Re: Hiding tab control for CTabView

Hi Nenad,

There are some situations where it is useful:
  1.. As long as there is only one tab, you do not need to show it.
  2.. In Full Screen mode you may want to hide the tab.
  3.. Showing/Hiding the tab control may be a user option to get more screen real estate for the view.
cheers,
AR


  ----- Original Message ----- 
  From: Nenad Stefanovic 
  To: [email protected] 
  Sent: Tuesday, May 11, 2010 8:46 AM
  Subject: RE: [wtl] Hiding tab control for CTabView


    
  ShowTabControl() was not designed to be used that way. It is an
  implementation method to hide tab control when there are no views, and show
  it when there are some. Because of that UpdateLayout() doesn't take into
  account situation when a view is visible and tab control is not.

  Fortunately, you can easily override UpdateLayout() to support this, as
  Alain showed below.

  We might add that to the code since it doesn't change anything for the
  "normal" use. But, the real question is: why would you want to use tab view
  with hidden tab control? How is the user supposed to know that there are
  more views?

  Cheers,
  Nenad

  -----Original Message-----
  From: [email protected] [mailto:[email protected]] On Behalf Of Alain
  Rist
  Sent: Monday, May 10, 2010 11:13 PM
  To: [email protected]
  Subject: Re: [wtl] Hiding tab control for CTabView

  Sorry for formatting and missing member :(

  This does it, you may want to file a bug at
  http://sourceforge.net/tracker/?func=add&group_id=109071&atid=652372

  class CMyTabView : public CTabViewImpl<CMyTabView>
  {
  public:
  DECLARE_WND_CLASS_EX(_T("MyTabView"), 0, COLOR_APPWORKSPACE)
  void UpdateLayout()
  {
  RECT rect;
  GetClientRect(&rect);
  const bool bTabVisible = m_tab.IsWindow() && ((m_tab.GetStyle() & 
  WS_VISIBLE) != 0);
  if(bTabVisible)
  m_tab.SetWindowPos(NULL, 0, 0, rect.right - rect.left, 
  m_cyTabHeight, SWP_NOZORDER);
  if(m_nActivePage != -1)
  {
  const INT cyTabHeight = bTabVisible ? m_cyTabHeight : 0;
  ::SetWindowPos(GetPageHWND(m_nActivePage), NULL, 0, cyTabHeight,

  rect.right - rect.left, rect.bottom - rect.top - cyTabHeight, SWP_NOZORDER);
  }
  }
  void ShowTabControl(bool bShow)
  {
  m_tab.ShowWindow(bShow ? SW_SHOWNOACTIVATE : SW_HIDE);
  UpdateLayout();
  }
  };

  cheers,
  AR

  ----- Original Message ----- 
  From: Political
  To: [email protected]
  Sent: Tuesday, May 11, 2010 5:14 AM
  Subject: [wtl] Hiding tab control for CTabView

  I've created an SDI application with CTabView as m_view. In 
  CMainFrame::OnCreate() I add my tab windows to the view and call 
  m_view.ShowTabControl( false ). The tab control does not show in the view, 
  but there is a dark gray bar across the top of the view where the tab 
  control would be shown.

  Is it possible to have client area of CTabView fill the client area of 
  CMainFrame? I noticed there is a switch view in frame article at Code 
  Project, but one of the comments suggested using CTabView instead.

  I'm using the latest WTL (revision 444) in VS2008 SP1 on Windows 7.

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