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
/////////////////////////////////////////////////////////////////////////////

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