cyf
529 lines
20 KiB
C#
529 lines
20 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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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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using CommonLib;
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using iTextSharp.text.pdf;
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using System.IO;
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using System.Drawing.Imaging;
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using System.Runtime.Serialization.Formatters.Binary;
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namespace Lskj.MyControl
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{
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/// <summary>
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/// Class PdfSignEx.
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/// </summary>
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public partial class PdfSignEx : UserControl
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{
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public PdfSignEx()
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{
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InitializeComponent();
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}
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#region 公开变量
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/// <summary>
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/// 当前保存签名的ID
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/// </summary>
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public int CurrentId;
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/// <summary>
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/// 源文件
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/// </summary>
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public string TempletFilePath = string.Empty;
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/// <summary>
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/// 签名图片
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/// </summary>
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public Image SignImage;
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/// <summary>
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/// 当前操作的位置
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/// </summary>
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public PointF SignPoint;
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/// <summary>
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/// 签名载体
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/// </summary>
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/// <value>The pic box.</value>
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public PictureBox PicBox { get { return this.pictureBox; } }
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/// <summary>
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/// 当前页
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/// </summary>
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public int CurrentPageNo;
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/// <summary>
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/// 保存回调
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/// </summary>
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public event EventHandler OnSaveCallBack;
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/// <summary>
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/// 删除回调
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/// </summary>
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public event EventHandler OnDeleteCallBack;
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/// <summary>
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/// 另存为回调
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/// </summary>
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public event EventHandler OnSaveAsCallBack;
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/// <summary>
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/// 打开回调
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/// </summary>
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public event EventHandler OnOpenFileCallBack;
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#endregion
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#region 私有变量
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/// <summary>
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/// 当前操作文件
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/// </summary>
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private string _currentPdf;
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/// <summary>
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/// pdf文件合成存放目录
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/// </summary>
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private string _fileDic = string.Empty;
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/// <summary>
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/// 上一次编辑的文件地址，保存失误后可以返回
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/// </summary>
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private string _pdfHistory;
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/// <summary>
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/// 后台合成的PDf
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/// </summary>
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private string _pdfNew;
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/// <summary>
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/// 签名预制体集
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/// </summary>
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private List<SignBox> _signBoxList;
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#endregion
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/// <summary>
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/// <para>说明：</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-06-08 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public void ClosePDFViewer()
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{
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this.pdfDocument.Close();
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}
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/// <summary>
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/// <para>说明：删除</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public void Delete()
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{
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this.pictureBox.Visible = false;
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_signBoxList = _signBoxList.Where(o => o.PageNumber != this.pdfPageView.PageNumber).ToList();
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}
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/// <summary>
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/// <para>说明：初始化pdf控件</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-29 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public void InitPdfEditor()
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{
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_signBoxList = new List<SignBox>();
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this.pdfPageView.MouseWheel += new MouseEventHandler(OnMouseWheelClick);
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_fileDic = PubUtil.AbsolutelyPath + "PdfForder//";
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if (!Directory.Exists(_fileDic))
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{
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Directory.CreateDirectory(_fileDic);
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}
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DirectoryInfo dir = new DirectoryInfo(_fileDic);
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//初始化时清除掉文件
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foreach (FileInfo f in dir.GetFiles("*.pdf"))
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{
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f.Delete();
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}
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}
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/// <summary>
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/// <para>说明：初始在源文件上描点</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public void InitPdfPage(DataTable dt)
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{
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this.CurrentId = 0;
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if (dt == null || dt.Rows.Count == 0)
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{
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this._pdfHistory = this._currentPdf = this.TempletFilePath;
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if (string.IsNullOrEmpty(this.TempletFilePath))
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{
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MessageBox.Show("不存在源文件");
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}
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}
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else
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{
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this._pdfHistory = this._currentPdf = _fileDic + Guid.NewGuid() + ".pdf";
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using (Stream outputPdfStream = new FileStream(this._currentPdf, FileMode.Create, FileAccess.Write, FileShare.None))
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{
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PdfReader reader = new PdfReader(this.TempletFilePath);
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PdfStamper stamper = new PdfStamper(reader, outputPdfStream);
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foreach (DataRow row in dt.Rows)
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{
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Image pic = Image.FromStream(new MemoryStream((byte[])row["Image"]), true);
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//ms.Close();
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iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(pic, pic.RawFormat);
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// 由于不清楚表结构暂时没定义模型
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PointF point = new PointF(float.Parse(row["ImageX"] + ""), float.Parse(row["ImageY"] + ""));
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AddImageToPdf(image, Convert.ToInt32(row["Page"] + ""), point, stamper);
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}
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stamper.Close();
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reader.Close();
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}
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}
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this.pdfDocument.Load(this._currentPdf);
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this.pdfPageView.PageNumber = this.CurrentPageNo;
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}
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/// <summary>
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/// <para>说明：保存</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public void Save()
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{
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if (this._pdfNew == null) return;
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//签名容器状态代表是否可进行保存
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this._currentPdf = this._pdfNew;
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this._signBoxList.Clear();
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this.pictureBox.Visible = false;
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this.pdfDocument.Load(this._currentPdf);
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//加载到保存前的页码位置
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this.pdfPageView.PageNumber = this.CurrentPageNo;
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}
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/// <summary>
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/// <para>说明：另存为</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public bool SaveAs()
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{
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this.Save();
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string fileName = string.Empty;
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bool saveState = false;
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using (SaveFileDialog saveFileDialog = new SaveFileDialog())
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{
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saveFileDialog.Title = "另存为";
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saveFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
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saveFileDialog.Filter = "pdf(*.pdf)|*.pdf";
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saveFileDialog.AddExtension = true;
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if (saveFileDialog.ShowDialog() == DialogResult.OK)
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{
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fileName = saveFileDialog.FileName;
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this.pdfDocument.Save(fileName);
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saveState = true;
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}
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else
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{
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//另存操作失误,取消另存时候,加载到保存前状态
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this._currentPdf = this._pdfHistory;
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this.pdfDocument.Load(this._currentPdf);
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this.pdfPageView.PageNumber = this.CurrentPageNo;
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}
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return saveState;
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}
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}
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/// <summary>
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/// <para>说明：添加图片到Pdf</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="imagePath">图片地址</param>
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/// <param name="pageNo">页码</param>
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/// <param name="point">坐标点</param>
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/// <param name="stamper">stamper</param>
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/// <param name="isCalc">是否计算，由于初始绘制点是计算好的不用计算.</param>
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private void AddImageToPdf(iTextSharp.text.Image image, int pageNo, PointF point, PdfStamper stamper, bool isCalc = false)
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{
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PdfContentByte pdfContentByte = stamper.GetOverContent(Convert.ToInt32(pageNo + 1));
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int percent = GetPercentSize(image.Height, image.Width);
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image.ScalePercent(percent);
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if (isCalc)
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{
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this.SignPoint= point = new PointF(point.X, float.Parse(point.Y - image.Height * percent * 0.01 / 2 + ""));
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}
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image.SetAbsolutePosition(point.X, point.Y);
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pdfContentByte.AddImage(image);
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}
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/// <summary>
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/// <para>说明：根据比例缩放图片</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="h">高度</param>
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/// <param name="w">宽度</param>
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/// <returns>System.Int32.</returns>
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private int GetPercentSize(float height, float width)
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{
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float percent = height / width * 100;
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return Convert.ToInt32(Math.Round(percent));
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}
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/// <summary>
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/// <para>说明：打开本地文件(先屏蔽)</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-28 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <returns>System.String.</returns>
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//private string OpenLocalFile()
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//{
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// string fileName = string.Empty;
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// OpenFileDialog openFileDialog = new OpenFileDialog();
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// openFileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
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// openFileDialog.Filter = "(*.pdf)|*.pdf";
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// openFileDialog.RestoreDirectory = true;
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// openFileDialog.FilterIndex = 1;
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// if (openFileDialog.ShowDialog() == DialogResult.OK)
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// {
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// TempletFilePath = fileName = openFileDialog.FileName;
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// }
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// return fileName;
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//}
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/// <summary>
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/// <para>说明：画签名</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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private void DrawSignBox(Point point)
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{
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pictureBox.Visible = true;
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pictureBox.Width = SignImage.Width;
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pictureBox.Height = SignImage.Height;
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pictureBox.Image = SignImage;
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pictureBox.Location = new Point(point.X, point.Y - this.pictureBox.Height / 2);
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}
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/// <summary>
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/// <para>说明：记录保存的签名</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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private void SaveSignBox(Point point)
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{
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//先移除本页原有的点
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this._signBoxList.Remove(_signBoxList.FirstOrDefault(o => o.PageNumber == this.CurrentPageNo));
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SignBox signBox = new SignBox();
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signBox.PageNumber = this.CurrentPageNo;
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signBox.PointObj = point;
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this._signBoxList.Add(signBox);
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}
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/// <summary>
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/// <para>说明：找到记录的sign坐标并画</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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private void FindSignBox()
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{
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SignBox sign = _signBoxList.FirstOrDefault(o => o.PageNumber == this.pdfPageView.PageNumber);
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if (sign != null)
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{
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DrawSignBox(sign.PointObj);
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}
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else
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{
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pictureBox.Visible = false;
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}
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}
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#region 事件部分
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/// <summary>
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/// <para>说明：清除签名点</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="DevExpress.XtraBars.ItemClickEventArgs"/> instance containing the event data.</param>
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void OnDeleteClick(object sender, EventArgs e)
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{
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if (OnDeleteCallBack != null)
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OnDeleteCallBack(null, null);
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}
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/// <summary>
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/// <para>说明：鼠标滑轮滚动事件</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-29 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The sender.</param>
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/// <param name="e">The <see cref="MouseEventArgs"/> instance containing the event data.</param>
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void OnMouseWheelClick(object sender, MouseEventArgs e)
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{
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//向前滑
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if (e.Delta > 0)
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{
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OnPageUpClick(null, null);
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}
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else
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{
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OnPageNextClick(null, null);
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}
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}
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/// <summary>
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/// <para>说明：点击pdf</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-06-04 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The sender.</param>
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/// <param name="e">The <see cref="DevExpress.XtraBars.ItemClickEventArgs" /> instance containing the event data.</param>
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void OnPageClick(object sender, O2S.Components.PDFView4NET.PageClickEventArgs e)
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{ //初始化签名键值
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this.CurrentId = 0;
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this.CurrentPageNo = this.pdfPageView.PageNumber;
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PdfReader reader = new PdfReader(this._currentPdf);
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//记录上次操作文件，操作失误能返回
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this._pdfHistory = this._currentPdf;
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//合成的文件地址
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this._pdfNew = _fileDic + Guid.NewGuid() + ".pdf";
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using (Stream outPutPdfStream = new FileStream(_pdfNew, FileMode.Create, FileAccess.Write, FileShare.None))
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{
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iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(SignImage, SignImage.RawFormat);
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PdfStamper stamper = new PdfStamper(reader, outPutPdfStream);
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PointF point = new PointF(float.Parse(e.PDFPoint.X + ""), float.Parse(e.PDFPoint.Y + ""));
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this.AddImageToPdf(image, this.CurrentPageNo, point, stamper, true);
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stamper.Close();
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}
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reader.Close();
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DrawSignBox(e.ControlPoint);
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//将打的点记录下来
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SaveSignBox(e.ControlPoint);
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}
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/// <summary>
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/// <para>说明：上一页</para>
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/// <para>创建人：姜棚</para>
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/// <para>创建日期：2018-05-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="DevExpress.XtraBars.ItemClickEventArgs"/> instance containing the event data.</param>
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void OnPageUpClick(object sender, EventArgs e)
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{
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if (this.pdfPageView.PageNumber > 0)
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{
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|
this.pdfPageView.PageNumber--;
|
|
FindSignBox();
|
|
}
|
|
}
|
|
/// <summary>
|
|
/// <para>说明：下一页</para>
|
|
/// <para>创建人：姜棚</para>
|
|
/// <para>创建日期：2018-05-30 </para>
|
|
/// <para>修改人：</para>
|
|
/// <para>修改日期：</para>
|
|
/// <para>修改备注：</para>
|
|
/// <para>版本：1.0</para>
|
|
/// </summary>
|
|
/// <param name="sender">The source of the event.</param>
|
|
/// <param name="e">The <see cref="DevExpress.XtraBars.ItemClickEventArgs"/> instance containing the event data.</param>
|
|
void OnPageNextClick(object sender, EventArgs e)
|
|
{
|
|
if (this.pdfPageView.PageNumber < this.pdfDocument.PageCount - 1)
|
|
{
|
|
this.pdfPageView.PageNumber++;
|
|
FindSignBox();
|
|
}
|
|
}
|
|
/// <summary>
|
|
/// <para>说明：保存事件</para>
|
|
/// <para>创建人：姜棚</para>
|
|
/// <para>创建日期：2018-05-30 </para>
|
|
/// <para>修改人：</para>
|
|
/// <para>修改日期：</para>
|
|
/// <para>修改备注：</para>
|
|
/// <para>版本：1.0</para>
|
|
/// </summary>
|
|
/// <param name="sender">The source of the event.</param>
|
|
/// <param name="e">The <see cref="DevExpress.XtraBars.ItemClickEventArgs"/> instance containing the event data.</param>
|
|
void OnSaveClick(object sender, EventArgs e)
|
|
{
|
|
if (OnSaveCallBack != null)
|
|
OnSaveCallBack(null, null);
|
|
}
|
|
/// <summary>
|
|
/// <para>说明：另存事件</para>
|
|
/// <para>创建人：姜棚</para>
|
|
/// <para>创建日期：2018-05-30 </para>
|
|
/// <para>修改人：</para>
|
|
/// <para>修改日期：</para>
|
|
/// <para>修改备注：</para>
|
|
/// <para>版本：1.0</para>
|
|
/// </summary>
|
|
/// <param name="sender">The source of the event.</param>
|
|
/// <param name="e">The <see cref="DevExpress.XtraBars.ItemClickEventArgs"/> instance containing the event data.</param>
|
|
void OnSaveAsClick(object sender, EventArgs e)
|
|
{
|
|
if (OnSaveAsCallBack != null)
|
|
OnSaveAsCallBack(null, null);
|
|
}
|
|
#endregion
|
|
|
|
class SignBox
|
|
{
|
|
/// <summary>
|
|
/// 页码
|
|
/// </summary>
|
|
/// <value>The page number.</value>
|
|
public int PageNumber { get; set; }
|
|
/// <summary>
|
|
/// 坐标
|
|
/// </summary>
|
|
/// <value>The point.</value>
|
|
public Point PointObj { get; set; }
|
|
}
|
|
}
|
|
}
|