www.pudn.com > vc6135765900355.rar > DrawDoc.cpp

// 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); 
	 
}