Bookmarks.cs

using System;
using System.Collections.Generic;
using System.Text;
using FastReport.Utils;
using System.Collections;

namespace FastReport.Preview
{
    internal class Bookmarks
    {
        private List<BookmarkItem> items;
        private List<BookmarkItem> firstPassItems;

        internal int CurPosition
        {
            get { return items.Count; }
        }

        internal void Shift(int index, float newY)
        {
            if (index < 0 || index >= items.Count)
                return;

            float topY = items[index].offsetY;
            float shift = newY - topY;

            for (int i = index; i < items.Count; i++)
            {
                items[i].pageNo++;
                items[i].offsetY += shift;
            }
        }

        public void Add(string name, int pageNo, float offsetY)
        {
            BookmarkItem item = new BookmarkItem();
            item.name = name;
            item.pageNo = pageNo;
            item.offsetY = offsetY;

            items.Add(item);
        }

        public int GetPageNo(string name)
        {
            BookmarkItem item = Find(name);
            if (item == null)
                item = Find(name, firstPassItems);
            return item == null ? 0 : item.pageNo + 1;
        }

        public BookmarkItem Find(string name)
        {
            return Find(name, items);
        }

        private BookmarkItem Find(string name, List<BookmarkItem> items)
        {
            if (items == null)
                return null;

            foreach (BookmarkItem item in items)
            {
                if (item.name == name)
                    return item;
            }

            return null;
        }

        public void Clear()
        {
            items.Clear();
        }

        public void ClearFirstPass()
        {
            firstPassItems = items;
            items = new List<BookmarkItem>();
        }

        public void Save(XmlItem rootItem)
        {
            rootItem.Clear();
            foreach (BookmarkItem item in items)
            {
                XmlItem xi = rootItem.Add();
                xi.Name = "item";
                xi.SetProp("Name", item.name);
                xi.SetProp("Page", item.pageNo.ToString());
                xi.SetProp("Offset", Converter.ToString(item.offsetY));
            }
        }

        public void Load(XmlItem rootItem)
        {
            Clear();
            for (int i = 0; i < rootItem.Count; i++)
            {
                XmlItem item = rootItem[i];
                Add(item.GetProp("Name"), int.Parse(item.GetProp("Page")),
                  (float)Converter.FromString(typeof(float), item.GetProp("Offset")));
            }
        }

        public Bookmarks()
        {
            items = new List<BookmarkItem>();
        }


        internal class BookmarkItem
        {
            public string name;
            public int pageNo;
            public float offsetY;
        }
    }
}