Reverting fix from #2454 (#2491)

Rather than trying to apply the appropriate clip will instead just allow clipping to be toggled on and off. Default will be off.

Author: Keboo

MaterialDesignThemes.Wpf/Card.cs

@@ -37,6 +37,16 @@ public static readonly DependencyProperty ContentClipProperty
             = ContentClipPropertyKey.DependencyProperty;
         #endregion
 
+
+        public static readonly DependencyProperty ClipContentProperty =
+            DependencyProperty.Register("ClipContent", typeof(bool), typeof(Card), new PropertyMetadata(false));
+
+        public bool ClipContent
+        {
+            get => (bool)GetValue(ClipContentProperty);
+            set => SetValue(ClipContentProperty, value);
+        }
+
         static Card()
         {
             DefaultStyleKeyProperty.OverrideMetadata(typeof(Card), new FrameworkPropertyMetadata(typeof(Card)));

MaterialDesignThemes.Wpf/Converters/SizeToRectConverter.cs

@@ -5,6 +5,7 @@
 
 namespace MaterialDesignThemes.Wpf.Converters
 {
+    [Obsolete("This will be removed in the 5.0 release as it is no longer used")]
     public class CardClipConverter : IMultiValueConverter
     {
         /// <summary>

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.Card.xaml

@@ -6,14 +6,12 @@
     <ResourceDictionary.MergedDictionaries>
         <ResourceDictionary Source="pack://application:,,,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Shadows.xaml" />
     </ResourceDictionary.MergedDictionaries>
-    
-    <converters:CardClipConverter x:Key="CardClipConverter" />
 
     <ControlTemplate TargetType="{x:Type wpf:Card}" x:Key="CardTemplate">
         <ControlTemplate.Resources>
             <converters:ShadowEdgeConverter x:Key="ShadowEdgeConverter" />
         </ControlTemplate.Resources>
-        <Grid Background="Transparent" Clip="{TemplateBinding ContentClip}">
+        <Grid Background="Transparent">
             <AdornerDecorator CacheMode="{Binding RelativeSource={RelativeSource Self}, Path=(wpf:ShadowAssist.CacheMode)}">
                 <AdornerDecorator.OpacityMask>
                     <MultiBinding Converter="{StaticResource ShadowEdgeConverter}">
@@ -39,6 +37,11 @@
                 ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}">
             </ContentPresenter>
         </Grid>
+        <ControlTemplate.Triggers>
+            <Trigger Property="ClipContent" Value="True">
+                <Setter Property="Clip" TargetName="ContentPresenter" Value="{Binding ContentClip, RelativeSource={RelativeSource TemplatedParent}}" />
+            </Trigger>
+        </ControlTemplate.Triggers>
     </ControlTemplate>
     <Style TargetType="{x:Type wpf:Card}">
         <Setter Property="Template" Value="{StaticResource CardTemplate}" />