X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/94a6f0f8d654d41867e85447432db5b88c1fd445..38647faa5a6cecd87ed36f8e5660fc5462f38bfc:/src/gtk/app.cpp diff --git a/src/gtk/app.cpp b/src/gtk/app.cpp index db8547b840..8932e2198d 100644 --- a/src/gtk/app.cpp +++ b/src/gtk/app.cpp @@ -7,14 +7,19 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "app.h" #endif #ifdef __VMS -#include +// vms_jackets.h should for proper working be included before anything else +# include +#undef ConnectionNumber #endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + #include "wx/app.h" #include "wx/gdicmn.h" #include "wx/utils.h" @@ -25,13 +30,15 @@ #include "wx/settings.h" #include "wx/dialog.h" #include "wx/msgdlg.h" - -#if wxUSE_WX_RESOURCES - #include "wx/resource.h" -#endif - +#include "wx/file.h" +#include "wx/filename.h" #include "wx/module.h" #include "wx/image.h" +#include "wx/thread.h" + +#ifdef __WXGPE__ +#include +#endif #ifdef __WXUNIVERSAL__ #include "wx/univ/theme.h" @@ -43,25 +50,40 @@ #endif #include -#if defined(__DARWIN__) -// FIXME: select must be used instead of poll (GD) -#elif defined(__VMS) -# include -#else -# include -#endif + +#ifdef HAVE_POLL + #if defined(__VMS) + #include + #else + // bug in the OpenBSD headers: at least in 3.1 there is no extern "C" + // in neither poll.h nor sys/poll.h which results in link errors later + #ifdef __OPENBSD__ + extern "C" + { + #endif + + #include + + #ifdef __OPENBSD__ + }; + #endif + #endif // platform +#else // !HAVE_POLL + // we implement poll() ourselves using select() which is supposed exist in + // all modern Unices + #include + #include + #include +#endif // HAVE_POLL/!HAVE_POLL + #include "wx/gtk/win_gtk.h" #include - //----------------------------------------------------------------------------- // global data //----------------------------------------------------------------------------- -wxApp *wxTheApp = (wxApp *) NULL; -wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL; - bool g_mainThreadLocked = FALSE; gint g_pendingTag = 0; @@ -75,14 +97,9 @@ extern bool g_isIdle; void wxapp_install_idle_handler(); -//----------------------------------------------------------------------------- -// wxExit -//----------------------------------------------------------------------------- - -void wxExit() -{ - gtk_main_quit(); -} +#if wxUSE_THREADS +static wxMutex gs_idleTagsMutex; +#endif //----------------------------------------------------------------------------- // wxYield @@ -115,14 +132,9 @@ bool wxApp::Yield(bool onlyIfNeeded) wxIsInsideYield = TRUE; - if (!g_isIdle) - { - // We need to remove idle callbacks or the loop will - // never finish. - gtk_idle_remove( m_idleTag ); - m_idleTag = 0; - g_isIdle = TRUE; - } + // We need to remove idle callbacks or the loop will + // never finish. + wxTheApp->RemoveIdleTag(); // disable log flushing from here because a call to wxYield() shouldn't // normally result in message boxes popping up &c @@ -151,20 +163,30 @@ bool wxApp::Yield(bool onlyIfNeeded) // wxWakeUpIdle //----------------------------------------------------------------------------- -void wxWakeUpIdle() +// RR/KH: The wxMutexGui calls are not needed on GTK2 according to +// the GTK faq, http://www.gtk.org/faq/#AEN500 +// The calls to gdk_threads_enter() and leave() are specifically noted +// as not being necessary. The MutexGui calls are still left in for GTK1. +// Eliminating the MutexGui calls fixes the long-standing "random" lockup +// when using wxPostEvent (which calls WakeUpIdle) from a thread. + +void wxApp::WakeUpIdle() { +#ifndef __WXGTK20__ #if wxUSE_THREADS if (!wxThread::IsMain()) wxMutexGuiEnter(); -#endif +#endif // wxUSE_THREADS_ +#endif // __WXGTK2__ - if (g_isIdle) - wxapp_install_idle_handler(); + wxapp_install_idle_handler(); +#ifndef __WXGTK20__ #if wxUSE_THREADS if (!wxThread::IsMain()) wxMutexGuiLeave(); -#endif +#endif // wxUSE_THREADS_ +#endif // __WXGTK2__ } //----------------------------------------------------------------------------- @@ -187,7 +209,12 @@ static gint wxapp_pending_callback( gpointer WXUNUSED(data) ) // Sent idle event to all who request them. wxTheApp->ProcessPendingEvents(); - g_pendingTag = 0; + { +#if wxUSE_THREADS + wxMutexLocker lock(gs_idleTagsMutex); +#endif + g_pendingTag = 0; + } // Flush the logged messages if any. #if wxUSE_LOG @@ -216,8 +243,12 @@ static gint wxapp_idle_callback( gpointer WXUNUSED(data) ) // But repaint the assertion message if necessary if (wxTopLevelWindows.GetCount() > 0) { - wxWindow* win = (wxWindow*) wxTopLevelWindows.Last()->Data(); + wxWindow* win = (wxWindow*) wxTopLevelWindows.GetLast()->GetData(); +#ifdef __WXGTK20__ + if (win->IsKindOf(CLASSINFO(wxMessageDialog))) +#else if (win->IsKindOf(CLASSINFO(wxGenericMessageDialog))) +#endif win->OnInternalIdle(); } return TRUE; @@ -231,8 +262,13 @@ static gint wxapp_idle_callback( gpointer WXUNUSED(data) ) // Indicate that we are now in idle mode and event handlers // will have to reinstall the idle handler again. - g_isIdle = TRUE; - wxTheApp->m_idleTag = 0; + { +#if wxUSE_THREADS + wxMutexLocker lock(gs_idleTagsMutex); +#endif + g_isIdle = TRUE; + wxTheApp->m_idleTag = 0; + } // Send idle event to all who request them as long as // no events have popped up in the event queue. @@ -249,22 +285,82 @@ static gint wxapp_idle_callback( gpointer WXUNUSED(data) ) #if wxUSE_THREADS +#ifdef HAVE_POLL + #define wxPoll poll + #define wxPollFd pollfd +#else // !HAVE_POLL + +typedef GPollFD wxPollFd; + +int wxPoll(wxPollFd *ufds, unsigned int nfds, int timeout) +{ + // convert timeout from ms to struct timeval (s/us) + timeval tv_timeout; + tv_timeout.tv_sec = timeout/1000; + tv_timeout.tv_usec = (timeout%1000)*1000; + + // remember the highest fd used here + int fdMax = -1; + + // and fill the sets for select() + fd_set readfds; + fd_set writefds; + fd_set exceptfds; + FD_ZERO(&readfds); + FD_ZERO(&writefds); + FD_ZERO(&exceptfds); + + unsigned int i; + for ( i = 0; i < nfds; i++ ) + { + wxASSERT_MSG( ufds[i].fd < FD_SETSIZE, _T("fd out of range") ); + + if ( ufds[i].events & G_IO_IN ) + FD_SET(ufds[i].fd, &readfds); + + if ( ufds[i].events & G_IO_PRI ) + FD_SET(ufds[i].fd, &exceptfds); + + if ( ufds[i].events & G_IO_OUT ) + FD_SET(ufds[i].fd, &writefds); + + if ( ufds[i].fd > fdMax ) + fdMax = ufds[i].fd; + } + + fdMax++; + int res = select(fdMax, &readfds, &writefds, &exceptfds, &tv_timeout); + + // translate the results back + for ( i = 0; i < nfds; i++ ) + { + ufds[i].revents = 0; + + if ( FD_ISSET(ufds[i].fd, &readfds ) ) + ufds[i].revents |= G_IO_IN; + + if ( FD_ISSET(ufds[i].fd, &exceptfds ) ) + ufds[i].revents |= G_IO_PRI; + + if ( FD_ISSET(ufds[i].fd, &writefds ) ) + ufds[i].revents |= G_IO_OUT; + } + + return res; +} + +#endif // HAVE_POLL/!HAVE_POLL + static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout ) { - gint res; gdk_threads_enter(); wxMutexGuiLeave(); g_mainThreadLocked = TRUE; -#ifdef __DARWIN__ - // FIXME: poll is not available under Darwin/Mac OS X and this needs - // to be implemented using select instead (GD) - // what about other BSD derived systems? - res = -1; -#else - res = poll( (struct pollfd*) ufds, nfds, timeout ); -#endif + // we rely on the fact that glib GPollFD struct is really just pollfd but + // I wonder how wise is this in the long term (VZ) + gint res = wxPoll( (wxPollFd *) ufds, nfds, timeout ); wxMutexGuiEnter(); g_mainThreadLocked = FALSE; @@ -280,6 +376,20 @@ static gint wxapp_poll_func( GPollFD *ufds, guint nfds, gint timeout ) void wxapp_install_idle_handler() { +#if wxUSE_THREADS + wxMutexLocker lock(gs_idleTagsMutex); +#endif + + // Don't install the handler if it's already installed. This test *MUST* + // be done when gs_idleTagsMutex is locked! + if (!g_isIdle) + return; + + // GD: this assert is raised when using the thread sample (which works) + // so the test is probably not so easy. Can widget callbacks be + // triggered from child threads and, if so, for which widgets? + // wxASSERT_MSG( wxThread::IsMain() || gs_WakeUpIdle, wxT("attempt to install idle handler from widget callback in child thread (should be exclusively from wxWakeUpIdle)") ); + wxASSERT_MSG( wxTheApp->m_idleTag == 0, wxT("attempt to install idle handler twice") ); g_isIdle = FALSE; @@ -316,17 +426,17 @@ GtkWidget* wxGetRootWindow() IMPLEMENT_DYNAMIC_CLASS(wxApp,wxEvtHandler) BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) + EVT_IDLE(wxAppBase::OnIdle) END_EVENT_TABLE() wxApp::wxApp() { - m_initialized = FALSE; #ifdef __WXDEBUG__ m_isInAssert = FALSE; #endif // __WXDEBUG__ m_idleTag = 0; + g_isIdle = TRUE; wxapp_install_idle_handler(); #if wxUSE_THREADS @@ -337,6 +447,7 @@ wxApp::wxApp() // this is NULL for a "regular" wxApp, but is set (and freed) by a wxGLApp m_glVisualInfo = (void *) NULL; + m_glFBCInfo = (void *) NULL; } wxApp::~wxApp() @@ -460,398 +571,146 @@ GdkVisual *wxApp::GetGdkVisual() return visual; } -bool wxApp::ProcessIdle() -{ - wxIdleEvent event; - event.SetEventObject( this ); - ProcessEvent( event ); - - return event.MoreRequested(); -} - -void wxApp::OnIdle( wxIdleEvent &event ) -{ - static bool s_inOnIdle = FALSE; - - // Avoid recursion (via ProcessEvent default case) - if (s_inOnIdle) - return; - - s_inOnIdle = TRUE; - - // Resend in the main thread events which have been prepared in other - // threads - ProcessPendingEvents(); - - // 'Garbage' collection of windows deleted with Close() - DeletePendingObjects(); - - // Send OnIdle events to all windows - bool needMore = SendIdleEvents(); - - if (needMore) - event.RequestMore(TRUE); - - s_inOnIdle = FALSE; -} - -bool wxApp::SendIdleEvents() -{ - bool needMore = FALSE; - - wxWindowList::Node* node = wxTopLevelWindows.GetFirst(); - while (node) - { - wxWindow* win = node->GetData(); - if (SendIdleEvents(win)) - needMore = TRUE; - - node = node->GetNext(); - } - - node = wxTopLevelWindows.GetFirst(); - while (node) - { - wxWindow* win = node->GetData(); - CallInternalIdle( win ); - - node = node->GetNext(); - } - return needMore; -} - -bool wxApp::CallInternalIdle( wxWindow* win ) -{ - win->OnInternalIdle(); - - wxNode* node = win->GetChildren().First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - CallInternalIdle( win ); - - node = node->Next(); - } - - return TRUE; -} - -bool wxApp::SendIdleEvents( wxWindow* win ) -{ - bool needMore = FALSE; - - wxIdleEvent event; - event.SetEventObject(win); - - win->GetEventHandler()->ProcessEvent(event); - - if (event.MoreRequested()) - needMore = TRUE; - - wxNode* node = win->GetChildren().First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; - - node = node->Next(); - } - - return needMore; -} - -int wxApp::MainLoop() -{ - gtk_main(); - return 0; -} - -void wxApp::ExitMainLoop() -{ - if (gtk_main_level() > 0) - gtk_main_quit(); -} - -bool wxApp::Initialized() -{ - return m_initialized; -} - -bool wxApp::Pending() -{ - return (gtk_events_pending() > 0); -} - -void wxApp::Dispatch() -{ - gtk_main_iteration(); -} - -void wxApp::DeletePendingObjects() -{ - wxNode *node = wxPendingDelete.First(); - while (node) - { - wxObject *obj = (wxObject *)node->Data(); - - delete obj; - - if (wxPendingDelete.Find(obj)) - delete node; - - node = wxPendingDelete.First(); - } -} - -bool wxApp::Initialize() -{ - wxClassInfo::InitializeClasses(); - -#if wxUSE_INTL - wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); -#endif - - // GL: I'm annoyed ... I don't know where to put this and I don't want to - // create a module for that as it's part of the core. -#if wxUSE_THREADS - wxPendingEvents = new wxList(); - wxPendingEventsLocker = new wxCriticalSection(); -#endif - - wxTheColourDatabase = new wxColourDatabase( wxKEY_STRING ); - wxTheColourDatabase->Initialize(); - - wxInitializeStockLists(); - wxInitializeStockObjects(); - -#if wxUSE_WX_RESOURCES - wxInitializeResourceSystem(); -#endif - - wxModule::RegisterModules(); - if (!wxModule::InitializeModules()) return FALSE; - - return TRUE; -} - -void wxApp::CleanUp() -{ - wxModule::CleanUpModules(); - -#if wxUSE_WX_RESOURCES - wxCleanUpResourceSystem(); -#endif - - delete wxTheColourDatabase; - wxTheColourDatabase = (wxColourDatabase*) NULL; - - wxDeleteStockObjects(); - - wxDeleteStockLists(); - - delete wxTheApp; - wxTheApp = (wxApp*) NULL; - - wxClassInfo::CleanUpClasses(); - -#if wxUSE_THREADS - delete wxPendingEvents; - delete wxPendingEventsLocker; -#endif - - // check for memory leaks -#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT - if (wxDebugContext::CountObjectsLeft(TRUE) > 0) - { - wxLogDebug(wxT("There were memory leaks.\n")); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); - } -#endif // Debug - -#if wxUSE_LOG - // do this as the very last thing because everything else can log messages - wxLog::DontCreateOnDemand(); - - wxLog *oldLog = wxLog::SetActiveTarget( (wxLog*) NULL ); - if (oldLog) - delete oldLog; -#endif // wxUSE_LOG -} - -//----------------------------------------------------------------------------- -// wxEntry -//----------------------------------------------------------------------------- - -// NB: argc and argv may be changed here, pass by reference! -int wxEntryStart( int& argc, char *argv[] ) +bool wxApp::Initialize(int& argc, wxChar **argv) { + bool init_result; + #if wxUSE_THREADS // GTK 1.2 up to version 1.2.3 has broken threads if ((gtk_major_version == 1) && (gtk_minor_version == 2) && (gtk_micro_version < 4)) { - printf( "wxWindows warning: GUI threading disabled due to outdated GTK version\n" ); + printf( "wxWidgets warning: GUI threading disabled due to outdated GTK version\n" ); } else { - g_thread_init(NULL); + if (!g_thread_supported()) + g_thread_init(NULL); } -#endif +#endif // wxUSE_THREADS gtk_set_locale(); // We should have the wxUSE_WCHAR_T test on the _outside_ #if wxUSE_WCHAR_T -#if defined(__WXGTK20__) - // gtk+ 2.0 supports Unicode through UTF-8 strings - wxConvCurrent = &wxConvUTF8; -#else - if (!wxOKlibc()) wxConvCurrent = &wxConvLocal; -#endif -#else - if (!wxOKlibc()) wxConvCurrent = (wxMBConv*) NULL; -#endif + #if defined(__WXGTK20__) + // gtk+ 2.0 supports Unicode through UTF-8 strings + wxConvCurrent = &wxConvUTF8; + #else // GTK 1.x + if (!wxOKlibc()) + wxConvCurrent = &wxConvLocal; + #endif +#else // !wxUSE_WCHAR_T + if (!wxOKlibc()) + wxConvCurrent = (wxMBConv*) NULL; +#endif // wxUSE_WCHAR_T/!wxUSE_WCHAR_T - gdk_threads_enter(); - - gtk_init( &argc, &argv ); - - wxSetDetectableAutoRepeat( TRUE ); - - if (!wxApp::Initialize()) +#ifdef __WXGTK20__ + // decide which conversion to use for the file names + + // (1) this variable exists for the sole purpose of specifying the encoding + // of the filenames for GTK+ programs, so use it if it is set + wxString encName(wxGetenv(_T("G_FILENAME_ENCODING"))); + if (encName == _T("@locale")) + encName.clear(); + encName.MakeUpper(); +#if wxUSE_INTL + if (encName.empty()) { - gdk_threads_leave(); - return -1; + // (2) if a non default locale is set, assume that the user wants his + // filenames in this locale too + encName = wxLocale::GetSystemEncodingName().Upper(); + // (3) finally use UTF-8 by default + if (encName.empty() || encName == _T("US-ASCII")) + encName = _T("UTF-8"); + wxSetEnv(_T("G_FILENAME_ENCODING"), encName); } +#else + if (encName.empty()) + encName = _T("UTF-8"); +#endif // wxUSE_INTL + static wxConvBrokenFileNames fileconv(encName); + wxConvFileName = &fileconv; +#endif // __WXGTK20__ - return 0; -} - - -int wxEntryInitGui() -{ - int retValue = 0; - - if ( !wxTheApp->OnInitGui() ) - retValue = -1; - - wxGetRootWindow(); - - return retValue; -} - - -void wxEntryCleanup() -{ -#if wxUSE_LOG - // flush the logged messages if any - wxLog *log = wxLog::GetActiveTarget(); - if (log != NULL && log->HasPendingMessages()) - log->Flush(); - - // continuing to use user defined log target is unsafe from now on because - // some resources may be already unavailable, so replace it by something - // more safe - wxLog *oldlog = wxLog::SetActiveTarget(new wxLogStderr); - if ( oldlog ) - delete oldlog; -#endif // wxUSE_LOG - - wxApp::CleanUp(); - - gdk_threads_leave(); -} +#if wxUSE_UNICODE + // gtk_init() wants UTF-8, not wchar_t, so convert + int i; + char **argvGTK = new char *[argc + 1]; + for ( i = 0; i < argc; i++ ) + { + argvGTK[i] = wxStrdupA(wxConvUTF8.cWX2MB(argv[i])); + } + argvGTK[argc] = NULL; -int wxEntry( int argc, char *argv[] ) -{ -#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT - // This seems to be necessary since there are 'rogue' - // objects present at this point (perhaps global objects?) - // Setting a checkpoint will ignore them as far as the - // memory checking facility is concerned. - // Of course you may argue that memory allocated in globals should be - // checked, but this is a reasonable compromise. - wxDebugContext::SetCheckpoint(); + int argcGTK = argc; + +#ifdef __WXGPE__ + init_result = true; // is there a _check() version of this? + gpe_application_init( &argcGTK, &argvGTK ); +#else + init_result = gtk_init_check( &argcGTK, &argvGTK ); #endif - int err = wxEntryStart(argc, argv); - if (err) - return err; - if (!wxTheApp) + if ( argcGTK != argc ) { - wxCHECK_MSG( wxApp::GetInitializerFunction(), -1, - wxT("wxWindows error: No initializer - use IMPLEMENT_APP macro.\n") ); - - wxAppInitializerFunction app_ini = wxApp::GetInitializerFunction(); - - wxObject *test_app = app_ini(); + // we have to drop the parameters which were consumed by GTK+ + for ( i = 0; i < argcGTK; i++ ) + { + while ( strcmp(wxConvUTF8.cWX2MB(argv[i]), argvGTK[i]) != 0 ) + { + memmove(argv + i, argv + i + 1, argc - i); + } + } - wxTheApp = (wxApp*) test_app; + argc = argcGTK; } + //else: gtk_init() didn't modify our parameters - wxCHECK_MSG( wxTheApp, -1, wxT("wxWindows error: no application object") ); - - wxTheApp->argc = argc; -#if wxUSE_UNICODE - wxTheApp->argv = new wxChar*[argc+1]; - int mb_argc = 0; - while (mb_argc < argc) + // free our copy + for ( i = 0; i < argcGTK; i++ ) { - wxTheApp->argv[mb_argc] = wxStrdup(wxConvLibc.cMB2WX(argv[mb_argc])); - mb_argc++; + free(argvGTK[i]); } - wxTheApp->argv[mb_argc] = (wxChar *)NULL; -#else - wxTheApp->argv = argv; -#endif - - wxString name(wxFileNameFromPath(argv[0])); - wxStripExtension( name ); - wxTheApp->SetAppName( name ); - int retValue; - retValue = wxEntryInitGui(); + delete [] argvGTK; +#else // !wxUSE_UNICODE + // gtk_init() shouldn't actually change argv itself (just its contents) so + // it's ok to pass pointer to it + init_result = gtk_init_check( &argc, &argv ); +#endif // wxUSE_UNICODE/!wxUSE_UNICODE - // Here frames insert themselves automatically into wxTopLevelWindows by - // getting created in OnInit(). - if ( retValue == 0 ) - { - if ( !wxTheApp->OnInit() ) - retValue = -1; + if (!init_result) { + wxLogError(wxT("Unable to initialize gtk, is DISPLAY set properly?")); + return false; } + + // we can not enter threads before gtk_init is done + gdk_threads_enter(); - if ( retValue == 0 ) + if ( !wxAppBase::Initialize(argc, argv) ) { - // Delete pending toplevel windows - wxTheApp->DeletePendingObjects(); - - // When is the app not initialized ? - wxTheApp->m_initialized = TRUE; - - if (wxTheApp->Initialized()) - { - wxTheApp->OnRun(); + gdk_threads_leave(); - wxWindow *topWindow = wxTheApp->GetTopWindow(); + return false; + } - // Delete all pending windows if any - wxTheApp->DeletePendingObjects(); + wxSetDetectableAutoRepeat( TRUE ); - // Reset top window - if (topWindow) - wxTheApp->SetTopWindow( (wxWindow*) NULL ); +#if wxUSE_INTL + wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); +#endif - retValue = wxTheApp->OnExit(); - } - } + return true; +} - wxEntryCleanup(); +void wxApp::CleanUp() +{ + gdk_threads_leave(); - return retValue; + wxAppBase::CleanUp(); } #ifdef __WXDEBUG__ @@ -867,3 +726,15 @@ void wxApp::OnAssert(const wxChar *file, int line, const wxChar* cond, const wxC #endif // __WXDEBUG__ +void wxApp::RemoveIdleTag() +{ +#if wxUSE_THREADS + wxMutexLocker lock(gs_idleTagsMutex); +#endif + if (!g_isIdle) + { + gtk_idle_remove( wxTheApp->m_idleTag ); + wxTheApp->m_idleTag = 0; + g_isIdle = TRUE; + } +}