using UnityEditor;
using UnityEngine;

using System.Collections;
using System.Collections.Generic;

[CustomEditor(typeof(SpriteAsset))]
public class EditorSpriteAsste : Editor
{
	#region 变量

    private Vector2 ScrollPos;
    private SpriteAsset Script;

    #endregion

	private void OnEnable()
	{
	    Script = (SpriteAsset) target;
	}

    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();

        if (GUILayout.Button("GetSpriteInfo"))
        {
            GetSpriteInfo();
        }

        ScrollPos = GUILayout.BeginScrollView(ScrollPos);

        if (Script.SpriteInfoList != null)
        {
            for (int i = 0; i < Script.SpriteInfoList.Count; i++)
            {
                SpriteInfo spriteInfo = Script.SpriteInfoList[i];

                GUILayout.BeginHorizontal();

                EditorGUILayout.ObjectField("", spriteInfo.Sprite, typeof(Sprite), false);
                
                GUILayout.BeginVertical();

                EditorGUILayout.LabelField("ID : " + spriteInfo.ID);
                EditorGUILayout.LabelField("Name : " + spriteInfo.Name);
                EditorGUILayout.LabelField("Rect : " + spriteInfo.Rect);
                EditorGUILayout.LabelField("Pivot : " + spriteInfo.Pivot);
                EditorGUILayout.LabelField("");

                GUILayout.EndVertical();

                GUILayout.EndHorizontal();
            }
        }

        GUILayout.EndScrollView();
    }


    private void GetSpriteInfo()
    {
        Script.SpriteInfoList = new List<SpriteInfo>();

        string path = AssetDatabase.GetAssetPath(Script.Texture);

        Object[] objects = AssetDatabase.LoadAllAssetsAtPath(path);

        for (int i = 0; i < objects.Length; i++)
        {
            if (objects[i] is Sprite)
            {
                Sprite sprite = (Sprite) objects[i];
                SpriteInfo spriteInfo = new SpriteInfo();

                spriteInfo.ID = i;
                spriteInfo.Rect = sprite.rect;
                spriteInfo.Pivot = sprite.pivot;
                spriteInfo.Sprite = sprite;
                spriteInfo.Name = sprite.name;

                Script.SpriteInfoList.Add(spriteInfo);
            }
        }
    }
}