X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/aaa38880c4b267f00077f3ce47685d25cf9e8f5e..550e6c014ca85140969ab48c22c684755b4e9dce:/src/motif/app.cpp diff --git a/src/motif/app.cpp b/src/motif/app.cpp index cc74c9b771..6dffbd1e12 100644 --- a/src/motif/app.cpp +++ b/src/motif/app.cpp @@ -6,91 +6,104 @@ // Created: 17/09/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ -#pragma implementation "app.h" + #pragma implementation "app.h" +#endif + +#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" -#include "wx/thread.h" +#include "wx/log.h" +#include "wx/intl.h" +#include "wx/evtloop.h" +#include "wx/hash.h" +#include "wx/hashmap.h" -#if wxUSE_WX_RESOURCES -#include "wx/resource.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; +struct wxPerDisplayData +{ + wxPerDisplayData() + { m_visualInfo = NULL; m_topLevelWidget = NULL; } + + wxXVisualInfo* m_visualInfo; + Widget m_topLevelWidget; +}; + +WX_DECLARE_VOIDPTR_HASH_MAP( wxPerDisplayData, wxPerDisplayDataMap ); + +static void wxTLWidgetDestroyCallback(Widget w, XtPointer clientData, + XtPointer ptr); +static WXWidget wxCreateTopLevelWidget( WXDisplay* display ); + extern wxList wxPendingDelete; +extern bool wxAddIdleCallback(); wxApp *wxTheApp = NULL; wxHashTable *wxWidgetHashTable = NULL; -#if !USE_SHARED_LIBRARY IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) + BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) EVT_IDLE(wxApp::OnIdle) END_EVENT_TABLE() -#endif -long wxApp::sm_lastMessageTime = 0; +#ifdef __WXDEBUG__ + typedef int (*XErrorHandlerFunc)(Display *, XErrorEvent *); + + XErrorHandlerFunc gs_pfnXErrorHandler = 0; + + static int wxXErrorHandler(Display *dpy, XErrorEvent *xevent) + { + // just forward to the default handler for now + return gs_pfnXErrorHandler(dpy, xevent); + } +#endif // __WXDEBUG__ bool wxApp::Initialize() { -#ifdef __WXMSW__ - wxBuffer = new char[1500]; -#else - wxBuffer = new char[BUFSIZ + 512]; -#endif - wxClassInfo::InitializeClasses(); + // 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 + wxPendingEventsLocker = new wxCriticalSection(); +#endif + wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); wxTheColourDatabase->Initialize(); wxInitializeStockLists(); wxInitializeStockObjects(); -#if wxUSE_WX_RESOURCES - wxInitializeResourceSystem(); -#endif - - // For PostScript printing -#if wxUSE_POSTSCRIPT -/* Done using wxModule now - wxInitializePrintSetupData(); - wxThePrintPaperDatabase = new wxPrintPaperDatabase; - wxThePrintPaperDatabase->CreateDatabase(); -*/ -#endif - - wxBitmap::InitStandardHandlers(); - wxWidgetHashTable = new wxHashTable(wxKEY_INTEGER); wxModule::RegisterModules(); @@ -101,52 +114,34 @@ bool wxApp::Initialize() void wxApp::CleanUp() { - delete wxWidgetHashTable; - wxWidgetHashTable = NULL; - wxModule::CleanUpModules(); -#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; + wxDeleteStockLists(); 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; - + + delete wxWidgetHashTable; + wxWidgetHashTable = NULL; + + // 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 + delete wxPendingEvents; + wxPendingEvents = NULL; + delete wxPendingEventsLocker; + wxPendingEventsLocker = NULL; +#endif + #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, @@ -154,19 +149,23 @@ void wxApp::CleanUp() // wxDebugContext, too. if (wxDebugContext::CountObjectsLeft(TRUE) > 0) { - wxLogDebug("There were memory leaks.\n"); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); + wxLogDebug("There were memory leaks.\n"); + wxDebugContext::Dump(); + wxDebugContext::PrintStatistics(); } #endif - + // 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); } -int wxEntry( int argc, char *argv[] ) +// ============================================================================ +// wxEntry* +// ============================================================================ + +int wxEntryStart( int argc, char* argv[] ) { #if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT // This seems to be necessary since there are 'rogue' @@ -179,23 +178,57 @@ int wxEntry( int argc, char *argv[] ) #endif if (!wxApp::Initialize()) - return FALSE; + return -1; + + return 0; +} + +int wxEntryInitGui() +{ + int retValue = 0; + + // GUI-specific initialization, such as creating an app context. + if (!wxTheApp->OnInitGui()) + retValue = -1; + + return retValue; +} + +void wxEntryCleanup() +{ + // So dialog boxes aren't used for further messages + delete wxLog::SetActiveTarget(new wxLogStderr); + + // flush the logged messages if any + wxLog *pLog = wxLog::GetActiveTarget(); + if ( pLog != NULL && pLog->HasPendingMessages() ) + pLog->Flush(); + + wxApp::CleanUp(); +} + +int wxEntry( int argc, char *argv[] ) +{ + int retValue = 0; + + retValue = wxEntryStart( argc, argv ); + if (retValue) return retValue; if (!wxTheApp) { - if (!wxApp::GetInitializerFunction()) - { - printf( "wxWindows error: No initializer - use IMPLEMENT_APP macro.\n" ); - return 0; - }; - - wxTheApp = (wxApp*) (* wxApp::GetInitializerFunction()) (); + 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; + printf( "wxWindows error: wxTheApp == NULL\n" ); + return 0; }; wxTheApp->SetClassName(wxFileNameFromPath(argv[0])); @@ -205,77 +238,76 @@ int wxEntry( int argc, char *argv[] ) wxTheApp->argv = argv; // GUI-specific initialization, such as creating an app context. - wxTheApp->OnInitGui(); + retValue = wxEntryInitGui(); + if (retValue) return retValue; + + // Here frames insert themselves automatically into wxTopLevelWindows by + // getting created in OnInit(). - // Here frames insert themselves automatically - // into wxTopLevelWindows by getting created - // in OnInit(). - - int retValue = 0; if (wxTheApp->OnInit()) { - if (wxTheApp->Initialized()) retValue = wxTheApp->OnRun(); + if (wxTheApp->Initialized()) + 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); + delete wxTheApp->GetTopWindow(); + wxTheApp->SetTopWindow(NULL); } - + wxTheApp->DeletePendingObjects(); - - wxTheApp->OnExit(); - - wxApp::CleanUp(); + + retValue = wxTheApp->OnExit(); + + wxEntryCleanup(); return retValue; -}; +} // Static member initialization -wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL; +wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL; 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_eventLoop = 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; +} + +wxApp::~wxApp() +{ + delete m_eventLoop; + + for( wxPerDisplayDataMap::iterator it = m_perDisplayData->begin(), + end = m_perDisplayData->end(); + it != end; ++it ) + { + delete it->second.m_visualInfo; + XtDestroyWidget( it->second.m_topLevelWidget ); + } + + delete m_perDisplayData; + + wxTheApp = NULL; } bool wxApp::Initialized() { if (GetTopWindow()) - return TRUE; + return TRUE; else - return FALSE; + return FALSE; } 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 * the root window rather than to a widget. therefore we can't @@ -283,107 +315,46 @@ int wxApp::MainLoop() */ XSelectInput(XtDisplay((Widget) wxTheApp->GetTopLevelWidget()), - XDefaultRootWindow(XtDisplay((Widget) wxTheApp->GetTopLevelWidget())), - PropertyChangeMask); + 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()) - { - wxMutexGuiLeave(); - usleep(20); - wxMutexGuiEnter(); - } - } - - } + m_eventLoop->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); - } -} - +// Processes an idle event. // Returns TRUE if more time is needed. bool wxApp::ProcessIdle() { wxIdleEvent event; - event.SetEventObject(this); - ProcessEvent(event); - return event.MoreRequested(); + return ProcessEvent(event) && event.MoreRequested(); } void wxApp::ExitMainLoop() { - m_keepGoing = FALSE; + if( m_eventLoop->IsRunning() ) + m_eventLoop->Exit(); } // Is a message/event pending? bool wxApp::Pending() { + return m_eventLoop->Pending(); +#if 0 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) ; +#endif } // Dispatch a message. void wxApp::Dispatch() { -// XtAppProcessEvent( (XtAppContext) wxTheApp->GetAppContext(), XtIMAll); - - XEvent event; - XtAppNextEvent((XtAppContext) GetAppContext(), &event); - ProcessXEvent((WXEvent*) & event); + m_eventLoop->Dispatch(); } // This should be redefined in a derived class for @@ -400,23 +371,35 @@ void wxApp::OnIdle(wxIdleEvent& event) // Avoid recursion (via ProcessEvent default case) if (inOnIdle) - return; + return; inOnIdle = TRUE; + // If there are pending events, we must process them: pending events + // are either events to the threads other than main or events posted + // with wxPostEvent() functions + // GRG: I have moved this here so that all pending events are processed + // before starting to delete any objects. This behaves better (in + // particular, wrt wxPostEvent) and is coherent with wxGTK's current + // behaviour. Also removed the '#if wxUSE_THREADS' around it. + // Changed Mar/2000 before 2.1.14 + + // Flush pending events. + ProcessPendingEvents(); + // 'Garbage' collection of windows deleted with Close(). DeletePendingObjects(); // flush the logged messages if any wxLog *pLog = wxLog::GetActiveTarget(); if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); + pLog->Flush(); // Send OnIdle events to all windows bool needMore = SendIdleEvents(); if (needMore) - event.RequestMore(TRUE); + event.RequestMore(TRUE); inOnIdle = FALSE; } @@ -425,15 +408,16 @@ void wxApp::OnIdle(wxIdleEvent& event) bool wxApp::SendIdleEvents() { bool needMore = FALSE; - wxNode* node = wxTopLevelWindows.First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) + + wxWindowList::Node* node = wxTopLevelWindows.GetFirst(); + while (node) + { + wxWindow* win = node->GetData(); + if (SendIdleEvents(win)) needMore = TRUE; + node = node->GetNext(); + } - node = node->Next(); - } return needMore; } @@ -442,79 +426,84 @@ bool wxApp::SendIdleEvents(wxWindow* win) { bool needMore = FALSE; - wxIdleEvent event; - event.SetEventObject(win); - win->ProcessEvent(event); + 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)) + wxWindowList::Node* node = win->GetChildren().GetFirst(); + while (node) + { + wxWindow* win = node->GetData(); + if (SendIdleEvents(win)) needMore = TRUE; - node = node->Next(); - } + node = node->GetNext(); + } return needMore ; } void wxApp::DeletePendingObjects() { - wxNode *node = wxPendingDelete.First(); + wxList::Node *node = wxPendingDelete.GetFirst(); while (node) { - wxObject *obj = (wxObject *)node->Data(); - - delete obj; + wxObject *obj = node->GetData(); - if (wxPendingDelete.Member(obj)) - delete node; + delete obj; - // Deleting one object may have deleted other pending - // objects, so start from beginning of list again. - node = wxPendingDelete.First(); - } -} + if (wxPendingDelete.Member(obj)) + delete node; -wxLog* wxApp::CreateLogTarget() -{ - return new wxLogGui; + // Deleting one object may have deleted other pending + // objects, so start from beginning of list again. + node = wxPendingDelete.GetFirst(); + } } -wxWindow* wxApp::GetTopWindow() const -{ - if (m_topWindow) - return m_topWindow; - else if (wxTopLevelWindows.Number() > 0) - return (wxWindow*) wxTopLevelWindows.First()->Data(); - else - return NULL; -} +static char *fallbackResources[] = { + "*menuBar.marginHeight: 0", + "*menuBar.shadowThickness: 1", + "*background: #c0c0c0", + "*foreground: black", + NULL +}; // Create an application context bool wxApp::OnInitGui() { + if( !wxAppBase::OnInitGui() ) + return FALSE; + XtToolkitInitialize() ; - wxTheApp->m_appContext = (WXAppContext) XtCreateApplicationContext() ; + wxTheApp->m_appContext = (WXAppContext) XtCreateApplicationContext(); + XtAppSetFallbackResources((XtAppContext) wxTheApp->m_appContext, fallbackResources); + Display *dpy = XtOpenDisplay((XtAppContext) wxTheApp->m_appContext,(String)NULL,NULL, - (const char*) wxTheApp->GetClassName(), NULL, + wxTheApp->GetClassName().c_str(), NULL, 0, # if XtSpecificationRelease < 5 - 0,(Cardinal*) &argc,argv) ; + (Cardinal*) &argc, # else - 0,&argc,argv) ; + &argc, # endif + argv); + if (!dpy) { - cerr << "wxWindows could not open display for " << wxTheApp->GetClassName() << ": exiting.\n"; - exit(-1); + // 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."), + 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; @@ -523,7 +512,8 @@ bool wxApp::OnInitGui() XtAppAddActions((XtAppContext) wxTheApp->m_appContext, &rec, 1); GetMainColormap(dpy); - m_maxRequestSize = XMaxRequestSize((Display*) dpy); + + wxAddIdleCallback(); return TRUE; } @@ -531,72 +521,124 @@ bool wxApp::OnInitGui() WXColormap wxApp::GetMainColormap(WXDisplay* display) { if (!display) /* Must be called first with non-NULL display */ - return m_mainColormap; + return m_mainColormap; - Colormap c = - DefaultColormapOfScreen(XScreenOfDisplay((Display*) display, - DefaultScreen((Display*) display))); + int defaultScreen = DefaultScreen((Display*) display); + Screen* screen = XScreenOfDisplay((Display*) display, defaultScreen); + + Colormap c = DefaultColormapOfScreen(screen); if (!m_mainColormap) - m_mainColormap = (WXColormap) c; + m_mainColormap = (WXColormap) c; return (WXColormap) c; } -// Returns TRUE if an accelerator has been processed -bool wxApp::CheckForAccelerator(WXEvent* event) +wxXVisualInfo* wxApp::GetVisualInfo( 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_perDisplayData->find( display ); - // Find the first wxWindow that corresponds to this event window - while (widget && !(win = wxGetWindowFromTable(widget))) - widget = XtParent(widget); + if( it != m_perDisplayData->end() && it->second.m_visualInfo ) + return it->second.m_visualInfo; - if (!widget || !win) - return FALSE; + wxXVisualInfo* vi = new wxXVisualInfo; + wxFillXVisualInfo( vi, (Display*)display ); - wxKeyEvent keyEvent(wxEVT_CHAR); - wxTranslateKeyEvent(keyEvent, win, (Widget) 0, xEvent); + (*m_perDisplayData)[display].m_visualInfo = vi; - // 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; - } - return FALSE; + return vi; +} + +static void wxTLWidgetDestroyCallback(Widget w, XtPointer clientData, + XtPointer ptr) +{ + if( wxTheApp ) + wxTheApp->SetTopLevelWidget( (WXDisplay*)XtDisplay(w), + (WXWidget)NULL ); +} + +WXWidget wxCreateTopLevelWidget( WXDisplay* display ) +{ + Widget tlw = XtAppCreateShell( (String)NULL, + wxTheApp->GetClassName().c_str(), + applicationShellWidgetClass, + (Display*)display, + NULL, 0 ); + XtSetMappedWhenManaged( tlw, False ); + XtRealizeWidget( tlw ); + + XtAddCallback( tlw, XmNdestroyCallback, + (XtCallbackProc)wxTLWidgetDestroyCallback, + (XtPointer)NULL ); + + return (WXWidget)tlw; +} + +WXWidget wxApp::GetTopLevelWidget() +{ + WXDisplay* display = wxGetDisplay(); + wxPerDisplayDataMap::iterator it = m_perDisplayData->find( display ); + + if( it != m_perDisplayData->end() && it->second.m_topLevelWidget ) + return (WXWidget)it->second.m_topLevelWidget; + + WXWidget tlw = wxCreateTopLevelWidget( display ); + SetTopLevelWidget( display, tlw ); + + return tlw; +} + +void wxApp::SetTopLevelWidget(WXDisplay* display, WXWidget widget) +{ + (*m_perDisplayData)[display].m_topLevelWidget = (Widget)widget; } void wxExit() { int retValue = 0; if (wxTheApp) - retValue = wxTheApp->OnExit(); + retValue = wxTheApp->OnExit(); wxApp::CleanUp(); /* - * Exit in some platform-specific way. Not recommended that the app calls this: - * only for emergencies. - */ + * Exit in some platform-specific way. + * Not recommended that the app calls this: + * only for emergencies. + */ exit(retValue); } // Yield to other processes -bool wxYield() + +bool wxApp::Yield(bool onlyIfNeeded) { + 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(); + wxTheApp->Dispatch(); + + s_inYield = FALSE; + return TRUE; } +// ---------------------------------------------------------------------------- +// accessors for C modules +// ---------------------------------------------------------------------------- + +extern "C" XtAppContext wxGetAppContext() +{ + return (XtAppContext)wxTheApp->GetAppContext(); +}