control.cpp

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

}

void wxControl::MacAdjustControlRect()
{
    wxASSERT_MSG( (ControlHandle) m_macControl != NULL , wxT("No valid mac control") ) ;
    if ( m_width == -1 || m_height == -1 )
    {
        Rect    bestsize = { 0 , 0 , 0 , 0 } ;
        short   baselineoffset ;

        ::GetBestControlRect( (ControlHandle) m_macControl , &bestsize , &baselineoffset ) ;

        if ( EmptyRect( &bestsize ) )
        {
            baselineoffset = 0;
            bestsize.left = bestsize.top = 0 ;
            bestsize.right = 16 ;
            bestsize.bottom = 16 ;
            if ( IsKindOf( CLASSINFO( wxScrollBar ) ) )
            {
                bestsize.bottom = 16 ;
            }
            else if ( IsKindOf( CLASSINFO( wxSpinButton ) ) )
            {
                bestsize.bottom = 24 ;
            }
        }

        if ( m_width == -1 )
        {
            if ( IsKindOf( CLASSINFO( wxButton ) ) )
            {
                m_width = m_label.length() * 8 + 12 ;
                if ( m_width < 70 )
                  m_width = 70 ;
            }
            else if ( IsKindOf( CLASSINFO( wxStaticText ) ) )
            {
                m_width = m_label.length() * 8 ;
            }
            else
                m_width = bestsize.right - bestsize.left ;

            m_width += 2 * m_macHorizontalBorder + MacGetLeftBorderSize() + MacGetRightBorderSize() ;
        }
        if ( m_height == -1 )
        {
            m_height = bestsize.bottom - bestsize.top ;
            if ( m_height < 10 )
                m_height = 13 ;

            m_height += 2 * m_macVerticalBorder + MacGetTopBorderSize() + MacGetBottomBorderSize() ;
        }
        MacUpdateDimensions() ;
    }
}

WXWidget wxControl::MacGetContainerForEmbedding()
{
    if ( m_macControl )
        return m_macControl ;

    return wxWindow::MacGetContainerForEmbedding() ;
}

void wxControl::MacUpdateDimensions()
{
    // actually in the current systems this should never be possible, but later reparenting
    // may become a reality

    if ( (ControlHandle) m_macControl == NULL )
        return ;

    if ( GetParent() == NULL )
        return ;

    WindowRef rootwindow = (WindowRef) MacGetRootWindow() ;
    if ( rootwindow == NULL )
        return ;

    Rect oldBounds ;
    GetControlBounds( (ControlHandle) m_macControl , &oldBounds ) ;

    int new_x = m_x + MacGetLeftBorderSize() + m_macHorizontalBorder ;
    int new_y = m_y + MacGetTopBorderSize() + m_macVerticalBorder ;
    int new_width = m_width - MacGetLeftBorderSize() - MacGetRightBorderSize() - 2 * m_macHorizontalBorder ;
    int new_height = m_height - MacGetTopBorderSize() - MacGetBottomBorderSize() - 2 * m_macVerticalBorder ;

    GetParent()->MacWindowToRootWindow( & new_x , & new_y ) ;
    bool doMove = new_x != oldBounds.left || new_y != oldBounds.top ;
    bool doResize =  ( oldBounds.right - oldBounds.left ) != new_width || (oldBounds.bottom - oldBounds.top ) != new_height ;
    if ( doMove || doResize )
    {
        InvalWindowRect( rootwindow, &oldBounds ) ;
        if ( doMove )
        {
            UMAMoveControl( (ControlHandle) m_macControl , new_x , new_y ) ;
        }
        if ( doResize )
        {
            UMASizeControl( (ControlHandle) m_macControl , new_width , new_height ) ;
        }
    }
}

void wxControl::MacSuperChangedPosition()
{
     MacUpdateDimensions() ;
    wxWindow::MacSuperChangedPosition() ;
}

void wxControl::MacSuperEnabled( bool enabled )
{
    Refresh(false) ;
    wxWindow::MacSuperEnabled( enabled ) ;
}

void wxControl::MacSuperShown( bool show )
{
    if ( (ControlHandle) m_macControl )
    {
        if ( !show )
        {
            if ( m_macControlIsShown )
            {
                ::UMAHideControl( (ControlHandle) m_macControl ) ;
                m_macControlIsShown = false ;
            }
        }
        else
        {
            if ( MacIsReallyShown() && !m_macControlIsShown )
            {
                ::UMAShowControl( (ControlHandle) m_macControl ) ;
                m_macControlIsShown = true ;
            }
        }
    }

    wxWindow::MacSuperShown( show ) ;
}

void  wxControl::DoSetSize(int x, int y,
            int width, int height,
            int sizeFlags )
{
    wxWindow::DoSetSize( x , y ,width , height ,sizeFlags ) ;
#if 0
    {
        Rect meta , control ;
        GetControlBounds( (ControlHandle) m_macControl , &control ) ;
        RgnHandle rgn = NewRgn() ;
        GetControlRegion( (ControlHandle) m_macControl , kControlStructureMetaPart , rgn ) ;
        GetRegionBounds( rgn , &meta ) ;
        if ( !EmptyRect( &meta ) )
        {
            wxASSERT( meta.left >= control.left - m_macHorizontalBorder ) ;
            wxASSERT( meta.right <= control.right + m_macHorizontalBorder ) ;
            wxASSERT( meta.top >= control.top - m_macVerticalBorder ) ;
            wxASSERT( meta.bottom <= control.bottom + m_macVerticalBorder ) ;
        }
        DisposeRgn( rgn ) ;
    }
#endif
    return ;
}

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

    if ( (ControlHandle) m_macControl )
    {
        if ( !show )
        {
            if ( m_macControlIsShown )
            {
                ::UMAHideControl( (ControlHandle) m_macControl ) ;
                m_macControlIsShown = false ;
            }
        }
        else
        {
            if ( MacIsReallyShown() && !m_macControlIsShown )
            {
                ::UMAShowControl( (ControlHandle) m_macControl ) ;
                m_macControlIsShown = true ;
            }
        }
    }
    return true ;
}

bool  wxControl::Enable(bool enable)
{
    if ( !wxWindow::Enable(enable) )
        return false;

    if ( (ControlHandle) m_macControl )
    {
        if ( enable )
            UMAActivateControl( (ControlHandle) m_macControl ) ;
        else
            UMADeactivateControl( (ControlHandle) m_macControl ) ;
    }
    return true ;
}

void wxControl::Refresh(bool eraseBack, const wxRect *rect)
{
    wxWindow::Refresh( eraseBack , rect ) ;
}

void wxControl::MacRedrawControl()
{
    if ( (ControlHandle) m_macControl && MacGetRootWindow() && m_macControlIsShown )
    {
        wxClientDC dc(this) ;
        wxMacPortSetter helper(&dc) ;
        wxMacWindowClipper clipper(this) ;
        wxDC::MacSetupBackgroundForCurrentPort( MacGetBackgroundBrush() ) ;
        UMADrawControl( (ControlHandle) m_macControl ) ;
    }
}

void wxControl::OnPaint(wxPaintEvent& event)
{
    if ( (ControlHandle) m_macControl )
    {
        wxPaintDC dc(this) ;
        wxMacPortSetter helper(&dc) ;
        wxMacWindowClipper clipper(this) ;
        wxDC::MacSetupBackgroundForCurrentPort( MacGetBackgroundBrush() ) ;
        UMADrawControl( (ControlHandle) m_macControl ) ;
    }
    else
    {
      event.Skip() ;
    }
}
void wxControl::OnEraseBackground(wxEraseEvent& event)
{
    wxWindow::OnEraseBackground( event ) ;
}

void  wxControl::OnKeyDown( wxKeyEvent &event )
{
    if ( (ControlHandle) m_macControl == NULL )
        return ;

#if TARGET_CARBON

    char charCode ;
    UInt32 keyCode ;
    UInt32 modifiers ;

    GetEventParameter( (EventRef) wxTheApp->MacGetCurrentEvent(), kEventParamKeyMacCharCodes, typeChar, NULL,sizeof(char), NULL,&charCode );
    GetEventParameter( (EventRef) wxTheApp->MacGetCurrentEvent(), kEventParamKeyCode, typeUInt32, NULL,  sizeof(UInt32), NULL, &keyCode );
       GetEventParameter((EventRef) wxTheApp->MacGetCurrentEvent(), kEventParamKeyModifiers, typeUInt32, NULL, sizeof(UInt32), NULL, &modifiers);

    ::HandleControlKey( (ControlHandle) m_macControl , keyCode , charCode , modifiers ) ;

#else
    EventRecord *ev = (EventRecord*) wxTheApp->MacGetCurrentEvent() ;
    short keycode ;
    short keychar ;
    keychar = short(ev->message & charCodeMask);
    keycode = short(ev->message & keyCodeMask) >> 8 ;

    ::HandleControlKey( (ControlHandle) m_macControl , keycode , keychar , ev->modifiers ) ;
#endif
}

void  wxControl::OnMouseEvent( wxMouseEvent &event )
{
    if ( (ControlHandle) m_macControl == NULL )
    {
        event.Skip() ;
        return ;
    }

    if (event.GetEventType() == wxEVT_LEFT_DOWN || event.GetEventType() == wxEVT_LEFT_DCLICK )
    {

        int x = event.m_x ;
        int y = event.m_y ;

        MacClientToRootWindow( &x , &y ) ;

        ControlHandle   control ;
        Point       localwhere ;
        SInt16      controlpart ;

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

        short modifiers = 0;

        if ( !event.m_leftDown && !event.m_rightDown )
            modifiers  |= btnState ;

        if ( event.m_shiftDown )
            modifiers |= shiftKey ;

        if ( event.m_controlDown )
            modifiers |= controlKey ;

        if ( event.m_altDown )
            modifiers |= optionKey ;

        if ( event.m_metaDown )
            modifiers |= cmdKey ;
        {
            control = (ControlHandle) m_macControl ;
            if ( control && ::IsControlActive( control ) )
            {
                {
                    controlpart = ::HandleControlClick( control , localwhere , modifiers , (ControlActionUPP) -1 ) ;
                    wxTheApp->s_lastMouseDown = 0 ;
                    if ( control && controlpart != kControlNoPart )
                    {
                        MacHandleControlClick( (WXWidget) control , controlpart , false /* mouse not down anymore */ ) ;
                    }
                }
            }
        }
    }
    else
    {
        event.Skip() ;
    }
}

bool wxControl::MacCanFocus() const
{
    if ( (ControlHandle) m_macControl == NULL )
        return true ;
    else
        return false ;
}

void wxControl::MacHandleControlClick( WXWidget control , wxInt16 controlpart , bool WXUNUSED( mouseStillDown ) )
{
    wxASSERT_MSG( (ControlHandle) m_macControl != NULL , wxT("No valid mac control") ) ;
}

void wxControl::DoSetWindowVariant( wxWindowVariant variant )
{
    if ( m_macControl == NULL )
    {
        wxWindow::SetWindowVariant( variant ) ;
        return ;

    }
    m_windowVariant = variant ;

    ControlSize size ;
    ControlFontStyleRec fontStyle;
    fontStyle.flags = kControlUseFontMask  ;

    // we will get that from the settings later
    // and make this NORMAL later, but first
    // we have a few calculations that we must fix

    if ( variant == wxWINDOW_VARIANT_NORMAL )
    {
        if ( IsKindOf( CLASSINFO( wxScrollBar ) ) )
            variant  = wxWINDOW_VARIANT_NORMAL ;
        else
            variant = wxWINDOW_VARIANT_SMALL ;
    }

    switch ( variant )
    {
        case wxWINDOW_VARIANT_NORMAL :
            size = kControlSizeNormal;
            fontStyle.font = kControlFontBigSystemFont;
            break ;
        case wxWINDOW_VARIANT_SMALL :
            size = kControlSizeSmall;
            fontStyle.font = kControlFontSmallSystemFont;
            break ;
        case wxWINDOW_VARIANT_MINI :
           if (UMAGetSystemVersion() >= 0x1030 )
            {
                size = 3 ; // not always defined in the header
                fontStyle.font = -5 ; // not always defined in the header
            }
            else
            {
                size = kControlSizeSmall;
                fontStyle.font = kControlFontSmallSystemFont;
            }
            break;
            break ;
        case wxWINDOW_VARIANT_LARGE :
            size = kControlSizeLarge;
            fontStyle.font = kControlFontBigSystemFont;
            break ;
        default:
            wxFAIL_MSG(_T("unexpected window variant"));
            break ;
    }
    ::SetControlData( (ControlHandle) m_macControl , kControlEntireControl, kControlSizeTag, sizeof( ControlSize ), &size );
    ::SetControlFontStyle( (ControlHandle) m_macControl , &fontStyle );
}