Пример #1
0
bool CMainFrame::MakeWave(const WAVEGEN_PARMS& Parms)
{
	POSITION	pos = theApp.GetFirstDocTemplatePosition();
	CDocTemplate	*pTpl = theApp.GetNextDocTemplate(pos);
	CWaveShopDoc	*pDoc = DYNAMIC_DOWNCAST(CWaveShopDoc, pTpl->CreateNewDocument());
	if (pDoc == NULL)
		return(FALSE);
	bool	retc, canceled;
	{
		CProgressDlg	ProgDlg;
		if (!ProgDlg.Create())	// create progress dialog
			AfxThrowResourceException();
		ProgDlg.SetWindowText(LDS(IDS_MAIN_GENERATING_AUDIO));
		retc = CWaveGenDlg::MakeWave(Parms, pDoc->m_Wave, &ProgDlg);
		canceled = ProgDlg.Canceled();
	}	// destroy progress dialog
	if (!retc) {	// if generation failed
		if (!canceled)	// if user canceled
			AfxMessageBox(IDS_MAIN_CANT_MAKE_WAVE);
		return(FALSE);
	}
	CDocument	*pEmptyDoc = pTpl->OpenDocumentFile(NULL);	// create new view
	if (pEmptyDoc == NULL || m_View == NULL)
		return(FALSE);
	CString	title = pEmptyDoc->GetTitle();
	pEmptyDoc->RemoveView(m_View);	// remove empty document from view
	pDoc->SetTitle(title);	// copy empty document's title to generated document
	pDoc->AddView(m_View);	// add generated document to view
	m_View->OnInitialUpdate();
	OnActivateView(m_View);
	// view is still linked to empty document's undo manager; must relink
	m_View->SetUndoManager(&pDoc->m_UndoMgr);	// link view to undo manager
	pDoc->m_UndoMgr.SetRoot(m_View);	// link undo manager to view
	return(TRUE);
}
Пример #2
0
void CMainFrame::OnViewChange(UINT nCmdID)
// There is an ON_COMMAND_RANGE message map entry associated with
// OnViewChange:
// ON_COMMAND_RANGE(ID_VIEW_CHANGE1, ID_VIEW_CHANGE2, &OnViewChange)
{
   CView* pViewAdd;
   CView* pViewRemove;
   CDocument* pDoc = GetActiveDocument();

   // cvView1 and cvView2 are enum members defined in my CMainFrame class
   if((nCmdID == ID_VIEW_CHANGE1) && (m_currentView == cvView1))
      return;
   if((nCmdID == ID_VIEW_CHANGE2) && (m_currentView == cvView2))
      return;

   if (nCmdID == ID_VIEW_CHANGE2)
   {
      if (m_pView2 == NULL)
      {
         m_pView1 = GetActiveView();
         m_pView2 = new CMyView2;

         //Note that if OnSize has been overridden in CMyView2 
         //and GetDocument() is used in this override it can 
         //cause assertions and, if the assertions are ignored,
         //cause access violation.

         m_pView2->Create(NULL, NULL, AFX_WS_DEFAULT_VIEW, rectDefault, this, 
            AFX_IDW_PANE_FIRST + 1, NULL);
      }
      pViewAdd = m_pView2;
      pViewRemove = m_pView1;
      m_currentView = cvView2;
   }
   else
   {
      pViewAdd = m_pView1;
      pViewRemove = m_pView2;
      m_currentView = cvView1;
   }

   // Set the child i.d. of the active view to AFX_IDW_PANE_FIRST,
   // so that CFrameWnd::RecalcLayout will allocate to this 
   // "first pane" that portion of   the frame window's client area 
   // not allocated to control   bars.  Set the child i.d. of the 
   // other view to anything other than AFX_IDW_PANE_FIRST; this
   // examples switches the child id's of the two views.

   int nSwitchChildID = pViewAdd->GetDlgCtrlID();
   pViewAdd->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
   pViewRemove->SetDlgCtrlID(nSwitchChildID);

   // Show the newly active view and hide the inactive view.

   pViewAdd->ShowWindow(SW_SHOW);
   pViewRemove->ShowWindow(SW_HIDE);

   // Connect the newly active view to the document, and
   // disconnect the inactive view.
   pDoc->AddView(pViewAdd);
   pDoc->RemoveView(pViewRemove);

   SetActiveView(pViewAdd);
   RecalcLayout();
}