scribitm.cpp
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上传用户:biuytresa
上传日期:2007-12-07
资源大小:721k
文件大小:4k
源码类别:
DNA
开发平台:
Visual C++
- // ScribItm.cpp : implementation of the CScribbleItem class
- //
- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992-1998 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and related
- // electronic documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
- #include "stdafx.h"
- #include "Scribble.h"
- #include "ScribDoc.h"
- #include "ScribItm.h"
- #ifdef _DEBUG
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////////
- // CScribbleItem implementation
- IMPLEMENT_DYNAMIC(CScribbleItem, COleServerItem)
- CScribbleItem::CScribbleItem(CScribbleDoc* pContainerDoc)
- : COleServerItem(pContainerDoc, TRUE)
- {
- // TODO: add one-time construction code here
- // (eg, adding additional clipboard formats to the item's data source)
- }
- CScribbleItem::~CScribbleItem()
- {
- // TODO: add cleanup code here
- }
- void CScribbleItem::Serialize(CArchive& ar)
- {
- // CScribbleItem::Serialize will be called by the framework if
- // the item is copied to the clipboard. This can happen automatically
- // through the OLE callback OnGetClipboardData. A good default for
- // the embedded item is simply to delegate to the document's Serialize
- // function. If you support links, then you will want to serialize
- // just a portion of the document.
- if (!IsLinkedItem())
- {
- CScribbleDoc* pDoc = GetDocument();
- ASSERT_VALID(pDoc);
- pDoc->Serialize(ar);
- }
- }
- BOOL CScribbleItem::OnGetExtent(DVASPECT dwDrawAspect, CSize& rSize)
- {
- // Most applications, like this one, only handle drawing the content
- // aspect of the item. If you wish to support other aspects, such
- // as DVASPECT_THUMBNAIL (by overriding OnDrawEx), then this
- // implementation of OnGetExtent should be modified to handle the
- // additional aspect(s).
- if (dwDrawAspect != DVASPECT_CONTENT)
- return COleServerItem::OnGetExtent(dwDrawAspect, rSize);
- // CScribbleItem::OnGetExtent is called to get the extent in
- // HIMETRIC units of the entire item. The default implementation
- // here simply returns a hard-coded number of units.
- CScribbleDoc* pDoc = GetDocument();
- ASSERT_VALID(pDoc);
- rSize = pDoc->GetDocSize();
- CClientDC dc(NULL);
- // use a mapping mode based on logical units
- // (we can't use MM_LOENGLISH because MM_LOENGLISH uses physical inches)
- dc.SetMapMode(MM_ANISOTROPIC);
- dc.SetViewportExt(dc.GetDeviceCaps(LOGPIXELSX), dc.GetDeviceCaps(LOGPIXELSY));
- dc.SetWindowExt(100, -100);
- dc.LPtoHIMETRIC(&rSize);
- return TRUE;
- }
- BOOL CScribbleItem::OnDraw(CDC* pDC, CSize& /* rSize */)
- {
- CScribbleDoc* pDoc = GetDocument();
- ASSERT_VALID(pDoc);
- pDC->SetMapMode(MM_ANISOTROPIC);
- CSize sizeDoc = pDoc->GetDocSize();
- sizeDoc.cy = -sizeDoc.cy;
- pDC->SetWindowOrg(0,0);
- pDC->SetWindowExt(sizeDoc);
- CTypedPtrList<CObList,CStroke*>& strokeList = pDoc->m_strokeList;
- POSITION pos = strokeList.GetHeadPosition();
- while (pos != NULL)
- {
- strokeList.GetNext(pos)->DrawStroke(pDC);
- }
- return TRUE;
- }
- /////////////////////////////////////////////////////////////////////////////
- // CScribbleItem diagnostics
- #ifdef _DEBUG
- void CScribbleItem::AssertValid() const
- {
- COleServerItem::AssertValid();
- }
- void CScribbleItem::Dump(CDumpContext& dc) const
- {
- COleServerItem::Dump(dc);
- }
- #endif
- /////////////////////////////////////////////////////////////////////////////