//using System.Web;
using System;
using System.IO;
using System.Data;
using System.Text;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.Collections.Generic;
using System.Windows.Forms;
using Microsoft.Reporting.WinForms;
using System.Configuration;

/// <summary>
/// Summary description for reportPrinter
/// </summary>
public class reportPrinter
{

    #region area codice da non modificare

    private int m_currentPageIndex;
    private IList<Stream> m_streams;
    /// <summary>
    /// ciclo da fornire al renderizzatore dei report, per salvare 1 immagine da ogni pagina del report
    /// </summary>
    /// <param name="name"></param>
    /// <param name="fileNameExtension"></param>
    /// <param name="encoding"></param>
    /// <param name="mimeType"></param>
    /// <param name="willSeek"></param>
    /// <returns></returns>
    private Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek)
    {
        Stream stream = new FileStream(SteamWare.SteamwareStrings.getFilePath(@".\tmp\" + name + "." + fileNameExtension), FileMode.Create);
        m_streams.Add(stream);
        return stream;
    }
    /// <summary>
    /// Handler per PrintPageEvents
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="ev"></param>
    private void PrintPage(object sender, PrintPageEventArgs ev)
    {
        Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);
        ev.Graphics.DrawImage(pageImage, ev.PageBounds);
        m_currentPageIndex++;
        ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
    }
    /// <summary>
    /// funzione di stampa...
    /// </summary>
    private void Print(string printerName)
    {
        //const string printerName = "Microsoft Office Document Image Writer";
        //const string printerName = "Brother HL-2170W series";
        if (m_streams == null || m_streams.Count == 0)
            return;
        PrintDocument printDoc = new PrintDocument();
        printDoc.PrinterSettings.PrinterName = printerName;
        if (!printDoc.PrinterSettings.IsValid)
        {
            string msg = String.Format("Can't find printer \"{0}\".", printerName);
            MessageBox.Show(msg, "Print Error");
            return;
        }
        printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
        printDoc.Print();
    }
    /// <summary>
    /// Export del report come EMF (Enhanced Metafile) file.
    /// </summary>
    /// <param name="report"></param>
    private void Export(LocalReport report, string deviceInfo)
    {
        Warning[] warnings;
        m_streams = new List<Stream>();
        report.Render("Image", deviceInfo, CreateStream, out warnings);
        foreach (Stream stream in m_streams) stream.Position = 0;
    }
    /// <summary>
    /// dispone l'applicazione e rilascia le risorse
    /// </summary>
    public void Dispose()
    {
        if (m_streams != null)
        {
            foreach (Stream stream in m_streams)
                stream.Close();
            m_streams = null;
        }
    }

    #endregion

    #region area codice da modificare

    /// <summary>
    /// carica i dati richiesti dal report dalla StoredProcedure (filtrando quindi...)
    /// </summary>
    /// <param name="idxObj"></param>
    /// <returns></returns>
    private DataTable caricaDati(reportRichiesto tipoReport, string idxObj)
    {
        DataTable tab = new DataTable();
        switch (tipoReport)
        {
            case reportRichiesto.Barcode:
                tab = (DataTable)XPS.obj.taDdt.GetData(idxObj);
                break;
            case reportRichiesto.SchedaIdentificazione:
                tab = (DataTable)XPS.obj.taSchedaIdent.GetData(idxObj);
                break;
            default:
                break;
        }
        return tab;
    }
    /// <summary>
    /// Crea un report locale da file rdlc, carica i dati, esporta report come EMF file e quindi lo invia alla stampante
    /// </summary>
    /// <param name="idxObjRich"></param>
    /// <param name="printerName"></param>
    public void printReport(reportRichiesto tipoReport, string printerName, string parametro)
    {
        LocalReport report = new LocalReport();
        string deviceInfo = "";
        switch (tipoReport)
        {
            case reportRichiesto.Barcode:
                report.ReportPath = @".\LabelEqua.rdlc";
                report.DataSources.Add(new ReportDataSource("Equa", caricaDati(tipoReport, parametro))); // OCCHIO!!! va messa sorgente dati CORRETTA
                deviceInfo = "<DeviceInfo>" +
                              "  <OutputFormat>EMF</OutputFormat>" +
                              "  <PageWidth>5.4cm</PageWidth>" +
                              "  <PageHeight>1.7cm</PageHeight>" +
                              "  <MarginTop>0cm</MarginTop>" +
                              "  <MarginLeft>0cm</MarginLeft>" +
                              "  <MarginRight>0cm</MarginRight>" +
                              "  <MarginBottom>0cm</MarginBottom>" +
                              "</DeviceInfo>";
                break;
            case reportRichiesto.SchedaIdentificazione:
                report.ReportPath = @".\ReportSchedaIdentificazione.rdlc";
                report.DataSources.Add(new ReportDataSource("Equa", caricaDati(tipoReport, parametro)));
                deviceInfo = "<DeviceInfo>" +
                              "  <OutputFormat>EMF</OutputFormat>" +
                              "  <PageWidth>25cm</PageWidth>" +
                              "  <PageHeight>17.6cm</PageHeight>" +
                              "  <MarginTop>0.2cm</MarginTop>" +
                              "  <MarginLeft>0.2cm</MarginLeft>" +
                              "  <MarginRight>0.2cm</MarginRight>" +
                              "  <MarginBottom>0.2cm</MarginBottom>" +
                              "</DeviceInfo>";
                break;
            default:
                break;
        }
        // setting parametro...
        ReportParameter[] idxObj = { new ReportParameter("IdxObj", parametro) };
        report.SetParameters(idxObj);
        // export in EMF
        Export(report, deviceInfo);
        m_currentPageIndex = 0;
        // stampo
        Print(printerName);
        // do dispose?
        Dispose();
    }
    /// <summary>
    /// oggetto protected
    /// </summary>
    /// <param name="args"></param>
    protected reportPrinter()
    {
        //
    }
    /// <summary>
    /// singleton pubblico
    /// </summary>
    public static reportPrinter obj = new reportPrinter();

    #endregion
}
/// <summary>
/// tipologia di report ammessi alla stampa...
/// </summary>
public enum reportRichiesto
{
    Barcode,
    SchedaIdentificazione
}