Profile editor - Reimplementing the timeline

src/Artemis.UI/Screens/ProfileEditor/LayerProperties/Timeline/TimelineGroupViewModel.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Linq;
+using Artemis.Core;
+using Artemis.UI.Shared.Services;
+using Stylet;
+
+namespace Artemis.UI.Screens.ProfileEditor.LayerProperties.Timeline
+{
+    public class TimelineGroupViewModel : IDisposable
+    {
+        private readonly IProfileEditorService _profileEditorService;
+
+        public TimelineGroupViewModel(LayerPropertyGroupViewModel layerPropertyGroupViewModel, IProfileEditorService profileEditorService)
+        {
+            _profileEditorService = profileEditorService;
+
+            LayerPropertyGroupViewModel = layerPropertyGroupViewModel;
+            LayerPropertyGroup = LayerPropertyGroupViewModel.LayerPropertyGroup;
+            KeyframePositions = new BindableCollection<double>();
+
+            _profileEditorService.PixelsPerSecondChanged += ProfileEditorServiceOnPixelsPerSecondChanged;
+            UpdateKeyframePositions();
+        }
+
+        public LayerPropertyGroupViewModel LayerPropertyGroupViewModel { get; }
+        public LayerPropertyGroup LayerPropertyGroup { get; }
+
+        public BindableCollection<double> KeyframePositions { get; }
+
+        public void Dispose()
+        {
+            _profileEditorService.PixelsPerSecondChanged -= ProfileEditorServiceOnPixelsPerSecondChanged;
+        }
+
+        private void ProfileEditorServiceOnPixelsPerSecondChanged(object? sender, EventArgs e)
+        {
+            UpdateKeyframePositions();
+        }
+
+        public void UpdateKeyframePositions()
+        {
+            KeyframePositions.Clear();
+            KeyframePositions.AddRange(LayerPropertyGroupViewModel
+                .GetAllKeyframePositions(false)
+                .Select(p => p.TotalSeconds * _profileEditorService.PixelsPerSecond));
+        }
+    }
+}