using System;
using System.Collections.Generic;
using System.Windows;
using System.Windows.Input;
using System.Windows.Media;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Printing;
using ZXing;
using ZXing.Common;


namespace SiaSun.LMS.WPFClient.MANAGE
{
    public partial class MANAGE_PRINT : AvalonDock.DocumentContent
    {
        public MANAGE_PRINT()
        {
            InitializeComponent();
        }

        private void BtnSave_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                if (string.IsNullOrEmpty(this.tbGoods_code.Text))
                {
                    MessageBox.Show("物料条码为空");
                    return;
                }
                if (string.IsNullOrEmpty(this.tbLeft.Text))
                {
                    MessageBox.Show("左边距为空");
                    return;
                }
                if (string.IsNullOrEmpty(this.tbTop.Text))
                {
                    MessageBox.Show("上边距为空");
                    return;
                }
                if (string.IsNullOrEmpty(this.tbSize.Text))
                {
                    MessageBox.Show("放大倍数为空");
                    return;
                }

                string sGoodsBarcode = this.tbGoods_code.Text.Trim();
                string[] strArr = sGoodsBarcode.Split('-');
                if (strArr.Length != 7)
                {
                    MessageBox.Show("物料条码规则不正确");
                    return;
                }

                //Print("Microsoft Print to PDF", sGoodsBarcode, Convert.ToSingle(this.tbLeft.Text), Convert.ToSingle(this.tbTop.Text));

                bool bSuccess = true;
                foreach (string sPrinter in PrinterSettings.InstalledPrinters)
                {
                    if (sPrinter.Contains("ZDesigner"))
                    {
                        Print(sPrinter, sGoodsBarcode,
                            Convert.ToSingle(this.tbSize.Text),
                            Convert.ToSingle(this.tbLeft.Text),
                            Convert.ToSingle(this.tbTop.Text));
                        break;
                    }
                }
                if (bSuccess)
                {
                    MessageBox.Show("打印成功");
                }
                else
                {
                    MessageBox.Show("打印失败，未找到打印机");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(string.Format("打印失败：{0}", ex.ToString()));
            }
        }

        private void BtnClear_Click(object sender, RoutedEventArgs e)
        {
            this.tbGoods_code.Text = string.Empty;
            this.tbGoods_code.Focus();
        }

        private void tbGoods_code_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                if (string.IsNullOrWhiteSpace(this.tbGoods_code.Text))
                {
                    return;
                }
                else
                {
                    BtnSave_Click(null, null);
                }
            }
        }

        private void Print(string sPrinterName, string sContent, float fPageScale, float fLeft, float fTop)
        {
            string sLine1 = string.Empty;
            string sLine2 = string.Empty;
            string[] asContent = sContent.Split('-');
            sLine1 = asContent[0] + "-" + asContent[1] + "-" + asContent[2];
            sLine2 = "-" + asContent[3] + "-" + asContent[4] + "-" + asContent[5] + "-" + asContent[6];
            PrintDocument printDocument = new PrintDocument();
            printDocument.PrintController = new StandardPrintController();
            printDocument.PrinterSettings.PrinterName = sPrinterName;
            //printDocument.DefaultPageSettings.PaperSize = new PaperSize("Custom", 100, 100);
            printDocument.PrintPage += (sender, e) =>
            {
                Font font = new Font("Arial", 4 * fPageScale, System.Drawing.FontStyle.Regular);
                System.Drawing.Brush b = new SolidBrush(System.Drawing.Color.Black);
                Graphics g = e.Graphics;
                g.PageScale = fPageScale;
                g.PageUnit = GraphicsUnit.Millimeter;
                g.DrawImage(new BarcodeWriter
                {
                    Options = new EncodingOptions { Width = 1000, Height = 1000, Margin = 0, PureBarcode = true },
                    Format = BarcodeFormat.QR_CODE,
                }.Write(sContent),
                    new RectangleF(fLeft + 5f, fTop, 10f, 10f));
                g.DrawString(sLine1, font, b, new PointF(fLeft, fTop + 10.5f));
                g.DrawString(sLine2, font, b, new PointF(fLeft + 2f, fTop + 12.5f));
                e.HasMorePages = false;
            };
            printDocument.Print();
        }
    }
}