2 Views

[noble]

My application (SDI) currently has two views seperated by a splitter.
The two views (listview and treeview) take up the height of
the frame minus the height of the menu and status
bar of course. I would like to insert another view above both the
listview and treeview that extends the width of the frame.
This can also be done easily.....my question is, how do i create this view so i can place objects on such as checkboxes,
edit boxes, etc......

Another words, the regular gray background of a frame window
that i can place objects on above the listview and treeview.

Thanks for any help

[CornedBee]

Why not rather create a toolbar with the controls you want? It's far less work.

To create the view you'd need a second splitter. The upper pane of this splitter contains your view, the lower contains the splitter that contains the other two views.
Code:

// Assuming the frame wnd class has two CSplitterWnd members.
// m_wndSplitVert and m_wndSplitHorz
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT pCS, CCreateContext* pContext)
{
  if(!m_wndSplitHorz.CreateStatic(this, 2, 1) ||
    !m_wndSplitHorz.CreateView(0,0, RUNTIME_CLASS(CToolView),
      CSize(0,80), pContext) ||
    !m_wndSplitVert.CreateStatic(&m_wndSplitHorz, 1, 2,
      WS_CHILD | WS_VISIBLE, m_wndSplitHorz.IdFromRowCol(1,0)) ||
    !m_wndSplitVert.CreateView(0,0,RUNTIME_CLASS(CYourTreeView),
      CSize(128,0), pContext) ||
    !m_wndSplitVert.CreateView(0,1,RUNTIME_CLASS(CYourListView),
      CSize(0,0), pContext))
    return FALSE;
  return TRUE;
}

But a view is not a good place for a control. Better to create a toolbar with a lot of seperators (you have to edit the resource script manually for this) which you later replace with real controls. This way you can get controls inside a toolbar. I can give you code for this too.

[noble]

thx, before i didn't have access to vs6 but now i do so I'm
probably gonna use a toolbar like you suggested.

thx ;P

[noble]

CornedBee, can you show me or direct me someplace that
explains adding the controls to a toolbar? I found a couple of
different resources that touch on this subject but do not
explain it well.

Thanks

[CornedBee]

Ok.
You need to edit the resource script directly, so load it into an external text editor. Search for your toolbar template and add a SEPERATOR everywhere you want a control (the items are ordered from left to right). Then you need to derive a class from CToolBar. Let's call it CAdvToolBar. Add one member variable for each control you want of the appropriate type (CEditBox, CComboBox, ...). Then add an OnCreate handler (handle the WM_CREATE message) and add code like this:

int CAdvToolbar::OnCreate(LPCREATESTRUCT lpCS)
{
  if(CToolBar::OnCreate(lpCS) == -1)
    return -1;
  // do this for every control:
  SetButtonInfo(index, id, TBBS_SEPERATOR, width);
  CRect rect;
  GetItemRect(index, &rect);
  rect.bottom = rect.top + height;
  m_wndSomeControl.Create(WS_CHILD | WS_VISIBLE | styles,
    rect, this, id);

  return 0;
}

index is the zero-based index of the seperator you want to replace in the toolbar template. You must count it yourself and keep track of changes. Sorry, there is no easy way to do that.
id is the control id you want the control to have. This is the id you can later use to handle messages from this control (in the frame window).
width and height are the dimensions of the control.
style is the style you want the control to have (window styles like borders, control-specific styles (e.g. ES_PASSWORD))

You can also add tooltips and status messages to the control: just define a string resource with the same id as the control. It needs to have the usual format:
Status message\nTooltip message

BTW to replace OnUpdate* functions (you can't use them for non-button controls) override OnUpdateCmdUI and do it manually.

[noble]

MFC only lets me derive a class from CToolBarCtl yuck.

do i have to derive a non-MFC class and name the base class
CToolBar?

[CornedBee]

Probably. This means you can't use the wizard to add message handlers and virtual functions, but I fear there's no other way (the wizard is by no means perfect).

[noble]

sigh, i can't get this to work

SetButtonInfo requires an image where you specified a width

my id is "unidentified" so i added it to the string table (will
that work?)

then i get assertion errors about the button (on the toolbar)
not actually being a button

do you have specific code that you can possibly send that
shows exactly what you did or am i missing something?

[CornedBee]

For separators, which have the style TBBS_SEPARATOR, this function sets the separator's width in pixels to the value stored in iImage.

That seems ok to me. Maybe post your project? Or is it private?

By adding it to the string table, VC++ should add the define to resource.h, so that should be ok (otherwise you'd have to add that define yourself)

Which button? It isn't a button, it's a separator.

I did that once and it worked, but I later realized I don't need it and deleted it again, so I don't have it now, sorry.

[noble]

when i run it, i get an error with an assertion on the VERIFY
line:

void CToolBar::_GetButton(int nIndex, TBBUTTON* pButton) const
{
     CToolBar* pBar = (CToolBar*)this;
     VERIFY(pBar->DefWindowProc(TB_GETBUTTON, nIndex, (LPARAM)pButton));
     // TB_STATE_ENABLED == TBBS_DISABLED so inver it
     pButton->fsState ^= TBSTATE_ENABLED;
}

this is in the bartool.cpp file included in MFC, this is not my file
obviously

[noble]

here's the zipped up project if you need it

it's just a short test project to see if it works, so nothing is
private :P

thx for any help

[noble]

hmmmm, i added it, ,wonder why it didnt show up,

try again?

[noble]

ok well it looks as though it didnt work again

if you would like to see the short code,
PM me and i can possibly email or transfer it to you using
some other medium

thx