www.pudn.com > 陈建春VC开发GIS的源码.rar > CntrItem.cpp, change:1999-06-13,size:4548b

// CntrItem.cpp : implementation of the CDrawCntrItem class 
// 
 
#include "stdafx.h" 
#include "Draw.h" 
 
#include "DrawDoc.h" 
#include "DrawView.h" 
#include "CntrItem.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
extern void DPtoVP(float x,float y,int *X,int *Y); 
extern void VPtoDP(int x,int y,float *X,float *Y); 
extern BOOL IsRectCross(float minx,float miny,float maxx,float maxy); 
///////////////////////////////////////////////////////////////////////////// 
// CDrawCntrItem implementation 
 
IMPLEMENT_SERIAL(CDrawCntrItem, COleClientItem, 0) 
 
CDrawCntrItem::CDrawCntrItem(CDrawDoc* pContainer) 
	: COleClientItem(pContainer) 
{ 
	// TODO: add one-time construction code here 
	VPtoDP(10,210,&m_X1,&m_Y1); 
	VPtoDP(210,10,&m_X2,&m_Y2); 
	b_Select=FALSE; 
} 
 
CDrawCntrItem::~CDrawCntrItem() 
{ 
	// TODO: add cleanup code here 
	 
} 
 
void CDrawCntrItem::OnChange(OLE_NOTIFICATION nCode, DWORD dwParam) 
{ 
	ASSERT_VALID(this); 
 
	COleClientItem::OnChange(nCode, dwParam); 
 
	// When an item is being edited (either in-place or fully open) 
	//  it sends OnChange notifications for changes in the state of the 
	//  item or visual appearance of its content. 
 
	// TODO: invalidate the item by calling UpdateAllViews 
	//  (with hints appropriate to your application) 
 
	GetDocument()->UpdateAllViews(NULL); 
		// for now just update ALL views/no hints 
} 
 
BOOL CDrawCntrItem::OnChangeItemPosition(const CRect& rectPos) 
{ 
	ASSERT_VALID(this); 
 
	// During in-place activation CDrawCntrItem::OnChangeItemPosition 
	//  is called by the server to change the position of the in-place 
	//  window.  Usually, this is a result of the data in the server 
	//  document changing such that the extent has changed or as a result 
	//  of in-place resizing. 
	// 
	// The default here is to call the base class, which will call 
	//  COleClientItem::SetItemRects to move the item 
	//  to the new position. 
 
	if (!COleClientItem::OnChangeItemPosition(rectPos)) 
		return FALSE; 
 
	// TODO: update any cache you may have of the item's rectangle/extent 
 
	return TRUE; 
} 
 
void CDrawCntrItem::OnGetItemPosition(CRect& rPosition) 
{ 
	ASSERT_VALID(this); 
 
	// During in-place activation, CDrawCntrItem::OnGetItemPosition 
	//  will be called to determine the location of this item.  The default 
	//  implementation created from AppWizard simply returns a hard-coded 
	//  rectangle.  Usually, this rectangle would reflect the current 
	//  position of the item relative to the view used for activation. 
	//  You can obtain the view by calling CDrawCntrItem::GetActiveView. 
 
	// TODO: return correct rectangle (in pixels) in rPosition 
 
	rPosition.SetRect(10, 10, 210, 210); 
} 
 
void CDrawCntrItem::OnActivate() 
{ 
    // Allow only one inplace activate item per frame 
    CDrawView* pView = GetActiveView(); 
    ASSERT_VALID(pView); 
    COleClientItem* pItem = GetDocument()->GetInPlaceActiveItem(pView); 
    if (pItem != NULL && pItem != this) 
        pItem->Close(); 
     
    COleClientItem::OnActivate(); 
} 
 
void CDrawCntrItem::OnDeactivateUI(BOOL bUndoable) 
{ 
	COleClientItem::OnDeactivateUI(bUndoable); 
 
    // Hide the object if it is not an outside-in object 
    DWORD dwMisc = 0; 
    m_lpObject->GetMiscStatus(GetDrawAspect(), &dwMisc); 
    if (dwMisc & OLEMISC_INSIDEOUT) 
        DoVerb(OLEIVERB_HIDE, NULL); 
} 
 
void CDrawCntrItem::Serialize(CArchive& ar) 
{ 
	ASSERT_VALID(this); 
	COleClientItem::Serialize(ar); 
	if (ar.IsStoring()) 
	{ 
		ar<<m_X1<<m_Y1<<m_X2<<m_Y2; 
	} 
	else 
	{ 
		ar>>m_X1>>m_Y1>>m_X2>>m_Y2; 
		b_Select=FALSE; 
	} 
} 
 
///////////////////////////////////////////////////////////////////////////// 
// CDrawCntrItem diagnostics 
 
#ifdef _DEBUG 
void CDrawCntrItem::AssertValid() const 
{ 
	COleClientItem::AssertValid(); 
} 
 
void CDrawCntrItem::Dump(CDumpContext& dc) const 
{ 
	COleClientItem::Dump(dc); 
} 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
 
void CDrawCntrItem::Draw(CDC * pDC) 
{ 
	int x1,y1,x2,y2; 
	CRect m_rect; 
	//加入判断是否在 
	if(!IsRectCross(m_X1,m_Y1,m_X2,m_Y2)) 
		return; 
	DPtoVP(m_X1,m_Y1,&x1,&y1); 
	DPtoVP(m_X2,m_Y2,&x2,&y2); 
	m_rect.SetRect(x1,y2,x2,y1); 
	COleClientItem::Draw(pDC,m_rect); 
	if(b_Select) 
		pDC->InvertRect(&m_rect); 
} 
 
BOOL CDrawCntrItem::IsPoint(CPoint point) 
{ 
	float x1,y1; 
	VPtoDP(point.x,point.y,&x1,&y1); 
	if(x1>=m_X1&&x1=m_X2&&y1>=m_Y1&&y1=m_Y2) 
		return TRUE; 
	return FALSE; 
}