using System.Collections.Generic;
using System.Linq;
using System.Windows.Documents;
using System.Windows;
using System.Data;
using System.Windows.Media;
using Utils.Datas;

namespace Utils.Printers
{
	public class BillDataPaginator : DocumentPaginator
	{
		#region  属性及字段
		private DataTable _DataTable;
		private Size _PageSize;
		private int _DetailMaxRows;

		public override Size PageSize { get { return _PageSize; } set { _PageSize = value; } }
		public override bool IsPageCountValid { get { return true; } }
		public override int PageCount { get { return PageNumUtil.GetTotalPageCount(_DataTable.Rows.Count, _DetailMaxRows); } }
		public override IDocumentPaginatorSource Source { get { return null; } }

		private DrawPage dp;
		#endregion

		#region  构造函数相关方法
		//构造函数
		public BillDataPaginator(DataTable dt, Size pagesize, Typeface typeface, PrintInfo printInfo)
		{
			_DataTable = dt;
			_PageSize = pagesize;
			_DetailMaxRows = printInfo.清单每页最大行数;

			dp = new DrawPage() {
				InforsBeforeHead = printInfo.表前信息,
				FontSize_InforsBeforeHead = printInfo.表前信息字号,
				Title = printInfo.标题 + "№" + printInfo.单号,
				TitleFontSize = printInfo.标题字号,
				TitleMarginLeft = printInfo.标题左边距,
				PageWidth = printInfo.表头页宽,
				FontSize = printInfo.正文字号,
				FontSize_Footer = printInfo.页脚字号,
				MarginLeft = printInfo.正文左边距,
				MarginTop = printInfo.顶边距,
				DetailMaxRows = _DetailMaxRows,
				HeaderCharCount = printInfo.表头标签文字最大个数,
				HeaderColumnsCount = printInfo.表头列数,
				LineDistance = printInfo.行距,
				TypeFace = typeface,
				ShowPageNum = printInfo.是否打印页码,
				ShowPrinter = printInfo.是否打印打印人,
				ShowPrintTime = printInfo.是否打印打印时间,
				Printer = printInfo.打印人,
				AllowSum = printInfo.是否允许合计,
				SumColumnNames = printInfo.合计列的列名,
				InforsBeforeFooter = printInfo.页脚前信息,
				InforsAfterFooter = printInfo.页脚后信息,
				FontSize_InforsBeforeFooter = printInfo.页脚前信息字号,
				FontSize_InforsAfterFooter = printInfo.页脚后信息字号,
			};

			if (printInfo.表头信息 != null && printInfo.表头信息.Count > 0)
				foreach (var heads in printInfo.表头信息)
					dp.AddHeaders(heads);
			List<string> columnNames = new List<string>();
			foreach (DataColumn column in dt.Columns) {
				columnNames.Add(column.Caption);
			}
			dp.AddColumnNames(columnNames.ToArray());
			foreach (DataRow row in dt.Rows) {
				List<string> datas = new List<string>();
				for (int i = 0; i < dt.Columns.Count; i++) {
					datas.Add(row[i].ToString());
				}
				dp.AddRow(datas.ToArray());
			}
			dp.SetColumnWidths(printInfo.清单每列列宽.ToArray());
		}

		/// <summary>
		/// 获取对应页面数据并进行相应的打印设置
		/// </summary>
		public override DocumentPage GetPage(int pageNumber)//pageNumber:从0开始
		{
			return dp.GetPage(pageNumber);
		}
		#endregion
	}
}