src/msw/region.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:      msw/region.cpp
// Purpose:   Region handling for wxWindows/X11
// Author:    Markus Holzem
// Modified by:
// Created:   Fri Oct 24 10:46:34 MET 1997
// RCS-ID:    $Id$
// Copyright: (c) 1997 Julian Smart and Markus Holzem
// Licence:   wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "region.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#include "wx/msw/region.h"
#include "wx/gdicmn.h"

#include "wx/window.h"
#include "wx/msw/private.h"

#if !USE_SHARED_LIBRARY
    IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
    IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
#endif

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

class WXDLLEXPORT wxRegionRefData : public wxGDIRefData
{
public:
    wxRegionRefData()
    {
        m_region = 0;
    }

    wxRegionRefData(const wxRegionRefData& data)
    {
#if defined(__WIN32__)
        DWORD noBytes = ::GetRegionData(data.m_region, 0, NULL);
        RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
        ::GetRegionData(data.m_region, noBytes, rgnData);
        m_region = ::ExtCreateRegion(NULL, noBytes, rgnData);
        delete[] (char*) rgnData;
#else
        RECT rect;
        ::GetRgnBox(data.m_region, &rect);
        m_region = ::CreateRectRgnIndirect(&rect);
#endif
    }

    ~wxRegionRefData()
    {
        ::DeleteObject(m_region);
        m_region = 0;
    }

    HRGN m_region;
};

#define M_REGION (((wxRegionRefData*)m_refData)->m_region)

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

/*
 * Create an empty region.
 */
wxRegion::wxRegion()
{
    m_refData = new wxRegionRefData;
    M_REGION = ::CreateRectRgn(0, 0, 0, 0);
}

wxRegion::wxRegion(WXHRGN hRegion)
{
    m_refData = new wxRegionRefData;
    M_REGION = (HRGN) hRegion;
}

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

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

wxRegion::wxRegion(const wxRect& rect)
{
    m_refData = new wxRegionRefData;
    M_REGION = ::CreateRectRgn(rect.GetLeft(), rect.GetTop(), rect.GetRight(), rect.GetBottom());
}

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

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

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

// 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);
    }
    // If ref count is 1, that means it's 'ours' anyway so no action.

    HRGN rectRegion = ::CreateRectRgn(x, y, x + width, y + height);

    int mode = 0;
    switch (op)
    {
        case wxRGN_AND: mode = RGN_AND; break ;
        case wxRGN_OR: mode = RGN_OR; break ;
        case wxRGN_XOR: mode = RGN_XOR; break ;
        case wxRGN_DIFF: mode = RGN_DIFF; break ;
        case wxRGN_COPY:
        default:
            mode = RGN_COPY; break ;
    }

    bool success = (ERROR != ::CombineRgn(M_REGION, M_REGION, rectRegion, mode));

    ::DeleteObject(rectRegion);

    return success;
}

// 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);
    }

    int mode = 0;
    switch (op)
    {
        case wxRGN_AND: mode = RGN_AND; break ;
        case wxRGN_OR: mode = RGN_OR; break ;
        case wxRGN_XOR: mode = RGN_XOR; break ;
        case wxRGN_DIFF: mode = RGN_DIFF; break ;
        case wxRGN_COPY:
        default:
            mode = RGN_COPY; break ;
    }

    return (ERROR != ::CombineRgn(M_REGION, M_REGION, ((wxRegionRefData*)region.m_refData)->m_region, mode));
}

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(long& x, long& y, long&w, long &h) const
{
    if (m_refData) {
        RECT rect;
        ::GetRgnBox(M_REGION, & rect);
        x = rect.left;
        y = rect.top;
        w = rect.right - rect.left;
        h = rect.bottom - rect.top;
    } else {
        x = y = w = h = 0;
    }
}

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

// Is region empty?
bool wxRegion::Empty() const
{
    if (M_REGION == 0)
        return TRUE;
    long x, y, w, h;
    GetBox(x, y, w, h);

    return ((w == 0) && (h == 0));
}

//-----------------------------------------------------------------------------
// Tests
//-----------------------------------------------------------------------------

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

    if (::PtInRegion(M_REGION, (int) x, (int) y))
        return wxInRegion;
    else
        return wxOutRegion;
}

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

    if (::PtInRegion(M_REGION, (int) pt.x, (int) pt.y))
        return wxInRegion;
    else
        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;
    rect.left = x;
    rect.top = y;
    rect.right = x + w;
    rect.bottom = y + h;

    if (::RectInRegion(M_REGION, & rect))
        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);
}

// Get internal region handle
WXHRGN wxRegion::GetHRGN() const
{
    if (!m_refData)
        return (WXHRGN) 0;
    return (WXHRGN) M_REGION;
}

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

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

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

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

    Reset(region);
}

/*
 * Reset iterator for a new /e region.
 */
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
    {
#if defined(__WIN32__)
        DWORD noBytes = ::GetRegionData(((wxRegionRefData*)region.m_refData)->m_region, 0, NULL);
        RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
        ::GetRegionData(((wxRegionRefData*)region.m_refData)->m_region, noBytes, rgnData);

        RGNDATAHEADER* header = (RGNDATAHEADER*) rgnData;

        m_rects = new wxRect[header->nCount];

        RECT* rect = (RECT*) ((char*)rgnData + sizeof(RGNDATAHEADER)) ;
        size_t i;
        for (i = 0; i < header->nCount; i++)
        {
            m_rects[i] = wxRect(rect->left, rect->top,
                                 rect->right - rect->left, rect->bottom - rect->top);
            rect ++; // Advances pointer by sizeof(RECT)
        }

        m_numRects = header->nCount;

        delete[] (char*) rgnData;
#else
        RECT rect;
        ::GetRgnBox(((wxRegionRefData*)region.m_refData)->m_region, &rect);
        m_rects = new wxRect[1];
        m_rects[0].x = rect.left;
        m_rects[0].y = rect.top;
        m_rects[0].width = rect.right - rect.left;
        m_rects[0].height = rect.bottom - rect.top;

        m_numRects = 1;
#endif
    }
}

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

/*
 * Increment iterator. The rectangle returned is the one before the
 * incrementation.
 */
void wxRegionIterator::operator ++ (int)
{
    if (m_current < m_numRects)
        ++m_current;
}

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	// Name: msw/region.cpp
	3	// Purpose: Region handling for wxWindows/X11
	4	// Author: Markus Holzem
	5	// Modified by:
	6	// Created: Fri Oct 24 10:46:34 MET 1997
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1997 Julian Smart and Markus Holzem
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifdef __GNUG__
	13	#pragma implementation "region.h"
	14	#endif
	15
	16	// For compilers that support precompilation, includes "wx.h".
	17	#include "wx/wxprec.h"
	18
	19	#ifdef __BORLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#include "wx/msw/region.h"
	24	#include "wx/gdicmn.h"
	25
	26	#include "wx/window.h"
	27	#include "wx/msw/private.h"
	28
	29	#if !USE_SHARED_LIBRARY
	30	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
	31	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
	32	#endif
	33
	34	//-----------------------------------------------------------------------------
	35	// wxRegionRefData implementation
	36	//-----------------------------------------------------------------------------
	37
	38	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData
	39	{
	40	public:
	41	wxRegionRefData()
	42	{
	43	m_region = 0;
	44	}
	45
	46	wxRegionRefData(const wxRegionRefData& data)
	47	{
	48	#if defined(__WIN32__)
	49	DWORD noBytes = ::GetRegionData(data.m_region, 0, NULL);
	50	RGNDATA rgnData = (RGNDATA) new char[noBytes];
	51	::GetRegionData(data.m_region, noBytes, rgnData);
	52	m_region = ::ExtCreateRegion(NULL, noBytes, rgnData);
	53	delete[] (char*) rgnData;
	54	#else
	55	RECT rect;
	56	::GetRgnBox(data.m_region, &rect);
	57	m_region = ::CreateRectRgnIndirect(&rect);
	58	#endif
	59	}
	60
	61	~wxRegionRefData()
	62	{
	63	::DeleteObject(m_region);
	64	m_region = 0;
	65	}
	66
	67	HRGN m_region;
	68	};
	69
	70	#define M_REGION (((wxRegionRefData*)m_refData)->m_region)
	71
	72	//-----------------------------------------------------------------------------
	73	// wxRegion
	74	//-----------------------------------------------------------------------------
	75
	76	/*
	77	* Create an empty region.
	78	*/
	79	wxRegion::wxRegion()
	80	{
	81	m_refData = new wxRegionRefData;
	82	M_REGION = ::CreateRectRgn(0, 0, 0, 0);
	83	}
	84
	85	wxRegion::wxRegion(WXHRGN hRegion)
	86	{
	87	m_refData = new wxRegionRefData;
	88	M_REGION = (HRGN) hRegion;
	89	}
	90
	91	wxRegion::wxRegion(long x, long y, long w, long h)
	92	{
	93	m_refData = new wxRegionRefData;
	94	M_REGION = ::CreateRectRgn(x, y, x + w, y + h);
	95	}
	96
	97	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
	98	{
	99	m_refData = new wxRegionRefData;
	100	M_REGION = ::CreateRectRgn(topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);
	101	}
	102
	103	wxRegion::wxRegion(const wxRect& rect)
	104	{
	105	m_refData = new wxRegionRefData;
	106	M_REGION = ::CreateRectRgn(rect.GetLeft(), rect.GetTop(), rect.GetRight(), rect.GetBottom());
	107	}
	108
	109	/*
	110	* Destroy the region.
	111	*/
	112	wxRegion::~wxRegion()
	113	{
	114	// m_refData unrefed in ~wxObject
	115	}
	116
	117	//-----------------------------------------------------------------------------
	118	// Modify region
	119	//-----------------------------------------------------------------------------
	120
	121	// Clear current region
	122	void wxRegion::Clear()
	123	{
	124	UnRef();
	125	}
	126
	127	// Combine rectangle (x, y, w, h) with this.
	128	bool wxRegion::Combine(long x, long y, long width, long height, wxRegionOp op)
	129	{
	130	// Don't change shared data
	131	if (!m_refData) {
	132	m_refData = new wxRegionRefData();
	133	} else if (m_refData->GetRefCount() > 1) {
	134	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	135	UnRef();
	136	m_refData = new wxRegionRefData(*ref);
	137	}
	138	// If ref count is 1, that means it's 'ours' anyway so no action.
	139
	140	HRGN rectRegion = ::CreateRectRgn(x, y, x + width, y + height);
	141
	142	int mode = 0;
	143	switch (op)
	144	{
	145	case wxRGN_AND: mode = RGN_AND; break ;
	146	case wxRGN_OR: mode = RGN_OR; break ;
	147	case wxRGN_XOR: mode = RGN_XOR; break ;
	148	case wxRGN_DIFF: mode = RGN_DIFF; break ;
	149	case wxRGN_COPY:
	150	default:
	151	mode = RGN_COPY; break ;
	152	}
	153
	154	bool success = (ERROR != ::CombineRgn(M_REGION, M_REGION, rectRegion, mode));
	155
	156	::DeleteObject(rectRegion);
	157
	158	return success;
	159	}
	160
	161	// Union /e region with this.
	162	bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
	163	{
	164	if (region.Empty())
	165	return FALSE;
	166
	167	// Don't change shared data
	168	if (!m_refData) {
	169	m_refData = new wxRegionRefData();
	170	} else if (m_refData->GetRefCount() > 1) {
	171	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	172	UnRef();
	173	m_refData = new wxRegionRefData(*ref);
	174	}
	175
	176	int mode = 0;
	177	switch (op)
	178	{
	179	case wxRGN_AND: mode = RGN_AND; break ;
	180	case wxRGN_OR: mode = RGN_OR; break ;
	181	case wxRGN_XOR: mode = RGN_XOR; break ;
	182	case wxRGN_DIFF: mode = RGN_DIFF; break ;
	183	case wxRGN_COPY:
	184	default:
	185	mode = RGN_COPY; break ;
	186	}
	187
	188	return (ERROR != ::CombineRgn(M_REGION, M_REGION, ((wxRegionRefData*)region.m_refData)->m_region, mode));
	189	}
	190
	191	bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
	192	{
	193	return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
	194	}
	195
	196	//-----------------------------------------------------------------------------
	197	// Information on region
	198	//-----------------------------------------------------------------------------
	199
	200	// Outer bounds of region
	201	void wxRegion::GetBox(long& x, long& y, long&w, long &h) const
	202	{
	203	if (m_refData) {
	204	RECT rect;
	205	::GetRgnBox(M_REGION, & rect);
	206	x = rect.left;
	207	y = rect.top;
	208	w = rect.right - rect.left;
	209	h = rect.bottom - rect.top;
	210	} else {
	211	x = y = w = h = 0;
	212	}
	213	}
	214
	215	wxRect wxRegion::GetBox() const
	216	{
	217	long x, y, w, h;
	218	GetBox(x, y, w, h);
	219	return wxRect(x, y, w, h);
	220	}
	221
	222	// Is region empty?
	223	bool wxRegion::Empty() const
	224	{
	225	if (M_REGION == 0)
	226	return TRUE;
	227	long x, y, w, h;
	228	GetBox(x, y, w, h);
	229
	230	return ((w == 0) && (h == 0));
	231	}
	232
	233	//-----------------------------------------------------------------------------
	234	// Tests
	235	//-----------------------------------------------------------------------------
	236
	237	// Does the region contain the point (x,y)?
	238	wxRegionContain wxRegion::Contains(long x, long y) const
	239	{
	240	if (!m_refData)
	241	return wxOutRegion;
	242
	243	if (::PtInRegion(M_REGION, (int) x, (int) y))
	244	return wxInRegion;
	245	else
	246	return wxOutRegion;
	247	}
	248
	249	// Does the region contain the point pt?
	250	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
	251	{
	252	if (!m_refData)
	253	return wxOutRegion;
	254
	255	if (::PtInRegion(M_REGION, (int) pt.x, (int) pt.y))
	256	return wxInRegion;
	257	else
	258	return wxOutRegion;
	259	}
	260
	261	// Does the region contain the rectangle (x, y, w, h)?
	262	wxRegionContain wxRegion::Contains(long x, long y, long w, long h) const
	263	{
	264	if (!m_refData)
	265	return wxOutRegion;
	266
	267	RECT rect;
	268	rect.left = x;
	269	rect.top = y;
	270	rect.right = x + w;
	271	rect.bottom = y + h;
	272
	273	if (::RectInRegion(M_REGION, & rect))
	274	return wxInRegion;
	275	else
	276	return wxOutRegion;
	277	}
	278
	279	// Does the region contain the rectangle rect
	280	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	281	{
	282	if (!m_refData)
	283	return wxOutRegion;
	284
	285	long x, y, w, h;
	286	x = rect.x;
	287	y = rect.y;
	288	w = rect.GetWidth();
	289	h = rect.GetHeight();
	290	return Contains(x, y, w, h);
	291	}
	292
	293	// Get internal region handle
	294	WXHRGN wxRegion::GetHRGN() const
	295	{
	296	if (!m_refData)
	297	return (WXHRGN) 0;
	298	return (WXHRGN) M_REGION;
	299	}
	300
	301	///////////////////////////////////////////////////////////////////////////////
	302	// //
	303	// wxRegionIterator //
	304	// //
	305	///////////////////////////////////////////////////////////////////////////////
	306
	307	/*
	308	* Initialize empty iterator
	309	*/
	310	wxRegionIterator::wxRegionIterator() : m_current(0), m_numRects(0), m_rects(NULL)
	311	{
	312	}
	313
	314	wxRegionIterator::~wxRegionIterator()
	315	{
	316	if (m_rects)
	317	delete[] m_rects;
	318	}
	319
	320	/*
	321	* Initialize iterator for region
	322	*/
	323	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	324	{
	325	m_rects = NULL;
	326
	327	Reset(region);
	328	}
	329
	330	/*
	331	* Reset iterator for a new /e region.
	332	*/
	333	void wxRegionIterator::Reset(const wxRegion& region)
	334	{
	335	m_current = 0;
	336	m_region = region;
	337
	338	if (m_rects)
	339	delete[] m_rects;
	340
	341	m_rects = NULL;
	342
	343	if (m_region.Empty())
	344	m_numRects = 0;
	345	else
	346	{
	347	#if defined(__WIN32__)
	348	DWORD noBytes = ::GetRegionData(((wxRegionRefData*)region.m_refData)->m_region, 0, NULL);
	349	RGNDATA rgnData = (RGNDATA) new char[noBytes];
	350	::GetRegionData(((wxRegionRefData*)region.m_refData)->m_region, noBytes, rgnData);
	351
	352	RGNDATAHEADER* header = (RGNDATAHEADER*) rgnData;
	353
	354	m_rects = new wxRect[header->nCount];
	355
	356	RECT* rect = (RECT) ((char)rgnData + sizeof(RGNDATAHEADER)) ;
	357	size_t i;
	358	for (i = 0; i < header->nCount; i++)
	359	{
	360	m_rects[i] = wxRect(rect->left, rect->top,
	361	rect->right - rect->left, rect->bottom - rect->top);
	362	rect ++; // Advances pointer by sizeof(RECT)
	363	}
	364
	365	m_numRects = header->nCount;
	366
	367	delete[] (char*) rgnData;
	368	#else
	369	RECT rect;
	370	::GetRgnBox(((wxRegionRefData*)region.m_refData)->m_region, &rect);
	371	m_rects = new wxRect[1];
	372	m_rects[0].x = rect.left;
	373	m_rects[0].y = rect.top;
	374	m_rects[0].width = rect.right - rect.left;
	375	m_rects[0].height = rect.bottom - rect.top;
	376
	377	m_numRects = 1;
	378	#endif
	379	}
	380	}
	381
	382	/*
	383	* Increment iterator. The rectangle returned is the one after the
	384	* incrementation.
	385	*/
	386	void wxRegionIterator::operator ++ ()
	387	{
	388	if (m_current < m_numRects)
	389	++m_current;
	390	}
	391
	392	/*
	393	* Increment iterator. The rectangle returned is the one before the
	394	* incrementation.
	395	*/
	396	void wxRegionIterator::operator ++ (int)
	397	{
	398	if (m_current < m_numRects)
	399	++m_current;
	400	}
	401
	402	long wxRegionIterator::GetX() const
	403	{
	404	if (m_current < m_numRects)
	405	return m_rects[m_current].x;
	406	return 0;
	407	}
	408
	409	long wxRegionIterator::GetY() const
	410	{
	411	if (m_current < m_numRects)
	412	return m_rects[m_current].y;
	413	return 0;
	414	}
	415
	416	long wxRegionIterator::GetW() const
	417	{
	418	if (m_current < m_numRects)
	419	return m_rects[m_current].width ;
	420	return 0;
	421	}
	422
	423	long wxRegionIterator::GetH() const
	424	{
	425	if (m_current < m_numRects)
	426	return m_rects[m_current].height;
	427	return 0;
	428	}
	429