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[wxWidgets.git] / src / mac / carbon / window.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/carbon/window.cpp
// Purpose:     wxWindowMac
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id$
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#include "wx/window.h"

#ifndef WX_PRECOMP
    #include "wx/log.h"
    #include "wx/app.h"
    #include "wx/utils.h"
    #include "wx/panel.h"
    #include "wx/frame.h"
    #include "wx/dc.h"
    #include "wx/dcclient.h"
    #include "wx/button.h"
    #include "wx/menu.h"
    #include "wx/dialog.h"
    #include "wx/settings.h"
    #include "wx/msgdlg.h"
    #include "wx/scrolbar.h"
    #include "wx/statbox.h"
    #include "wx/textctrl.h"
    #include "wx/toolbar.h"
    #include "wx/layout.h"
    #include "wx/statusbr.h"
    #include "wx/menuitem.h"
    #include "wx/treectrl.h"
    #include "wx/listctrl.h"
#endif

#include "wx/tooltip.h"
#include "wx/spinctrl.h"
#include "wx/geometry.h"

#if wxUSE_LISTCTRL
    #include "wx/listctrl.h"
#endif

#if wxUSE_TREECTRL
    #include "wx/treectrl.h"
#endif

#if wxUSE_CARET
    #include "wx/caret.h"
#endif

#if wxUSE_POPUPWIN
    #include "wx/popupwin.h"
#endif

#if wxUSE_DRAG_AND_DROP
#include "wx/dnd.h"
#endif

#include "wx/mac/uma.h"

#define MAC_SCROLLBAR_SIZE 15
#define MAC_SMALL_SCROLLBAR_SIZE 11

#include <string.h>

#ifdef __WXUNIVERSAL__
    IMPLEMENT_ABSTRACT_CLASS(wxWindowMac, wxWindowBase)
#else
    IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowBase)
#endif

BEGIN_EVENT_TABLE(wxWindowMac, wxWindowBase)
    EVT_NC_PAINT(wxWindowMac::OnNcPaint)
    EVT_ERASE_BACKGROUND(wxWindowMac::OnEraseBackground)
    EVT_PAINT(wxWindowMac::OnPaint)
    EVT_MOUSE_EVENTS(wxWindowMac::OnMouseEvent)
END_EVENT_TABLE()

#define wxMAC_DEBUG_REDRAW 0
#ifndef wxMAC_DEBUG_REDRAW
#define wxMAC_DEBUG_REDRAW 0
#endif

// ---------------------------------------------------------------------------
// Utility Routines to move between different coordinate systems
// ---------------------------------------------------------------------------

/*
 * Right now we have the following setup :
 * a border that is not part of the native control is always outside the
 * control's border (otherwise we loose all native intelligence, future ways
 * may be to have a second embedding control responsible for drawing borders
 * and backgrounds eventually)
 * so all this border calculations have to be taken into account when calling
 * native methods or getting native oriented data
 * so we have three coordinate systems here
 * wx client coordinates
 * wx window coordinates (including window frames)
 * native coordinates
 */

//
// originating from native control
//


void wxMacNativeToWindow( const wxWindow* window , RgnHandle handle )
{
    OffsetRgn( handle , window->MacGetLeftBorderSize() , window->MacGetTopBorderSize() ) ;
}

void wxMacNativeToWindow( const wxWindow* window , Rect *rect )
{
    OffsetRect( rect , window->MacGetLeftBorderSize() , window->MacGetTopBorderSize() ) ;
}

//
// directed towards native control
//

void wxMacWindowToNative( const wxWindow* window , RgnHandle handle )
{
    OffsetRgn( handle , -window->MacGetLeftBorderSize() , -window->MacGetTopBorderSize() );
}

void wxMacWindowToNative( const wxWindow* window , Rect *rect )
{
    OffsetRect( rect , -window->MacGetLeftBorderSize() , -window->MacGetTopBorderSize() ) ;
}

// ---------------------------------------------------------------------------
// Carbon Events
// ---------------------------------------------------------------------------

static const EventTypeSpec eventList[] =
{
    { kEventClassCommand, kEventProcessCommand } ,
    { kEventClassCommand, kEventCommandUpdateStatus } ,

    { kEventClassControl , kEventControlGetClickActivation } ,
    { kEventClassControl , kEventControlHit } ,

    { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent } ,
    { kEventClassTextInput, kEventTextInputUpdateActiveInputArea } ,

    { kEventClassControl , kEventControlDraw } ,

    { kEventClassControl , kEventControlVisibilityChanged } ,
    { kEventClassControl , kEventControlEnabledStateChanged } ,
    { kEventClassControl , kEventControlHiliteChanged } ,

    { kEventClassControl , kEventControlActivate } ,
    { kEventClassControl , kEventControlDeactivate } ,

    { kEventClassControl , kEventControlSetFocusPart } ,
    { kEventClassControl , kEventControlFocusPartChanged } ,

    { kEventClassService , kEventServiceGetTypes },
    { kEventClassService , kEventServiceCopy },
    { kEventClassService , kEventServicePaste },

//    { kEventClassControl , kEventControlInvalidateForSizeChange } , // 10.3 only
//    { kEventClassControl , kEventControlBoundsChanged } ,
} ;

static pascal OSStatus wxMacWindowControlEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    OSStatus result = eventNotHandledErr ;

    wxMacCarbonEvent cEvent( event ) ;

    ControlRef controlRef ;
    wxWindowMac* thisWindow = (wxWindowMac*) data ;

    cEvent.GetParameter( kEventParamDirectObject , &controlRef ) ;

    switch ( GetEventKind( event ) )
    {
        case kEventControlDraw :
            {
                RgnHandle updateRgn = NULL ;
                RgnHandle allocatedRgn = NULL ;
                wxRegion visRegion = thisWindow->MacGetVisibleRegion() ;

                if ( cEvent.GetParameter<RgnHandle>(kEventParamRgnHandle, &updateRgn) != noErr )
                {
                    HIShapeGetAsQDRgn( visRegion.GetWXHRGN(), updateRgn );
                }
                else
                {
                    if ( thisWindow->MacGetLeftBorderSize() != 0 || thisWindow->MacGetTopBorderSize() != 0 )
                    {
                        // as this update region is in native window locals we must adapt it to wx window local
                        allocatedRgn = NewRgn() ;
                        CopyRgn( updateRgn , allocatedRgn ) ;

                        // hide the given region by the new region that must be shifted
                        wxMacNativeToWindow( thisWindow , allocatedRgn ) ;
                        updateRgn = allocatedRgn ;
                    }
                }

#if wxMAC_DEBUG_REDRAW
                if ( thisWindow->MacIsUserPane() )
                {
                    static float color = 0.5 ;
                    static channel = 0 ;
                    HIRect bounds;
                    CGContextRef cgContext = cEvent.GetParameter<CGContextRef>(kEventParamCGContextRef) ;

                    HIViewGetBounds( controlRef, &bounds );
                    CGContextSetRGBFillColor( cgContext, channel == 0 ? color : 0.5 ,
                        channel == 1 ? color : 0.5 , channel == 2 ? color : 0.5 , 1 );
                    CGContextFillRect( cgContext, bounds );
                    color += 0.1 ;
                    if ( color > 0.9 )
                    {
                        color = 0.5 ;
                        channel++ ;
                        if ( channel == 3 )
                            channel = 0 ;
                    }
                }
#endif

                {
                    bool created = false ;
                    CGContextRef cgContext = NULL ;
                    OSStatus err = cEvent.GetParameter<CGContextRef>(kEventParamCGContextRef, &cgContext) ;
                    wxASSERT_MSG( err == noErr , wxT("Unable to retrieve CGContextRef") ) ;
                    thisWindow->MacSetCGContextRef( cgContext ) ;

                    {
                        wxMacCGContextStateSaver sg( cgContext ) ;
                        float alpha = 1.0 ;
                        {
                            wxWindow* iter = thisWindow ;
                            while ( iter )
                            {
                                alpha *= (float) iter->GetTransparent()/255.0 ;
                                if ( iter->IsTopLevel() )
                                    iter = NULL ;
                                else
                                    iter = iter->GetParent() ;
                            }
                        }
                        CGContextSetAlpha( cgContext , alpha ) ;

                        if ( thisWindow->GetBackgroundStyle() == wxBG_STYLE_TRANSPARENT )
                        {
                            HIRect bounds;
                            HIViewGetBounds( controlRef, &bounds );
                            CGContextClearRect( cgContext, bounds );
                        }



                        if ( thisWindow->MacDoRedraw( updateRgn , cEvent.GetTicks() ) )
                            result = noErr ;

                        thisWindow->MacSetCGContextRef( NULL ) ;
                    }

                    if ( created )
                        CGContextRelease( cgContext ) ;
                }

                if ( allocatedRgn )
                    DisposeRgn( allocatedRgn ) ;
            }
            break ;

        case kEventControlVisibilityChanged :
            // we might have two native controls attributed to the same wxWindow instance
            // eg a scrollview and an embedded textview, make sure we only fire for the 'outer'
            // control, as otherwise native and wx visibility are different
            if ( thisWindow->GetPeer() != NULL && thisWindow->GetPeer()->GetControlRef() == controlRef )
            {
                thisWindow->MacVisibilityChanged() ;
            }
            break ;

        case kEventControlEnabledStateChanged :
            thisWindow->MacEnabledStateChanged();
            break ;

        case kEventControlHiliteChanged :
            thisWindow->MacHiliteChanged() ;
            break ;

        case kEventControlActivate :
        case kEventControlDeactivate :
            // FIXME: we should have a virtual function for this!
#if wxUSE_TREECTRL
            if ( thisWindow->IsKindOf( CLASSINFO( wxTreeCtrl ) ) )
                thisWindow->Refresh();
#endif
#if wxUSE_LISTCTRL
            if ( thisWindow->IsKindOf( CLASSINFO( wxListCtrl ) ) )
                thisWindow->Refresh();
#endif
            break ;

        //
        // focus handling
        // different handling on OS X
        //

        case kEventControlFocusPartChanged :
            // the event is emulated by wxmac for systems lower than 10.5
            {
                ControlPartCode previousControlPart = cEvent.GetParameter<ControlPartCode>(kEventParamControlPreviousPart , typeControlPartCode );
                ControlPartCode currentControlPart = cEvent.GetParameter<ControlPartCode>(kEventParamControlCurrentPart , typeControlPartCode );

                if ( thisWindow->MacGetTopLevelWindow() && thisWindow->GetPeer()->NeedsFocusRect() )
                {
                    thisWindow->MacInvalidateBorders();
                }

                if ( currentControlPart == 0 )
                {
                    // kill focus
#if wxUSE_CARET
                    if ( thisWindow->GetCaret() )
                        thisWindow->GetCaret()->OnKillFocus();
#endif

                    wxLogTrace(_T("Focus"), _T("focus lost(%p)"), wx_static_cast(void*, thisWindow));

                    // remove this as soon as posting the synthesized event works properly
                    static bool inKillFocusEvent = false ;

                    if ( !inKillFocusEvent )
                    {
                        inKillFocusEvent = true ;
                        wxFocusEvent event( wxEVT_KILL_FOCUS, thisWindow->GetId());
                        event.SetEventObject(thisWindow);
                        thisWindow->HandleWindowEvent(event) ;
                        inKillFocusEvent = false ;
                    }
                }
                else if ( previousControlPart == 0 )
                {
                    // set focus
                    // panel wants to track the window which was the last to have focus in it
                    wxLogTrace(_T("Focus"), _T("focus set(%p)"), wx_static_cast(void*, thisWindow));
                    wxChildFocusEvent eventFocus((wxWindow*)thisWindow);
                    thisWindow->HandleWindowEvent(eventFocus);

#if wxUSE_CARET
                    if ( thisWindow->GetCaret() )
                        thisWindow->GetCaret()->OnSetFocus();
#endif

                    wxFocusEvent event(wxEVT_SET_FOCUS, thisWindow->GetId());
                    event.SetEventObject(thisWindow);
                    thisWindow->HandleWindowEvent(event) ;
                }
            }
            break;
        case kEventControlSetFocusPart :
            {
#ifdef __WXMAC_OSX__
                Boolean focusEverything = false ;
                if ( cEvent.GetParameter<Boolean>(kEventParamControlFocusEverything , &focusEverything ) == noErr )
                {
                    // put a breakpoint here to catch focus everything events
                }
#endif
                ControlPartCode controlPart = cEvent.GetParameter<ControlPartCode>(kEventParamControlPart , typeControlPartCode );

                ControlPartCode previousControlPart = 0;
                verify_noerr( HIViewGetFocusPart(controlRef, &previousControlPart));

                if ( thisWindow->MacIsUserPane() )
                {
                    if ( controlPart != kControlFocusNoPart )
                        cEvent.SetParameter<ControlPartCode>( kEventParamControlPart, typeControlPartCode, 1 ) ;
                    result = noErr ;
                }
                else
                    result = CallNextEventHandler(handler, event);

                if ( UMAGetSystemVersion() < 0x1050 )
                {
// set back to 0 if problems arise
#if 1
                    ControlPartCode currentControlPart = cEvent.GetParameter<ControlPartCode>(kEventParamControlPart , typeControlPartCode );
                    // synthesize the event focus changed event
                    EventRef evRef = NULL ;

                    OSStatus err = MacCreateEvent(
                                         NULL , kEventClassControl , kEventControlFocusPartChanged , TicksToEventTime( TickCount() ) ,
                                         kEventAttributeUserEvent , &evRef );
                    verify_noerr( err );

                    wxMacCarbonEvent iEvent( evRef ) ;
                    iEvent.SetParameter<ControlRef>( kEventParamDirectObject , controlRef ) ;
                    iEvent.SetParameter<ControlPartCode>( kEventParamControlPreviousPart, typeControlPartCode, previousControlPart ) ;
                    iEvent.SetParameter<ControlPartCode>( kEventParamControlCurrentPart, typeControlPartCode, currentControlPart ) ;

#if 0
                    // TODO test this first, avoid double posts etc...
                    PostEventToQueue( GetMainEventQueue(), evRef , kEventPriorityHigh );
#else
                    wxMacWindowControlEventHandler( NULL , evRef , data ) ;
#endif
                    ReleaseEvent( evRef ) ;
#else
                    // old implementation, to be removed if the new one works
                    if ( controlPart == kControlFocusNoPart )
                    {
#if wxUSE_CARET
                        if ( thisWindow->GetCaret() )
                            thisWindow->GetCaret()->OnKillFocus();
#endif

                        wxLogTrace(_T("Focus"), _T("focus lost(%p)"), wx_static_cast(void*, thisWindow));

                        static bool inKillFocusEvent = false ;

                        if ( !inKillFocusEvent )
                        {
                            inKillFocusEvent = true ;
                            wxFocusEvent event( wxEVT_KILL_FOCUS, thisWindow->GetId());
                            event.SetEventObject(thisWindow);
                            thisWindow->HandleWindowEvent(event) ;
                            inKillFocusEvent = false ;
                        }
                    }
                    else
                    {
                        // panel wants to track the window which was the last to have focus in it
                        wxLogTrace(_T("Focus"), _T("focus set(%p)"), wx_static_cast(void*, thisWindow));
                        wxChildFocusEvent eventFocus((wxWindow*)thisWindow);
                        thisWindow->HandleWindowEvent(eventFocus);

    #if wxUSE_CARET
                        if ( thisWindow->GetCaret() )
                            thisWindow->GetCaret()->OnSetFocus();
    #endif

                        wxFocusEvent event(wxEVT_SET_FOCUS, thisWindow->GetId());
                        event.SetEventObject(thisWindow);
                        thisWindow->HandleWindowEvent(event) ;
                    }
#endif
                }
            }
            break ;

        case kEventControlHit :
            result = thisWindow->MacControlHit( handler , event ) ;
            break ;

        case kEventControlGetClickActivation :
            {
                // fix to always have a proper activation for DataBrowser controls (stay in bkgnd otherwise)
                WindowRef owner = cEvent.GetParameter<WindowRef>(kEventParamWindowRef);
                if ( !IsWindowActive(owner) )
                {
                    cEvent.SetParameter(kEventParamClickActivation,(UInt32) kActivateAndIgnoreClick) ;
                    result = noErr ;
                }
            }
            break ;

        default :
            break ;
    }

    return result ;
}

static pascal OSStatus
wxMacWindowServiceEventHandler(EventHandlerCallRef WXUNUSED(handler),
                               EventRef event,
                               void *data)
{
    OSStatus result = eventNotHandledErr ;

    wxMacCarbonEvent cEvent( event ) ;

    ControlRef controlRef ;
    wxWindowMac* thisWindow = (wxWindowMac*) data ;
    wxTextCtrl* textCtrl = wxDynamicCast( thisWindow , wxTextCtrl ) ;
    cEvent.GetParameter( kEventParamDirectObject , &controlRef ) ;

    switch ( GetEventKind( event ) )
    {
        case kEventServiceGetTypes :
            if ( textCtrl )
            {
                long from, to ;
                textCtrl->GetSelection( &from , &to ) ;

                CFMutableArrayRef copyTypes = 0 , pasteTypes = 0;
                if ( from != to )
                    copyTypes = cEvent.GetParameter< CFMutableArrayRef >( kEventParamServiceCopyTypes , typeCFMutableArrayRef ) ;
                if ( textCtrl->IsEditable() )
                    pasteTypes = cEvent.GetParameter< CFMutableArrayRef >( kEventParamServicePasteTypes , typeCFMutableArrayRef ) ;

                static const OSType textDataTypes[] = { kTXNTextData /* , 'utxt', 'PICT', 'MooV', 'AIFF' */  };
                for ( size_t i = 0 ; i < WXSIZEOF(textDataTypes) ; ++i )
                {
                    CFStringRef typestring = CreateTypeStringWithOSType(textDataTypes[i]);
                    if ( typestring )
                    {
                        if ( copyTypes )
                            CFArrayAppendValue(copyTypes, typestring) ;
                        if ( pasteTypes )
                            CFArrayAppendValue(pasteTypes, typestring) ;

                        CFRelease( typestring ) ;
                    }
                }

                result = noErr ;
            }
            break ;

        case kEventServiceCopy :
            if ( textCtrl )
            {
                long from, to ;

                textCtrl->GetSelection( &from , &to ) ;
                wxString val = textCtrl->GetValue() ;
                val = val.Mid( from , to - from ) ;
                PasteboardRef pasteboard = cEvent.GetParameter<PasteboardRef>( kEventParamPasteboardRef, typePasteboardRef );
                verify_noerr( PasteboardClear( pasteboard ) ) ;
                PasteboardSynchronize( pasteboard );
                // TODO add proper conversion
                CFDataRef data = CFDataCreate( kCFAllocatorDefault, (const UInt8*)val.c_str(), val.length() );
                PasteboardPutItemFlavor( pasteboard, (PasteboardItemID) 1, CFSTR("com.apple.traditional-mac-plain-text"), data, 0);
                CFRelease( data );
                result = noErr ;
            }
            break ;

        case kEventServicePaste :
            if ( textCtrl )
            {
                PasteboardRef pasteboard = cEvent.GetParameter<PasteboardRef>( kEventParamPasteboardRef, typePasteboardRef );
                PasteboardSynchronize( pasteboard );
                ItemCount itemCount;
                verify_noerr( PasteboardGetItemCount( pasteboard, &itemCount ) );
                for( UInt32 itemIndex = 1; itemIndex <= itemCount; itemIndex++ )
                {
                    PasteboardItemID itemID;
                    if ( PasteboardGetItemIdentifier( pasteboard, itemIndex, &itemID ) == noErr )
                    {
                        CFDataRef flavorData = NULL;
                        if ( PasteboardCopyItemFlavorData( pasteboard, itemID, CFSTR("com.apple.traditional-mac-plain-text"), &flavorData ) == noErr )
                        {
                            CFIndex flavorDataSize = CFDataGetLength( flavorData );
                            char *content = new char[flavorDataSize+1] ;
                            memcpy( content, CFDataGetBytePtr( flavorData ), flavorDataSize );
                            content[flavorDataSize]=0;
                            CFRelease( flavorData );
#if wxUSE_UNICODE
                            textCtrl->WriteText( wxString( content , wxConvLocal ) );
#else
                            textCtrl->WriteText( wxString( content ) ) ;
#endif

                            delete[] content ;
                            result = noErr ;
                        }
                    }
                }
            }
            break ;

        default:
            break ;
    }

    return result ;
}

pascal OSStatus wxMacUnicodeTextEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    OSStatus result = eventNotHandledErr ;
    wxWindowMac* focus = (wxWindowMac*) data ;

    wchar_t* uniChars = NULL ;
    UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;

    UniChar* charBuf = NULL;
    ByteCount dataSize = 0 ;
    int numChars = 0 ;
    UniChar buf[2] ;
    if ( GetEventParameter( event, kEventParamTextInputSendText, typeUnicodeText, NULL, 0 , &dataSize, NULL ) == noErr )
    {
        numChars = dataSize / sizeof( UniChar) + 1;
        charBuf = buf ;

        if ( (size_t) numChars * 2 > sizeof(buf) )
            charBuf = new UniChar[ numChars ] ;
        else
            charBuf = buf ;

        uniChars = new wchar_t[ numChars ] ;
        GetEventParameter( event, kEventParamTextInputSendText, typeUnicodeText, NULL, dataSize , NULL , charBuf ) ;
        charBuf[ numChars - 1 ] = 0;
#if SIZEOF_WCHAR_T == 2
        uniChars = (wchar_t*) charBuf ;
/*        memcpy( uniChars , charBuf , numChars * 2 ) ;*/   // is there any point in copying charBuf over itself? (in fact, memcpy isn't even guaranteed to work correctly if the source and destination ranges overlap...)
#else
        // the resulting string will never have more chars than the utf16 version, so this is safe
        wxMBConvUTF16 converter ;
        numChars = converter.MB2WC( uniChars , (const char*)charBuf , numChars ) ;
#endif
    }

    switch ( GetEventKind( event ) )
    {
        case kEventTextInputUpdateActiveInputArea :
            {
                // An IME input event may return several characters, but we need to send one char at a time to
                // EVT_CHAR
                for (int pos=0 ; pos < numChars ; pos++)
                {
                    WXEVENTREF formerEvent = wxTheApp->MacGetCurrentEvent() ;
                    WXEVENTHANDLERCALLREF formerHandler = wxTheApp->MacGetCurrentEventHandlerCallRef() ;
                    wxTheApp->MacSetCurrentEvent( event , handler ) ;

                    UInt32 message = uniChars[pos] < 128 ? (char)uniChars[pos] : '?';
/*
    NB: faking a charcode here is problematic. The kEventTextInputUpdateActiveInputArea event is sent
    multiple times to update the active range during inline input, so this handler will often receive
    uncommited text, which should usually not trigger side effects. It might be a good idea to check the
    kEventParamTextInputSendFixLen parameter and verify if input is being confirmed (see CarbonEvents.h).
    On the other hand, it can be useful for some applications to react to uncommitted text (for example,
    to update a status display), as long as it does not disrupt the inline input session. Ideally, wx
    should add new event types to support advanced text input. For now, I would keep things as they are.

    However, the code that was being used caused additional problems:
                    UInt32 message = (0  << 8) + ((char)uniChars[pos] );
    Since it simply truncated the unichar to the last byte, it ended up causing weird bugs with inline
    input, such as switching to another field when one attempted to insert the character U+4E09 (the kanji
    for "three"), because it was truncated to 09 (kTabCharCode), which was later "converted" to WXK_TAB
    (still 09) in wxMacTranslateKey; or triggering the default button when one attempted to insert U+840D
    (the kanji for "name"), which got truncated to 0D and interpreted as a carriage return keypress.
    Note that even single-byte characters could have been misinterpreted, since MacRoman charcodes only
    overlap with Unicode within the (7-bit) ASCII range.
    But simply passing a NUL charcode would disable text updated events, because wxTextCtrl::OnChar checks
    for codes within a specific range. Therefore I went for the solution seen above, which keeps ASCII
    characters as they are and replaces the rest with '?', ensuring that update events are triggered.
    It would be better to change wxTextCtrl::OnChar to look at the actual unicode character instead, but
    I don't have time to look into that right now.
        -- CL
*/
                    if ( wxTheApp->MacSendCharEvent(
                                                    focus , message , 0 , when , 0 , 0 , uniChars[pos] ) )
                    {
                        result = noErr ;
                    }

                    wxTheApp->MacSetCurrentEvent( formerEvent , formerHandler ) ;
                }
            }
            break ;
        case kEventTextInputUnicodeForKeyEvent :
            {
                UInt32 keyCode, modifiers ;
                Point point ;
                EventRef rawEvent ;
                unsigned char charCode ;

                GetEventParameter( event, kEventParamTextInputSendKeyboardEvent, typeEventRef, NULL, sizeof(rawEvent), NULL, &rawEvent ) ;
                GetEventParameter( rawEvent, kEventParamKeyMacCharCodes, typeChar, NULL, sizeof(char), NULL, &charCode );
                GetEventParameter( rawEvent, kEventParamKeyCode, typeUInt32, NULL, sizeof(UInt32), NULL, &keyCode );
                GetEventParameter( rawEvent, kEventParamKeyModifiers, typeUInt32, NULL, sizeof(UInt32), NULL, &modifiers );
                GetEventParameter( rawEvent, kEventParamMouseLocation, typeQDPoint, NULL, sizeof(Point), NULL, &point );

                UInt32 message = (keyCode << 8) + charCode;

                // An IME input event may return several characters, but we need to send one char at a time to
                // EVT_CHAR
                for (int pos=0 ; pos < numChars ; pos++)
                {
                    WXEVENTREF formerEvent = wxTheApp->MacGetCurrentEvent() ;
                    WXEVENTHANDLERCALLREF formerHandler = wxTheApp->MacGetCurrentEventHandlerCallRef() ;
                    wxTheApp->MacSetCurrentEvent( event , handler ) ;

                    if ( wxTheApp->MacSendCharEvent(
                        focus , message , modifiers , when , point.h , point.v , uniChars[pos] ) )
                    {
                        result = noErr ;
                    }

                    wxTheApp->MacSetCurrentEvent( formerEvent , formerHandler ) ;
                }
            }
            break;
        default:
            break ;
    }

    delete [] uniChars ;
    if ( charBuf != buf )
        delete [] charBuf ;

    return result ;
}

static pascal OSStatus
wxMacWindowCommandEventHandler(EventHandlerCallRef WXUNUSED(handler),
                               EventRef event,
                               void *data)
{
    OSStatus result = eventNotHandledErr ;
    wxWindowMac* focus = (wxWindowMac*) data ;

    HICommand command ;

    wxMacCarbonEvent cEvent( event ) ;
    cEvent.GetParameter<HICommand>(kEventParamDirectObject,typeHICommand,&command) ;

    wxMenuItem* item = NULL ;
    wxMenu* itemMenu = wxFindMenuFromMacCommand( command , item ) ;
    int id = wxMacCommandToId( command.commandID ) ;

    if ( item )
    {
        wxASSERT( itemMenu != NULL ) ;

        switch ( cEvent.GetKind() )
        {
            case kEventProcessCommand :
                result = itemMenu->MacHandleCommandProcess( item, id, focus );
            break ;

            case kEventCommandUpdateStatus:
                result = itemMenu->MacHandleCommandUpdateStatus( item, id, focus );
                break ;

            default :
                break ;
        }
    }
    return result ;
}

pascal OSStatus wxMacWindowEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    EventRef formerEvent = (EventRef) wxTheApp->MacGetCurrentEvent() ;
    EventHandlerCallRef formerEventHandlerCallRef = (EventHandlerCallRef) wxTheApp->MacGetCurrentEventHandlerCallRef() ;
    wxTheApp->MacSetCurrentEvent( event , handler ) ;
    OSStatus result = eventNotHandledErr ;

    switch ( GetEventClass( event ) )
    {
        case kEventClassCommand :
            result = wxMacWindowCommandEventHandler( handler , event , data ) ;
            break ;

        case kEventClassControl :
            result = wxMacWindowControlEventHandler( handler, event, data ) ;
            break ;

        case kEventClassService :
            result = wxMacWindowServiceEventHandler( handler, event , data ) ;
            break ;

        case kEventClassTextInput :
            result = wxMacUnicodeTextEventHandler( handler , event , data ) ;
            break ;

        default :
            break ;
    }

    wxTheApp->MacSetCurrentEvent( formerEvent, formerEventHandlerCallRef ) ;

    return result ;
}

DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacWindowEventHandler )

// ---------------------------------------------------------------------------
// Scrollbar Tracking for all
// ---------------------------------------------------------------------------

pascal void wxMacLiveScrollbarActionProc( ControlRef control , ControlPartCode partCode ) ;
pascal void wxMacLiveScrollbarActionProc( ControlRef control , ControlPartCode partCode )
{
    if ( partCode != 0)
    {
        wxWindow*  wx = wxFindControlFromMacControl( control ) ;
        if ( wx )
            wx->MacHandleControlClick( (WXWidget) control , partCode , true /* stillDown */ ) ;
    }
}
wxMAC_DEFINE_PROC_GETTER( ControlActionUPP , wxMacLiveScrollbarActionProc ) ;

// ===========================================================================
// implementation
// ===========================================================================

WX_DECLARE_HASH_MAP(ControlRef, wxWindow*, wxPointerHash, wxPointerEqual, MacControlMap);

static MacControlMap wxWinMacControlList;

wxWindow *wxFindControlFromMacControl(ControlRef inControl )
{
    MacControlMap::iterator node = wxWinMacControlList.find(inControl);

    return (node == wxWinMacControlList.end()) ? NULL : node->second;
}

void wxAssociateControlWithMacControl(ControlRef inControl, wxWindow *control)
{
    // adding NULL ControlRef is (first) surely a result of an error and
    // (secondly) breaks native event processing
    wxCHECK_RET( inControl != (ControlRef) NULL, wxT("attempt to add a NULL WindowRef to window list") );

    wxWinMacControlList[inControl] = control;
}

void wxRemoveMacControlAssociation(wxWindow *control)
{
   // iterate over all the elements in the class
    // is the iterator stable ? as we might have two associations pointing to the same wxWindow
    // we should go on...

    bool found = true ;
    while ( found )
    {
        found = false ;
        MacControlMap::iterator it;
        for ( it = wxWinMacControlList.begin(); it != wxWinMacControlList.end(); ++it )
        {
            if ( it->second == control )
            {
                wxWinMacControlList.erase(it);
                found = true ;
                break;
            }
        }
    }
}

// ----------------------------------------------------------------------------
 // constructors and such
// ----------------------------------------------------------------------------

wxWindowMac::wxWindowMac()
{
    Init();
}

wxWindowMac::wxWindowMac(wxWindowMac *parent,
            wxWindowID id,
            const wxPoint& pos ,
            const wxSize& size ,
            long style ,
            const wxString& name )
{
    Init();
    Create(parent, id, pos, size, style, name);
}

void wxWindowMac::Init()
{
    m_peer = NULL ;
    m_macAlpha = 255 ;
    m_cgContextRef = NULL ;

    // as all windows are created with WS_VISIBLE style...
    m_isShown = true;

    m_hScrollBar = NULL ;
    m_vScrollBar = NULL ;
    m_hScrollBarAlwaysShown = false;
    m_vScrollBarAlwaysShown = false;

    m_macIsUserPane = true;
    m_clipChildren = false ;
    m_cachedClippedRectValid = false ;
}

wxWindowMac::~wxWindowMac()
{
    SendDestroyEvent();

    m_isBeingDeleted = true;

    MacInvalidateBorders() ;

#ifndef __WXUNIVERSAL__
    // VS: make sure there's no wxFrame with last focus set to us:
    for ( wxWindow *win = GetParent(); win; win = win->GetParent() )
    {
        wxFrame *frame = wxDynamicCast(win, wxFrame);
        if ( frame )
        {
            if ( frame->GetLastFocus() == this )
                frame->SetLastFocus((wxWindow*)NULL);
            break;
        }
    }
#endif

    // destroy children before destroying this window itself
    DestroyChildren();

    // wxRemoveMacControlAssociation( this ) ;
    // If we delete an item, we should initialize the parent panel,
    // because it could now be invalid.
    wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
    if ( tlw )
    {
        if ( tlw->GetDefaultItem() == (wxButton*) this)
            tlw->SetDefaultItem(NULL);
    }

    if ( m_peer && m_peer->Ok() )
    {
        // in case the callback might be called during destruction
        wxRemoveMacControlAssociation( this) ;
        ::RemoveEventHandler( (EventHandlerRef ) m_macControlEventHandler ) ;
        // we currently are not using this hook
        // ::SetControlColorProc( *m_peer , NULL ) ;
        m_peer->Dispose() ;
    }

    if ( g_MacLastWindow == this )
        g_MacLastWindow = NULL ;

#ifndef __WXUNIVERSAL__
    wxFrame* frame = wxDynamicCast( wxGetTopLevelParent( (wxWindow*)this ) , wxFrame ) ;
    if ( frame )
    {
        if ( frame->GetLastFocus() == this )
            frame->SetLastFocus( NULL ) ;
    }
#endif

    // delete our drop target if we've got one
#if wxUSE_DRAG_AND_DROP
    if ( m_dropTarget != NULL )
    {
        delete m_dropTarget;
        m_dropTarget = NULL;
    }
#endif

    delete m_peer ;
}

WXWidget wxWindowMac::GetHandle() const
{
    return (WXWidget) m_peer->GetControlRef() ;
}

void wxWindowMac::MacInstallEventHandler( WXWidget control )
{
    wxAssociateControlWithMacControl( (ControlRef) control , this ) ;
    InstallControlEventHandler( (ControlRef)control , GetwxMacWindowEventHandlerUPP(),
        GetEventTypeCount(eventList), eventList, this,
        (EventHandlerRef *)&m_macControlEventHandler);
}

// Constructor
bool wxWindowMac::Create(wxWindowMac *parent,
    wxWindowID id,
    const wxPoint& pos,
    const wxSize& size,
    long style,
    const wxString& name)
{
    wxCHECK_MSG( parent, false, wxT("can't create wxWindowMac without parent") );

    if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
        return false;

    m_windowVariant = parent->GetWindowVariant() ;

    if ( m_macIsUserPane )
    {
        Rect bounds = wxMacGetBoundsForControl( this , pos , size ) ;

        UInt32 features = 0
            | kControlSupportsEmbedding
            | kControlSupportsLiveFeedback
            | kControlGetsFocusOnClick
//            | kControlHasSpecialBackground
//            | kControlSupportsCalcBestRect
            | kControlHandlesTracking
            | kControlSupportsFocus
            | kControlWantsActivate
            | kControlWantsIdle ;

        m_peer = new wxMacControl(this) ;
        OSStatus err =::CreateUserPaneControl( MAC_WXHWND(GetParent()->MacGetTopLevelWindowRef()) , &bounds, features , m_peer->GetControlRefAddr() );
        verify_noerr( err );

        MacPostControlCreate(pos, size) ;
    }

#ifndef __WXUNIVERSAL__
    // Don't give scrollbars to wxControls unless they ask for them
    if ( (! IsKindOf(CLASSINFO(wxControl)) && ! IsKindOf(CLASSINFO(wxStatusBar)))
         || (IsKindOf(CLASSINFO(wxControl)) && ((style & wxHSCROLL) || (style & wxVSCROLL))))
    {
        MacCreateScrollBars( style ) ;
    }
#endif

    wxWindowCreateEvent event(this);
    GetEventHandler()->AddPendingEvent(event);

    return true;
}

void wxWindowMac::MacChildAdded()
{
    if ( m_vScrollBar )
        m_vScrollBar->Raise() ;
    if ( m_hScrollBar )
        m_hScrollBar->Raise() ;
}

void wxWindowMac::MacPostControlCreate(const wxPoint& WXUNUSED(pos), const wxSize& size)
{
    wxASSERT_MSG( m_peer != NULL && m_peer->Ok() , wxT("No valid mac control") ) ;

    m_peer->SetReference( (URefCon) this ) ;
    GetParent()->AddChild( this );

    MacInstallEventHandler( (WXWidget) m_peer->GetControlRef() );

    ControlRef container = (ControlRef) GetParent()->GetHandle() ;
    wxASSERT_MSG( container != NULL , wxT("No valid mac container control") ) ;
    ::EmbedControl( m_peer->GetControlRef() , container ) ;
    GetParent()->MacChildAdded() ;

    // adjust font, controlsize etc
    DoSetWindowVariant( m_windowVariant ) ;

    m_peer->SetLabel( wxStripMenuCodes(m_label, wxStrip_Mnemonics) ) ;

    if (!m_macIsUserPane)
        SetInitialSize(size);

    SetCursor( *wxSTANDARD_CURSOR ) ;
}

void wxWindowMac::DoSetWindowVariant( wxWindowVariant variant )
{
    // Don't assert, in case we set the window variant before
    // the window is created
    // wxASSERT( m_peer->Ok() ) ;

    m_windowVariant = variant ;

    if (m_peer == NULL || !m_peer->Ok())
        return;

    ControlSize size ;
    ThemeFontID themeFont = kThemeSystemFont ;

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

    switch ( variant )
    {
        case wxWINDOW_VARIANT_NORMAL :
            size = kControlSizeNormal;
            themeFont = kThemeSystemFont ;
            break ;

        case wxWINDOW_VARIANT_SMALL :
            size = kControlSizeSmall;
            themeFont = kThemeSmallSystemFont ;
            break ;

        case wxWINDOW_VARIANT_MINI :
            // not always defined in the headers
            size = 3 ;
            themeFont = 109 ;
            break ;

        case wxWINDOW_VARIANT_LARGE :
            size = kControlSizeLarge;
            themeFont = kThemeSystemFont ;
            break ;

        default:
            wxFAIL_MSG(_T("unexpected window variant"));
            break ;
    }

    m_peer->SetData<ControlSize>(kControlEntireControl, kControlSizeTag, &size ) ;

    wxFont font ;
    font.MacCreateFromThemeFont( themeFont ) ;
    SetFont( font ) ;
}

void wxWindowMac::MacUpdateControlFont()
{
    m_peer->SetFont( GetFont() , GetForegroundColour() , GetWindowStyle() ) ;
    // do not trigger refreshes upon invisible and possible partly created objects
    if ( IsShownOnScreen() )
        Refresh() ;
}

bool wxWindowMac::SetFont(const wxFont& font)
{
    bool retval = wxWindowBase::SetFont( font );

    MacUpdateControlFont() ;

    return retval;
}

bool wxWindowMac::SetForegroundColour(const wxColour& col )
{
    bool retval = wxWindowBase::SetForegroundColour( col );

    if (retval)
        MacUpdateControlFont();

    return retval;
}

bool wxWindowMac::SetBackgroundColour(const wxColour& col )
{
    if ( !wxWindowBase::SetBackgroundColour(col) && m_hasBgCol )
        return false ;

    m_peer->SetBackgroundColour( col ) ;

    return true ;
}

bool wxWindowMac::MacCanFocus() const
{
    // TODO : evaluate performance hits by looking up this value, eventually cache the results for a 1 sec or so
    // CAUTION : the value returned currently is 0 or 2, I've also found values of 1 having the same meaning,
    // but the value range is nowhere documented
    Boolean keyExistsAndHasValidFormat ;
    CFIndex fullKeyboardAccess = CFPreferencesGetAppIntegerValue( CFSTR("AppleKeyboardUIMode" ) ,
        kCFPreferencesCurrentApplication, &keyExistsAndHasValidFormat );

    if ( keyExistsAndHasValidFormat && fullKeyboardAccess > 0 )
    {
        return true ;
    }
    else
    {
        UInt32 features = 0 ;
        m_peer->GetFeatures( &features ) ;

        return features & ( kControlSupportsFocus | kControlGetsFocusOnClick ) ;
    }
}

void wxWindowMac::SetFocus()
{
    if ( !AcceptsFocus() )
            return ;

    wxWindow* former = FindFocus() ;
    if ( former == this )
        return ;

    // as we cannot rely on the control features to find out whether we are in full keyboard mode,
    // we can only leave in case of an error
    OSStatus err = m_peer->SetFocus( kControlFocusNextPart ) ;
    if ( err == errCouldntSetFocus )
        return ;

    SetUserFocusWindow( (WindowRef)MacGetTopLevelWindowRef() );
}

void wxWindowMac::DoCaptureMouse()
{
    wxApp::s_captureWindow = this ;
}

wxWindow * wxWindowBase::GetCapture()
{
    return wxApp::s_captureWindow ;
}

void wxWindowMac::DoReleaseMouse()
{
    wxApp::s_captureWindow = NULL ;
}

#if wxUSE_DRAG_AND_DROP

void wxWindowMac::SetDropTarget(wxDropTarget *pDropTarget)
{
    if ( m_dropTarget != NULL )
        delete m_dropTarget;

    m_dropTarget = pDropTarget;
    if ( m_dropTarget != NULL )
    {
        // TODO:
    }
}

#endif

// Old-style File Manager Drag & Drop
void wxWindowMac::DragAcceptFiles(bool WXUNUSED(accept))
{
    // TODO:
}

// Returns the size of the native control. In the case of the toplevel window
// this is the content area root control

void wxWindowMac::MacGetPositionAndSizeFromControl(int& WXUNUSED(x),
                                                   int& WXUNUSED(y),
                                                   int& WXUNUSED(w),
                                                   int& WXUNUSED(h)) const
{
    wxFAIL_MSG( wxT("Not currently supported") ) ;
}

// From a wx position / size calculate the appropriate size of the native control

bool wxWindowMac::MacGetBoundsForControl(
    const wxPoint& pos,
    const wxSize& size,
    int& x, int& y,
    int& w, int& h , bool adjustOrigin ) const
{
    // the desired size, minus the border pixels gives the correct size of the control
    x = (int)pos.x;
    y = (int)pos.y;

    // TODO: the default calls may be used as soon as PostCreateControl Is moved here
    w = wxMax(size.x, 0) ; // WidthDefault( size.x );
    h = wxMax(size.y, 0) ; // HeightDefault( size.y ) ;

    x += MacGetLeftBorderSize() ;
    y += MacGetTopBorderSize() ;
    w -= MacGetLeftBorderSize() + MacGetRightBorderSize() ;
    h -= MacGetTopBorderSize() + MacGetBottomBorderSize() ;

    if ( adjustOrigin )
        AdjustForParentClientOrigin( x , y ) ;

    // this is in window relative coordinate, as this parent may have a border, its physical position is offset by this border
    if ( !GetParent()->IsTopLevel() )
    {
        x -= GetParent()->MacGetLeftBorderSize() ;
        y -= GetParent()->MacGetTopBorderSize() ;
    }

    return true ;
}

// Get window size (not client size)
void wxWindowMac::DoGetSize(int *x, int *y) const
{
    Rect bounds ;
    m_peer->GetRect( &bounds ) ;

    if (x)
       *x = bounds.right - bounds.left + MacGetLeftBorderSize() + MacGetRightBorderSize() ;
    if (y)
       *y = bounds.bottom - bounds.top + MacGetTopBorderSize() + MacGetBottomBorderSize() ;
}

// get the position of the bounds of this window in client coordinates of its parent
void wxWindowMac::DoGetPosition(int *x, int *y) const
{
    Rect bounds ;
    m_peer->GetRect( &bounds ) ;

    int x1 = bounds.left ;
    int y1 = bounds.top ;

    // get the wx window position from the native one
    x1 -= MacGetLeftBorderSize() ;
    y1 -= MacGetTopBorderSize() ;

    if ( !IsTopLevel() )
    {
        wxWindow *parent = GetParent();
        if ( parent )
        {
            // we must first adjust it to be in window coordinates of the parent,
            // as otherwise it gets lost by the ClientAreaOrigin fix
            x1 += parent->MacGetLeftBorderSize() ;
            y1 += parent->MacGetTopBorderSize() ;

            // and now to client coordinates
            wxPoint pt(parent->GetClientAreaOrigin());
            x1 -= pt.x ;
            y1 -= pt.y ;
        }
    }

    if (x)
       *x = x1 ;
    if (y)
       *y = y1 ;
}

void wxWindowMac::DoScreenToClient(int *x, int *y) const
{
    WindowRef window = (WindowRef) MacGetTopLevelWindowRef() ;
    wxCHECK_RET( window , wxT("TopLevel Window missing") ) ;

    Point localwhere = { 0, 0 } ;

    if (x)
        localwhere.h = *x ;
    if (y)
        localwhere.v = *y ;

    wxMacGlobalToLocal( window , &localwhere ) ;

    if (x)
       *x = localwhere.h ;
    if (y)
       *y = localwhere.v ;

    MacRootWindowToWindow( x , y ) ;

    wxPoint origin = GetClientAreaOrigin() ;
    if (x)
       *x -= origin.x ;
    if (y)
       *y -= origin.y ;
}

void wxWindowMac::DoClientToScreen(int *x, int *y) const
{
    WindowRef window = (WindowRef) MacGetTopLevelWindowRef() ;
    wxCHECK_RET( window , wxT("TopLevel window missing") ) ;

    wxPoint origin = GetClientAreaOrigin() ;
    if (x)
       *x += origin.x ;
    if (y)
       *y += origin.y ;

    MacWindowToRootWindow( x , y ) ;

    Point localwhere = { 0, 0 };
    if (x)
       localwhere.h = *x ;
    if (y)
       localwhere.v = *y ;

    wxMacLocalToGlobal( window, &localwhere ) ;

    if (x)
       *x = localwhere.h ;
    if (y)
       *y = localwhere.v ;
}

void wxWindowMac::MacClientToRootWindow( int *x , int *y ) const
{
    wxPoint origin = GetClientAreaOrigin() ;
    if (x)
       *x += origin.x ;
    if (y)
       *y += origin.y ;

    MacWindowToRootWindow( x , y ) ;
}

void wxWindowMac::MacRootWindowToClient( int *x , int *y ) const
{
    MacRootWindowToWindow( x , y ) ;

    wxPoint origin = GetClientAreaOrigin() ;
    if (x)
       *x -= origin.x ;
    if (y)
       *y -= origin.y ;
}

void wxWindowMac::MacWindowToRootWindow( int *x , int *y ) const
{
    wxPoint pt ;

    if (x)
        pt.x = *x ;
    if (y)
        pt.y = *y ;

    if ( !IsTopLevel() )
    {
        wxTopLevelWindowMac* top = MacGetTopLevelWindow();
        if (top)
        {
            pt.x -= MacGetLeftBorderSize() ;
            pt.y -= MacGetTopBorderSize() ;
            wxMacControl::Convert( &pt , m_peer , top->m_peer ) ;
        }
    }

    if (x)
        *x = (int) pt.x ;
    if (y)
        *y = (int) pt.y ;
}

void wxWindowMac::MacWindowToRootWindow( short *x , short *y ) const
{
    int x1 , y1 ;

    if (x)
        x1 = *x ;
    if (y)
        y1 = *y ;

    MacWindowToRootWindow( &x1 , &y1 ) ;

    if (x)
        *x = x1 ;
    if (y)
        *y = y1 ;
}

void wxWindowMac::MacRootWindowToWindow( int *x , int *y ) const
{
    wxPoint pt ;

    if (x)
        pt.x = *x ;
    if (y)
        pt.y = *y ;

    if ( !IsTopLevel() )
    {
        wxTopLevelWindowMac* top = MacGetTopLevelWindow();
        if (top)
        {
            wxMacControl::Convert( &pt , top->m_peer , m_peer ) ;
            pt.x += MacGetLeftBorderSize() ;
            pt.y += MacGetTopBorderSize() ;
        }
    }

    if (x)
        *x = (int) pt.x ;
    if (y)
        *y = (int) pt.y ;
}

void wxWindowMac::MacRootWindowToWindow( short *x , short *y ) const
{
    int x1 , y1 ;

    if (x)
        x1 = *x ;
    if (y)
        y1 = *y ;

    MacRootWindowToWindow( &x1 , &y1 ) ;

    if (x)
        *x = x1 ;
    if (y)
        *y = y1 ;
}

void wxWindowMac::MacGetContentAreaInset( int &left , int &top , int &right , int &bottom )
{
    RgnHandle rgn = NewRgn() ;

    if ( m_peer->GetRegion( kControlContentMetaPart , rgn ) == noErr )
    {
        Rect structure, content ;

        GetRegionBounds( rgn , &content ) ;
        m_peer->GetRect( &structure ) ;
        OffsetRect( &structure, -structure.left , -structure.top ) ;

        left = content.left - structure.left ;
        top = content.top - structure.top ;
        right = structure.right - content.right ;
        bottom = structure.bottom - content.bottom ;
    }
    else
    {
        left = top = right = bottom = 0 ;
    }

    DisposeRgn( rgn ) ;
}

wxSize wxWindowMac::DoGetSizeFromClientSize( const wxSize & size )  const
{
    wxSize sizeTotal = size;

    RgnHandle rgn = NewRgn() ;
    if ( m_peer->GetRegion( kControlContentMetaPart , rgn ) == noErr )
    {
        Rect content, structure ;
        GetRegionBounds( rgn , &content ) ;
        m_peer->GetRect( &structure ) ;

        // structure is in parent coordinates, but we only need width and height, so it's ok

        sizeTotal.x += (structure.right - structure.left) - (content.right - content.left) ;
        sizeTotal.y += (structure.bottom - structure.top) - (content.bottom - content.top) ;
    }

    DisposeRgn( rgn ) ;

    sizeTotal.x += MacGetLeftBorderSize() + MacGetRightBorderSize() ;
    sizeTotal.y += MacGetTopBorderSize() + MacGetBottomBorderSize() ;

    return sizeTotal;
}

// Get size *available for subwindows* i.e. excluding menu bar etc.
void wxWindowMac::DoGetClientSize( int *x, int *y ) const
{
    int ww, hh;

    RgnHandle rgn = NewRgn() ;
    Rect content ;
    if ( m_peer->GetRegion( kControlContentMetaPart , rgn ) == noErr )
        GetRegionBounds( rgn , &content ) ;
    else
        m_peer->GetRect( &content ) ;
    DisposeRgn( rgn ) ;

    ww = content.right - content.left ;
    hh = content.bottom - content.top ;

    if (m_hScrollBar  && m_hScrollBar->IsShown() )
        hh -= m_hScrollBar->GetSize().y ;

    if (m_vScrollBar  && m_vScrollBar->IsShown() )
        ww -= m_vScrollBar->GetSize().x ;

    if (x)
       *x = ww;
    if (y)
       *y = hh;
}

bool wxWindowMac::SetCursor(const wxCursor& cursor)
{
    if (m_cursor.IsSameAs(cursor))
        return false;

    if (!cursor.IsOk())
    {
        if ( ! wxWindowBase::SetCursor( *wxSTANDARD_CURSOR ) )
            return false ;
    }
    else
    {
        if ( ! wxWindowBase::SetCursor( cursor ) )
            return false ;
    }

    wxASSERT_MSG( m_cursor.Ok(),
        wxT("cursor must be valid after call to the base version"));

    wxWindowMac *mouseWin = 0 ;
    {
        wxTopLevelWindowMac *tlw = MacGetTopLevelWindow() ;
        WindowRef window = (WindowRef) ( tlw ? tlw->MacGetWindowRef() : 0 ) ;

        ControlPartCode part ;
        ControlRef control ;
        Point pt ;
 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
        HIPoint hiPoint ;
        HIGetMousePosition(kHICoordSpaceWindow, window, &hiPoint);
        pt.h = hiPoint.x;
        pt.v = hiPoint.y;
 #else
        GetGlobalMouse( &pt );
        int x = pt.h;
        int y = pt.v;
        ScreenToClient(&x, &y);
        pt.h = x;
        pt.v = y;
#endif
        control = FindControlUnderMouse( pt , window , &part ) ;
        if ( control )
            mouseWin = wxFindControlFromMacControl( control ) ;

    }

    if ( mouseWin == this && !wxIsBusy() )
        m_cursor.MacInstall() ;

    return true ;
}

#if wxUSE_MENUS
bool wxWindowMac::DoPopupMenu(wxMenu *menu, int x, int y)
{
#ifndef __WXUNIVERSAL__
    menu->SetInvokingWindow((wxWindow*)this);
    menu->UpdateUI();

    if ( x == wxDefaultCoord && y == wxDefaultCoord )
    {
        wxPoint mouse = wxGetMousePosition();
        x = mouse.x;
        y = mouse.y;
    }
    else
    {
        ClientToScreen( &x , &y ) ;
    }

    menu->MacBeforeDisplay( true ) ;
    long menuResult = ::PopUpMenuSelect((MenuHandle) menu->GetHMenu() , y, x, 0) ;
    if ( HiWord(menuResult) != 0 )
    {
        MenuCommand macid;
        GetMenuItemCommandID( GetMenuHandle(HiWord(menuResult)) , LoWord(menuResult) , &macid );
        int id = wxMacCommandToId( macid );
        wxMenuItem* item = NULL ;
        wxMenu* realmenu ;
        item = menu->FindItem( id, &realmenu ) ;
        if ( item )
        {
            if (item->IsCheckable())
                item->Check( !item->IsChecked() ) ;

            menu->SendEvent( id , item->IsCheckable() ? item->IsChecked() : -1 ) ;
        }
    }

    menu->MacAfterDisplay( true ) ;
    menu->SetInvokingWindow( NULL );

  return true;
#else
    // actually this shouldn't be called, because universal is having its own implementation
    return false;
#endif
}
#endif

// ----------------------------------------------------------------------------
// tooltips
// ----------------------------------------------------------------------------

#if wxUSE_TOOLTIPS

void wxWindowMac::DoSetToolTip(wxToolTip *tooltip)
{
    wxWindowBase::DoSetToolTip(tooltip);

    if ( m_tooltip )
        m_tooltip->SetWindow(this);
}

#endif

void wxWindowMac::MacInvalidateBorders()
{
    if ( m_peer == NULL )
        return ;

    bool vis = IsShownOnScreen() ;
    if ( !vis )
        return ;

    int outerBorder = MacGetLeftBorderSize() ;
    if ( m_peer->NeedsFocusRect() /* && m_peer->HasFocus() */ )
        outerBorder += 4 ;

    if ( outerBorder == 0 )
        return ;

    // now we know that we have something to do at all

    // as the borders are drawn on the parent we have to properly invalidate all these areas
    RgnHandle updateInner , updateOuter;
    Rect rect ;

    // this rectangle is in HIViewCoordinates under OSX and in Window Coordinates under Carbon
    updateInner = NewRgn() ;
    updateOuter = NewRgn() ;

    m_peer->GetRect( &rect ) ;
    RectRgn( updateInner, &rect ) ;
    InsetRect( &rect , -outerBorder , -outerBorder ) ;
    RectRgn( updateOuter, &rect ) ;
    DiffRgn( updateOuter, updateInner , updateOuter ) ;

    GetParent()->m_peer->SetNeedsDisplay( updateOuter ) ;

    DisposeRgn( updateOuter ) ;
    DisposeRgn( updateInner ) ;
}

void wxWindowMac::DoMoveWindow(int x, int y, int width, int height)
{
    // this is never called for a toplevel window, so we know we have a parent
    int former_x , former_y , former_w, former_h ;

    // Get true coordinates of former position
    DoGetPosition( &former_x , &former_y ) ;
    DoGetSize( &former_w , &former_h ) ;

    wxWindow *parent = GetParent();
    if ( parent )
    {
        wxPoint pt(parent->GetClientAreaOrigin());
        former_x += pt.x ;
        former_y += pt.y ;
    }

    int actualWidth = width ;
    int actualHeight = height ;
    int actualX = x;
    int actualY = y;

    if ((m_minWidth != -1) && (actualWidth < m_minWidth))
        actualWidth = m_minWidth;
    if ((m_minHeight != -1) && (actualHeight < m_minHeight))
        actualHeight = m_minHeight;
    if ((m_maxWidth != -1) && (actualWidth > m_maxWidth))
        actualWidth = m_maxWidth;
    if ((m_maxHeight != -1) && (actualHeight > m_maxHeight))
        actualHeight = m_maxHeight;

    bool doMove = false, doResize = false ;

    if ( actualX != former_x || actualY != former_y )
        doMove = true ;

    if ( actualWidth != former_w || actualHeight != former_h )
        doResize = true ;

    if ( doMove || doResize )
    {
        // as the borders are drawn outside the native control, we adjust now

        wxRect bounds( wxPoint( actualX + MacGetLeftBorderSize() ,actualY + MacGetTopBorderSize() ),
            wxSize( actualWidth - (MacGetLeftBorderSize() + MacGetRightBorderSize()) ,
                actualHeight - (MacGetTopBorderSize() + MacGetBottomBorderSize()) ) ) ;

        Rect r ;
        wxMacRectToNative( &bounds , &r ) ;

        if ( !GetParent()->IsTopLevel() )
            wxMacWindowToNative( GetParent() , &r ) ;

        MacInvalidateBorders() ;

        m_cachedClippedRectValid = false ;
        m_peer->SetRect( &r ) ;

        wxWindowMac::MacSuperChangedPosition() ; // like this only children will be notified

        MacInvalidateBorders() ;

        MacRepositionScrollBars() ;
        if ( doMove )
        {
            wxPoint point(actualX, actualY);
            wxMoveEvent event(point, m_windowId);
            event.SetEventObject(this);
            HandleWindowEvent(event) ;
        }

        if ( doResize )
        {
            MacRepositionScrollBars() ;
            wxSize size(actualWidth, actualHeight);
            wxSizeEvent event(size, m_windowId);
            event.SetEventObject(this);
            HandleWindowEvent(event);
        }
    }
}

wxSize wxWindowMac::DoGetBestSize() const
{
    if ( m_macIsUserPane || IsTopLevel() )
        return wxWindowBase::DoGetBestSize() ;

    Rect    bestsize = { 0 , 0 , 0 , 0 } ;
    int bestWidth, bestHeight ;

    m_peer->GetBestRect( &bestsize ) ;
    if ( EmptyRect( &bestsize ) )
    {
        bestsize.left =
        bestsize.top = 0 ;
        bestsize.right =
        bestsize.bottom = 16 ;

        if ( IsKindOf( CLASSINFO( wxScrollBar ) ) )
        {
            bestsize.bottom = 16 ;
        }
#if wxUSE_SPINBTN
        else if ( IsKindOf( CLASSINFO( wxSpinButton ) ) )
        {
            bestsize.bottom = 24 ;
        }
#endif
        else
        {
            // return wxWindowBase::DoGetBestSize() ;
        }
    }

    bestWidth = bestsize.right - bestsize.left ;
    bestHeight = bestsize.bottom - bestsize.top ;
    if ( bestHeight < 10 )
        bestHeight = 13 ;

    return wxSize(bestWidth, bestHeight);
}

// set the size of the window: if the dimensions are positive, just use them,
// but if any of them is equal to -1, it means that we must find the value for
// it ourselves (unless sizeFlags contains wxSIZE_ALLOW_MINUS_ONE flag, in
// which case -1 is a valid value for x and y)
//
// If sizeFlags contains wxSIZE_AUTO_WIDTH/HEIGHT flags (default), we calculate
// the width/height to best suit our contents, otherwise we reuse the current
// width/height
void wxWindowMac::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
    // get the current size and position...
    int currentX, currentY;
    int currentW, currentH;

    GetPosition(&currentX, &currentY);
    GetSize(&currentW, &currentH);

    // ... and don't do anything (avoiding flicker) if it's already ok
    if ( x == currentX && y == currentY &&
        width == currentW && height == currentH && ( height != -1 && width != -1 ) )
    {
        // TODO: REMOVE
        MacRepositionScrollBars() ; // we might have a real position shift

        return;
    }

    if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
    {
        if ( x == wxDefaultCoord )
            x = currentX;
        if ( y == wxDefaultCoord )
            y = currentY;
    }

    AdjustForParentClientOrigin( x, y, sizeFlags );

    wxSize size = wxDefaultSize;
    if ( width == wxDefaultCoord )
    {
        if ( sizeFlags & wxSIZE_AUTO_WIDTH )
        {
            size = DoGetBestSize();
            width = size.x;
        }
        else
        {
            // just take the current one
            width = currentW;
        }
    }

    if ( height == wxDefaultCoord )
    {
        if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
        {
            if ( size.x == wxDefaultCoord )
                size = DoGetBestSize();
            // else: already called DoGetBestSize() above

            height = size.y;
        }
        else
        {
            // just take the current one
            height = currentH;
        }
    }

    DoMoveWindow( x, y, width, height );
}

wxPoint wxWindowMac::GetClientAreaOrigin() const
{
    RgnHandle rgn = NewRgn() ;
    Rect content ;
    if ( m_peer->GetRegion( kControlContentMetaPart , rgn ) == noErr )
    {
        GetRegionBounds( rgn , &content ) ;
    }
    else
    {
        content.left =
        content.top = 0 ;
    }

    DisposeRgn( rgn ) ;

    return wxPoint( content.left + MacGetLeftBorderSize() , content.top + MacGetTopBorderSize() );
}

void wxWindowMac::DoSetClientSize(int clientwidth, int clientheight)
{
    if ( clientwidth != wxDefaultCoord || clientheight != wxDefaultCoord )
    {
        int currentclientwidth , currentclientheight ;
        int currentwidth , currentheight ;

        GetClientSize( &currentclientwidth , &currentclientheight ) ;
        GetSize( &currentwidth , &currentheight ) ;

        DoSetSize( wxDefaultCoord , wxDefaultCoord , currentwidth + clientwidth - currentclientwidth ,
            currentheight + clientheight - currentclientheight , wxSIZE_USE_EXISTING ) ;
    }
}

void wxWindowMac::SetLabel(const wxString& title)
{
    m_label = title ;

    if ( m_peer && m_peer->Ok() )
        m_peer->SetLabel( wxStripMenuCodes(m_label, wxStrip_Mnemonics) ) ;

    // do not trigger refreshes upon invisible and possible partly created objects
    if ( IsShownOnScreen() )
        Refresh() ;
}

wxString wxWindowMac::GetLabel() const
{
    return m_label ;
}

bool wxWindowMac::Show(bool show)
{
    if ( !wxWindowBase::Show(show) )
        return false;

    if ( m_peer )
        m_peer->SetVisibility( show , true ) ;

    return true;
}

void wxWindowMac::DoEnable(bool enable)
{
    m_peer->Enable( enable ) ;
}

//
// status change notifications
//

void wxWindowMac::MacVisibilityChanged()
{
}

void wxWindowMac::MacHiliteChanged()
{
}

void wxWindowMac::MacEnabledStateChanged()
{
    OnEnabled( m_peer->IsEnabled() );
}

//
// status queries on the inherited window's state
//

bool wxWindowMac::MacIsReallyEnabled()
{
    return m_peer->IsEnabled() ;
}

bool wxWindowMac::MacIsReallyHilited()
{
    return m_peer->IsActive();
}

void wxWindowMac::MacFlashInvalidAreas()
{
#if TARGET_API_MAC_OSX
    HIViewFlashDirtyArea( (WindowRef) MacGetTopLevelWindowRef() ) ;
#endif
}

int wxWindowMac::GetCharHeight() const
{
    wxClientDC dc( (wxWindowMac*)this ) ;

    return dc.GetCharHeight() ;
}

int wxWindowMac::GetCharWidth() const
{
    wxClientDC dc( (wxWindowMac*)this ) ;

    return dc.GetCharWidth() ;
}

void wxWindowMac::GetTextExtent(const wxString& string, int *x, int *y,
                           int *descent, int *externalLeading, const wxFont *theFont ) const
{
    const wxFont *fontToUse = theFont;
    if ( !fontToUse )
        fontToUse = &m_font;

    wxClientDC dc( (wxWindowMac*) this ) ;
    wxCoord lx,ly,ld,le ;
    dc.GetTextExtent( string , &lx , &ly , &ld, &le, (wxFont *)fontToUse ) ;
    if ( externalLeading )
        *externalLeading = le ;
    if ( descent )
        *descent = ld ;
    if ( x )
        *x = lx ;
    if ( y )
        *y = ly ;
}

/*
 * Rect is given in client coordinates, for further reading, read wxTopLevelWindowMac::InvalidateRect
 * we always intersect with the entire window, not only with the client area
 */

void wxWindowMac::Refresh(bool WXUNUSED(eraseBack), const wxRect *rect)
{
    if ( m_peer == NULL )
        return ;

    if ( !IsShownOnScreen() )
        return ;

    if ( rect )
    {
        Rect r ;

        wxMacRectToNative( rect , &r ) ;
        m_peer->SetNeedsDisplay( &r ) ;
    }
    else
    {
        m_peer->SetNeedsDisplay() ;
    }
}

void wxWindowMac::DoFreeze()
{
#if TARGET_API_MAC_OSX
    if ( m_peer && m_peer->Ok() )
        m_peer->SetDrawingEnabled( false ) ;
#endif
}

void wxWindowMac::DoThaw()
{
#if TARGET_API_MAC_OSX
    if ( m_peer && m_peer->Ok() )
    {
        m_peer->SetDrawingEnabled( true ) ;
        m_peer->InvalidateWithChildren() ;
    }
#endif
}

wxWindowMac *wxGetActiveWindow()
{
    // actually this is a windows-only concept
    return NULL;
}

// Coordinates relative to the window
void wxWindowMac::WarpPointer(int WXUNUSED(x_pos), int WXUNUSED(y_pos))
{
    // We really don't move the mouse programmatically under Mac.
}

void wxWindowMac::OnEraseBackground(wxEraseEvent& event)
{
    if ( MacGetTopLevelWindow() == NULL )
        return ;
/*
#if TARGET_API_MAC_OSX
    if ( !m_backgroundColour.Ok() || GetBackgroundStyle() == wxBG_STYLE_TRANSPARENT )
    {
    }
    else
#endif
*/
    if ( GetBackgroundStyle() == wxBG_STYLE_COLOUR )
    {
        event.GetDC()->Clear() ;
    }
    else
    {
        event.Skip() ;
    }
}

void wxWindowMac::OnNcPaint( wxNcPaintEvent& event )
{
    event.Skip() ;
}

int wxWindowMac::GetScrollPos(int orient) const
{
    if ( orient == wxHORIZONTAL )
    {
       if ( m_hScrollBar )
           return m_hScrollBar->GetThumbPosition() ;
    }
    else
    {
       if ( m_vScrollBar )
           return m_vScrollBar->GetThumbPosition() ;
    }

    return 0;
}

// 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 WXUNUSED(refresh))
{
    if ( orient == wxHORIZONTAL )
    {
       if ( m_hScrollBar )
           m_hScrollBar->SetThumbPosition( pos ) ;
    }
    else
    {
       if ( m_vScrollBar )
           m_vScrollBar->SetThumbPosition( pos ) ;
    }
}

void
wxWindowMac::AlwaysShowScrollbars(bool hflag, bool vflag)
{
    bool needVisibilityUpdate = false;

    if ( m_hScrollBarAlwaysShown != hflag )
    {
        m_hScrollBarAlwaysShown = hflag;
        needVisibilityUpdate = true;
    }

    if ( m_vScrollBarAlwaysShown != vflag )
    {
        m_vScrollBarAlwaysShown = vflag;
        needVisibilityUpdate = true;
    }

    if ( needVisibilityUpdate )
        DoUpdateScrollbarVisibility();
}

//
// we draw borders and grow boxes, are already set up and clipped in the current port / cgContextRef
// our own window origin is at leftOrigin/rightOrigin
//

void  wxWindowMac::MacPaintGrowBox()
{
    if ( IsTopLevel() )
        return ;

    if ( MacHasScrollBarCorner() )
    {
        Rect rect ;

        CGContextRef cgContext = (CGContextRef) MacGetCGContextRef() ;
        wxASSERT( cgContext ) ;

        m_peer->GetRect( &rect ) ;

        int size = m_hScrollBar ? m_hScrollBar->GetSize().y : ( m_vScrollBar ? m_vScrollBar->GetSize().x : MAC_SCROLLBAR_SIZE ) ;
        CGRect cgrect = CGRectMake( rect.right - size , rect.bottom - size , size , size ) ;
        CGPoint cgpoint = CGPointMake( rect.right - size , rect.bottom - size ) ;
        CGContextSaveGState( cgContext );

        if ( m_backgroundColour.Ok() )
        {
            CGContextSetFillColorWithColor( cgContext, m_backgroundColour.GetCGColor() );
        }
        else
        {
            CGContextSetRGBFillColor( cgContext, 1.0, 1.0 , 1.0 , 1.0 );
        }
        CGContextFillRect( cgContext, cgrect );
        CGContextRestoreGState( cgContext );
    }
}

void wxWindowMac::MacPaintBorders( int WXUNUSED(leftOrigin) , int WXUNUSED(rightOrigin) )
{
    if ( IsTopLevel() )
        return ;

    Rect rect ;
    bool hasFocus = m_peer->NeedsFocusRect() && m_peer->HasFocus() ;

    // back to the surrounding frame rectangle
    m_peer->GetRect( &rect ) ;
    InsetRect( &rect, -1 , -1 ) ;

    {
        CGRect cgrect = CGRectMake( rect.left , rect.top , rect.right - rect.left ,
            rect.bottom - rect.top ) ;

        HIThemeFrameDrawInfo info ;
        memset( &info, 0 , sizeof(info) ) ;

        info.version = 0 ;
        info.kind = 0 ;
        info.state = IsEnabled() ? kThemeStateActive : kThemeStateInactive ;
        info.isFocused = hasFocus ;

        CGContextRef cgContext = (CGContextRef) GetParent()->MacGetCGContextRef() ;
        wxASSERT( cgContext ) ;

        if ( HasFlag(wxRAISED_BORDER) || HasFlag(wxSUNKEN_BORDER) || HasFlag(wxDOUBLE_BORDER) )
        {
            info.kind = kHIThemeFrameTextFieldSquare ;
            HIThemeDrawFrame( &cgrect , &info , cgContext , kHIThemeOrientationNormal ) ;
        }
        else if ( HasFlag(wxSIMPLE_BORDER) )
        {
            info.kind = kHIThemeFrameListBox ;
            HIThemeDrawFrame( &cgrect , &info , cgContext , kHIThemeOrientationNormal ) ;
        }
        else if ( hasFocus )
        {
            HIThemeDrawFocusRect( &cgrect , true , cgContext , kHIThemeOrientationNormal ) ;
        }
#if 0 // TODO REMOVE now done in a separate call earlier in drawing the window itself
        m_peer->GetRect( &rect ) ;
        if ( MacHasScrollBarCorner() )
        {
            int variant = (m_hScrollBar == NULL ? m_vScrollBar : m_hScrollBar ) ->GetWindowVariant();
            int size = m_hScrollBar ? m_hScrollBar->GetSize().y : ( m_vScrollBar ? m_vScrollBar->GetSize().x : MAC_SCROLLBAR_SIZE ) ;
            CGRect cgrect = CGRectMake( rect.right - size , rect.bottom - size , size , size ) ;
            CGPoint cgpoint = CGPointMake( rect.right - size , rect.bottom - size ) ;
            HIThemeGrowBoxDrawInfo info ;
            memset( &info, 0, sizeof(info) ) ;
            info.version = 0 ;
            info.state = IsEnabled() ? kThemeStateActive : kThemeStateInactive ;
            info.kind = kHIThemeGrowBoxKindNone ;
            // contrary to the docs ...SizeSmall does not work
            info.size = kHIThemeGrowBoxSizeNormal ;
            info.direction = 0 ;
            HIThemeDrawGrowBox( &cgpoint , &info , cgContext , kHIThemeOrientationNormal ) ;
        }
#endif
    }
}

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

    wxWindowBase::RemoveChild( child ) ;
}

void wxWindowMac::DoUpdateScrollbarVisibility()
{
    bool triggerSizeEvent = false;

    if ( m_hScrollBar )
    {
        bool showHScrollBar = m_hScrollBarAlwaysShown || m_hScrollBar->IsNeeded();

        if ( m_hScrollBar->IsShown() != showHScrollBar )
        {
            m_hScrollBar->Show( showHScrollBar );
            triggerSizeEvent = true;
        }
    }

    if ( m_vScrollBar)
    {
        bool showVScrollBar = m_vScrollBarAlwaysShown || m_vScrollBar->IsNeeded();

        if ( m_vScrollBar->IsShown() != showVScrollBar )
        {
            m_vScrollBar->Show( showVScrollBar ) ;
            triggerSizeEvent = true;
        }
    }

    MacRepositionScrollBars() ;
    if ( triggerSizeEvent )
    {
        wxSizeEvent event(GetSize(), m_windowId);
        event.SetEventObject(this);
        HandleWindowEvent(event);
    }
}

// New function that will replace some of the above.
void wxWindowMac::SetScrollbar(int orient, int pos, int thumb,
                               int range, bool refresh)
{
    if ( orient == wxHORIZONTAL && m_hScrollBar )
        m_hScrollBar->SetScrollbar(pos, thumb, range, thumb, refresh);
    else if ( orient == wxVERTICAL && m_vScrollBar )
        m_vScrollBar->SetScrollbar(pos, thumb, range, thumb, refresh);

    DoUpdateScrollbarVisibility();
}

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

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

    {
        // note there currently is a bug in OSX which makes inefficient refreshes in case an entire control
        // area is scrolled, this does not occur if width and height are 2 pixels less,
        // TODO: write optimal workaround
        wxRect scrollrect( MacGetLeftBorderSize() , MacGetTopBorderSize() , width , height ) ;
        if ( rect )
            scrollrect.Intersect( *rect ) ;

        if ( m_peer->GetNeedsDisplay() )
        {
            // because HIViewScrollRect does not scroll the already invalidated area we have two options:
            // in case there is already a pending redraw on that area
            // either immediate redraw or full invalidate
#if 1
            // is the better overall solution, as it does not slow down scrolling
            m_peer->SetNeedsDisplay() ;
#else
            // this would be the preferred version for fast drawing controls
            HIViewRender(m_peer->GetControlRef()) ;
#endif
        }

        // as the native control might be not a 0/0 wx window coordinates, we have to offset
        scrollrect.Offset( -MacGetLeftBorderSize() , -MacGetTopBorderSize() ) ;
        m_peer->ScrollRect( &scrollrect , dx , dy ) ;

#if 0
        // this would be the preferred version for fast drawing controls
        HIViewRender(m_peer->GetControlRef()) ;
#endif
    }

    wxWindowMac *child;
    int x, y, w, h;
    for (wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); node; node = node->GetNext())
    {
        child = node->GetData();
        if (child == NULL)
            continue;
        if (child == m_vScrollBar)
            continue;
        if (child == m_hScrollBar)
            continue;
        if (child->IsTopLevel())
            continue;

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

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 );

        HandleWindowEvent(wevent);
    }
}

// Get the window with the focus
wxWindowMac *wxWindowBase::DoFindFocus()
{
    ControlRef control ;
    GetKeyboardFocus( GetUserFocusWindow() , &control ) ;
    return wxFindControlFromMacControl( control ) ;
}

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

// Raise the window to the top of the Z order
void wxWindowMac::Raise()
{
    m_peer->SetZOrder( true , NULL ) ;
}

// Lower the window to the bottom of the Z order
void wxWindowMac::Lower()
{
    m_peer->SetZOrder( false , NULL ) ;
}

// 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 = HandleWindowEvent(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() && !GetParent() )
                cursor = *wxSTANDARD_CURSOR ;
        }

        if ( cursor.Ok() )
            cursor.MacInstall() ;
    }

    return cursor.Ok() ;
}

wxString wxWindowMac::MacGetToolTipString( wxPoint &WXUNUSED(pt) )
{
#if wxUSE_TOOLTIPS
    if ( m_tooltip )
        return m_tooltip->GetTip() ;
#endif

    return wxEmptyString ;
}

void wxWindowMac::ClearBackground()
{
    Refresh() ;
    Update() ;
}

void wxWindowMac::Update()
{
    wxTopLevelWindowMac* top = MacGetTopLevelWindow();
    if (top)
        top->MacPerformUpdates() ;
}

wxTopLevelWindowMac* wxWindowMac::MacGetTopLevelWindow() const
{
    wxTopLevelWindowMac* win = NULL ;
    WindowRef window = (WindowRef) MacGetTopLevelWindowRef() ;
    if ( window )
        win = wxFindWinFromMacWindow( window ) ;

    return win ;
}

const wxRect& wxWindowMac::MacGetClippedClientRect() const
{
    MacUpdateClippedRects() ;

    return m_cachedClippedClientRect ;
}

const wxRect& wxWindowMac::MacGetClippedRect() const
{
    MacUpdateClippedRects() ;

    return m_cachedClippedRect ;
}

const wxRect&wxWindowMac:: MacGetClippedRectWithOuterStructure() const
{
    MacUpdateClippedRects() ;

    return m_cachedClippedRectWithOuterStructure ;
}

const wxRegion& wxWindowMac::MacGetVisibleRegion( bool includeOuterStructures )
{
    static wxRegion emptyrgn ;

    if ( !m_isBeingDeleted && IsShownOnScreen() )
    {
        MacUpdateClippedRects() ;
        if ( includeOuterStructures )
            return m_cachedClippedRegionWithOuterStructure ;
        else
            return m_cachedClippedRegion ;
    }
    else
    {
        return emptyrgn ;
    }
}

void wxWindowMac::MacUpdateClippedRects() const
{
    if ( m_cachedClippedRectValid )
        return ;

    // includeOuterStructures is true if we try to draw somthing like a focus ring etc.
    // also a window dc uses this, in this case we only clip in the hierarchy for hard
    // borders like a scrollwindow, splitter etc otherwise we end up in a paranoia having
    // to add focus borders everywhere

    Rect r, rIncludingOuterStructures ;

    m_peer->GetRect( &r ) ;
    r.left -= MacGetLeftBorderSize() ;
    r.top -= MacGetTopBorderSize() ;
    r.bottom += MacGetBottomBorderSize() ;
    r.right += MacGetRightBorderSize() ;

    r.right -= r.left ;
    r.bottom -= r.top ;
    r.left = 0 ;
    r.top = 0 ;

    rIncludingOuterStructures = r ;
    InsetRect( &rIncludingOuterStructures , -4 , -4 ) ;

    wxRect cl = GetClientRect() ;
    Rect rClient = { cl.y , cl.x , cl.y + cl.height , cl.x + cl.width } ;

    int x , y ;
    wxSize size ;
    const wxWindow* child = this ;
    const wxWindow* parent = NULL ;

    while ( !child->IsTopLevel() && ( parent = child->GetParent() ) != NULL )
    {
        if ( parent->MacIsChildOfClientArea(child) )
        {
            size = parent->GetClientSize() ;
            wxPoint origin = parent->GetClientAreaOrigin() ;
            x = origin.x ;
            y = origin.y ;
        }
        else
        {
            // this will be true for scrollbars, toolbars etc.
            size = parent->GetSize() ;
            y = parent->MacGetTopBorderSize() ;
            x = parent->MacGetLeftBorderSize() ;
            size.x -= parent->MacGetLeftBorderSize() + parent->MacGetRightBorderSize() ;
            size.y -= parent->MacGetTopBorderSize() + parent->MacGetBottomBorderSize() ;
        }

        parent->MacWindowToRootWindow( &x, &y ) ;
        MacRootWindowToWindow( &x , &y ) ;

        Rect rparent = { y , x , y + size.y , x + size.x } ;

        // the wxwindow and client rects will always be clipped
        SectRect( &r , &rparent , &r ) ;
        SectRect( &rClient , &rparent , &rClient ) ;

        // the structure only at 'hard' borders
        if ( parent->MacClipChildren() ||
            ( parent->GetParent() && parent->GetParent()->MacClipGrandChildren() ) )
        {
            SectRect( &rIncludingOuterStructures , &rparent , &rIncludingOuterStructures ) ;
        }

        child = parent ;
    }

    m_cachedClippedRect = wxRect( r.left , r.top , r.right - r.left , r.bottom - r.top ) ;
    m_cachedClippedClientRect = wxRect( rClient.left , rClient.top ,
        rClient.right - rClient.left , rClient.bottom - rClient.top ) ;
    m_cachedClippedRectWithOuterStructure = wxRect(
        rIncludingOuterStructures.left , rIncludingOuterStructures.top ,
        rIncludingOuterStructures.right - rIncludingOuterStructures.left ,
        rIncludingOuterStructures.bottom - rIncludingOuterStructures.top ) ;

    m_cachedClippedRegionWithOuterStructure = wxRegion( m_cachedClippedRectWithOuterStructure ) ;
    m_cachedClippedRegion = wxRegion( m_cachedClippedRect ) ;
    m_cachedClippedClientRegion = wxRegion( m_cachedClippedClientRect ) ;

    m_cachedClippedRectValid = true ;
}

/*
    This function must not change the updatergn !
 */
bool wxWindowMac::MacDoRedraw( void* updatergnr , long time )
{
    bool handled = false ;
    Rect updatebounds ;
    RgnHandle updatergn = (RgnHandle) updatergnr ;
    GetRegionBounds( updatergn , &updatebounds ) ;

    // wxLogDebug(wxT("update for %s bounds %d, %d, %d, %d"), wxString(GetClassInfo()->GetClassName()).c_str(), updatebounds.left, updatebounds.top , updatebounds.right , updatebounds.bottom ) ;

    if ( !EmptyRgn(updatergn) )
    {
        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 , updatergn , newupdate ) ;

        // first send an erase event to the entire update area
        {
            // for the toplevel window this really is the entire area
            // for all the others only their client area, otherwise they
            // might be drawing with full alpha and eg put blue into
            // the grow-box area of a scrolled window (scroll sample)
            wxDC* dc = new wxWindowDC(this);
            if ( IsTopLevel() )
                dc->SetClippingRegion(wxRegion(HIShapeCreateWithQDRgn(updatergn)));
            else
                dc->SetClippingRegion(wxRegion(HIShapeCreateWithQDRgn(newupdate)));

            wxEraseEvent eevent( GetId(), dc );
            eevent.SetEventObject( this );
            HandleWindowEvent( eevent );
            delete dc ;
        }

        MacPaintGrowBox();

        // calculate a client-origin version of the update rgn and set m_updateRegion to that
        OffsetRgn( newupdate , -origin.x , -origin.y ) ;
        m_updateRegion = wxRegion(HIShapeCreateWithQDRgn(newupdate)) ;
        DisposeRgn( newupdate ) ;

        if ( !m_updateRegion.Empty() )
        {
            // paint the window itself

            wxPaintEvent event;
            event.SetTimestamp(time);
            event.SetEventObject(this);
            HandleWindowEvent(event);
            handled = true ;
        }

        // now we cannot rely on having its borders drawn by a window itself, as it does not
        // get the updateRgn wide enough to always do so, so we do it from the parent
        // this would also be the place to draw any custom backgrounds for native controls
        // in Composited windowing
        wxPoint clientOrigin = GetClientAreaOrigin() ;

        wxWindowMac *child;
        int x, y, w, h;
        for (wxWindowList::compatibility_iterator node = GetChildren().GetFirst(); node; node = node->GetNext())
        {
            child = node->GetData();
            if (child == NULL)
                continue;
            if (child == m_vScrollBar)
                continue;
            if (child == m_hScrollBar)
                continue;
            if (child->IsTopLevel())
                continue;
            if (!child->IsShown())
                continue;

            // only draw those in the update region (add a safety margin of 10 pixels for shadow effects

            child->GetPosition( &x, &y );
            child->GetSize( &w, &h );
            Rect childRect = { y , x , y + h , x + w } ;
            OffsetRect( &childRect , clientOrigin.x , clientOrigin.y ) ;
            InsetRect( &childRect , -10 , -10) ;

            if ( RectInRgn( &childRect , updatergn ) )
            {
                // paint custom borders
                wxNcPaintEvent eventNc( child->GetId() );
                eventNc.SetEventObject( child );
                if ( !child->HandleWindowEvent( eventNc ) )
                {
                    child->MacPaintBorders(0, 0) ;
                }
            }
        }
    }

    return handled ;
}


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

    while ( iter )
    {
        if ( iter->IsTopLevel() )
        {
            wxTopLevelWindow* toplevel = wxDynamicCast(iter,wxTopLevelWindow);
            if ( toplevel )
                return toplevel->MacGetWindowRef();
#if wxUSE_POPUPWIN
            wxPopupWindow* popupwin = wxDynamicCast(iter,wxPopupWindow);
            if ( popupwin )
                return popupwin->MacGetPopupWindowRef();
#endif
        }
        iter = iter->GetParent() ;
    }

    return NULL ;
}

bool wxWindowMac::MacHasScrollBarCorner() const
{
    /* Returns whether the scroll bars in a wxScrolledWindow should be
     * shortened. Scroll bars should be shortened if either:
     *
     * - both scroll bars are visible, or
     *
     * - there is a resize box in the parent frame's corner and this
     *   window shares the bottom and right edge with the parent
     *   frame.
     */

    if ( m_hScrollBar == NULL && m_vScrollBar == NULL )
        return false;

    if ( ( m_hScrollBar && m_hScrollBar->IsShown() )
         && ( m_vScrollBar && m_vScrollBar->IsShown() ) )
    {
        // Both scroll bars visible
        return true;
    }
    else
    {
        wxPoint thisWindowBottomRight = GetScreenRect().GetBottomRight();

        for ( const wxWindow *win = this; win; win = win->GetParent() )
        {
            const wxFrame *frame = wxDynamicCast( win, wxFrame ) ;
            if ( frame )
            {
                if ( frame->GetWindowStyleFlag() & wxRESIZE_BORDER )
                {
                    // Parent frame has resize handle
                    wxPoint frameBottomRight = frame->GetScreenRect().GetBottomRight();

                    // Note: allow for some wiggle room here as wxMac's
                    // window rect calculations seem to be imprecise
                    if ( abs( thisWindowBottomRight.x - frameBottomRight.x ) <= 2
                        && abs( thisWindowBottomRight.y - frameBottomRight.y ) <= 2 )
                    {
                        // Parent frame has resize handle and shares
                        // right bottom corner
                        return true ;
                    }
                    else
                    {
                        // Parent frame has resize handle but doesn't
                        // share right bottom corner
                        return false ;
                    }
                }
                else
                {
                    // Parent frame doesn't have resize handle
                    return false ;
                }
            }
        }

        // No parent frame found
        return false ;
    }
}

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

    if ( style & ( wxVSCROLL | wxHSCROLL ) )
    {
        int scrlsize = MAC_SCROLLBAR_SIZE ;
        if ( GetWindowVariant() == wxWINDOW_VARIANT_SMALL || GetWindowVariant() == wxWINDOW_VARIANT_MINI )
        {
            scrlsize = MAC_SMALL_SCROLLBAR_SIZE ;
        }

        int adjust = MacHasScrollBarCorner() ? scrlsize - 1: 0 ;
        int width, height ;
        GetClientSize( &width , &height ) ;

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

        // we have to set the min size to a smaller value, otherwise they cannot get smaller (InitialSize sets MinSize)
        if ( style & wxVSCROLL )
        {
            m_vScrollBar = new wxScrollBar((wxWindow*)this, wxID_ANY, vPoint, vSize , wxVERTICAL);
            m_vScrollBar->SetMinSize( wxDefaultSize );
        }

        if ( style  & wxHSCROLL )
        {
            m_hScrollBar = new wxScrollBar((wxWindow*)this, wxID_ANY, hPoint, hSize , wxHORIZONTAL);
            m_hScrollBar->SetMinSize( wxDefaultSize );
        }
    }

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

bool wxWindowMac::MacIsChildOfClientArea( const wxWindow* child ) const
{
    bool result = ((child == NULL) || ((child != m_hScrollBar) && (child != m_vScrollBar)));

    return result ;
}

void wxWindowMac::MacRepositionScrollBars()
{
    if ( !m_hScrollBar && !m_vScrollBar )
        return ;

    int scrlsize = m_hScrollBar ? m_hScrollBar->GetSize().y : ( m_vScrollBar ? m_vScrollBar->GetSize().x : MAC_SCROLLBAR_SIZE ) ;
    int adjust = MacHasScrollBarCorner() ? scrlsize - 1 : 0 ;

    // get real client area
    int width, height ;
    GetSize( &width , &height );

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

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

#if 0
    int x = 0, y = 0, w, h ;
    GetSize( &w , &h ) ;

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

    wxWindowMac *iter = (wxWindowMac*)this ;

    int totW = 10000 , totH = 10000;
    while ( iter )
    {
        if ( iter->IsTopLevel() )
        {
            iter->GetSize( &totW , &totH ) ;
            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 ;
    }
#endif

    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();
}

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

    m_cachedClippedRectValid = false ;

    wxWindowMac *child;
    wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
    while ( node )
    {
        child = node->GetData();
        child->MacSuperChangedPosition() ;

        node = node->GetNext();
    }
}

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

    wxWindowMac *child;
    wxWindowList::compatibility_iterator node = GetChildren().GetFirst();
    while ( node )
    {
        child = node->GetData();
        child->MacTopLevelWindowChangedPosition() ;

        node = node->GetNext();
    }
}

long wxWindowMac::MacGetLeftBorderSize() const
{
    if ( IsTopLevel() )
        return 0 ;

    SInt32 border = 0 ;

    if (HasFlag(wxRAISED_BORDER) || HasFlag( wxSUNKEN_BORDER) || HasFlag(wxDOUBLE_BORDER))
    {
        // this metric is only the 'outset' outside the simple frame rect
        GetThemeMetric( kThemeMetricEditTextFrameOutset , &border ) ;
        border += 1 ;
    }
    else if (HasFlag(wxSIMPLE_BORDER))
    {
        // this metric is only the 'outset' outside the simple frame rect
        GetThemeMetric( kThemeMetricListBoxFrameOutset , &border ) ;
        border += 1 ;
    }

    return border ;
}

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 & ~wxBORDER_MASK ;
}

// 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
        // VZ: shouldn't we move this to base class then?

        // 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()));
        evtCtx.SetEventObject(this);
        if ( ! HandleWindowEvent(evtCtx) )
            event.Skip() ;
    }
    else
    {
        event.Skip() ;
    }
}

void wxWindowMac::OnPaint( wxPaintEvent & WXUNUSED(event) )
{
    if ( wxTheApp->MacGetCurrentEvent() != NULL && wxTheApp->MacGetCurrentEventHandlerCallRef() != NULL
         && GetBackgroundStyle() != wxBG_STYLE_TRANSPARENT )
        CallNextEventHandler(
            (EventHandlerCallRef)wxTheApp->MacGetCurrentEventHandlerCallRef() ,
            (EventRef) wxTheApp->MacGetCurrentEvent() ) ;
}

void wxWindowMac::MacHandleControlClick(WXWidget WXUNUSED(control),
                                        wxInt16 WXUNUSED(controlpart),
                                        bool WXUNUSED(mouseStillDown))
{
}

Rect wxMacGetBoundsForControl( wxWindow* window , const wxPoint& pos , const wxSize &size , bool adjustForOrigin )
{
    int x, y, w, h ;

    window->MacGetBoundsForControl( pos , size , x , y, w, h , adjustForOrigin ) ;
    Rect bounds = { y, x, y + h, x + w };

    return bounds ;
}

wxInt32 wxWindowMac::MacControlHit(WXEVENTHANDLERREF WXUNUSED(handler) , WXEVENTREF WXUNUSED(event) )
{
    return eventNotHandledErr ;
}

bool wxWindowMac::Reparent(wxWindowBase *newParentBase)
{
    wxWindowMac *newParent = (wxWindowMac *)newParentBase;
    if ( !wxWindowBase::Reparent(newParent) )
        return false;

    // copied from MacPostControlCreate
    ControlRef container = (ControlRef) GetParent()->GetHandle() ;

    wxASSERT_MSG( container != NULL , wxT("No valid mac container control") ) ;

    ::EmbedControl( m_peer->GetControlRef() , container ) ;

    return true;
}

bool wxWindowMac::SetTransparent(wxByte alpha)
{
    SetBackgroundStyle(wxBG_STYLE_TRANSPARENT);

    if ( alpha != m_macAlpha )
    {
        m_macAlpha = alpha ;
        Refresh() ;
    }
    return true ;
}


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

wxByte wxWindowMac::GetTransparent() const
{
    return m_macAlpha ;
}

bool wxWindowMac::IsShownOnScreen() const
{
#if TARGET_API_MAC_OSX
    if ( m_peer && m_peer->Ok() )
    {
        bool peerVis = m_peer->IsVisible();
        bool wxVis = wxWindowBase::IsShownOnScreen();
        if( peerVis != wxVis )
        {
            // CS : put a breakpoint here to investigate differences
            // between native an wx visibilities
            // the only place where I've encountered them until now
            // are the hiding/showing sequences where the vis-changed event is 
            // first sent to the innermost control, while wx does things
            // from the outmost control
            wxVis = wxWindowBase::IsShownOnScreen();
            return wxVis;
        }
        
        return m_peer->IsVisible();
    }
#endif

    return wxWindowBase::IsShownOnScreen();
}