c1_unity/Assets/Editor/BFResourceTools/ShaderTools/ShaderGUI/HideIfDisabledDrawer.cs

using UnityEngine;
using UnityEditor;
using System.Collections;

namespace BFEditor.Resource
{	
	public class HideIfDisabledDrawer : MaterialPropertyDrawer
	{
	    protected string[] argValue;
	    bool hidden;
	
	    public HideIfDisabledDrawer(string name1)
	    {
	        argValue = new string[] { name1 };
	    }
	
	    public HideIfDisabledDrawer(string name1, string name2)
	    {
	        argValue = new string[] { name1, name2 };
	    }
	
	    public HideIfDisabledDrawer(string name1, string name2, string name3)
	    {
	        argValue = new string[] { name1, name2, name3 };
	    }
	
	    public HideIfDisabledDrawer(string name1, string name2, string name3, string name4)
	    {
	        argValue = new string[] { name1, name2, name3, name4 };
	    }
	
	    public override void OnGUI(Rect position, MaterialProperty prop, string label, MaterialEditor editor)
	    {
	        hidden = false;
	        for (int i = 0; i < editor.targets.Length; i++)
	        {
	            var mat = editor.targets[i] as Material;
	            if (mat != null)
	            {
	                for (int j = 0; j < argValue.Length; j++)
	                {
	                    hidden |= !mat.IsKeywordEnabled(argValue[j]);
	                }
	            }
	        }
	
	        if (!hidden)
	        {
	            editor.DefaultShaderProperty(prop, label);
	        }
	    }
	
	    public override float GetPropertyHeight(MaterialProperty prop, string label, MaterialEditor editor)
	    { 
	        return 0;
	    }
	}
}