UnityEditor.AssetPreview.IsLoadingAssetPreviews C# (CSharp) Method

        public static bool IsLoadingAssetPreviews()
        {
            return IsLoadingAssetPreviews(0);
        }

        private void OnGUI()
        {
            this.HandleContextMenu();
            EditorGUILayout.BeginVertical(new GUILayoutOption[0]);
            GUILayout.Space(10f);
            EditorGUILayout.BeginHorizontal(new GUILayoutOption[0]);
            float pixels = ((float)Screen.width / EditorGUIUtility.pixelsPerPoint - GridPaintPaletteWindow.Styles.toolbarWidth) * 0.5f;

            GUILayout.Space(pixels);
            EditMode.DoInspectorToolbar(GridPaintPaletteWindow.Styles.sceneViewEditModes, GridPaintPaletteWindow.Styles.toolContents, ScriptableSingleton <GridPaintingState> .instance);
            EditorGUILayout.EndHorizontal();
            EditorGUILayout.BeginHorizontal(new GUILayoutOption[0]);
            GUILayout.Space(pixels);
            this.DoActiveTargetsGUI();
            EditorGUILayout.EndHorizontal();
            GUILayout.Space(6f);
            EditorGUILayout.EndVertical();
            EditorGUILayout.BeginVertical(new GUILayoutOption[0]);
            Rect rect = EditorGUILayout.BeginHorizontal(GUIContent.none, "Toolbar", new GUILayoutOption[0]);

            this.DoClipboardHeader();
            EditorGUILayout.EndHorizontal();
            Rect  dragRect = new Rect(210f, 0f, base.position.width - 200f - 10f, 17f);
            float num      = this.m_PreviewResizer.ResizeHandle(base.position, 50f, 200f, 17f, dragRect);
            float height   = base.position.height - num - 95f;
            Rect  position = new Rect(0f, rect.yMax, base.position.width, height);

            this.OnClipboardGUI(position);
            EditorGUILayout.EndVertical();
            GUILayout.Space(position.height);
            EditorGUILayout.BeginVertical(new GUILayoutOption[0]);
            EditorGUILayout.BeginHorizontal(GUIContent.none, "Toolbar", new GUILayoutOption[0]);
            this.DoBrushesDropdown();
            GUILayout.FlexibleSpace();
            EditorGUILayout.EndHorizontal();
            this.m_BrushScroll = GUILayout.BeginScrollView(this.m_BrushScroll, false, false, new GUILayoutOption[0]);
            GUILayout.Space(5f);
            this.OnBrushInspectorGUI();
            GUILayout.EndScrollView();
            EditorGUILayout.EndVertical();
            Color color = Handles.color;

            Handles.color = Color.black;
            Handles.DrawLine(new Vector3(0f, position.yMax + 0.5f, 0f), new Vector3((float)Screen.width, position.yMax + 0.5f, 0f));
            Handles.color = Color.black.AlphaMultiplied(0.33f);
            Handles.DrawLine(new Vector3(0f, GUILayoutUtility.GetLastRect().yMax + 0.5f, 0f), new Vector3((float)Screen.width, GUILayoutUtility.GetLastRect().yMax + 0.5f, 0f));
            Handles.color = color;
            EditorGUILayout.BeginVertical(new GUILayoutOption[0]);
            GUILayout.Space(2f);
            EditorGUILayout.EndVertical();
            if (AssetPreview.IsLoadingAssetPreviews(base.GetInstanceID()))
            {
                base.Repaint();
            }
            if (Event.current.type == EventType.MouseDown)
            {
                GUIUtility.keyboardControl = 0;
            }
        }