onfilesaveas.txt

这是机械工业张德丰《MATLAB与外部程序接口编程》随书源码

void CDipDoc::OnfileSaveAs()
{
	//TODO::Add your command handler code here
	static int nIndex=1;
	CFileDialog DialogSaveAs(FALSE,NULL,m_pDibObject->GetImageName(),OFN_HIDEREADONLY,szFilter);
    DialogSaveAs.m_ofn.nFilterIndex=(DWORD)nIndex;
	if(DialogSaveAs.DoModal()==IDOK)
	{
		CMainFram*pMainFram=(CMainFrame*)AfxGetMainWnd();
		CChildFrame*pChildFrame=(CChildFrame*)pMainFrame->MDIGetActive();
		CDipView*pDipView=(CDipView*)pChildFrame->GetActiveFrame();
		nIndex=(int)DialogSaveAs.m_ofn.nFilterIndex;
		if(nIndex==5)
		{
			if(m_pDibObject->GetNumBits()!=24)
			{
				AfxMessageBox("必须是24位真彩色图像才能存为JPEG格式!");
				return;
			}
		}
		if(m_pDibObject!=NULL)
		{
			CString strPathName=DialogSaveAs.GetPathName();
			int nFindIndex=strPathName.Find(".");
			if(nFindIndex!=-1)
				strPathName=strPathName.Left(nFindIndex);
			strPathName+=CDibObject::szExtensions[nIndex-1];
			//m_pDibObject->ProcessImageHeader();
			//m_pDibObject->ProcessPalette();
			m_pDibObject->Save(strPathName);
			CString strFileName=DialogSaveAs.GetFileName();
			nFindIndex=strFileName.Find(".");
			if(nFindIndex!=-1)
				strFileName=strFileName.Left(nFindIndex);
			strFileName+=CDibObject::szExtensions[nIndex-1];
			pChildFrame->SetWindowText(strFileName);
			SetPathName(strPathName);
			if(nIndex==5)
			{
				m_pDibObject->Load(strPathName);
				pDipView->InvalidateRect(NULL,FALSE);
				pDipView->UpdateWindow();
			}
		}
	}
}