X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7491d644e6103afc2a69b750ca255218181b63a3..f889bdb323d20a9acb0b979d62d0f45c5cd3842e:/src/motif/app.cpp?ds=sidebyside diff --git a/src/motif/app.cpp b/src/motif/app.cpp index a58293df0e..4fa8fbcc8f 100644 --- a/src/motif/app.cpp +++ b/src/motif/app.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: app.cpp +// Name: src/motif/app.cpp // Purpose: wxApp // Author: Julian Smart // Modified by: @@ -9,276 +9,163 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "app.h" +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + +#ifdef __VMS +#define XtParent XTPARENT +#define XtDisplay XTDISPLAY #endif -#include "wx/frame.h" #include "wx/app.h" -#include "wx/utils.h" -#include "wx/gdicmn.h" -#include "wx/pen.h" -#include "wx/brush.h" -#include "wx/cursor.h" -#include "wx/icon.h" -#include "wx/palette.h" -#include "wx/dc.h" -#include "wx/dialog.h" -#include "wx/msgdlg.h" -#include "wx/log.h" -#include "wx/module.h" -#include "wx/memory.h" -#if wxUSE_THREADS -#include "wx/thread.h" +#ifndef WX_PRECOMP + #include "wx/hash.h" + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/memory.h" + #include "wx/font.h" #endif -#if wxUSE_WX_RESOURCES - #include "wx/resource.h" +#include "wx/evtloop.h" + +#if wxUSE_THREADS + #include "wx/thread.h" #endif +#ifdef __VMS__ + #pragma message disable nosimpint +#endif #include #include #include #include #include +#ifdef __VMS__ + #pragma message enable nosimpint +#endif #include "wx/motif/private.h" #include -extern char *wxBuffer; -extern wxList wxPendingDelete; +struct wxPerDisplayData +{ + wxPerDisplayData() + { + m_visualInfo = NULL; + m_topLevelWidget = NULL; + m_topLevelRealizedWidget = NULL; + } + + wxXVisualInfo* m_visualInfo; + Widget m_topLevelWidget, m_topLevelRealizedWidget; +}; -#if wxUSE_THREADS -extern wxList wxPendingEvents; -extern wxCriticalSection wxPendingEventsLocker; -#endif // wxUSE_THREADS +static void wxTLWidgetDestroyCallback(Widget w, XtPointer clientData, + XtPointer ptr); +static WXWidget wxCreateTopLevelWidget( WXDisplay* display ); -wxApp *wxTheApp = NULL; +extern bool wxAddIdleCallback(); wxHashTable *wxWidgetHashTable = NULL; -#if !USE_SHARED_LIBRARY IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) + EVT_IDLE(wxAppBase::OnIdle) END_EVENT_TABLE() -#endif - -long wxApp::sm_lastMessageTime = 0; -bool wxApp::Initialize() +#ifdef __WXDEBUG__ +extern "C" { - wxBuffer = new char[BUFSIZ + 512]; - - wxClassInfo::InitializeClasses(); + typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *); +} - wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); - wxTheColourDatabase->Initialize(); +XErrorHandlerFunc gs_pfnXErrorHandler = 0; - wxInitializeStockLists(); - wxInitializeStockObjects(); +extern "C" +{ -#if wxUSE_WX_RESOURCES - wxInitializeResourceSystem(); -#endif +static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent) +{ + // just forward to the default handler for now + return gs_pfnXErrorHandler(dpy, xevent); +} - // For PostScript printing -#if wxUSE_POSTSCRIPT - /* Done using wxModule now - wxInitializePrintSetupData(); - wxThePrintPaperDatabase = new wxPrintPaperDatabase; - wxThePrintPaperDatabase->CreateDatabase(); - */ -#endif +} +#endif // __WXDEBUG__ - wxBitmap::InitStandardHandlers(); +bool wxApp::Initialize(int& argcOrig, wxChar **argvOrig) +{ + if ( !wxAppBase::Initialize(argcOrig, argvOrig) ) + return false; wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER); - wxModule::RegisterModules(); - if (!wxModule::InitializeModules()) return FALSE; +#if wxUSE_INTL + wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding()); +#endif - return TRUE; + return true; } void wxApp::CleanUp() { + wxAppBase::CleanUp(); + delete wxWidgetHashTable; wxWidgetHashTable = NULL; - wxModule::CleanUpModules(); + delete m_mainLoop; -#if wxUSE_WX_RESOURCES - wxCleanUpResourceSystem(); -#endif - - wxDeleteStockObjects() ; - - // Destroy all GDI lists, etc. - - delete wxTheBrushList; - wxTheBrushList = NULL; - - delete wxThePenList; - wxThePenList = NULL; - - delete wxTheFontList; - wxTheFontList = NULL; - - delete wxTheBitmapList; - wxTheBitmapList = NULL; - - delete wxTheColourDatabase; - wxTheColourDatabase = NULL; - -#if wxUSE_POSTSCRIPT - /* Done using wxModule now - wxInitializePrintSetupData(FALSE); - delete wxThePrintPaperDatabase; - wxThePrintPaperDatabase = NULL; - */ -#endif - - wxBitmap::CleanUpHandlers(); - - delete[] wxBuffer; - wxBuffer = NULL; - - wxClassInfo::CleanUpClasses(); - - delete wxTheApp; - wxTheApp = NULL; - -#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT - // At this point we want to check if there are any memory - // blocks that aren't part of the wxDebugContext itself, - // as a special case. Then when dumping we need to ignore - // wxDebugContext, too. - if (wxDebugContext::CountObjectsLeft(TRUE) > 0) + for( wxPerDisplayDataMap::iterator it = m_perDisplayData->begin(), + end = m_perDisplayData->end(); + it != end; ++it ) { - wxLogDebug("There were memory leaks.\n"); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); - } + delete it->second->m_visualInfo; + // On Solaris 10 calling XtDestroyWidget on the top level widget + // dumps core if the locale is set to something other than "C" +#ifndef __SUN__ + XtDestroyWidget( it->second->m_topLevelWidget ); #endif + delete it->second; + } - // do it as the very last thing because everything else can log messages - wxLog::DontCreateOnDemand(); - // do it as the very last thing because everything else can log messages - delete wxLog::SetActiveTarget(NULL); + delete m_perDisplayData; } -int wxEntry( int argc, char *argv[] ) +void wxApp::Exit() { -#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(); -#endif - - if (!wxApp::Initialize()) - return FALSE; - - if (!wxTheApp) - { - if (!wxApp::GetInitializerFunction()) - { - printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" ); - return 0; - }; - - wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) (); - }; - - if (!wxTheApp) - { - printf( "wxWindows error: wxTheApp == NULL\n" ); - return 0; - }; - - wxTheApp->SetClassName(wxFileNameFromPath(argv[0])); - wxTheApp->SetAppName(wxFileNameFromPath(argv[0])); - - wxTheApp->argc = argc; - wxTheApp->argv = argv; - - // GUI-specific initialization, such as creating an app context. - wxTheApp->OnInitGui(); - - // Here frames insert themselves automatically into wxTopLevelWindows by - // getting created in OnInit(). - - int retValue = 0; - if (wxTheApp->OnInit()) - { - if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun(); - } - - // flush the logged messages if any - wxLog *pLog = wxLog::GetActiveTarget(); - if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); - - delete wxLog::SetActiveTarget(new wxLogStderr); // So dialog boxes aren't used - // for further messages - - if (wxTheApp->GetTopWindow()) - { - delete wxTheApp->GetTopWindow(); - wxTheApp->SetTopWindow(NULL); - } - - wxTheApp->DeletePendingObjects(); - - wxTheApp->OnExit(); - wxApp::CleanUp(); - return retValue; -}; + wxAppConsole::Exit(); +} -// Static member initialization -wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL; +// ============================================================================ +// wxApp +// ============================================================================ wxApp::wxApp() { - m_topWindow = NULL; - wxTheApp = this; - m_className = ""; - m_wantDebugOutput = TRUE ; - m_appName = ""; argc = 0; argv = NULL; - m_printMode = wxPRINT_POSTSCRIPT; - m_exitOnFrameDelete = TRUE; - m_auto3D = TRUE; + m_mainLoop = new wxEventLoop; m_mainColormap = (WXColormap) NULL; m_appContext = (WXAppContext) NULL; - m_topLevelWidget = (WXWidget) NULL; - m_maxRequestSize = 0; m_initialDisplay = (WXDisplay*) 0; + m_perDisplayData = new wxPerDisplayDataMap; } -bool wxApp::Initialized() +wxApp::~wxApp() { - if (GetTopWindow()) - return TRUE; - else - return FALSE; + wxApp::SetInstance(NULL); } int wxApp::MainLoop() { - m_keepGoing = TRUE; - /* * Sit around forever waiting to process X-events. Property Change * event are handled special, because they have to refer to @@ -290,110 +177,11 @@ int wxApp::MainLoop() XDefaultRootWindow(XtDisplay((Widget) wxTheApp->GetTopLevelWidget())), PropertyChangeMask); - XEvent event; - - // Use this flag to allow breaking the loop via wxApp::ExitMainLoop() - while (m_keepGoing) - { - XtAppNextEvent( (XtAppContext) wxTheApp->GetAppContext(), &event); - - ProcessXEvent((WXEvent*) & event); - - if (XtAppPending( (XtAppContext) wxTheApp->GetAppContext() ) == 0) - { - if (!ProcessIdle()) - { -#if wxUSE_THREADS - // leave the main loop to give other threads a chance to - // perform their GUI work - wxMutexGuiLeave(); - wxUsleep(20); - wxMutexGuiEnter(); -#endif - } - } - - } + m_mainLoop->Run(); return 0; } -// Processes an X event. -void wxApp::ProcessXEvent(WXEvent* _event) -{ - XEvent* event = (XEvent*) _event; - - if ((event->type == KeyPress) && CheckForAccelerator(_event)) - { - // Do nothing! We intercepted and processed the event as an accelerator. - return; - } - else if (event->type == PropertyNotify) - { - HandlePropertyChange(_event); - return; - } - else if (event->type == ResizeRequest) - { - /* Terry Gitnick - 1/21/98 - * If resize event, don't resize until the last resize event for this - * window is recieved. Prevents flicker as windows are resized. - */ - - Display *disp = XtDisplay((Widget) wxTheApp->GetTopLevelWidget()); - Window win = event->xany.window; - XEvent report; - - // to avoid flicker - report = * event; - while( XCheckTypedWindowEvent (disp, win, ResizeRequest, &report)); - - // TODO: when implementing refresh optimization, we can use - // XtAddExposureToRegion to expand the window's paint region. - - XtDispatchEvent(event); - } - else - { - XtDispatchEvent(event); - } -} - -// Returns TRUE if more time is needed. -bool wxApp::ProcessIdle() -{ - wxIdleEvent event; - event.SetEventObject(this); - ProcessEvent(event); - - return event.MoreRequested(); -} - -void wxApp::ExitMainLoop() -{ - m_keepGoing = FALSE; -} - -// Is a message/event pending? -bool wxApp::Pending() -{ - XFlush(XtDisplay( (Widget) wxTheApp->GetTopLevelWidget() )); - - // Fix by Doug from STI, to prevent a stall if non-X event - // is found. - return ((XtAppPending( (XtAppContext) GetAppContext() ) & XtIMXEvent) != 0) ; -} - -// Dispatch a message. -void wxApp::Dispatch() -{ - // XtAppProcessEvent( (XtAppContext) wxTheApp->GetAppContext(), XtIMAll); - - XEvent event; - XtAppNextEvent((XtAppContext) GetAppContext(), &event); - ProcessXEvent((WXEvent*) & event); -} - // This should be redefined in a derived class for // handling property change events for XAtom IPC. void wxApp::HandlePropertyChange(WXEvent *event) @@ -402,137 +190,80 @@ void wxApp::HandlePropertyChange(WXEvent *event) XtDispatchEvent((XEvent*) event); /* let Motif do the work */ } -void wxApp::OnIdle(wxIdleEvent& event) -{ - static bool inOnIdle = FALSE; - - // Avoid recursion (via ProcessEvent default case) - if (inOnIdle) - return; - - inOnIdle = TRUE; - - // 'Garbage' collection of windows deleted with Close(). - DeletePendingObjects(); - -#if wxUSE_THREADS - // Flush pending events. - ProcessPendingEvents(); -#endif - - // flush the logged messages if any - wxLog *pLog = wxLog::GetActiveTarget(); - if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); - - // Send OnIdle events to all windows - bool needMore = SendIdleEvents(); - - if (needMore) - event.RequestMore(TRUE); - - inOnIdle = FALSE; -} - -// Send idle event to all top-level windows -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(); - } - - return needMore; -} - -// Send idle event to window and all subwindows -bool wxApp::SendIdleEvents(wxWindow* win) -{ - bool needMore = FALSE; - - wxIdleEvent event; - event.SetEventObject(win); - win->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 ; -} +static char *fallbackResources[] = { + // better defaults for CDE under Irix + // + // TODO: do something similar for the other systems, the hardcoded defaults + // below are ugly +#ifdef __SGI__ + wxMOTIF_STR("*sgiMode: True"), + wxMOTIF_STR("*useSchemes: all"), +#else // !__SGI__ + wxMOTIF_STR("*menuBar.marginHeight: 0"), + wxMOTIF_STR("*menuBar.shadowThickness: 1"), + wxMOTIF_STR("*background: #c0c0c0"), + wxMOTIF_STR("*foreground: black"), +#endif // __SGI__/!__SGI__ + NULL +}; -void wxApp::DeletePendingObjects() +// Create an application context +bool wxApp::OnInitGui() { - wxNode *node = wxPendingDelete.First(); - while (node) + if( !wxAppBase::OnInitGui() ) + return false; + +#ifdef __HPUX__ + // under HP-UX creating XmFontSet fails when the system locale is C and + // we're using a remote DISPLAY, presumably because HP-UX uses its own + // names for C and ISO locales (roman8 and iso8859n respectively) and so + // its Motif libraries have troubles with non-HP X server + // + // whatever the reason, the fact is that without this hack any wxMotif + // program crashes on startup because it can't create any font (HP programs + // still work but they do spit out messages about failing to create font + // sets and failing back on "fixed" font too) + // + // notice that calling setlocale() here is not enough because X(m) init + // functions call setlocale() later so we really have to change environment + bool fixAll = false; // tweak LC_ALL (or just LC_CTYPE)? + const char *loc = getenv("LC_CTYPE"); + if ( !loc ) { - wxObject *obj = (wxObject *)node->Data(); - - delete obj; - - if (wxPendingDelete.Member(obj)) - delete node; - - // Deleting one object may have deleted other pending - // objects, so start from beginning of list again. - node = wxPendingDelete.First(); + loc = getenv("LC_ALL"); + if ( loc ) + fixAll = true; } -} -#if wxUSE_THREADS -void wxApp::ProcessPendingEvents() -{ - wxNode *node = wxPendingEvents.First(); - wxCriticalSectionLocker locker(wxPendingEventsLocker); - - while (node) + if ( !loc || + (loc[0] == 'C' && loc[1] == '\0') || + strcmp(loc, "POSIX") == 0 ) { - wxEvtHandler *handler = (wxEvtHandler *)node->Data(); - - handler->ProcessPendingEvents(); - - delete node; - node = wxPendingEvents.First(); + // we're using C locale, "fix" it + wxLogDebug(_T("HP-UX fontset hack: forcing locale to en_US.iso88591")); + putenv(fixAll ? "LC_ALL=en_US.iso88591" : "LC_CTYPE=en_US.iso88591"); } -} -#endif // wxUSE_THREADS - -wxLog* wxApp::CreateLogTarget() -{ - return new wxLogGui; -} - -wxWindow* wxApp::GetTopWindow() const -{ - if (m_topWindow) - return m_topWindow; - else if (wxTopLevelWindows.GetCount() > 0) - return wxTopLevelWindows.GetFirst()->GetData(); - else - return NULL; -} +#endif // __HPUX__ -// Create an application context -bool wxApp::OnInitGui() -{ + XtSetLanguageProc(NULL, NULL, NULL); XtToolkitInitialize() ; - wxTheApp->m_appContext = (WXAppContext) XtCreateApplicationContext() ; - Display *dpy = XtOpenDisplay((XtAppContext) wxTheApp->m_appContext,(String)NULL,NULL, - (const char*) wxTheApp->GetClassName(), NULL, 0, + wxTheApp->m_appContext = (WXAppContext) XtCreateApplicationContext(); + XtAppSetFallbackResources((XtAppContext) wxTheApp->m_appContext, fallbackResources); + + // we shouldn't pass empty application/class name as it results in + // immediate crash inside XOpenIM() (if XIM is used) under IRIX + wxString appname = wxTheApp->GetAppName(); + if ( appname.empty() ) + appname = _T("wxapp"); + wxString clsname = wxTheApp->GetClassName(); + if ( clsname.empty() ) + clsname = _T("wx"); + + Display *dpy = XtOpenDisplay((XtAppContext) wxTheApp->m_appContext, + (String)NULL, + appname.c_str(), + clsname.c_str(), + NULL, 0, // no options # if XtSpecificationRelease < 5 (Cardinal*) &argc, # else @@ -541,27 +272,31 @@ bool wxApp::OnInitGui() argv); if (!dpy) { + // if you don't log to stderr, nothing will be shown... + delete wxLog::SetActiveTarget(new wxLogStderr); wxString className(wxTheApp->GetClassName()); - wxLogError(_("wxWindows could not open display for '%s': exiting."), - (const char*) className); + wxLogError(_("wxWidgets could not open display for '%s': exiting."), + className.c_str()); exit(-1); } m_initialDisplay = (WXDisplay*) dpy; - wxTheApp->m_topLevelWidget = (WXWidget) XtAppCreateShell((String)NULL, (const char*) wxTheApp->GetClassName(), - applicationShellWidgetClass,dpy, - NULL,0) ; +#ifdef __WXDEBUG__ + // install the X error handler + gs_pfnXErrorHandler = XSetErrorHandler(wxXErrorHandler); +#endif // __WXDEBUG__ // Add general resize proc XtActionsRec rec; - rec.string = "resize"; + rec.string = wxMOTIF_STR("resize"); rec.proc = (XtActionProc)wxWidgetResizeProc; XtAppAddActions((XtAppContext) wxTheApp->m_appContext, &rec, 1); GetMainColormap(dpy); - m_maxRequestSize = XMaxRequestSize((Display*) dpy); - return TRUE; + wxAddIdleCallback(); + + return true; } WXColormap wxApp::GetMainColormap(WXDisplay* display) @@ -580,66 +315,146 @@ WXColormap wxApp::GetMainColormap(WXDisplay* display) return (WXColormap) c; } -// Returns TRUE if an accelerator has been processed -bool wxApp::CheckForAccelerator(WXEvent* event) +static inline wxPerDisplayData& GetOrCreatePerDisplayData + ( wxPerDisplayDataMap& m, WXDisplay* display ) { - XEvent* xEvent = (XEvent*) event; - if (xEvent->xany.type == KeyPress) - { - // Find a wxWindow for this window - // TODO: should get display for the window, not the current display - Widget widget = XtWindowToWidget((Display*) wxGetDisplay(), xEvent->xany.window); - wxWindow* win = NULL; + wxPerDisplayDataMap::iterator it = m.find( display ); + if( it != m.end() && it->second != NULL ) + return *(it->second); - // Find the first wxWindow that corresponds to this event window - while (widget && !(win = wxGetWindowFromTable(widget))) - widget = XtParent(widget); + wxPerDisplayData* nData = new wxPerDisplayData(); + m[display] = nData; - if (!widget || !win) - return FALSE; + return *nData; +} - wxKeyEvent keyEvent(wxEVT_CHAR); - wxTranslateKeyEvent(keyEvent, win, (Widget) 0, xEvent); +wxXVisualInfo* wxApp::GetVisualInfo( WXDisplay* display ) +{ + wxPerDisplayData& data = GetOrCreatePerDisplayData( *m_perDisplayData, + display ); + if( data.m_visualInfo ) + return data.m_visualInfo; - // Now we have a wxKeyEvent and we have a wxWindow. - // Go up the hierarchy until we find a matching accelerator, - // or we get to the top. - while (win) - { - if (win->ProcessAccelerator(keyEvent)) - return TRUE; - win = win->GetParent(); - } - return FALSE; + wxXVisualInfo* vi = new wxXVisualInfo; + wxFillXVisualInfo( vi, (Display*)display ); + + data.m_visualInfo = vi; + + return vi; +} + +static void wxTLWidgetDestroyCallback(Widget w, XtPointer WXUNUSED(clientData), + XtPointer WXUNUSED(ptr)) +{ + if( wxTheApp ) + { + wxTheApp->SetTopLevelWidget( (WXDisplay*)XtDisplay(w), + (WXWidget)NULL ); + wxTheApp->SetTopLevelRealizedWidget( (WXDisplay*)XtDisplay(w), + (WXWidget)NULL ); } - return FALSE; } -void wxExit() +WXWidget wxCreateTopLevelWidget( WXDisplay* display ) { - int retValue = 0; - if (wxTheApp) - retValue = wxTheApp->OnExit(); + Widget tlw = XtAppCreateShell( (String)NULL, + wxTheApp->GetClassName().c_str(), + applicationShellWidgetClass, + (Display*)display, + NULL, 0 ); + XtVaSetValues( tlw, + XmNoverrideRedirect, True, + NULL ); + + XtAddCallback( tlw, XmNdestroyCallback, + (XtCallbackProc)wxTLWidgetDestroyCallback, + (XtPointer)NULL ); + + return (WXWidget)tlw; +} - wxApp::CleanUp(); - /* - * Exit in some platform-specific way. Not recommended that the app calls this: - * only for emergencies. - */ - exit(retValue); +WXWidget wxCreateTopLevelRealizedWidget( WXDisplay* WXUNUSED(display) ) +{ + Widget rTlw = XtVaCreateWidget( "dummy_widget", topLevelShellWidgetClass, + (Widget)wxTheApp->GetTopLevelWidget(), + NULL ); + XtSetMappedWhenManaged( rTlw, False ); + XtRealizeWidget( rTlw ); + + return (WXWidget)rTlw; +} + +WXWidget wxApp::GetTopLevelWidget() +{ + WXDisplay* display = wxGetDisplay(); + wxPerDisplayData& data = GetOrCreatePerDisplayData( *m_perDisplayData, + display ); + if( data.m_topLevelWidget ) + return (WXWidget)data.m_topLevelWidget; + + WXWidget tlw = wxCreateTopLevelWidget( display ); + SetTopLevelWidget( display, tlw ); + + return tlw; +} + +WXWidget wxApp::GetTopLevelRealizedWidget() +{ + WXDisplay* display = wxGetDisplay(); + wxPerDisplayDataMap::iterator it = m_perDisplayData->find( display ); + + if( it != m_perDisplayData->end() && it->second->m_topLevelRealizedWidget ) + return (WXWidget)it->second->m_topLevelRealizedWidget; + + WXWidget rTlw = wxCreateTopLevelRealizedWidget( display ); + SetTopLevelRealizedWidget( display, rTlw ); + + return rTlw; +} + +void wxApp::SetTopLevelWidget(WXDisplay* display, WXWidget widget) +{ + GetOrCreatePerDisplayData( *m_perDisplayData, display ) + .m_topLevelWidget = (Widget)widget; +} + +void wxApp::SetTopLevelRealizedWidget(WXDisplay* display, WXWidget widget) +{ + GetOrCreatePerDisplayData( *m_perDisplayData, display ) + .m_topLevelRealizedWidget = (Widget)widget; } // Yield to other processes -bool wxYield() + +bool wxApp::Yield(bool onlyIfNeeded) { + static bool s_inYield = false; + + if ( s_inYield ) + { + if ( !onlyIfNeeded ) + { + wxFAIL_MSG( wxT("wxYield called recursively" ) ); + } + + return false; + } + + s_inYield = true; + while (wxTheApp && wxTheApp->Pending()) wxTheApp->Dispatch(); - // VZ: is it the same as this (taken from old wxExecute)? -#if 0 - XtAppProcessEvent((XtAppContext) wxTheApp->GetAppContext(), XtIMAll); -#endif + s_inYield = false; - return TRUE; + return true; } +// ---------------------------------------------------------------------------- +// accessors for C modules +// ---------------------------------------------------------------------------- + +extern "C" XtAppContext wxGetAppContext() +{ + return (XtAppContext)wxTheApp->GetAppContext(); +}