[wxWidgets.git] / src / osx / carbon / region.cpp

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

#include "wx/wxprec.h"

#if wxOSX_USE_COCOA_OR_CARBON

#include "wx/region.h"

#ifndef WX_PRECOMP
    #include "wx/gdicmn.h"
    #include "wx/dcmemory.h"
#endif

#include "wx/osx/private.h"

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

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

class WXDLLEXPORT wxRegionRefData : public wxGDIRefData
{
public:
    wxRegionRefData()
    {
        m_macRgn.reset( HIShapeCreateMutable() );
    }

    wxRegionRefData(wxCFRef<HIShapeRef> &region)
    {
        m_macRgn.reset( HIShapeCreateMutableCopy(region) );
    }

    wxRegionRefData(long x, long y, long w, long h)
    {
        CGRect r = CGRectMake(x,y,w,h);
        wxCFRef<HIShapeRef> rect(HIShapeCreateWithRect(&r));
        m_macRgn.reset( HIShapeCreateMutableCopy(rect) );
    }

    wxRegionRefData(const wxRegionRefData& data)
        : wxGDIRefData()
    {
        m_macRgn.reset( HIShapeCreateMutableCopy(data.m_macRgn) );
    }

    virtual ~wxRegionRefData()
    {
    }

    wxCFRef<HIMutableShapeRef> m_macRgn;
};

#define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
#define OTHER_M_REGION(a) (((wxRegionRefData*)(a.m_refData))->m_macRgn)

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

wxRegion::wxRegion(WXHRGN hRegion )
{
    wxCFRef< HIShapeRef > shape( (HIShapeRef) hRegion );
    m_refData = new wxRegionRefData(shape);
}

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

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

wxRegion::wxRegion(const wxRect& rect)
{
    m_refData = new wxRegionRefData(rect.x , rect.y , rect.width , rect.height);
}

wxRegion::wxRegion(size_t n, const wxPoint *points, wxPolygonFillMode fillStyle)
{
    // Set the region to a polygon shape generically using a bitmap with the 
    // polygon drawn on it. 
 
    m_refData = new wxRegionRefData(); 
     
    wxCoord mx = 0; 
    wxCoord my = 0; 
    wxPoint p; 
    size_t idx;     
     
    // Find the max size needed to draw the polygon 
    for (idx=0; idx<n; idx++) 
    { 
        wxPoint pt = points[idx]; 
        if (pt.x > mx) 
            mx = pt.x; 
        if (pt.y > my) 
            my = pt.y; 
    } 
 
    // Make the bitmap 
    wxBitmap bmp(mx, my); 
    wxMemoryDC dc(bmp); 
    dc.SetBackground(*wxBLACK_BRUSH); 
    dc.Clear(); 
    dc.SetPen(*wxWHITE_PEN); 
    dc.SetBrush(*wxWHITE_BRUSH); 
    dc.DrawPolygon(n, (wxPoint*)points, 0, 0, fillStyle); 
    dc.SelectObject(wxNullBitmap); 
    bmp.SetMask(new wxMask(bmp, *wxBLACK)); 
 
    // Use it to set this region 
    Union(bmp); 
}

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

wxGDIRefData *wxRegion::CreateGDIRefData() const
{
    return new wxRegionRefData;
}

wxGDIRefData *wxRegion::CloneGDIRefData(const wxGDIRefData *data) const
{
    return new wxRegionRefData(*static_cast<const wxRegionRefData *>(data));
}

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

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

// Move the region
bool wxRegion::DoOffset(wxCoord x, wxCoord y)
{
    wxCHECK_MSG( m_refData, false, wxT("invalid wxRegion") );

    if ( !x && !y )
        // nothing to do
        return true;

    AllocExclusive();

    verify_noerr( HIShapeOffset( M_REGION , x , y ) ) ;

    return true ;
}


//! Union /e region with this.
bool wxRegion::DoCombine(const wxRegion& region, wxRegionOp op)
{
    wxCHECK_MSG( region.IsOk(), false, wxT("invalid wxRegion") );

    // Handle the special case of not initialized (e.g. default constructed)
    // region as we can't use HIShape functions if we don't have any shape.
    if ( !m_refData )
    {
        switch ( op )
        {
            case wxRGN_COPY:
            case wxRGN_OR:
            case wxRGN_XOR:
                // These operations make sense with a null region.
                *this = region;
                return true;

            case wxRGN_AND:
            case wxRGN_DIFF:
                // Those ones don't really make sense so just leave this region
                // empty/invalid.
                return false;
        }

        wxFAIL_MSG( wxT("Unknown region operation") );
        return false;
    }

    AllocExclusive();

    switch (op)
    {
        case wxRGN_AND:
            verify_noerr( HIShapeIntersect( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
            break ;

        case wxRGN_OR:
            verify_noerr( HIShapeUnion( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
            break ;

        case wxRGN_XOR:
            {
                // XOR is defined as the difference between union and intersection
                wxCFRef< HIShapeRef > unionshape( HIShapeCreateUnion( M_REGION , OTHER_M_REGION(region) ) );
                wxCFRef< HIShapeRef > intersectionshape( HIShapeCreateIntersection( M_REGION , OTHER_M_REGION(region) ) );
                verify_noerr( HIShapeDifference( unionshape, intersectionshape, M_REGION ) );
            }
            break ;

        case wxRGN_DIFF:
            verify_noerr( HIShapeDifference( M_REGION , OTHER_M_REGION(region) , M_REGION ) ) ;
            break ;

        case wxRGN_COPY:
        default:
            M_REGION.reset( HIShapeCreateMutableCopy( OTHER_M_REGION(region) ) );
            break ;
    }

    return true;
}

//-----------------------------------------------------------------------------
//# Information on region
//-----------------------------------------------------------------------------

bool wxRegion::DoIsEqual(const wxRegion& region) const
{
    // There doesn't seem to be any native function for checking the equality
    // of HIShapes so we compute their differences to determine if they are
    // equal.
    wxRegion r(*this);
    r.Subtract(region);

    if ( !r.IsEmpty() )
        return false;

    wxRegion r2(region);
    r2.Subtract(*this);

    return r2.IsEmpty();
}

// Outer bounds of region
bool wxRegion::DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
{
    if (m_refData)
    {
        CGRect box ;
        HIShapeGetBounds( M_REGION , &box ) ;
        x = static_cast<int>(box.origin.x);
        y = static_cast<int>(box.origin.y);
        w = static_cast<int>(box.size.width);
        h = static_cast<int>(box.size.height);

        return true;
    }
    else
    {
        x = y = w = h = 0;

        return false;
    }
}

// Is region empty?
bool wxRegion::IsEmpty() const
{
    if ( m_refData )
        return HIShapeIsEmpty( M_REGION ) ;
    else
        return true ;
}

WXHRGN wxRegion::GetWXHRGN() const
{
    if ( !m_refData )
        return NULL;

    return M_REGION ;
}

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

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

    CGPoint p = CGPointMake( x, y ) ;
    if (HIShapeContainsPoint( M_REGION , &p ) )
        return wxInRegion;

    return wxOutRegion;
}

// Does the region contain the rectangle (x, y, w, h)?
wxRegionContain wxRegion::DoContainsRect(const wxRect& r) const
{
    if (!m_refData)
        return wxOutRegion;

    CGRect rect = CGRectMake(r.x,r.y,r.width,r.height);
    wxCFRef<HIShapeRef> rectshape(HIShapeCreateWithRect(&rect));
    wxCFRef<HIShapeRef> intersect(HIShapeCreateIntersection(rectshape,M_REGION));
    CGRect bounds;
    HIShapeGetBounds(intersect, &bounds);

    if ( HIShapeIsRectangular(intersect) && CGRectEqualToRect(rect,bounds) )
        return wxInRegion;
    else if ( HIShapeIsEmpty( intersect ) )
        return wxOutRegion;
    else
        return wxPartRegion;
}

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

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

wxRegionIterator::~wxRegionIterator()
{
    wxDELETEA(m_rects);
}

wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
    : wxObject()
    , m_current(iterator.m_current)
    , m_numRects(0)
    , m_rects(NULL)
{
    SetRects(iterator.m_numRects, iterator.m_rects);
}

wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
{
    m_current  = iterator.m_current;
    SetRects(iterator.m_numRects, iterator.m_rects);

    return *this;
}

/*!
 * Set iterator rects for region
 */
void wxRegionIterator::SetRects(long numRects, wxRect *rects)
{
    wxDELETEA(m_rects);

    if (rects && (numRects > 0))
    {
        int i;

        m_rects = new wxRect[numRects];
        for (i = 0; i < numRects; i++)
            m_rects[i] = rects[i];
    }

    m_numRects = numRects;
}

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

    Reset(region);
}

/*!
 * Reset iterator for a new /e region.
 */

class RegionToRectsCallbackData
{
public :
    wxRect* m_rects ;
    long m_current ;
};

OSStatus wxOSXRegionToRectsCounterCallback(
    int message, HIShapeRef WXUNUSED(region), const CGRect *WXUNUSED(rect), void *data )
{
    long *m_numRects = (long*) data ;
    if ( message == kHIShapeEnumerateInit )
    {
        (*m_numRects) = 0 ;
    }
    else if (message == kHIShapeEnumerateRect)
    {
        (*m_numRects) += 1 ;
    }

    return noErr;
}

OSStatus wxOSXRegionToRectsSetterCallback(
    int message, HIShapeRef WXUNUSED(region), const CGRect *rect, void *data )
{
    if (message == kHIShapeEnumerateRect)
    {
        RegionToRectsCallbackData *cb = (RegionToRectsCallbackData*) data ;
        cb->m_rects[cb->m_current++] = wxRect( rect->origin.x , rect->origin.y , rect->size.width , rect->size.height ) ;
    }

    return noErr;
}

void wxRegionIterator::Reset(const wxRegion& region)
{
    m_current = 0;
    m_region = region;

    wxDELETEA(m_rects);

    if (m_region.IsEmpty())
    {
        m_numRects = 0;
    }
    else
    {
#if 0
        // fallback code in case we ever need it again
        // copying this to a path and dissecting the path would be an option
        m_numRects = 1;
        m_rects = new wxRect[m_numRects];
        m_rects[0] = m_region.GetBox();
#endif
        OSStatus err = HIShapeEnumerate (OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsCounterCallback,
            (void*)&m_numRects);
        if (err == noErr)
        {
            m_rects = new wxRect[m_numRects];
            RegionToRectsCallbackData data ;
            data.m_rects = m_rects ;
            data.m_current = 0 ;
            HIShapeEnumerate( OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsSetterCallback,
                (void*)&data );
        }
        else
        {
            m_numRects = 0;
        }
    }
}

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

    return *this;
}

/*!
 * Increment iterator. The rectangle returned is the one before the
 * incrementation.
 */
wxRegionIterator wxRegionIterator::operator ++ (int)
{
    wxRegionIterator previous(*this);

    if (m_current < m_numRects)
        ++m_current;

    return previous;
}

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

    return 0;
}

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

    return 0;
}

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

    return 0;
}

long wxRegionIterator::GetH() const
{
    if (m_current < m_numRects)
        return m_rects[m_current].height;

    return 0;
}

#endif
Commit	Line	Data
489468fe	1	/////////////////////////////////////////////////////////////////////////////
233f5738	2	// File: src/osx/carbon/region.cpp
489468fe SC	3	// Purpose: Region class
	4	// Author: Stefan Csomor
	5	// Created: Fri Oct 24 10:46:34 MET 1997
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 1997 Stefan Csomor
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#include "wx/wxprec.h"
	12
afd5d91c SC	13	#if wxOSX_USE_COCOA_OR_CARBON
afd5d91c SC	14
489468fe SC	15	#include "wx/region.h"
	16
	17	#ifndef WX_PRECOMP
	18	#include "wx/gdicmn.h"
ea76345f	19	#include "wx/dcmemory.h"
489468fe SC	20	#endif
489468fe SC	21
5398a2e0	22	#include "wx/osx/private.h"
489468fe SC	23
	24	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
	25	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
	26
	27	//-----------------------------------------------------------------------------
	28	// wxRegionRefData implementation
	29	//-----------------------------------------------------------------------------
	30
	31	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData
	32	{
	33	public:
	34	wxRegionRefData()
	35	{
	36	m_macRgn.reset( HIShapeCreateMutable() );
	37	}
	38
	39	wxRegionRefData(wxCFRef<HIShapeRef> &region)
	40	{
	41	m_macRgn.reset( HIShapeCreateMutableCopy(region) );
	42	}
	43
	44	wxRegionRefData(long x, long y, long w, long h)
	45	{
	46	CGRect r = CGRectMake(x,y,w,h);
	47	wxCFRef<HIShapeRef> rect(HIShapeCreateWithRect(&r));
	48	m_macRgn.reset( HIShapeCreateMutableCopy(rect) );
	49	}
	50
	51	wxRegionRefData(const wxRegionRefData& data)
	52	: wxGDIRefData()
	53	{
	54	m_macRgn.reset( HIShapeCreateMutableCopy(data.m_macRgn) );
	55	}
	56
	57	virtual ~wxRegionRefData()
	58	{
	59	}
	60
	61	wxCFRef<HIMutableShapeRef> m_macRgn;
	62	};
	63
	64	#define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
	65	#define OTHER_M_REGION(a) (((wxRegionRefData*)(a.m_refData))->m_macRgn)
	66
	67	//-----------------------------------------------------------------------------
	68	// wxRegion
	69	//-----------------------------------------------------------------------------
	70
489468fe SC	71	wxRegion::wxRegion(WXHRGN hRegion )
	72	{
	73	wxCFRef< HIShapeRef > shape( (HIShapeRef) hRegion );
	74	m_refData = new wxRegionRefData(shape);
	75	}
	76
	77	wxRegion::wxRegion(long x, long y, long w, long h)
	78	{
	79	m_refData = new wxRegionRefData(x , y , w , h );
	80	}
	81
	82	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
	83	{
	84	m_refData = new wxRegionRefData(topLeft.x , topLeft.y ,
f51afd8f SC	85	bottomRight.x - topLeft.x,
f51afd8f SC	86	bottomRight.y - topLeft.y);
489468fe SC	87	}
	88
	89	wxRegion::wxRegion(const wxRect& rect)
	90	{
	91	m_refData = new wxRegionRefData(rect.x , rect.y , rect.width , rect.height);
	92	}
	93
4e17cf82	94	wxRegion::wxRegion(size_t n, const wxPoint *points, wxPolygonFillMode fillStyle)
489468fe	95	{
4e17cf82 RD	96	// Set the region to a polygon shape generically using a bitmap with the
	97	// polygon drawn on it.
	98
	99	m_refData = new wxRegionRefData();
	100
	101	wxCoord mx = 0;
	102	wxCoord my = 0;
	103	wxPoint p;
	104	size_t idx;
	105
	106	// Find the max size needed to draw the polygon
	107	for (idx=0; idx<n; idx++)
	108	{
	109	wxPoint pt = points[idx];
	110	if (pt.x > mx)
	111	mx = pt.x;
	112	if (pt.y > my)
	113	my = pt.y;
	114	}
	115
	116	// Make the bitmap
	117	wxBitmap bmp(mx, my);
	118	wxMemoryDC dc(bmp);
	119	dc.SetBackground(*wxBLACK_BRUSH);
	120	dc.Clear();
	121	dc.SetPen(*wxWHITE_PEN);
	122	dc.SetBrush(*wxWHITE_BRUSH);
	123	dc.DrawPolygon(n, (wxPoint*)points, 0, 0, fillStyle);
	124	dc.SelectObject(wxNullBitmap);
	125	bmp.SetMask(new wxMask(bmp, *wxBLACK));
	126
	127	// Use it to set this region
	128	Union(bmp);
489468fe SC	129	}
	130
	131	wxRegion::~wxRegion()
	132	{
	133	// m_refData unrefed in ~wxObject
	134	}
	135
	136	wxGDIRefData *wxRegion::CreateGDIRefData() const
	137	{
	138	return new wxRegionRefData;
	139	}
	140
	141	wxGDIRefData wxRegion::CloneGDIRefData(const wxGDIRefData data) const
	142	{
5c33522f	143	return new wxRegionRefData(static_cast<const wxRegionRefData >(data));
489468fe SC	144	}
	145
	146	//-----------------------------------------------------------------------------
	147	//# Modify region
	148	//-----------------------------------------------------------------------------
	149
	150	//! Clear current region
	151	void wxRegion::Clear()
	152	{
	153	UnRef();
	154	}
	155
	156	// Move the region
	157	bool wxRegion::DoOffset(wxCoord x, wxCoord y)
	158	{
dd4eefcb	159	wxCHECK_MSG( m_refData, false, wxT("invalid wxRegion") );
489468fe SC	160
	161	if ( !x && !y )
	162	// nothing to do
	163	return true;
	164
0aab87fd VZ	165	AllocExclusive();
0aab87fd VZ	166
489468fe SC	167	verify_noerr( HIShapeOffset( M_REGION , x , y ) ) ;
	168
	169	return true ;
	170	}
	171
	172
	173	//! Union /e region with this.
	174	bool wxRegion::DoCombine(const wxRegion& region, wxRegionOp op)
	175	{
a1b806b9	176	wxCHECK_MSG( region.IsOk(), false, wxT("invalid wxRegion") );
489468fe	177
265dd232 VZ	178	// Handle the special case of not initialized (e.g. default constructed)
	179	// region as we can't use HIShape functions if we don't have any shape.
	180	if ( !m_refData )
	181	{
	182	switch ( op )
	183	{
	184	case wxRGN_COPY:
	185	case wxRGN_OR:
	186	case wxRGN_XOR:
	187	// These operations make sense with a null region.
	188	*this = region;
	189	return true;
	190
	191	case wxRGN_AND:
	192	case wxRGN_DIFF:
	193	// Those ones don't really make sense so just leave this region
	194	// empty/invalid.
	195	return false;
	196	}
	197
	198	wxFAIL_MSG( wxT("Unknown region operation") );
	199	return false;
	200	}
	201
22aa243d	202	AllocExclusive();
489468fe SC	203
	204	switch (op)
	205	{
	206	case wxRGN_AND:
	207	verify_noerr( HIShapeIntersect( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
	208	break ;
	209
	210	case wxRGN_OR:
	211	verify_noerr( HIShapeUnion( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
	212	break ;
	213
	214	case wxRGN_XOR:
	215	{
	216	// XOR is defined as the difference between union and intersection
	217	wxCFRef< HIShapeRef > unionshape( HIShapeCreateUnion( M_REGION , OTHER_M_REGION(region) ) );
	218	wxCFRef< HIShapeRef > intersectionshape( HIShapeCreateIntersection( M_REGION , OTHER_M_REGION(region) ) );
	219	verify_noerr( HIShapeDifference( unionshape, intersectionshape, M_REGION ) );
	220	}
	221	break ;
	222
	223	case wxRGN_DIFF:
	224	verify_noerr( HIShapeDifference( M_REGION , OTHER_M_REGION(region) , M_REGION ) ) ;
	225	break ;
	226
	227	case wxRGN_COPY:
	228	default:
	229	M_REGION.reset( HIShapeCreateMutableCopy( OTHER_M_REGION(region) ) );
	230	break ;
	231	}
	232
	233	return true;
	234	}
	235
	236	//-----------------------------------------------------------------------------
	237	//# Information on region
	238	//-----------------------------------------------------------------------------
	239
1715d4fe	240	bool wxRegion::DoIsEqual(const wxRegion& region) const
489468fe	241	{
1715d4fe VZ	242	// There doesn't seem to be any native function for checking the equality
	243	// of HIShapes so we compute their differences to determine if they are
	244	// equal.
913bcbfc	245	wxRegion r(*this);
1715d4fe	246	r.Subtract(region);
489468fe	247
1715d4fe VZ	248	if ( !r.IsEmpty() )
	249	return false;
	250
	251	wxRegion r2(region);
	252	r2.Subtract(*this);
	253
	254	return r2.IsEmpty();
489468fe SC	255	}
	256
	257	// Outer bounds of region
	258	bool wxRegion::DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
	259	{
	260	if (m_refData)
	261	{
	262	CGRect box ;
	263	HIShapeGetBounds( M_REGION , &box ) ;
5c33522f VZ	264	x = static_cast<int>(box.origin.x);
	265	y = static_cast<int>(box.origin.y);
	266	w = static_cast<int>(box.size.width);
	267	h = static_cast<int>(box.size.height);
489468fe SC	268
	269	return true;
	270	}
	271	else
	272	{
	273	x = y = w = h = 0;
	274
	275	return false;
	276	}
	277	}
	278
	279	// Is region empty?
	280	bool wxRegion::IsEmpty() const
	281	{
	282	if ( m_refData )
	283	return HIShapeIsEmpty( M_REGION ) ;
	284	else
	285	return true ;
	286	}
	287
7279a306	288	WXHRGN wxRegion::GetWXHRGN() const
489468fe	289	{
00c784a4 VZ	290	if ( !m_refData )
	291	return NULL;
	292
489468fe SC	293	return M_REGION ;
	294	}
	295
	296	//-----------------------------------------------------------------------------
	297	//# Tests
	298	//-----------------------------------------------------------------------------
	299
	300	// Does the region contain the point?
	301	wxRegionContain wxRegion::DoContainsPoint(wxCoord x, wxCoord y) const
	302	{
	303	if (!m_refData)
	304	return wxOutRegion;
	305
81f94bb5	306	CGPoint p = CGPointMake( x, y ) ;
489468fe SC	307	if (HIShapeContainsPoint( M_REGION , &p ) )
	308	return wxInRegion;
	309
	310	return wxOutRegion;
	311	}
	312
	313	// Does the region contain the rectangle (x, y, w, h)?
	314	wxRegionContain wxRegion::DoContainsRect(const wxRect& r) const
	315	{
	316	if (!m_refData)
	317	return wxOutRegion;
	318
	319	CGRect rect = CGRectMake(r.x,r.y,r.width,r.height);
	320	wxCFRef<HIShapeRef> rectshape(HIShapeCreateWithRect(&rect));
	321	wxCFRef<HIShapeRef> intersect(HIShapeCreateIntersection(rectshape,M_REGION));
	322	CGRect bounds;
	323	HIShapeGetBounds(intersect, &bounds);
	324
	325	if ( HIShapeIsRectangular(intersect) && CGRectEqualToRect(rect,bounds) )
	326	return wxInRegion;
	327	else if ( HIShapeIsEmpty( intersect ) )
	328	return wxOutRegion;
	329	else
	330	return wxPartRegion;
	331	}
	332
	333	///////////////////////////////////////////////////////////////////////////////
	334	// //
	335	// wxRegionIterator //
	336	// //
	337	///////////////////////////////////////////////////////////////////////////////
	338
	339	/*!
	340	* Initialize empty iterator
	341	*/
	342	wxRegionIterator::wxRegionIterator()
	343	: m_current(0), m_numRects(0), m_rects(NULL)
	344	{
	345	}
	346
	347	wxRegionIterator::~wxRegionIterator()
	348	{
5276b0a5	349	wxDELETEA(m_rects);
489468fe SC	350	}
	351
	352	wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
	353	: wxObject()
	354	, m_current(iterator.m_current)
	355	, m_numRects(0)
	356	, m_rects(NULL)
	357	{
	358	SetRects(iterator.m_numRects, iterator.m_rects);
	359	}
	360
	361	wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
	362	{
	363	m_current = iterator.m_current;
	364	SetRects(iterator.m_numRects, iterator.m_rects);
	365
	366	return *this;
	367	}
	368
	369	/*!
	370	* Set iterator rects for region
	371	*/
	372	void wxRegionIterator::SetRects(long numRects, wxRect *rects)
	373	{
5276b0a5	374	wxDELETEA(m_rects);
489468fe SC	375
	376	if (rects && (numRects > 0))
	377	{
	378	int i;
	379
	380	m_rects = new wxRect[numRects];
	381	for (i = 0; i < numRects; i++)
	382	m_rects[i] = rects[i];
	383	}
	384
	385	m_numRects = numRects;
	386	}
	387
	388	/*!
	389	* Initialize iterator for region
	390	*/
	391	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	392	{
	393	m_rects = NULL;
	394
	395	Reset(region);
	396	}
	397
	398	/*!
	399	* Reset iterator for a new /e region.
	400	*/
	401
5398a2e0 SC	402	class RegionToRectsCallbackData
	403	{
	404	public :
	405	wxRect* m_rects ;
	406	long m_current ;
	407	};
	408
5398a2e0 SC	409	OSStatus wxOSXRegionToRectsCounterCallback(
	410	int message, HIShapeRef WXUNUSED(region), const CGRect WXUNUSED(rect), void data )
	411	{
	412	long m_numRects = (long) data ;
	413	if ( message == kHIShapeEnumerateInit )
	414	{
	415	(*m_numRects) = 0 ;
	416	}
	417	else if (message == kHIShapeEnumerateRect)
	418	{
	419	(*m_numRects) += 1 ;
	420	}
	421
	422	return noErr;
	423	}
	424
	425	OSStatus wxOSXRegionToRectsSetterCallback(
	426	int message, HIShapeRef WXUNUSED(region), const CGRect rect, void data )
	427	{
	428	if (message == kHIShapeEnumerateRect)
	429	{
	430	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	431	cb->m_rects[cb->m_current++] = wxRect( rect->origin.x , rect->origin.y , rect->size.width , rect->size.height ) ;
	432	}
	433
	434	return noErr;
	435	}
	436
489468fe SC	437	void wxRegionIterator::Reset(const wxRegion& region)
	438	{
	439	m_current = 0;
	440	m_region = region;
	441
5276b0a5	442	wxDELETEA(m_rects);
489468fe SC	443
	444	if (m_region.IsEmpty())
	445	{
	446	m_numRects = 0;
	447	}
	448	else
	449	{
5398a2e0 SC	450	#if 0
5398a2e0 SC	451	// fallback code in case we ever need it again
489468fe SC	452	// copying this to a path and dissecting the path would be an option
	453	m_numRects = 1;
	454	m_rects = new wxRect[m_numRects];
	455	m_rects[0] = m_region.GetBox();
5398a2e0	456	#endif
c0b301f4 SC	457	OSStatus err = HIShapeEnumerate (OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsCounterCallback,
	458	(void*)&m_numRects);
	459	if (err == noErr)
489468fe	460	{
c0b301f4 SC	461	m_rects = new wxRect[m_numRects];
	462	RegionToRectsCallbackData data ;
	463	data.m_rects = m_rects ;
	464	data.m_current = 0 ;
	465	HIShapeEnumerate( OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsSetterCallback,
	466	(void*)&data );
489468fe SC	467	}
	468	else
	469	{
c0b301f4	470	m_numRects = 0;
5398a2e0	471	}
489468fe SC	472	}
	473	}
	474
	475	/*!
	476	* Increment iterator. The rectangle returned is the one after the
	477	* incrementation.
	478	*/
	479	wxRegionIterator& wxRegionIterator::operator ++ ()
	480	{
	481	if (m_current < m_numRects)
	482	++m_current;
	483
	484	return *this;
	485	}
	486
	487	/*!
	488	* Increment iterator. The rectangle returned is the one before the
	489	* incrementation.
	490	*/
	491	wxRegionIterator wxRegionIterator::operator ++ (int)
	492	{
	493	wxRegionIterator previous(*this);
	494
	495	if (m_current < m_numRects)
	496	++m_current;
	497
	498	return previous;
	499	}
	500
	501	long wxRegionIterator::GetX() const
	502	{
	503	if (m_current < m_numRects)
	504	return m_rects[m_current].x;
	505
	506	return 0;
	507	}
	508
	509	long wxRegionIterator::GetY() const
	510	{
	511	if (m_current < m_numRects)
	512	return m_rects[m_current].y;
	513
	514	return 0;
	515	}
	516
	517	long wxRegionIterator::GetW() const
	518	{
	519	if (m_current < m_numRects)
	520	return m_rects[m_current].width ;
	521
	522	return 0;
	523	}
	524
	525	long wxRegionIterator::GetH() const
	526	{
	527	if (m_current < m_numRects)
	528	return m_rects[m_current].height;
	529
	530	return 0;
	531	}
afd5d91c SC	532
afd5d91c SC	533	#endif