toplevel.cpp

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

#if 0 //  having problems right now with that
    if (HasFlag(wxSTAY_ON_TOP))
        wclass = kUtilityWindowClass;
#endif
#endif

    //this setup lets us have compositing and non-compositing
    //windows in the same application.

#if UNIVERSAL_INTERFACES_VERSION >= 0x0400
    if ( wxTopLevelWindowMac::s_macWindowCompositing )
    {
        attr |= kWindowCompositingAttribute;
        m_macUsesCompositing = true;
    }
    else
#endif
    {
        m_macUsesCompositing = false;
    }

#if TARGET_CARBON
    if ( HasFlag(wxFRAME_SHAPED) )
    {
        WindowDefSpec customWindowDefSpec;
        customWindowDefSpec.defType = kWindowDefProcPtr;
        customWindowDefSpec.u.defProc = NewWindowDefUPP(wxShapedMacWindowDef);

        err = ::CreateCustomWindow( &customWindowDefSpec, wclass,
                              attr, &theBoundsRect,
                              (WindowRef*) &m_macWindow);
    }
    else
#endif
    {
        err = ::CreateNewWindow( wclass , attr , &theBoundsRect , (WindowRef*)&m_macWindow ) ;
    }

    wxCHECK_RET( err == noErr, wxT("Mac OS error when trying to create new window") );
    wxAssociateWinWithMacWindow( (WindowRef) m_macWindow , this ) ;
    UMASetWTitle( (WindowRef)m_macWindow , title , m_font.GetEncoding() ) ;
    if ( wxTopLevelWindowMac::s_macWindowCompositing )
    {
        ::GetRootControl( (WindowRef)m_macWindow, (ControlHandle*)&m_macRootControl ) ;
    }
    else
    {
        ::CreateRootControl( (WindowRef)m_macWindow , (ControlHandle*)&m_macRootControl ) ;
    }
#if TARGET_CARBON
    InstallStandardEventHandler( GetWindowEventTarget(MAC_WXHWND(m_macWindow)) ) ;
    InstallWindowEventHandler(MAC_WXHWND(m_macWindow), GetwxMacWindowEventHandlerUPP(),
        GetEventTypeCount(eventList), eventList, this, (EventHandlerRef *)&m_macEventHandler);
#endif
    m_macFocus = NULL ;


#if TARGET_CARBON
    if ( HasFlag(wxFRAME_SHAPED) )
    {
        // default shape matches the window size
        wxRegion rgn(0, 0, m_width, m_height);
        SetShape(rgn);
    }
#endif

    wxWindowCreateEvent event(this);
    GetEventHandler()->ProcessEvent(event);
}

bool wxTopLevelWindowMac::MacEnableCompositing( bool useCompositing )
{
    bool oldval = s_macWindowCompositing;
    s_macWindowCompositing = useCompositing;
    return oldval;
}

void wxTopLevelWindowMac::MacGetPortParams(WXPOINTPTR localOrigin, WXRECTPTR clipRect, WXWindow *window  , wxWindowMac** rootwin)
{
    ((Point*)localOrigin)->h = 0;
    ((Point*)localOrigin)->v = 0;
    ((Rect*)clipRect)->left = 0;
    ((Rect*)clipRect)->top = 0;
    ((Rect*)clipRect)->right = m_width;
    ((Rect*)clipRect)->bottom = m_height;
    *window = m_macWindow ;
    *rootwin = this ;
}

void wxTopLevelWindowMac::ClearBackground()
{
    wxWindow::ClearBackground() ;
}

WXWidget wxTopLevelWindowMac::MacGetContainerForEmbedding()
{
    return m_macRootControl ;
}


void wxTopLevelWindowMac::MacUpdate( long timestamp)
{
    wxMacPortStateHelper help( (GrafPtr) GetWindowPort( (WindowRef) m_macWindow) ) ;

    RgnHandle       visRgn = NewRgn() ;
    GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), visRgn );
    BeginUpdate( (WindowRef)m_macWindow ) ;

    RgnHandle       updateRgn = NewRgn();
    RgnHandle       diffRgn = NewRgn() ;

    if ( updateRgn && diffRgn )
    {
#if 1
        // macos internal control redraws clean up areas we'd like to redraw ourselves
        // therefore we pick the boundary rect and make sure we can redraw it
        // this has to be intersected by the visRgn in order to avoid drawing over its own
        // boundaries
        RgnHandle trueUpdateRgn = NewRgn() ;
        Rect trueUpdateRgnBoundary ;
        GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), trueUpdateRgn );
        GetRegionBounds( trueUpdateRgn , &trueUpdateRgnBoundary ) ;
        RectRgn( updateRgn , &trueUpdateRgnBoundary ) ;
        SectRgn( updateRgn , visRgn , updateRgn ) ;
        if ( trueUpdateRgn )
            DisposeRgn( trueUpdateRgn ) ;
        SetPortVisibleRegion(  GetWindowPort( (WindowRef)m_macWindow ), updateRgn ) ;
#else
        GetPortVisibleRegion( GetWindowPort( (WindowRef)m_macWindow ), updateRgn );
#endif
        DiffRgn( updateRgn , (RgnHandle) m_macNoEraseUpdateRgn , diffRgn ) ;
        if ( !EmptyRgn( updateRgn ) )
        {
            MacRedraw( updateRgn , timestamp , m_macNeedsErasing || !EmptyRgn( diffRgn )  ) ;
        }
    }
    if ( updateRgn )
        DisposeRgn( updateRgn );
    if ( diffRgn )
        DisposeRgn( diffRgn );
    if ( visRgn )
        DisposeRgn( visRgn ) ;

    EndUpdate( (WindowRef)m_macWindow ) ;
    SetEmptyRgn( (RgnHandle) m_macNoEraseUpdateRgn ) ;
    m_macNeedsErasing = false ;
}


// Raise the window to the top of the Z order
void wxTopLevelWindowMac::Raise()
{
    ::SelectWindow( (WindowRef)m_macWindow ) ;
}

// Lower the window to the bottom of the Z order
void wxTopLevelWindowMac::Lower()
{
    ::SendBehind( (WindowRef)m_macWindow , NULL ) ;
}

void wxTopLevelWindowMac::MacFireMouseEvent(
    wxUint16 kind , wxInt32 x , wxInt32 y ,wxUint32 modifiers , long timestamp )
{
    wxMouseEvent event(wxEVT_LEFT_DOWN);
    bool isDown = !(modifiers & btnState) ; // 1 is for up
    bool controlDown = modifiers & controlKey ; // for simulating right mouse

    event.m_leftDown = isDown && !controlDown;

    event.m_middleDown = false;
    event.m_rightDown = isDown && controlDown;

    if ( kind == mouseDown )
    {
        if ( controlDown )
            event.SetEventType(wxEVT_RIGHT_DOWN ) ;
        else
            event.SetEventType(wxEVT_LEFT_DOWN ) ;
    }
    else if ( kind == mouseUp )
    {
        if ( controlDown )
            event.SetEventType(wxEVT_RIGHT_UP ) ;
        else
            event.SetEventType(wxEVT_LEFT_UP ) ;
    }
    else
    {
        event.SetEventType(wxEVT_MOTION ) ;
    }

    event.m_shiftDown = modifiers & shiftKey;
    event.m_controlDown = modifiers & controlKey;
    event.m_altDown = modifiers & optionKey;
    event.m_metaDown = modifiers & cmdKey;

    Point       localwhere ;
    localwhere.h = x ;
    localwhere.v = y ;

    GrafPtr     port ;
    ::GetPort( &port ) ;
    ::SetPort( UMAGetWindowPort( (WindowRef)m_macWindow ) ) ;
    ::GlobalToLocal( &localwhere ) ;
    ::SetPort( port ) ;

    if ( kind == mouseDown )
    {
        if ( timestamp - gs_lastWhen <= (long) GetDblTime() )
        {
            if ( abs( localwhere.h - gs_lastWhere.h ) < 3 && abs( localwhere.v - gs_lastWhere.v ) < 3 )
            {
                // This is not right if the second mouse down
                // event occurred in a different window. We
                // correct this in MacDispatchMouseEvent.
                if ( controlDown )
                    event.SetEventType(wxEVT_RIGHT_DCLICK ) ;
                else
                    event.SetEventType(wxEVT_LEFT_DCLICK ) ;
            }
            gs_lastWhen = 0 ;
        }
        else
        {
            gs_lastWhen = timestamp ;
        }
        gs_lastWhere = localwhere ;
    }

    event.m_x = localwhere.h;
    event.m_y = localwhere.v;
    event.m_x += m_x;
    event.m_y += m_y;

    event.SetTimestamp(timestamp);
    event.SetEventObject(this);
    if ( wxTheApp->s_captureWindow )
    {
        int x = event.m_x ;
        int y = event.m_y ;
        wxTheApp->s_captureWindow->ScreenToClient( &x , &y ) ;
        event.m_x = x ;
        event.m_y = y ;
        event.SetEventObject( wxTheApp->s_captureWindow ) ;
        wxTheApp->s_captureWindow->GetEventHandler()->ProcessEvent( event ) ;

        if ( kind == mouseUp )
        {
            wxTheApp->s_captureWindow = NULL ;
            if ( !wxIsBusy() )
            {
                m_cursor.MacInstall() ;
            }
        }
    }
    else
    {
        MacDispatchMouseEvent( event ) ;
    }
}

#if !TARGET_CARBON

void wxTopLevelWindowMac::MacMouseDown( WXEVENTREF ev , short part)
{
    MacFireMouseEvent( mouseDown , ((EventRecord*)ev)->where.h , ((EventRecord*)ev)->where.v ,
        ((EventRecord*)ev)->modifiers , ((EventRecord*)ev)->when ) ;
}

void wxTopLevelWindowMac::MacMouseUp( WXEVENTREF ev , short part)
{
    switch (part)
    {
        case inContent:
            {
                MacFireMouseEvent( mouseUp , ((EventRecord*)ev)->where.h , ((EventRecord*)ev)->where.v ,
                    ((EventRecord*)ev)->modifiers , ((EventRecord*)ev)->when ) ;
            }
            break ;
    }
}

void wxTopLevelWindowMac::MacMouseMoved( WXEVENTREF ev , short part)
{
    switch (part)
    {
        case inContent:
            {
                MacFireMouseEvent( nullEvent /*moved*/ , ((EventRecord*)ev)->where.h , ((EventRecord*)ev)->where.v ,
                    ((EventRecord*)ev)->modifiers , ((EventRecord*)ev)->when ) ;
            }
            break ;
    }
}

#endif

void wxTopLevelWindowMac::MacDelayedDeactivation(long timestamp)
{
    if(s_macDeactivateWindow)
    {
        wxLogDebug(wxT("Doing delayed deactivation of %p"),s_macDeactivateWindow);
        s_macDeactivateWindow->MacActivate(timestamp, false);
    }
}

void wxTopLevelWindowMac::MacActivate( long timestamp , bool inIsActivating )
{
    // wxLogDebug(wxT("TopLevel=%p::MacActivate"),this);

    if(s_macDeactivateWindow==this)
        s_macDeactivateWindow=NULL;
    MacDelayedDeactivation(timestamp);
    wxActivateEvent event(wxEVT_ACTIVATE, inIsActivating , m_windowId);
    event.SetTimestamp(timestamp);
    event.SetEventObject(this);

    GetEventHandler()->ProcessEvent(event);

    UMAHighlightAndActivateWindow( (WindowRef)m_macWindow , inIsActivating ) ;

    // Early versions of MacOS X don't refresh backgrounds properly,
    // so refresh the whole window on activation and deactivation.
    long osVersion = UMAGetSystemVersion();
    if (osVersion >= 0x1000 && osVersion < 0x1020 )
    {
        Refresh(true);
    }
    else
    {
        // for the moment we have to resolve some redrawing issues like this
        // the OS is stealing some redrawing areas as soon as it draws a control
        Refresh(true);
    }
}

#if !TARGET_CARBON

void wxTopLevelWindowMac::MacKeyDown( WXEVENTREF ev )
{
}

#endif

void wxTopLevelWindowMac::SetTitle(const wxString& title)
{
    wxWindow::SetLabel( title ) ;
    UMASetWTitle( (WindowRef)m_macWindow , title , m_font.GetEncoding() ) ;
}

wxString wxTopLevelWindowMac::GetTitle() const
{
    return wxWindow::GetLabel();
}

bool wxTopLevelWindowMac::Show(bool show)
{
    if ( !wxWindow::Show(show) )
        return false;

    if (show)
    {
        #if wxUSE_SYSTEM_OPTIONS    //code contributed by Ryan Wilcox December 18, 2003
        if ( (wxSystemOptions::HasOption(wxMAC_WINDOW_PLAIN_TRANSITION) ) && ( wxSystemOptions::GetOptionInt( wxMAC_WINDOW_PLAIN_TRANSITION ) == 1) )
        {
           ::ShowWindow( (WindowRef)m_macWindow );