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using UnityEditor;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
namespace UIExt
{
static internal class MenuOptions
{
[MenuItem("GameObject/UI Extensions/GridLayoutGroupExt", false,2000)]
static public void AddGridLayoutGroupExt(MenuCommand menuCommand)
{
Debug.Log("AddGridLayoutGroupExt");
}
//[MenuItem("GameObject/UI/Button", false, 2030)]
//static public void AddButton(MenuCommand menuCommand)
//{
// //GameObject go = DefaultControls.CreateButton(GetStandardResources());
// //PlaceUIElementRoot(go, menuCommand);
//}
//private static void PlaceUIElementRoot(GameObject element, MenuCommand menuCommand)
//{
// GameObject parent = menuCommand.context as GameObject;
// if (parent == null || parent.GetComponentInParent<Canvas>() == null)
// {
// parent = GetOrCreateCanvasGameObject();
// }
// string uniqueName = GameObjectUtility.GetUniqueNameForSibling(parent.transform, element.name);
// element.name = uniqueName;
// Undo.RegisterCreatedObjectUndo(element, "Create " + element.name);
// Undo.SetTransformParent(element.transform, parent.transform, "Parent " + element.name);
// GameObjectUtility.SetParentAndAlign(element, parent);
// if (parent != menuCommand.context) // not a context click, so center in sceneview
// SetPositionVisibleinSceneView(parent.GetComponent<RectTransform>(), element.GetComponent<RectTransform>());
// Selection.activeGameObject = element;
//}
//private static void SetPositionVisibleinSceneView(RectTransform canvasRTransform, RectTransform itemTransform)
//{
// // Find the best scene view
// SceneView sceneView = SceneView.lastActiveSceneView;
// if (sceneView == null && SceneView.sceneViews.Count > 0)
// sceneView = SceneView.sceneViews[0] as SceneView;
// // Couldn't find a SceneView. Don't set position.
// if (sceneView == null || sceneView.camera == null)
// return;
// // Create world space Plane from canvas position.
// Vector2 localPlanePosition;
// Camera camera = sceneView.camera;
// Vector3 position = Vector3.zero;
// if (RectTransformUtility.ScreenPointToLocalPointInRectangle(canvasRTransform, new Vector2(camera.pixelWidth / 2, camera.pixelHeight / 2), camera, out localPlanePosition))
// {
// // Adjust for canvas pivot
// localPlanePosition.x = localPlanePosition.x + canvasRTransform.sizeDelta.x * canvasRTransform.pivot.x;
// localPlanePosition.y = localPlanePosition.y + canvasRTransform.sizeDelta.y * canvasRTransform.pivot.y;
// localPlanePosition.x = Mathf.Clamp(localPlanePosition.x, 0, canvasRTransform.sizeDelta.x);
// localPlanePosition.y = Mathf.Clamp(localPlanePosition.y, 0, canvasRTransform.sizeDelta.y);
// // Adjust for anchoring
// position.x = localPlanePosition.x - canvasRTransform.sizeDelta.x * itemTransform.anchorMin.x;
// position.y = localPlanePosition.y - canvasRTransform.sizeDelta.y * itemTransform.anchorMin.y;
// Vector3 minLocalPosition;
// minLocalPosition.x = canvasRTransform.sizeDelta.x * (0 - canvasRTransform.pivot.x) + itemTransform.sizeDelta.x * itemTransform.pivot.x;
// minLocalPosition.y = canvasRTransform.sizeDelta.y * (0 - canvasRTransform.pivot.y) + itemTransform.sizeDelta.y * itemTransform.pivot.y;
// Vector3 maxLocalPosition;
// maxLocalPosition.x = canvasRTransform.sizeDelta.x * (1 - canvasRTransform.pivot.x) - itemTransform.sizeDelta.x * itemTransform.pivot.x;
// maxLocalPosition.y = canvasRTransform.sizeDelta.y * (1 - canvasRTransform.pivot.y) - itemTransform.sizeDelta.y * itemTransform.pivot.y;
// position.x = Mathf.Clamp(position.x, minLocalPosition.x, maxLocalPosition.x);
// position.y = Mathf.Clamp(position.y, minLocalPosition.y, maxLocalPosition.y);
// }
// itemTransform.anchoredPosition = position;
// itemTransform.localRotation = Quaternion.identity;
// itemTransform.localScale = Vector3.one;
//}
//// Helper function that returns a Canvas GameObject; preferably a parent of the selection, or other existing Canvas.
//static public GameObject GetOrCreateCanvasGameObject()
//{
// GameObject selectedGo = Selection.activeGameObject;
// // Try to find a gameobject that is the selected GO or one if its parents.
// Canvas canvas = (selectedGo != null) ? selectedGo.GetComponentInParent<Canvas>() : null;
// if (canvas != null && canvas.gameObject.activeInHierarchy)
// return canvas.gameObject;
// // No canvas in selection or its parents? Then use just any canvas..
// canvas = Object.FindObjectOfType(typeof(Canvas)) as Canvas;
// if (canvas != null && canvas.gameObject.activeInHierarchy)
// return canvas.gameObject;
// // No canvas in the scene at all? Then create a new one.
// return MenuOptions.CreateNewUI();
//}
//static public GameObject CreateNewUI()
//{
// // Root for the UI
// var root = new GameObject("Canvas");
// root.layer = LayerMask.NameToLayer(kUILayerName);
// Canvas canvas = root.AddComponent<Canvas>();
// canvas.renderMode = RenderMode.ScreenSpaceOverlay;
// root.AddComponent<CanvasScaler>();
// root.AddComponent<GraphicRaycaster>();
// Undo.RegisterCreatedObjectUndo(root, "Create " + root.name);
// // if there is no event system add one...
// CreateEventSystem(false);
// return root;
//}
}
}
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