//
// (C) Copyright 2003-2023 by Autodesk, Inc.
//
// Permission to use, copy, modify, and distribute this software in
// object code form for any purpose and without fee is hereby granted,
// provided that the above copyright notice appears in all copies and
// that both that copyright notice and the limited warranty and
// restricted rights notice below appear in all supporting
// documentation.
//
// AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
// AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
// UNINTERRUPTED OR ERROR FREE.
//
// Use, duplication, or disclosure by the U.S. Government is subject to
// restrictions set forth in FAR 52.227-19 (Commercial Computer
// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
// (Rights in Technical Data and Computer Software), as applicable.
//

using System;
using System.IO;
using System.Collections.Generic;
using Autodesk.Revit;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Autodesk.Revit.ApplicationServices;

namespace Revit.SDK.Samples.WindowWizard.CS
{
    /// <summary>
    /// Inherited from WindowCreation class
    /// </summary>
    class DoubleHungWinCreation : WindowCreation
    {
        #region Class Memeber Variables
        /// <summary>
        /// store the Application
        /// </summary>
        private UIApplication m_application;

        /// <summary>
        /// store the document
        /// </summary>
        private Document m_document;

        /// <summary>
        /// store the FamilyManager
        /// </summary>
        private FamilyManager m_familyManager;

        /// <summary>
        /// store the CreateDimension instance
        /// </summary>
        CreateDimension m_dimensionCreator;

        /// <summary>
        /// store the CreateExtrusion instance
        /// </summary>
        CreateExtrusion m_extrusionCreator;

        /// <summary>
        /// store the sash referenceplane
        /// </summary>
        ReferencePlane m_sashPlane;

        /// <summary>
        /// store the center referenceplane
        /// </summary>
        ReferencePlane m_centerPlane;

        /// <summary>
        /// store the exterior referenceplane
        /// </summary>
        ReferencePlane m_exteriorPlane;

        /// <summary>
        /// store the top referenceplane
        /// </summary>
        ReferencePlane m_topPlane;

        /// <summary>
        /// store the sill referenceplane
        /// </summary>
        ReferencePlane m_sillPlane;

        /// <summary>
        /// store the right view of the document
        /// </summary>
        Autodesk.Revit.DB.View m_rightView;

        /// <summary>
        /// store the frame category
        /// </summary>
        Category m_frameCat;

        /// <summary>
        /// store the glass category
        /// </summary>
        Category m_glassCat;

        /// <summary>
        /// store the thickness parameter of wall
        /// </summary>
        double m_wallThickness;

        /// <summary>
        /// store the height parameter of wall
        /// </summary>
        double m_height;

        /// <summary>
        /// store the width parameter of wall
        /// </summary>
        double m_width;

        /// <summary>
        /// store the sillheight parameter of wall
        /// </summary>
        double m_sillHeight;

        /// <summary>
        /// store the windowInset parameter of wall
        /// </summary>
        double m_windowInset;

        /// <summary>
        /// Store the height value of wall
        /// </summary>
        double m_wallHeight;

        /// <summary>
        /// Store the width value of wall
        /// </summary>
        double m_wallWidth;

        /// <summary>
        /// store the glass material ID
        /// </summary>
        ElementId m_glassMatID;

        /// <summary>
        /// store the sash material ID
        /// </summary>
        ElementId m_sashMatID;
        #endregion

        /// <summary>
        /// constructor of DoubleHungWinCreation
        /// </summary>
        /// <param name="para">WizardParameter</param>
        /// <param name="commandData">ExternalCommandData</param>
        public DoubleHungWinCreation(WizardParameter para, ExternalCommandData commandData)
            : base(para)
        {
            m_application = commandData.Application;
            m_document = commandData.Application.ActiveUIDocument.Document;
            m_familyManager = m_document.FamilyManager;

            using (Transaction tran = new Transaction(m_document, "InitializeWindowWizard"))
            {
                tran.Start();

                CollectTemplateInfo();
                para.Validator = new ValidateWindowParameter(m_wallHeight, m_wallWidth);
                switch (m_document.DisplayUnitSystem)
                {
                    case Autodesk.Revit.DB.DisplayUnit.METRIC:
                        para.Validator.IsMetric = true;
                        break;
                    case Autodesk.Revit.DB.DisplayUnit.IMPERIAL:
                        para.Validator.IsMetric = false;
                        break;
                }
                para.PathName = Path.GetDirectoryName(para.PathName) + "Double Hung.rfa";

                CreateCommon();

                tran.Commit();
            }
            
        }

        #region Class Implementation
        /// <summary>
        /// The implementation of CreateFrame()
        /// </summary>
        public override void CreateFrame()
        {
            SubTransaction subTransaction = new SubTransaction(m_document);
            subTransaction.Start();

            //create sash referenceplane and exterior referenceplane
            CreateRefPlane refPlaneCreator = new CreateRefPlane();
            if (m_sashPlane == null)
                m_sashPlane = refPlaneCreator.Create(m_document, m_centerPlane, m_rightView, new Autodesk.Revit.DB.XYZ(0, m_wallThickness / 2 - m_windowInset, 0), new Autodesk.Revit.DB.XYZ(0, 0, 1), "Sash");
            if (m_exteriorPlane == null)
                m_exteriorPlane = refPlaneCreator.Create(m_document, m_centerPlane, m_rightView, new Autodesk.Revit.DB.XYZ(0, m_wallThickness / 2, 0), new Autodesk.Revit.DB.XYZ(0, 0, 1), "MyExterior");
            m_document.Regenerate();

            //get the wall in the document and retrieve the exterior face
            List<Wall> walls = Utility.GetElements<Wall>(m_application, m_document);
            Face exteriorWallFace = GeoHelper.GetWallFace(walls[0], m_rightView, true);
            if (exteriorWallFace == null)
                return;

            //add dimension between sash reference plane and wall face,and add parameter "Window Inset",label the dimension with window-inset parameter
            Dimension windowInsetDimension = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, exteriorWallFace);
            FamilyParameter windowInsetPara = m_familyManager.AddParameter("Window Inset", new ForgeTypeId(), SpecTypeId.Length, false);
            m_familyManager.Set(windowInsetPara, m_windowInset);
            windowInsetDimension.FamilyLabel = windowInsetPara;

            //create the exterior frame            
            double frameCurveOffset1 = 0.075;
            CurveArray curveArr1 = m_extrusionCreator.CreateRectangle(m_width / 2, -m_width / 2, m_sillHeight + m_height, m_sillHeight, 0);
            CurveArray curveArr2 = m_extrusionCreator.CreateCurveArrayByOffset(curveArr1, frameCurveOffset1);
            CurveArrArray curveArrArray1 = new CurveArrArray();
            curveArrArray1.Append(curveArr1);
            curveArrArray1.Append(curveArr2);
            Extrusion extFrame = m_extrusionCreator.NewExtrusion(curveArrArray1, m_sashPlane, m_wallThickness / 2 + m_wallThickness / 12, -m_windowInset);
            extFrame.SetVisibility(CreateVisibility());
            m_document.Regenerate();

            //add alignment between wall face and exterior frame face
            exteriorWallFace = GeoHelper.GetWallFace(walls[0], m_rightView, true);  // Get the face again as the document is regenerated.
            Face exteriorExtrusionFace1 = GeoHelper.GetExtrusionFace(extFrame, m_rightView, true);
            Face interiorExtrusionFace1 = GeoHelper.GetExtrusionFace(extFrame, m_rightView, false);
            CreateAlignment alignmentCreator = new CreateAlignment(m_document);
            alignmentCreator.AddAlignment(m_rightView, exteriorWallFace, exteriorExtrusionFace1);

            //add dimension between sash referenceplane and exterior frame face and lock the dimension
            Dimension extFrameWithSashPlane = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, interiorExtrusionFace1);
            extFrameWithSashPlane.IsLocked = true;
            m_document.Regenerate();

            //create the interior frame                
            double frameCurveOffset2 = 0.125;
            CurveArray curveArr3 = m_extrusionCreator.CreateRectangle(m_width / 2, -m_width / 2, m_sillHeight + m_height, m_sillHeight, 0);
            CurveArray curveArr4 = m_extrusionCreator.CreateCurveArrayByOffset(curveArr3, frameCurveOffset2);
            m_document.Regenerate();

            CurveArrArray curveArrArray2 = new CurveArrArray();
            curveArrArray2.Append(curveArr3);
            curveArrArray2.Append(curveArr4);
            Extrusion intFrame = m_extrusionCreator.NewExtrusion(curveArrArray2, m_sashPlane, m_wallThickness - m_windowInset, m_wallThickness / 2 + m_wallThickness / 12);
            intFrame.SetVisibility(CreateVisibility());
            m_document.Regenerate();

            //add alignment between interior face of wall and interior frame face
            Face interiorWallFace = GeoHelper.GetWallFace(walls[0], m_rightView, false);
            Face interiorExtrusionFace2 = GeoHelper.GetExtrusionFace(intFrame, m_rightView, false);
            Face exteriorExtrusionFace2 = GeoHelper.GetExtrusionFace(intFrame, m_rightView, true);
            alignmentCreator.AddAlignment(m_rightView, interiorWallFace, interiorExtrusionFace2);

            //add dimension between sash referenceplane and interior frame face and lock the dimension
            Dimension intFrameWithSashPlane = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, exteriorExtrusionFace2);
            intFrameWithSashPlane.IsLocked = true;

            //create the sill frame
            CurveArray sillCurs = m_extrusionCreator.CreateRectangle(m_width / 2, -m_width / 2, m_sillHeight + frameCurveOffset1, m_sillHeight, 0);
            CurveArrArray sillCurveArray = new CurveArrArray();
            sillCurveArray.Append(sillCurs);
            Extrusion sillFrame = m_extrusionCreator.NewExtrusion(sillCurveArray, m_sashPlane, -m_windowInset, -m_windowInset - 0.1);
            m_document.Regenerate();

            //add alignment between wall face and sill frame face
            exteriorWallFace = GeoHelper.GetWallFace(walls[0], m_rightView, true);  // Get the face again as the document is regenerated.
            Face sillExtFace = GeoHelper.GetExtrusionFace(sillFrame, m_rightView, false);
            alignmentCreator.AddAlignment(m_rightView, sillExtFace, exteriorWallFace);
            m_document.Regenerate();

            //set subcategories of the frames
            if (m_frameCat != null)
            {
                extFrame.Subcategory = m_frameCat;
                intFrame.Subcategory = m_frameCat;
                sillFrame.Subcategory = m_frameCat;
            }
            subTransaction.Commit();
        }

        /// <summary>
        /// The implementation of CreateSash(),and creating the Window Sash Solid Geometry
        /// </summary>
        public override void CreateSash()
        {
            double frameCurveOffset1 = 0.075;
            double frameDepth = 7 * m_wallThickness / 12 + m_windowInset;
            double sashCurveOffset = 0.075;
            double sashDepth = (frameDepth - m_windowInset) / 2;

            //get the exterior view and sash referenceplane which are used in this process
            Autodesk.Revit.DB.View exteriorView = Utility.GetViewByName("Exterior", m_application, m_document);
            SubTransaction subTransaction = new SubTransaction(m_document);
            subTransaction.Start();

            //add a middle reference plane between the top referenceplane and sill referenceplane
            CreateRefPlane refPlaneCreator = new CreateRefPlane();
            ReferencePlane middlePlane = refPlaneCreator.Create(m_document, m_topPlane, exteriorView, new Autodesk.Revit.DB.XYZ(0, 0, -m_height / 2), new Autodesk.Revit.DB.XYZ(0, -1, 0), "tempmiddle");
            m_document.Regenerate();

            //add dimension between top, sill, and middle reference plane, make the dimension segment equal
            Dimension dim = m_dimensionCreator.AddDimension(exteriorView, m_topPlane, m_sillPlane, middlePlane);
            dim.AreSegmentsEqual = true;

            //create first sash           
            CurveArray curveArr5 = m_extrusionCreator.CreateRectangle(m_width / 2 - frameCurveOffset1, -m_width / 2 + frameCurveOffset1, m_sillHeight + m_height / 2 + sashCurveOffset / 2, m_sillHeight + frameCurveOffset1, 0);
            CurveArray curveArr6 = m_extrusionCreator.CreateCurveArrayByOffset(curveArr5, sashCurveOffset);
            m_document.Regenerate();

            CurveArrArray curveArrArray3 = new CurveArrArray();
            curveArrArray3.Append(curveArr5);
            curveArrArray3.Append(curveArr6);
            Extrusion sash1 = m_extrusionCreator.NewExtrusion(curveArrArray3, m_sashPlane, 2 * sashDepth, sashDepth);
            m_document.Regenerate();

            Face esashFace1 = GeoHelper.GetExtrusionFace(sash1, m_rightView, true);
            Face isashFace1 = GeoHelper.GetExtrusionFace(sash1, m_rightView, false);
            Dimension sashDim1 = m_dimensionCreator.AddDimension(m_rightView, esashFace1, isashFace1);
            sashDim1.IsLocked = true;
            Dimension sashWithPlane1 = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, isashFace1);
            sashWithPlane1.IsLocked = true;
            sash1.SetVisibility(CreateVisibility());

            //create second sash
            CurveArray curveArr7 = m_extrusionCreator.CreateRectangle(m_width / 2 - frameCurveOffset1, -m_width / 2 + frameCurveOffset1, m_sillHeight + m_height - frameCurveOffset1, m_sillHeight + m_height / 2 - sashCurveOffset / 2, 0);
            CurveArray curveArr8 = m_extrusionCreator.CreateCurveArrayByOffset(curveArr7, sashCurveOffset);
            m_document.Regenerate();

            CurveArrArray curveArrArray4 = new CurveArrArray();
            curveArrArray4.Append(curveArr7);
            curveArrArray4.Append(curveArr8);
            Extrusion sash2 = m_extrusionCreator.NewExtrusion(curveArrArray4, m_sashPlane, sashDepth, 0);
            sash2.SetVisibility(CreateVisibility());
            m_document.Regenerate();

            Face esashFace2 = GeoHelper.GetExtrusionFace(sash2, m_rightView, true);
            Face isashFace2 = GeoHelper.GetExtrusionFace(sash2, m_rightView, false);
            Dimension sashDim2 = m_dimensionCreator.AddDimension(m_rightView, esashFace2, isashFace2);
            sashDim2.IsLocked = true;
            Dimension sashWithPlane2 = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, isashFace2);
            m_document.Regenerate();
            sashWithPlane2.IsLocked = true;

            //set category of the sash extrusions
            if (m_frameCat != null)
            {
                sash1.Subcategory = m_frameCat;
                sash2.Subcategory = m_frameCat;
            }
            Autodesk.Revit.DB.ElementId id = m_sashMatID;
            sash1.get_Parameter(BuiltInParameter.MATERIAL_ID_PARAM).Set(id);
            sash2.get_Parameter(BuiltInParameter.MATERIAL_ID_PARAM).Set(id);
            subTransaction.Commit();
        }

        /// <summary>
        /// The implementation of CreateGlass(), creating the Window Glass Solid Geometry      
        /// </summary>
        public override void CreateGlass()
        {
            double frameCurveOffset1 = 0.075;
            double frameDepth = m_wallThickness - 0.15;
            double sashCurveOffset = 0.075;
            double sashDepth = (frameDepth - m_windowInset) / 2;
            double glassDepth = 0.05;
            double glassOffsetSash = 0.05; //from the exterior of the sash

            //create first glass            
            SubTransaction subTransaction = new SubTransaction(m_document);
            subTransaction.Start();
            CurveArray curveArr9 = m_extrusionCreator.CreateRectangle(m_width / 2 - frameCurveOffset1 - sashCurveOffset, -m_width / 2 + frameCurveOffset1 + sashCurveOffset, m_sillHeight + m_height / 2 - sashCurveOffset / 2, m_sillHeight + frameCurveOffset1 + sashCurveOffset, 0);
            m_document.Regenerate();

            CurveArrArray curveArrArray5 = new CurveArrArray();
            curveArrArray5.Append(curveArr9);
            Extrusion glass1 = m_extrusionCreator.NewExtrusion(curveArrArray5, m_sashPlane, sashDepth + glassOffsetSash + glassDepth, sashDepth + glassOffsetSash);
            m_document.Regenerate();
            glass1.SetVisibility(CreateVisibility());
            m_document.Regenerate();
            Face eglassFace1 = GeoHelper.GetExtrusionFace(glass1, m_rightView, true);
            Face iglassFace1 = GeoHelper.GetExtrusionFace(glass1, m_rightView, false);
            Dimension glassDim1 = m_dimensionCreator.AddDimension(m_rightView, eglassFace1, iglassFace1);
            glassDim1.IsLocked = true;
            Dimension glass1WithSashPlane = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, eglassFace1);
            glass1WithSashPlane.IsLocked = true;

            //create the second glass
            CurveArray curveArr10 = m_extrusionCreator.CreateRectangle(m_width / 2 - frameCurveOffset1 - sashCurveOffset, -m_width / 2 + frameCurveOffset1 + sashCurveOffset, m_sillHeight + m_height - frameCurveOffset1 - sashCurveOffset, m_sillHeight + m_height / 2 + sashCurveOffset / 2, 0);
            CurveArrArray curveArrArray6 = new CurveArrArray();
            curveArrArray6.Append(curveArr10);
            Extrusion glass2 = m_extrusionCreator.NewExtrusion(curveArrArray6, m_sashPlane, glassOffsetSash + glassDepth, glassOffsetSash);
            m_document.Regenerate();
            glass2.SetVisibility(CreateVisibility());
            m_document.Regenerate();
            Face eglassFace2 = GeoHelper.GetExtrusionFace(glass2, m_rightView, true);
            Face iglassFace2 = GeoHelper.GetExtrusionFace(glass2, m_rightView, false);
            Dimension glassDim2 = m_dimensionCreator.AddDimension(m_rightView, eglassFace2, iglassFace2);
            glassDim2.IsLocked = true;
            Dimension glass2WithSashPlane = m_dimensionCreator.AddDimension(m_rightView, m_sashPlane, eglassFace2);
            glass2WithSashPlane.IsLocked = true;

            //set category
            if (null != m_glassCat)
            {
                glass1.Subcategory = m_glassCat;
                glass2.Subcategory = m_glassCat;
            }
            Autodesk.Revit.DB.ElementId id = m_glassMatID;

            glass1.get_Parameter(BuiltInParameter.MATERIAL_ID_PARAM).Set(id);
            glass2.get_Parameter(BuiltInParameter.MATERIAL_ID_PARAM).Set(id);
            subTransaction.Commit();
        }

        /// <summary>
        /// The implementation of CreateMaterial()
        /// </summary>
        public override void CreateMaterial()
        {
            SubTransaction subTransaction = new SubTransaction(m_document);
            subTransaction.Start();

            FilteredElementCollector elementCollector = new FilteredElementCollector(m_document);
            elementCollector.WherePasses(new ElementClassFilter(typeof(Material)));
            IList<Element> materials = elementCollector.ToElements();

            foreach (Element materialElement in materials)
            {
                Material material = materialElement as Material;
                if (0 == material.Name.CompareTo(m_para.SashMat))
                {
                    m_sashMatID = material.Id;
                }

                if (0 == material.Name.CompareTo(m_para.GlassMat))
                {
                    m_glassMatID = material.Id;
                }
            }
            subTransaction.Commit();
        }

        /// <summary>
        /// The implementation of CombineAndBuild() ,defining New Window Types
        /// </summary>
        public override void CombineAndBuild()
        {
            SubTransaction subTransaction = new SubTransaction(m_document);
            subTransaction.Start();
            foreach (String type in m_para.WinParaTab.Keys)
            {
                WindowParameter para = m_para.WinParaTab[type] as WindowParameter;

                newFamilyType(para);
            }

            subTransaction.Commit();
            
        }

        /// <summary>
        /// The implementation of Creation(), defining the way to do the whole creation.
        /// </summary>
        public override bool Creation()
        {
            using (Autodesk.Revit.DB.Transaction trans = new Transaction(m_document, "FinishWindowWizard"))
            {
                try
                {
                    trans.Start();
                    this.CreateMaterial();
                    this.CreateFrame();
                    this.CreateSash();
                    this.CreateGlass();
                    this.CombineAndBuild();
                    trans.Commit();
                }
                catch (Exception ee)
                {
                    System.Diagnostics.Debug.WriteLine(ee.Message);
                    System.Diagnostics.Debug.WriteLine(ee.StackTrace);
                    return false;
                }
                finally
                {
                    if (trans.HasStarted())
                        trans.RollBack();
                }
            }

            try
            {
                if (File.Exists(m_para.PathName))
                    File.Delete(m_para.PathName);
                m_document.SaveAs(m_para.PathName);
            }
            catch (Exception e)
            {
                System.Diagnostics.Debug.WriteLine("Write to " + m_para.PathName + " Failed");
                System.Diagnostics.Debug.WriteLine(e.Message);
            }
            return true;
        }

        /// <summary>
        /// The method is used to collect template information, specifying the New Window Parameters         
        /// </summary>
        private void CollectTemplateInfo()
        {
            List<Wall> walls = Utility.GetElements<Wall>(m_application, m_document);
            m_wallThickness = walls[0].Width;
            ParameterMap paraMap = walls[0].ParametersMap;
            Parameter wallheightPara = walls[0].get_Parameter(BuiltInParameter.WALL_USER_HEIGHT_PARAM);//paraMap.get_Item("Unconnected Height");
            if (wallheightPara != null)
            {
                m_wallHeight = wallheightPara.AsDouble();
            }

            LocationCurve location = walls[0].Location as LocationCurve;
            m_wallWidth = location.Curve.Length;

            m_windowInset = m_wallThickness / 10;
            FamilyType type = m_familyManager.CurrentType;
            FamilyParameter heightPara = m_familyManager.get_Parameter(BuiltInParameter.WINDOW_HEIGHT);
            FamilyParameter widthPara = m_familyManager.get_Parameter(BuiltInParameter.WINDOW_WIDTH);
            FamilyParameter sillHeightPara = m_familyManager.get_Parameter("Default Sill Height");
            if (type.HasValue(heightPara))
            {
                switch (heightPara.StorageType)
                {
                    case StorageType.Double:
                        m_height = type.AsDouble(heightPara).Value;
                        break;
                    case StorageType.Integer:
                        m_height = type.AsInteger(heightPara).Value;
                        break;
                }
            }
            if (type.HasValue(widthPara))
            {
                switch (widthPara.StorageType)
                {
                    case StorageType.Double:
                        m_width = type.AsDouble(widthPara).Value;
                        break;
                    case StorageType.Integer:
                        m_width = type.AsDouble(widthPara).Value;
                        break;
                }
            }
            if (type.HasValue(sillHeightPara))
            {
                switch (sillHeightPara.StorageType)
                {
                    case StorageType.Double:
                        m_sillHeight = type.AsDouble(sillHeightPara).Value;
                        break;
                    case StorageType.Integer:
                        m_sillHeight = type.AsDouble(sillHeightPara).Value;
                        break;
                }
            }

            //set the height,width and sillheight parameter of the opening
            m_familyManager.Set(m_familyManager.get_Parameter(BuiltInParameter.WINDOW_HEIGHT),
                   m_height);
            m_familyManager.Set(m_familyManager.get_Parameter(BuiltInParameter.WINDOW_WIDTH),
                m_width);
            m_familyManager.Set(m_familyManager.get_Parameter("Default Sill Height"), m_sillHeight);

            //get materials

            FilteredElementCollector elementCollector = new FilteredElementCollector(m_document);
            elementCollector.WherePasses(new ElementClassFilter(typeof(Material)));
            IList<Element> materials = elementCollector.ToElements();

            foreach (Element materialElement in materials)
            {
                Material material = materialElement as Material;
                m_para.GlassMaterials.Add(material.Name);
                m_para.FrameMaterials.Add(material.Name);
            }

            //get categories
            Categories categories = m_document.Settings.Categories;
            Category category = categories.get_Item(BuiltInCategory.OST_Windows);
            CategoryNameMap cnm = category.SubCategories;

            m_frameCat = categories.get_Item(BuiltInCategory.OST_WindowsFrameMullionProjection);
            m_glassCat = categories.get_Item(BuiltInCategory.OST_WindowsGlassProjection);

            //get referenceplanes
            List<ReferencePlane> planes = Utility.GetElements<ReferencePlane>(m_application, m_document);
            foreach (ReferencePlane p in planes)
            {
                if (p.Name.Equals("Sash"))
                    m_sashPlane = p;
                if (p.Name.Equals("Exterior"))
                    m_exteriorPlane = p;
                if (p.Name.Equals("Center (Front/Back)"))
                    m_centerPlane = p;
                if (p.Name.Equals("Top") || p.Name.Equals("Head"))
                    m_topPlane = p;
                if (p.Name.Equals("Sill") || p.Name.Equals("Bottom"))
                    m_sillPlane = p;
            }
        }

        /// <summary>
        /// the method is used to create new family type
        /// </summary>
        /// <param name="para">WindowParameter</param>
        /// <returns>indicate whether the NewType is successful</returns>
        private bool newFamilyType(WindowParameter para)//string typeName, double height, double width, double sillHeight)
        {
            DoubleHungWinPara dbhungPara = para as DoubleHungWinPara;
            string typeName = dbhungPara.Type;
            double height = dbhungPara.Height;
            double width = dbhungPara.Width;
            double sillHeight = dbhungPara.SillHeight;
            double windowInset = dbhungPara.Inset;
            switch (m_document.DisplayUnitSystem)
            {
                case Autodesk.Revit.DB.DisplayUnit.METRIC:
                    height = Utility.MetricToImperial(height);
                    width = Utility.MetricToImperial(width);
                    sillHeight = Utility.MetricToImperial(sillHeight);
                    windowInset = Utility.MetricToImperial(windowInset);
                    break;
            }
            try
            {
                FamilyType type = m_familyManager.NewType(typeName);
                m_familyManager.CurrentType = type;
                m_familyManager.Set(m_familyManager.get_Parameter(BuiltInParameter.WINDOW_HEIGHT), height);
                m_familyManager.Set(m_familyManager.get_Parameter(BuiltInParameter.WINDOW_WIDTH), width);
                m_familyManager.Set(m_familyManager.get_Parameter("Default Sill Height"), sillHeight);
                m_familyManager.Set(m_familyManager.get_Parameter("Window Inset"), windowInset);
                return true;
            }
            catch (Exception e)
            {
                System.Diagnostics.Debug.WriteLine(e.Message);
                return false;
            }
        }

        /// <summary>
        /// The method is used to create a FamilyElementVisibility instance
        /// </summary>
        /// <returns>FamilyElementVisibility instance</returns>
        private FamilyElementVisibility CreateVisibility()
        {
            FamilyElementVisibility familyElemVisibility = new FamilyElementVisibility(FamilyElementVisibilityType.Model);
            familyElemVisibility.IsShownInCoarse = true;
            familyElemVisibility.IsShownInFine = true;
            familyElemVisibility.IsShownInMedium = true;
            familyElemVisibility.IsShownInFrontBack = true;
            familyElemVisibility.IsShownInLeftRight = true;
            familyElemVisibility.IsShownInPlanRCPCut = false;
            return familyElemVisibility;
        }

        /// <summary>
        /// The method is used to create common class variables in this class 
        /// </summary>
        private void CreateCommon()
        {
            //create common 
            m_dimensionCreator = new CreateDimension(m_application.Application, m_document);
            m_extrusionCreator = new CreateExtrusion(m_application.Application, m_document);
            m_rightView = Utility.GetViewByName("Right", m_application, m_document);
        }
        #endregion
    }
}