// SkViewDoc.cpp : implementation of the CSkViewDoc class
  //
  
  include <stdafx.h>
  include <DllImports.h>
  include <SkView.h>
  
  include <SkViewDoc.h>
  
  ifdef _DEBUG
  define new DEBUG_NEW
  endif
  
  // CSkViewDoc
  
  IMPLEMENT_DYNCREATE(CSkViewDoc, CDocument)
  
  BEGIN_MESSAGE_MAP(CSkViewDoc, CDocument)
  END_MESSAGE_MAP()
  
  // CSkViewDoc construction/destruction
  
  CSkViewDoc::CSkViewDoc()
  {
          // TODO: add one-time construction code here
  
  }
  
  CSkViewDoc::~CSkViewDoc()
  {
     POSITION aPosition = m_ElementList.GetHeadPosition();
     while(aPosition)
        delete m_ElementList.GetNext(aPosition);
  
     m_ElementList.RemoveAll();
  }
  
  BOOL CSkViewDoc::OnNewDocument()
  {
          if (!CDocument::OnNewDocument())
                  return FALSE;
  
          // TODO: add reinitialization code here
          // (SDI documents will reuse this document)
  
          return TRUE;
  }
  
  // CSkViewDoc serialization
  
  void CSkViewDoc::Serialize(CArchive& ar)
  {
    m_ElementList.Serialize(ar);
  
    if (ar.IsStoring())
    {
      // TODO: add storing code here
    }
    else
    {
      ar >> m_Color
         >> m_Element
         >> m_PenWidth
         >> m_DocSize;
    }
  }
  
  // Get the rectangle enclosing the entire document
  CRect CSkViewDoc::GetDocExtent()
  {
    CRect DocExtent(0,0,1,1);            // Initial document extent
    CRect ElementBound(0,0,0,0);         // Space for element bounding rectangle
  
    POSITION aPosition = m_ElementList.GetHeadPosition();
  
    while(aPosition)                     // Loop through all the elements in the list
    {
      // Get the bounding rectangle for the element
      ElementBound=(m_ElementList.GetNext(aPosition))->GetBoundRect();
  
      // Make coordinates of document extent the outer limits
      DocExtent.UnionRect(DocExtent, ElementBound);
    }
    DocExtent.NormalizeRect();
    return DocExtent;
  }
  
  // CSkViewDoc diagnostics
  
  ifdef _DEBUG
  void CSkViewDoc::AssertValid() const
  {
          CDocument::AssertValid();
  }
  
  void CSkViewDoc::Dump(CDumpContext& dc) const
  {
          CDocument::Dump(dc);
  }
  endif //_DEBUG
  
  // CSkViewDoc commands
  
  BOOL CSkViewDoc::OnOpenDocument(LPCTSTR lpszPathName)
  {
    POSITION aPosition = m_ElementList.GetHeadPosition();
    while(aPosition)
      delete m_ElementList.GetNext(aPosition);
  
    m_ElementList.RemoveAll();
    if (!CDocument::OnOpenDocument(lpszPathName))
     return FALSE;
  
    // TODO:  Add your specialized creation code here
  
    return TRUE;
  }