fungus/Assets/Fungus/Flowchart/Editor/CustomGUI.cs

using UnityEngine;
using UnityEngine.Internal;
using UnityEditor;
using System;
using System.Reflection;

/**
 * Utility functions for drawing custom UI in the editor
 */
public static class CustomGUI
{	
	public static Texture2D CreateBlackTexture()
	{
		Texture2D blackTex = new Texture2D(1,2);
		blackTex.SetPixel(0, 0, Color.gray);
		blackTex.SetPixel(1, 0, Color.black);
		blackTex.Apply();
		blackTex.hideFlags = HideFlags.DontSave;
		return blackTex;
	}

	public static Texture2D CreateColorTexture(Color color)
	{
		Texture2D colorTex = new Texture2D(1,1);
		colorTex.SetPixel(0, 0, color);
		colorTex.Apply();
		colorTex.hideFlags = HideFlags.DontSave;
		return colorTex;
	}
	
	public static void DrawLineSeparator(Texture2D blackTex, float width)
	{
		GUIStyle separatorStyle = new GUIStyle(GUI.skin.box);
		separatorStyle.fixedWidth = width;
		separatorStyle.fixedHeight = 2;
		separatorStyle.margin.top = 10;
		separatorStyle.margin.bottom = 10;
		GUILayout.Box(blackTex,separatorStyle);
	}
}