xmlfixedPageInfo.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / MS / Internal / IO / Packaging / xmlfixedPageInfo.cs / 1305600 / xmlfixedPageInfo.cs
                        
                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// Description: 
//              Implements a DOM-based subclass of the FixedPageInfo abstract class. 
//              The class functions as an array of XmlGlyphRunInfo's in markup order.
// 
// History:
//  05/06/2004: JohnLarc: Initial implementation
//---------------------------------------------------------------------------
 
using System;
using System.Windows;                   // For ExceptionStringTable 
using System.Xml;                       // For DOM objects 
using System.Diagnostics;               // For Assert
using System.Globalization;             // For CultureInfo 

namespace MS.Internal.IO.Packaging
{
    internal class XmlFixedPageInfo : MS.Internal.FixedPageInfo 
    {
        //----------------------------------------------------- 
        // 
        //  Constructors
        // 
        //-----------------------------------------------------

        #region Constructors
        ///  
        /// Initialize object from DOM node.
        ///  
        ///  
        /// The DOM node is assumed to be a XAML FixedPage element. Its namespace URI
        /// is subsequently used to look for its nested Glyphs elements (see private property NodeList). 
        /// 
        internal XmlFixedPageInfo(XmlNode fixedPageNode)
        {
            _pageNode = fixedPageNode; 
            Debug.Assert(_pageNode != null);
            if (_pageNode.LocalName != _fixedPageName || _pageNode.NamespaceURI != ElementTableKey.FixedMarkupNamespace) 
            { 
                throw new ArgumentException(SR.Get(SRID.UnexpectedXmlNodeInXmlFixedPageInfoConstructor,
                    _pageNode.NamespaceURI, _pageNode.LocalName, 
                    ElementTableKey.FixedMarkupNamespace, _fixedPageName));
            }
        }
        #endregion Constructors 

        //------------------------------------------------------ 
        // 
        //  Internal Methods
        // 
        //-----------------------------------------------------

        #region Internal Methods
        ///  
        /// Get the glyph run at zero-based position 'position'.
        ///  
        ///  
        /// Returns null for a nonexistent position. No exception raised.
        ///  
        internal override GlyphRunInfo GlyphRunAtPosition(int position)
        {
            if (position < 0 || position >= GlyphRunList.Length)
            { 
                return null;
            } 
            if (GlyphRunList[position] == null) 
            {
                GlyphRunList[position] = new XmlGlyphRunInfo(NodeList[position]); 
            }
            return GlyphRunList[position];
        }
        #endregion Internal Methods 

        //------------------------------------------------------ 
        // 
        //  Internal Properties
        // 
        //------------------------------------------------------

        #region Internal Properties
        ///  
        /// Indicates the number of glyph runs on the page.
        ///  
        internal override int GlyphRunCount 
        {
            get 
            {
                return GlyphRunList.Length;
            }
        } 
        #endregion Internal Properties
 
        //----------------------------------------------------- 
        //
        //   Private Properties 
        //
        //------------------------------------------------------

        #region Private Properties 
        /// 
        /// Lazily initialize _glyphRunList, an array of XmlGlyphInfo objects, 
        /// using the NodeList private property. 
        /// 
        ///  
        /// When using Visual Studio to step through code using this property, make sure the option
        /// "Allow property evaluation in variables windows" is unchecked.
        /// 
        private XmlGlyphRunInfo[] GlyphRunList 
        {
            get 
            { 
                if (_glyphRunList == null)
                { 
                    _glyphRunList = new XmlGlyphRunInfo[NodeList.Count];
                }
                return _glyphRunList;
            } 
        }
 
        ///  
        /// Lazily initialize the list of Glyphs elements on the page using XPath.
        ///  
        /// 
        /// When using Visual Studio to step through code using this property, make sure the option
        /// "Allow property evaluation in variables windows" is unchecked.
        ///  
        private XmlNodeList NodeList
        { 
            get 
            {
                if (_nodeList == null) 
                {
                    string glyphRunQuery = String.Format(CultureInfo.InvariantCulture, ".//*[namespace-uri()='{0}' and local-name()='{1}']",
                        ElementTableKey.FixedMarkupNamespace,
                        _glyphRunName); 
                    _nodeList = _pageNode.SelectNodes(glyphRunQuery);
                } 
                return _nodeList; 
            }
        } 
        #endregion Private Properties

        //-----------------------------------------------------
        // 
        //  Private Fields
        // 
        //----------------------------------------------------- 

        #region Private Fields 

        #region Constants
        private const string _fixedPageName = "FixedPage";
        private const string _glyphRunName = "Glyphs"; 
        #endregion Constants
 
        private XmlNode     _pageNode; 
        private XmlNodeList _nodeList = null;
        private XmlGlyphRunInfo[] _glyphRunList = null; 
        #endregion Private Fields

    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// Description: 
//              Implements a DOM-based subclass of the FixedPageInfo abstract class. 
//              The class functions as an array of XmlGlyphRunInfo's in markup order.
// 
// History:
//  05/06/2004: JohnLarc: Initial implementation
//---------------------------------------------------------------------------
 
using System;
using System.Windows;                   // For ExceptionStringTable 
using System.Xml;                       // For DOM objects 
using System.Diagnostics;               // For Assert
using System.Globalization;             // For CultureInfo 

namespace MS.Internal.IO.Packaging
{
    internal class XmlFixedPageInfo : MS.Internal.FixedPageInfo 
    {
        //----------------------------------------------------- 
        // 
        //  Constructors
        // 
        //-----------------------------------------------------

        #region Constructors
        ///  
        /// Initialize object from DOM node.
        ///  
        ///  
        /// The DOM node is assumed to be a XAML FixedPage element. Its namespace URI
        /// is subsequently used to look for its nested Glyphs elements (see private property NodeList). 
        /// 
        internal XmlFixedPageInfo(XmlNode fixedPageNode)
        {
            _pageNode = fixedPageNode; 
            Debug.Assert(_pageNode != null);
            if (_pageNode.LocalName != _fixedPageName || _pageNode.NamespaceURI != ElementTableKey.FixedMarkupNamespace) 
            { 
                throw new ArgumentException(SR.Get(SRID.UnexpectedXmlNodeInXmlFixedPageInfoConstructor,
                    _pageNode.NamespaceURI, _pageNode.LocalName, 
                    ElementTableKey.FixedMarkupNamespace, _fixedPageName));
            }
        }
        #endregion Constructors 

        //------------------------------------------------------ 
        // 
        //  Internal Methods
        // 
        //-----------------------------------------------------

        #region Internal Methods
        ///  
        /// Get the glyph run at zero-based position 'position'.
        ///  
        ///  
        /// Returns null for a nonexistent position. No exception raised.
        ///  
        internal override GlyphRunInfo GlyphRunAtPosition(int position)
        {
            if (position < 0 || position >= GlyphRunList.Length)
            { 
                return null;
            } 
            if (GlyphRunList[position] == null) 
            {
                GlyphRunList[position] = new XmlGlyphRunInfo(NodeList[position]); 
            }
            return GlyphRunList[position];
        }
        #endregion Internal Methods 

        //------------------------------------------------------ 
        // 
        //  Internal Properties
        // 
        //------------------------------------------------------

        #region Internal Properties
        ///  
        /// Indicates the number of glyph runs on the page.
        ///  
        internal override int GlyphRunCount 
        {
            get 
            {
                return GlyphRunList.Length;
            }
        } 
        #endregion Internal Properties
 
        //----------------------------------------------------- 
        //
        //   Private Properties 
        //
        //------------------------------------------------------

        #region Private Properties 
        /// 
        /// Lazily initialize _glyphRunList, an array of XmlGlyphInfo objects, 
        /// using the NodeList private property. 
        /// 
        ///  
        /// When using Visual Studio to step through code using this property, make sure the option
        /// "Allow property evaluation in variables windows" is unchecked.
        /// 
        private XmlGlyphRunInfo[] GlyphRunList 
        {
            get 
            { 
                if (_glyphRunList == null)
                { 
                    _glyphRunList = new XmlGlyphRunInfo[NodeList.Count];
                }
                return _glyphRunList;
            } 
        }
 
        ///  
        /// Lazily initialize the list of Glyphs elements on the page using XPath.
        ///  
        /// 
        /// When using Visual Studio to step through code using this property, make sure the option
        /// "Allow property evaluation in variables windows" is unchecked.
        ///  
        private XmlNodeList NodeList
        { 
            get 
            {
                if (_nodeList == null) 
                {
                    string glyphRunQuery = String.Format(CultureInfo.InvariantCulture, ".//*[namespace-uri()='{0}' and local-name()='{1}']",
                        ElementTableKey.FixedMarkupNamespace,
                        _glyphRunName); 
                    _nodeList = _pageNode.SelectNodes(glyphRunQuery);
                } 
                return _nodeList; 
            }
        } 
        #endregion Private Properties

        //-----------------------------------------------------
        // 
        //  Private Fields
        // 
        //----------------------------------------------------- 

        #region Private Fields 

        #region Constants
        private const string _fixedPageName = "FixedPage";
        private const string _glyphRunName = "Glyphs"; 
        #endregion Constants
 
        private XmlNode     _pageNode; 
        private XmlNodeList _nodeList = null;
        private XmlGlyphRunInfo[] _glyphRunList = null; 
        #endregion Private Fields

    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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xmlfixedPageInfo.cs source code in C# .NET

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