src/mac/carbon/region.cpp

/////////////////////////////////////////////////////////////////////////////
// File:      src/mac/carbon/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
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#include "wx/region.h"

#ifndef WX_PRECOMP
    #include "wx/gdicmn.h"
#endif

#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, NULL, NULL, 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 );
    }
}

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
{
    if ( m_refData )
        return EmptyRgn( M_REGION ) ;
    else
        return true ;
}

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?
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 && (numRects > 0))
    {
        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: src/mac/carbon/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	#include "wx/wxprec.h"
	12
	13	#include "wx/region.h"
	14
	15	#ifndef WX_PRECOMP
	16	#include "wx/gdicmn.h"
	17	#endif
	18
	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	{
	30	public:
	31	wxRegionRefData()
	32	{ m_macRgn = NewRgn(); }
	33
	34	wxRegionRefData(const wxRegionRefData& data)
	35	: wxGDIRefData()
	36	{
	37	m_macRgn = NewRgn();
	38	CopyRgn( data.m_macRgn , m_macRgn );
	39	}
	40
	41	~wxRegionRefData()
	42	{ DisposeRgn( m_macRgn ); }
	43
	44	RgnHandle m_macRgn;
	45	};
	46
	47	#define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
	48	#define OTHER_M_REGION(a) (((wxRegionRefData*)(a.m_refData))->m_macRgn)
	49
	50	//-----------------------------------------------------------------------------
	51	// wxRegion
	52	//-----------------------------------------------------------------------------
	53
	54	/*!
	55	* Create an empty region.
	56	*/
	57	wxRegion::wxRegion()
	58	{
	59	m_refData = new wxRegionRefData;
	60	}
	61
	62	wxRegion::wxRegion(WXHRGN hRegion )
	63	{
	64	m_refData = new wxRegionRefData;
	65	CopyRgn( (RgnHandle) hRegion , (RgnHandle) M_REGION ) ;
	66	}
	67
	68	wxRegion::wxRegion(long x, long y, long w, long h)
	69	{
	70	m_refData = new wxRegionRefData;
	71	SetRectRgn( (RgnHandle) M_REGION , x , y , x + w , y + h ) ;
	72	}
	73
	74	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
	75	{
	76	m_refData = new wxRegionRefData;
	77	SetRectRgn( (RgnHandle) M_REGION , topLeft.x , topLeft.y , bottomRight.x , bottomRight.y ) ;
	78	}
	79
	80	wxRegion::wxRegion(const wxRect& rect)
	81	{
	82	m_refData = new wxRegionRefData;
	83	SetRectRgn( (RgnHandle) M_REGION , rect.x , rect.y , rect.x + rect.width , rect.y + rect.height ) ;
	84	}
	85
	86	wxRegion::wxRegion(size_t n, const wxPoint *points, int WXUNUSED(fillStyle))
	87	{
	88	m_refData = new wxRegionRefData;
	89
	90	// OS X somehow does not collect the region invisibly as before, so sometimes things
	91	// get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now
	92
	93	GWorldPtr gWorld = NULL;
	94	GWorldPtr oldWorld;
	95	GDHandle oldGDHandle;
	96	OSStatus err;
	97	Rect destRect = { 0, 0, 1, 1 };
	98
	99	::GetGWorld( &oldWorld, &oldGDHandle );
	100	err = ::NewGWorld( &gWorld, 32, &destRect, NULL, NULL, 0 );
	101	if ( err == noErr )
	102	{
	103	::SetGWorld( gWorld, GetGDevice() );
	104
	105	OpenRgn();
	106
	107	wxCoord x1, x2 , y1 , y2 ;
	108	x2 = x1 = points[0].x ;
	109	y2 = y1 = points[0].y ;
	110
	111	::MoveTo( x1, y1 );
	112	for (size_t i = 1; i < n; i++)
	113	{
	114	x2 = points[i].x ;
	115	y2 = points[i].y ;
	116	::LineTo( x2, y2 );
	117	}
	118
	119	// close the polyline if necessary
	120	if ( x1 != x2 \|\| y1 != y2 )
	121	::LineTo( x1, y1 ) ;
	122
	123	CloseRgn( M_REGION ) ;
	124
	125	::SetGWorld( oldWorld, oldGDHandle );
	126	}
	127	}
	128
	129	wxRegion::~wxRegion()
	130	{
	131	// m_refData unrefed in ~wxObject
	132	}
	133
	134	//-----------------------------------------------------------------------------
	135	//# Modify region
	136	//-----------------------------------------------------------------------------
	137
	138	//! Clear current region
	139	void wxRegion::Clear()
	140	{
	141	UnRef();
	142	}
	143
	144	// Move the region
	145	bool wxRegion::Offset(wxCoord x, wxCoord y)
	146	{
	147	wxCHECK_MSG( M_REGION, false, _T("invalid wxRegion") );
	148
	149	if ( !x && !y )
	150	// nothing to do
	151	return true;
	152
	153	OffsetRgn( M_REGION , x , y ) ;
	154
	155	return true ;
	156	}
	157
	158
	159	//! Combine rectangle (x, y, w, h) with this.
	160	bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
	161	{
	162	// Don't change shared data
	163	if (!m_refData)
	164	{
	165	m_refData = new wxRegionRefData();
	166	}
	167	else if (m_refData->GetRefCount() > 1)
	168	{
	169	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	170	UnRef();
	171	m_refData = new wxRegionRefData( *ref );
	172	}
	173
	174	RgnHandle rgn = NewRgn() ;
	175	SetRectRgn( rgn , x , y, x + width, y + height ) ;
	176
	177	switch (op)
	178	{
	179	case wxRGN_AND:
	180	SectRgn( M_REGION , rgn , M_REGION ) ;
	181	break ;
	182
	183	case wxRGN_OR:
	184	UnionRgn( M_REGION , rgn , M_REGION ) ;
	185	break ;
	186
	187	case wxRGN_XOR:
	188	XorRgn( M_REGION , rgn , M_REGION ) ;
	189	break ;
	190
	191	case wxRGN_DIFF:
	192	DiffRgn( M_REGION , rgn , M_REGION ) ;
	193	break ;
	194
	195	case wxRGN_COPY:
	196	default:
	197	CopyRgn( rgn , M_REGION ) ;
	198	break ;
	199	}
	200
	201	DisposeRgn( rgn ) ;
	202
	203	return true;
	204	}
	205
	206	//! Union /e region with this.
	207	bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
	208	{
	209	if (region.Empty())
	210	return false;
	211
	212	// Don't change shared data
	213	if (!m_refData)
	214	{
	215	m_refData = new wxRegionRefData();
	216	}
	217	else if (m_refData->GetRefCount() > 1)
	218	{
	219	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	220	UnRef();
	221	m_refData = new wxRegionRefData(*ref);
	222	}
	223
	224	switch (op)
	225	{
	226	case wxRGN_AND:
	227	SectRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	228	break ;
	229
	230	case wxRGN_OR:
	231	UnionRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	232	break ;
	233
	234	case wxRGN_XOR:
	235	XorRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	236	break ;
	237
	238	case wxRGN_DIFF:
	239	DiffRgn( M_REGION , OTHER_M_REGION(region) , M_REGION ) ;
	240	break ;
	241
	242	case wxRGN_COPY:
	243	default:
	244	CopyRgn( OTHER_M_REGION(region) , M_REGION ) ;
	245	break ;
	246	}
	247
	248	return true;
	249	}
	250
	251	bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
	252	{
	253	return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
	254	}
	255
	256	//-----------------------------------------------------------------------------
	257	//# Information on region
	258	//-----------------------------------------------------------------------------
	259
	260	// Outer bounds of region
	261	void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
	262	{
	263	if (m_refData)
	264	{
	265	Rect box ;
	266	GetRegionBounds( M_REGION , &box ) ;
	267	x = box.left ;
	268	y = box.top ;
	269	w = box.right - box.left ;
	270	h = box.bottom - box.top ;
	271	}
	272	else
	273	{
	274	x = y = w = h = 0;
	275	}
	276	}
	277
	278	wxRect wxRegion::GetBox() const
	279	{
	280	wxCoord x, y, w, h;
	281	GetBox(x, y, w, h);
	282
	283	return wxRect(x, y, w, h);
	284	}
	285
	286	// Is region empty?
	287	bool wxRegion::Empty() const
	288	{
	289	if ( m_refData )
	290	return EmptyRgn( M_REGION ) ;
	291	else
	292	return true ;
	293	}
	294
	295	const WXHRGN wxRegion::GetWXHRGN() const
	296	{
	297	return M_REGION ;
	298	}
	299
	300	//-----------------------------------------------------------------------------
	301	//# Tests
	302	//-----------------------------------------------------------------------------
	303
	304	// Does the region contain the point (x,y)?
	305	wxRegionContain wxRegion::Contains(long x, long y) const
	306	{
	307	if (!m_refData)
	308	return wxOutRegion;
	309
	310	// TODO. Return wxInRegion if within region.
	311	// if (0)
	312	// return wxInRegion;
	313
	314	return wxOutRegion;
	315	}
	316
	317	// Does the region contain the point?
	318	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
	319	{
	320	if (!m_refData)
	321	return wxOutRegion;
	322
	323	Point p = { pt.y , pt.x } ;
	324	if (PtInRgn( p , M_REGION ) )
	325	return wxInRegion;
	326
	327	return wxOutRegion;
	328	}
	329
	330	// Does the region contain the rectangle (x, y, w, h)?
	331	wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
	332	{
	333	if (!m_refData)
	334	return wxOutRegion;
	335
	336	Rect rect = { y , x , y + h , x + w } ;
	337	if (RectInRgn( &rect , M_REGION ) )
	338	return wxInRegion;
	339	else
	340	return wxOutRegion;
	341	}
	342
	343	// Does the region contain the rectangle rect
	344	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	345	{
	346	if (!m_refData)
	347	return wxOutRegion;
	348
	349	long x, y, w, h;
	350
	351	x = rect.x;
	352	y = rect.y;
	353	w = rect.GetWidth();
	354	h = rect.GetHeight();
	355
	356	return Contains(x, y, w, h);
	357	}
	358
	359	///////////////////////////////////////////////////////////////////////////////
	360	// //
	361	// wxRegionIterator //
	362	// //
	363	///////////////////////////////////////////////////////////////////////////////
	364
	365	/*!
	366	* Initialize empty iterator
	367	*/
	368	wxRegionIterator::wxRegionIterator()
	369	: m_current(0), m_numRects(0), m_rects(NULL)
	370	{
	371	}
	372
	373	wxRegionIterator::~wxRegionIterator()
	374	{
	375	if (m_rects)
	376	{
	377	delete [] m_rects;
	378	m_rects = NULL;
	379	}
	380	}
	381
	382	wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
	383	: wxObject()
	384	, m_current(iterator.m_current)
	385	, m_numRects(0)
	386	, m_rects(NULL)
	387	{
	388	SetRects(iterator.m_numRects, iterator.m_rects);
	389	}
	390
	391	wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
	392	{
	393	m_current = iterator.m_current;
	394	SetRects(iterator.m_numRects, iterator.m_rects);
	395
	396	return *this;
	397	}
	398
	399	/*!
	400	* Set iterator rects for region
	401	*/
	402	void wxRegionIterator::SetRects(long numRects, wxRect *rects)
	403	{
	404	if (m_rects)
	405	{
	406	delete [] m_rects;
	407	m_rects = NULL;
	408	}
	409
	410	if (rects && (numRects > 0))
	411	{
	412	int i;
	413
	414	m_rects = new wxRect[numRects];
	415	for (i = 0; i < numRects; i++)
	416	m_rects[i] = rects[i];
	417	}
	418
	419	m_numRects = numRects;
	420	}
	421
	422	/*!
	423	* Initialize iterator for region
	424	*/
	425	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	426	{
	427	m_rects = NULL;
	428
	429	Reset(region);
	430	}
	431
	432	/*!
	433	* Reset iterator for a new /e region.
	434	*/
	435
	436	OSStatus wxMacRegionToRectsCounterCallback(
	437	UInt16 message, RgnHandle region, const Rect rect, void data )
	438	{
	439	long m_numRects = (long) data ;
	440	if ( message == kQDRegionToRectsMsgInit )
	441	{
	442	(*m_numRects) = 0 ;
	443	}
	444	else if (message == kQDRegionToRectsMsgParse)
	445	{
	446	(*m_numRects) += 1 ;
	447	}
	448
	449	return noErr;
	450	}
	451
	452	class RegionToRectsCallbackData
	453	{
	454	public :
	455	wxRect* m_rects ;
	456	long m_current ;
	457	};
	458
	459	OSStatus wxMacRegionToRectsSetterCallback(
	460	UInt16 message, RgnHandle region, const Rect rect, void data )
	461	{
	462	if (message == kQDRegionToRectsMsgParse)
	463	{
	464	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	465	cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
	466	}
	467
	468	return noErr;
	469	}
	470
	471	void wxRegionIterator::Reset(const wxRegion& region)
	472	{
	473	m_current = 0;
	474	m_region = region;
	475
	476	if (m_rects)
	477	{
	478	delete [] m_rects;
	479	m_rects = NULL;
	480	}
	481
	482	if (m_region.Empty())
	483	{
	484	m_numRects = 0;
	485	}
	486	else
	487	{
	488	RegionToRectsUPP proc = NewRegionToRectsUPP( wxMacRegionToRectsCounterCallback );
	489
	490	OSStatus err = noErr;
	491	err = QDRegionToRects (OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&m_numRects);
	492	if (err == noErr)
	493	{
	494	DisposeRegionToRectsUPP (proc);
	495	proc = NewRegionToRectsUPP (wxMacRegionToRectsSetterCallback);
	496	m_rects = new wxRect[m_numRects];
	497	RegionToRectsCallbackData data ;
	498	data.m_rects = m_rects ;
	499	data.m_current = 0 ;
	500	QDRegionToRects( OTHER_M_REGION( region ) , kQDParseRegionFromTopLeft, proc, (void*)&data );
	501	}
	502	else
	503	{
	504	m_numRects = 0;
	505	}
	506
	507	DisposeRegionToRectsUPP( proc );
	508	}
	509	}
	510
	511	/*!
	512	* Increment iterator. The rectangle returned is the one after the
	513	* incrementation.
	514	*/
	515	wxRegionIterator& wxRegionIterator::operator ++ ()
	516	{
	517	if (m_current < m_numRects)
	518	++m_current;
	519
	520	return *this;
	521	}
	522
	523	/*!
	524	* Increment iterator. The rectangle returned is the one before the
	525	* incrementation.
	526	*/
	527	wxRegionIterator wxRegionIterator::operator ++ (int)
	528	{
	529	wxRegionIterator previous(*this);
	530
	531	if (m_current < m_numRects)
	532	++m_current;
	533
	534	return previous;
	535	}
	536
	537	long wxRegionIterator::GetX() const
	538	{
	539	if (m_current < m_numRects)
	540	return m_rects[m_current].x;
	541
	542	return 0;
	543	}
	544
	545	long wxRegionIterator::GetY() const
	546	{
	547	if (m_current < m_numRects)
	548	return m_rects[m_current].y;
	549
	550	return 0;
	551	}
	552
	553	long wxRegionIterator::GetW() const
	554	{
	555	if (m_current < m_numRects)
	556	return m_rects[m_current].width ;
	557
	558	return 0;
	559	}
	560
	561	long wxRegionIterator::GetH() const
	562	{
	563	if (m_current < m_numRects)
	564	return m_rects[m_current].height;
	565
	566	return 0;
	567	}