using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class UGuiEmptyImage : MaskableGraphic
{
    protected override void OnPopulateMesh(VertexHelper vh)
    {
        vh.Clear();
    }
    private void OnDrawGizmos()
    {
        Gizmos.color = Color.grey;
        Vector3[] worldCorners = new Vector3[4];
        rectTransform.GetWorldCorners(worldCorners);
        for (int i = 0; i < worldCorners.Length; i++)
        {
            var target = i + 1;
            if (target >= worldCorners.Length)
                target = 0;
            Gizmos.DrawLine(worldCorners[i], worldCorners[target]);
        }
    }
}