keyboard event not called on subclass of wxScrolledWindow (on mac)

[Riccardo Cohen]

The backtrace for the scroll bar is :

#0  wxControlContainerBase::HasAnyFocusableChildren
#1  0x001fd2d5 in wxControlContainerBase::UpdateCanFocus
#2  0x00065322 in wxPanel::AddChild
#3  0x0003fa64 in wxWindow::MacPostControlCreate
#4  0x000b6b79 in wxScrollBar::Create
#5  0x001f7158 in wxScrollBar::wxScrollBar
#6  0x00041eee in wxWindow::MacCreateScrollBars
#7  0x0004226d in wxWindow::Create
#8  0x0006547f in wxPanel::Create
#9  0x0004dce3 in wxScrolledWindow::Create
#10 0x001e5990 in wxScrolledWindow::wxScrolledWindow
#11 0x00002686 in artwx::artwx

and when I stop in IsClientAreaChild(child), I find :

(gdb) p this->m_hScrollBar
$6 = (class wxScrollBar *) 0x0

which seems to make MacIsWindowScrollbar answers "No".

when I stop at MacPostControlCreate, and try to track the AddChild call:

#0  wxWindowBase::AddChild (this=0x6017800, child=0x5931210) at 
../src/common/wincmn.cpp:915
#1  0x00065312 in wxPanel::AddChild (this=0x6017800, child=0x5931210) at 
../src/generic/panelg.cpp:100


panelg.cpp:100     WX_DELEGATE_TO_CONTROL_CONTAINER(wxPanel, wxWindow)

So I don't know when m_hScrollBar is updated.



Vadim Zeitlin wrote:
> On Mon, 24 Sep 2007 16:20:48 +0200 Riccardo Cohen <rcohen at articque.com> wrote:
> 
> RC> first time it returns true :
> RC> #0  wxControlContainerBase::HasAnyFocusableChildren
> RC> #1  0x001fd2d5 in wxControlContainerBase::UpdateCanFocus
> RC> #2  0x00058392 in wxTopLevelWindowBase::AddChild
> RC> #3  0x0003fa64 in wxWindow::MacPostControlCreate
> RC> #4  0x000421bc in wxWindow::Create
> RC> #5  0x0006547f in wxPanel::Create
> RC> #6  0x0004dce3 in wxScrolledWindow::Create
> RC> #7  0x001e5990 in wxScrolledWindow::wxScrolledWindow
> RC> #8  0x00002686 in artwx::artwx
> RC> 
> RC> it enters 2 more times in this function (for my class) returning always 
> RC> true, (it is for the scrollbars)
> 
>  Do you see how does it happen? IsClientAreaChild() implementation in
> wx/mac/carbon/window.h explicitly checks for !MacIsWindowScrollbar() so I
> don't understand why it doesn't skip the scrollbars as it's intended to.
> Anyhow, this is clearly the bug which must be fixed...
> 
>  Regards,
> VZ
> 

-- 
Très cordialement,

Riccardo Cohen
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