Source/TextMarkup/MarkupElement.cs

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using System;
using System.Drawing;
using System.Text;
using System.Xml;

#if AdvTree
namespace DevComponents.Tree.TextMarkup
#elif DOTNETBAR
using DevComponents.UI.ContentManager;
namespace DevComponents.DotNetBar.TextMarkup
#endif
{
    internal abstract class MarkupElement : IBlockExtended
    {
        #region Private Variables
        private MarkupElementCollection m_Elements = null;
        private MarkupElement m_Parent = null;
        private Rectangle m_Bounds = Rectangle.Empty;
        private bool m_Visible = true;
        private bool m_SizeValid = false;
        private Rectangle m_RenderBounds = Rectangle.Empty;
        #endregion

        #region Internal Implementation
        public MarkupElement()
        {
            m_Elements = new MarkupElementCollection(this);
        }

        /// <summary>
        /// Returns whether markup element is an block element that always consumes a whole line in layout.
        /// </summary>
        public virtual bool IsBlockElement
        {
            get { return false; }
        }

        /// <summary>
        /// Returns whether layout manager switches to new line after processing this element.
        /// </summary>
        public virtual bool IsNewLineAfterElement
        {
            get { return false; }
        }

        /// <summary>
        /// Returns whether layout manager can start new line with this element.
        /// </summary>
        public virtual bool CanStartNewLine
        {
            get { return true; }
        }

        /// <summary>
        /// Gets the collection of child elements if any for this markup element.
        /// </summary>
        public virtual MarkupElementCollection Elements
        {
            get
            {