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"

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

//-----------------------------------------------------------------------------
// 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(wxCoord x, wxCoord y, wxCoord w, wxCoord 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(wxCoord x, wxCoord y, wxCoord width, wxCoord 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(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &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
{
    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_REGION == 0)
        return TRUE;
    wxCoord 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(wxCoord x, wxCoord 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(wxCoord x, wxCoord y, wxCoord w, wxCoord 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;

    wxCoord 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;
}

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

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

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

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