// TwainDoc.cpp : implementation of the CTwainDoc class
//

#include "stdafx.h"
#include "Twain.h"

#include "TwainDoc.h"
#include "TwainView.h"
#include "LEADRaster.h"
#include "LEADRasterView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CTwainDoc

IMPLEMENT_DYNCREATE(CTwainDoc, CDocument)

BEGIN_MESSAGE_MAP(CTwainDoc, CDocument)
   //{{AFX_MSG_MAP(CTwainDoc)
      // NOTE - the ClassWizard will add and remove mapping macros here.
      //    DO NOT EDIT what you see in these blocks of generated code!
   //}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTwainDoc construction/destruction

CTwainDoc::CTwainDoc()
{
   // TODO: add one-time construction code here

   m_pLEADRaster = NULL;
}

CTwainDoc::~CTwainDoc()
{
   if (m_pLEADRaster)
      m_pLEADRaster->Release();
}

BOOL CTwainDoc::OnNewDocument()
{
   if (!CDocument::OnNewDocument())
      return FALSE;

   CTwainApp * pApp = (CTwainApp *)AfxGetApp();

   if (m_pLEADRaster)
   {
      m_pLEADRaster->Free();
      m_pLEADRaster->Release();
      m_pLEADRaster = NULL;
   }

   HRESULT hr = CoCreateInstance(CLSID_LEADRaster, NULL, CLSCTX_ALL, IID_ILEADRaster, (void**)&m_pLEADRaster);
   if (FAILED(hr))
      return FALSE;

   m_pLEADRaster->Bitmap = pApp->m_pRaster->Bitmap;
   return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// CTwainDoc serialization

void CTwainDoc::Serialize(CArchive& ar)
{
   if (ar.IsStoring())
   {
      // TODO: add storing code here
   }
   else
   {
      // TODO: add loading code here
   }
}

/////////////////////////////////////////////////////////////////////////////
// CTwainDoc diagnostics

#ifdef _DEBUG
void CTwainDoc::AssertValid() const
{
   CDocument::AssertValid();
}

void CTwainDoc::Dump(CDumpContext& dc) const
{
   CDocument::Dump(dc);
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CTwainDoc commands

BOOL CTwainDoc::OnOpenDocument(LPCTSTR lpszPathName) 
{
   if (!CDocument::OnOpenDocument(lpszPathName))
      return FALSE;

   if (!lpszPathName)
      return FALSE;

   CTwainApp * pApp = (CTwainApp *)AfxGetApp();
   CTwainView * pView = (CTwainView *)GetView();

   if (m_pLEADRaster)
   {
      m_pLEADRaster->Free();
      m_pLEADRaster->Release();
      m_pLEADRaster = NULL;
   }

   HRESULT hr = CoCreateInstance(CLSID_LEADRaster, NULL, CLSCTX_ALL, IID_ILEADRaster, (void**)&m_pLEADRaster);
   if (FAILED(hr))
      return FALSE;

   int nRet = pApp->m_pRasterIO->Load((LPDISPATCH)m_pLEADRaster, lpszPathName, 0, pApp->m_nPageNum, 1);
   return (nRet == 0) ? TRUE : FALSE;
}

CView * CTwainDoc::GetView()
{
   POSITION pos = GetFirstViewPosition();
   return GetNextView(pos);
}