toplevel.cpp

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

        if ( plainTransition )
           ::HideWindow( (WindowRef)m_macWindow );
        else
           ::TransitionWindow( (WindowRef)m_macWindow, kWindowZoomTransitionEffect, kWindowHideTransitionAction, NULL );
    }

    MacPropagateVisibilityChanged() ;

    return true ;
}

bool wxTopLevelWindowMac::ShowFullScreen(bool show, long style)
{
    if ( show )
    {
        FullScreenData *data = (FullScreenData *)m_macFullScreenData ;
        delete data ;
        data = new FullScreenData() ;

        m_macFullScreenData = data ;
        data->m_position = GetPosition() ;
        data->m_size = GetSize() ;
        data->m_wasResizable = MacGetWindowAttributes() & kWindowResizableAttribute ;

        if ( style & wxFULLSCREEN_NOMENUBAR )
            HideMenuBar() ;

        wxRect client = wxGetClientDisplayRect() ;

        int left , top , right , bottom ;
        int x, y, w, h ;

        x = client.x ;
        y = client.y ;
        w = client.width ;
        h = client.height ;

        MacGetContentAreaInset( left , top , right , bottom ) ;

        if ( style & wxFULLSCREEN_NOCAPTION )
        {
            y -= top ;
            h += top ;
        }

        if ( style & wxFULLSCREEN_NOBORDER )
        {
            x -= left ;
            w += left + right ;
            h += bottom ;
        }

        if ( style & wxFULLSCREEN_NOTOOLBAR )
        {
            // TODO
        }

        if ( style & wxFULLSCREEN_NOSTATUSBAR )
        {
            // TODO
        }

        SetSize( x , y , w, h ) ;
        if ( data->m_wasResizable )
            MacChangeWindowAttributes( kWindowNoAttributes , kWindowResizableAttribute ) ;
    }
    else
    {
        ShowMenuBar() ;
        FullScreenData *data = (FullScreenData *) m_macFullScreenData ;
        if ( data->m_wasResizable )
            MacChangeWindowAttributes( kWindowResizableAttribute ,  kWindowNoAttributes ) ;
        SetPosition( data->m_position ) ;
        SetSize( data->m_size ) ;

        delete data ;
        m_macFullScreenData = NULL ;
    }

    return false;
}

bool wxTopLevelWindowMac::IsFullScreen() const
{
    return m_macFullScreenData != NULL ;
}


bool wxTopLevelWindowMac::SetTransparent(wxByte alpha)
{
    OSStatus result = SetWindowAlpha((WindowRef)m_macWindow, float(alpha)/255.0);
    return result == noErr;
}


bool wxTopLevelWindowMac::CanSetTransparent()
{
    return true;
}


void wxTopLevelWindowMac::SetExtraStyle(long exStyle)
{
    if ( GetExtraStyle() == exStyle )
        return ;

    wxTopLevelWindowBase::SetExtraStyle( exStyle ) ;

#if TARGET_API_MAC_OSX
    if ( m_macWindow != NULL )
    {
        bool metal = GetExtraStyle() & wxFRAME_EX_METAL ;
        if ( MacGetMetalAppearance() != metal )
            MacSetMetalAppearance( metal ) ;
    }
#endif
}

// TODO: switch to structure bounds -
// we are still using coordinates of the content view
//
void wxTopLevelWindowMac::MacGetContentAreaInset( int &left , int &top , int &right , int &bottom )
{
    Rect content, structure ;

    GetWindowBounds( (WindowRef) m_macWindow, kWindowStructureRgn , &structure ) ;
    GetWindowBounds( (WindowRef) m_macWindow, kWindowContentRgn , &content ) ;

    left = content.left - structure.left ;
    top = content.top  - structure.top ;
    right = structure.right - content.right ;
    bottom = structure.bottom - content.bottom ;
}

void wxTopLevelWindowMac::DoMoveWindow(int x, int y, int width, int height)
{
    m_cachedClippedRectValid = false ;
    Rect bounds = { y , x , y + height , x + width } ;
    verify_noerr(SetWindowBounds( (WindowRef) m_macWindow, kWindowStructureRgn , &bounds )) ;
    wxWindowMac::MacSuperChangedPosition() ; // like this only children will be notified
}

void wxTopLevelWindowMac::DoGetPosition( int *x, int *y ) const
{
    Rect bounds ;

    verify_noerr(GetWindowBounds((WindowRef) m_macWindow, kWindowStructureRgn , &bounds )) ;

    if (x)
       *x = bounds.left ;
    if (y)
       *y = bounds.top ;
}

void wxTopLevelWindowMac::DoGetSize( int *width, int *height ) const
{
    Rect bounds ;

    verify_noerr(GetWindowBounds((WindowRef) m_macWindow, kWindowStructureRgn , &bounds )) ;

    if (width)
       *width = bounds.right - bounds.left ;
    if (height)
       *height = bounds.bottom - bounds.top ;
}

void wxTopLevelWindowMac::DoGetClientSize( int *width, int *height ) const
{
    Rect bounds ;

    verify_noerr(GetWindowBounds((WindowRef) m_macWindow, kWindowContentRgn , &bounds )) ;

    if (width)
       *width = bounds.right - bounds.left ;
    if (height)
       *height = bounds.bottom - bounds.top ;
}

void wxTopLevelWindowMac::MacSetMetalAppearance( bool set )
{
#if TARGET_API_MAC_OSX
    MacChangeWindowAttributes( set ? kWindowMetalAttribute : kWindowNoAttributes ,
        set ? kWindowNoAttributes : kWindowMetalAttribute ) ;
#endif
}

bool wxTopLevelWindowMac::MacGetMetalAppearance() const
{
#if TARGET_API_MAC_OSX
    return MacGetWindowAttributes() & kWindowMetalAttribute ;
#else
    return false ;
#endif
}

void wxTopLevelWindowMac::MacChangeWindowAttributes( wxUint32 attributesToSet , wxUint32 attributesToClear )
{
    ChangeWindowAttributes( (WindowRef)m_macWindow, attributesToSet, attributesToClear ) ;
}

wxUint32 wxTopLevelWindowMac::MacGetWindowAttributes() const
{
    UInt32 attr = 0 ;
    GetWindowAttributes( (WindowRef) m_macWindow, &attr ) ;

    return attr ;
}

void wxTopLevelWindowMac::MacPerformUpdates()
{
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_3
    // for composited windows this also triggers a redraw of all
    // invalid views in the window
    if ( UMAGetSystemVersion() >= 0x1030 )
        HIWindowFlush((WindowRef) m_macWindow) ;
    else
#endif
    {
        // the only way to trigger the redrawing on earlier systems is to call
        // ReceiveNextEvent

        EventRef currentEvent = (EventRef) wxTheApp->MacGetCurrentEvent() ;
        UInt32 currentEventClass = 0 ;
        if ( currentEvent != NULL )
        {
            currentEventClass = ::GetEventClass( currentEvent ) ;
            ::GetEventKind( currentEvent ) ;
        }

        if ( currentEventClass != kEventClassMenu )
        {
            // when tracking a menu, strange redraw errors occur if we flush now, so leave..
            EventRef theEvent;
            ReceiveNextEvent( 0 , NULL , kEventDurationNoWait , false , &theEvent ) ;
        }
    }
}

// Attracts the users attention to this window if the application is
// inactive (should be called when a background event occurs)

static pascal void wxMacNMResponse( NMRecPtr ptr )
{
    NMRemove( ptr ) ;
    DisposePtr( (Ptr)ptr ) ;
}

void wxTopLevelWindowMac::RequestUserAttention(int flags )
{
    NMRecPtr notificationRequest = (NMRecPtr) NewPtr( sizeof( NMRec) ) ;
    static wxMacNMUPP nmupp( wxMacNMResponse );

    memset( notificationRequest , 0 , sizeof(*notificationRequest) ) ;
    notificationRequest->qType = nmType ;
    notificationRequest->nmMark = 1 ;
    notificationRequest->nmIcon = 0 ;
    notificationRequest->nmSound = 0 ;
    notificationRequest->nmStr = NULL ;
    notificationRequest->nmResp = nmupp ;

    verify_noerr( NMInstall( notificationRequest ) ) ;
}

// ---------------------------------------------------------------------------
// Shape implementation
// ---------------------------------------------------------------------------


bool wxTopLevelWindowMac::SetShape(const wxRegion& region)
{
    wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
                 _T("Shaped windows must be created with the wxFRAME_SHAPED style."));

    // The empty region signifies that the shape
    // should be removed from the window.
    if ( region.IsEmpty() )
    {
        wxSize sz = GetClientSize();
        wxRegion rgn(0, 0, sz.x, sz.y);
        if ( rgn.IsEmpty() )
            return false ;
        else
            return SetShape(rgn);
    }

    // Make a copy of the region
    RgnHandle  shapeRegion = NewRgn();
    CopyRgn( (RgnHandle)region.GetWXHRGN(), shapeRegion );

    // Dispose of any shape region we may already have
    RgnHandle oldRgn = (RgnHandle)GetWRefCon( (WindowRef)MacGetWindowRef() );
    if ( oldRgn )
        DisposeRgn(oldRgn);

    // Save the region so we can use it later
    SetWRefCon((WindowRef)MacGetWindowRef(), (URefCon)shapeRegion);

    // inform the window manager that the window has changed shape
    ReshapeCustomWindow((WindowRef)MacGetWindowRef());

    return true;
}

// ---------------------------------------------------------------------------
// Support functions for shaped windows, based on Apple's CustomWindow sample at
// http://developer.apple.com/samplecode/Sample_Code/Human_Interface_Toolbox/Mac_OS_High_Level_Toolbox/CustomWindow.htm
// ---------------------------------------------------------------------------

static void wxShapedMacWindowGetPos(WindowRef window, Rect* inRect)
{
    GetWindowPortBounds(window, inRect);
    Point pt = { inRect->top ,inRect->left };
    wxMacLocalToGlobal( window, &pt ) ;
    inRect->bottom += pt.v - inRect->top;
    inRect->right += pt.h - inRect->left;
    inRect->top = pt.v;
    inRect->left = pt.h;
}

static SInt32 wxShapedMacWindowGetFeatures(WindowRef window, SInt32 param)
{
    /*------------------------------------------------------
        Define which options your custom window supports.
    --------------------------------------------------------*/
    //just enable everything for our demo
    *(OptionBits*)param =
        //kWindowCanGrow |
        //kWindowCanZoom |
        //kWindowCanCollapse |
        //kWindowCanGetWindowRegion |
        //kWindowHasTitleBar |
        //kWindowSupportsDragHilite |
        kWindowCanDrawInCurrentPort |
        //kWindowCanMeasureTitle |
        kWindowWantsDisposeAtProcessDeath |
        kWindowSupportsGetGrowImageRegion |
        kWindowDefSupportsColorGrafPort;

    return 1;
}

// The content region is left as a rectangle matching the window size, this is
// so the origin in the paint event, and etc. still matches what the
// programmer expects.
static void wxShapedMacWindowContentRegion(WindowRef window, RgnHandle rgn)
{
    SetEmptyRgn(rgn);
    wxTopLevelWindowMac* win = wxFindWinFromMacWindow(window);
    if (win)
    {
        Rect r ;
        wxShapedMacWindowGetPos( window, &r ) ;
        RectRgn( rgn , &r ) ;
    }
}

// The structure region is set to the shape given to the SetShape method.
static void wxShapedMacWindowStructureRegion(WindowRef window, RgnHandle rgn)
{
    RgnHandle cachedRegion = (RgnHandle) GetWRefCon(window);

    SetEmptyRgn(rgn);
    if (cachedRegion)
    {
        Rect windowRect;
        wxShapedMacWindowGetPos(window, &windowRect);    // how big is the window
        CopyRgn(cachedRegion, rgn);                      // make a copy of our cached region
        OffsetRgn(rgn, windowRect.left, windowRect.top); // position it over window
        //MapRgn(rgn, &mMaskSize, &windowRect);          //scale it to our actual window size
    }
}

static SInt32 wxShapedMacWindowGetRegion(WindowRef window, SInt32 param)
{
    GetWindowRegionPtr rgnRec = (GetWindowRegionPtr)param;

    if (rgnRec == NULL)
        return paramErr;

    switch (rgnRec->regionCode)
    {
        case kWindowStructureRgn:
            wxShapedMacWindowStructureRegion(window, rgnRec->winRgn);
            break;

        case kWindowContentRgn:
            wxShapedMacWindowContentRegion(window, rgnRec->winRgn);
            break;

        default:
            SetEmptyRgn(rgnRec->winRgn);
            break;
    }

    return noErr;
}

// Determine the region of the window which was hit
//
static SInt32 wxShapedMacWindowHitTest(WindowRef window, SInt32 param)
{
    Point hitPoint;
    static RgnHandle tempRgn = NULL;

    if (tempRgn == NULL)
        tempRgn = NewRgn();

    // get the point clicked
    SetPt( &hitPoint, LoWord(param), HiWord(param) );

     // Mac OS 8.5 or later
    wxShapedMacWindowStructureRegion(window, tempRgn);
    if (PtInRgn( hitPoint, tempRgn )) //in window content region?
        return wInContent;

    // no significant area was hit
    return wNoHit;
}

static pascal long wxShapedMacWindowDef(short varCode, WindowRef window, SInt16 message, SInt32 param)
{
    switch (message)
    {
        case kWindowMsgHitTest:
            return wxShapedMacWindowHitTest(window, param);

        case kWindowMsgGetFeatures:
            return wxShapedMacWindowGetFeatures(window, param);

        // kWindowMsgGetRegion is sent during CreateCustomWindow and ReshapeCustomWindow
        case kWindowMsgGetRegion:
            return wxShapedMacWindowGetRegion(window, param);

        default:
            break;
    }

    return 0;
}