[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"
#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
//-----------------------------------------------------------------------------

/*!
 * Create an empty region.
 */
wxRegion::wxRegion()
{
    m_refData = new wxRegionRefData();
}

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 WXUNUSED(fillStyle))
{
    wxUnusedVar(n);
    wxUnusedVar(points);

#if 0
    // no non-QD APIs available
    // TODO : remove ?
    // OS X somehow does not collect the region invisibly as before, so sometimes things
    // get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now

    GWorldPtr gWorld = NULL;
    GWorldPtr oldWorld;
    GDHandle oldGDHandle;
    OSStatus err;
    Rect destRect = { 0, 0, 1, 1 };

    ::GetGWorld( &oldWorld, &oldGDHandle );
    err = ::NewGWorld( &gWorld, 32, &destRect, NULL, NULL, 0 );
    if ( err == noErr )
    {
        ::SetGWorld( gWorld, GetGDevice() );

        OpenRgn();

        wxCoord x1, x2 , y1 , y2 ;
        x2 = x1 = points[0].x ;
        y2 = y1 = points[0].y ;

        ::MoveTo( x1, y1 );
        for (size_t i = 1; i < n; i++)
        {
            x2 = points[i].x ;
            y2 = points[i].y ;
            ::LineTo( x2, y2 );
        }

        // close the polyline if necessary
        if ( x1 != x2 || y1 != y2 )
            ::LineTo( x1, y1 ) ;

        RgnHandle tempRgn = NewRgn();
        CloseRgn( tempRgn ) ;

        ::SetGWorld( oldWorld, oldGDHandle );
        wxCFRef<HIShapeRef> tempShape( HIShapeCreateWithQDRgn(tempRgn ) );
        m_refData = new wxRegionRefData(tempShape);
        DisposeRgn( tempRgn );
    }
    else
    {
        m_refData = new wxRegionRefData;
    }
#else
    wxFAIL_MSG( "not implemented" );
    m_refData = NULL;
#endif
}

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_REGION, 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") );

    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
{
    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 = { 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 ;
};

#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5

OSStatus wxMacRegionToRectsCounterCallback(
    UInt16 message, RgnHandle WXUNUSED(region), const Rect *WXUNUSED(rect), void *data )
{
    long *m_numRects = (long*) data ;
    if ( message == kQDRegionToRectsMsgInit )
    {
        (*m_numRects) = 0 ;
    }
    else if (message == kQDRegionToRectsMsgParse)
    {
        (*m_numRects) += 1 ;
    }

    return noErr;
}

OSStatus wxMacRegionToRectsSetterCallback(
    UInt16 message, RgnHandle WXUNUSED(region), const Rect *rect, void *data )
{
    if (message == kQDRegionToRectsMsgParse)
    {
        RegionToRectsCallbackData *cb = (RegionToRectsCallbackData*) data ;
        cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
    }

    return noErr;
}

#endif

#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5

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;
}

#endif

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

#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
        if ( HIShapeEnumerate != NULL )
        {
            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;
            }
        }
        else
#endif
        {
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
            OSStatus err = noErr;
            RgnHandle rgn = NewRgn();
            HIShapeGetAsQDRgn(OTHER_M_REGION(region), rgn);

            err = QDRegionToRects (rgn, kQDParseRegionFromTopLeft, wxMacRegionToRectsCounterCallback
                , (void*)&m_numRects);
            if (err == noErr)
            {
                m_rects = new wxRect[m_numRects];
                RegionToRectsCallbackData data ;
                data.m_rects = m_rects ;
                data.m_current = 0 ;
                QDRegionToRects( rgn , kQDParseRegionFromTopLeft, wxMacRegionToRectsSetterCallback,
                    (void*)&data );
            }
            else
            {
                m_numRects = 0;
            }
            DisposeRgn( rgn );
#endif
        }
    }
}

/*!
 * 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"
	19	#endif
	20
5398a2e0	21	#include "wx/osx/private.h"
489468fe SC	22
	23	IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject)
	24	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject)
	25
	26	//-----------------------------------------------------------------------------
	27	// wxRegionRefData implementation
	28	//-----------------------------------------------------------------------------
	29
	30	class WXDLLEXPORT wxRegionRefData : public wxGDIRefData
	31	{
	32	public:
	33	wxRegionRefData()
	34	{
	35	m_macRgn.reset( HIShapeCreateMutable() );
	36	}
	37
	38	wxRegionRefData(wxCFRef<HIShapeRef> &region)
	39	{
	40	m_macRgn.reset( HIShapeCreateMutableCopy(region) );
	41	}
	42
	43	wxRegionRefData(long x, long y, long w, long h)
	44	{
	45	CGRect r = CGRectMake(x,y,w,h);
	46	wxCFRef<HIShapeRef> rect(HIShapeCreateWithRect(&r));
	47	m_macRgn.reset( HIShapeCreateMutableCopy(rect) );
	48	}
	49
	50	wxRegionRefData(const wxRegionRefData& data)
	51	: wxGDIRefData()
	52	{
	53	m_macRgn.reset( HIShapeCreateMutableCopy(data.m_macRgn) );
	54	}
	55
	56	virtual ~wxRegionRefData()
	57	{
	58	}
	59
	60	wxCFRef<HIMutableShapeRef> m_macRgn;
	61	};
	62
	63	#define M_REGION (((wxRegionRefData*)m_refData)->m_macRgn)
	64	#define OTHER_M_REGION(a) (((wxRegionRefData*)(a.m_refData))->m_macRgn)
	65
	66	//-----------------------------------------------------------------------------
	67	// wxRegion
	68	//-----------------------------------------------------------------------------
	69
	70	/*!
	71	* Create an empty region.
	72	*/
	73	wxRegion::wxRegion()
	74	{
	75	m_refData = new wxRegionRefData();
	76	}
	77
	78	wxRegion::wxRegion(WXHRGN hRegion )
	79	{
	80	wxCFRef< HIShapeRef > shape( (HIShapeRef) hRegion );
	81	m_refData = new wxRegionRefData(shape);
	82	}
	83
	84	wxRegion::wxRegion(long x, long y, long w, long h)
	85	{
86	m_refData = new wxRegionRefData(x , y , w , h );
87	}
88
89	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
90	{
91	m_refData = new wxRegionRefData(topLeft.x , topLeft.y ,
f51afd8f SC	92	bottomRight.x - topLeft.x,
f51afd8f SC	93	bottomRight.y - topLeft.y);
489468fe SC	94	}
	95
	96	wxRegion::wxRegion(const wxRect& rect)
	97	{
	98	m_refData = new wxRegionRefData(rect.x , rect.y , rect.width , rect.height);
	99	}
	100
1ed06824	101	wxRegion::wxRegion(size_t n, const wxPoint *points, wxPolygonFillMode WXUNUSED(fillStyle))
489468fe SC	102	{
	103	wxUnusedVar(n);
	104	wxUnusedVar(points);
	105
03647350	106	#if 0
5398a2e0 SC	107	// no non-QD APIs available
5398a2e0 SC	108	// TODO : remove ?
489468fe SC	109	// OS X somehow does not collect the region invisibly as before, so sometimes things
	110	// get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now
	111
	112	GWorldPtr gWorld = NULL;
	113	GWorldPtr oldWorld;
	114	GDHandle oldGDHandle;
	115	OSStatus err;
	116	Rect destRect = { 0, 0, 1, 1 };
	117
	118	::GetGWorld( &oldWorld, &oldGDHandle );
	119	err = ::NewGWorld( &gWorld, 32, &destRect, NULL, NULL, 0 );
	120	if ( err == noErr )
	121	{
	122	::SetGWorld( gWorld, GetGDevice() );
	123
	124	OpenRgn();
	125
	126	wxCoord x1, x2 , y1 , y2 ;
	127	x2 = x1 = points[0].x ;
	128	y2 = y1 = points[0].y ;
	129
	130	::MoveTo( x1, y1 );
	131	for (size_t i = 1; i < n; i++)
	132	{
	133	x2 = points[i].x ;
	134	y2 = points[i].y ;
	135	::LineTo( x2, y2 );
	136	}
	137
	138	// close the polyline if necessary
	139	if ( x1 != x2 \|\| y1 != y2 )
	140	::LineTo( x1, y1 ) ;
	141
	142	RgnHandle tempRgn = NewRgn();
	143	CloseRgn( tempRgn ) ;
03647350	144
489468fe SC	145	::SetGWorld( oldWorld, oldGDHandle );
	146	wxCFRef<HIShapeRef> tempShape( HIShapeCreateWithQDRgn(tempRgn ) );
	147	m_refData = new wxRegionRefData(tempShape);
	148	DisposeRgn( tempRgn );
	149	}
	150	else
	151	{
	152	m_refData = new wxRegionRefData;
	153	}
	154	#else
	155	wxFAIL_MSG( "not implemented" );
	156	m_refData = NULL;
	157	#endif
	158	}
	159
	160	wxRegion::~wxRegion()
	161	{
	162	// m_refData unrefed in ~wxObject
	163	}
	164
	165	wxGDIRefData *wxRegion::CreateGDIRefData() const
	166	{
	167	return new wxRegionRefData;
	168	}
	169
	170	wxGDIRefData wxRegion::CloneGDIRefData(const wxGDIRefData data) const
	171	{
5c33522f	172	return new wxRegionRefData(static_cast<const wxRegionRefData >(data));
489468fe SC	173	}
	174
	175	//-----------------------------------------------------------------------------
	176	//# Modify region
	177	//-----------------------------------------------------------------------------
	178
	179	//! Clear current region
	180	void wxRegion::Clear()
	181	{
	182	UnRef();
	183	}
	184
	185	// Move the region
	186	bool wxRegion::DoOffset(wxCoord x, wxCoord y)
	187	{
9a83f860	188	wxCHECK_MSG( M_REGION, false, wxT("invalid wxRegion") );
489468fe SC	189
	190	if ( !x && !y )
	191	// nothing to do
	192	return true;
	193
0aab87fd VZ	194	AllocExclusive();
0aab87fd VZ	195
489468fe SC	196	verify_noerr( HIShapeOffset( M_REGION , x , y ) ) ;
	197
	198	return true ;
	199	}
	200
	201
	202	//! Union /e region with this.
	203	bool wxRegion::DoCombine(const wxRegion& region, wxRegionOp op)
	204	{
a1b806b9	205	wxCHECK_MSG( region.IsOk(), false, wxT("invalid wxRegion") );
489468fe	206
22aa243d	207	AllocExclusive();
489468fe SC	208
	209	switch (op)
	210	{
	211	case wxRGN_AND:
	212	verify_noerr( HIShapeIntersect( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
	213	break ;
	214
	215	case wxRGN_OR:
	216	verify_noerr( HIShapeUnion( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
	217	break ;
	218
	219	case wxRGN_XOR:
	220	{
	221	// XOR is defined as the difference between union and intersection
	222	wxCFRef< HIShapeRef > unionshape( HIShapeCreateUnion( M_REGION , OTHER_M_REGION(region) ) );
	223	wxCFRef< HIShapeRef > intersectionshape( HIShapeCreateIntersection( M_REGION , OTHER_M_REGION(region) ) );
	224	verify_noerr( HIShapeDifference( unionshape, intersectionshape, M_REGION ) );
	225	}
	226	break ;
	227
	228	case wxRGN_DIFF:
	229	verify_noerr( HIShapeDifference( M_REGION , OTHER_M_REGION(region) , M_REGION ) ) ;
	230	break ;
	231
	232	case wxRGN_COPY:
	233	default:
	234	M_REGION.reset( HIShapeCreateMutableCopy( OTHER_M_REGION(region) ) );
	235	break ;
	236	}
	237
	238	return true;
	239	}
	240
	241	//-----------------------------------------------------------------------------
	242	//# Information on region
	243	//-----------------------------------------------------------------------------
	244
1715d4fe	245	bool wxRegion::DoIsEqual(const wxRegion& region) const
489468fe	246	{
1715d4fe VZ	247	// There doesn't seem to be any native function for checking the equality
	248	// of HIShapes so we compute their differences to determine if they are
	249	// equal.
913bcbfc	250	wxRegion r(*this);
1715d4fe	251	r.Subtract(region);
489468fe	252
1715d4fe VZ	253	if ( !r.IsEmpty() )
	254	return false;
	255
	256	wxRegion r2(region);
	257	r2.Subtract(*this);
	258
	259	return r2.IsEmpty();
489468fe SC	260	}
	261
	262	// Outer bounds of region
	263	bool wxRegion::DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
	264	{
	265	if (m_refData)
	266	{
	267	CGRect box ;
	268	HIShapeGetBounds( M_REGION , &box ) ;
5c33522f VZ	269	x = static_cast<int>(box.origin.x);
	270	y = static_cast<int>(box.origin.y);
	271	w = static_cast<int>(box.size.width);
	272	h = static_cast<int>(box.size.height);
489468fe SC	273
	274	return true;
	275	}
	276	else
	277	{
	278	x = y = w = h = 0;
	279
	280	return false;
	281	}
	282	}
	283
	284	// Is region empty?
	285	bool wxRegion::IsEmpty() const
	286	{
	287	if ( m_refData )
	288	return HIShapeIsEmpty( M_REGION ) ;
	289	else
	290	return true ;
	291	}
	292
7279a306	293	WXHRGN wxRegion::GetWXHRGN() const
489468fe SC	294	{
	295	return M_REGION ;
	296	}
	297
	298	//-----------------------------------------------------------------------------
	299	//# Tests
	300	//-----------------------------------------------------------------------------
	301
	302	// Does the region contain the point?
	303	wxRegionContain wxRegion::DoContainsPoint(wxCoord x, wxCoord y) const
	304	{
	305	if (!m_refData)
	306	return wxOutRegion;
	307
e331a94e	308	CGPoint p = { x, y } ;
489468fe SC	309	if (HIShapeContainsPoint( M_REGION , &p ) )
	310	return wxInRegion;
	311
	312	return wxOutRegion;
	313	}
	314
	315	// Does the region contain the rectangle (x, y, w, h)?
	316	wxRegionContain wxRegion::DoContainsRect(const wxRect& r) const
	317	{
	318	if (!m_refData)
	319	return wxOutRegion;
	320
	321	CGRect rect = CGRectMake(r.x,r.y,r.width,r.height);
	322	wxCFRef<HIShapeRef> rectshape(HIShapeCreateWithRect(&rect));
	323	wxCFRef<HIShapeRef> intersect(HIShapeCreateIntersection(rectshape,M_REGION));
	324	CGRect bounds;
	325	HIShapeGetBounds(intersect, &bounds);
	326
	327	if ( HIShapeIsRectangular(intersect) && CGRectEqualToRect(rect,bounds) )
	328	return wxInRegion;
	329	else if ( HIShapeIsEmpty( intersect ) )
	330	return wxOutRegion;
	331	else
	332	return wxPartRegion;
	333	}
	334
	335	///////////////////////////////////////////////////////////////////////////////
	336	// //
	337	// wxRegionIterator //
	338	// //
	339	///////////////////////////////////////////////////////////////////////////////
	340
	341	/*!
	342	* Initialize empty iterator
	343	*/
	344	wxRegionIterator::wxRegionIterator()
	345	: m_current(0), m_numRects(0), m_rects(NULL)
	346	{
	347	}
	348
	349	wxRegionIterator::~wxRegionIterator()
	350	{
5276b0a5	351	wxDELETEA(m_rects);
489468fe SC	352	}
	353
	354	wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
	355	: wxObject()
	356	, m_current(iterator.m_current)
	357	, m_numRects(0)
	358	, m_rects(NULL)
	359	{
	360	SetRects(iterator.m_numRects, iterator.m_rects);
	361	}
	362
	363	wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
	364	{
	365	m_current = iterator.m_current;
	366	SetRects(iterator.m_numRects, iterator.m_rects);
	367
	368	return *this;
	369	}
	370
	371	/*!
	372	* Set iterator rects for region
	373	*/
	374	void wxRegionIterator::SetRects(long numRects, wxRect *rects)
	375	{
5276b0a5	376	wxDELETEA(m_rects);
489468fe SC	377
	378	if (rects && (numRects > 0))
	379	{
	380	int i;
	381
	382	m_rects = new wxRect[numRects];
	383	for (i = 0; i < numRects; i++)
	384	m_rects[i] = rects[i];
	385	}
	386
	387	m_numRects = numRects;
	388	}
	389
	390	/*!
	391	* Initialize iterator for region
	392	*/
	393	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	394	{
	395	m_rects = NULL;
	396
	397	Reset(region);
	398	}
	399
	400	/*!
	401	* Reset iterator for a new /e region.
	402	*/
	403
5398a2e0 SC	404	class RegionToRectsCallbackData
	405	{
	406	public :
	407	wxRect* m_rects ;
	408	long m_current ;
	409	};
	410
	411	#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
	412
489468fe SC	413	OSStatus wxMacRegionToRectsCounterCallback(
	414	UInt16 message, RgnHandle WXUNUSED(region), const Rect WXUNUSED(rect), void data )
	415	{
	416	long m_numRects = (long) data ;
	417	if ( message == kQDRegionToRectsMsgInit )
	418	{
	419	(*m_numRects) = 0 ;
	420	}
	421	else if (message == kQDRegionToRectsMsgParse)
	422	{
	423	(*m_numRects) += 1 ;
	424	}
	425
	426	return noErr;
	427	}
	428
489468fe SC	429	OSStatus wxMacRegionToRectsSetterCallback(
	430	UInt16 message, RgnHandle WXUNUSED(region), const Rect rect, void data )
	431	{
	432	if (message == kQDRegionToRectsMsgParse)
	433	{
	434	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	435	cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
	436	}
	437
	438	return noErr;
	439	}
5398a2e0 SC	440
	441	#endif
	442
	443	#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
	444
	445	OSStatus wxOSXRegionToRectsCounterCallback(
	446	int message, HIShapeRef WXUNUSED(region), const CGRect WXUNUSED(rect), void data )
	447	{
	448	long m_numRects = (long) data ;
	449	if ( message == kHIShapeEnumerateInit )
	450	{
	451	(*m_numRects) = 0 ;
	452	}
	453	else if (message == kHIShapeEnumerateRect)
	454	{
	455	(*m_numRects) += 1 ;
	456	}
	457
	458	return noErr;
	459	}
	460
	461	OSStatus wxOSXRegionToRectsSetterCallback(
	462	int message, HIShapeRef WXUNUSED(region), const CGRect rect, void data )
	463	{
	464	if (message == kHIShapeEnumerateRect)
	465	{
	466	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	467	cb->m_rects[cb->m_current++] = wxRect( rect->origin.x , rect->origin.y , rect->size.width , rect->size.height ) ;
	468	}
	469
	470	return noErr;
	471	}
	472
489468fe SC	473	#endif
	474
	475	void wxRegionIterator::Reset(const wxRegion& region)
	476	{
	477	m_current = 0;
	478	m_region = region;
	479
5276b0a5	480	wxDELETEA(m_rects);
489468fe SC	481
	482	if (m_region.IsEmpty())
	483	{
	484	m_numRects = 0;
	485	}
	486	else
	487	{
5398a2e0 SC	488	#if 0
5398a2e0 SC	489	// fallback code in case we ever need it again
489468fe SC	490	// copying this to a path and dissecting the path would be an option
	491	m_numRects = 1;
	492	m_rects = new wxRect[m_numRects];
	493	m_rects[0] = m_region.GetBox();
5398a2e0	494	#endif
489468fe	495
5398a2e0 SC	496	#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
5398a2e0 SC	497	if ( HIShapeEnumerate != NULL )
489468fe	498	{
03647350	499	OSStatus err = HIShapeEnumerate (OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsCounterCallback,
5398a2e0 SC	500	(void*)&m_numRects);
	501	if (err == noErr)
	502	{
	503	m_rects = new wxRect[m_numRects];
	504	RegionToRectsCallbackData data ;
	505	data.m_rects = m_rects ;
	506	data.m_current = 0 ;
03647350	507	HIShapeEnumerate( OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsSetterCallback,
5398a2e0 SC	508	(void*)&data );
	509	}
	510	else
	511	{
	512	m_numRects = 0;
	513	}
489468fe SC	514	}
489468fe SC	515	else
5398a2e0	516	#endif
489468fe	517	{
5398a2e0 SC	518	#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
	519	OSStatus err = noErr;
	520	RgnHandle rgn = NewRgn();
	521	HIShapeGetAsQDRgn(OTHER_M_REGION(region), rgn);
	522
	523	err = QDRegionToRects (rgn, kQDParseRegionFromTopLeft, wxMacRegionToRectsCounterCallback
	524	, (void*)&m_numRects);
	525	if (err == noErr)
	526	{
	527	m_rects = new wxRect[m_numRects];
	528	RegionToRectsCallbackData data ;
	529	data.m_rects = m_rects ;
	530	data.m_current = 0 ;
03647350	531	QDRegionToRects( rgn , kQDParseRegionFromTopLeft, wxMacRegionToRectsSetterCallback,
5398a2e0 SC	532	(void*)&data );
	533	}
	534	else
	535	{
	536	m_numRects = 0;
	537	}
	538	DisposeRgn( rgn );
489468fe	539	#endif
5398a2e0	540	}
489468fe SC	541	}
	542	}
	543
	544	/*!
	545	* Increment iterator. The rectangle returned is the one after the
	546	* incrementation.
	547	*/
	548	wxRegionIterator& wxRegionIterator::operator ++ ()
	549	{
	550	if (m_current < m_numRects)
	551	++m_current;
	552
	553	return *this;
	554	}
	555
	556	/*!
	557	* Increment iterator. The rectangle returned is the one before the
	558	* incrementation.
	559	*/
	560	wxRegionIterator wxRegionIterator::operator ++ (int)
	561	{
	562	wxRegionIterator previous(*this);
	563
	564	if (m_current < m_numRects)
	565	++m_current;
	566
	567	return previous;
	568	}
	569
	570	long wxRegionIterator::GetX() const
	571	{
	572	if (m_current < m_numRects)
	573	return m_rects[m_current].x;
	574
	575	return 0;
	576	}
	577
	578	long wxRegionIterator::GetY() const
	579	{
	580	if (m_current < m_numRects)
	581	return m_rects[m_current].y;
	582
	583	return 0;
	584	}
	585
	586	long wxRegionIterator::GetW() const
	587	{
	588	if (m_current < m_numRects)
	589	return m_rects[m_current].width ;
	590
	591	return 0;
	592	}
	593
	594	long wxRegionIterator::GetH() const
	595	{
	596	if (m_current < m_numRects)
	597	return m_rects[m_current].height;
	598
	599	return 0;
	600	}
afd5d91c SC	601
afd5d91c SC	602	#endif