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359 lines
14 KiB
359 lines
14 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Documents;
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using System.Windows.Media;
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using System.Windows;
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using Utils.Datas;
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namespace Utils.Printers
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{
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public class DrawPage
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{
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public DrawPage()
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{
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_Headers = new List<Dictionary<string, string>>();
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_DetailRows = new List<Dictionary<string, string>>();
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}
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#region 变量、属性
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public double FontSize_InforsBeforeHead { get; set; }//表前信息的字号
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public IList<string> InforsBeforeHead { get; set; }//表前信息
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private double _PageWidth = 800;
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public double PageWidth { set { _PageWidth = value; } get { return _PageWidth; } }//页宽
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public string Title { get; set; }//标题
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private double _TitleFontSize = 20;
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public double TitleFontSize { set { _TitleFontSize = value; } get { return _TitleFontSize; } }//标题字号
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private double _TitleMarginLeft = 20;
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public double TitleMarginLeft { set { _TitleMarginLeft = value; } get { return _TitleMarginLeft; } }//标题左边距
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private double _MarginLeft = 20;
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public double MarginLeft { set { _MarginLeft = value; } get { return _MarginLeft; } }//左边距
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private double _MarginTop = 20;
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public double MarginTop { set { _MarginTop = value; } get { return _MarginTop; } }//顶边距
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private double _LineDistance = 4;
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public double LineDistance { set { _LineDistance = value; } get { return _LineDistance; } }//行距
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private double _FontSize = 16;
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public double FontSize { set { _FontSize = value; } get { return _FontSize; } }//字号
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private double _FontSize_Footer = 10;
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public double FontSize_Footer { set { _FontSize_Footer = value; } get { return _FontSize_Footer; } }//页脚字号
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private Typeface _TypeFace = new Typeface("SimSun");
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public Typeface TypeFace { set { _TypeFace = value; } get { return _TypeFace; } }
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private int _HeaderColumnsCount = 3;
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public int HeaderColumnsCount { set { _HeaderColumnsCount = value; } get { return _HeaderColumnsCount; } }//表头列数
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private int _HeaderCharCount = 4;
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public int HeaderCharCount { set { _HeaderCharCount = value; } get { return _HeaderCharCount; } }//表头字数
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private int _DetailMaxRows = 6;
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public int DetailMaxRows { set { _DetailMaxRows = value; } get { return _DetailMaxRows; } }//清单行数。超出则分页
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public IList<string> SumColumnNames { get; set; }//合计列的列名
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public bool AllowSum { get; set; }//是否合计
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public double FontSize_InforsBeforeFooter { get; set; }
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public double FontSize_InforsAfterFooter { get; set; }
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public IList<string> InforsBeforeFooter { get; set; }
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public IList<string> InforsAfterFooter { get; set; }
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private List<Dictionary<string, string>> _Headers;
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private string[] _ColumnNames;
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private double[] _ColumnWidths;
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private int _DefaultWidth_CharCount = 4;//默认列宽（字数）
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private List<Dictionary<string, string>> _DetailRows;
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public string Printer { get; set; }//打印人
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public bool ShowPrinter { get; set; }//是否打印打印人
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public bool ShowPrintTime { get; set; }//是否打印打印时间
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public bool ShowPageNum { get; set; }//是否打印页码
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#endregion
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/// <summary>
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/// 添加表头
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/// <para>可多次添加。每次添加新起一行；一次添加的信息，如果达到最大列数，自动换行</para>
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/// </summary>
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public void AddHeaders(Dictionary<string, string> headers)
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{
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Dictionary<string, string> tmp = new Dictionary<string, string>();
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foreach (var item in headers) {
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tmp.Add(item.Key + ":", item.Value);
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}
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_Headers.Add(tmp);
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}
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/// <summary>
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/// 添加清单列名
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/// </summary>
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public void AddColumnNames(params string[] columnNames)
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{
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_ColumnNames = columnNames;
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}
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/// <summary>
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/// 添加列宽。如果添加的列宽，没有列数多，则默认设置为_DefaultWidth_CharCount变量对应的字数的宽度。
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/// </summary>
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public void SetColumnWidths(params double[] columnWidths)
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{
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_ColumnWidths = columnWidths;
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}
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/// <summary>
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/// 添加一行数据。该方法使用前提：先添加列名（AddColumnNames方法）
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/// </summary>
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public void AddRow(params string[] values)//前提条件：先添加列名
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{
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#if DEBUG
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if (values == null || values.Count() == 0)
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throw new ApplicationException("AddRow(params string[] values)方法应该至少有一个参数");
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if (_ColumnNames == null || _ColumnNames.Count() == 0)
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throw new ApplicationException("请先调用AddColumnNames方法添加列名");
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#endif
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Dictionary<string, string> row = new Dictionary<string, string>();
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for (int i = 0; i < _ColumnNames.Length; i++) {
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if (values.Length > i)
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row.Add(_ColumnNames.ElementAt(i), values.ElementAt(i));
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}
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_DetailRows.Add(row);
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}
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/// <summary>
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/// 添加一行数据。
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/// </summary>
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public void AddRow(Dictionary<string, string> values)
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{
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#if DEBUG
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if (values == null || values.Count == 0)
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throw new ApplicationException("AddRow(Dictionary<string, string> values)方法添加的列至少应该有一列");
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#endif
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_DetailRows.Add(values);
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}
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/// <summary>
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/// 得到打印页面
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/// </summary>
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/// <param name="pageIndex">页的序号，从0开始</param>
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public DocumentPage GetPage(int pageIndex)
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{
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DrawingVisual visual = new DrawingVisual();
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using (DrawingContext dc = visual.RenderOpen()) {
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//打印表前信息
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double nextLineStartY = _MarginTop;
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if (InforsBeforeHead != null || InforsBeforeHead.Count > 0)
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nextLineStartY = DrawInfos(dc, FontSize_InforsBeforeHead, _MarginLeft, nextLineStartY, InforsBeforeHead.ToArray());
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//打印标题
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nextLineStartY = DrawTitle(dc, _TitleMarginLeft, nextLineStartY, Title, _TitleFontSize);
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//打印表头
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nextLineStartY = DrawHeaders(dc, nextLineStartY);
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//打印清单列名
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List<double> columnWidthsAll;
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var columnWidthStartXs = GetColumnWidthsStartX(MarginLeft, _ColumnWidths, _ColumnNames.Length, out columnWidthsAll);
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DrawDetail(nextLineStartY, dc, _ColumnNames, columnWidthStartXs, columnWidthsAll, out nextLineStartY);
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//打印清单
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if (_DetailRows != null && _DetailRows.Count > 0) {
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var rows = _DetailRows.Skip(pageIndex * DetailMaxRows);
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for (int i = 0; i < rows.Count(); i++) {
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if (i >= DetailMaxRows)
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break;
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var datas = PrepareRow(rows.ElementAt(i), _ColumnNames);
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DrawDetail(nextLineStartY, dc, datas, columnWidthStartXs, columnWidthsAll, out nextLineStartY);
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}
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}
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//打印合计
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DrawSumRow(nextLineStartY, dc, columnWidthStartXs, columnWidthsAll, out nextLineStartY);
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//打印页脚前信息
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if (InforsBeforeFooter != null || InforsBeforeFooter.Count > 0)
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nextLineStartY = DrawInfos(dc, FontSize_InforsBeforeFooter, _MarginLeft, nextLineStartY, InforsBeforeFooter.ToArray());
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//打印页脚
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nextLineStartY = DrawFooter(dc, nextLineStartY, pageIndex);
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//打印页脚后信息
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if (InforsAfterFooter != null || InforsAfterFooter.Count > 0)
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nextLineStartY = DrawInfos(dc, FontSize_InforsAfterFooter, _MarginLeft, nextLineStartY, InforsAfterFooter.ToArray());
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}
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return new DocumentPage(visual);
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}
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private double DrawTitle(DrawingContext dc, double startX, double startY, string Title, double titleFontSize)
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{
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double nextLineStartY;
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Point point = new Point(startX, startY);
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PrinterUtil.DrawText(point, dc, Title, titleFontSize, LineDistance, TypeFace, out nextLineStartY);
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return nextLineStartY;
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}
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private double DrawHeaders(DrawingContext dc, double startY)
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{
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double next = startY;
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foreach (var item in _Headers) {
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next = DrawPairsInfo(dc, item, FontSize, HeaderCharCount, HeaderColumnsCount, next);
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}
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return next;
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}
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private static List<double> GetAverageWidthsStartX(double width, double marginLeft, int columnsCount)
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{//将宽度平均分成columnsCount份，返回每一份的起点
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#if DEBUG
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if (columnsCount == 0)
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throw new ApplicationException("columnsCount参数不允许为0");
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#endif
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List<double> startXs = new List<double>();
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var start = marginLeft;
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startXs.Add(start);
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double averageLength = (width - marginLeft) / columnsCount;
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for (int i = 0; i < columnsCount - 1; i++) {
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start += averageLength;
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startXs.Add(start);
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}
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return startXs;
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}
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private List<double> GetColumnWidthsStartX(double marginLeft, double[] columnWidths, int columnCount, out List<double> columnWidthsAll)
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{
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columnWidthsAll = new List<double>();
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List<double> widthsStartX = new List<double>();
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widthsStartX.Add(marginLeft);
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foreach (var c in columnWidths) {
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marginLeft += c;
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widthsStartX.Add(marginLeft);
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columnWidthsAll.Add(c);
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}
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if (columnWidths.Length < columnCount) {
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var width = PrinterUtil.GetWidth(_DefaultWidth_CharCount, FontSize, TypeFace);
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for (int i = 0; i < columnCount - columnWidths.Length; i++) {
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marginLeft += width;
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widthsStartX.Add(marginLeft);
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columnWidthsAll.Add(width);
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}
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}
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return widthsStartX;
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}
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private void DrawDetail(double startY, DrawingContext dc, IList<string> values, List<double> columnWidthStartXs, List<double> columnWidthsAll, out double nextLineStartY)//前提条件：将values设置为与_ColumnNames对应起来
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{
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nextLineStartY = startY;
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Point point = new Point(0, startY);
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for (int i = 0; i < values.Count; i++) {
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point.X = columnWidthStartXs.ElementAt(i);
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PrinterUtil.DrawTextWithRectangle(point, dc, values[i], FontSize, TypeFace, columnWidthsAll[i], 0.5, 5, LineDistance, out nextLineStartY);
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}
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}
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private void DrawSumDetail(double startY, DrawingContext dc, IList<string> values, List<double> columnWidthStartXs, List<double> columnWidthsAll, out double nextLineStartY)
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{
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nextLineStartY = startY;
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Point point = new Point(0, startY);
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bool isBlack = false;
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for (int i = 0; i < values.Count; i++) {
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if (i == 0 && string.IsNullOrEmpty(values[i]))
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isBlack = true;
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if (isBlack && string.IsNullOrEmpty(values[i]))
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continue;
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if (isBlack) {
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isBlack = false;
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double width = 0;
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for (int j = 0; j < i; j++) {
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width += columnWidthsAll[j];
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}
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double sumTextMagin = width + 5 - columnWidthsAll[i - 1];
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point.X = columnWidthStartXs.ElementAt(0);
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PrinterUtil.DrawTextWithRectangle(point, dc, "合计", FontSize, TypeFace, width, 0.5, sumTextMagin, LineDistance, out nextLineStartY);
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}
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point.X = columnWidthStartXs.ElementAt(i);
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PrinterUtil.DrawTextWithRectangle(point, dc, values[i], FontSize, TypeFace, columnWidthsAll[i], 0.5, 5, LineDistance, out nextLineStartY);
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}
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}
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private void DrawSumRow(double startY, DrawingContext dc, List<double> columnWidthStartXs, List<double> columnWidthsAll, out double nextLineStartY)
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{
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if (!AllowSum) {
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nextLineStartY = startY;
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return;
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}
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List<string> values = new List<string>();
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foreach (var name in _ColumnNames) {
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if (SumColumnNames.Contains(name)) {
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values.Add(GetSumValue(_DetailRows, name));
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} else
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values.Add(string.Empty);
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}
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DrawSumDetail(startY, dc, values, columnWidthStartXs, columnWidthsAll, out nextLineStartY);
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}
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private string GetSumValue(List<Dictionary<string, string>> detailRows, string name)
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{
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decimal sum = 0;
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foreach (var row in detailRows) {
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if (!row.Keys.Contains(name))
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return string.Empty;
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if (string.IsNullOrEmpty(row[name]))
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continue;
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decimal value;
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if (decimal.TryParse(row[name], out value))
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sum += value;
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else
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throw new ApplicationException("计算合计数据出错");
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}
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//return sum.ToString("F2");
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return NumToStringUtil.GetPointAtMost(sum);
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}
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private List<string> PrepareRow(Dictionary<string, string> row, string[] columnNames)
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{
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List<string> result = new List<string>();
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foreach (var item in columnNames) {
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if (row.Keys.Contains(item))
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result.Add(row[item]);
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else
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result.Add(string.Empty);
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}
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return result;
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}
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/// <summary>
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/// 绘制键值对信息
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/// </summary>
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/// <param name="infos">键值对信息</param>
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/// <param name="charCount_Key">键的个数</param>
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/// <param name="columnsCount">一行上，显示的键值对的个数</param>
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/// <param name="startY">起点Y坐标</param>
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/// <returns>下一行的Y坐标</returns>
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private double DrawPairsInfo(DrawingContext dc, Dictionary<string, string> infos, double fontSize, int charCount_Key, int columnsCount, double startY)//返回下一行的Y坐标
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{
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double nextLineStartY = startY;
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var charLength_Key = PrinterUtil.GetWidth(charCount_Key, fontSize, TypeFace);
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var averageWidths_StartX = GetAverageWidthsStartX(PageWidth, MarginLeft, columnsCount);
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Point point = new Point(averageWidths_StartX[0], nextLineStartY);
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for (int i = 0; i < infos.Count; i++) {
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var columnIndex = i % columnsCount;
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point.X = averageWidths_StartX[columnIndex];
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if (columnIndex == 0 && i != 0) {
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point.Y = nextLineStartY;
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}
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PrinterUtil.DrawText(point, dc, infos.ElementAt(i).Key, fontSize, LineDistance, TypeFace);
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PrinterUtil.DrawText(new Point(point.X + charLength_Key, point.Y), dc, infos.ElementAt(i).Value, fontSize, LineDistance, TypeFace, out nextLineStartY);
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}
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return nextLineStartY;
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}
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private double DrawInfos(DrawingContext dc, double fontSize, double startX, double startY, params string[] infos)
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{
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if (infos == null || infos.Length == 0)
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return startY;
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double next = startY;
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Point point = new Point(startX, next);
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foreach (var item in infos) {
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PrinterUtil.DrawText(point, dc, item, fontSize, LineDistance, TypeFace, out next);
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point.Y = next;
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}
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return next;
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}
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private double DrawFooter(DrawingContext dc, double startY, int pageIndex)
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{
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if (!ShowPrinter && !ShowPrintTime && !ShowPageNum)
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return startY;
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Dictionary<string, string> pairs = new Dictionary<string, string>();
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int charCount_Key = 5;
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int columnCount = 3;
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if (ShowPrinter)
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pairs.Add("打印人:", string.IsNullOrEmpty(Printer) ? string.Empty : Printer);
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if (ShowPrintTime)
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pairs.Add("打印时间:", DateTime.Now.ToString());
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if (ShowPageNum)
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pairs.Add("第" + (pageIndex + 1) + "页", "共" + PageNumUtil.GetTotalPageCount(_DetailRows.Count, _DetailMaxRows) + "页");
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return DrawPairsInfo(dc, pairs, FontSize_Footer, charCount_Key, columnCount, startY);
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}
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}
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}
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