drawdoc.cpp

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// DrawDoc.cpp : implementation of the CDrawDoc class
//

#include "stdafx.h"
#include "DrawCli.h"

#include "DrawDoc.h"
#include "CntrItem.h"

#include "DrawObj.h"
#include "DrawVw.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDrawDoc

IMPLEMENT_DYNCREATE(CDrawDoc, COleDocument)

BEGIN_MESSAGE_MAP(CDrawDoc, COleDocument)
	//{{AFX_MSG_MAP(CDrawDoc)
	ON_COMMAND(ID_VIEW_PAPERCOLOR, OnViewPapercolor)
	//}}AFX_MSG_MAP
	// Enable default OLE container implementation
	ON_UPDATE_COMMAND_UI(ID_EDIT_PASTE, COleDocument::OnUpdatePasteMenu)
	ON_UPDATE_COMMAND_UI(ID_EDIT_PASTE_LINK, COleDocument::OnUpdatePasteLinkMenu)
	ON_UPDATE_COMMAND_UI(ID_OLE_EDIT_CONVERT, COleDocument::OnUpdateObjectVerbMenu)
	ON_COMMAND(ID_OLE_EDIT_CONVERT, COleDocument::OnEditConvert)
	ON_UPDATE_COMMAND_UI(ID_OLE_EDIT_LINKS, COleDocument::OnUpdateEditLinksMenu)
	ON_COMMAND(ID_OLE_EDIT_LINKS, COleDocument::OnEditLinks)
	ON_UPDATE_COMMAND_UI_RANGE(ID_OLE_VERB_FIRST, ID_OLE_VERB_LAST, COleDocument::OnUpdateObjectVerbMenu)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDrawDoc construction/destruction

CDrawDoc::CDrawDoc()
{
	// Use OLE compound files
	EnableCompoundFile();

	m_nMapMode = MM_ANISOTROPIC;
	m_paperColor = RGB(255, 255, 255);
	ComputePageSize();

}

CDrawDoc::~CDrawDoc()
{
}

BOOL CDrawDoc::OnNewDocument()
{
	if (!COleDocument::OnNewDocument())
		return FALSE;

	// TODO: add reinitialization code here
	// (SDI documents will reuse this document)

	return TRUE;
}



/////////////////////////////////////////////////////////////////////////////
// CDrawDoc serialization

void CDrawDoc::Serialize(CArchive& ar)
{
	if (ar.IsStoring())
	{
		ar << m_paperColor;
		m_objects.Serialize(ar);
	}
	else
	{
		ar >> m_paperColor;
		m_objects.Serialize(ar);
	}

	// Calling the base class COleDocument enables serialization
	//  of the container document's COleClientItem objects.
	COleDocument::Serialize(ar);
}

/////////////////////////////////////////////////////////////////////////////
// CDrawDoc diagnostics

#ifdef _DEBUG
void CDrawDoc::AssertValid() const
{
	COleDocument::AssertValid();
}

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

/////////////////////////////////////////////////////////////////////////////
// CDrawDoc commands

void CDrawDoc::Add(CDrawObj *pObj)
{
	m_objects.AddTail(pObj);
	pObj->m_pDocument = this;
	SetModifiedFlag();
}
CDrawObj* CDrawDoc::ObjectAt(const CPoint& point)
{
	CRect rect(point, CSize(1, 1));
	POSITION pos = m_objects.GetTailPosition();
	while (pos != NULL)
	{
		CDrawObj* pObj = m_objects.GetPrev(pos);
		if (pObj->Intersects(rect))
			return pObj;
	}

	return NULL;
}

void CDrawDoc::Remove(CDrawObj* pObj)
{
	// Find and remove from document
	POSITION pos = m_objects.Find(pObj);
	if (pos != NULL)
		m_objects.RemoveAt(pos);
	// set document modified flag
	SetModifiedFlag();

	// call remove for each view so that the view can remove from m_selection
	pos = GetFirstViewPosition();
	while (pos != NULL)
		((CDrawView*)GetNextView(pos))->Remove(pObj);

}
void CDrawDoc::Draw(CDC* pDC,CDrawView* pView)
{
	
   	POSITION pos = m_objects.GetHeadPosition();
	while (pos != NULL)
	{
		CDrawObj* pObj = m_objects.GetNext(pos);
		pObj->Draw(pDC);
		if (pView->m_bActive && !pDC->IsPrinting() && pView->IsSelected(pObj))
			pObj->DrawTracker(pDC, CDrawObj::selected);
	}
	
}
void CDrawDoc::ComputePageSize()
{
	CSize new_size(800, 600);  // 8.5" x 11" default

	CPrintDialog dlg(FALSE);
	if (AfxGetApp()->GetPrinterDeviceDefaults(&dlg.m_pd))
	{
		// GetPrinterDC returns a HDC so attach it
		CDC dc;
		HDC hDC= dlg.CreatePrinterDC();
		ASSERT(hDC != NULL);
		dc.Attach(hDC);

		// Get the size of the page in loenglish
		new_size.cx = MulDiv(dc.GetDeviceCaps(HORZSIZE), 1000, 254);
		new_size.cy = MulDiv(dc.GetDeviceCaps(VERTSIZE), 1000, 254);
	}

	// if size changed then iterate over views and reset
	if (new_size != m_size)
	{
		m_size = new_size;
		POSITION pos = GetFirstViewPosition();
		while (pos != NULL)
			((CDrawView*)GetNextView(pos))->SetPageSize(m_size);
	}

}

void CDrawDoc::OnViewPapercolor() 
{
	CColorDialog dlg;
	if (dlg.DoModal() != IDOK)
		return;

	m_paperColor = dlg.GetColor();
	SetModifiedFlag();
	UpdateAllViews(NULL);
	
}