1 files changed, 81 insertions, 0 deletions
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Audio/AudioClipPropertiesDrawer.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Audio/AudioClipPropertiesDrawer.cs
new file mode 100644
index 0000000..e3ec132
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Audio/AudioClipPropertiesDrawer.cs
@@ -0,0 +1,81 @@
+using System;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using JetBrains.Annotations;
+using UnityEditor;
+using UnityEditor.Timeline;
+
+namespace UnityEngine.Timeline
+{
+    [CustomPropertyDrawer(typeof(AudioClipProperties))]
+    class AudioClipPropertiesDrawer : PropertyDrawer
+    {
+        [UsedImplicitly] // Also used by tests
+        internal static class Styles
+        {
+            public const string VolumeControl = "AudioClipPropertiesDrawer.volume";
+
+            const string k_Indent = "    ";
+            public const string valuesFormatter = "0.###";
+            public static string mixedPropertiesInfo = L10n.Tr("The final {3} is {0}\n" +
+                "Calculated from:\n" +
+                k_Indent + "Clip: {1}\n" +
+                k_Indent + "Track: {2}");
+
+            public static string audioSourceContribution = L10n.Tr(k_Indent + "AudioSource: {0}");
+        }
+
+        static StringBuilder s_MixInfoBuilder = new StringBuilder();
+
+        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+        {
+            var volumeProp = property.FindPropertyRelative("volume");
+
+            GUI.SetNextControlName(Styles.VolumeControl);
+            EditorGUI.Slider(position, volumeProp, 0.0f, 1.0f, AudioSourceInspector.Styles.volumeLabel);
+
+            if (TimelineEditor.inspectedDirector == null)
+                // Nothing more to do in asset mode
+                return;
+
+            var clip = SelectionManager.SelectedClips().FirstOrDefault(c => c.asset == property.serializedObject.targetObject);
+
+            if (clip == null || clip.parentTrack == null)
+                return;
+
+            var clipVolume = volumeProp.floatValue;
+            var trackVolume = new SerializedObject(clip.parentTrack).FindProperty("m_TrackProperties.volume").floatValue;
+            var binding = TimelineEditor.inspectedDirector.GetGenericBinding(clip.parentTrack) as AudioSource;
+
+            if (Math.Abs(clipVolume) < float.Epsilon &&
+                Math.Abs(trackVolume) < float.Epsilon &&
+                (binding == null || Math.Abs(binding.volume) < float.Epsilon))
+                return;
+
+            if (Math.Abs(clipVolume - 1) < float.Epsilon &&
+                Math.Abs(trackVolume - 1) < float.Epsilon &&
+                (binding == null || Math.Abs(binding.volume - 1) < float.Epsilon))
+                return;
+
+            s_MixInfoBuilder.Length = 0;
+
+            var audioSourceVolume = binding == null ? 1.0f : binding.volume;
+
+            s_MixInfoBuilder.AppendFormat(
+                Styles.mixedPropertiesInfo,
+                (clipVolume * trackVolume * audioSourceVolume).ToString(Styles.valuesFormatter, CultureInfo.InvariantCulture),
+                clipVolume.ToString(Styles.valuesFormatter, CultureInfo.InvariantCulture),
+                trackVolume.ToString(Styles.valuesFormatter, CultureInfo.InvariantCulture),
+                AudioSourceInspector.Styles.volumeLabel.text);
+
+            if (binding != null)
+                s_MixInfoBuilder.Append("\n")
+                    .AppendFormat(Styles.audioSourceContribution,
+                        audioSourceVolume.ToString(Styles.valuesFormatter, CultureInfo.InvariantCulture));
+
+            EditorGUILayout.Space();
+            EditorGUILayout.HelpBox(new GUIContent(s_MixInfoBuilder.ToString()));
+        }
+    }
+}