window.cpp

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

// This now returns the whole range, not just the number
// of positions that we can scroll.
int wxWindowMac::GetScrollRange(int orient) const
{
    if ( orient == wxHORIZONTAL )
    {
       if ( m_hScrollBar )
           return m_hScrollBar->GetRange() ;
    }
    else
    {
       if ( m_vScrollBar )
           return m_vScrollBar->GetRange() ;
    }
    return 0;
}

int wxWindowMac::GetScrollThumb(int orient) const
{
    if ( orient == wxHORIZONTAL )
    {
       if ( m_hScrollBar )
           return m_hScrollBar->GetThumbSize() ;
    }
    else
    {
       if ( m_vScrollBar )
           return m_vScrollBar->GetThumbSize() ;
    }
    return 0;
}

void wxWindowMac::SetScrollPos(int orient, int pos, bool refresh)
{
    if ( orient == wxHORIZONTAL )
    {
       if ( m_hScrollBar )
           m_hScrollBar->SetThumbPosition( pos ) ;
    }
    else
    {
       if ( m_vScrollBar )
           m_vScrollBar->SetThumbPosition( pos ) ;
    }
}

void wxWindowMac::MacPaintBorders( int left , int top )
{
    if( IsTopLevel() )
        return ;

    int major,minor;
    wxGetOsVersion( &major, &minor );

    RGBColor white = { 0xFFFF, 0xFFFF , 0xFFFF } ;
    RGBColor face = { 0xDDDD, 0xDDDD , 0xDDDD } ;

    RGBColor darkShadow = { 0x0000, 0x0000 , 0x0000 } ;
    RGBColor lightShadow = { 0x4444, 0x4444 , 0x4444 } ;
    // OS X has lighter border edges than classic:
    if (major >= 10)
    {
        darkShadow.red      = 0x8E8E;
        darkShadow.green    = 0x8E8E;
        darkShadow.blue     = 0x8E8E;
        lightShadow.red     = 0xBDBD;
        lightShadow.green   = 0xBDBD;
        lightShadow.blue    = 0xBDBD;
    }

    PenNormal() ;

    if (HasFlag(wxRAISED_BORDER) || HasFlag( wxSUNKEN_BORDER) || HasFlag(wxDOUBLE_BORDER) )
    {
#if wxMAC_USE_THEME_BORDER
        Rect rect = { top , left , m_height + top , m_width + left } ;
        SInt32 border = 0 ;
        /*
        GetThemeMetric( kThemeMetricListBoxFrameOutset , &border ) ;
        InsetRect( &rect , border , border );
        DrawThemeListBoxFrame(&rect,IsEnabled() ? kThemeStateActive : kThemeStateInactive) ;
        */

        DrawThemePrimaryGroup(&rect  ,IsEnabled() ? kThemeStateActive : kThemeStateInactive) ;
#else
        bool sunken = HasFlag( wxSUNKEN_BORDER ) ;
        RGBForeColor( &face );
        MoveTo( left + 0 , top + m_height - 2 );
        LineTo( left + 0 , top + 0 );
        LineTo( left + m_width - 2 , top + 0 );

        MoveTo( left + 2 , top + m_height - 3 );
        LineTo( left + m_width - 3 , top + m_height - 3 );
        LineTo( left + m_width - 3 , top + 2 );

        RGBForeColor( sunken ? &face : &darkShadow );
        MoveTo( left + 0 , top + m_height - 1 );
        LineTo( left + m_width - 1 , top + m_height - 1 );
        LineTo( left + m_width - 1 , top + 0 );

        RGBForeColor( sunken ? &lightShadow : &white );
        MoveTo( left + 1 , top + m_height - 3 );
        LineTo( left + 1, top + 1 );
        LineTo( left + m_width - 3 , top + 1 );

        RGBForeColor( sunken ? &white : &lightShadow );
        MoveTo( left + 1 , top + m_height - 2 );
        LineTo( left + m_width - 2 , top + m_height - 2 );
        LineTo( left + m_width - 2 , top + 1 );

        RGBForeColor( sunken ? &darkShadow : &face );
        MoveTo( left + 2 , top + m_height - 4 );
        LineTo( left + 2 , top + 2 );
        LineTo( left + m_width - 4 , top + 2 );
#endif
    }
    else if (HasFlag(wxSIMPLE_BORDER))
    {
        Rect rect = { top , left , m_height + top , m_width + left } ;
        RGBForeColor( &darkShadow ) ;
        FrameRect( &rect ) ;
    }
}

void wxWindowMac::RemoveChild( wxWindowBase *child )
{
    if ( child == m_hScrollBar )
        m_hScrollBar = NULL ;
    if ( child == m_vScrollBar )
        m_vScrollBar = NULL ;

    wxWindowBase::RemoveChild( child ) ;
}

// New function that will replace some of the above.
void wxWindowMac::SetScrollbar(int orient, int pos, int thumbVisible,
    int range, bool refresh)
{
    if ( orient == wxHORIZONTAL )
    {
        if ( m_hScrollBar )
        {
            if ( range == 0 || thumbVisible >= range )
            {
                if ( m_hScrollBar->IsShown() )
                    m_hScrollBar->Show(false) ;
            }
            else
            {
                if ( !m_hScrollBar->IsShown() )
                    m_hScrollBar->Show(true) ;
                m_hScrollBar->SetScrollbar( pos , thumbVisible , range , thumbVisible , refresh ) ;
            }
        }
    }
    else
    {
        if ( m_vScrollBar )
        {
            if ( range == 0 || thumbVisible >= range )
            {
                if ( m_vScrollBar->IsShown() )
                    m_vScrollBar->Show(false) ;
            }
            else
            {
                if ( !m_vScrollBar->IsShown() )
                    m_vScrollBar->Show(true) ;
                m_vScrollBar->SetScrollbar( pos , thumbVisible , range , thumbVisible , refresh ) ;
            }
        }
    }
    MacRepositionScrollBars() ;
}

// Does a physical scroll
void wxWindowMac::ScrollWindow(int dx, int dy, const wxRect *rect)
{
    if( dx == 0 && dy ==0 )
        return ;


    {
        wxClientDC dc(this) ;
        wxMacPortSetter helper(&dc) ;

        int width , height ;
        GetClientSize( &width , &height ) ;

        Rect scrollrect = { dc.YLOG2DEVMAC(0) , dc.XLOG2DEVMAC(0) , dc.YLOG2DEVMAC(height) , dc.XLOG2DEVMAC(width) } ;
        RgnHandle updateRgn = NewRgn() ;
        ClipRect( &scrollrect ) ;
        if ( rect )
        {
            Rect r = { dc.YLOG2DEVMAC(rect->y) , dc.XLOG2DEVMAC(rect->x) , dc.YLOG2DEVMAC(rect->y + rect->height) ,
                dc.XLOG2DEVMAC(rect->x + rect->width) } ;
            SectRect( &scrollrect , &r , &scrollrect ) ;
        }
        ScrollRect( &scrollrect , dx , dy , updateRgn ) ;
        // we also have to scroll the update rgn in this rectangle
        // in order not to loose updates
        WindowRef rootWindow = (WindowRef) MacGetRootWindow() ;
        RgnHandle formerUpdateRgn = NewRgn() ;
        RgnHandle scrollRgn = NewRgn() ;
        RectRgn( scrollRgn , &scrollrect ) ;
        GetWindowUpdateRgn( rootWindow , formerUpdateRgn ) ;
        Point pt = {0,0} ;
        LocalToGlobal( &pt ) ;
        OffsetRgn( formerUpdateRgn , -pt.h , -pt.v ) ;
        SectRgn( formerUpdateRgn , scrollRgn , formerUpdateRgn ) ;
        if ( !EmptyRgn( formerUpdateRgn ) )
        {
            MacOffsetRgn( formerUpdateRgn , dx , dy ) ;
            SectRgn( formerUpdateRgn , scrollRgn , formerUpdateRgn ) ;
            InvalWindowRgn(rootWindow  ,  formerUpdateRgn ) ;
        }
        InvalWindowRgn(rootWindow  ,  updateRgn ) ;
        DisposeRgn( updateRgn ) ;
        DisposeRgn( formerUpdateRgn ) ;
        DisposeRgn( scrollRgn ) ;
    }

    for (wxWindowListNode *node = GetChildren().GetFirst(); node; node = node->GetNext())
    {
        wxWindowMac *child = node->GetData();
        if (child == m_vScrollBar) continue;
        if (child == m_hScrollBar) continue;
        if (child->IsTopLevel()) continue;

        int x,y;
        child->GetPosition( &x, &y );
        int w,h;
        child->GetSize( &w, &h );
        if (rect)
        {
            wxRect rc(x,y,w,h);
            if (rect->Intersects(rc))
                child->SetSize( x+dx, y+dy, w, h );
        }
        else
        {
            child->SetSize( x+dx, y+dy, w, h );
        }
    }

    Update() ;

}

void wxWindowMac::MacOnScroll(wxScrollEvent &event )
{
    if ( event.GetEventObject() == m_vScrollBar || event.GetEventObject() == m_hScrollBar )
    {
        wxScrollWinEvent wevent;
        wevent.SetPosition(event.GetPosition());
        wevent.SetOrientation(event.GetOrientation());
        wevent.SetEventObject(this);

        if (event.GetEventType() == wxEVT_SCROLL_TOP)
            wevent.SetEventType( wxEVT_SCROLLWIN_TOP );
        else if (event.GetEventType() == wxEVT_SCROLL_BOTTOM)
            wevent.SetEventType( wxEVT_SCROLLWIN_BOTTOM );
        else if (event.GetEventType() == wxEVT_SCROLL_LINEUP)
            wevent.SetEventType( wxEVT_SCROLLWIN_LINEUP );
        else if (event.GetEventType() == wxEVT_SCROLL_LINEDOWN)
            wevent.SetEventType( wxEVT_SCROLLWIN_LINEDOWN );
        else if (event.GetEventType() == wxEVT_SCROLL_PAGEUP)
            wevent.SetEventType( wxEVT_SCROLLWIN_PAGEUP );
        else if (event.GetEventType() == wxEVT_SCROLL_PAGEDOWN)
            wevent.SetEventType( wxEVT_SCROLLWIN_PAGEDOWN );
        else if (event.GetEventType() == wxEVT_SCROLL_THUMBTRACK)
            wevent.SetEventType( wxEVT_SCROLLWIN_THUMBTRACK );
        else if (event.GetEventType() == wxEVT_SCROLL_THUMBRELEASE)
            wevent.SetEventType( wxEVT_SCROLLWIN_THUMBRELEASE );

        GetEventHandler()->ProcessEvent(wevent);
    }
}

// Get the window with the focus
wxWindowMac *wxWindowBase::DoFindFocus()
{
    return gFocusWindow ;
}

void wxWindowMac::OnSetFocus(wxFocusEvent& event)
{
    // panel wants to track the window which was the last to have focus in it,
    // so we want to set ourselves as the window which last had focus
    //
    // notice that it's also important to do it upwards the tree becaus
    // otherwise when the top level panel gets focus, it won't set it back to
    // us, but to some other sibling

    // CS:don't know if this is still needed:
    //wxChildFocusEvent eventFocus(this);
    //(void)GetEventHandler()->ProcessEvent(eventFocus);

    event.Skip();
}

// Setup background and foreground colours correctly
void wxWindowMac::SetupColours()
{
    if ( GetParent() )
        SetBackgroundColour(GetParent()->GetBackgroundColour());
}

void wxWindowMac::OnInternalIdle()
{
    // This calls the UI-update mechanism (querying windows for
    // menu/toolbar/control state information)
    if (wxUpdateUIEvent::CanUpdate(this))
        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
}

// Raise the window to the top of the Z order
void wxWindowMac::Raise()
{
}

// Lower the window to the bottom of the Z order
void wxWindowMac::Lower()
{
}

void wxWindowMac::DoSetClientSize(int width, int height)
{
    if ( width != -1 || height != -1 )
    {

        if ( width != -1 && m_vScrollBar )
            width += MAC_SCROLLBAR_SIZE ;
        if ( height != -1 && m_vScrollBar )
            height += MAC_SCROLLBAR_SIZE ;

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

        DoSetSize( -1 , -1 , width , height ) ;
    }
}


wxWindowMac* wxWindowMac::s_lastMouseWindow = NULL ;

bool wxWindowMac::MacGetWindowFromPointSub( const wxPoint &point , wxWindowMac** outWin )
{
    if ( IsTopLevel() )
    {
        if ((point.x < 0) || (point.y < 0) ||
            (point.x > (m_width)) || (point.y > (m_height)))
            return false;
    }
    else
    {
        if ((point.x < m_x) || (point.y < m_y) ||
            (point.x > (m_x + m_width)) || (point.y > (m_y + m_height)))
            return false;
    }

    WindowRef window = (WindowRef) MacGetRootWindow() ;

    wxPoint newPoint( point ) ;

    if ( !IsTopLevel() )
    {
        newPoint.x -= m_x;
        newPoint.y -= m_y;
    }

    for (wxWindowListNode *node = GetChildren().GetFirst(); node; node = node->GetNext())
    {
        wxWindowMac *child = node->GetData();
        // added the m_isShown test --dmazzoni
        if ( child->MacGetRootWindow() == (WXWindow) window && child->m_isShown )
        {
            if (child->MacGetWindowFromPointSub(newPoint , outWin ))
                return true;
        }
    }

    *outWin = this ;
    return true;
}

bool wxWindowMac::MacGetWindowFromPoint( const wxPoint &screenpoint , wxWindowMac** outWin )
{
    WindowRef window ;

    Point pt = { screenpoint.y , screenpoint.x } ;
    if ( ::FindWindow( pt , &window ) == 3 )
    {

        wxWindowMac* win = wxFindWinFromMacWindow( (WXWindow) window ) ;
        if ( win )
        {
            // No, this yields the CLIENT are, we need the whole frame. RR.
            // point = win->ScreenToClient( point ) ;

            GrafPtr     port;
            ::GetPort( &port ) ;
            ::SetPort( UMAGetWindowPort( window ) ) ;
            ::GlobalToLocal( &pt ) ;
            ::SetPort( port ) ;

            wxPoint point( pt.h, pt.v ) ;

            return win->MacGetWindowFromPointSub( point , outWin ) ;
        }
    }
    return false ;
}

static wxWindow *gs_lastWhich = NULL;

bool wxWindowMac::MacSetupCursor( const wxPoint& pt)
{
    // first trigger a set cursor event

    wxPoint clientorigin = GetClientAreaOrigin() ;
    wxSize clientsize = GetClientSize() ;
    wxCursor cursor ;
    if ( wxRect2DInt( clientorigin.x , clientorigin.y , clientsize.x , clientsize.y ).Contains( wxPoint2DInt( pt ) ) )
    {
        wxSetCursorEvent event( pt.x , pt.y );

        bool processedEvtSetCursor = GetEventHandler()->ProcessEvent(event);
        if ( processedEvtSetCursor && event.HasCursor() )
        {
            cursor = event.GetCursor() ;
        }
        else
        {

            // the test for processedEvtSetCursor is here to prevent using m_cursor
            // if the user code caught EVT_SET_CURSOR() and returned nothing from
            // it - this is a way to say that our cursor shouldn't be used for this
            // point
            if ( !processedEvtSetCursor && m_cursor.Ok() )
            {
                cursor = m_cursor ;
            }
            if ( wxIsBusy() )
            {
            }
            else
            {
                if ( !GetParent() )
                    cursor = *wxSTANDARD_CURSOR  ;
            }
        }
        if ( cursor.Ok() )
            cursor.MacInstall() ;
    }
    return cursor.Ok() ;
}

bool wxWindowMac::MacDispatchMouseEvent(wxMouseEvent& event)
{
    if ((event.m_x < m_x) || (event.m_y < m_y) ||
        (event.m_x > (m_x + m_width)) || (event.m_y > (m_y + m_height)))
        return false;


    if ( IsKindOf( CLASSINFO ( wxStaticBox ) ) /* || IsKindOf( CLASSINFO( wxSpinCtrl ) ) */)
        return false ;

    WindowRef window = (WindowRef) MacGetRootWindow() ;

    event.m_x -= m_x;
    event.m_y -= m_y;

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

    for (wxWindowListNode *node = GetChildren().GetFirst(); node; node = node->GetNext())
    {
        wxWindowMac *child = node->GetData();
        if ( child->MacGetRootWindow() == (WXWindow) window && child->IsShown() && child->IsEnabled() )
        {
            if (child->MacDispatchMouseEvent(event))
                return true;
        }
    }

    wxWindow* cursorTarget = this ;
    wxPoint cursorPoint( x , y ) ;

    while( cursorTarget && !cursorTarget->MacSetupCursor( cursorPoint ) )
    {
        cursorTarget = cursorTarget->GetParent() ;
        if ( cursorTarget )
            cursorPoint += cursorTarget->GetPosition() ;
    }
    event.m_x = x ;
    event.m_y = y ;
    event.SetEventObject( this ) ;

    if ( event.GetEventType() == wxEVT_LEFT_DOWN )
    {
        // set focus to this window
        if (AcceptsFocus() && FindFocus()!=this)
            SetFocus();
    }

#if wxUSE_TOOLTIPS
    if ( event.GetEventType() == wxEVT_MOTION
        || event.GetEventType() == wxEVT_ENTER_WINDOW
        || event.GetEventType() == wxEVT_LEAVE_WINDOW )
        wxToolTip::RelayEvent( this , event);
#endif // wxUSE_TOOLTIPS

    if (gs_lastWhich != this)
    {
        gs_lastWhich = this;

        // Double clicks must always occur on the same window
        if (event.GetEventType() == wxEVT_LEFT_DCLICK)
            event.SetEventType( wxEVT_LEFT_DOWN );
        if (event.GetEventType() == wxEVT_RIGHT_DCLICK)
            event.SetEventType( wxEVT_RIGHT_DOWN );

        // Same for mouse up events
        if (event.GetEventType() == wxEVT_LEFT_UP)