1 files changed, 201 insertions, 0 deletions
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Window/TimelineMarkerHeaderGUI.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Window/TimelineMarkerHeaderGUI.cs
new file mode 100644
index 0000000..6a93cfa
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Window/TimelineMarkerHeaderGUI.cs
@@ -0,0 +1,201 @@
+using System;
+using System.Linq;
+using UnityEngine;
+using UnityEngine.Timeline;
+using Object = UnityEngine.Object;
+
+namespace UnityEditor.Timeline
+{
+    class TimelineMarkerHeaderGUI : IRowGUI, ILayerable
+    {
+        int m_TrackHash;
+        TimelineAsset timeline { get; }
+        WindowState state { get; }
+        MarkersLayer m_Layer;
+        LayerZOrder m_ZOrder = new LayerZOrder(Layer.MarkerHeaderTrack, 0);
+
+        struct DrawData
+        {
+            public Rect headerRect;
+            public Rect contentRect;
+            public GUIStyle trackSwatchStyle;
+            public GUIStyle trackHeaderFont;
+            public Color colorTrackFont;
+            public bool showLockButton;
+            public bool showMuteButton;
+        }
+
+        public TimelineMarkerHeaderGUI(TimelineAsset asset, WindowState state)
+        {
+            m_TrackHash = -1;
+            timeline = asset;
+            this.state = state;
+        }
+
+        public TrackAsset asset { get { return timeline.markerTrack; } }
+        public Rect boundingRect { get; private set; }
+        public bool locked { get { return !state.showMarkerHeader; } }
+
+        public bool showMarkers
+        {
+            get { return state.showMarkerHeader; }
+        }
+
+        public bool muted
+        {
+            get { return timeline.markerTrack != null && timeline.markerTrack.muted; }
+        }
+
+        Rect IRowGUI.ToWindowSpace(Rect rect)
+        {
+            //header gui is already in global coordinates
+            return rect;
+        }
+
+        public void Draw(Rect markerHeaderRect, Rect markerContentRect, WindowState state)
+        {
+            boundingRect = markerContentRect;
+            var data = new DrawData()
+            {
+                headerRect = markerHeaderRect,
+                contentRect = markerContentRect,
+                trackSwatchStyle = new GUIStyle(),
+                trackHeaderFont = DirectorStyles.Instance.trackHeaderFont,
+                colorTrackFont = DirectorStyles.Instance.customSkin.colorTrackFont,
+                showLockButton = locked,
+                showMuteButton = muted
+            };
+
+            if (state.showMarkerHeader)
+            {
+                DrawMarkerDrawer(data, state);
+                if (Event.current.type == EventType.Repaint)
+                    state.spacePartitioner.AddBounds(this, boundingRect);
+            }
+
+            if (asset != null && Hash() != m_TrackHash)
+                Rebuild();
+
+            var rect = state.showMarkerHeader ? markerContentRect : state.timeAreaRect;
+            using (new GUIViewportScope(rect))
+            {
+                if (m_Layer != null)
+                    m_Layer.Draw(rect, state);
+
+                HandleDragAndDrop();
+            }
+        }
+
+        public void Rebuild()
+        {
+            if (asset == null)
+                return;
+
+            m_Layer = new MarkersLayer(Layer.MarkersOnHeader, this);
+            m_TrackHash = Hash();
+        }
+
+        void HandleDragAndDrop()
+        {
+            if (TimelineWindow.instance.state.editSequence.isReadOnly)
+                return;
+
+            if (Event.current == null || Event.current.type != EventType.DragUpdated &&
+                Event.current.type != EventType.DragPerform && Event.current.type != EventType.DragExited)
+                return;
+
+            timeline.CreateMarkerTrack(); // Ensure Marker track is created.
+            var objectsBeingDropped = DragAndDrop.objectReferences.OfType<Object>();
+            var candidateTime = TimelineHelpers.GetCandidateTime(TimelineWindow.instance.state, Event.current.mousePosition);
+            var perform = Event.current.type == EventType.DragPerform;
+            var director = state.editSequence != null ? state.editSequence.director : null;
+            DragAndDrop.visualMode = TimelineDragging.HandleClipPaneObjectDragAndDrop(objectsBeingDropped, timeline.markerTrack, perform,
+                timeline, null, director, candidateTime, TimelineDragging.ResolveType);
+            if (perform && DragAndDrop.visualMode == DragAndDropVisualMode.Copy)
+            {
+                DragAndDrop.AcceptDrag();
+            }
+        }
+
+        int Hash()
+        {
+            return timeline.markerTrack == null ? 0 : timeline.markerTrack.Hash();
+        }
+
+        static void DrawMarkerDrawer(DrawData data, WindowState state)
+        {
+            DrawMarkerDrawerHeaderBackground(data);
+            DrawMarkerDrawerHeader(data, state);
+            DrawMarkerDrawerContentBackground(data);
+        }
+
+        static void DrawMarkerDrawerHeaderBackground(DrawData data)
+        {
+            var backgroundColor = DirectorStyles.Instance.customSkin.markerHeaderDrawerBackgroundColor;
+            var bgRect = data.headerRect;
+            bgRect.x += data.trackSwatchStyle.fixedWidth;
+            bgRect.width -= data.trackSwatchStyle.fixedWidth;
+            EditorGUI.DrawRect(bgRect, backgroundColor);
+        }
+
+        static void DrawMarkerDrawerHeader(DrawData data, WindowState state)
+        {
+            var textStyle = data.trackHeaderFont;
+            textStyle.normal.textColor = data.colorTrackFont;
+            var labelRect = data.headerRect;
+            labelRect.x += DirectorStyles.kBaseIndent;
+
+            EditorGUI.LabelField(labelRect, DirectorStyles.timelineMarkerTrackHeader);
+
+            const float buttonSize = WindowConstants.trackHeaderButtonSize;
+            const float padding = WindowConstants.trackHeaderButtonPadding;
+            var x = data.headerRect.xMax - buttonSize - padding - 2f;
+            var y = data.headerRect.y + (data.headerRect.height - buttonSize) / 2.0f;
+            var buttonRect = new Rect(x, y, buttonSize, buttonSize);
+
+            DrawTrackDropDownMenu(buttonRect, state);
+            buttonRect.x -= 16.0f;
+
+            if (data.showMuteButton)
+            {
+                DrawMuteButton(buttonRect, state);
+                buttonRect.x -= 16.0f;
+            }
+
+            if (data.showLockButton)
+            {
+                DrawLockButton(buttonRect, state);
+            }
+        }
+
+        static void DrawMarkerDrawerContentBackground(DrawData data)
+        {
+            var trackBackgroundColor = DirectorStyles.Instance.customSkin.markerDrawerBackgroundColor;
+            EditorGUI.DrawRect(data.contentRect, trackBackgroundColor);
+        }
+
+        static void DrawLockButton(Rect rect, WindowState state)
+        {
+            if (GUI.Button(rect, GUIContent.none, TimelineWindow.styles.locked))
+                TimelineAction.Invoke<ToggleShowMarkersOnTimeline>(state);
+        }
+
+        static void DrawTrackDropDownMenu(Rect rect, WindowState state)
+        {
+            rect.y += WindowConstants.trackOptionButtonVerticalPadding;
+            if (GUI.Button(rect, GUIContent.none, DirectorStyles.Instance.trackOptions))
+                SequencerContextMenu.ShowMarkerHeaderContextMenu(null, state);
+        }
+
+        static void DrawMuteButton(Rect rect, WindowState state)
+        {
+            if (GUI.Button(rect, GUIContent.none, TimelineWindow.styles.mute))
+                TimelineAction.Invoke<ToggleMuteMarkersOnTimeline>(state);
+        }
+
+        public LayerZOrder zOrder
+        {
+            get { return m_ZOrder; }
+        }
+    }
+}