/*     INFINITY CODE 2013-2016      */
/*   http://www.infinity-code.com   */

#if NGUI

using UnityEngine;

namespace InfinityCode.OnlineMapsExamples
{
    [AddComponentMenu("Infinity Code/Online Maps/Examples (API Usage)/uGUICustomTooltipExample")]
    public class NGUICustomTooltipExample : MonoBehaviour
    {
        public GameObject tooltipPrefab;
        public GameObject container;

        private OnlineMapsMarker marker;
        private GameObject tooltip;
        private UIWidget widget;
        private UILabel label;


        // Use this for initialization
	    private void Start ()
        {
            OnlineMapsMarkerBase.OnMarkerDrawTooltip = delegate { };

            marker = OnlineMaps.instance.AddMarker(Vector2.zero, "Hello World");

            OnlineMaps.instance.OnUpdateLate += OnUpdateLate;
        }

        private void OnUpdateLate()
        {
            OnlineMapsMarkerBase tooltipMarker = OnlineMaps.instance.tooltipMarker;
            if (tooltipMarker != null && !string.IsNullOrEmpty(tooltipMarker.label))
            {
                if (tooltip == null)
                {
                    tooltip = Instantiate(tooltipPrefab) as GameObject;
                    tooltip.transform.parent = container.transform;
                    tooltip.transform.localScale = Vector3.one;
                    widget = tooltip.GetComponent<UIWidget>();
                    label = widget.GetComponentInChildren<UILabel>();
                }

                Vector2 screenPosition = OnlineMapsControlBase.instance.GetScreenPosition(tooltipMarker.position);

                float ratio = (float)widget.root.activeHeight / Screen.height;
                float width = Mathf.Ceil(Screen.width * ratio);

                screenPosition.x = (screenPosition.x / Screen.width - 0.5f) * width;
                screenPosition.y = (screenPosition.y / Screen.height - 0.5f) * widget.root.activeHeight;

                label.text = tooltipMarker.label;

                Vector2 buttonOffset = new Vector2(-widget.width / 2, widget.height);
                widget.SetRect(screenPosition.x + buttonOffset.x, screenPosition.y + buttonOffset.y, widget.width, widget.height);
            }
            else if (tooltip != null)
            {
                DestroyImmediate(tooltip);
                tooltip = null;
            }
        }
    }
}

#endif