www.pudn.com > DEM_TDS.rar > ComboToolBar.cpp, change:2007-05-27,size:1965b

// ComboToolBar.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "DEM.h" 
#include "ComboToolBar.h" 
#include "DEMView.h" 
#include "MainFrm.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CComboToolBar 
 
CComboToolBar::CComboToolBar() 
{ 
} 
 
CComboToolBar::~CComboToolBar() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CComboToolBar, CToolBar) 
	//{{AFX_MSG_MAP(CComboToolBar) 
		// NOTE - the ClassWizard will add and remove mapping macros here. 
	ON_CBN_SELENDOK(IDC_SHOWSCALE, OnSelectShowScale) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CComboToolBar message handlers 
 
BOOL CComboToolBar::PreTranslateMessage(MSG* pMsg) 
{ 
       if (pMsg->message == WM_KEYDOWN) 
       { 
              NMHDR nm;    
              nm.hwndFrom = m_hWnd; 
              nm.idFrom = GetDlgCtrlID(); 
              nm.code = NM_RETURN; 
              switch (pMsg->wParam) 
              { 
              case VK_RETURN: 
                     //发送通知消息 
				  {  
					if(showscalecombox.IsChild(GetFocus())) OnSelectShowScale(); 
                     GetOwner()->SendMessage(WM_NOTIFY, nm.idFrom, (LPARAM)&nm); 
                     return TRUE; 
				  } 
			  } 
		} 
 return CToolBar::PreTranslateMessage(pMsg); 
} 
 
void CComboToolBar::OnSelectShowScale() 
{ 
	CString cs;  
	showscalecombox.GetWindowText(cs);  
	float scale; 
	int	get=sscanf(cs,"%f",&scale); 
	if(get!=1)return; 
	scale/=100; 
 
	CMainFrame *pMainFrm=(CMainFrame *)AfxGetMainWnd(); 
	CMDIChildWnd *pChild =pMainFrm->MDIGetActive(); 
	CDEMView *pView=(CDEMView*)pChild->GetActiveView(); 
 
	CPoint point(pView->mapview.GetViewExt().x/2,pView->mapview.GetViewExt().y/2); 
	pView->Getmapview().SetShowScale(scale/pView->Getmapview().scale,point); 
	pView->Invalidate(); 
}