Inital commit

6 files changed, 304 insertions, 0 deletions

diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ClipsLayer.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ClipsLayer.cs
new file mode 100644
index 0000000..910123e
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ClipsLayer.cs
@@ -0,0 +1,57 @@
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using UnityEngine.Timeline;
+
+namespace UnityEditor.Timeline
+{
+    class ClipsLayer : ItemsLayer
+    {
+        static readonly GUIStyle k_ConnectorIcon = DirectorStyles.Instance.connector;
+
+        public ClipsLayer(Layer layerOrder, IRowGUI parent) : base(layerOrder)
+        {
+            var track = parent.asset;
+            track.SortClips();
+            TimelineClipGUI previousClipGUI = null;
+
+            foreach (var clip in track.clips)
+            {
+                var oldClipGUI = ItemToItemGui.GetGuiForClip(clip);
+                var isInvalid = oldClipGUI != null && oldClipGUI.isInvalid;  // HACK Make sure to carry invalidy state when refereshing the cache.
+
+                var currentClipGUI = new TimelineClipGUI(clip, parent, this) {isInvalid = isInvalid};
+                if (previousClipGUI != null) previousClipGUI.nextClip = currentClipGUI;
+                currentClipGUI.previousClip = previousClipGUI;
+                AddItem(currentClipGUI);
+                previousClipGUI = currentClipGUI;
+            }
+        }
+
+        public override void Draw(Rect rect, WindowState state)
+        {
+            base.Draw(rect, state); //draw clips
+            DrawConnector(items.OfType<TimelineClipGUI>());
+        }
+
+        static void DrawConnector(IEnumerable<TimelineClipGUI> clips)
+        {
+            if (Event.current.type != EventType.Repaint)
+                return;
+
+            foreach (var clip in clips)
+            {
+                if (clip.previousClip != null && clip.visible && clip.treeViewRect.width > 14 &&
+                    (DiscreteTime)clip.start == (DiscreteTime)clip.previousClip.end)
+                {
+                    // draw little connector widget
+                    var localRect = clip.treeViewRect;
+                    localRect.x -= Mathf.Floor(k_ConnectorIcon.fixedWidth / 2.0f);
+                    localRect.width = k_ConnectorIcon.fixedWidth;
+                    localRect.height = k_ConnectorIcon.fixedHeight;
+                    GUI.Label(localRect, GUIContent.none, k_ConnectorIcon);
+                }
+            }
+        }
+    }
+}
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ClipsLayer.cs.meta b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ClipsLayer.cs.meta
new file mode 100644
index 0000000..58ef809
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ClipsLayer.cs.meta
@@ -0,0 +1,11 @@
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ItemsLayer.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ItemsLayer.cs
new file mode 100644
index 0000000..7446d59
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ItemsLayer.cs
@@ -0,0 +1,134 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using UnityEngine.Timeline;
+
+namespace UnityEditor.Timeline
+{
+    enum Layer : byte
+    {
+        Clips,
+        ClipHandles,
+        Markers,
+        MarkerHeaderTrack,
+        MarkersOnHeader
+    }
+
+    struct LayerZOrder : IComparable<LayerZOrder>
+    {
+        Layer m_Layer;
+        int m_ZOrder;
+
+        public LayerZOrder(Layer layer, int zOrder)
+        {
+            m_Layer = layer;
+            m_ZOrder = zOrder;
+        }
+
+        public int CompareTo(LayerZOrder other)
+        {
+            if (m_Layer == other.m_Layer)
+                return m_ZOrder.CompareTo(other.m_ZOrder);
+            return m_Layer.CompareTo(other.m_Layer);
+        }
+
+        public static LayerZOrder operator++(LayerZOrder x)
+        {
+            return new LayerZOrder(x.m_Layer, x.m_ZOrder + 1);
+        }
+
+        public LayerZOrder ChangeLayer(Layer layer)
+        {
+            return new LayerZOrder(layer, m_ZOrder);
+        }
+    }
+
+    interface ILayerable
+    {
+        LayerZOrder zOrder { get; }
+    }
+
+    interface IZOrderProvider
+    {
+        LayerZOrder Next();
+    }
+
+    abstract class ItemsLayer : IZOrderProvider
+    {
+        // provide a buffer for time-based culling to allow for UI that extends slightly beyong the time (e.g. markers)
+        // prevents popping of marker visibility.
+        private const int kVisibilityBufferInPixels = 10;
+
+        int m_PreviousLayerStateHash = -1;
+        LayerZOrder m_LastZOrder;
+
+        public LayerZOrder Next()
+        {
+            return m_LastZOrder++;
+        }
+
+        readonly List<TimelineItemGUI> m_Items = new List<TimelineItemGUI>();
+        bool m_NeedSort = true;
+
+        public virtual void Draw(Rect rect, WindowState state)
+        {
+            if (!m_Items.Any()) return;
+
+            Sort();
+
+            // buffer to prevent flickering of markers at boundaries
+            var onePixelTime = state.PixelDeltaToDeltaTime(kVisibilityBufferInPixels);
+            var visibleTime = state.timeAreaShownRange + new Vector2(-onePixelTime, onePixelTime);
+            var layerViewStateHasChanged = GetLayerViewStateChanged(rect, state);
+
+            foreach (var item in m_Items)
+            {
+                item.visible = item.end > visibleTime.x && item.start < visibleTime.y;
+                if (!item.visible)
+                    continue;
+
+                item.Draw(rect, layerViewStateHasChanged, state);
+            }
+        }
+
+        public IEnumerable<TimelineItemGUI> items
+        {
+            get
+            {
+                return m_Items;
+            }
+        }
+
+        protected void AddItem(TimelineItemGUI item)
+        {
+            m_Items.Add(item);
+            m_NeedSort = true;
+        }
+
+        protected ItemsLayer(Layer layerOrder)
+        {
+            m_LastZOrder = new LayerZOrder(layerOrder, 0);
+        }
+
+        void Sort()
+        {
+            if (!m_NeedSort)
+                return;
+
+            m_Items.Sort((a, b) => a.zOrder.CompareTo(b.zOrder));
+            m_NeedSort = false;
+        }
+
+        bool GetLayerViewStateChanged(Rect rect, WindowState state)
+        {
+            var layerStateHash = rect.GetHashCode().CombineHash(state.viewStateHash);
+            var layerViewStateHasChanged = layerStateHash != m_PreviousLayerStateHash;
+
+            if (Event.current.type == EventType.Layout && layerViewStateHasChanged)
+                m_PreviousLayerStateHash = layerStateHash;
+
+            return layerViewStateHasChanged;
+        }
+    }
+}
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ItemsLayer.cs.meta b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ItemsLayer.cs.meta
new file mode 100644
index 0000000..5ebff18
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/ItemsLayer.cs.meta
@@ -0,0 +1,11 @@
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+guid: ef97f39912c138b4cabdccedfb24093b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
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+  assetBundleVariant: 
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/MarkersLayer.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/MarkersLayer.cs
new file mode 100644
index 0000000..50d1432
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/MarkersLayer.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine.Timeline;
+
+namespace UnityEditor.Timeline
+{
+    class MarkersLayer : ItemsLayer
+    {
+        public MarkersLayer(Layer layerOrder, IRowGUI parent) : base(layerOrder)
+        {
+            CreateLists(parent);
+        }
+
+        void CreateLists(IRowGUI parent)
+        {
+            var markerCount = parent.asset.GetMarkerCount();
+            if (markerCount == 0) return;
+
+            var accumulator = new List<IMarker>();
+            var sortedMarkers = new List<IMarker>(parent.asset.GetMarkers());
+            var vm = TimelineWindowViewPrefs.GetTrackViewModelData(parent.asset);
+
+            sortedMarkers.Sort((lhs, rhs) =>
+            {
+                // Sort by time first
+                var timeComparison = lhs.time.CompareTo(rhs.time);
+                if (timeComparison != 0)
+                    return timeComparison;
+
+                // If there's a collision, sort by edit timestamp
+                var lhsObject = lhs as object;
+                var rhsObject = rhs as object;
+
+                if (lhsObject.Equals(null) || rhsObject.Equals(null))
+                    return 0;
+
+                var lhsHash = lhsObject.GetHashCode();
+                var rhsHash = rhsObject.GetHashCode();
+
+                if (vm.markerTimeStamps.ContainsKey(lhsHash) && vm.markerTimeStamps.ContainsKey(rhsHash))
+                    return vm.markerTimeStamps[lhsHash].CompareTo(vm.markerTimeStamps[rhsHash]);
+
+                return 0;
+            });
+
+            foreach (var current in sortedMarkers)
+            {
+                // TODO: Take zoom factor into account?
+                if (accumulator.Count > 0 && Math.Abs(current.time - accumulator[accumulator.Count - 1].time) > TimeUtility.kTimeEpsilon)
+                    ProcessAccumulator(accumulator, parent);
+
+                accumulator.Add(current);
+            }
+
+            ProcessAccumulator(accumulator, parent);
+        }
+
+        void ProcessAccumulator(List<IMarker> accumulator, IRowGUI parent)
+        {
+            if (accumulator.Count == 0) return;
+
+            if (accumulator.Count == 1)
+            {
+                AddItem(new TimelineMarkerGUI(accumulator[0], parent, this));
+            }
+            else
+            {
+                // Ensure that the cluster is always considered *below* the markers it contains.
+                var clusterZOrder = Next();
+                AddItem(
+                    new TimelineMarkerClusterGUI(
+                        accumulator.Select(m => new TimelineMarkerGUI(m, parent, this)).ToList(),
+                        parent, this, clusterZOrder));
+            }
+
+            accumulator.Clear();
+        }
+    }
+}
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/MarkersLayer.cs.meta b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/MarkersLayer.cs.meta
new file mode 100644
index 0000000..32b0787
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/treeview/Drawers/Layers/MarkersLayer.cs.meta
@@ -0,0 +1,11 @@
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