Fixed context menu items and margins in text visualizers (#216)

Author: chitsaw

Sources/Visualization/Microsoft.Psi.Visualization.Windows/Views/VisualizationContainerView.xaml.cs

@@ -277,7 +277,7 @@ private void OnContextMenuOpening(object sender, ContextMenuEventArgs e)
             // Run a hit test at the mouse cursor
             VisualTreeHelper.HitTest(
                 this,
-                null,
+                new HitTestFilterCallback(this.ContestMenuHitTestFilter),
                 new HitTestResultCallback(this.ContextMenuHitTestResult),
                 new PointHitTestParameters(Mouse.GetPosition(this)));
 
@@ -321,6 +321,17 @@ private void OnContextMenuOpening(object sender, ContextMenuEventArgs e)
             }
         }
 
+        // Filter to exclude invisible UI elements from hit test
+        private HitTestFilterBehavior ContestMenuHitTestFilter(DependencyObject dependencyObject)
+        {
+            if (dependencyObject is UIElement element && !element.IsVisible)
+            {
+                return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
+            }
+
+            return HitTestFilterBehavior.Continue;
+        }
+
         // Return the result of the hit test to the callback.
         private HitTestResultBehavior ContextMenuHitTestResult(HitTestResult result)
         {

Sources/Visualization/Microsoft.Psi.Visualization.Windows/Views/Visuals2D/IFormattableVisualizationObjectView.xaml

@@ -27,7 +27,7 @@
         </Border>
         <Border Grid.Row="1" Padding="5,2,0,0">
             <Grid>
-                <TextBox Text="{Binding Path=FormattedData, Mode=OneWay}" IsReadOnly="True" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"/>
+                <TextBox Text="{Binding Path=FormattedData, Mode=OneWay}" Margin="{Binding Margin}" IsReadOnly="True" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"/>
             </Grid>
         </Border>
     </Grid>

Sources/Visualization/Microsoft.Psi.Visualization.Windows/Views/Visuals2D/TextVisualizationObjectView.xaml

@@ -26,7 +26,7 @@
         </Border>
         <Border Grid.Row="1" Padding="5,2,0,0">
             <Grid>
-                <TextBox Text="{Binding Path=CurrentValue.Data, Mode=OneWay}" IsReadOnly="True" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"/>
+                <TextBox Text="{Binding Path=CurrentValue.Data, Mode=OneWay}" Margin="{Binding Margin}" IsReadOnly="True" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto"/>
             </Grid>
         </Border>
     </Grid>

Sources/Visualization/Microsoft.Psi.Visualization.Windows/VisualizationObjects/IFormattableVisualizationObject.cs

@@ -19,7 +19,7 @@ namespace Microsoft.Psi.Visualization.VisualizationObjects
     [VisualizationPanelType(VisualizationPanelType.Canvas)]
     public class IFormattableVisualizationObject : StreamValueVisualizationObject<IFormattable>
     {
-        private int margin = 10;
+        private Thickness margin = new (5, 0, 0, 0);
         private string formatString = default;
         private string formattedData = default;
 
@@ -32,8 +32,8 @@ public class IFormattableVisualizationObject : StreamValueVisualizationObject<IF
         /// </summary>
         [DataMember]
         [DisplayName("Margin")]
-        [Description("The margin in pixels.")]
-        public int Margin
+        [Description("The left, top, right and bottom margin in pixels.")]
+        public Thickness Margin
         {
             get { return this.margin; }
             set { this.Set(nameof(this.Margin), ref this.margin, value); }

Sources/Visualization/Microsoft.Psi.Visualization.Windows/VisualizationObjects/TextVisualizationObject.cs

@@ -3,6 +3,7 @@
 
 namespace Microsoft.Psi.Visualization.VisualizationObjects
 {
+    using System.ComponentModel;
     using System.Runtime.Serialization;
     using System.Windows;
     using Microsoft.Psi.Visualization.Helpers;
@@ -16,8 +17,22 @@ namespace Microsoft.Psi.Visualization.VisualizationObjects
     [VisualizationPanelType(VisualizationPanelType.Canvas)]
     public class TextVisualizationObject : StreamValueVisualizationObject<string>
     {
+        private Thickness margin = new (5, 0, 0, 0);
+
         /// <inheritdoc />
         [IgnoreDataMember]
         public override DataTemplate DefaultViewTemplate => XamlHelper.CreateTemplate(this.GetType(), typeof(TextVisualizationObjectView));
+
+        /// <summary>
+        /// Gets or sets the margin.
+        /// </summary>
+        [DataMember]
+        [DisplayName("Margin")]
+        [Description("The left, top, right and bottom margin in pixels.")]
+        public Thickness Margin
+        {
+            get { return this.margin; }
+            set { this.Set(nameof(this.Margin), ref this.margin, value); }
+        }
     }
 }