231 lines
9.1 KiB
C#
231 lines
9.1 KiB
C#
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using System;
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using System.Collections.Generic;
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#if UNITY_2021_2_OR_NEWER
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using UnityEditor.SceneManagement;
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#else
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using UnityEditor.Experimental.SceneManagement;
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#endif
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using UnityEngine;
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namespace UnityEditor.Timeline
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{
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enum TitleMode
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{
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None,
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DisabledComponent,
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Prefab,
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PrefabOutOfContext,
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Asset,
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GameObject
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}
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struct BreadCrumbTitle
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{
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public string name;
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public TitleMode mode;
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}
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class BreadcrumbDrawer
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{
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static readonly GUIContent s_TextContent = new GUIContent();
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static readonly string k_DisabledComponentText = L10n.Tr("The PlayableDirector is disabled");
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static readonly string k_PrefabOutOfContext = L10n.Tr("Prefab Isolation not enabled. Click to Enable.");
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static readonly GUIStyle k_BreadCrumbLeft;
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static readonly GUIStyle k_BreadCrumbMid;
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static readonly GUIStyle k_BreadCrumbLeftBg;
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static readonly GUIStyle k_BreadCrumbMidBg;
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static readonly GUIStyle k_BreadCrumbMidSelected;
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static readonly GUIStyle k_BreadCrumbMidBgSelected;
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static readonly Texture k_TimelineIcon;
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const string k_Elipsis = "…";
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static BreadcrumbDrawer()
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{
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k_BreadCrumbLeft = "GUIEditor.BreadcrumbLeft";
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k_BreadCrumbMid = "GUIEditor.BreadcrumbMid";
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k_BreadCrumbLeftBg = "GUIEditor.BreadcrumbLeftBackground";
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k_BreadCrumbMidBg = "GUIEditor.BreadcrumbMidBackground";
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k_BreadCrumbMidSelected = k_BreadCrumbMid;
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k_BreadCrumbMidSelected.normal = k_BreadCrumbMidSelected.onNormal;
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k_BreadCrumbMidBgSelected = k_BreadCrumbMidBg;
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k_BreadCrumbMidBgSelected.normal = k_BreadCrumbMidBgSelected.onNormal;
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k_TimelineIcon = EditorGUIUtility.IconContent("TimelineAsset Icon").image;
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}
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static string FitTextInArea(float areaWidth, string text, GUIStyle style)
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{
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var borderWidth = style.border.left + style.border.right;
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var textWidth = style.CalcSize(EditorGUIUtility.TextContent(text)).x;
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if (borderWidth + textWidth < areaWidth)
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return text;
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// Need to truncate the text to fit in the areaWidth
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var textAreaWidth = areaWidth - borderWidth;
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var pixByChar = textWidth / text.Length;
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var charNeeded = (int)Mathf.Floor(textAreaWidth / pixByChar);
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charNeeded -= k_Elipsis.Length;
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if (charNeeded <= 0)
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return k_Elipsis;
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if (charNeeded <= text.Length)
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return k_Elipsis + " " + text.Substring(text.Length - charNeeded);
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return k_Elipsis;
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}
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public static void Draw(float breadcrumbAreaWidth, List<BreadCrumbTitle> labels, Action<int> navigateToBreadcrumbIndex)
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{
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GUILayout.BeginHorizontal();
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{
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var labelWidth = (int)(breadcrumbAreaWidth / labels.Count);
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for (var i = 0; i < labels.Count; i++)
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{
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var label = labels[i];
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var style = i == 0 ? k_BreadCrumbLeft : k_BreadCrumbMid;
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var backgroundStyle = i == 0 ? k_BreadCrumbLeftBg : k_BreadCrumbMidBg;
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if (i == labels.Count - 1)
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{
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if (i > 0) // Only tint last breadcrumb if we are dug-in
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DrawBreadcrumbAsSelectedSubSequence(labelWidth, label, k_BreadCrumbMidSelected, k_BreadCrumbMidBgSelected);
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else
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DrawActiveBreadcrumb(labelWidth, label, style, backgroundStyle);
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}
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else
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{
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var previousContentColor = GUI.contentColor;
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GUI.contentColor = new Color(previousContentColor.r,
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previousContentColor.g,
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previousContentColor.b,
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previousContentColor.a * 0.6f);
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var content = GetTextContent(labelWidth, label, style);
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var rect = GetBreadcrumbLayoutRect(content, style);
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if (Event.current.type == EventType.Repaint)
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backgroundStyle.Draw(rect, GUIContent.none, 0);
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if (GUI.Button(rect, content, style))
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navigateToBreadcrumbIndex.Invoke(i);
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GUI.contentColor = previousContentColor;
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}
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}
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}
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GUILayout.EndHorizontal();
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}
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static GUIContent GetTextContent(int width, BreadCrumbTitle text, GUIStyle style)
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{
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s_TextContent.tooltip = string.Empty;
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s_TextContent.image = null;
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if (text.mode == TitleMode.DisabledComponent)
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{
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s_TextContent.tooltip = k_DisabledComponentText;
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s_TextContent.image = EditorGUIUtility.GetHelpIcon(MessageType.Warning);
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}
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else if (text.mode == TitleMode.Prefab)
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s_TextContent.image = PrefabUtility.GameObjectStyles.prefabIcon;
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else if (text.mode == TitleMode.GameObject)
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s_TextContent.image = PrefabUtility.GameObjectStyles.gameObjectIcon;
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else if (text.mode == TitleMode.Asset)
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s_TextContent.image = k_TimelineIcon;
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else if (text.mode == TitleMode.PrefabOutOfContext)
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{
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s_TextContent.image = PrefabUtility.GameObjectStyles.prefabIcon;
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if (!TimelineWindow.instance.locked)
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s_TextContent.tooltip = k_PrefabOutOfContext;
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}
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if (s_TextContent.image != null)
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width = Math.Max(0, width - s_TextContent.image.width);
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s_TextContent.text = FitTextInArea(width, text.name, style);
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return s_TextContent;
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}
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static void DrawBreadcrumbAsSelectedSubSequence(int width, BreadCrumbTitle label, GUIStyle style, GUIStyle backgroundStyle)
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{
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var rect = DrawActiveBreadcrumb(width, label, style, backgroundStyle);
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const float underlineThickness = 2.0f;
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const float underlineVerticalOffset = 0.0f;
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var underlineHorizontalOffset = backgroundStyle.border.right * 0.333f;
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var underlineRect = Rect.MinMaxRect(
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rect.xMin - underlineHorizontalOffset,
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rect.yMax - underlineThickness - underlineVerticalOffset,
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rect.xMax - underlineHorizontalOffset,
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rect.yMax - underlineVerticalOffset);
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EditorGUI.DrawRect(underlineRect, DirectorStyles.Instance.customSkin.colorSubSequenceDurationLine);
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}
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static Rect GetBreadcrumbLayoutRect(GUIContent content, GUIStyle style)
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{
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// the image makes the button far too big compared to non-image versions
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var image = content.image;
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content.image = null;
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var size = style.CalcSizeWithConstraints(content, Vector2.zero);
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content.image = image;
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if (image != null)
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size.x += size.y; // assumes square image, constrained by height
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return GUILayoutUtility.GetRect(content, style, GUILayout.MaxWidth(size.x));
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}
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static Rect DrawActiveBreadcrumb(int width, BreadCrumbTitle label, GUIStyle style, GUIStyle backgroundStyle)
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{
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var content = GetTextContent(width, label, style);
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var rect = GetBreadcrumbLayoutRect(content, style);
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if (Event.current.type == EventType.Repaint)
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{
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backgroundStyle.Draw(rect, GUIContent.none, 0);
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}
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if (GUI.Button(rect, content, style))
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{
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UnityEngine.Object target = TimelineEditor.inspectedDirector;
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if (target == null)
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target = TimelineEditor.inspectedAsset;
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if (target != null)
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{
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bool ping = true;
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if (label.mode == TitleMode.PrefabOutOfContext)
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{
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var gameObject = PrefabUtility.GetRootGameObject(target);
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if (gameObject != null)
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{
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target = gameObject; // ping the prefab root if it's locked.
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if (!TimelineWindow.instance.locked)
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{
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var assetPath = AssetDatabase.GetAssetPath(gameObject);
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if (!string.IsNullOrEmpty(assetPath))
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{
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var stage = PrefabStageUtility.OpenPrefab(assetPath);
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if (stage != null)
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ping = false;
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}
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}
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}
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}
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if (ping)
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{
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EditorGUIUtility.PingObject(target);
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}
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}
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}
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return rect;
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}
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}
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}
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