-bool wxApp::Initialized()
-{
- if (GetTopWindow())
- return TRUE;
- else
- return FALSE;
-}
-
-//
-// Get and process a message, returning FALSE if WM_QUIT
-// received (and also set the flag telling the app to exit the main loop)
-//
-bool wxApp::DoMessage()
-{
- BOOL bRc = ::WinGetMsg(vHabmain, &m_vMsg, HWND(NULL), 0, 0);
-
- if (bRc == 0)
- {
- // got WM_QUIT
- m_bKeepGoing = FALSE;
- return FALSE;
- }
- else if (bRc == -1)
- {
- // should never happen, but let's test for it nevertheless
- wxLogLastError("GetMessage");
- }
- else
- {
-#if wxUSE_THREADS
- wxASSERT_MSG( wxThread::IsMain()
- ,wxT("only the main thread can process Windows messages")
- );
-
- static bool sbHadGuiLock = TRUE;
- static wxMsgArray svSavedMessages;
-
- //
- // if a secondary thread owns is doing GUI calls, save all messages for
- // later processing - we can't process them right now because it will
- // lead to recursive library calls (and we're not reentrant)
- //
- if (!wxGuiOwnedByMainThread())
- {
- sbHadGuiLock = FALSE;
-
- // leave out WM_COMMAND messages: too dangerous, sometimes
- // the message will be processed twice
- if ( !wxIsWaitingForThread() ||
- svCurrentMsg.msg != WM_COMMAND )
- {
- svSavedMessages.Add(svCurrentMsg);
- }
- return TRUE;
- }
- else
- {
- //
- // have we just regained the GUI lock? if so, post all of the saved
- // messages
- //
- // FIXME of course, it's not _exactly_ the same as processing the
- // messages normally - expect some things to break...
- //
- if (!sbHadGuiLock )
- {
- sbHadGuiLock = TRUE;
-
- size_t nCount = svSavedMessages.Count();
-
- for (size_t n = 0; n < nCount; n++)
- {
- QMSG vMsg = svSavedMessages[n];
-
- if ( !ProcessMessage((WXMSG *)&vMsg) )
- {
- ::WinDispatchMsg(vHabmain, &vMsg);
- }
- }
- svSavedMessages.Empty();
- }
- }
-#endif // wxUSE_THREADS
-
- // Process the message
- if (!ProcessMessage((WXMSG *)&svCurrentMsg) )
- {
- ::WinDispatchMsg(vHabmain, (PQMSG)&svCurrentMsg);
- }
- }
- return TRUE;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// Keep trying to process messages until WM_QUIT
-// received.
-//
-// If there are messages to be processed, they will all be
-// processed and OnIdle will not be called.
-// When there are no more messages, OnIdle is called.
-// If OnIdle requests more time,
-// it will be repeatedly called so long as there are no pending messages.
-// A 'feature' of this is that once OnIdle has decided that no more processing
-// is required, then it won't get processing time until further messages
-// are processed (it'll sit in DoMessage).
-//
-//////////////////////////////////////////////////////////////////////////////
-int wxApp::MainLoop()
-{
- m_bKeepGoing = TRUE;
-
- while (m_bKeepGoing)
- {
-#if wxUSE_THREADS
- wxMutexGuiLeaveOrEnter();
-#endif // wxUSE_THREADS
- while (!::WinPeekMsg(vHabmain, &svCurrentMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) &&
- ProcessIdle() )
- {
- }
- DoMessage();
- }
- return (int)svCurrentMsg.mp1;
-}
-
-//
-// Returns TRUE if more time is needed.
-//
-bool wxApp::ProcessIdle()
-{
- wxIdleEvent vEvent;
-
- vEvent.SetEventObject(this);
- ProcessEvent(vEvent);
- return vEvent.MoreRequested();
-}
-
-#if wxUSE_THREADS
-void wxApp::ProcessPendingEvents()
-{
- wxNode* pNode = wxPendingEvents->First();
- wxCriticalSectionLocker vLocker(*wxPendingEventsLocker);
-
- while (pNode)
- {
- wxEvtHandler* pHandler = (wxEvtHandler *)pNode->Data();
- pHandler->ProcessPendingEvents();
-
- delete pNode;
- pNode = wxPendingEvents->First();
- }
-}
-#endif
-
-void wxApp::ExitMainLoop()
-{
- m_bKeepGoing = FALSE;
-}
-
-bool wxApp::Pending()
-{
- return (::WinPeekMsg(vHabmain, (PQMSG)&svCurrentMsg, (HWND)NULL, 0, 0, PM_NOREMOVE) != 0);
-}
-
-void wxApp::Dispatch()
-{
- DoMessage();
-}
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// Give all windows a chance to preprocess
-// the message. Some may have accelerator tables, or have
-// MDI complications.
-//
-//////////////////////////////////////////////////////////////////////////////
-bool wxApp::ProcessMessage(
- WXMSG* pWxmsg
-)
-{
- QMSG* vMsg = (PQMSG)pWxmsg;
- HWND hWnd = vMsg->hwnd;
- wxWindow* pWndThis = wxFindWinFromHandle((WXHWND)hWnd);
- wxWindow* pWnd;
-
- //
- // for some composite controls (like a combobox), wndThis might be NULL
- // because the subcontrol is not a wxWindow, but only the control itself
- // is - try to catch this case
- //
- while (hWnd && !pWndThis)
- {
- hWnd = ::WinQueryWindow(hWnd, QW_PARENT);
- pWndThis = wxFindWinFromHandle((WXHWND)hWnd);
- }
-
- // Anyone for a non-translation message? Try youngest descendants first.
- for (pWnd = pWndThis; pWnd; pWnd = pWnd->GetParent())
- {
- if (pWnd->OS2ProcessMessage(pWxmsg))
- return TRUE;
- }
- return FALSE;
-}
projects / wxWidgets.git / blobdiff