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added SetCriticalWindow() and AllowProcessing(): this allows to freeze all events except those for the specified window

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34861 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2005-07-15 22:57:49 +00:00
parent a393585a1e
commit a7b7500c4f
2 changed files with 52 additions and 5 deletions
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30
src/msw/evtloop.cpp
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@@ -85,6 +85,7 @@ private:
// ============================================================================
wxEventLoop *wxEventLoopBase::ms_activeLoop = NULL;
wxWindow *wxEventLoop::ms_winCritical = NULL;
// ----------------------------------------------------------------------------
// ctor/dtor
@@ -111,10 +112,24 @@ void wxEventLoop::ProcessMessage(WXMSG *msg)
}
}
bool wxEventLoop::IsChildOfCriticalWindow(wxWindow *win)
{
while ( win )
{
if ( win == ms_winCritical )
return true;
win = win->GetParent();
}
return false;
}
bool wxEventLoop::PreProcessMessage(WXMSG *msg)
{
HWND hwnd = msg->hwnd;
wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
wxWindow * const wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
wxWindow *wnd;
// this may happen if the event occurred in a standard modeless dialog (the
// only example of which I know of is the find/replace dialog) - then call
@@ -132,6 +147,17 @@ bool wxEventLoop::PreProcessMessage(WXMSG *msg)
return hwnd && ::IsDialogMessage(hwnd, msg) != 0;
}
if ( !AllowProcessing(wndThis) )
{
// not a child of critical window, so we eat the event but take care to
// stop an endless stream of WM_PAINTs which would have resulted if we
// didn't validate the invalidated part of the window
if ( msg->message == WM_PAINT )
::ValidateRect(hwnd, NULL);
return true;
}
#if wxUSE_TOOLTIPS
// we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
// popup the tooltip bubbles
@@ -154,8 +180,6 @@ bool wxEventLoop::PreProcessMessage(WXMSG *msg)
}
// try translations first: the accelerators override everything
wxWindow *wnd;
for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
{
if ( wnd->MSWTranslateMessage((WXMSG *)msg))