using FastReport.Utils;
using System;

namespace FastReport.Engine
{
    public partial class ReportEngine
    {
        #region Properties

        /// <summary>
        /// Gets xml containing outline nodes.
        /// </summary>
        public XmlItem OutlineXml
        {
            get { return PreparedPages.Outline.Xml; }
        }

        #endregion Properties

        #region Private Methods

        private void AddOutline(string name, int pageNo, float curY)
        {
            PreparedPages.Outline.Add(name, pageNo, curY);
        }

        private void AddBandOutline(BandBase band)
        {
            if (band.Visible && !String.IsNullOrEmpty(band.OutlineExpression) && !band.Repeated)
            {
                AddOutline(Converter.ToString(Report.Calc(band.OutlineExpression)), CurPage, CurY);
                if (!(band is DataBand) && !(band is GroupHeaderBand))
                    OutlineUp();
            }
        }

        private void AddPageOutline()
        {
            if (!String.IsNullOrEmpty(page.OutlineExpression))
                AddOutline(Converter.ToString(Report.Calc(page.OutlineExpression)), CurPage, 0);
        }

        private void OutlineUp(BandBase band)
        {
            if (band is DataBand || band is GroupHeaderBand)
            {
                if (!String.IsNullOrEmpty(band.OutlineExpression))
                    OutlineUp();
            }
        }

        #endregion Private Methods

        #region Public Methods

        /// <summary>
        /// Creates a new outline element with specified text.
        /// </summary>
        /// <param name="text">Text of element.</param>
        /// <remarks>
        /// After you call this method, the element will be added to the current position in the outline.
        /// The next call to <b>AddOutline</b> will add new element as a child of this element.
        /// To shift the position, use the <see cref="OutlineRoot"/> or
        /// <see cref="OutlineUp()">OutlineUp</see> methods.
        /// </remarks>
        public void AddOutline(string text)
        {
            AddOutline(text, CurPage, CurY);
        }

        /// <summary>
        /// Sets the current outline position to root.
        /// </summary>
        public void OutlineRoot()
        {
            PreparedPages.Outline.LevelRoot();
        }

        /// <summary>
        /// Shifts the current outline position one level up.
        /// </summary>
        public void OutlineUp()
        {
            PreparedPages.Outline.LevelUp();
        }

        /// <summary>
        /// Creates a new bookmark with specified name at current position.
        /// </summary>
        /// <param name="name"></param>
        public void AddBookmark(string name)
        {
            if (!String.IsNullOrEmpty(name))
                PreparedPages.Bookmarks.Add(name, CurPage, CurY);
        }

        /// <summary>
        /// Gets a page number for the specified bookmark name.
        /// </summary>
        /// <param name="name">Name of bookmark.</param>
        /// <returns>Page number if bookmark with such name found; 0 otherwise.</returns>
        /// <remarks>
        /// Use this method to print the table of contents in your report. Normally it can be done
        /// using bookmarks.
        /// <note type="caution">
        /// You must set your report to double pass to use this method.
        /// </note>
        /// </remarks>
        public int GetBookmarkPage(string name)
        {
            return PreparedPages.Bookmarks.GetPageNo(name);
        }

        #endregion Public Methods
    }
}