src/mac/carbon/region.cpp

/////////////////////////////////////////////////////////////////////////////
// File:      region.cpp
// Purpose:   Region class
// Author:    Stefan Csomor
// Created:   Fri Oct 24 10:46:34 MET 1997
// RCS-ID:    $Id$
// Copyright: (c) 1997 Stefan Csomor
// Licence:   wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "region.h"
#endif

#include "wx/wxprec.h"

#include "wx/region.h"
#include "wx/gdicmn.h"
#include "wx/mac/uma.h"

IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)

//-----------------------------------------------------------------------------
// wxRegionRefData implementation
//-----------------------------------------------------------------------------

class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
public:
    wxRegionRefData()
    {
        m_macRgn = NewRgn() ;
    }

    wxRegionRefData(const wxRegionRefData& data)
        : wxGDIRefData()
    {
        m_macRgn = NewRgn() ;
        CopyRgn( data.m_macRgn , m_macRgn ) ;
    }

    ~wxRegionRefData()
    {
        DisposeRgn( m_macRgn ) ;
    }
    RgnHandle    m_macRgn ;
};

#define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
#define OTHER_M_REGION(a) (((wxRegionRefData*)(a.m_refData))->m_macRgn)

//-----------------------------------------------------------------------------
// wxRegion
//-----------------------------------------------------------------------------

/*!
 * Create an empty region.
 */
wxRegion::wxRegion()
{
    m_refData = new wxRegionRefData;
}

wxRegion::wxRegion(WXHRGN hRegion )
{
    m_refData = new wxRegionRefData;
    CopyRgn( (RgnHandle) hRegion , (RgnHandle) M_REGION ) ;
}

wxRegion::wxRegion(long x, long y, long w, long h)
{
    m_refData = new wxRegionRefData;
    SetRectRgn( (RgnHandle) M_REGION , x , y , x+w , y+h ) ;
}

wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
{
    m_refData = new wxRegionRefData;
    SetRectRgn( (RgnHandle) M_REGION , topLeft.x , topLeft.y , bottomRight.x , bottomRight.y ) ;
}

wxRegion::wxRegion(const wxRect& rect)
{
    m_refData = new wxRegionRefData;
    SetRectRgn( (RgnHandle) M_REGION , rect.x , rect.y , rect.x+rect.width , rect.y+rect.height ) ;
}

wxRegion::wxRegion(size_t n, const wxPoint *points, int WXUNUSED(fillStyle))
{
    m_refData = new wxRegionRefData;

    // OS X somehow does not collect the region invisibly as before, so sometimes things
    // get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now

	GWorldPtr	gWorld = NULL;
	GWorldPtr	oldWorld;
	GDHandle	oldGDHandle;
    OSStatus    err ;
	Rect		destRect = {0,0,1,1};

    ::GetGWorld( &oldWorld, &oldGDHandle );
    err = ::NewGWorld( &gWorld, 32, &destRect, nil, nil, 0 );
    if ( err == noErr )
    {
        ::SetGWorld( gWorld, GetGDevice() );

        OpenRgn();

        wxCoord x1, x2 , y1 , y2 ;
        x2 = x1 = points[0].x ;
        y2 = y1 = points[0].y ;
        ::MoveTo(x1,y1);
        for (size_t i = 1; i < n; i++)
        {
            x2 = points[i].x ;
            y2 = points[i].y ;
            ::LineTo(x2, y2);
        }
        // close the polyline if necessary
        if ( x1 != x2 || y1 != y2 )
        {
            ::LineTo(x1,y1 ) ;
        }
        CloseRgn( M_REGION ) ;
        ::SetGWorld( oldWorld, oldGDHandle );
    }
}

/*!
 * Destroy the region.
 */
wxRegion::~wxRegion()
{
    // m_refData unrefed in ~wxObject
}

//-----------------------------------------------------------------------------
//# Modify region
//-----------------------------------------------------------------------------

//! Clear current region
void wxRegion::Clear()
{
    UnRef();
}

// Move the region
bool wxRegion::Offset(wxCoord x, wxCoord y)
{
    wxCHECK_MSG( M_REGION, false, _T("invalid wxRegion") );

    if ( !x && !y )
    {
        // nothing to do
        return true;
    }

    OffsetRgn( M_REGION , x , y ) ;
    return true ;
}


//! Combine rectangle (x, y, w, h) with this.
bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
{
    // Don't change shared data
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
    }
    else if (m_refData->GetRefCount() > 1)
    {
        wxRegionRefData* ref = (wxRegionRefData*)m_refData;
        UnRef();
        m_refData = new wxRegionRefData(*ref);
    }
    RgnHandle rgn = NewRgn() ;
        SetRectRgn( rgn , x , y, x+width,y + height ) ;

    switch (op)
    {
        case wxRGN_AND:
            SectRgn( M_REGION , rgn , M_REGION ) ;
            break ;
        case wxRGN_OR:
            UnionRgn( M_REGION , rgn , M_REGION ) ;
            break ;
        case wxRGN_XOR:
             XorRgn( M_REGION , rgn , M_REGION ) ;
            break ;
        case wxRGN_DIFF:
            DiffRgn( M_REGION , rgn , M_REGION ) ;
            break ;
        case wxRGN_COPY:
        default:
                   CopyRgn( rgn ,M_REGION ) ;
            break ;
    }

        DisposeRgn( rgn ) ;

    return TRUE;
}

//! Union /e region with this.
bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
{
    if (region.Empty())
        return FALSE;

    // Don't change shared data
    if (!m_refData) {
        m_refData = new wxRegionRefData();
    }
    else    if (m_refData->GetRefCount() > 1)
    {
        wxRegionRefData* ref = (wxRegionRefData*)m_refData;
        UnRef();
        m_refData = new wxRegionRefData(*ref);
    }

    switch (op)
    {
        case wxRGN_AND:
            SectRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
            break ;
        case wxRGN_OR:
            UnionRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
            break ;
        case wxRGN_XOR:
             XorRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
            break ;
        case wxRGN_DIFF:
            DiffRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
            break ;
        case wxRGN_COPY:
        default:
                   CopyRgn( OTHER_M_REGION(region) ,M_REGION ) ;
            break ;
    }

    return TRUE;
}

bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
{
    return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
}

//-----------------------------------------------------------------------------
//# Information on region
//-----------------------------------------------------------------------------

// Outer bounds of region
void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
{
    if (m_refData)
    {
        Rect box ;
        GetRegionBounds( M_REGION , &box ) ;
        x = box.left ;
        y = box.top ;
        w = box.right - box.left ;
        h = box.bottom - box.top ;
    }
    else
    {
        x = y = w = h = 0;
    }
}

wxRect wxRegion::GetBox() const
{
    wxCoord x, y, w, h;
    GetBox(x, y, w, h);
    return wxRect(x, y, w, h);
}

// Is region empty?
bool wxRegion::Empty() const
{
    return EmptyRgn( M_REGION ) ;
}

const WXHRGN wxRegion::GetWXHRGN() const
{
    return M_REGION ;
}

//-----------------------------------------------------------------------------
//# Tests
//-----------------------------------------------------------------------------

// Does the region contain the point (x,y)?
wxRegionContain wxRegion::Contains(long x, long y) const
{
    if (!m_refData)
        return wxOutRegion;

    // TODO. Return wxInRegion if within region.
    if (0)
        return wxInRegion;
    return wxOutRegion;
}

// Does the region contain the point pt?
wxRegionContain wxRegion::Contains(const wxPoint& pt) const
{
    if (!m_refData)
        return wxOutRegion;

    Point p = { pt.y , pt.x } ;
    if (PtInRgn( p , M_REGION ) )
        return wxInRegion;

    return wxOutRegion;
}

// Does the region contain the rectangle (x, y, w, h)?
wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
{
    if (!m_refData)
        return wxOutRegion;

    Rect rect = { y , x , y + h , x + w } ;
    if (RectInRgn( &rect , M_REGION ) )
        return wxInRegion;
    else
        return wxOutRegion;
}

// Does the region contain the rectangle rect
wxRegionContain wxRegion::Contains(const wxRect& rect) const
{
    if (!m_refData)
        return wxOutRegion;

    long x, y, w, h;
    x = rect.x;
    y = rect.y;
    w = rect.GetWidth();
    h = rect.GetHeight();
    return Contains(x, y, w, h);
}

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//                               wxRegionIterator                            //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

/*!
 * Initialize empty iterator
 */
wxRegionIterator::wxRegionIterator()
    : m_current(0), m_numRects(0), m_rects(NULL)
{
}

wxRegionIterator::~wxRegionIterator()
{
    if (m_rects) {
        delete[] m_rects;
        m_rects = NULL;
    }
}

wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
    : wxObject()
    , m_current(iterator.m_current)
    , m_numRects(0)
    , m_rects(NULL)
{
    SetRects(iterator.m_numRects, iterator.m_rects);
}

wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
{
    m_current  = iterator.m_current;
    SetRects(iterator.m_numRects, iterator.m_rects);
    return *this;
}

/*!
 * Set iterator rects for region
 */
void wxRegionIterator::SetRects(long numRects, wxRect *rects)
{
    if (m_rects) {
        delete[] m_rects;
        m_rects = NULL;
    }
    if (rects)
    {
        int i;
        m_rects = new wxRect[numRects];
        for (i = 0; i < numRects; i++)
            m_rects[i] = rects[i];
    }
    m_numRects = numRects;
}

/*!
 * Initialize iterator for region
 */
wxRegionIterator::wxRegionIterator(const wxRegion& region)
{
    m_rects = NULL;

    Reset(region);
}

/*!
 * Reset iterator for a new /e region.
 */

OSStatus wxMacRegionToRectsCounterCallback (
    UInt16 message, RgnHandle region, const Rect *rect, void *data)
{
    long *m_numRects = (long*) data ;
    if ( message == kQDRegionToRectsMsgInit )
    {
        (*m_numRects) = 0 ;
    }
    else if (message == kQDRegionToRectsMsgParse)
    {
        (*m_numRects) += 1 ;
    }
    return noErr;
}

class RegionToRectsCallbackData
{
public :
    wxRect* m_rects ;
    long m_current ;
} ;

OSStatus wxMacRegionToRectsSetterCallback (
    UInt16 message, RgnHandle region, const Rect *rect, void *data)
{
    if (message == kQDRegionToRectsMsgParse)
    {
        RegionToRectsCallbackData *cb = (RegionToRectsCallbackData*) data ;
        cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
    }
    return noErr;
}

void wxRegionIterator::Reset(const wxRegion& region)
{
    m_current = 0;
    m_region = region;

    if (m_rects) {
        delete[] m_rects;
        m_rects = NULL;
    }

    if (m_region.Empty())
        m_numRects = 0;
    else
    {
        RegionToRectsUPP proc = NewRegionToRectsUPP (wxMacRegionToRectsCounterCallback);

        OSStatus err = noErr;
        err = QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&m_numRects);
        if (err == noErr)
        {
            DisposeRegionToRectsUPP (proc);
            proc = NewRegionToRectsUPP (wxMacRegionToRectsSetterCallback);
            m_rects = new wxRect[m_numRects];
            RegionToRectsCallbackData data ;
            data.m_rects = m_rects ;
            data.m_current = 0 ;
            QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&data);
        }
        else
        {
            m_numRects = 0 ;
        }
        DisposeRegionToRectsUPP (proc);
    }
}

/*!
 * Increment iterator. The rectangle returned is the one after the
 * incrementation.
 */
wxRegionIterator& wxRegionIterator::operator ++ ()
{
    if (m_current < m_numRects)
        ++m_current;
    return *this;
}

/*!
 * Increment iterator. The rectangle returned is the one before the
 * incrementation.
 */
wxRegionIterator wxRegionIterator::operator ++ (int)
{
    wxRegionIterator previous(*this);

    if (m_current < m_numRects)
        ++m_current;

    return previous;
}

long wxRegionIterator::GetX() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].x;
    return 0;
}

long wxRegionIterator::GetY() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].y;
    return 0;
}

long wxRegionIterator::GetW() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].width ;
    return 0;
}

long wxRegionIterator::GetH() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].height;
    return 0;
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// File: region.cpp
	3	// Purpose: Region class
	4	// Author: Stefan Csomor
	5	// Created: Fri Oct 24 10:46:34 MET 1997
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 1997 Stefan Csomor
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
	12	#pragma implementation "region.h"
	13	#endif
	14
	15	#include "wx/wxprec.h"
	16
	17	#include "wx/region.h"
	18	#include "wx/gdicmn.h"
	19	#include "wx/mac/uma.h"
	20
	21	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
	22	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
	23
	24	//-----------------------------------------------------------------------------
	25	// wxRegionRefData implementation
	26	//-----------------------------------------------------------------------------
	27
	28	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
	29	public:
	30	wxRegionRefData()
	31	{
	32	m_macRgn = NewRgn() ;
	33	}
	34
	35	wxRegionRefData(const wxRegionRefData& data)
	36	: wxGDIRefData()
	37	{
	38	m_macRgn = NewRgn() ;
	39	CopyRgn( data.m_macRgn , m_macRgn ) ;
	40	}
	41
	42	~wxRegionRefData()
	43	{
	44	DisposeRgn( m_macRgn ) ;
	45	}
	46	RgnHandle m_macRgn ;
	47	};
	48
	49	#define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
	50	#define OTHER_M_REGION(a) (((wxRegionRefData*)(a.m_refData))->m_macRgn)
	51
	52	//-----------------------------------------------------------------------------
	53	// wxRegion
	54	//-----------------------------------------------------------------------------
	55
	56	/*!
	57	* Create an empty region.
	58	*/
	59	wxRegion::wxRegion()
	60	{
	61	m_refData = new wxRegionRefData;
	62	}
	63
	64	wxRegion::wxRegion(WXHRGN hRegion )
	65	{
	66	m_refData = new wxRegionRefData;
	67	CopyRgn( (RgnHandle) hRegion , (RgnHandle) M_REGION ) ;
	68	}
	69
	70	wxRegion::wxRegion(long x, long y, long w, long h)
	71	{
	72	m_refData = new wxRegionRefData;
	73	SetRectRgn( (RgnHandle) M_REGION , x , y , x+w , y+h ) ;
	74	}
	75
	76	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
	77	{
	78	m_refData = new wxRegionRefData;
	79	SetRectRgn( (RgnHandle) M_REGION , topLeft.x , topLeft.y , bottomRight.x , bottomRight.y ) ;
	80	}
	81
	82	wxRegion::wxRegion(const wxRect& rect)
	83	{
	84	m_refData = new wxRegionRefData;
	85	SetRectRgn( (RgnHandle) M_REGION , rect.x , rect.y , rect.x+rect.width , rect.y+rect.height ) ;
	86	}
	87
	88	wxRegion::wxRegion(size_t n, const wxPoint *points, int WXUNUSED(fillStyle))
	89	{
	90	m_refData = new wxRegionRefData;
	91
	92	// OS X somehow does not collect the region invisibly as before, so sometimes things
	93	// get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now
	94
	95	GWorldPtr gWorld = NULL;
	96	GWorldPtr oldWorld;
	97	GDHandle oldGDHandle;
	98	OSStatus err ;
	99	Rect destRect = {0,0,1,1};
	100
	101	::GetGWorld( &oldWorld, &oldGDHandle );
	102	err = ::NewGWorld( &gWorld, 32, &destRect, nil, nil, 0 );
	103	if ( err == noErr )
	104	{
	105	::SetGWorld( gWorld, GetGDevice() );
	106
	107	OpenRgn();
	108
	109	wxCoord x1, x2 , y1 , y2 ;
	110	x2 = x1 = points[0].x ;
	111	y2 = y1 = points[0].y ;
	112	::MoveTo(x1,y1);
	113	for (size_t i = 1; i < n; i++)
	114	{
	115	x2 = points[i].x ;
	116	y2 = points[i].y ;
	117	::LineTo(x2, y2);
	118	}
	119	// close the polyline if necessary
	120	if ( x1 != x2 \|\| y1 != y2 )
	121	{
	122	::LineTo(x1,y1 ) ;
	123	}
	124	CloseRgn( M_REGION ) ;
	125	::SetGWorld( oldWorld, oldGDHandle );
	126	}
	127	}
	128
	129	/*!
	130	* Destroy the region.
	131	*/
	132	wxRegion::~wxRegion()
	133	{
	134	// m_refData unrefed in ~wxObject
	135	}
	136
	137	//-----------------------------------------------------------------------------
	138	//# Modify region
	139	//-----------------------------------------------------------------------------
	140
	141	//! Clear current region
	142	void wxRegion::Clear()
	143	{
	144	UnRef();
	145	}
	146
	147	// Move the region
	148	bool wxRegion::Offset(wxCoord x, wxCoord y)
	149	{
	150	wxCHECK_MSG( M_REGION, false, _T("invalid wxRegion") );
	151
	152	if ( !x && !y )
	153	{
	154	// nothing to do
	155	return true;
	156	}
	157
	158	OffsetRgn( M_REGION , x , y ) ;
	159	return true ;
	160	}
	161
	162
	163	//! Combine rectangle (x, y, w, h) with this.
	164	bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
	165	{
	166	// Don't change shared data
	167	if (!m_refData)
	168	{
	169	m_refData = new wxRegionRefData();
	170	}
	171	else if (m_refData->GetRefCount() > 1)
	172	{
	173	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	174	UnRef();
	175	m_refData = new wxRegionRefData(*ref);
	176	}
	177	RgnHandle rgn = NewRgn() ;
	178	SetRectRgn( rgn , x , y, x+width,y + height ) ;
	179
	180	switch (op)
	181	{
	182	case wxRGN_AND:
	183	SectRgn( M_REGION , rgn , M_REGION ) ;
	184	break ;
	185	case wxRGN_OR:
	186	UnionRgn( M_REGION , rgn , M_REGION ) ;
	187	break ;
	188	case wxRGN_XOR:
	189	XorRgn( M_REGION , rgn , M_REGION ) ;
	190	break ;
	191	case wxRGN_DIFF:
	192	DiffRgn( M_REGION , rgn , M_REGION ) ;
	193	break ;
	194	case wxRGN_COPY:
	195	default:
	196	CopyRgn( rgn ,M_REGION ) ;
	197	break ;
	198	}
	199
	200	DisposeRgn( rgn ) ;
	201
	202	return TRUE;
	203	}
	204
	205	//! Union /e region with this.
	206	bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
	207	{
	208	if (region.Empty())
	209	return FALSE;
	210
	211	// Don't change shared data
	212	if (!m_refData) {
	213	m_refData = new wxRegionRefData();
	214	}
	215	else if (m_refData->GetRefCount() > 1)
	216	{
	217	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	218	UnRef();
	219	m_refData = new wxRegionRefData(*ref);
	220	}
	221
	222	switch (op)
	223	{
	224	case wxRGN_AND:
	225	SectRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	226	break ;
	227	case wxRGN_OR:
	228	UnionRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	229	break ;
	230	case wxRGN_XOR:
	231	XorRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	232	break ;
	233	case wxRGN_DIFF:
	234	DiffRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	235	break ;
	236	case wxRGN_COPY:
	237	default:
	238	CopyRgn( OTHER_M_REGION(region) ,M_REGION ) ;
	239	break ;
	240	}
	241
	242	return TRUE;
	243	}
	244
	245	bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
	246	{
	247	return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
	248	}
	249
	250	//-----------------------------------------------------------------------------
	251	//# Information on region
	252	//-----------------------------------------------------------------------------
	253
	254	// Outer bounds of region
	255	void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
	256	{
	257	if (m_refData)
	258	{
	259	Rect box ;
	260	GetRegionBounds( M_REGION , &box ) ;
	261	x = box.left ;
	262	y = box.top ;
	263	w = box.right - box.left ;
	264	h = box.bottom - box.top ;
	265	}
	266	else
	267	{
	268	x = y = w = h = 0;
	269	}
	270	}
	271
	272	wxRect wxRegion::GetBox() const
	273	{
	274	wxCoord x, y, w, h;
	275	GetBox(x, y, w, h);
	276	return wxRect(x, y, w, h);
	277	}
	278
	279	// Is region empty?
	280	bool wxRegion::Empty() const
	281	{
	282	return EmptyRgn( M_REGION ) ;
	283	}
	284
	285	const WXHRGN wxRegion::GetWXHRGN() const
	286	{
	287	return M_REGION ;
	288	}
	289
	290	//-----------------------------------------------------------------------------
	291	//# Tests
	292	//-----------------------------------------------------------------------------
	293
	294	// Does the region contain the point (x,y)?
	295	wxRegionContain wxRegion::Contains(long x, long y) const
	296	{
	297	if (!m_refData)
	298	return wxOutRegion;
	299
	300	// TODO. Return wxInRegion if within region.
	301	if (0)
	302	return wxInRegion;
	303	return wxOutRegion;
	304	}
	305
	306	// Does the region contain the point pt?
	307	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
	308	{
	309	if (!m_refData)
	310	return wxOutRegion;
	311
	312	Point p = { pt.y , pt.x } ;
	313	if (PtInRgn( p , M_REGION ) )
	314	return wxInRegion;
	315
	316	return wxOutRegion;
	317	}
	318
	319	// Does the region contain the rectangle (x, y, w, h)?
	320	wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
	321	{
	322	if (!m_refData)
	323	return wxOutRegion;
	324
	325	Rect rect = { y , x , y + h , x + w } ;
	326	if (RectInRgn( &rect , M_REGION ) )
	327	return wxInRegion;
	328	else
	329	return wxOutRegion;
	330	}
	331
	332	// Does the region contain the rectangle rect
	333	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	334	{
	335	if (!m_refData)
	336	return wxOutRegion;
	337
	338	long x, y, w, h;
	339	x = rect.x;
	340	y = rect.y;
	341	w = rect.GetWidth();
	342	h = rect.GetHeight();
	343	return Contains(x, y, w, h);
	344	}
	345
	346	///////////////////////////////////////////////////////////////////////////////
	347	// //
	348	// wxRegionIterator //
	349	// //
	350	///////////////////////////////////////////////////////////////////////////////
	351
	352	/*!
	353	* Initialize empty iterator
	354	*/
	355	wxRegionIterator::wxRegionIterator()
	356	: m_current(0), m_numRects(0), m_rects(NULL)
	357	{
	358	}
	359
	360	wxRegionIterator::~wxRegionIterator()
	361	{
	362	if (m_rects) {
	363	delete[] m_rects;
	364	m_rects = NULL;
	365	}
	366	}
	367
	368	wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
	369	: wxObject()
	370	, m_current(iterator.m_current)
	371	, m_numRects(0)
	372	, m_rects(NULL)
	373	{
	374	SetRects(iterator.m_numRects, iterator.m_rects);
	375	}
	376
	377	wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
	378	{
	379	m_current = iterator.m_current;
	380	SetRects(iterator.m_numRects, iterator.m_rects);
	381	return *this;
	382	}
	383
	384	/*!
	385	* Set iterator rects for region
	386	*/
	387	void wxRegionIterator::SetRects(long numRects, wxRect *rects)
	388	{
	389	if (m_rects) {
	390	delete[] m_rects;
	391	m_rects = NULL;
	392	}
	393	if (rects)
	394	{
	395	int i;
	396	m_rects = new wxRect[numRects];
	397	for (i = 0; i < numRects; i++)
	398	m_rects[i] = rects[i];
	399	}
	400	m_numRects = numRects;
	401	}
	402
	403	/*!
	404	* Initialize iterator for region
	405	*/
	406	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	407	{
	408	m_rects = NULL;
	409
	410	Reset(region);
	411	}
	412
	413	/*!
	414	* Reset iterator for a new /e region.
	415	*/
	416
	417	OSStatus wxMacRegionToRectsCounterCallback (
	418	UInt16 message, RgnHandle region, const Rect rect, void data)
	419	{
	420	long m_numRects = (long) data ;
	421	if ( message == kQDRegionToRectsMsgInit )
	422	{
	423	(*m_numRects) = 0 ;
	424	}
	425	else if (message == kQDRegionToRectsMsgParse)
	426	{
	427	(*m_numRects) += 1 ;
	428	}
	429	return noErr;
	430	}
	431
	432	class RegionToRectsCallbackData
	433	{
	434	public :
	435	wxRect* m_rects ;
	436	long m_current ;
	437	} ;
	438
	439	OSStatus wxMacRegionToRectsSetterCallback (
	440	UInt16 message, RgnHandle region, const Rect rect, void data)
	441	{
	442	if (message == kQDRegionToRectsMsgParse)
	443	{
	444	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	445	cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
	446	}
	447	return noErr;
	448	}
	449
	450	void wxRegionIterator::Reset(const wxRegion& region)
	451	{
	452	m_current = 0;
	453	m_region = region;
	454
	455	if (m_rects) {
	456	delete[] m_rects;
	457	m_rects = NULL;
	458	}
	459
	460	if (m_region.Empty())
	461	m_numRects = 0;
	462	else
	463	{
	464	RegionToRectsUPP proc = NewRegionToRectsUPP (wxMacRegionToRectsCounterCallback);
	465
	466	OSStatus err = noErr;
	467	err = QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&m_numRects);
	468	if (err == noErr)
	469	{
	470	DisposeRegionToRectsUPP (proc);
	471	proc = NewRegionToRectsUPP (wxMacRegionToRectsSetterCallback);
	472	m_rects = new wxRect[m_numRects];
	473	RegionToRectsCallbackData data ;
	474	data.m_rects = m_rects ;
	475	data.m_current = 0 ;
	476	QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&data);
	477	}
	478	else
	479	{
	480	m_numRects = 0 ;
	481	}
	482	DisposeRegionToRectsUPP (proc);
	483	}
	484	}
	485
	486	/*!
	487	* Increment iterator. The rectangle returned is the one after the
	488	* incrementation.
	489	*/
	490	wxRegionIterator& wxRegionIterator::operator ++ ()
	491	{
	492	if (m_current < m_numRects)
	493	++m_current;
	494	return *this;
	495	}
	496
	497	/*!
	498	* Increment iterator. The rectangle returned is the one before the
	499	* incrementation.
	500	*/
	501	wxRegionIterator wxRegionIterator::operator ++ (int)
	502	{
	503	wxRegionIterator previous(*this);
	504
	505	if (m_current < m_numRects)
	506	++m_current;
	507
	508	return previous;
	509	}
	510
	511	long wxRegionIterator::GetX() const
	512	{
	513	if (m_current < m_numRects)
	514	return m_rects[m_current].x;
	515	return 0;
	516	}
	517
	518	long wxRegionIterator::GetY() const
	519	{
	520	if (m_current < m_numRects)
	521	return m_rects[m_current].y;
	522	return 0;
	523	}
	524
	525	long wxRegionIterator::GetW() const
	526	{
	527	if (m_current < m_numRects)
	528	return m_rects[m_current].width ;
	529	return 0;
	530	}
	531
	532	long wxRegionIterator::GetH() const
	533	{
	534	if (m_current < m_numRects)
	535	return m_rects[m_current].height;
	536	return 0;
	537	}
	538