using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;

namespace ActionTool
{
    internal class ActionEditorUI
    {
        static ActionEditorUI s_instance;

        static Material m_material;

        public Material defaultUIMaterail { get { return m_material; } }

        public static ActionEditorUI Get()
        {
            bool flag = s_instance == null;
            if (flag)
            {
                s_instance = new ActionEditorUI();
            }
            return s_instance;
        }

        private ActionEditorUI()
        {
            m_material = new Material(Shader.Find("Hidden/Internal-Colored"));
            m_material.hideFlags = HideFlags.HideAndDontSave;
        }

        public void DrawVerticalLineFast(float x, float minY, float maxY, Color color)
        {
			// GL画线在GenericMenu弹出来时会有问题
			//bool bWin = Application.platform == RuntimePlatform.WindowsEditor;
			//if (bWin)
			//{
			//    GL.Color(color);
			//    GL.Vertex(new Vector3(x - 0.5f, minY, 0f));
			//    GL.Vertex(new Vector3(x + 0.5f, minY, 0f));
			//    GL.Vertex(new Vector3(x + 0.5f, maxY, 0f));
			//    GL.Vertex(new Vector3(x - 0.5f, maxY, 0f));
			//}
			//else
			//{
			//    GL.Color(color);
			//    GL.Vertex(new Vector3(x, minY, 0f));
			//    GL.Vertex(new Vector3(x, maxY, 0f));
			//}
			Rect rect = new Rect(x-0.5f, minY, 1, maxY - minY);
			EditorGUI.DrawRect(rect, color);
		}

		public void DrawHorizontalLineFast(float y, float minX, float maxX, Color color)
        {
			//bool bWin = Application.platform == RuntimePlatform.WindowsEditor;
			//if (bWin)
			//{
			//    GL.Color(color);
			//    GL.Vertex(new Vector3(minX, y - 0.5f, 0f));
			//    GL.Vertex(new Vector3(minX, y + 0.5f, 0f));
			//    GL.Vertex(new Vector3(maxX, y + 0.5f, 0f));
			//    GL.Vertex(new Vector3(maxX, y - 0.5f, 0f));
			//}
			//else
			//{
			//    GL.Color(color);
			//    GL.Vertex(new Vector3(minX, y, 0f));
			//    GL.Vertex(new Vector3(maxX, y, 0f));
			//}
			Rect rect = new Rect(minX, y - 0.5f, maxX - minX, 1);
			EditorGUI.DrawRect(rect, color);
		}

        public void DrawRectFrame(Rect rect, Color col)
        {
            DrawHorizontalLineFast(rect.y, rect.x, rect.x + rect.width, col);
            DrawHorizontalLineFast(rect.y + rect.height, rect.x, rect.x + rect.width, col);
            DrawVerticalLineFast(rect.x, rect.y, rect.y + rect.height, col);
            DrawVerticalLineFast(rect.x + rect.width, rect.y, rect.y + rect.height, col);
        }

        public void SelectObject(Object obj)
        {
            Selection.activeObject = obj;
            EditorGUIUtility.PingObject(obj);
        }

        public void SelectObject(string path)
        {
            Object obj = AssetDatabase.LoadAssetAtPath(path, typeof(Object)) as Object;
            if(obj)
            {
                SelectObject(obj);
            }
        }

    }
}