Best way to toggle between views

[Salvadoravi]

Hi all,

I have a Dialog project and I am loading a form view inside a frame:

int CMyDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    m_pFrame = (CFrameWnd*)RUNTIME_CLASS(CFrameWnd)->CreateObject();  
    m_pFrame->CreateEx(0, NULL, NULL, WS_CHILD, rc, this, AFX_IDW_PANE_FIRST, NULL); 

    CCreateContext ccc;
    ccc.m_pNewViewClass   = RUNTIME_CLASS(CHtmlView);
    ccc.m_pCurrentDoc     = NULL;
    ccc.m_pNewDocTemplate = NULL;
    ccc.m_pLastView       = NULL;
    ccc.m_pCurrentFrame   = NULL;
			
    m_pMyFirstView = (CMyFirstView*)m_pFrame->CreateView(&ccc);

Everything works fine and I can load the view with no problems.

Now I want to toggle between two different views when a buttons is clicked.
So I've extended the code to:

int CMyDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
    m_pFrame = (CFrameWnd*)RUNTIME_CLASS(CFrameWnd)->CreateObject();  
    m_pFrame->CreateEx(0, NULL, NULL, WS_CHILD, rc, this, AFX_IDW_PANE_FIRST, NULL); 

    CCreateContext ccc;
    ccc.m_pNewViewClass   = RUNTIME_CLASS(CHtmlView);
    ccc.m_pCurrentDoc     = NULL;
    ccc.m_pNewDocTemplate = NULL;
    ccc.m_pLastView       = NULL;
    ccc.m_pCurrentFrame   = NULL;
			
    m_pMyFirstView = (CMyFirstView*)m_pFrame->CreateView(&ccc);

    ccc.m_pNewViewClass   = RUNTIME_CLASS(CNoEmailViewForm);
    ccc.m_pCurrentDoc     = NULL;
    ccc.m_pNewDocTemplate = NULL;
    ccc.m_pLastView       = NULL;
    ccc.m_pCurrentFrame   = NULL;
			
    m_pMySecondView = (CMySecondView*)m_pFrame->CreateView(&ccc);
}

void CMyDlg::OnBnClickedButton()
{
    if (m_bFirst)
    {
        m_pMySecondView->ShowWindow(SW_SHOW);
        m_pMyFirstView ->ShowWindow(SW_HIDE);
        m_bFirst = FALSE;
    }
    else
    {
        m_pMySecondView->ShowWindow(SW_HIDE);
        m_pMyFirstView ->ShowWindow(SW_SHOW);
        m_bFirst = TRUE;
    }
}

This again works BUT I'm not sure if this is the correct way to do it.
I have a feeling that I need to do something with m_pLastView (CCreateContext).

Any advice?

Thank you

This again

[GCDEF]

Hi all,

I have a Dialog project and I am loading a form view inside a frame:

I stopped reading there. That sounds like a bad plan. While bucking the doc/view framework can be done, it isn't always easy and you should have a really good reason for doing it.

[Salvadoravi]

Thanks GCDEF,

I'll take a step back.

The reason why I'm implementing it in the way I've described above is because I need to extend a fully mature dialog program that probably cannot be converted into a non dialog project (and if it somehow can I assume that it will take forever).

My Goal:

----------------------------------------------------------------
| Existings Dialog with loads of custom controls                |
|                                                               |
|                                                               |
----------------------------------------------------------------
|                                  |                            |
|  [extensions] Adding a splitter  |                            |
|                                  |                            |
|      to load the views           |                            |
|                                  |                            | 
|                                  |                            |
|           (CHTMLEditView)        |      (CHTMLView)           |
|                                  |                            |
|---------------------------------------------------------------

Surprisingly it works fine.
My next step is to add functionality to load a single view as described in my above question.

Any advice will be appreciated!!

[VictorN]

... I need to extend a fully mature dialog program that probably cannot be converted into a non dialog project (and if it somehow can I assume that it will take forever).

There is no any "dialog program" that cannot be converted into a non dialog project. Period.

[Igor Vartanov]

After the "Period" I would add "With enough people, time and money."