Svelto.ECS/ECS/Profiler/Editor/EngineProfiler/ProfilerEditorLayout.cs

using UnityEditor;
using UnityEngine;

//This profiler is based on the Entitas Visual Debugging tool 
//https://github.com/sschmid/Entitas-CSharp

namespace Svelto.ECS.Profiler
{
    public static class ProfilerEditorLayout
    {
        public static void ShowWindow<T>(string title) where T : EditorWindow
        {
            var window = EditorWindow.GetWindow<T>(true, title);
            window.minSize = window.maxSize = new Vector2(415f, 520f);
            window.Show();
        }

        public static Texture2D LoadTexture(string label)
        {
            var guid = AssetDatabase.FindAssets(label)[0];
            if (guid != null)
            {
                var path = AssetDatabase.GUIDToAssetPath(guid);
                return AssetDatabase.LoadAssetAtPath<Texture2D>(path);
            }
            return null;
        }

        public static float DrawHeaderTexture(EditorWindow window, Texture2D texture)
        {
            const int scollBarWidth = 15;
            var ratio = texture.width/texture.height;
            var width = window.position.width - 8 - scollBarWidth;
            var height = width/ratio;
            GUI.DrawTexture(new Rect(4, 2, width, height), texture, ScaleMode.ScaleToFit);

            return height;
        }

        public static Rect BeginVertical()
        {
            return EditorGUILayout.BeginVertical();
        }

        public static Rect BeginVerticalBox(GUIStyle style = null)
        {
            return EditorGUILayout.BeginVertical(style ?? GUI.skin.box);
        }

        public static void EndVertical()
        {
            EditorGUILayout.EndVertical();
        }

        public static Rect BeginHorizontal()
        {
            return EditorGUILayout.BeginHorizontal();
        }

        public static void EndHorizontal()
        {
            EditorGUILayout.EndHorizontal();
        }
    }
}