MarkerProperties.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / MS / Internal / Text / MarkerProperties.cs / 1 / MarkerProperties.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// Copyright (C) Microsoft Corporation.  All rights reserved.
//
// File: MarkerProperties.cs 
//
// Description: Marker properties. 
// 
// History:
//  06/06/2003 : [....] - created. 
//  07/18/2003 : [....] - converted to new Property Engine.
//
//---------------------------------------------------------------------------
 
using System;
using System.Windows; 
using System.Windows.Documents; 
using System.Windows.Media.TextFormatting;
using MS.Internal.PtsHost.UnsafeNativeMethods; // Relative line height from PTS 
namespace MS.Internal.Text
{
    // ---------------------------------------------------------------------
    // Marker properties. 
    // ---------------------------------------------------------------------
    internal sealed class MarkerProperties 
    { 
        /// 
        /// Constructor. 
        /// 
        /// 
        /// The listWidth parameter gives the width of the list element, and is used to clip the MarkerOffset value
        ///  
        internal MarkerProperties(List list, int index)
        { 
            _offset = list.MarkerOffset; 
            // Negative value for offset because it is required by TextFormatter line box model.
            // If offset is NaN - default value - set it as 0.5 * line height 
            if (Double.IsNaN(_offset))
            {
                // Obtain list's line height to set defualt marker offsert
                double lineHeight = DynamicPropertyReader.GetLineHeightValue(list); 
                _offset = - 0.5 * lineHeight;
            } 
            else 
            {
                _offset = -_offset; 
            }

            _style = list.MarkerStyle;
            _index = index; 
        }
 
        // ------------------------------------------------------------------ 
        // GetTextMarkerProperties
        // ----------------------------------------------------------------- 
        internal TextMarkerProperties GetTextMarkerProperties(TextParagraphProperties textParaProps)
        {
            return new TextSimpleMarkerProperties(_style, _offset, _index, textParaProps);
        } 

        // ------------------------------------------------------------------ 
        // Marker style 
        // ------------------------------------------------------------------
        private TextMarkerStyle _style; 

        // -----------------------------------------------------------------
        // Distance from line start to the end of the marker symbol.
        // ------------------------------------------------------------------ 
        private double _offset;
 
        // ----------------------------------------------------------------- 
        // Autonumbering counter of counter-style marker.
        // ----------------------------------------------------------------- 
        private int _index;
}
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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