource WD.HalfValueConverter}}" />
+                            <Setter Property="helpers:ElementHelper.CornerRadius" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}, Converter={StaticResource WD.HalfValueConverter}}" />
                             <Setter TargetName="PART_Border" Property="Width">
                                 <Setter.Value>
                                     <MultiBinding Converter="{StaticResource WD.WidthHeightEqualValueConverter}">
@@ -167,7 +167,7 @@
                         </Trigger>
                         <Trigger Property="helpers:ElementHelper.IsRound" Value="True">
                             <Setter Property="Padding" Value="0" />
-                            <Setter TargetName="PART_Border" Property="CornerRadius" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}, Converter={StaticResource WD.HalfValueConverter}}" />
+                            <Setter Property="helpers:ElementHelper.CornerRadius" Value="{Binding ActualWidth, RelativeSource={RelativeSource Self}, Converter={StaticResource WD.HalfValueConverter}}" />
                             <Setter TargetName="PART_Border" Property="Width">
                                 <Setter.Value>
                                     <MultiBinding Converter="{StaticResource WD.WidthHeightEqualValueConverter}">