app.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

        case kEventMouseUp :
        {
            if ( wxTheApp->s_captureWindow )
                wxMacWindowEventHandler( handler , event , (void*) wxTheApp->s_captureWindow->MacGetTopLevelWindow() ) ;
        }
        break ;
        case kEventMouseMoved :
        {
            wxTheApp->MacHandleMouseMovedEvent( point.h , point.v , modifiers , EventTimeToTicks( GetEventTime( event ) ) ) ;
            result = noErr ;
            break ;
        }
        break ;
    }

    return result ;
}

static pascal OSStatus CommandEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    OSStatus result = eventNotHandledErr ;

    HICommand command ;

    GetEventParameter( event, kEventParamDirectObject, typeHICommand, NULL,
        sizeof( HICommand ), NULL, &command );

    MenuCommand id = command.commandID ;
    if ( id == kHICommandPreferences )
        id = wxApp::s_macPreferencesMenuItemId ;

    wxMenuBar* mbar = wxMenuBar::MacGetInstalledMenuBar() ;
    wxMenu* menu = NULL ;
    wxMenuItem* item = NULL ;

    if ( mbar )
    {
        item = mbar->FindItem( id , &menu ) ;
        // it is not 100 % sure that an menu of id 0 is really ours, safety check
        if ( id == 0 && menu != NULL && menu->GetHMenu() != command.menu.menuRef )
        {
            item = NULL ;
            menu = NULL ;
        }
    }

    if ( item == NULL || menu == NULL || mbar == NULL )
        return result ;

       switch( GetEventKind( event ) )
       {
           case kEventProcessCommand :
           {
                if (item->IsCheckable())
                {
                    item->Check( !item->IsChecked() ) ;
                }

                menu->SendEvent( id , item->IsCheckable() ? item->IsChecked() : -1 ) ;
                result = noErr ;
            }
               break ;
        case kEventCommandUpdateStatus:
            // eventually trigger an updateui round
            result = noErr ;
            break ;
           default :
               break ;
       }

    return result ;
}

static pascal OSStatus ApplicationEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    OSStatus result = eventNotHandledErr ;
    switch ( GetEventKind( event ) )
    {
        case kEventAppActivated :
            {
                if ( wxTheApp )
                    wxTheApp->MacResume( true ) ;
                result = noErr ;
            }
            break ;
        case kEventAppDeactivated :
            {
                if ( wxTheApp )
                    wxTheApp->MacSuspend( true ) ;
                result = noErr ;
            }
            break ;
        default :
            break ;
    }
    return result ;
}

pascal OSStatus wxAppEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    OSStatus result = eventNotHandledErr ;
    switch( GetEventClass( event ) )
    {
        case kEventClassCommand :
            result = CommandEventHandler( handler , event , data ) ;
            break ;
        case kEventClassApplication :
            result = ApplicationEventHandler( handler , event , data ) ;
            break ;
        case kEventClassMenu :
            result = MenuEventHandler( handler , event , data ) ;
            break ;
        case kEventClassMouse :
            result = MouseEventHandler( handler , event , data ) ;
            break ;
        case kEventClassAppleEvent :
            {
                EventRecord rec ;
                wxMacConvertEventToRecord( event , &rec ) ;
                result = AEProcessAppleEvent( &rec ) ;
            }
            break ;
        default :
            break ;
    }

    return result ;
}

DEFINE_ONE_SHOT_HANDLER_GETTER( wxAppEventHandler )

#endif

#if defined(WXMAKINGDLL_CORE) && !defined(__DARWIN__)
// we know it's there ;-)
WXIMPORT char std::__throws_bad_alloc ;
#endif

bool wxApp::Initialize(int& argc, wxChar **argv)
{
    int error = 0 ;

    // Mac-specific

    UMAInitToolbox( 4, sm_isEmbedded ) ;
    SetEventMask( everyEvent ) ;
    UMAShowWatchCursor() ;

#if defined(WXMAKINGDLL_CORE) && defined(__DARWIN__)
    // open shared library resources from here since we don't have
    //   __wxinitialize in Mach-O shared libraries
    wxStAppResource::OpenSharedLibraryResource(NULL);
#endif

#ifndef __DARWIN__
    // test the minimal configuration necessary

#  if !TARGET_CARBON
    long theSystem ;
    long theMachine;

    if (Gestalt(gestaltMachineType, &theMachine) != noErr)
    {
        error = kMacSTRWrongMachine;
    }
    else if (theMachine < gestaltMacPlus)
    {
        error = kMacSTRWrongMachine;
    }
    else if (Gestalt(gestaltSystemVersion, &theSystem) != noErr )
    {
        error = kMacSTROldSystem  ;
    }
    else if ( theSystem < 0x0860 )
    {
        error = kMacSTROldSystem  ;
    }
    else if ((long)GetApplLimit() - (long)ApplicationZone() < kMacMinHeap)
    {
        error = kMacSTRSmallSize;
    }
#  endif
    /*
    else
    {
        if ( !UMAHasAppearance() )
        {
            error = kMacSTRNoPre8Yet ;
        }
    }
    */
#endif

    // if we encountered any problems so far, give the error code and exit immediately

  if ( error )
  {
        wxStAppResource resload ;
        short itemHit;
        Str255 message;

        GetIndString(message, 128, error);
        UMAShowArrowCursor() ;
        ParamText("\pFatal Error", message, (ConstStr255Param)"\p", (ConstStr255Param)"\p");
        itemHit = Alert(128, nil);
        return false ;
  }

#ifndef __DARWIN__
#  if __option(profile)
    ProfilerInit( collectDetailed, bestTimeBase , 40000 , 50 ) ;
#  endif
#endif

#ifndef __DARWIN__
    // now avoid exceptions thrown for new (bad_alloc)
    // FIXME CS for some changes outside wxMac does not compile anymore
#if 0
    std::__throws_bad_alloc = 0 ;
#endif

#endif

    s_macCursorRgn = ::NewRgn() ;

    // Mac OS X passes a process serial number command line argument when
    // the application is launched from the Finder. This argument must be
    // removed from the command line arguments before being handled by the
    // application (otherwise applications would need to handle it)
    if ( argc > 1 )
    {
        static const wxChar *ARG_PSN = _T("-psn_");
        if ( wxStrncmp(argv[1], ARG_PSN, wxStrlen(ARG_PSN)) == 0 )
        {
            // remove this argument
            --argc;
            memmove(argv + 1, argv + 2, argc * sizeof(char *));
        }
    }

    if ( !wxAppBase::Initialize(argc, argv) )
        return false;

#if wxUSE_INTL
    wxFont::SetDefaultEncoding(wxLocale::GetSystemEncoding());
#endif


    wxWinMacWindowList = new wxList(wxKEY_INTEGER);
    wxWinMacControlList = new wxList(wxKEY_INTEGER);

    wxMacCreateNotifierTable() ;

    UMAShowArrowCursor() ;

    return true;
}

bool wxApp::OnInitGui()
{
    if( !wxAppBase::OnInitGui() )
        return false ;

#if TARGET_CARBON
    InstallStandardEventHandler( GetApplicationEventTarget() ) ;

    if (!sm_isEmbedded)
    {
        InstallApplicationEventHandler(
            GetwxAppEventHandlerUPP(),
            GetEventTypeCount(eventList), eventList, wxTheApp, (EventHandlerRef *)&(wxTheApp->m_macEventHandler));
    }
#endif

    if (!sm_isEmbedded)
    {
#if defined(UNIVERSAL_INTERFACES_VERSION) && (UNIVERSAL_INTERFACES_VERSION >= 0x0340)
        AEInstallEventHandler( kCoreEventClass , kAEOpenDocuments ,
                               NewAEEventHandlerUPP(AEHandleODoc) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEOpenApplication ,
                               NewAEEventHandlerUPP(AEHandleOApp) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEPrintDocuments ,
                               NewAEEventHandlerUPP(AEHandlePDoc) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEReopenApplication ,
                               NewAEEventHandlerUPP(AEHandleRApp) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEQuitApplication ,
                               NewAEEventHandlerUPP(AEHandleQuit) ,
                               0 , FALSE ) ;
#else
        AEInstallEventHandler( kCoreEventClass , kAEOpenDocuments ,
                               NewAEEventHandlerProc(AEHandleODoc) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEOpenApplication ,
                               NewAEEventHandlerProc(AEHandleOApp) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEPrintDocuments ,
                               NewAEEventHandlerProc(AEHandlePDoc) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEReopenApplication ,
                               NewAEEventHandlerProc(AEHandleRApp) ,
                               0 , FALSE ) ;
        AEInstallEventHandler( kCoreEventClass , kAEQuitApplication ,
                               NewAEEventHandlerProc(AEHandleQuit) ,
                               0 , FALSE ) ;
#endif
    }

    return true ;
}

void wxApp::CleanUp()
{
    wxToolTip::RemoveToolTips() ;

    // One last chance for pending objects to be cleaned up
    wxTheApp->DeletePendingObjects();

    wxMacDestroyNotifierTable() ;

    delete wxWinMacWindowList ;
    wxWinMacWindowList = NULL;

    delete wxWinMacControlList ;
    wxWinMacControlList = NULL;

#ifndef __DARWIN__
#  if __option(profile)
    ProfilerDump( (StringPtr)"\papp.prof" ) ;
    ProfilerTerm() ;
#  endif
#endif

#if defined(WXMAKINGDLL_CORE) && defined(__DARWIN__)
    // close shared library resources from here since we don't have
    //   __wxterminate in Mach-O shared libraries
    wxStAppResource::CloseSharedLibraryResource();
#endif

    UMACleanupToolbox() ;
    if (s_macCursorRgn) {
        ::DisposeRgn((RgnHandle)s_macCursorRgn);
    }

    #if 0
        TerminateAE() ;
    #endif

    wxAppBase::CleanUp();
}

//----------------------------------------------------------------------
// misc initialization stuff
//----------------------------------------------------------------------

// extern variable for shared library resource id
// need to be able to find it with NSLookupAndBindSymbol
short gSharedLibraryResource = kResFileNotOpened ;

#if defined(WXMAKINGDLL_CORE) && defined(__DARWIN__)
CFBundleRef gSharedLibraryBundle = NULL;
#endif /* WXMAKINGDLL_CORE && __DARWIN__ */

wxStAppResource::wxStAppResource()
{
    m_currentRefNum = CurResFile() ;
    if ( gSharedLibraryResource != kResFileNotOpened )
    {
        UseResFile( gSharedLibraryResource ) ;
    }
}

wxStAppResource::~wxStAppResource()
{
    if ( m_currentRefNum != kResFileNotOpened )
    {
        UseResFile( m_currentRefNum ) ;
    }
}

void wxStAppResource::OpenSharedLibraryResource(const void *initBlock)
{
    gSharedLibraryResource = kResFileNotOpened;

#ifdef WXMAKINGDLL_CORE
    if ( initBlock != NULL ) {
        const CFragInitBlock *theInitBlock = (const CFragInitBlock *)initBlock;
        FSSpec *fileSpec = NULL;

        if (theInitBlock->fragLocator.where == kDataForkCFragLocator) {
            fileSpec = theInitBlock->fragLocator.u.onDisk.fileSpec;
        }
        else if (theInitBlock->fragLocator.where == kResourceCFragLocator) {
            fileSpec = theInitBlock->fragLocator.u.inSegs.fileSpec;
        }

        if (fileSpec != NULL) {
            gSharedLibraryResource =  FSpOpenResFile(fileSpec, fsRdPerm);
        }
    }
    else {
#ifdef __DARWIN__
        // Open the shared library resource file if it is not yet open
        NSSymbol    theSymbol;
        NSModule    theModule;
        const char *theLibPath;

        gSharedLibraryBundle = CFBundleGetBundleWithIdentifier(CFSTR("com.wxwindows.wxWidgets"));
        if (gSharedLibraryBundle != NULL) {
            // wxWidgets has been bundled into a framework
            //   load the framework resources

            gSharedLibraryResource = CFBundleOpenBundleResourceMap(gSharedLibraryBundle);
        }
        else {
            // wxWidgets is a simple dynamic shared library
            //   load the resources from the data fork of a separate resource file
            wxString theResPath;
            wxString theName;
            FSRef  theResRef;
            OSErr  theErr = noErr;

            // get the library path
            theSymbol = NSLookupAndBindSymbol("_gSharedLibraryResource");
            theModule = NSModuleForSymbol(theSymbol);
            theLibPath = NSLibraryNameForModule(theModule);

            // if we call wxLogDebug from here then, as wxTheApp hasn't been
            // created yet when we're called from wxApp::Initialize(), wxLog
            // is going to create a default stderr-based log target instead of
            // the expected normal GUI one -- don't do it, if we really want