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