splash.cpp

凌阳单片机的上位机程序

//
// Splash.cpp : implementation file
//

#include <atlbase.h>
#include <afxwin.h>
#include <afxpriv2.h>

#include "stdafx.h"  
#include "Splash.h"  

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

/////////////////////////////////////////////////////////////////////////////
//   CSplashWnd class

////////////////////////////////////////////////////////////////////////////

CSplashWnd::CSplashWnd(LPCTSTR lpszFileName)
{
	fileIsValid = pic.Load(lpszFileName);
	if(fileIsValid)
	{
		CSize cz = pic.GetImageSize(NULL);
		width = cz.cx;
		height = cz.cy;
	}
}


////////////////////////////////////////////////////////////////////////////////

CSplashWnd::~CSplashWnd()
{
}

////////////////////////////////////////////////////////////////////////////////
//message map
//
BEGIN_MESSAGE_MAP(CSplashWnd, CWnd)
	//{{AFX_MSG_MAP(CSplashWnd)
	ON_WM_CREATE()
	ON_WM_PAINT()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()


////////////////////////////////////////////////////////////////////////////////
//ShowSplash
//to display the given image on screen
//
BOOL CSplashWnd::ShowSplash()
{
	
	if(fileIsValid)
	{
		if (!Create(AfxGetMainWnd()))
			return false;
		else
		{
			UpdateWindow();
			return true;
		}
	}
	else
	{
		return false;
	}
}


////////////////////////////////////////////////////////////////////////////////
BOOL CSplashWnd::PreTranslateAppMessage(MSG* pMsg)
{
	// If we get a keyboard or mouse message, hide the splash screen.
	if (pMsg->message == WM_KEYDOWN ||
	    pMsg->message == WM_SYSKEYDOWN ||
	    pMsg->message == WM_LBUTTONDOWN ||
	    pMsg->message == WM_RBUTTONDOWN ||
	    pMsg->message == WM_MBUTTONDOWN ||
	    pMsg->message == WM_NCLBUTTONDOWN ||
	    pMsg->message == WM_NCRBUTTONDOWN ||
	    pMsg->message == WM_NCMBUTTONDOWN)
	{
		CloseSplash();
		return TRUE;	// message handled here
	}

	return FALSE;	// message not handled
}


////////////////////////////////////////////////////////////////////////////////


BOOL CSplashWnd::Create(CWnd* pParentWnd /*= NULL*/)
{

	return CreateEx(0,
		AfxRegisterWndClass(0, AfxGetApp()->LoadStandardCursor(IDC_ARROW)),
		NULL, WS_POPUP | WS_VISIBLE, 0, 0, width, height, pParentWnd->GetSafeHwnd(), NULL);
}


////////////////////////////////////////////////////////////////////////////////

void CSplashWnd::CloseSplash()
{

	DestroyWindow();
}


////////////////////////////////////////////////////////////////////////////////


void CSplashWnd::PostNcDestroy()
{

}

////////////////////////////////////////////////////////////////////////////////


int CSplashWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	CenterWindow();

	return 0;
}

////////////////////////////////////////////////////////////////////////////////

void CSplashWnd::OnPaint()
{
	if(fileIsValid)
	{
		CPaintDC dc(this);
		CRect rc(0,0,0,0);;
		pic.Render(&dc, rc);
	}
}



void CSplashWnd::ShowText(LPCTSTR lpStr)
{
	if(fileIsValid)
	{
		Invalidate();
		CPaintDC dc(this);
		dc.SetBkMode(TRANSPARENT);
		SIZE sz;
		sz = (SIZE)dc.GetTextExtent(lpStr,strlen(lpStr));
		dc.TextOut((width-sz.cx)/2,height/2,lpStr);
	}
}



CPicture::CPicture()
{
}

CPicture::~CPicture()
{
}



BOOL CPicture::Load(UINT nIDRes)
{
   HINSTANCE hInst = AfxGetResourceHandle();
   HRSRC hRsrc = ::FindResource(hInst,
      MAKEINTRESOURCE(nIDRes),
      "IMAGE"); 
   if (!hRsrc)
      return FALSE;

  
   DWORD len = SizeofResource(hInst, hRsrc);
   BYTE* lpRsrc = (BYTE*)LoadResource(hInst, hRsrc);
   if (!lpRsrc)
      return FALSE;

  
   CMemFile file(lpRsrc, len);
   BOOL bRet = Load(file);
   FreeResource(hRsrc);
   return bRet;
}


BOOL CPicture::Load(LPCTSTR pszPathName)
{
   CFile file;
   if (!file.Open(pszPathName, CFile::modeRead|CFile::shareDenyWrite))
      return FALSE;
   BOOL bRet = Load(file);
   file.Close();
   return bRet;
}



BOOL CPicture::Load(CFile& file)
{
   CArchive ar(&file, CArchive::load | CArchive::bNoFlushOnDelete);
   return Load(ar);
}


BOOL CPicture::Load(CArchive& ar)
{
   CArchiveStream arcstream(&ar);
   return Load((IStream*)&arcstream);
}


BOOL CPicture::Load(IStream* pstm)
{
   Free();
   HRESULT hr = OleLoadPicture(pstm, 0, FALSE,
      IID_IPicture, (void**)&m_spIPicture);
   ASSERT(SUCCEEDED(hr) && m_spIPicture); 
   return TRUE;
}



CSize CPicture::GetImageSize(CDC* pDC) const
{
   if (!m_spIPicture)
      return CSize(0,0);
   
   LONG hmWidth, hmHeight; 
   m_spIPicture->get_Width(&hmWidth);
   m_spIPicture->get_Height(&hmHeight);
   CSize sz(hmWidth,hmHeight);
   if (pDC==NULL) {
      CWindowDC dc(NULL);
      dc.HIMETRICtoDP(&sz);
   } else {
      pDC->HIMETRICtoDP(&sz);
   }
   return sz;
}


BOOL CPicture::Render(CDC* pDC, CRect rc, LPCRECT prcMFBounds) const
{
   ASSERT(pDC);

   if (rc.IsRectNull()) {
      CSize sz = GetImageSize(pDC);
      rc.right = sz.cx;
      rc.bottom = sz.cy;
   }
   long hmWidth,hmHeight; 
   GetHIMETRICSize(hmWidth, hmHeight);
   m_spIPicture->Render(*pDC, rc.left, rc.top, rc.Width(), rc.Height(),
      0, hmHeight, hmWidth, -hmHeight, prcMFBounds);

   return TRUE;
}