avalonia: CalendarView now has ShowColumns property; removed EmptyBlock events

InABox.Avalonia/Components/CalendarView/CalendarView.axaml

@@ -3,11 +3,13 @@
              xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
              mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
-             x:Class="InABox.Avalonia.Components.CalendarView">
+             x:Class="InABox.Avalonia.Components.CalendarView"
+             Name="Calendar">
     <Grid ColumnDefinitions="Auto,*"
           RowDefinitions="Auto,*">
         <Border Grid.Column="0" Grid.Row="0"
-                BorderBrush="LightGray" BorderThickness="0,0,1,0">
+                BorderBrush="LightGray" BorderThickness="0,0,1,0"
+                IsVisible="{Binding ShowColumns, ElementName=Calendar}">
             
         </Border>
         <Border Grid.Column="0" Grid.Row="1"
@@ -17,7 +19,8 @@
             </ScrollViewer>
         </Border>
         <Border Grid.Column="1" Grid.Row="0"
-                BorderBrush="LightGray" BorderThickness="0,0,0,1">
+                BorderBrush="LightGray" BorderThickness="0,0,0,1"
+                IsVisible="{Binding ShowColumns, ElementName=Calendar}">
             <ScrollViewer Name="HeaderScroll" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Disabled">
                 <Canvas Name="HeaderCanvas"/>
             </ScrollViewer>

InABox.Avalonia/Components/CalendarView/CalendarView.axaml.cs

@@ -16,13 +16,6 @@ using System.Runtime.Serialization;
 
 namespace InABox.Avalonia.Components;
 
-public class CalendarEmptyBlockEventArgs(object column, TimeSpan start, TimeSpan end) : EventArgs
-{
-    public object Column { get; set; } = column;
-    public TimeSpan Start { get; set; } = start;
-    public TimeSpan End { get; set; } = end;
-}
-
 public class CalendarBlockEventArgs(object? value, object column, TimeSpan start, TimeSpan end) : EventArgs
 {
     public object? Value { get; set; } = value;
@@ -63,6 +56,9 @@ public partial class CalendarView : UserControl
     public static readonly StyledProperty<IEnumerable?> ColumnsProperty = 
         AvaloniaProperty.Register<CalendarView, IEnumerable?>(nameof(Columns));
 
+    public static readonly StyledProperty<bool> ShowColumnsProperty = 
+        AvaloniaProperty.Register<CalendarView, bool>(nameof(ShowColumns));
+
     public double MinimumColumnWidth
     {
         get => GetValue(MinimumColumnWidthProperty);
@@ -130,8 +126,11 @@ public partial class CalendarView : UserControl
         set => SetValue(ColumnsProperty, value);
     }
 
-    public event EventHandler<CalendarEmptyBlockEventArgs>? EmptyBlockClicked;
-    public event EventHandler<CalendarEmptyBlockEventArgs>? EmptyBlockHeld;
+    public bool ShowColumns
+    {
+        get => GetValue(ShowColumnsProperty);
+        set => SetValue(ShowColumnsProperty, value);
+    }
 
     public event EventHandler<CalendarBlockEventArgs>? BlockClicked;
     public event EventHandler<CalendarBlockEventArgs>? BlockHeld;
@@ -538,13 +537,13 @@ public partial class CalendarView : UserControl
     private void Canvas_PointerPressed(object? sender, PointerPressedEventArgs e)
     {
         if (!TryGetBlockFromPosition(e, out var column, out var start, out var end)) return;
-        PressedAction(() => EmptyBlockHeld?.Invoke(this, new(column, start, end)));
+        PressedAction(() => BlockHeld?.Invoke(this, new(null, column, start, end)));
     }
 
     private void Canvas_PointerReleased(object? sender, PointerReleasedEventArgs e)
     {
         if (!TryGetBlockFromPosition(e, out var column, out var start, out var end)) return;
-        ReleasedAction(() => EmptyBlockClicked?.Invoke(this, new(column, start, end)));
+        ReleasedAction(() => BlockClicked?.Invoke(this, new(null, column, start, end)));
     }
 
     private void ContentControl_SizeChanged(object? sender, SizeChangedEventArgs e)