feat: initialize control.

src/Ursa/Controls/Timeline/TimelineItem.cs

@@ -0,0 +1,59 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.Metadata;
+using Avalonia.Controls.Templates;
+using Avalonia.Data;
+using Avalonia.Media;
+
+namespace Ursa.Controls;
+
+[PseudoClasses(PC_First, PC_Last)]
+public class TimelineItem: ContentControl
+{
+    public const string PC_First = ":first";
+    public const string PC_Last = ":last";
+    
+    public static readonly StyledProperty<IBrush> IconForegroundProperty =
+        AvaloniaProperty.Register<TimelineItem, IBrush>(nameof(IconForeground));
+
+    public IBrush IconForeground
+    {
+        get => GetValue(IconForegroundProperty);
+        set => SetValue(IconForegroundProperty, value);
+    }
+
+    public static readonly StyledProperty<object?> DescriptionProperty =
+        AvaloniaProperty.Register<TimelineItem, object?>(nameof(Description));
+
+    public object? Description
+    {
+        get => GetValue(DescriptionProperty);
+        set => SetValue(DescriptionProperty, value);
+    }
+
+    public static readonly StyledProperty<DateTime> TimeProperty = AvaloniaProperty.Register<TimelineItem, DateTime>(
+        nameof(Time));
+    public DateTime Time
+    {
+        get => GetValue(TimeProperty);
+        set => SetValue(TimeProperty, value);
+    }
+
+    public static readonly StyledProperty<string?> TimeFormatProperty = AvaloniaProperty.Register<TimelineItem, string?>(
+        nameof(TimeFormat));
+
+    public string? TimeFormat
+    {
+        get => GetValue(TimeFormatProperty);
+        set => SetValue(TimeFormatProperty, value);
+    }
+
+    public static readonly StyledProperty<IDataTemplate> DescriptionTemplateProperty = AvaloniaProperty.Register<TimelineItem, IDataTemplate>(
+        nameof(DescriptionTemplate));
+
+    public IDataTemplate DescriptionTemplate
+    {
+        get => GetValue(DescriptionTemplateProperty);
+        set => SetValue(DescriptionTemplateProperty, value);
+    }
+}