window.cpp

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

            return true;
        if (event.GetEventType() == wxEVT_RIGHT_UP)
            return true;
    }

    GetEventHandler()->ProcessEvent( event ) ;

    return true;
}

wxString wxWindowMac::MacGetToolTipString( wxPoint &pt )
{
    if ( m_tooltip )
    {
        return m_tooltip->GetTip() ;
    }
    return wxEmptyString ;
}

void wxWindowMac::Update()
{
    wxRegion visRgn = MacGetVisibleRegion( false ) ;
    int top = 0 , left = 0 ;
    MacWindowToRootWindow( &left , &top ) ;
    WindowRef rootWindow = (WindowRef) MacGetRootWindow() ;
    RgnHandle updateRgn = NewRgn() ;
    // getting the update region in macos local coordinates
    GetWindowUpdateRgn( rootWindow , updateRgn ) ;
    GrafPtr     port ;
    ::GetPort( &port ) ;
    ::SetPort( UMAGetWindowPort( rootWindow ) ) ;
    Point pt = {0,0} ;
    LocalToGlobal( &pt ) ;
    ::SetPort( port ) ;
    OffsetRgn( updateRgn , -pt.h , -pt.v ) ;
    // translate to window local coordinates
    OffsetRgn( updateRgn , -left , -top ) ;
    SectRgn( updateRgn , (RgnHandle) visRgn.GetWXHRGN() , updateRgn ) ;
    MacRedraw( updateRgn , 0 , true ) ;
    // for flushing and validating we need macos-local coordinates again
    OffsetRgn( updateRgn , left , top ) ;
#if TARGET_API_MAC_CARBON
    if ( QDIsPortBuffered( GetWindowPort( rootWindow ) ) )
    {
        QDFlushPortBuffer( GetWindowPort( rootWindow ) , updateRgn ) ;
    }
#endif
    ValidWindowRgn( rootWindow , updateRgn ) ;
    DisposeRgn( updateRgn ) ;
}

wxTopLevelWindowMac* wxWindowMac::MacGetTopLevelWindow() const
{
    wxTopLevelWindowMac* win = NULL ;
    WindowRef window = (WindowRef) MacGetRootWindow() ;
    if ( window )
    {
        win = wxFindWinFromMacWindow( (WXWindow) window ) ;
    }
    return win ;
}

const wxRegion& wxWindowMac::MacGetVisibleRegion( bool respectChildrenAndSiblings )
{
    RgnHandle visRgn = NewRgn() ;
    RgnHandle tempRgn = NewRgn() ;
    RgnHandle tempStaticBoxRgn = NewRgn() ;

    if ( MacIsReallyShown() )
    {
        SetRectRgn( visRgn , 0 , 0 , m_width , m_height ) ;

        //TODO : as soon as the new scheme has proven to work correctly, move this to wxStaticBox
        if ( IsKindOf( CLASSINFO( wxStaticBox ) ) )
        {
            int borderTop = 14 ;
            int borderOther = 4 ;
            if ( UMAGetSystemVersion() >= 0x1030 )
                borderTop += 2 ;

            SetRectRgn( tempStaticBoxRgn , borderOther , borderTop , m_width - borderOther , m_height - borderOther ) ;
            DiffRgn( visRgn , tempStaticBoxRgn , visRgn ) ;
        }

        if ( !IsTopLevel() )
        {
            wxWindow* parent = GetParent() ;
            while( parent )
            {
                wxSize size = parent->GetSize() ;
                int x , y ;
                x = y = 0 ;
                parent->MacWindowToRootWindow( &x, &y ) ;
                MacRootWindowToWindow( &x , &y ) ;

                SetRectRgn( tempRgn ,
                    x + parent->MacGetLeftBorderSize() , y + parent->MacGetTopBorderSize() ,
                    x + size.x - parent->MacGetRightBorderSize(),
                    y + size.y - parent->MacGetBottomBorderSize()) ;

                SectRgn( visRgn , tempRgn , visRgn ) ;
                if ( parent->IsTopLevel() )
                    break ;
                parent = parent->GetParent() ;
            }
        }
        if ( respectChildrenAndSiblings )
        {
            if ( GetWindowStyle() & wxCLIP_CHILDREN )
            {
                for (wxWindowListNode *node = GetChildren().GetFirst(); node; node = node->GetNext())
                {
                    wxWindowMac *child = node->GetData();

                    if ( !child->IsTopLevel() && child->IsShown() )
                    {
                        SetRectRgn( tempRgn , child->m_x , child->m_y , child->m_x + child->m_width ,  child->m_y + child->m_height ) ;
                        if ( child->IsKindOf( CLASSINFO( wxStaticBox ) ) )
                        {
                            int borderTop = 14 ;
                            int borderOther = 4 ;
                            if ( UMAGetSystemVersion() >= 0x1030 )
                                borderTop += 2 ;

                            SetRectRgn( tempStaticBoxRgn , child->m_x + borderOther , child->m_y + borderTop , child->m_x + child->m_width - borderOther , child->m_y + child->m_height - borderOther ) ;
                            DiffRgn( tempRgn , tempStaticBoxRgn , tempRgn ) ;
                        }
                        DiffRgn( visRgn , tempRgn , visRgn ) ;
                    }
                }
            }

            if ( (GetWindowStyle() & wxCLIP_SIBLINGS) && GetParent() )
            {
                bool thisWindowThrough = false ;
                for (wxWindowListNode *node = GetParent()->GetChildren().GetFirst(); node; node = node->GetNext())
                {
                    wxWindowMac *sibling = node->GetData();
                    if ( sibling == this )
                    {
                        thisWindowThrough = true ;
                        continue ;
                    }
                    if( !thisWindowThrough )
                    {
                        continue ;
                    }

                    if ( !sibling->IsTopLevel() && sibling->IsShown() )
                    {
                        SetRectRgn( tempRgn , sibling->m_x - m_x , sibling->m_y - m_y , sibling->m_x + sibling->m_width - m_x ,  sibling->m_y + sibling->m_height - m_y ) ;
                        if ( sibling->IsKindOf( CLASSINFO( wxStaticBox ) ) )
                        {
                            int borderTop = 14 ;
                            int borderOther = 4 ;
                            if ( UMAGetSystemVersion() >= 0x1030 )
                                borderTop += 2 ;

                            SetRectRgn( tempStaticBoxRgn , sibling->m_x - m_x + borderOther , sibling->m_y - m_y + borderTop , sibling->m_x + sibling->m_width - m_x - borderOther , sibling->m_y + sibling->m_height - m_y - borderOther ) ;
                            DiffRgn( tempRgn , tempStaticBoxRgn , tempRgn ) ;
                        }
                        DiffRgn( visRgn , tempRgn , visRgn ) ;
                    }
                }
            }
        }
    }
    m_macVisibleRegion = visRgn ;
    DisposeRgn( visRgn ) ;
    DisposeRgn( tempRgn ) ;
    DisposeRgn( tempStaticBoxRgn ) ;
    return m_macVisibleRegion ;
}

void wxWindowMac::MacRedraw( WXHRGN updatergnr , long time, bool erase)
{
    RgnHandle updatergn = (RgnHandle) updatergnr ;
    // updatergn is always already clipped to our boundaries
    // it is in window coordinates, not in client coordinates

    WindowRef window = (WindowRef) MacGetRootWindow() ;

    {
        // ownUpdateRgn is the area that this window has to repaint, it is in window coordinates
        RgnHandle ownUpdateRgn = NewRgn() ;
        CopyRgn( updatergn , ownUpdateRgn ) ;

        SectRgn( ownUpdateRgn , (RgnHandle) MacGetVisibleRegion().GetWXHRGN() , ownUpdateRgn ) ;

        // newupdate is the update region in client coordinates
        RgnHandle newupdate = NewRgn() ;
        wxSize point = GetClientSize() ;
        wxPoint origin = GetClientAreaOrigin() ;
        SetRectRgn( newupdate , origin.x , origin.y , origin.x + point.x , origin.y+point.y ) ;
        SectRgn( newupdate , ownUpdateRgn , newupdate ) ;
        OffsetRgn( newupdate , -origin.x , -origin.y ) ;
        m_updateRegion = newupdate ;
        DisposeRgn( newupdate ) ; // it's been cloned to m_updateRegion

        if ( erase && !EmptyRgn(ownUpdateRgn) )
        {
            wxWindowDC dc(this);
            if (!EmptyRgn(ownUpdateRgn))
                dc.SetClippingRegion(wxRegion(ownUpdateRgn));
            wxEraseEvent eevent( GetId(), &dc );
            eevent.SetEventObject( this );
            GetEventHandler()->ProcessEvent( eevent );

            wxNcPaintEvent eventNc( GetId() );
            eventNc.SetEventObject( this );
            GetEventHandler()->ProcessEvent( eventNc );
        }
        DisposeRgn( ownUpdateRgn ) ;
        if ( !m_updateRegion.Empty() )
        {
            wxWindowList hiddenWindows ;
            for (wxWindowListNode *node = GetChildren().GetFirst(); node; node = node->GetNext())
            {
                wxControl *child = wxDynamicCast( ( wxWindow*)node->GetData() , wxControl ) ;

                if ( child && child->MacGetRootWindow() == (WXWindow) window && child->IsShown() && child->GetMacControl() )
                {
                    SetControlVisibility( (ControlHandle) child->GetMacControl() , false , false ) ;
                    hiddenWindows.Append( child ) ;
                }
            }

            wxPaintEvent event;
            event.SetTimestamp(time);
            event.SetEventObject(this);
            GetEventHandler()->ProcessEvent(event);

            for (wxWindowListNode *node = hiddenWindows.GetFirst(); node; node = node->GetNext())
            {
                wxControl *child = wxDynamicCast( ( wxWindow*)node->GetData() , wxControl ) ;

                if ( child && child->GetMacControl() )
                {
                    SetControlVisibility( (ControlHandle) child->GetMacControl() , true , false ) ;
                }
            }
        }
    }

    // now intersect for each of the children their rect with the updateRgn and call MacRedraw recursively

    RgnHandle childupdate = NewRgn() ;
    for (wxWindowListNode *node = GetChildren().GetFirst(); node; node = node->GetNext())
    {
        // calculate the update region for the child windows by intersecting the window rectangle with our own
        // passed in update region and then offset it to be client-wise window coordinates again
        wxWindowMac *child = node->GetData();
        SetRectRgn( childupdate , child->m_x , child->m_y , child->m_x + child->m_width ,  child->m_y + child->m_height ) ;
        SectRgn( childupdate , updatergn , childupdate ) ;
        OffsetRgn( childupdate , -child->m_x , -child->m_y ) ;
        if ( child->MacGetRootWindow() == (WXWindow) window && child->IsShown() && !EmptyRgn( childupdate ) )
        {
            // because dialogs may also be children
            child->MacRedraw( childupdate , time , erase ) ;
        }
    }
    DisposeRgn( childupdate ) ;
    // eventually a draw grow box here

}

WXWindow wxWindowMac::MacGetRootWindow() const
{
    wxWindowMac *iter = (wxWindowMac*)this ;

    while( iter )
    {
        if ( iter->IsTopLevel() )
            return ((wxTopLevelWindow*)iter)->MacGetWindowRef() ;

        iter = iter->GetParent() ;
    }
    wxASSERT_MSG( 1 , wxT("No valid mac root window") ) ;
    return NULL ;
}

void wxWindowMac::MacCreateScrollBars( long style )
{
    wxASSERT_MSG( m_vScrollBar == NULL && m_hScrollBar == NULL , wxT("attempt to create window twice") ) ;

    bool hasBoth = ( style & wxVSCROLL ) && ( style & wxHSCROLL ) ;
    int adjust = hasBoth ? MAC_SCROLLBAR_SIZE - 1: 0 ;
    int width, height ;
    GetClientSize( &width , &height ) ;

    wxPoint vPoint(width-MAC_SCROLLBAR_SIZE, 0) ;
    wxSize vSize(MAC_SCROLLBAR_SIZE, height - adjust) ;
    wxPoint hPoint(0 , height-MAC_SCROLLBAR_SIZE ) ;
    wxSize hSize( width - adjust, MAC_SCROLLBAR_SIZE) ;

    m_vScrollBar = new wxScrollBar(this, wxWINDOW_VSCROLL, vPoint,
        vSize , wxVERTICAL);

    if ( style & wxVSCROLL )
    {

    }
    else
    {
        m_vScrollBar->Show(false) ;
    }
    m_hScrollBar = new wxScrollBar(this, wxWINDOW_HSCROLL, hPoint,
        hSize , wxHORIZONTAL);
    if ( style  & wxHSCROLL )
    {
    }
    else
    {
        m_hScrollBar->Show(false) ;
    }

    // because the create does not take into account the client area origin
    MacRepositionScrollBars() ; // we might have a real position shift
}

void wxWindowMac::MacRepositionScrollBars()
{
    bool hasBoth = ( m_hScrollBar && m_hScrollBar->IsShown()) && ( m_vScrollBar && m_vScrollBar->IsShown()) ;
    int adjust = hasBoth ? MAC_SCROLLBAR_SIZE - 1 : 0 ;

    // get real client area

    int width = m_width ;
    int height = m_height ;

    width -= MacGetLeftBorderSize() + MacGetRightBorderSize();
    height -= MacGetTopBorderSize() + MacGetBottomBorderSize();

    wxPoint vPoint(width-MAC_SCROLLBAR_SIZE, 0) ;
    wxSize vSize(MAC_SCROLLBAR_SIZE, height - adjust) ;
    wxPoint hPoint(0 , height-MAC_SCROLLBAR_SIZE ) ;
    wxSize hSize( width - adjust, MAC_SCROLLBAR_SIZE) ;

    int x = 0 ;
    int y = 0 ;
    int w = m_width ;
    int h = m_height ;

    MacClientToRootWindow( &x , &y ) ;
    MacClientToRootWindow( &w , &h ) ;

    wxWindowMac *iter = (wxWindowMac*)this ;

    int totW = 10000 , totH = 10000;
    while( iter )
    {
        if ( iter->IsTopLevel() )
        {
            totW = iter->m_width ;
            totH = iter->m_height ;
            break ;
        }

        iter = iter->GetParent() ;
    }

    if ( x == 0 )
    {
        hPoint.x = -1 ;
        hSize.x += 1 ;
    }
    if ( y == 0 )
    {
        vPoint.y = -1 ;
        vSize.y += 1 ;
    }

    if ( w-x >= totW )
    {
        hSize.x += 1 ;
        vPoint.x += 1 ;
    }

    if ( h-y >= totH )
    {
        vSize.y += 1 ;
        hPoint.y += 1 ;
    }

    if ( m_vScrollBar )
    {
        m_vScrollBar->SetSize( vPoint.x , vPoint.y, vSize.x, vSize.y , wxSIZE_ALLOW_MINUS_ONE);
    }
    if ( m_hScrollBar )
    {
        m_hScrollBar->SetSize( hPoint.x , hPoint.y, hSize.x, hSize.y, wxSIZE_ALLOW_MINUS_ONE);
    }
}

bool wxWindowMac::AcceptsFocus() const
{
    return MacCanFocus() && wxWindowBase::AcceptsFocus();
}

WXWidget wxWindowMac::MacGetContainerForEmbedding()
{
    return GetParent()->MacGetContainerForEmbedding() ;
}

void wxWindowMac::MacSuperChangedPosition()
{
    // only window-absolute structures have to be moved i.e. controls

    wxWindowListNode *node = GetChildren().GetFirst();
    while ( node )
    {
        wxWindowMac *child = node->GetData();
        child->MacSuperChangedPosition() ;
        node = node->GetNext();
    }
}

void wxWindowMac::MacTopLevelWindowChangedPosition()
{
    // only screen-absolute structures have to be moved i.e. glcanvas

    wxWindowListNode *node = GetChildren().GetFirst();
    while ( node )
    {
        wxWindowMac *child = node->GetData();
        child->MacTopLevelWindowChangedPosition() ;
        node = node->GetNext();
    }
}
long wxWindowMac::MacGetLeftBorderSize( ) const
{
    if( IsTopLevel() )
        return 0 ;

    if (m_windowStyle & wxRAISED_BORDER || m_windowStyle & wxSUNKEN_BORDER )
    {
        SInt32 border = 3 ;
#if wxMAC_USE_THEME_BORDER
#if TARGET_CARBON
          GetThemeMetric( kThemeMetricListBoxFrameOutset , &border ) ;
#endif
#endif
          return border ;
    }
    else if (  m_windowStyle &wxDOUBLE_BORDER)
    {
          SInt32 border = 3 ;
#if wxMAC_USE_THEME_BORDER
#if TARGET_CARBON
          GetThemeMetric( kThemeMetricListBoxFrameOutset , &border ) ;
#endif
#endif
          return border ;
    }
    else if (m_windowStyle &wxSIMPLE_BORDER)
    {
        return 1 ;
    }
    return 0 ;
}

long wxWindowMac::MacGetRightBorderSize( ) const
{
    // they are all symmetric in mac themes
    return MacGetLeftBorderSize() ;
}

long wxWindowMac::MacGetTopBorderSize( ) const
{
    // they are all symmetric in mac themes
    return MacGetLeftBorderSize() ;
}

long wxWindowMac::MacGetBottomBorderSize( ) const
{
    // they are all symmetric in mac themes
    return MacGetLeftBorderSize() ;
}

long wxWindowMac::MacRemoveBordersFromStyle( long style )
{
    return style & ~( wxDOUBLE_BORDER | wxSUNKEN_BORDER | wxRAISED_BORDER | wxBORDER | wxSTATIC_BORDER ) ;
}

// Find the wxWindowMac at the current mouse position, returning the mouse
// position.
wxWindowMac* wxFindWindowAtPointer(wxPoint& pt)
{
    pt = wxGetMousePosition();
    wxWindowMac* found = wxFindWindowAtPoint(pt);
    return found;
}

// Get the current mouse position.
wxPoint wxGetMousePosition()
{
    int x, y;
    wxGetMousePosition(& x, & y);
    return wxPoint(x, y);
}

void wxWindowMac::OnMouseEvent( wxMouseEvent &event )
{
    if ( event.GetEventType() == wxEVT_RIGHT_DOWN )
    {
        // copied from wxGTK : CS
        // generate a "context menu" event: this is similar to wxEVT_RIGHT_DOWN
        // except that:
        //
        // (a) it's a command event and so is propagated to the parent
        // (b) under MSW it can be generated from kbd too
        // (c) it uses screen coords (because of (a))
        wxContextMenuEvent evtCtx(wxEVT_CONTEXT_MENU,
                                  this->GetId(),
                                  this->ClientToScreen(event.GetPosition()));
        if ( ! GetEventHandler()->ProcessEvent(evtCtx) )
            event.Skip() ;
    }
    else
    {
        event.Skip() ;
    }
}