private static void CloseDialog()
        {
            if (s_window != null)
            {
                try
                {
                    s_window.Close();
                }
                catch (Exception ex)
                {
                    Debug.LogError("Close Exception : " + ex);
                }

                s_window = null;
            }
        }
        // Show Window
        //--------------------------------------------------------------
        public static object ShowDialog(apEditor editor,
                                        apMeshGroup srcMeshGroup,
                                        apTransform_Mesh srcMeshTransform,
                                        FUNC_SELECT_MESH_TF_COPY funcResult)
        {
            CloseDialog();

            if (editor == null || editor._portrait == null)
            {
                return(null);
            }



            EditorWindow curWindow = EditorWindow.GetWindow(typeof(apDialog_SelectMeshTransformsToCopy), true, "Select Child Meshes", true);
            apDialog_SelectMeshTransformsToCopy curTool = curWindow as apDialog_SelectMeshTransformsToCopy;

            object loadKey = new object();

            if (curTool != null && curTool != s_window)
            {
                int width  = 500;
                int height = 600;
                s_window          = curTool;
                s_window.position = new Rect((editor.position.xMin + editor.position.xMax) / 2 - (width / 2),
                                             (editor.position.yMin + editor.position.yMax) / 2 - (height / 2),
                                             width, height);
                s_window.Init(editor, loadKey, srcMeshGroup, srcMeshTransform, funcResult);

                return(loadKey);
            }
            else
            {
                return(null);
            }
        }