61 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			61 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
| using System;
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| using System.Collections.Generic;
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| using System.Linq;
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| using UnityEditor.Experimental;
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| using UnityEditor.StyleSheets;
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| using UnityEngine;
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| using UnityEngine.Timeline;
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| 
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| namespace UnityEditor.Timeline
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| {
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|     static class StyleManager
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|     {
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|         static readonly StyleState[] k_StyleStates = { StyleState.any };
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|         static readonly string k_ErrorCannotFindStyle = L10n.Tr("Cannot find style {0} for {1}");
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| 
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|         static Dictionary<Type, GUIStyle> s_CustomStyles = new Dictionary<Type, GUIStyle>();
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|         static GUISkin s_CurrentSkin;
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| 
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|         public static GUIStyle UssStyleForType(Type type)
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|         {
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|             ClearCacheIfInvalid();
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| 
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|             GUIStyle cachedStyle;
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|             if (s_CustomStyles.TryGetValue(type, out cachedStyle))
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|                 return cachedStyle;
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| 
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|             var style = DirectorStyles.GetGUIStyle(DirectorStyles.markerDefaultStyle);
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| 
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|             var customStyleForType = CustomStyleForType(type);
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|             if (customStyleForType != null)
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|             {
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|                 if (IsStyleValid(customStyleForType))
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|                     style = DirectorStyles.GetGUIStyle(customStyleForType);
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|                 else
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|                     Debug.LogWarningFormat(k_ErrorCannotFindStyle, customStyleForType, type.Name);
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|             }
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| 
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|             s_CustomStyles.Add(type, style);
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|             return style;
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|         }
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| 
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|         static string CustomStyleForType(Type type)
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|         {
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|             var attr = (CustomStyleAttribute)type.GetCustomAttributes(typeof(CustomStyleAttribute), true).FirstOrDefault();
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|             return attr != null ? attr.ussStyle : null;
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|         }
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| 
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|         static bool IsStyleValid(string ussStyle)
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|         {
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|             return GUISkin.current.FindStyle(ussStyle) != null || EditorResources.styleCatalog.GetStyle(ussStyle, k_StyleStates).IsValid();
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|         }
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| 
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|         static void ClearCacheIfInvalid()
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|         {
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|             if (s_CurrentSkin != GUISkin.current)
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|                 s_CustomStyles.Clear();
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|             s_CurrentSkin = GUISkin.current;
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|         }
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|     }
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| }
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