src/motif/region.cpp

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

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

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

#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include <Xm/Xm.h>
#ifdef __VMS__
#pragma message enable nosimpint
#endif
// #include "wx/motif/private.h"

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

// ----------------------------------------------------------------------------
// list types
// ----------------------------------------------------------------------------

#include "wx/listimpl.cpp"

WX_DEFINE_LIST(wxRectList);

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

class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
public:
    wxRegionRefData()
    {
        m_region = XCreateRegion();
        m_usingRects = FALSE;
        m_rects = (wxRect*) NULL;
        m_rectCount = 0;
    }

    wxRegionRefData(const wxRegionRefData& data)
    {
        m_region = XCreateRegion();
        m_rects = (wxRect*) NULL;
        m_rectCount = 0;
        XUnionRegion(m_region, data.m_region, m_region);

        SetRects(data.m_rectCount, data.m_rects);
    }

    ~wxRegionRefData()
    {
        XDestroyRegion(m_region);
        DeleteRects();
    }

    wxRect* GetRects() { return m_rects; };
    void SetRects(const wxRectList& rectList);
    void SetRects(int count, const wxRect* rects);
    bool UsingRects() const { return m_usingRects; }
    int GetRectCount() const { return m_rectCount; }

    void DeleteRects();

    Region      m_region;
    wxRect*     m_rects;
    int         m_rectCount;
    bool        m_usingRects;  // TRUE if we're using the above.
};

void wxRegionRefData::SetRects(const wxRectList& rectList)
{
    DeleteRects();
    m_usingRects = (rectList.GetCount() > 0);
    if (m_usingRects)
    {
      m_rectCount = rectList.GetCount();
      m_rects = new wxRect[m_rectCount];
    }

    wxRectList::Node* node = rectList.GetFirst();
    int i = 0;
    while (node) {
        wxRect* rect = node->GetData();
        m_rects[i] = * rect;
        node = node->GetNext();
        i ++;
    }
}

void wxRegionRefData::SetRects(int count, const wxRect* rects)
{
    DeleteRects();
    m_usingRects = (count > 0);
    if (m_usingRects)
    {
      m_rectCount = count;
      m_rects = new wxRect[m_rectCount];
      int i;
      for (i = 0; i < m_rectCount; i++)
        m_rects[i] = rects[i];
    }
}

void wxRegionRefData::DeleteRects()
{
   if (m_rects)
   {
      delete[] m_rects;
      m_rects = (wxRect*) NULL;
   }
   m_rectCount = 0;
   m_usingRects = FALSE;
 }

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

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

/*!
 * Create an empty region.
 */
wxRegion::wxRegion()
{
}

wxRegion::wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
    m_refData = new wxRegionRefData;

    XRectangle rect;
    rect.x        = x;
    rect.y        = y;
    rect.width    = w;
    rect.height = h;
    XUnionRectWithRegion(&rect, M_REGION, M_REGION);
}

wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
{
    m_refData = new wxRegionRefData;

    XRectangle rect;
    rect.x        = topLeft.x;
    rect.y        = topLeft.y;
    rect.width    = bottomRight.x - topLeft.x;
    rect.height = bottomRight.y - topLeft.y;
    XUnionRectWithRegion(&rect, M_REGION, M_REGION);
}

wxRegion::wxRegion(const wxRect& rect)
{
    m_refData = new wxRegionRefData;

    XRectangle rect1;
    rect1.x        = rect.x;
    rect1.y        = rect.y;
    rect1.width    = rect.width;
    rect1.height = rect.height;
    XUnionRectWithRegion(&rect1, M_REGION, M_REGION);
}

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

// Get the internal region handle
WXRegion wxRegion::GetXRegion() const
{
    wxASSERT( m_refData !=NULL );

    return (WXRegion) ((wxRegionRefData*)m_refData)->m_region;
}

//-----------------------------------------------------------------------------
//# 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)
{
    // work around for XUnionRectWithRegion() bug: taking a union with an empty
    // rect results in an empty region (at least XFree 3.3.6 and 4.0 have this
    // problem)
    if ( op == wxRGN_OR && (!width || !height) )
        return TRUE;

    // 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.

    Region rectRegion = XCreateRegion();

    XRectangle rect;
    rect.x        = x;
    rect.y        = y;
    rect.width    = width;
    rect.height = height;
    XUnionRectWithRegion(&rect, rectRegion, rectRegion);

    switch (op)
    {
        case wxRGN_AND:
            XIntersectRegion(M_REGION, rectRegion, M_REGION);
            break ;
        case wxRGN_OR:
            XUnionRegion(M_REGION, rectRegion, M_REGION);
            break ;
        case wxRGN_XOR:
            // TODO
            break ;
        case wxRGN_DIFF:
            // TODO
            break ;
        case wxRGN_COPY: // Don't have to do this one
        default:
            // TODO
            break ;
    }

    return FALSE;
}

//! 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:
            XIntersectRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
                 M_REGION);
            break ;
        case wxRGN_OR:
            XUnionRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
                 M_REGION);
            break ;
        case wxRGN_XOR:
            // TODO
            break ;
        case wxRGN_DIFF:
            // TODO
            break ;
        case wxRGN_COPY: // Don't have to do this one
        default:
            // TODO
            break ;
    }

  return FALSE;
}

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) {
        XRectangle rect;
        XClipBox(M_REGION, &rect);
        x = rect.x;
        y = rect.y;
        w = rect.width;
        h = rect.height;
    } 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 m_refData ? XEmptyRegion(M_REGION) : TRUE;
}

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

// Does the region contain the point (x,y)?
wxRegionContain wxRegion::Contains(wxCoord WXUNUSED(x), wxCoord WXUNUSED(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;

    return XPointInRegion(M_REGION, pt.x, pt.y) ? wxInRegion : 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;

    switch (XRectInRegion(M_REGION, x, y, w, h)) {
        case RectangleIn:    return wxInRegion;
        case RectanglePart: return wxPartRegion;
    }
    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);
}

bool wxRegion::UsingRects() const
{
    return ((wxRegionRefData*)m_refData)->UsingRects();
}

/*
wxRectList& wxRegion::GetRectList()
{
    return ((wxRegionRefData*)m_refData)->GetRectList();
}
*/

wxRect* wxRegion::GetRects()
{
    return ((wxRegionRefData*)m_refData)->GetRects();
}

int wxRegion::GetRectCount() const
{
    return ((wxRegionRefData*)m_refData)->GetRectCount();
}

void wxRegion::SetRects(const wxRectList& rectList)
{
    ((wxRegionRefData*)m_refData)->SetRects(rectList);
}

void wxRegion::SetRects(int count, const wxRect* rects)
{
    ((wxRegionRefData*)m_refData)->SetRects(count, rects);
}

///////////////////////////////////////////////////////////////////////////////
//                                                                             //
//                               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
    {
        // Create m_rects and fill with rectangles for this region.
        // Since we can't find the rectangles in a region, we cheat
        // by retrieving the rectangles explicitly set in wxPaintDC::wxPaintDC
        // (dcclient.cpp).
        if (m_region.UsingRects())
        {
            wxRect* rects = m_region.GetRects();
            int count = m_region.GetRectCount();
            m_numRects = count;
            m_rects = new wxRect[m_numRects];

            for (size_t i = 0; i < m_numRects; i++)
               m_rects[i] = rects[i];

	    /*
            int i = 0;
            wxRectList::Node* node = rectList.GetFirst();
            while (node) {
                wxRect* rect = node->GetData();
                m_rects[i] = * rect;
                node = node->GetNext();
                i ++;
            }
	    */
        }
        else
        {
            // For now, fudge by getting the whole bounding box.
            m_rects = new wxRect[1];
            m_numRects = 1;
            m_rects[0] = m_region.GetBox();
        }
    }
}

/*!
 * 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	// File: region.cpp
	3	// Purpose: Region class
	4	// Author: Julian Smart
	5	// Created: Fri Oct 24 10:46:34 MET 1997
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 1997 Julian Smart
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#ifdef __GNUG__
	12	#pragma implementation "region.h"
	13	#endif
	14
	15	#include "wx/region.h"
	16	#include "wx/gdicmn.h"
	17
	18	#ifdef __VMS__
	19	#pragma message disable nosimpint
	20	#endif
	21	#include <Xm/Xm.h>
	22	#ifdef __VMS__
	23	#pragma message enable nosimpint
	24	#endif
	25	// #include "wx/motif/private.h"
	26
	27	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
	28	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
	29
	30	// ----------------------------------------------------------------------------
	31	// list types
	32	// ----------------------------------------------------------------------------
	33
	34	#include "wx/listimpl.cpp"
	35
	36	WX_DEFINE_LIST(wxRectList);
	37
	38	//-----------------------------------------------------------------------------
	39	// wxRegionRefData implementation
	40	//-----------------------------------------------------------------------------
	41
	42	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData {
	43	public:
	44	wxRegionRefData()
	45	{
	46	m_region = XCreateRegion();
	47	m_usingRects = FALSE;
	48	m_rects = (wxRect*) NULL;
	49	m_rectCount = 0;
	50	}
	51
	52	wxRegionRefData(const wxRegionRefData& data)
	53	{
	54	m_region = XCreateRegion();
	55	m_rects = (wxRect*) NULL;
	56	m_rectCount = 0;
	57	XUnionRegion(m_region, data.m_region, m_region);
	58
	59	SetRects(data.m_rectCount, data.m_rects);
	60	}
	61
	62	~wxRegionRefData()
	63	{
	64	XDestroyRegion(m_region);
	65	DeleteRects();
	66	}
	67
	68	wxRect* GetRects() { return m_rects; };
	69	void SetRects(const wxRectList& rectList);
	70	void SetRects(int count, const wxRect* rects);
	71	bool UsingRects() const { return m_usingRects; }
	72	int GetRectCount() const { return m_rectCount; }
	73
	74	void DeleteRects();
	75
	76	Region m_region;
	77	wxRect* m_rects;
	78	int m_rectCount;
	79	bool m_usingRects; // TRUE if we're using the above.
	80	};
	81
	82	void wxRegionRefData::SetRects(const wxRectList& rectList)
	83	{
	84	DeleteRects();
	85	m_usingRects = (rectList.GetCount() > 0);
	86	if (m_usingRects)
	87	{
	88	m_rectCount = rectList.GetCount();
	89	m_rects = new wxRect[m_rectCount];
	90	}
	91
	92	wxRectList::Node* node = rectList.GetFirst();
	93	int i = 0;
	94	while (node) {
	95	wxRect* rect = node->GetData();
	96	m_rects[i] = * rect;
	97	node = node->GetNext();
	98	i ++;
	99	}
	100	}
	101
	102	void wxRegionRefData::SetRects(int count, const wxRect* rects)
	103	{
	104	DeleteRects();
	105	m_usingRects = (count > 0);
	106	if (m_usingRects)
	107	{
	108	m_rectCount = count;
	109	m_rects = new wxRect[m_rectCount];
	110	int i;
	111	for (i = 0; i < m_rectCount; i++)
	112	m_rects[i] = rects[i];
	113	}
	114	}
	115
	116	void wxRegionRefData::DeleteRects()
	117	{
	118	if (m_rects)
	119	{
	120	delete[] m_rects;
	121	m_rects = (wxRect*) NULL;
	122	}
	123	m_rectCount = 0;
	124	m_usingRects = FALSE;
	125	}
	126
	127	#define M_REGION (((wxRegionRefData*)m_refData)->m_region)
	128
	129	//-----------------------------------------------------------------------------
	130	// wxRegion
	131	//-----------------------------------------------------------------------------
	132
	133	/*!
	134	* Create an empty region.
	135	*/
	136	wxRegion::wxRegion()
	137	{
	138	}
	139
	140	wxRegion::wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
	141	{
	142	m_refData = new wxRegionRefData;
	143
	144	XRectangle rect;
	145	rect.x = x;
	146	rect.y = y;
	147	rect.width = w;
	148	rect.height = h;
	149	XUnionRectWithRegion(&rect, M_REGION, M_REGION);
	150	}
	151
	152	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
	153	{
	154	m_refData = new wxRegionRefData;
	155
	156	XRectangle rect;
	157	rect.x = topLeft.x;
	158	rect.y = topLeft.y;
	159	rect.width = bottomRight.x - topLeft.x;
	160	rect.height = bottomRight.y - topLeft.y;
	161	XUnionRectWithRegion(&rect, M_REGION, M_REGION);
	162	}
	163
	164	wxRegion::wxRegion(const wxRect& rect)
	165	{
	166	m_refData = new wxRegionRefData;
	167
	168	XRectangle rect1;
	169	rect1.x = rect.x;
	170	rect1.y = rect.y;
	171	rect1.width = rect.width;
	172	rect1.height = rect.height;
	173	XUnionRectWithRegion(&rect1, M_REGION, M_REGION);
	174	}
	175
	176	/*!
	177	* Destroy the region.
	178	*/
	179	wxRegion::~wxRegion()
	180	{
	181	// m_refData unrefed in ~wxObject
	182	}
	183
	184	// Get the internal region handle
	185	WXRegion wxRegion::GetXRegion() const
	186	{
	187	wxASSERT( m_refData !=NULL );
	188
	189	return (WXRegion) ((wxRegionRefData*)m_refData)->m_region;
	190	}
	191
	192	//-----------------------------------------------------------------------------
	193	//# Modify region
	194	//-----------------------------------------------------------------------------
	195
	196	//! Clear current region
	197	void wxRegion::Clear()
	198	{
	199	UnRef();
	200	}
	201
	202	//! Combine rectangle (x, y, w, h) with this.
	203	bool
	204	wxRegion::Combine(wxCoord x, wxCoord y,
	205	wxCoord width, wxCoord height,
	206	wxRegionOp op)
	207	{
	208	// work around for XUnionRectWithRegion() bug: taking a union with an empty
	209	// rect results in an empty region (at least XFree 3.3.6 and 4.0 have this
	210	// problem)
	211	if ( op == wxRGN_OR && (!width \|\| !height) )
	212	return TRUE;
	213
	214	// Don't change shared data
	215	if (!m_refData) {
	216	m_refData = new wxRegionRefData();
	217	} else if (m_refData->GetRefCount() > 1) {
	218	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	219	UnRef();
	220	m_refData = new wxRegionRefData(*ref);
	221	}
	222	// If ref count is 1, that means it's 'ours' anyway so no action.
	223
	224	Region rectRegion = XCreateRegion();
	225
	226	XRectangle rect;
	227	rect.x = x;
	228	rect.y = y;
	229	rect.width = width;
	230	rect.height = height;
	231	XUnionRectWithRegion(&rect, rectRegion, rectRegion);
	232
	233	switch (op)
	234	{
	235	case wxRGN_AND:
	236	XIntersectRegion(M_REGION, rectRegion, M_REGION);
	237	break ;
	238	case wxRGN_OR:
	239	XUnionRegion(M_REGION, rectRegion, M_REGION);
	240	break ;
	241	case wxRGN_XOR:
	242	// TODO
	243	break ;
	244	case wxRGN_DIFF:
	245	// TODO
	246	break ;
	247	case wxRGN_COPY: // Don't have to do this one
	248	default:
	249	// TODO
	250	break ;
	251	}
	252
	253	return FALSE;
	254	}
	255
	256	//! Union /e region with this.
	257	bool wxRegion::Combine(const wxRegion& region, wxRegionOp op)
	258	{
	259	if (region.Empty())
	260	return FALSE;
	261
	262	// Don't change shared data
	263	if (!m_refData) {
	264	m_refData = new wxRegionRefData();
	265	} else if (m_refData->GetRefCount() > 1) {
	266	wxRegionRefData* ref = (wxRegionRefData*)m_refData;
	267	UnRef();
	268	m_refData = new wxRegionRefData(*ref);
	269	}
	270
	271	switch (op)
	272	{
	273	case wxRGN_AND:
	274	XIntersectRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
	275	M_REGION);
	276	break ;
	277	case wxRGN_OR:
	278	XUnionRegion(M_REGION, ((wxRegionRefData*)region.m_refData)->m_region,
	279	M_REGION);
	280	break ;
	281	case wxRGN_XOR:
	282	// TODO
	283	break ;
	284	case wxRGN_DIFF:
	285	// TODO
	286	break ;
	287	case wxRGN_COPY: // Don't have to do this one
	288	default:
	289	// TODO
	290	break ;
	291	}
	292
	293	return FALSE;
	294	}
	295
	296	bool wxRegion::Combine(const wxRect& rect, wxRegionOp op)
	297	{
	298	return Combine(rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight(), op);
	299	}
	300
	301	//-----------------------------------------------------------------------------
	302	//# Information on region
	303	//-----------------------------------------------------------------------------
	304
	305	// Outer bounds of region
	306	void wxRegion::GetBox(wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h) const
	307	{
	308	if (m_refData) {
	309	XRectangle rect;
	310	XClipBox(M_REGION, &rect);
	311	x = rect.x;
	312	y = rect.y;
	313	w = rect.width;
	314	h = rect.height;
	315	} else {
	316	x = y = w = h = 0;
	317	}
	318	}
	319
	320	wxRect wxRegion::GetBox() const
	321	{
	322	wxCoord x, y, w, h;
	323	GetBox(x, y, w, h);
	324	return wxRect(x, y, w, h);
	325	}
	326
	327	// Is region empty?
	328	bool wxRegion::Empty() const
	329	{
	330	return m_refData ? XEmptyRegion(M_REGION) : TRUE;
	331	}
	332
	333	//-----------------------------------------------------------------------------
	334	//# Tests
	335	//-----------------------------------------------------------------------------
	336
	337	// Does the region contain the point (x,y)?
	338	wxRegionContain wxRegion::Contains(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y)) const
	339	{
	340	if (!m_refData)
	341	return wxOutRegion;
	342
	343	// TODO. Return wxInRegion if within region.
	344	if (0)
	345	return wxInRegion;
	346	return wxOutRegion;
	347	}
	348
	349	// Does the region contain the point pt?
	350	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
	351	{
	352	if (!m_refData)
	353	return wxOutRegion;
	354
	355	return XPointInRegion(M_REGION, pt.x, pt.y) ? wxInRegion : wxOutRegion;
	356	}
	357
	358	// Does the region contain the rectangle (x, y, w, h)?
	359	wxRegionContain wxRegion::Contains(wxCoord x, wxCoord y, wxCoord w, wxCoord h) const
	360	{
	361	if (!m_refData)
	362	return wxOutRegion;
	363
	364	switch (XRectInRegion(M_REGION, x, y, w, h)) {
	365	case RectangleIn: return wxInRegion;
	366	case RectanglePart: return wxPartRegion;
	367	}
	368	return wxOutRegion;
	369	}
	370
	371	// Does the region contain the rectangle rect
	372	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	373	{
	374	if (!m_refData)
	375	return wxOutRegion;
	376
	377	wxCoord x, y, w, h;
	378	x = rect.x;
	379	y = rect.y;
	380	w = rect.GetWidth();
	381	h = rect.GetHeight();
	382	return Contains(x, y, w, h);
	383	}
	384
	385	bool wxRegion::UsingRects() const
	386	{
	387	return ((wxRegionRefData*)m_refData)->UsingRects();
	388	}
	389
	390	/*
	391	wxRectList& wxRegion::GetRectList()
	392	{
	393	return ((wxRegionRefData*)m_refData)->GetRectList();
	394	}
	395	*/
	396
	397	wxRect* wxRegion::GetRects()
	398	{
	399	return ((wxRegionRefData*)m_refData)->GetRects();
	400	}
	401
	402	int wxRegion::GetRectCount() const
	403	{
	404	return ((wxRegionRefData*)m_refData)->GetRectCount();
	405	}
	406
	407	void wxRegion::SetRects(const wxRectList& rectList)
	408	{
	409	((wxRegionRefData*)m_refData)->SetRects(rectList);
	410	}
	411
	412	void wxRegion::SetRects(int count, const wxRect* rects)
	413	{
	414	((wxRegionRefData*)m_refData)->SetRects(count, rects);
	415	}
	416
	417	///////////////////////////////////////////////////////////////////////////////
	418	// //
	419	// wxRegionIterator //
	420	// //
	421	///////////////////////////////////////////////////////////////////////////////
	422
	423	/*!
	424	* Initialize empty iterator
	425	*/
	426	wxRegionIterator::wxRegionIterator() : m_current(0), m_numRects(0), m_rects(NULL)
	427	{
	428	}
	429
	430	wxRegionIterator::~wxRegionIterator()
	431	{
	432	if (m_rects)
	433	delete[] m_rects;
	434	}
	435
	436	/*!
	437	* Initialize iterator for region
	438	*/
	439	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	440	{
	441	m_rects = NULL;
	442
	443	Reset(region);
	444	}
	445
	446	/*!
	447	* Reset iterator for a new /e region.
	448	*/
	449	void wxRegionIterator::Reset(const wxRegion& region)
	450	{
	451	m_current = 0;
	452	m_region = region;
	453
	454	if (m_rects)
	455	delete[] m_rects;
	456
	457	m_rects = NULL;
	458
	459	if (m_region.Empty())
	460	m_numRects = 0;
	461	else
	462	{
	463	// Create m_rects and fill with rectangles for this region.
	464	// Since we can't find the rectangles in a region, we cheat
	465	// by retrieving the rectangles explicitly set in wxPaintDC::wxPaintDC
	466	// (dcclient.cpp).
	467	if (m_region.UsingRects())
	468	{
	469	wxRect* rects = m_region.GetRects();
	470	int count = m_region.GetRectCount();
	471	m_numRects = count;
	472	m_rects = new wxRect[m_numRects];
	473
	474	for (size_t i = 0; i < m_numRects; i++)
	475	m_rects[i] = rects[i];
	476
	477	/*
	478	int i = 0;
	479	wxRectList::Node* node = rectList.GetFirst();
	480	while (node) {
	481	wxRect* rect = node->GetData();
	482	m_rects[i] = * rect;
	483	node = node->GetNext();
	484	i ++;
	485	}
	486	*/
	487	}
	488	else
	489	{
	490	// For now, fudge by getting the whole bounding box.
	491	m_rects = new wxRect[1];
	492	m_numRects = 1;
	493	m_rects[0] = m_region.GetBox();
	494	}
	495	}
	496	}
	497
	498	/*!
	499	* Increment iterator. The rectangle returned is the one after the
	500	* incrementation.
	501	*/
	502	void wxRegionIterator::operator ++ ()
	503	{
	504	if (m_current < m_numRects)
	505	++m_current;
	506	}
	507
	508	/*!
	509	* Increment iterator. The rectangle returned is the one before the
	510	* incrementation.
	511	*/
	512	void wxRegionIterator::operator ++ (int)
	513	{
	514	if (m_current < m_numRects)
	515	++m_current;
	516	}
	517
	518	wxCoord wxRegionIterator::GetX() const
	519	{
	520	if (m_current < m_numRects)
	521	return m_rects[m_current].x;
	522	return 0;
	523	}
	524
	525	wxCoord wxRegionIterator::GetY() const
	526	{
	527	if (m_current < m_numRects)
	528	return m_rects[m_current].y;
	529	return 0;
	530	}
	531
	532	wxCoord wxRegionIterator::GetW() const
	533	{
	534	if (m_current < m_numRects)
	535	return m_rects[m_current].width ;
	536	return 0;
	537	}
	538
	539	wxCoord wxRegionIterator::GetH() const
	540	{
	541	if (m_current < m_numRects)
	542	return m_rects[m_current].height;
	543	return 0;
	544	}
	545