/*******************************************************************************
 * Copyright(c) 2012 dongke All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：GridSettingManager.cs
 *      2.功能描述：提供DataGridView控件相关设定的保存和取得的管理
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      欧阳涛          2012/06/07          1.00            新建
 *******************************************************************************/

using System;
using System.Data;
using System.IO;
using System.Windows.Forms;

namespace Dongke.IBOSS.PRD.Basics.Library
{
    /// <summary>
    /// 提供DataGridView控件相关设定的保存和取得的管理
    /// </summary>
    public static class GridSettingManager
    {
        #region 常量定义
        private static DataTable _gridSetting = new DataTable();
        #endregion

        #region 属性
        /// <summary>
        /// 帐套代码
        /// </summary>
        public static string AccountCode
        {
            get;
            set;
        }

        /// <summary>
        /// 用户
        /// </summary>
        public static string UserCode
        {
            get;
            set;
        }
        #endregion

        #region 构造函数
        static GridSettingManager()
        {
            _gridSetting.TableName = "GridSetting";
            DataColumn[] gridColumns = new DataColumn[]
			{
				new DataColumn("ItemName", typeof(string)),
				new DataColumn("DispWidth", typeof(int)),
				new DataColumn("DispNo", typeof(int))
			};
            _gridSetting.Columns.AddRange(gridColumns);
        }
        #endregion

        #region 公开方法/属性
        /// <summary>
        /// 从文件中恢复DataGridView的设定
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="gridName"></param>
        /// <returns></returns>
        public static bool InitializeGridSetting(DataGridView grid, string gridName)
        {
            try
            {
                if (grid == null || string.IsNullOrEmpty(gridName))
                {
                    return false;
                }
                lock (_gridSetting)
                {
                    if (!GetGridSettingData(gridName))
                    {
                        return false;
                    }

                    if (_gridSetting == null
                        || _gridSetting.Rows.Count == 0
                        //|| _gridSetting.Rows.Count != grid.Columns.Count
                        )
                    {
                        return false;
                    }

                    string columnName = string.Empty;
                    //foreach (DataRow row in _gridSetting.Rows)
                    //{
                    //    columnName = (string)row["ItemName"];
                    //    if (string.IsNullOrEmpty(columnName))
                    //    {
                    //        return false;
                    //    }

                    //    if (!grid.Columns.Contains(columnName))
                    //    {
                    //        return false;
                    //    }
                    //}

                    int gridColumnDispNo = 0;
                    DataGridViewColumn gridColumn = null;
                    _gridSetting.DefaultView.Sort = "DispNo";
                    //_gridSetting = _gridSetting.DefaultView.ToTable();
                    //foreach (DataRow row in _gridSetting.Rows)
                    foreach (DataRowView row in _gridSetting.DefaultView)
                    {
                        columnName = (string)row["ItemName"];
                        if (string.IsNullOrEmpty(columnName) || !grid.Columns.Contains(columnName))
                        {
                            continue;
                        }
                        gridColumn = grid.Columns[columnName];
                        //gridColumnDispNo = (int)row["DispNo"];
                        if (gridColumn.DisplayIndex != gridColumnDispNo)
                        {
                            gridColumn.DisplayIndex = gridColumnDispNo;
                        }
                        gridColumn.Width = (int)row["DispWidth"];
                        gridColumnDispNo++;
                    }
                }
                return true;
            }
            catch (Exception ex)
            {
                OutputLog.Trace(LogPriority.Error, "GridSettingManager",
                    "InitializeGridSetting()", ex.ToString());
                return false;
                //throw ex;
            }
        }

        /// <summary>
        /// DataGridView设定文件保存
        /// </summary>
        /// <param name="grid"></param>
        /// <param name="gridName"></param>
        /// <returns></returns>
        public static bool SaveGridSetting(DataGridView grid, string gridName)
        {
            try
            {
                if (grid == null || string.IsNullOrEmpty(gridName))
                {
                    return false;
                }
                lock (_gridSetting)
                {
                    _gridSetting.Clear();
                    DataRow newRow = null;
                    foreach (DataGridViewColumn column in grid.Columns)
                    {
                        newRow = _gridSetting.NewRow();
                        newRow["ItemName"] = column.Name;
                        newRow["DispWidth"] = column.Width;
                        newRow["DispNo"] = column.DisplayIndex;
                        _gridSetting.Rows.Add(newRow);
                    }

                    if (!Directory.Exists(LocalPath.GridSettingRoot))
                    {
                        Directory.CreateDirectory(LocalPath.GridSettingRoot);
                    }
                    string gridSettingFileName = GetGridSettingFileName(gridName);
                    _gridSetting.WriteXml(gridSettingFileName, XmlWriteMode.WriteSchema);
                }
                return true;
            }
            catch (Exception ex)
            {
                OutputLog.Trace(LogPriority.Error, "GridSettingManager",
                    "SaveGridSetting()", ex.ToString());
                return false;
                //throw ex;
            }
        }
        #endregion

        #region 私有方法/函数
        /// <summary>
        /// 根据DataGridView名称取得设定的数据
        /// </summary>
        /// <param name="gridName">DataGridView名称</param>
        /// <returns>
        /// True：取得成功
        /// False：取得失败
        /// </returns>
        private static bool GetGridSettingData(string gridName)
        {
            try
            {
                string gridSettingFileName = GetGridSettingFileName(gridName);
                if (File.Exists(gridSettingFileName))
                {
                    _gridSetting.Clear();
                    _gridSetting.ReadXml(gridSettingFileName);
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        /// <summary>
        /// DataGridView设定保存的文件名的取得
        /// </summary>
        /// <param name="gridName">DataGridView名称</param>
        /// <returns>文件名</returns>
        private static string GetGridSettingFileName(string gridName)
        {
            string sha1GridName = Encryption.GetSHA1String(gridName);
            string sha1UserCode = Encryption.GetSHA1String(UserCode);
            return string.Format(LocalPath.GridSettingFileName,
                                sha1GridName,
                                sha1UserCode);
        }
        #endregion
    }
}