src/x11/region.cpp

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

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "region.h"
#endif

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

#ifdef __VMS__
#pragma message disable nosimpint
#endif
#include "wx/x11/private.h"
#include "X11/Xutil.h"
#ifdef __VMS__
#pragma message enable nosimpint
#endif

// ----------------------------------------------------------------------------
// wxRegionRefData: private class containing the information about the region
// ----------------------------------------------------------------------------

class wxRegionRefData : public wxObjectRefData
{
public:
    wxRegionRefData()
    {
        m_region = NULL;
    }

    wxRegionRefData(const wxRegionRefData& refData)
    {
        m_region = XCreateRegion();
        XUnionRegion( refData.m_region, m_region, m_region );
    }

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

    Region m_region;
};

// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------

#define M_REGIONDATA ((wxRegionRefData *)m_refData)
#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))

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

// ----------------------------------------------------------------------------
// wxRegion construction
// ----------------------------------------------------------------------------

#define M_REGIONDATA ((wxRegionRefData *)m_refData)

void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
    XRectangle rect;
    rect.x = x;
    rect.y = y;
    rect.width = w;
    rect.height = h;

    m_refData = new wxRegionRefData();

    M_REGIONDATA->m_region = XCreateRegion();
    XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
}

wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle )
{
#if 0
    XPoint *xpoints = new XPoint[n];
    for ( size_t i = 0 ; i < n ; i++ )
    {
        xpoints[i].x = points[i].x;
        xpoints[i].y = points[i].y;
    }

    m_refData = new wxRegionRefData();

    Region* reg = gdk_region_polygon
                     (
                        gdkpoints,
                        n,
                        fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE
                                                    : GDK_EVEN_ODD_RULE
                     );

    M_REGIONDATA->m_region = reg;

    delete [] xpoints;
#endif
}

wxRegion::~wxRegion()
{
    // m_refData unrefed in ~wxObject
}

wxObjectRefData *wxRegion::CreateRefData() const
{
    return new wxRegionRefData;
}

wxObjectRefData *wxRegion::CloneRefData(const wxObjectRefData *data) const
{
    return new wxRegionRefData(*(wxRegionRefData *)data);
}

// ----------------------------------------------------------------------------
// wxRegion comparison
// ----------------------------------------------------------------------------

bool wxRegion::operator==( const wxRegion& region )
{
    if (m_refData == region.m_refData) return TRUE;

    if (!m_refData || !region.m_refData) return FALSE;

    // compare the regions themselves, not the pointers to ref data!
    return XEqualRegion( M_REGIONDATA->m_region,
                         M_REGIONDATA_OF(region)->m_region );
}

// ----------------------------------------------------------------------------
// wxRegion operations
// ----------------------------------------------------------------------------

void wxRegion::Clear()
{
    UnRef();
}

bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    // 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 ( !width || !height )
        return TRUE;

    XRectangle rect;
    rect.x = x;
    rect.y = y;
    rect.width = width;
    rect.height = height;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = XCreateRegion();
        XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
    }
    else
    {
        AllocExclusive();

        XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
    }

    return TRUE;
}

bool wxRegion::Union( const wxRect& rect )
{
    return Union( rect.x, rect.y, rect.width, rect.height );
}

bool wxRegion::Union( const wxRegion& region )
{
    if (region.IsNull())
        return FALSE;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = XCreateRegion();
    }
    else
    {
        AllocExclusive();
    }

    XUnionRegion( M_REGIONDATA->m_region,
                  M_REGIONDATA_OF(region)->m_region,
                  M_REGIONDATA->m_region );

    return TRUE;
}

bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    wxRegion reg( x, y, width, height );

    return Intersect( reg );
}

bool wxRegion::Intersect( const wxRect& rect )
{
    wxRegion reg( rect );

    return Intersect( reg );
}

bool wxRegion::Intersect( const wxRegion& region )
{
    if (region.IsNull())
        return FALSE;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = XCreateRegion();

        // leave here
        return TRUE;
    }
    else
    {
        AllocExclusive();
    }

    XIntersectRegion( M_REGIONDATA->m_region,
                      M_REGIONDATA_OF(region)->m_region,
                      M_REGIONDATA->m_region );

    return TRUE;
}

bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    wxRegion reg( x, y, width, height );
    return Subtract( reg );
}

bool wxRegion::Subtract( const wxRect& rect )
{
    wxRegion reg( rect );
    return Subtract( reg );
}

bool wxRegion::Subtract( const wxRegion& region )
{
    if (region.IsNull())
        return FALSE;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = XCreateRegion();
    }
    else
    {
        AllocExclusive();
    }

    XSubtractRegion( M_REGIONDATA->m_region,
                     M_REGIONDATA_OF(region)->m_region,
                     M_REGIONDATA->m_region );

    return TRUE;
}

bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    wxRegion reg( x, y, width, height );
    return Xor( reg );
}

bool wxRegion::Xor( const wxRect& rect )
{
    wxRegion reg( rect );
    return Xor( reg );
}

bool wxRegion::Xor( const wxRegion& region )
{
    if (region.IsNull())
        return FALSE;

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = XCreateRegion();
    }
    else
    {
        AllocExclusive();
    }

    XXorRegion( M_REGIONDATA->m_region,
                M_REGIONDATA_OF(region)->m_region,
                M_REGIONDATA->m_region );

    return TRUE;
}

// ----------------------------------------------------------------------------
// wxRegion tests
// ----------------------------------------------------------------------------

void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
{
    if (m_refData)
    {
        XRectangle rect;
        XClipBox( M_REGIONDATA->m_region, &rect );
        x = rect.x;
        y = rect.y;
        w = rect.width;
        h = rect.height;
    }
    else
    {
        x = 0;
        y = 0;
        w = -1;
        h = -1;
    }
}

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

bool wxRegion::Offset( wxCoord x, wxCoord y )
{
    if (!m_refData)
        return FALSE;

    AllocExclusive();

    XOffsetRegion( M_REGIONDATA->m_region, x, y );

    return TRUE;
}

bool wxRegion::Empty() const
{
    if (!m_refData)
        return TRUE;

    return XEmptyRegion( M_REGIONDATA->m_region );
}

wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
{
    if (!m_refData)
        return wxOutRegion;

    if (XPointInRegion( M_REGIONDATA->m_region, x, y ))
        return wxInRegion;
    else
        return wxOutRegion;
}

wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
{
    if (!m_refData)
        return wxOutRegion;

    int res = XRectInRegion( M_REGIONDATA->m_region, x, y, w, h );
    switch (res)
    {
        case RectangleIn:   return wxInRegion;
        case RectangleOut:  return wxOutRegion;
        case RectanglePart: return wxPartRegion;
    }
    return wxOutRegion;
}

wxRegionContain wxRegion::Contains(const wxPoint& pt) const
{
    return Contains( pt.x, pt.y );
}

wxRegionContain wxRegion::Contains(const wxRect& rect) const
{
    return Contains( rect.x, rect.y, rect.width, rect.height );
}

WXRegion *wxRegion::GetX11Region() const
{
    if (!m_refData)
        return (WXRegion*) NULL;

    return (WXRegion*) M_REGIONDATA->m_region;
}

// ----------------------------------------------------------------------------
// wxRegionIterator
// ----------------------------------------------------------------------------

// the following structures must match the private structures
// in X11 region code ( xc/lib/X11/region.h )

// this makes the Region type transparent
// and we have access to the region rectangles

struct _XBox {
    short x1, x2, y1, y2;
};

struct _XRegion {
    long   size , numRects;
    _XBox *rects, extents;
};

class wxRIRefData: public wxObjectRefData
{
public:

    wxRIRefData() : m_rects(0), m_numRects(0){}
   ~wxRIRefData();

    wxRect *m_rects;
    size_t  m_numRects;

    void CreateRects( const wxRegion& r );
};

wxRIRefData::~wxRIRefData()
{
    delete [] m_rects;
}

void wxRIRefData::CreateRects( const wxRegion& region )
{
    if (m_rects)
      delete [] m_rects;

    m_rects = 0;
    m_numRects = 0;

    if (region.IsEmpty()) return;

    Region r = (Region) region.GetX11Region();
    if (r)
    {
#if wxUSE_NANOX
        GR_RECT rect;
        GrGetRegionBox(r, & rect);
        m_numRects = 1;
        m_rects = new wxRect[1];
        m_rects[0].x = rect.x;
        m_rects[0].y = rect.y;
        m_rects[0].width = rect.width;
        m_rects[0].height = rect.height;
#else
        m_numRects = r->numRects;
        if (m_numRects)
        {
            m_rects = new wxRect[m_numRects];
            for (size_t i=0; i < m_numRects; ++i)
            {
                _XBox &xr = r->rects[i];
                wxRect &wr = m_rects[i];
                wr.x = xr.x1;
                wr.y = xr.y1;
                wr.width = xr.x2-xr.x1;
                wr.height = xr.y2-xr.y1;
            }
        }
#endif
    }
}

wxRegionIterator::wxRegionIterator()
{
    m_refData = new wxRIRefData();
    Reset();
}

wxRegionIterator::wxRegionIterator( const wxRegion& region )
{
    m_refData = new wxRIRefData();
    Reset(region);
}

void wxRegionIterator::Reset( const wxRegion& region )
{
    m_region = region;
    ((wxRIRefData*)m_refData)->CreateRects(region);
    Reset();
}

bool wxRegionIterator::HaveRects() const
{
    return m_current < ((wxRIRefData*)m_refData)->m_numRects;
}

wxRegionIterator::operator bool () const
{
    return HaveRects();
}

void wxRegionIterator::operator ++ ()
{
    if (HaveRects()) ++m_current;
}

void wxRegionIterator::operator ++ (int)
{
    if (HaveRects()) ++m_current;
}

wxCoord wxRegionIterator::GetX() const
{
    if( !HaveRects() ) return 0;
    return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
}

wxCoord wxRegionIterator::GetY() const
{
    if( !HaveRects() ) return 0;
    return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
}

wxCoord wxRegionIterator::GetW() const
{
    if( !HaveRects() ) return -1;
    return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
}

wxCoord wxRegionIterator::GetH() const
{
    if( !HaveRects() ) return -1;
    return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
}

wxRect wxRegionIterator::GetRect() const
{
    wxRect r;
    if( HaveRects() )
        r = ((wxRIRefData*)m_refData)->m_rects[m_current];

    return r;
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// File: region.cpp
	3	// Purpose: Region class
	4	// Author: Julian Smart, Robert Roebling
	5	// Created: Fri Oct 24 10:46:34 MET 1997
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 1997 Julian Smart, Robert Roebling
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
	12	#pragma implementation "region.h"
	13	#endif
	14
	15	#include "wx/region.h"
	16	#include "wx/gdicmn.h"
	17	#include "wx/log.h"
	18
	19	#ifdef __VMS__
	20	#pragma message disable nosimpint
	21	#endif
	22	#include "wx/x11/private.h"
	23	#include "X11/Xutil.h"
	24	#ifdef __VMS__
	25	#pragma message enable nosimpint
	26	#endif
	27
	28	// ----------------------------------------------------------------------------
	29	// wxRegionRefData: private class containing the information about the region
	30	// ----------------------------------------------------------------------------
	31
	32	class wxRegionRefData : public wxObjectRefData
	33	{
	34	public:
	35	wxRegionRefData()
	36	{
	37	m_region = NULL;
	38	}
	39
	40	wxRegionRefData(const wxRegionRefData& refData)
	41	{
	42	m_region = XCreateRegion();
	43	XUnionRegion( refData.m_region, m_region, m_region );
	44	}
	45
	46	~wxRegionRefData()
	47	{
	48	if (m_region)
	49	XDestroyRegion( m_region );
	50	}
	51
	52	Region m_region;
	53	};
	54
	55	// ----------------------------------------------------------------------------
	56	// macros
	57	// ----------------------------------------------------------------------------
	58
	59	#define M_REGIONDATA ((wxRegionRefData *)m_refData)
	60	#define M_REGIONDATA_OF(rgn) ((wxRegionRefData *)(rgn.m_refData))
	61
	62	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject);
	63	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
	64
	65	// ----------------------------------------------------------------------------
	66	// wxRegion construction
	67	// ----------------------------------------------------------------------------
	68
	69	#define M_REGIONDATA ((wxRegionRefData *)m_refData)
	70
	71	void wxRegion::InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
	72	{
	73	XRectangle rect;
	74	rect.x = x;
	75	rect.y = y;
	76	rect.width = w;
	77	rect.height = h;
	78
	79	m_refData = new wxRegionRefData();
	80
	81	M_REGIONDATA->m_region = XCreateRegion();
	82	XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
	83	}
	84
	85	wxRegion::wxRegion( size_t n, const wxPoint *points, int fillStyle )
	86	{
	87	#if 0
	88	XPoint *xpoints = new XPoint[n];
	89	for ( size_t i = 0 ; i < n ; i++ )
	90	{
	91	xpoints[i].x = points[i].x;
	92	xpoints[i].y = points[i].y;
	93	}
	94
	95	m_refData = new wxRegionRefData();
	96
	97	Region* reg = gdk_region_polygon
	98	(
	99	gdkpoints,
	100	n,
	101	fillStyle == wxWINDING_RULE ? GDK_WINDING_RULE
	102	: GDK_EVEN_ODD_RULE
	103	);
	104
	105	M_REGIONDATA->m_region = reg;
	106
	107	delete [] xpoints;
	108	#endif
	109	}
	110
	111	wxRegion::~wxRegion()
	112	{
	113	// m_refData unrefed in ~wxObject
	114	}
	115
	116	wxObjectRefData *wxRegion::CreateRefData() const
	117	{
	118	return new wxRegionRefData;
	119	}
	120
	121	wxObjectRefData wxRegion::CloneRefData(const wxObjectRefData data) const
	122	{
	123	return new wxRegionRefData((wxRegionRefData )data);
	124	}
	125
	126	// ----------------------------------------------------------------------------
	127	// wxRegion comparison
	128	// ----------------------------------------------------------------------------
	129
	130	bool wxRegion::operator==( const wxRegion& region )
	131	{
	132	if (m_refData == region.m_refData) return TRUE;
	133
	134	if (!m_refData \|\| !region.m_refData) return FALSE;
	135
	136	// compare the regions themselves, not the pointers to ref data!
	137	return XEqualRegion( M_REGIONDATA->m_region,
	138	M_REGIONDATA_OF(region)->m_region );
	139	}
	140
	141	// ----------------------------------------------------------------------------
	142	// wxRegion operations
	143	// ----------------------------------------------------------------------------
	144
	145	void wxRegion::Clear()
	146	{
	147	UnRef();
	148	}
	149
	150	bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	151	{
	152	// work around for XUnionRectWithRegion() bug: taking a union with an empty
	153	// rect results in an empty region (at least XFree 3.3.6 and 4.0 have this
	154	// problem)
	155	if ( !width \|\| !height )
	156	return TRUE;
	157
	158	XRectangle rect;
	159	rect.x = x;
	160	rect.y = y;
	161	rect.width = width;
	162	rect.height = height;
	163
	164	if (!m_refData)
	165	{
	166	m_refData = new wxRegionRefData();
	167	M_REGIONDATA->m_region = XCreateRegion();
	168	XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
	169	}
	170	else
	171	{
	172	AllocExclusive();
	173
	174	XUnionRectWithRegion( &rect, M_REGIONDATA->m_region, M_REGIONDATA->m_region );
	175	}
	176
	177	return TRUE;
	178	}
	179
	180	bool wxRegion::Union( const wxRect& rect )
	181	{
	182	return Union( rect.x, rect.y, rect.width, rect.height );
	183	}
	184
	185	bool wxRegion::Union( const wxRegion& region )
	186	{
	187	if (region.IsNull())
	188	return FALSE;
	189
	190	if (!m_refData)
	191	{
	192	m_refData = new wxRegionRefData();
	193	M_REGIONDATA->m_region = XCreateRegion();
	194	}
	195	else
	196	{
	197	AllocExclusive();
	198	}
	199
	200	XUnionRegion( M_REGIONDATA->m_region,
	201	M_REGIONDATA_OF(region)->m_region,
	202	M_REGIONDATA->m_region );
	203
	204	return TRUE;
	205	}
	206
	207	bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	208	{
	209	wxRegion reg( x, y, width, height );
	210
	211	return Intersect( reg );
	212	}
	213
	214	bool wxRegion::Intersect( const wxRect& rect )
	215	{
	216	wxRegion reg( rect );
	217
	218	return Intersect( reg );
	219	}
	220
	221	bool wxRegion::Intersect( const wxRegion& region )
	222	{
	223	if (region.IsNull())
	224	return FALSE;
	225
	226	if (!m_refData)
	227	{
	228	m_refData = new wxRegionRefData();
	229	M_REGIONDATA->m_region = XCreateRegion();
	230
	231	// leave here
	232	return TRUE;
	233	}
	234	else
	235	{
	236	AllocExclusive();
	237	}
	238
	239	XIntersectRegion( M_REGIONDATA->m_region,
	240	M_REGIONDATA_OF(region)->m_region,
	241	M_REGIONDATA->m_region );
	242
	243	return TRUE;
	244	}
	245
	246	bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	247	{
	248	wxRegion reg( x, y, width, height );
	249	return Subtract( reg );
	250	}
	251
	252	bool wxRegion::Subtract( const wxRect& rect )
	253	{
	254	wxRegion reg( rect );
	255	return Subtract( reg );
	256	}
	257
	258	bool wxRegion::Subtract( const wxRegion& region )
	259	{
	260	if (region.IsNull())
	261	return FALSE;
	262
	263	if (!m_refData)
	264	{
	265	m_refData = new wxRegionRefData();
	266	M_REGIONDATA->m_region = XCreateRegion();
	267	}
	268	else
	269	{
	270	AllocExclusive();
	271	}
	272
	273	XSubtractRegion( M_REGIONDATA->m_region,
	274	M_REGIONDATA_OF(region)->m_region,
	275	M_REGIONDATA->m_region );
	276
	277	return TRUE;
	278	}
	279
	280	bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	281	{
	282	wxRegion reg( x, y, width, height );
	283	return Xor( reg );
	284	}
	285
	286	bool wxRegion::Xor( const wxRect& rect )
	287	{
	288	wxRegion reg( rect );
	289	return Xor( reg );
	290	}
	291
	292	bool wxRegion::Xor( const wxRegion& region )
	293	{
	294	if (region.IsNull())
	295	return FALSE;
	296
	297	if (!m_refData)
	298	{
	299	m_refData = new wxRegionRefData();
	300	M_REGIONDATA->m_region = XCreateRegion();
	301	}
	302	else
	303	{
	304	AllocExclusive();
	305	}
	306
	307	XXorRegion( M_REGIONDATA->m_region,
	308	M_REGIONDATA_OF(region)->m_region,
	309	M_REGIONDATA->m_region );
	310
	311	return TRUE;
	312	}
	313
	314	// ----------------------------------------------------------------------------
	315	// wxRegion tests
	316	// ----------------------------------------------------------------------------
	317
	318	void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
	319	{
	320	if (m_refData)
	321	{
	322	XRectangle rect;
	323	XClipBox( M_REGIONDATA->m_region, &rect );
	324	x = rect.x;
	325	y = rect.y;
	326	w = rect.width;
	327	h = rect.height;
	328	}
	329	else
	330	{
	331	x = 0;
	332	y = 0;
	333	w = -1;
	334	h = -1;
	335	}
	336	}
	337
	338	wxRect wxRegion::GetBox() const
	339	{
	340	wxCoord x, y, w, h;
	341	GetBox( x, y, w, h );
	342	return wxRect( x, y, w, h );
	343	}
	344
	345	bool wxRegion::Offset( wxCoord x, wxCoord y )
	346	{
	347	if (!m_refData)
	348	return FALSE;
	349
	350	AllocExclusive();
	351
	352	XOffsetRegion( M_REGIONDATA->m_region, x, y );
	353
	354	return TRUE;
	355	}
	356
	357	bool wxRegion::Empty() const
	358	{
	359	if (!m_refData)
	360	return TRUE;
	361
	362	return XEmptyRegion( M_REGIONDATA->m_region );
	363	}
	364
	365	wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
	366	{
	367	if (!m_refData)
	368	return wxOutRegion;
	369
	370	if (XPointInRegion( M_REGIONDATA->m_region, x, y ))
	371	return wxInRegion;
	372	else
	373	return wxOutRegion;
	374	}
	375
	376	wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
	377	{
	378	if (!m_refData)
	379	return wxOutRegion;
	380
	381	int res = XRectInRegion( M_REGIONDATA->m_region, x, y, w, h );
	382	switch (res)
	383	{
	384	case RectangleIn: return wxInRegion;
	385	case RectangleOut: return wxOutRegion;
	386	case RectanglePart: return wxPartRegion;
	387	}
	388	return wxOutRegion;
	389	}
	390
	391	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
	392	{
	393	return Contains( pt.x, pt.y );
	394	}
	395
	396	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	397	{
	398	return Contains( rect.x, rect.y, rect.width, rect.height );
	399	}
	400
	401	WXRegion *wxRegion::GetX11Region() const
	402	{
	403	if (!m_refData)
	404	return (WXRegion*) NULL;
	405
	406	return (WXRegion*) M_REGIONDATA->m_region;
	407	}
	408
	409	// ----------------------------------------------------------------------------
	410	// wxRegionIterator
	411	// ----------------------------------------------------------------------------
	412
	413	// the following structures must match the private structures
	414	// in X11 region code ( xc/lib/X11/region.h )
	415
	416	// this makes the Region type transparent
	417	// and we have access to the region rectangles
	418
	419	struct _XBox {
	420	short x1, x2, y1, y2;
	421	};
	422
	423	struct _XRegion {
	424	long size , numRects;
	425	_XBox *rects, extents;
	426	};
	427
	428	class wxRIRefData: public wxObjectRefData
	429	{
	430	public:
	431
	432	wxRIRefData() : m_rects(0), m_numRects(0){}
	433	~wxRIRefData();
	434
	435	wxRect *m_rects;
	436	size_t m_numRects;
	437
	438	void CreateRects( const wxRegion& r );
	439	};
	440
	441	wxRIRefData::~wxRIRefData()
	442	{
	443	delete [] m_rects;
	444	}
	445
	446	void wxRIRefData::CreateRects( const wxRegion& region )
	447	{
	448	if (m_rects)
	449	delete [] m_rects;
	450
	451	m_rects = 0;
	452	m_numRects = 0;
	453
	454	if (region.IsEmpty()) return;
	455
	456	Region r = (Region) region.GetX11Region();
	457	if (r)
	458	{
	459	#if wxUSE_NANOX
	460	GR_RECT rect;
	461	GrGetRegionBox(r, & rect);
	462	m_numRects = 1;
	463	m_rects = new wxRect[1];
	464	m_rects[0].x = rect.x;
	465	m_rects[0].y = rect.y;
	466	m_rects[0].width = rect.width;
	467	m_rects[0].height = rect.height;
	468	#else
	469	m_numRects = r->numRects;
	470	if (m_numRects)
	471	{
	472	m_rects = new wxRect[m_numRects];
	473	for (size_t i=0; i < m_numRects; ++i)
	474	{
	475	_XBox &xr = r->rects[i];
	476	wxRect &wr = m_rects[i];
	477	wr.x = xr.x1;
	478	wr.y = xr.y1;
	479	wr.width = xr.x2-xr.x1;
	480	wr.height = xr.y2-xr.y1;
	481	}
	482	}
	483	#endif
	484	}
	485	}
	486
	487	wxRegionIterator::wxRegionIterator()
	488	{
	489	m_refData = new wxRIRefData();
	490	Reset();
	491	}
	492
	493	wxRegionIterator::wxRegionIterator( const wxRegion& region )
	494	{
	495	m_refData = new wxRIRefData();
	496	Reset(region);
	497	}
	498
	499	void wxRegionIterator::Reset( const wxRegion& region )
	500	{
	501	m_region = region;
	502	((wxRIRefData*)m_refData)->CreateRects(region);
	503	Reset();
	504	}
	505
	506	bool wxRegionIterator::HaveRects() const
	507	{
	508	return m_current < ((wxRIRefData*)m_refData)->m_numRects;
	509	}
	510
	511	wxRegionIterator::operator bool () const
	512	{
	513	return HaveRects();
	514	}
	515
	516	void wxRegionIterator::operator ++ ()
	517	{
	518	if (HaveRects()) ++m_current;
	519	}
	520
	521	void wxRegionIterator::operator ++ (int)
	522	{
	523	if (HaveRects()) ++m_current;
	524	}
	525
	526	wxCoord wxRegionIterator::GetX() const
	527	{
	528	if( !HaveRects() ) return 0;
	529	return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
	530	}
	531
	532	wxCoord wxRegionIterator::GetY() const
	533	{
	534	if( !HaveRects() ) return 0;
	535	return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
	536	}
	537
	538	wxCoord wxRegionIterator::GetW() const
	539	{
	540	if( !HaveRects() ) return -1;
	541	return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
	542	}
	543
	544	wxCoord wxRegionIterator::GetH() const
	545	{
	546	if( !HaveRects() ) return -1;
	547	return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
	548	}
	549
	550	wxRect wxRegionIterator::GetRect() const
	551	{
	552	wxRect r;
	553	if( HaveRects() )
	554	r = ((wxRIRefData*)m_refData)->m_rects[m_current];
	555
	556	return r;
	557	}
	558