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Use two step creation of wxListHeaderWindow to avoid reentrancy under OSX.

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This improves the solution of the problem already solved in r74197 by
separating setting of m_headerWin variable from the window creation instead of
using an explicit recursion check.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74231 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2013-06-13 13:57:28 +00:00
parent cc33ae725d
commit 1c25a4c2ae
2 changed files with 29 additions and 28 deletions
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17
include/wx/generic/private/listctrl.h
View File

@ -336,13 +336,16 @@ protected:
public:
wxListHeaderWindow();
wxListHeaderWindow( wxWindow *win,
wxWindowID id,
wxListMainWindow *owner,
const wxPoint &pos = wxDefaultPosition,
const wxSize &size = wxDefaultSize,
long style = 0,
const wxString &name = wxT("wxlistctrlcolumntitles") );
// We provide only Create(), not the ctor, because we need to create the
// C++ object before creating the window, see the explanations in
// CreateOrDestroyHeaderWindowAsNeeded()
bool Create( wxWindow *win,
wxWindowID id,
wxListMainWindow *owner,
const wxPoint &pos = wxDefaultPosition,
const wxSize &size = wxDefaultSize,
long style = 0,
const wxString &name = wxT("wxlistctrlcolumntitles") );
virtual ~wxListHeaderWindow();

40
src/generic/listctrl.cpp
View File

@ -952,15 +952,17 @@ wxListHeaderWindow::wxListHeaderWindow()
m_resizeCursor = NULL;
}
wxListHeaderWindow::wxListHeaderWindow( wxWindow *win,
wxWindowID id,
wxListMainWindow *owner,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString &name )
: wxWindow( win, id, pos, size, style, name )
bool wxListHeaderWindow::Create( wxWindow *win,
wxWindowID id,
wxListMainWindow *owner,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString &name )
{
if ( !wxWindow::Create(win, id, pos, size, style, name) )
return false;
Init();
m_owner = owner;
@ -978,6 +980,8 @@ wxListHeaderWindow::wxListHeaderWindow( wxWindow *win,
if (!m_hasFont)
SetOwnFont( wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT ));
#endif
return true;
}
wxListHeaderWindow::~wxListHeaderWindow()
@ -4509,18 +4513,13 @@ void wxGenericListCtrl::CreateOrDestroyHeaderWindowAsNeeded()
if (needs_header)
{
// since there is no separate Create method for the wxListHeaderWindow
// we have to guard against reentrancy which happens via new wxListHeaderWindow ->
// wxNavigationEnabled::AddChild -> ToggleWindowStyle -> SetWindowStyleFlag
// since has_header is still false then
static bool blockreentrancy = false;
if ( blockreentrancy )
return;
blockreentrancy = true;
m_headerWin = new wxListHeaderWindow
// Notice that we must initialize m_headerWin first, and create the
// real window only later, so that the test in the beginning of the
// function blocks repeated creation of the header as it could happen
// before via wxNavigationEnabled::AddChild() -> ToggleWindowStyle() ->
// SetWindowStyleFlag().
m_headerWin = new wxListHeaderWindow();
m_headerWin->Create
(
this, wxID_ANY, m_mainWin,
wxPoint(0,0),
@ -4531,7 +4530,6 @@ void wxGenericListCtrl::CreateOrDestroyHeaderWindowAsNeeded()
),
wxTAB_TRAVERSAL
);
blockreentrancy = false;
#if defined( __WXMAC__ )
static wxFont font( wxOSX_SYSTEM_FONT_SMALL );