notebmac.cpp

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

        selNew = nPage;
    else if ( m_nSelection == -1 )
        selNew = 0;

    if ( selNew != -1 )
        SetSelection( selNew );

    InvalidateBestSize();

    return true;
}

int wxNotebook::HitTest(const wxPoint& pt, long * flags) const
{
    int resultV = wxNOT_FOUND;

#if TARGET_API_MAC_OSX
    const int countPages = GetPageCount();

    // we have to convert from Client to Window relative coordinates
    wxPoint adjustedPt = pt + GetClientAreaOrigin();
    // and now to HIView native ones
    adjustedPt.x -= MacGetLeftBorderSize() ;
    adjustedPt.y -= MacGetTopBorderSize() ;

    HIPoint hipoint= { adjustedPt.x , adjustedPt.y } ;
    HIViewPartCode outPart = 0 ;
    OSStatus err = HIViewGetPartHit( m_peer->GetControlRef(), &hipoint, &outPart );

    int max = m_peer->GetMaximum() ;
    if ( outPart == 0 && max > 0 )
    {
        // this is a hack, as unfortunately a hit on an already selected tab returns 0,
        // so we have to go some extra miles to make sure we select something different
        // and try again ..
        int val = m_peer->GetValue() ;
        int maxval = max ;
        if ( max == 1 )
        {
            m_peer->SetMaximum( 2 ) ;
            maxval = 2 ;
        }

        if ( val == 1 )
            m_peer->SetValue( maxval ) ;
        else
             m_peer->SetValue( 1 ) ;

        err = HIViewGetPartHit( m_peer->GetControlRef(), &hipoint, &outPart );

        m_peer->SetValue( val ) ;
        if ( max == 1 )
            m_peer->SetMaximum( 1 ) ;
    }

    if ( outPart >= 1 && outPart <= countPages )
        resultV = outPart - 1 ;
#endif // TARGET_API_MAC_OSX

    if (flags != NULL)
    {
        *flags = 0;

        // we cannot differentiate better
        if (resultV >= 0)
            *flags |= wxBK_HITTEST_ONLABEL;
        else
            *flags |= wxBK_HITTEST_NOWHERE;
    }

    return resultV;
}

// Added by Mark Newsam
// When a page is added or deleted to the notebook this function updates
// information held in the control so that it matches the order
// the user would expect.
//
void wxNotebook::MacSetupTabs()
{
    m_peer->SetMaximum( GetPageCount() ) ;

    wxNotebookPage *page;
    ControlTabInfoRecV1 info;

    const size_t countPages = GetPageCount();
    for (size_t ii = 0; ii < countPages; ii++)
    {
        page = m_pages[ii];
        info.version = kControlTabInfoVersionOne;
        info.iconSuiteID = 0;
        wxMacCFStringHolder cflabel( page->GetLabel(), m_font.GetEncoding() ) ;
        info.name = cflabel ;
        m_peer->SetData<ControlTabInfoRecV1>( ii + 1, kControlTabInfoTag, &info ) ;

        if ( GetImageList() && GetPageImage(ii) >= 0 && UMAGetSystemVersion() >= 0x1020 )
        {
            const wxBitmap bmap = GetImageList()->GetBitmap( GetPageImage( ii ) ) ;
            if ( bmap.Ok() )
            {
                ControlButtonContentInfo info ;

                wxMacCreateBitmapButton( &info, bmap ) ;

                OSStatus err = m_peer->SetData<ControlButtonContentInfo>( ii + 1, kControlTabImageContentTag, &info );
                wxASSERT_MSG( err == noErr , wxT("Error when setting icon on tab") ) ;

                wxMacReleaseBitmapButton( &info ) ;
            }
        }

        m_peer->SetTabEnabled( ii + 1, true ) ;
    }

#if wxMAC_USE_CORE_GRAPHICS
    Refresh();
#else
    Rect bounds;
    m_peer->GetRectInWindowCoords( &bounds ) ;
    InvalWindowRect( (WindowRef)MacGetTopLevelWindowRef(), &bounds );
#endif
}

wxRect wxNotebook::GetPageRect() const
{
    wxSize size = GetClientSize() ;

    return wxRect( 0 , 0 , size.x , size.y ) ;
}

// ----------------------------------------------------------------------------
// wxNotebook callbacks
// ----------------------------------------------------------------------------

// @@@ OnSize() is used for setting the font when it's called for the first
//     time because doing it in ::Create() doesn't work (for unknown reasons)
void wxNotebook::OnSize(wxSizeEvent& event)
{
    unsigned int nCount = m_pages.Count();
    wxRect rect = GetPageRect() ;

    for ( unsigned int nPage = 0; nPage < nCount; nPage++ )
    {
        wxNotebookPage *pPage = m_pages[nPage];
        pPage->SetSize(rect);
        if ( pPage->GetAutoLayout() )
            pPage->Layout();
    }

    // Processing continues to next OnSize
    event.Skip();
}

void wxNotebook::OnSelChange(wxNotebookEvent& event)
{
    // is it our tab control?
    if ( event.GetEventObject() == this )
        ChangePage(event.GetOldSelection(), event.GetSelection());

    // we want to give others a chance to process this message as well
    event.Skip();
}

void wxNotebook::OnSetFocus(wxFocusEvent& event)
{
    // set focus to the currently selected page if any
    if ( m_nSelection != -1 )
        m_pages[m_nSelection]->SetFocus();

    event.Skip();
}

void wxNotebook::OnNavigationKey(wxNavigationKeyEvent& event)
{
    if ( event.IsWindowChange() )
    {
        // change pages
        AdvanceSelection( event.GetDirection() );
    }
    else
    {
        // we get this event in 2 cases
        //
        // a) one of our pages might have generated it because the user TABbed
        // out from it in which case we should propagate the event upwards and
        // our parent will take care of setting the focus to prev/next sibling
        //
        // or
        //
        // b) the parent panel wants to give the focus to us so that we
        // forward it to our selected page. We can't deal with this in
        // OnSetFocus() because we don't know which direction the focus came
        // from in this case and so can't choose between setting the focus to
        // first or last panel child
        wxWindow *parent = GetParent();

        // the cast is here to fix a GCC ICE
        if ( ((wxWindow*)event.GetEventObject()) == parent )
        {
            // no, it doesn't come from child, case (b): forward to a page
            if ( m_nSelection != -1 )
            {
                // so that the page knows that the event comes from it's parent
                // and is being propagated downwards
                event.SetEventObject( this );

                wxWindow *page = m_pages[m_nSelection];
                if ( !page->GetEventHandler()->ProcessEvent( event ) )
                {
                    page->SetFocus();
                }
                //else: page manages focus inside it itself
            }
            else
            {
                // we have no pages - still have to give focus to _something_
                SetFocus();
            }
        }
        else
        {
            // it comes from our child, case (a), pass to the parent
            if ( parent )
            {
                event.SetCurrentFocus( this );
                parent->GetEventHandler()->ProcessEvent( event );
            }
        }
    }
}

// ----------------------------------------------------------------------------
// wxNotebook base class virtuals
// ----------------------------------------------------------------------------

#if wxUSE_CONSTRAINTS

// override these 2 functions to do nothing: everything is done in OnSize

void wxNotebook::SetConstraintSizes(bool WXUNUSED(recurse))
{
    // don't set the sizes of the pages - their correct size is not yet known
    wxControl::SetConstraintSizes( false );
}

bool wxNotebook::DoPhase(int WXUNUSED(nPhase))
{
    return true;
}

#endif // wxUSE_CONSTRAINTS

void wxNotebook::Command(wxCommandEvent& event)
{
    wxFAIL_MSG(wxT("wxNotebook::Command not implemented"));
}

// ----------------------------------------------------------------------------
// wxNotebook helper functions
// ----------------------------------------------------------------------------

// hide the currently active panel and show the new one
void wxNotebook::ChangePage(int nOldSel, int nSel)
{
    if (nOldSel == nSel)
        return;

    if ( nOldSel != -1 )
        m_pages[nOldSel]->Show( false );

    if ( nSel != -1 )
    {
        wxNotebookPage *pPage = m_pages[nSel];
        pPage->Show( true );
        pPage->SetFocus();
    }

    m_nSelection = nSel;
    m_peer->SetValue( m_nSelection + 1 ) ;
}

wxInt32 wxNotebook::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
{
    OSStatus status = eventNotHandledErr ;

    SInt32 newSel = m_peer->GetValue() - 1 ;
    if ( newSel != m_nSelection )
    {
        wxNotebookEvent changing(
            wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, m_windowId,
            newSel , m_nSelection );
        changing.SetEventObject( this );
        GetEventHandler()->ProcessEvent( changing );

        if ( changing.IsAllowed() )
        {
            wxNotebookEvent event(
                wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED, m_windowId,
                newSel, m_nSelection );
            event.SetEventObject( this );
            GetEventHandler()->ProcessEvent( event );
        }
        else
        {
            m_peer->SetValue( m_nSelection + 1 ) ;
        }

        status = noErr ;
    }

    return (wxInt32)status ;
}

#endif