/// <summary>
    /// 小票打印
    /// </summary>
    public class PosPrint
    {
        private System.Windows.Forms.PrintPreviewDialog printv_pos = null;
        private System.Drawing.Printing.PrintDocument printd_pos = null;
        public static string strContent = string.Empty;
        private string printContent = string.Empty;

        public PosPrint(string printContent)
        {
            this.printv_pos = new System.Windows.Forms.PrintPreviewDialog();
            this.printd_pos = new System.Drawing.Printing.PrintDocument();
            this.printv_pos.AutoScrollMargin = new System.Drawing.Size(0, 0);
            this.printv_pos.AutoScrollMinSize = new System.Drawing.Size(0, 0);
            this.printv_pos.ClientSize = new System.Drawing.Size(500, 200);
            this.printv_pos.Document = this.printd_pos;
            this.printv_pos.Enabled = true;
            this.printv_pos.Name = "printPreviewDialog1";
            this.printv_pos.Visible = false;
            this.printd_pos.DocumentName = "社区活动积分小票";
            this.printd_pos.OriginAtMargins = true;
            this.printd_pos.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.printd_pos_PrintPage);

            this.printContent = printContent;
        }

        private int getYc(double cm)
        {
            return (int)(cm / 25.4) * 100;
        }

        public void print_view(IWin32Window win,int x,int y)
        {

            this.printd_pos.PrintController = new System.Drawing.Printing.StandardPrintController();
            this.printd_pos.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(printd_pos_PrintPage);

            //设置边距
            Margins margins = new Margins(45, 20, 50, 20);
            this.printd_pos.DefaultPageSettings.Margins = margins;
            this.printd_pos.DefaultPageSettings.PaperSize = new System.Drawing.Printing.PaperSize("First custom size", getYc(x), y);
            //printv_pos.PrintPreviewControl.AutoZoom = false;
            //printv_pos.PrintPreviewControl.Zoom = 1;
            //this.printv_pos.ShowDialog(win);
            try
            {
                printd_pos.Print();
            }
            catch
            {
                printd_pos.PrintController.OnEndPrint(printd_pos, new PrintEventArgs());
            }
        }
        /// <summary>
        /// 打印内容
        /// </summary>
        public string GetPrintStr(string printContent)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append(CommonClass.config.PrintHeader + "\n");
            sb.Append("日  期:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "\n");
            sb.Append("==============================\n");
            sb.Append(printContent);
            sb.Append("------------------------------\n");
            sb.Append("操作员：" + CommonClass.loginEntity.O_OperatorName + "\n");
            string myfoot = string.Format("{0}     \n", CommonClass.config.PrintFoot);
            sb.Append(myfoot);
            sb.Append("\r\n小勇软件工作室提供技术支持");
            return sb.ToString();
        }
        private void printd_pos_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            Graphics g = e.Graphics;
            string strFile = GetPrintStr(this.printContent);
            Font ft = new Font("宋体", 9.0F, FontStyle.Regular);
            Point pt = new Point(0, 0);
            g.DrawString(strFile, ft, new SolidBrush(Color.Black), pt);
        }
    }