// Copyright 2012 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using ESRI.ArcGIS.ADF.CATIDs;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Catalog;

namespace CustomRootObject_CS
{
    [Guid("04ac798b-a358-4beb-b656-cd1f3416cb97")]
    [ClassInterface(ClassInterfaceType.None)]
    [ProgId("CustomRootObject2008.clsGxStyleGallery")]
    public class clsGxStyleGallery : ESRI.ArcGIS.Catalog.IGxObject,ESRI.ArcGIS.Catalog.IGxObjectContainer
    {
        #region COM Registration Function(s)
        [ComRegisterFunction()]
        [ComVisible(false)]
        static void RegisterFunction(Type registerType)
        {
            // Required for ArcGIS Component Category Registrar support
            ArcGISCategoryRegistration(registerType);

            //
            // TODO: Add any COM registration code here
            //
        }

        [ComUnregisterFunction()]
        [ComVisible(false)]
        static void UnregisterFunction(Type registerType)
        {
            // Required for ArcGIS Component Category Registrar support
            ArcGISCategoryUnregistration(registerType);

            //
            // TODO: Add any COM unregistration code here
            //
        }

        #region ArcGIS Component Category Registrar generated code
        /// <summary>
        /// Required method for ArcGIS Component Category registration -
        /// Do not modify the contents of this method with the code editor.
        /// </summary>
        private static void ArcGISCategoryRegistration(Type registerType)
        {
            string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
            GxRootObjects.Register(regKey);

        }
        /// <summary>
        /// Required method for ArcGIS Component Category unregistration -
        /// Do not modify the contents of this method with the code editor.
        /// </summary>
        private static void ArcGISCategoryUnregistration(Type registerType)
        {
            string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
            GxRootObjects.Unregister(regKey);

        }

        #endregion
        #endregion

        #region Member Variables
        private IGxObject m_pParent;
        private IGxCatalog m_pCatalog;
        public IStyleGallery m_pGallery;
        private IGxObjectArray m_pChildren;
        private bool m_childrenLoaded;
        #endregion

        #region Constructors
        public clsGxStyleGallery()
            : base()
        {
            m_pChildren = new GxObjectArray();
            m_childrenLoaded = false;
            m_pGallery = new ESRI.ArcGIS.Framework.StyleGallery();
        }
        public IStyleGallery StyleGallery
        {
            get
            {
                return m_pGallery;
            }
        }
        #endregion

        #region IGxObject Implementations
        public void Attach(ESRI.ArcGIS.Catalog.IGxObject Parent, ESRI.ArcGIS.Catalog.IGxCatalog pCatalog)
        {
            m_pParent = Parent;
            m_pCatalog = pCatalog;
        }

        public string BaseName
        {
            get
            {
                return "Style Gallery";
            }
        }

        public string Category
        {
            get
            {
                return "Style Gallery Manager";
            }
        }

        public ESRI.ArcGIS.esriSystem.UID ClassID
        {
            get
            {
                ESRI.ArcGIS.esriSystem.UID pUID = null;
                pUID = new UID();
                pUID.Value = "CustomRootObject_CS.clsGxStyleGallery";
                return pUID;
            }
        }

        public void Detach()
        {
            //It is our responsibility to detach all of our children before deleting
            //them.  This is to avoid circular referencing problems.
            int i = 0;
            int tempFor1 = m_pChildren.Count;
            for (i = 0; i <= tempFor1; i++)
            {
                m_pChildren.Item(i).Detach();
            }
            m_pParent = null;
            m_pCatalog = null;
        }

        public string FullName
        {
            get
            {
                return "Style Gallery";
            }
        }

        public ESRI.ArcGIS.esriSystem.IName InternalObjectName
        {
            get
            {
                return null;
            }
        }

        public bool IsValid
        {
            get
            {
                return true;
            }
        }

        public string Name
        {
            get
            {
                return "Style Gallery";
            }
        }

        public ESRI.ArcGIS.Catalog.IGxObject Parent
        {
            get
            {
                return m_pParent;
            }
        }

        public void Refresh()
        {
            //Unload and reload the children.
            m_pChildren.Empty();
            m_childrenLoaded = false;
            LoadChildren();
        }
        #endregion

        #region IGxObjectContainer Implementations
        public ESRI.ArcGIS.Catalog.IGxObject AddChild(ESRI.ArcGIS.Catalog.IGxObject child)
        {
            return null;
        }

        public bool AreChildrenViewable
        {
            get
            {
                return true;
            }
        }

        public ESRI.ArcGIS.Catalog.IEnumGxObject Children
        {
            get
            {
                LoadChildren();
                return (IEnumGxObject)m_pChildren;
            }
        }

        public void DeleteChild(ESRI.ArcGIS.Catalog.IGxObject child)
        {
            // TODO: Add clsGxStyleGallery.DeleteChild implementation
        }

        public bool HasChildren
        {
            get
            {
                return true;
            }
        }
        #endregion

        private void LoadChildren()
        {
            if (m_childrenLoaded)
                return;

            //Our children are GxContainer objects that represent class folders
            //for all the different types of styles.  Loop over each of these
            //types, and create a clsGxStyleGalleryClass object for it, and attach it to the
            //tree correctly.
            int i = 0;
            int tempFor1 = m_pGallery.ClassCount;
            for (i = 0; i < tempFor1; i++)
            {
                CustomRootObject_CS.clsGxStyleGalleryClass pGxClass = null;
                pGxClass = new CustomRootObject_CS.clsGxStyleGalleryClass();
                pGxClass.StyleGalleryClass = (IStyleGalleryClass)m_pGallery.get_Class(i);

                IGxObject pGxObject = null;
                pGxObject = pGxClass;
                pGxObject.Attach(this, m_pCatalog);
                m_pChildren.Insert(-1, pGxObject);
            }
            m_childrenLoaded = true;
        }

    }
}