#include "wx/msw/private.h"
-#if wxUSE_THREADS
- #include "wx/thread.h"
-
- // define the array of MSG strutures
- WX_DECLARE_OBJARRAY(MSG, wxMsgArray);
-
- #include "wx/arrimpl.cpp"
-
- WX_DEFINE_OBJARRAY(wxMsgArray);
-#endif // wxUSE_THREADS
-
#if wxUSE_TOOLTIPS
#include "wx/tooltip.h"
#endif // wxUSE_TOOLTIPS
#include "wx/msw/wrapcctl.h"
+// For MB_TASKMODAL
+#ifdef __WXWINCE__
+#include "wx/msw/wince/missing.h"
+#endif
+
#if (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) && \
!defined(__CYGWIN__) && !defined(__DIGITALMARS__) && !defined(__WXWINCE__) && \
- (!defined(_MSC_VER) || (_MSC_VER > 1100))
+ (!defined(_MSC_VER) || (_MSC_VER > 1100))
#include <shlwapi.h>
#endif
extern void wxSetKeyboardHook(bool doIt);
#endif
-MSG s_currentMsg;
-
// NB: all "NoRedraw" classes must have the same names as the "normal" classes
// with NR suffix - wxWindow::MSWCreate() supposes this
const wxChar *wxCanvasClassName = wxT("wxWindowClass");
bool wxGUIAppTraits::DoMessageFromThreadWait()
{
- return !wxTheApp || wxTheApp->DoMessage();
+ // we should return false only if the app should exit, i.e. only if
+ // Dispatch() determines that the main event loop should terminate
+ return !wxTheApp || wxTheApp->Dispatch();
}
wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo()
{
- static wxToolkitInfo info;
+ static wxToolkitInfo info;
wxToolkitInfo& baseInfo = wxAppTraits::GetToolkitInfo();
info.versionMajor = baseInfo.versionMajor;
info.versionMinor = baseInfo.versionMinor;
#if wxUSE_OLE || wxUSE_DRAG_AND_DROP
-#ifdef __WIN16__
- // for OLE, enlarge message queue to be as large as possible
- int iMsg = 96;
- while (!SetMessageQueue(iMsg) && (iMsg -= 8))
- ;
-#endif // Win16
-
#if wxUSE_OLE
// we need to initialize OLE library
#ifdef __WXWINCE__
wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100);
- // This is to foil optimizations in Visual C++ that throw out dummy.obj.
- // PLEASE DO NOT ALTER THIS.
-#if defined(__VISUALC__) && defined(__WIN16__) && !defined(WXMAKINGDLL)
- extern char wxDummyChar;
- if (wxDummyChar) wxDummyChar++;
-#endif
-
#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
wxSetKeyboardHook(TRUE);
#endif
void wxApp::CleanUp()
{
+ // all objects pending for deletion must be deleted first, otherwise we
+ // would crash when they use wxWinHandleHash (and UnregisterWindowClasses()
+ // call wouldn't succeed as long as any windows still exist), so call the
+ // base class method first and only then do our clean up
+ wxAppBase::CleanUp();
+
#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
wxSetKeyboardHook(FALSE);
#endif
delete wxWinHandleHash;
wxWinHandleHash = NULL;
-
- wxAppBase::CleanUp();
}
// ----------------------------------------------------------------------------
delete [] argv;
}
-bool wxApp::Initialized()
-{
-#ifndef _WINDLL
- if (GetTopWindow())
- return TRUE;
- else
- return FALSE;
-#else // Assume initialized if DLL (no way of telling)
- return TRUE;
-#endif
-}
-
-/*
- * 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 rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0);
- if ( rc == 0 )
- {
- // got WM_QUIT
- m_keepGoing = FALSE;
-
- return FALSE;
- }
- else if ( rc == -1 )
- {
- // should never happen, but let's test for it nevertheless
- wxLogLastError(wxT("GetMessage"));
- }
- else
- {
-#if wxUSE_THREADS
- wxASSERT_MSG( wxThread::IsMain(),
- wxT("only the main thread can process Windows messages") );
-
- static bool s_hadGuiLock = TRUE;
- static wxMsgArray s_aSavedMessages;
-
- // 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() )
- {
- s_hadGuiLock = FALSE;
-
- // leave out WM_COMMAND messages: too dangerous, sometimes
- // the message will be processed twice
- if ( !wxIsWaitingForThread() ||
- s_currentMsg.message != WM_COMMAND )
- {
- s_aSavedMessages.Add(s_currentMsg);
- }
-
- 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 ( !s_hadGuiLock )
- {
- s_hadGuiLock = TRUE;
-
- size_t count = s_aSavedMessages.GetCount();
- for ( size_t n = 0; n < count; n++ )
- {
- MSG& msg = s_aSavedMessages[n];
-
- DoMessage((WXMSG *)&msg);
- }
-
- s_aSavedMessages.Empty();
- }
- }
-#endif // wxUSE_THREADS
-
- // Process the message
- DoMessage((WXMSG *)&s_currentMsg);
- }
-
- return TRUE;
-}
-
-void wxApp::DoMessage(WXMSG *pMsg)
-{
- if ( !ProcessMessage(pMsg) )
- {
- ::TranslateMessage((MSG *)pMsg);
- ::DispatchMessage((MSG *)pMsg);
- }
-}
-
-/*
- * 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_keepGoing = TRUE;
-
- while ( m_keepGoing )
- {
-#if wxUSE_THREADS
- wxMutexGuiLeaveOrEnter();
-#endif // wxUSE_THREADS
-
- while ( !Pending() && ProcessIdle() )
- ;
-
- // a message came or no more idle processing to do
- DoMessage();
- }
-
- return s_currentMsg.wParam;
-}
-
-void wxApp::ExitMainLoop()
-{
- // this will set m_keepGoing to FALSE a bit later
- ::PostQuitMessage(0);
-}
-
-bool wxApp::Pending()
-{
- return ::PeekMessage(&s_currentMsg, 0, 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 *wxmsg)
-{
- MSG *msg = (MSG *)wxmsg;
- HWND hwnd = msg->hwnd;
- wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd);
-
- // this may happen if the event occured in a standard modeless dialog (the
- // only example of which I know of is the find/replace dialog) - then call
- // IsDialogMessage() to make TAB navigation in it work
- if ( !wndThis )
- {
- // we need to find the dialog containing this control as
- // IsDialogMessage() just eats all the messages (i.e. returns TRUE for
- // them) if we call it for the control itself
- while ( hwnd && ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD )
- {
- hwnd = ::GetParent(hwnd);
- }
-
- return hwnd && ::IsDialogMessage(hwnd, msg) != 0;
- }
-
-#if wxUSE_TOOLTIPS
- // we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to
- // popup the tooltip bubbles
- if ( (msg->message == WM_MOUSEMOVE) )
- {
- wxToolTip *tt = wndThis->GetToolTip();
- if ( tt )
- {
- tt->RelayEvent(wxmsg);
- }
- }
-#endif // wxUSE_TOOLTIPS
-
- // allow the window to prevent certain messages from being
- // translated/processed (this is currently used by wxTextCtrl to always
- // grab Ctrl-C/V/X, even if they are also accelerators in some parent)
- if ( !wndThis->MSWShouldPreProcessMessage(wxmsg) )
- {
- return FALSE;
- }
-
- // try translations first: the accelerators override everything
- wxWindow *wnd;
-
- for ( wnd = wndThis; wnd; wnd = wnd->GetParent() )
- {
- if ( wnd->MSWTranslateMessage(wxmsg))
- return TRUE;
-
- // stop at first top level window, i.e. don't try to process the key
- // strokes originating in a dialog using the accelerators of the parent
- // frame - this doesn't make much sense
- if ( wnd->IsTopLevel() )
- break;
- }
-
- // now try the other hooks (kbd navigation is handled here): we start from
- // wndThis->GetParent() because wndThis->MSWProcessMessage() was already
- // called above
- for ( wnd = wndThis->GetParent(); wnd; wnd = wnd->GetParent() )
- {
- if ( wnd->MSWProcessMessage(wxmsg) )
- return TRUE;
- }
-
- // no special preprocessing for this message, dispatch it normally
- return FALSE;
-}
-
-// this is a temporary hack and will be replaced by using wxEventLoop in the
-// future
-//
-// it is needed to allow other event loops (currently only one: the modal
-// dialog one) to reset the OnIdle() semaphore because otherwise OnIdle()
-// wouldn't do anything while a modal dialog shown from OnIdle() call is shown.
-bool wxIsInOnIdleFlag = FALSE;
+// ----------------------------------------------------------------------------
+// wxApp idle handling
+// ----------------------------------------------------------------------------
void wxApp::OnIdle(wxIdleEvent& event)
{
- // Avoid recursion (via ProcessEvent default case)
- if ( wxIsInOnIdleFlag )
- return;
-
- wxIsInOnIdleFlag = TRUE;
-
wxAppBase::OnIdle(event);
#if wxUSE_DC_CACHEING
if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON))
wxDC::ClearCache();
#endif // wxUSE_DC_CACHEING
-
- wxIsInOnIdleFlag = FALSE;
}
void wxApp::WakeUpIdle()
}
}
+// ----------------------------------------------------------------------------
+// other wxApp event hanlders
+// ----------------------------------------------------------------------------
+
void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
{
if (GetTopWindow())
}
}
+// ----------------------------------------------------------------------------
+// miscellaneous
+// ----------------------------------------------------------------------------
+
/* static */
int wxApp::GetComCtl32Version()
{
wxMutexGuiLeaveOrEnter();
#endif // wxUSE_THREADS
- if ( !wxTheApp->DoMessage() )
+ if ( !wxTheApp->Dispatch() )
break;
}
return TRUE;
}
+#if wxUSE_EXCEPTIONS
+
+// ----------------------------------------------------------------------------
+// exception handling
+// ----------------------------------------------------------------------------
+
+bool wxApp::OnExceptionInMainLoop()
+{
+ // ask the user about what to do: use the Win32 API function here as it
+ // could be dangerous to use any wxWindows code in this state
+ switch (
+ ::MessageBox
+ (
+ NULL,
+ _T("An unhandled exception occurred. Press \"Abort\" to \
+terminate the program,\r\n\
+\"Retry\" to exit the program normally and \"Ignore\" to try to continue."),
+ _T("Unhandled exception"),
+ MB_ABORTRETRYIGNORE |
+ MB_ICONERROR|
+ MB_TASKMODAL
+ )
+ )
+ {
+ case IDABORT:
+ throw;
+
+ default:
+ wxFAIL_MSG( _T("unexpected MessageBox() return code") );
+ // fall through
+
+ case IDRETRY:
+ return false;
+
+ case IDIGNORE:
+ return true;
+ }
+}
+
+#endif // wxUSE_EXCEPTIONS
projects / wxWidgets.git / blobdiff