377 lines
16 KiB
C#
377 lines
16 KiB
C#
using ryPrint;
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using ryPrint.Mod;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Drawing.Printing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace RyPrint
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{
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/// <summary>
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/// 如果涉及到分页打印,切勿在PrintPage事件中多次实例化
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/// </summary>
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public class SmartPrint
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{
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private Hashtable dt_list = new Hashtable();
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/// <summary>
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/// 设置获取加载的模板
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/// </summary>
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public string Mod_Xml { get; set; } = "";
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private PrintDocument _Print_Doc = null;
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public SmartPrint(string mod_xml,PrintDocument Print_Doc)
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{
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Mod_Xml = mod_xml;
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Print_Doc.BeginPrint += Print_Doc_BeginPrint;
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Print_Doc.PrintPage += Print_Doc_PrintPage;
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_Print_Doc = Print_Doc;
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}
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public SmartPrint(PrintDocument Print_Doc)
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{
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Print_Doc.BeginPrint += Print_Doc_BeginPrint;
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Print_Doc.PrintPage += Print_Doc_PrintPage;
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_Print_Doc = Print_Doc;
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}
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public SmartPrint()
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{
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}
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/// <summary>
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/// 显示打印预览窗口
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/// </summary>
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public void ShowPreviewForm()
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{
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if (!_Print_Doc.PrinterSettings.IsValid)
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{ MessageBox.Show("当前打印机无效。请确认是否已安装打印机。","提示",MessageBoxButtons.OK,MessageBoxIcon.Information); return; }
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IsPreview = true;
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frmPrintPreview frm = new frmPrintPreview();
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frm._SmartPrint = this;
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frm.PrintDoc = _Print_Doc;
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frm.ShowDialog();
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}
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private void Print_Doc_PrintPage(object sender, PrintPageEventArgs e)
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{
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Print(Mod_Xml, e, IsPreview);
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}
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private void Print_Doc_BeginPrint(object sender, PrintEventArgs e)
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{
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StartPrint();
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}
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/// <summary>
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/// 左边距
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/// </summary>
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public int MarginLeft { get; set; } = 0;
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/// <summary>
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/// 顶部边距
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/// </summary>
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public int MarginTop { get; set; } = 0;
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/// <summary>
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/// 单位是否是英寸,如果false，则是毫米,默认false。
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/// </summary>
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public bool IsInch { get; set; } = false;
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/// <summary>
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/// 是否是预览
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/// </summary>
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public bool IsPreview { get; set; } = false;
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public string FontName { get; set; } = "黑体";
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private int _curPageIndex = 0;
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/// <summary>
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/// 获取或设置当前打印的是第几页,从0开始计数
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/// </summary>
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public int curPageIndex
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{
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get { return _curPageIndex; }
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set
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{
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if (value < 0) { _curPageIndex=0; }
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else { _curPageIndex= value; }
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}
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}
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private int _MaxPage = -1;
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/// <summary>
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/// 获取或设置当前最多打印到第几页,从0开始计数,-1表示打印到结束
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/// </summary>
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public int MaxPage
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{
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get { return _MaxPage; }
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set
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{
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if (value < 0) { _MaxPage = -1; }
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else { _MaxPage = value; }
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}
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}
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/// <summary>
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/// 设置纸张名称
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/// </summary>
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public string PaperName { get; set; } = "打印内容";
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/// <summary>
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/// 是否横向打印
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/// </summary>
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public bool Landscape { get; set; } = true;
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/// <summary>
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/// 是否打印多页,如果设为true,有多页文本,则打印多页,没有则打印一页。
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/// </summary>
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public bool PrintMorePages { get; set; } = true;
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public delegate void DataSetHandler(string DataSource,out DataTable ds);
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[Description("获取数据表时激发")]
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public event DataSetHandler OnDataSet;
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public void StartPrint()
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{
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//curPageIndex = 0;
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dt_list.Clear();
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ryCommon.Storage tStor_set = new ryCommon.Storage(Mod_Xml);
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tStor_set.SelectNode2("id", "set");
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double mmWidth = tStor_set.GetAttrValue("Width", 0d);
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double mmHeight = tStor_set.GetAttrValue("Height", 0d);
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PaperSize sPSize = new PaperSize(PaperName, (int)RySet.MMToInches(mmHeight * 100), (int)RySet.MMToInches(mmWidth * 100));//267为英寸转厘米为8厘米 //PaperSize sPSize = new PaperSize("快递单", (int)pixelsToInches(image.Width * 100), (int)pixelsToInches(image.Height * 100));
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if (!Landscape)
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{
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sPSize = new PaperSize(PaperName, (int)RySet.MMToInches(mmWidth * 100), (int)RySet.MMToInches(mmHeight * 100));//267为英寸转厘米为8厘米
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}
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_Print_Doc.DefaultPageSettings.PaperSize = sPSize;
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}
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public void Print()
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{
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curPageIndex = 0;
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MaxPage = -1;
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IsPreview = false;
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_Print_Doc.PrinterSettings.FromPage = 0;
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_Print_Doc.Print();
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}
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/// <summary>
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/// 打印
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/// </summary>
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/// <param name="mod_xml">打印模板</param>
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/// <param name="e">打印参数</param>
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/// <param name="isPreview">是否是预览</param>
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public void Print(string mod_xml, PrintPageEventArgs e,bool isPreview)
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{
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try
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{
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e.Graphics.PageUnit = IsInch ? GraphicsUnit.Inch : GraphicsUnit.Millimeter;
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#region 根据模板打印
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ryCommon.Storage tStor_set = new ryCommon.Storage(mod_xml);
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tStor_set.SelectNode2("id", "set");
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double mmWidth = tStor_set.GetAttrValue("Width", 0d);
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double mmHeight = tStor_set.GetAttrValue("Height", 0d);
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if (IsInch)
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{
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mmWidth = RySet.MMToInches(mmWidth);
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mmHeight = RySet.MMToInches(mmHeight);
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}
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string picPath = RySet.GetTruePath(tStor_set.GetAttrValue("PreviewPicPath", ""));
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tStor_set.SelectNode2("id", "print_xml");
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ryCommon.Storage tStor = new ryCommon.Storage(tStor_set.GetAttrValue("Value"));
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System.Xml.XmlNodeList list = tStor.GetList();
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if (System.IO.File.Exists(picPath))
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{
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Image image = Image.FromFile(picPath);
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if (isPreview)
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{
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Bitmap pic = (Bitmap)image;
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//pic.SetResolution(dpiValue, dpiValue);
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e.Graphics.DrawImage(pic, 0, 0, (float)mmWidth, (float)mmHeight);
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}
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}
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for (int i = 0; i < list.Count; i++)
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{
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tStor.SelectNode3(list[i]);
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Font _Font = new Font(FontName, tStor.GetAttrValueByInt("FontSize", 10), FontStyle.Regular);
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bool Multiline = tStor.GetAttrValueByBool("Multiline", false);
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SizeF size = new SizeF((float)(tStor.GetAttrValue("Width", 100f)), (float)(tStor.GetAttrValue("Height", 21f)));
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PointF location = new PointF((float)(tStor.GetAttrValue("Left", 0f) + MarginLeft), (float)(tStor.GetAttrValue("Top", 0f) + MarginTop));
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if (IsInch)
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{
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size = new SizeF(RySet.MMToInches(size.Width), RySet.MMToInches(size.Height));
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location = new PointF(RySet.MMToInches(location.X), RySet.MMToInches(location.Y));
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}
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string title = tStor.GetAttrValue("Title");
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ClsProperty.En_Type _type = ClsProperty.En_Type.自定义;
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try
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{
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_type = (ClsProperty.En_Type)tStor.GetAttrValueByInt("sType", 0);
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}
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catch { }
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List<string> value_list = new List<string>();
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#region 转换值
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switch (_type)
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{
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case ClsProperty.En_Type.自定义:
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string format = tStor.GetAttrValue("format");
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if (format == "")
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{
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if (tStor.GetAttrValue("value") == "")
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{ value_list.Add(title); }
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else
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{
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value_list.Add(tStor.GetAttrValue("value"));
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}
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}
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else
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{
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value_list.Add(DateTime.Now.ToString(format));
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}
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break;
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case ClsProperty.En_Type.数据字段:
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string datasource = tStor.GetAttrValue("DataSource");
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if (datasource != "")
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{
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DataTable dt = new DataTable();
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HashItem item = new HashItem();
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if (!dt_list.ContainsKey(datasource))
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{
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OnDataSet?.Invoke(datasource, out dt);
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item.dt = dt;
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dt_list.Add(datasource, item);
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}
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else
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{
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item = (HashItem)dt_list[datasource];
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if (item.dt!= null)
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dt = item.dt;
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}
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if (!dt.Columns.Contains(tStor.GetAttrValue("value"))) { item.ReadEnd = true; continue; }
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int PageCount = tStor.GetAttrValue("PageCount", 0);
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int startRow = curPageIndex* PageCount;
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int endRow = dt.Rows.Count;
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if(PageCount>0)
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{
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if((curPageIndex+1) * PageCount>= dt.Rows.Count)
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{
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endRow = dt.Rows.Count;
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item.ReadEnd = true;
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}
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else
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{
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endRow = (curPageIndex + 1) *PageCount;
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}
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}
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else
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{
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item.ReadEnd = true;
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}
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dt_list[datasource] = item;
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for (int m = startRow; m < endRow; m++)
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{
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value_list.Add(dt.Rows[m][tStor.GetAttrValue("value")].ToString());
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}
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}
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break;
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}
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#endregion
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float total_top = location.Y;
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#region 打印内容
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for (int k = 0; k < value_list.Count; k++)
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{
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location.Y = total_top;
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string value = value_list[k];
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float rowHeight = e.Graphics.MeasureString(value + "有", _Font).Height;
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if (value != "")
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{
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StringFormat sf = new StringFormat();
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Brush fontBrush = Brushes.Black;
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if (tStor.GetAttrValue("NoPrint", false))
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{
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if (isPreview)
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{
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fontBrush = Brushes.Blue;
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}
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else
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{ continue; }
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}
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if (Multiline)
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{
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//sf.Alignment = StringAlignment.Center;
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//sf.LineAlignment = StringAlignment.Center;
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RectangleF rect = new RectangleF(location, size);
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rowHeight = rect.Height;
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e.Graphics.DrawString(value, _Font, fontBrush, rect, sf);
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}
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else
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{
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#region 单行打印
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switch (tStor.GetAttrValue("align"))
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{
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case "Left":
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sf.Alignment = StringAlignment.Near;
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break;
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case "Right":
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sf.Alignment = StringAlignment.Far;
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break;
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case "Center":
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sf.Alignment = StringAlignment.Center;
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break;
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}
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//sf.LineAlignment = sf.Alignment;
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if (sf.Alignment == StringAlignment.Center)
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{
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SizeF _size = e.Graphics.MeasureString(value, _Font);
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if (size.Width < _size.Width) { size.Width = _size.Width; }
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size.Height = _size.Height;
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RectangleF rect = new RectangleF(location, size);
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sf.LineAlignment = sf.Alignment;
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e.Graphics.DrawString(value, _Font, fontBrush, rect, sf);
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}
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else
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{
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e.Graphics.DrawString(value, _Font, fontBrush, location, sf);
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}
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#endregion
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}
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}
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if (IsInch)
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{ total_top += rowHeight + RySet.MMToInches(tStor.GetAttrValue("LineSpace", 0)); }
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else
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{
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total_top += rowHeight + tStor.GetAttrValue("LineSpace", 0);
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}
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}
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#endregion
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}
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#endregion
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}
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catch { }
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#region 判断记录是否已经打印完
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bool PageEnd = true;
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foreach (DictionaryEntry de in dt_list)
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{
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HashItem _item = (HashItem)de.Value;
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if (!_item.ReadEnd)
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{
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PageEnd = false;
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break;
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}
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}
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if (PageEnd) { e.HasMorePages = false; }///如果已经是尾页,则不继续打印
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else
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{
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if(MaxPage>0)
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{
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if(curPageIndex>= MaxPage)
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{
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e.HasMorePages = false;
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return;
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}
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}
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e.HasMorePages = true;
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curPageIndex++;
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}
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#endregion
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}
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}
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class HashItem
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{
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public DataTable dt=new DataTable();
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public bool ReadEnd = false;
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}
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}
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