// Copyright 2012 ESRI
// 
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
// 
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
// 
// See the use restrictions.
// 

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Drawing.Printing;
using System.Diagnostics;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Output;
using System.Collections;
using System.Windows.Forms;

namespace PrintActiveViewCS_Net_Addin
{

  /// <summary>
  /// PrintActiveViewCS_Net creates a command which will print the active view to the default printer's default page.
  /// </summary>
  public class PrintActiveViewCS_Net_Addin : ESRI.ArcGIS.Desktop.AddIns.Button
  {

    public PrintActiveViewCS_Net_Addin()
    {
    }

    protected override void OnClick()
    {
      PrintActiveViewParameterized(3);
    }
    protected override void OnUpdate()
    {
      Enabled = ArcMap.Application != null;
    }

    public void PrintActiveViewParameterized(int iResampleRatio)
    {
    
      /* Prints the Active View of the document to selected output format. */
      //          
      IActiveView docActiveView = ArcMap.Document.ActiveView;
      IPrinter docPrinter;
      IPrintAndExport PrintAndExport = new PrintAndExportClass();
      IPaper docPaper;
      /* printdocument is from the .NET assembly system.drawing.printing */
      System.Drawing.Printing.PrintDocument sysPrintDocumentDocument;
      short iNumPages;

      /* Now we need to get the default printer name.  Since this is a generic command,
       * we can't use the printername property of the document.  So instead, we use the 
       * System.Drawing.Printing objects to find the default printer.
       */
      docPrinter = new EmfPrinterClass();
      sysPrintDocumentDocument = new System.Drawing.Printing.PrintDocument();
      docPaper = new PaperClass();

      /* testing to see if printer instantiated in sysPrintDocumentDocument is the 
       * default printer.  It SHOULD be, but this is just a reality check.
       */
      bool isDefault = sysPrintDocumentDocument.PrinterSettings.IsDefaultPrinter;

      if (isDefault)
      {
        //Set docPaper's printername to the printername of the default printer
        docPaper.PrinterName = sysPrintDocumentDocument.PrinterSettings.PrinterName;

      }
      else
      {
        //if we get an unexpected result, return.
        MessageBox.Show("Error getting default printer info, exiting...");
        return;
      }

      //make sure the paper orientation is set to the orientation matching the current view.
      docPaper.Orientation = ArcMap.Document.PageLayout.Page.Orientation;
      
      /* Now assign docPrinter the paper and with it the printername.  This process is two steps
       * because you cannot change an IPrinter's printer except by passing it as a part of 
       * the IPaper.  That's why we setup docPrinter.Paper.PrinterName first.
       */
      docPrinter.Paper = docPaper;

      //set the spoolfilename (this is the job name that shows up in the print queue)
      docPrinter.SpoolFileName = "PrintActiveViewSample";

      // Find out how many printer pages the output will cover. 
      if (ArcMap.Document.ActiveView is IPageLayout)
      {
        ArcMap.Document.PageLayout.Page.PrinterPageCount (docPrinter, 0, out iNumPages);
      }
      else
      {
        iNumPages = 1;
      }

      for (short lCurrentPageNum = 1; lCurrentPageNum <= iNumPages; lCurrentPageNum++)
      {
          try
          {
              PrintAndExport.Print(ArcMap.Document.ActiveView, docPrinter, ArcMap.Document.PageLayout.Page, lCurrentPageNum, iResampleRatio, null);
          }
          catch
          {
              //need to catch exceptions in PrintAndExport.Print - for instance if the job is cancelled.
              MessageBox.Show("An error has occurred.");
          }
      }
       
    }
  }
  
  
}