FixedSOMFixedBlock.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / System / Windows / Documents / FixedSOMFixedBlock.cs / 1 / FixedSOMFixedBlock.cs
                        

                        
                            /*++ 

    File: FixedSOMFixedBlock.cs

    Copyright (C) 2005 Microsoft Corporation. All rights reserved. 

    Description: 
        This class reprsents a table row on the page. It would contain several table cells 

    History: 
       05/17/2005: eleese - Created

--*/
 
namespace System.Windows.Documents
{ 
    using System.Collections; 
    using System.Collections.Generic;
    using System.Windows.Media; 
    using System.Globalization;
    using System.Diagnostics;
    using System.Text;
 
    internal sealed class FixedSOMFixedBlock : FixedSOMPageElement
    { 
        //-------------------------------------------------------------------- 
        //
        // Constructors 
        //
        //---------------------------------------------------------------------

        #region Constructors 
        public FixedSOMFixedBlock(FixedSOMPage page) : base(page)
        { 
        } 
        #endregion Constructors
 
        #region Public Properties

        public double LineHeight
        { 
            get
            { 
                FixedSOMTextRun lastRun = this.LastTextRun; 
                if (lastRun != null)
                { 
                    //Need to check for edge case - subscript or superscript at the end of a line
                    if (this.SemanticBoxes.Count > 1)
                    {
                         FixedSOMTextRun run = this.SemanticBoxes[this.SemanticBoxes.Count - 2] as FixedSOMTextRun; 
                         if (run != null &&
                             lastRun.BoundingRect.Height / run.BoundingRect.Height < 0.75 && 
                             run.BoundingRect.Left != lastRun.BoundingRect.Left && 
                             run.BoundingRect.Right != lastRun.BoundingRect.Right &&
                             run.BoundingRect.Top != lastRun.BoundingRect.Top && 
                             run.BoundingRect.Bottom != lastRun.BoundingRect.Bottom)
                         {
                            return run.BoundingRect.Height;
                         } 
                    }
                    return lastRun.BoundingRect.Height; 
 
                }
                else 
                {
                    return 0;
                }
            } 
        }
 
        //return true if this FixedBlock is a wrapper around a floating image 
        public bool IsFloatingImage
        { 
            get
            {
                return (_semanticBoxes.Count == 1 && (_semanticBoxes[0] is FixedSOMImage));
            } 
        }
 
        internal override FixedElement.ElementType[] ElementTypes 
        {
            get 
            {
                return new FixedElement.ElementType[1] { FixedElement.ElementType.Paragraph };
            }
        } 

        public bool IsWhiteSpace 
        { 
            get
            { 
                if (_semanticBoxes.Count == 0)
                {
                    return false;
                } 
                foreach (FixedSOMSemanticBox box in _semanticBoxes)
                { 
                    FixedSOMTextRun run = box as FixedSOMTextRun; 
                    if (run == null ||
                        !run.IsWhiteSpace) 
                    {
                        return false;
                    }
                } 
                return true;
            } 
        } 

        public override bool IsRTL 
        {
            get
            {
                return _RTLCount > _LTRCount; 
            }
        } 
 

        public Matrix Matrix 
        {
            get
            {
                return _matrix; 
            }
        } 
 

        #endregion Public Properties 

        #region Private Properties

        private FixedSOMTextRun LastTextRun 
        {
            get 
            { 
                FixedSOMTextRun run = null;
                for (int i=_semanticBoxes.Count - 1; i>=0 && run==null; i--) 
                {
                    run = _semanticBoxes[i] as FixedSOMTextRun;
                }
 
                return run;
            } 
        } 

        #endregion Private Properties 

        //-------------------------------------------------------------------
        //
        // Public Methods 
        //
        //--------------------------------------------------------------------- 
 
        #region Public Methods
#if DEBUG 
        public override void Render(DrawingContext dc, string label, DrawDebugVisual debugVisual)
        {
            Pen pen = new Pen(Brushes.Blue, 2);
            Rect rect = _boundingRect; 
            rect.Inflate(3,3);
            dc.DrawRectangle(null, pen , rect); 
 
            if (debugVisual == DrawDebugVisual.Paragraphs && label != null)
            { 
                base.RenderLabel(dc, label);
            }

            for (int i=0; i 1)
                    {
                         FixedSOMTextRun run = this.SemanticBoxes[this.SemanticBoxes.Count - 2] as FixedSOMTextRun; 
                         if (run != null &&
                             lastRun.BoundingRect.Height / run.BoundingRect.Height < 0.75 && 
                             run.BoundingRect.Left != lastRun.BoundingRect.Left && 
                             run.BoundingRect.Right != lastRun.BoundingRect.Right &&
                             run.BoundingRect.Top != lastRun.BoundingRect.Top && 
                             run.BoundingRect.Bottom != lastRun.BoundingRect.Bottom)
                         {
                            return run.BoundingRect.Height;
                         } 
                    }
                    return lastRun.BoundingRect.Height; 
 
                }
                else 
                {
                    return 0;
                }
            } 
        }
 
        //return true if this FixedBlock is a wrapper around a floating image 
        public bool IsFloatingImage
        { 
            get
            {
                return (_semanticBoxes.Count == 1 && (_semanticBoxes[0] is FixedSOMImage));
            } 
        }
 
        internal override FixedElement.ElementType[] ElementTypes 
        {
            get 
            {
                return new FixedElement.ElementType[1] { FixedElement.ElementType.Paragraph };
            }
        } 

        public bool IsWhiteSpace 
        { 
            get
            { 
                if (_semanticBoxes.Count == 0)
                {
                    return false;
                } 
                foreach (FixedSOMSemanticBox box in _semanticBoxes)
                { 
                    FixedSOMTextRun run = box as FixedSOMTextRun; 
                    if (run == null ||
                        !run.IsWhiteSpace) 
                    {
                        return false;
                    }
                } 
                return true;
            } 
        } 

        public override bool IsRTL 
        {
            get
            {
                return _RTLCount > _LTRCount; 
            }
        } 
 

        public Matrix Matrix 
        {
            get
            {
                return _matrix; 
            }
        } 
 

        #endregion Public Properties 

        #region Private Properties

        private FixedSOMTextRun LastTextRun 
        {
            get 
            { 
                FixedSOMTextRun run = null;
                for (int i=_semanticBoxes.Count - 1; i>=0 && run==null; i--) 
                {
                    run = _semanticBoxes[i] as FixedSOMTextRun;
                }
 
                return run;
            } 
        } 

        #endregion Private Properties 

        //-------------------------------------------------------------------
        //
        // Public Methods 
        //
        //--------------------------------------------------------------------- 
 
        #region Public Methods
#if DEBUG 
        public override void Render(DrawingContext dc, string label, DrawDebugVisual debugVisual)
        {
            Pen pen = new Pen(Brushes.Blue, 2);
            Rect rect = _boundingRect; 
            rect.Inflate(3,3);
            dc.DrawRectangle(null, pen , rect); 
 
            if (debugVisual == DrawDebugVisual.Paragraphs && label != null)
            { 
                base.RenderLabel(dc, label);
            }

            for (int i=0; i

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