[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
//-----------------------------------------------------------------------------

/*!
 * 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"
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
	71	/*!
	72	* Create an empty region.
	73	*/
	74	wxRegion::wxRegion()
	75	{
	76	m_refData = new wxRegionRefData();
	77	}
	78
	79	wxRegion::wxRegion(WXHRGN hRegion )
	80	{
	81	wxCFRef< HIShapeRef > shape( (HIShapeRef) hRegion );
	82	m_refData = new wxRegionRefData(shape);
	83	}
	84
	85	wxRegion::wxRegion(long x, long y, long w, long h)
	86	{
87	m_refData = new wxRegionRefData(x , y , w , h );
88	}
89
90	wxRegion::wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
91	{
92	m_refData = new wxRegionRefData(topLeft.x , topLeft.y ,
f51afd8f SC	93	bottomRight.x - topLeft.x,
f51afd8f SC	94	bottomRight.y - topLeft.y);
489468fe SC	95	}
	96
	97	wxRegion::wxRegion(const wxRect& rect)
	98	{
	99	m_refData = new wxRegionRefData(rect.x , rect.y , rect.width , rect.height);
	100	}
	101
1ed06824	102	wxRegion::wxRegion(size_t n, const wxPoint *points, wxPolygonFillMode WXUNUSED(fillStyle))
489468fe SC	103	{
	104	wxUnusedVar(n);
	105	wxUnusedVar(points);
	106
03647350	107	#if 0
5398a2e0 SC	108	// no non-QD APIs available
5398a2e0 SC	109	// TODO : remove ?
489468fe SC	110	// OS X somehow does not collect the region invisibly as before, so sometimes things
	111	// get drawn on screen instead of just being combined into a region, therefore we allocate a temp gworld now
	112
	113	GWorldPtr gWorld = NULL;
	114	GWorldPtr oldWorld;
	115	GDHandle oldGDHandle;
	116	OSStatus err;
	117	Rect destRect = { 0, 0, 1, 1 };
	118
	119	::GetGWorld( &oldWorld, &oldGDHandle );
	120	err = ::NewGWorld( &gWorld, 32, &destRect, NULL, NULL, 0 );
	121	if ( err == noErr )
	122	{
	123	::SetGWorld( gWorld, GetGDevice() );
	124
	125	OpenRgn();
	126
	127	wxCoord x1, x2 , y1 , y2 ;
	128	x2 = x1 = points[0].x ;
	129	y2 = y1 = points[0].y ;
	130
	131	::MoveTo( x1, y1 );
	132	for (size_t i = 1; i < n; i++)
	133	{
	134	x2 = points[i].x ;
	135	y2 = points[i].y ;
	136	::LineTo( x2, y2 );
	137	}
	138
	139	// close the polyline if necessary
	140	if ( x1 != x2 \|\| y1 != y2 )
	141	::LineTo( x1, y1 ) ;
	142
	143	RgnHandle tempRgn = NewRgn();
	144	CloseRgn( tempRgn ) ;
03647350	145
489468fe SC	146	::SetGWorld( oldWorld, oldGDHandle );
	147	wxCFRef<HIShapeRef> tempShape( HIShapeCreateWithQDRgn(tempRgn ) );
	148	m_refData = new wxRegionRefData(tempShape);
	149	DisposeRgn( tempRgn );
	150	}
	151	else
	152	{
	153	m_refData = new wxRegionRefData;
	154	}
	155	#else
	156	wxFAIL_MSG( "not implemented" );
	157	m_refData = NULL;
	158	#endif
	159	}
	160
	161	wxRegion::~wxRegion()
	162	{
	163	// m_refData unrefed in ~wxObject
	164	}
	165
	166	wxGDIRefData *wxRegion::CreateGDIRefData() const
	167	{
	168	return new wxRegionRefData;
	169	}
	170
	171	wxGDIRefData wxRegion::CloneGDIRefData(const wxGDIRefData data) const
	172	{
5c33522f	173	return new wxRegionRefData(static_cast<const wxRegionRefData >(data));
489468fe SC	174	}
	175
	176	//-----------------------------------------------------------------------------
	177	//# Modify region
	178	//-----------------------------------------------------------------------------
	179
	180	//! Clear current region
	181	void wxRegion::Clear()
	182	{
	183	UnRef();
	184	}
	185
	186	// Move the region
	187	bool wxRegion::DoOffset(wxCoord x, wxCoord y)
	188	{
9a83f860	189	wxCHECK_MSG( M_REGION, false, wxT("invalid wxRegion") );
489468fe SC	190
	191	if ( !x && !y )
	192	// nothing to do
	193	return true;
	194
0aab87fd VZ	195	AllocExclusive();
0aab87fd VZ	196
489468fe SC	197	verify_noerr( HIShapeOffset( M_REGION , x , y ) ) ;
	198
	199	return true ;
	200	}
	201
	202
	203	//! Union /e region with this.
	204	bool wxRegion::DoCombine(const wxRegion& region, wxRegionOp op)
	205	{
a1b806b9	206	wxCHECK_MSG( region.IsOk(), false, wxT("invalid wxRegion") );
489468fe	207
22aa243d	208	AllocExclusive();
489468fe SC	209
	210	switch (op)
	211	{
	212	case wxRGN_AND:
	213	verify_noerr( HIShapeIntersect( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
	214	break ;
	215
	216	case wxRGN_OR:
	217	verify_noerr( HIShapeUnion( M_REGION , OTHER_M_REGION(region) , M_REGION ) );
	218	break ;
	219
	220	case wxRGN_XOR:
	221	{
	222	// XOR is defined as the difference between union and intersection
	223	wxCFRef< HIShapeRef > unionshape( HIShapeCreateUnion( M_REGION , OTHER_M_REGION(region) ) );
	224	wxCFRef< HIShapeRef > intersectionshape( HIShapeCreateIntersection( M_REGION , OTHER_M_REGION(region) ) );
	225	verify_noerr( HIShapeDifference( unionshape, intersectionshape, M_REGION ) );
	226	}
	227	break ;
	228
	229	case wxRGN_DIFF:
	230	verify_noerr( HIShapeDifference( M_REGION , OTHER_M_REGION(region) , M_REGION ) ) ;
	231	break ;
	232
	233	case wxRGN_COPY:
	234	default:
	235	M_REGION.reset( HIShapeCreateMutableCopy( OTHER_M_REGION(region) ) );
	236	break ;
	237	}
	238
	239	return true;
	240	}
	241
	242	//-----------------------------------------------------------------------------
	243	//# Information on region
	244	//-----------------------------------------------------------------------------
	245
1715d4fe	246	bool wxRegion::DoIsEqual(const wxRegion& region) const
489468fe	247	{
1715d4fe VZ	248	// There doesn't seem to be any native function for checking the equality
	249	// of HIShapes so we compute their differences to determine if they are
	250	// equal.
913bcbfc	251	wxRegion r(*this);
1715d4fe	252	r.Subtract(region);
489468fe	253
1715d4fe VZ	254	if ( !r.IsEmpty() )
	255	return false;
	256
	257	wxRegion r2(region);
	258	r2.Subtract(*this);
	259
	260	return r2.IsEmpty();
489468fe SC	261	}
	262
	263	// Outer bounds of region
	264	bool wxRegion::DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const
	265	{
	266	if (m_refData)
	267	{
	268	CGRect box ;
	269	HIShapeGetBounds( M_REGION , &box ) ;
5c33522f VZ	270	x = static_cast<int>(box.origin.x);
	271	y = static_cast<int>(box.origin.y);
	272	w = static_cast<int>(box.size.width);
	273	h = static_cast<int>(box.size.height);
489468fe SC	274
	275	return true;
	276	}
	277	else
	278	{
	279	x = y = w = h = 0;
	280
	281	return false;
	282	}
	283	}
	284
	285	// Is region empty?
	286	bool wxRegion::IsEmpty() const
	287	{
	288	if ( m_refData )
	289	return HIShapeIsEmpty( M_REGION ) ;
	290	else
	291	return true ;
	292	}
	293
7279a306	294	WXHRGN wxRegion::GetWXHRGN() const
489468fe SC	295	{
	296	return M_REGION ;
	297	}
	298
	299	//-----------------------------------------------------------------------------
	300	//# Tests
	301	//-----------------------------------------------------------------------------
	302
	303	// Does the region contain the point?
	304	wxRegionContain wxRegion::DoContainsPoint(wxCoord x, wxCoord y) const
	305	{
	306	if (!m_refData)
	307	return wxOutRegion;
	308
e331a94e	309	CGPoint p = { x, y } ;
489468fe SC	310	if (HIShapeContainsPoint( M_REGION , &p ) )
	311	return wxInRegion;
	312
	313	return wxOutRegion;
	314	}
	315
	316	// Does the region contain the rectangle (x, y, w, h)?
	317	wxRegionContain wxRegion::DoContainsRect(const wxRect& r) const
	318	{
	319	if (!m_refData)
	320	return wxOutRegion;
	321
	322	CGRect rect = CGRectMake(r.x,r.y,r.width,r.height);
	323	wxCFRef<HIShapeRef> rectshape(HIShapeCreateWithRect(&rect));
	324	wxCFRef<HIShapeRef> intersect(HIShapeCreateIntersection(rectshape,M_REGION));
	325	CGRect bounds;
	326	HIShapeGetBounds(intersect, &bounds);
	327
	328	if ( HIShapeIsRectangular(intersect) && CGRectEqualToRect(rect,bounds) )
	329	return wxInRegion;
	330	else if ( HIShapeIsEmpty( intersect ) )
	331	return wxOutRegion;
	332	else
	333	return wxPartRegion;
	334	}
	335
	336	///////////////////////////////////////////////////////////////////////////////
	337	// //
	338	// wxRegionIterator //
	339	// //
	340	///////////////////////////////////////////////////////////////////////////////
	341
	342	/*!
	343	* Initialize empty iterator
	344	*/
	345	wxRegionIterator::wxRegionIterator()
	346	: m_current(0), m_numRects(0), m_rects(NULL)
	347	{
	348	}
	349
	350	wxRegionIterator::~wxRegionIterator()
	351	{
5276b0a5	352	wxDELETEA(m_rects);
489468fe SC	353	}
	354
	355	wxRegionIterator::wxRegionIterator(const wxRegionIterator& iterator)
	356	: wxObject()
	357	, m_current(iterator.m_current)
	358	, m_numRects(0)
	359	, m_rects(NULL)
	360	{
	361	SetRects(iterator.m_numRects, iterator.m_rects);
	362	}
	363
	364	wxRegionIterator& wxRegionIterator::operator=(const wxRegionIterator& iterator)
	365	{
	366	m_current = iterator.m_current;
	367	SetRects(iterator.m_numRects, iterator.m_rects);
	368
	369	return *this;
	370	}
	371
	372	/*!
	373	* Set iterator rects for region
	374	*/
	375	void wxRegionIterator::SetRects(long numRects, wxRect *rects)
	376	{
5276b0a5	377	wxDELETEA(m_rects);
489468fe SC	378
	379	if (rects && (numRects > 0))
	380	{
	381	int i;
	382
	383	m_rects = new wxRect[numRects];
	384	for (i = 0; i < numRects; i++)
	385	m_rects[i] = rects[i];
	386	}
	387
	388	m_numRects = numRects;
	389	}
	390
	391	/*!
	392	* Initialize iterator for region
	393	*/
	394	wxRegionIterator::wxRegionIterator(const wxRegion& region)
	395	{
	396	m_rects = NULL;
	397
	398	Reset(region);
	399	}
	400
	401	/*!
	402	* Reset iterator for a new /e region.
	403	*/
	404
5398a2e0 SC	405	class RegionToRectsCallbackData
	406	{
	407	public :
	408	wxRect* m_rects ;
	409	long m_current ;
	410	};
	411
	412	#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
	413
489468fe SC	414	OSStatus wxMacRegionToRectsCounterCallback(
	415	UInt16 message, RgnHandle WXUNUSED(region), const Rect WXUNUSED(rect), void data )
	416	{
	417	long m_numRects = (long) data ;
	418	if ( message == kQDRegionToRectsMsgInit )
	419	{
	420	(*m_numRects) = 0 ;
	421	}
	422	else if (message == kQDRegionToRectsMsgParse)
	423	{
	424	(*m_numRects) += 1 ;
	425	}
	426
	427	return noErr;
	428	}
	429
489468fe SC	430	OSStatus wxMacRegionToRectsSetterCallback(
	431	UInt16 message, RgnHandle WXUNUSED(region), const Rect rect, void data )
	432	{
	433	if (message == kQDRegionToRectsMsgParse)
	434	{
	435	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	436	cb->m_rects[cb->m_current++] = wxRect( rect->left , rect->top , rect->right - rect->left , rect->bottom - rect->top ) ;
	437	}
	438
	439	return noErr;
	440	}
5398a2e0 SC	441
	442	#endif
	443
	444	#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
	445
	446	OSStatus wxOSXRegionToRectsCounterCallback(
	447	int message, HIShapeRef WXUNUSED(region), const CGRect WXUNUSED(rect), void data )
	448	{
	449	long m_numRects = (long) data ;
	450	if ( message == kHIShapeEnumerateInit )
	451	{
	452	(*m_numRects) = 0 ;
	453	}
	454	else if (message == kHIShapeEnumerateRect)
	455	{
	456	(*m_numRects) += 1 ;
	457	}
	458
	459	return noErr;
	460	}
	461
	462	OSStatus wxOSXRegionToRectsSetterCallback(
	463	int message, HIShapeRef WXUNUSED(region), const CGRect rect, void data )
	464	{
	465	if (message == kHIShapeEnumerateRect)
	466	{
	467	RegionToRectsCallbackData cb = (RegionToRectsCallbackData) data ;
	468	cb->m_rects[cb->m_current++] = wxRect( rect->origin.x , rect->origin.y , rect->size.width , rect->size.height ) ;
	469	}
	470
	471	return noErr;
	472	}
	473
489468fe SC	474	#endif
	475
	476	void wxRegionIterator::Reset(const wxRegion& region)
	477	{
	478	m_current = 0;
	479	m_region = region;
	480
5276b0a5	481	wxDELETEA(m_rects);
489468fe SC	482
	483	if (m_region.IsEmpty())
	484	{
	485	m_numRects = 0;
	486	}
	487	else
	488	{
5398a2e0 SC	489	#if 0
5398a2e0 SC	490	// fallback code in case we ever need it again
489468fe SC	491	// copying this to a path and dissecting the path would be an option
	492	m_numRects = 1;
	493	m_rects = new wxRect[m_numRects];
	494	m_rects[0] = m_region.GetBox();
5398a2e0	495	#endif
489468fe	496
5398a2e0 SC	497	#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
5398a2e0 SC	498	if ( HIShapeEnumerate != NULL )
489468fe	499	{
03647350	500	OSStatus err = HIShapeEnumerate (OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsCounterCallback,
5398a2e0 SC	501	(void*)&m_numRects);
	502	if (err == noErr)
	503	{
	504	m_rects = new wxRect[m_numRects];
	505	RegionToRectsCallbackData data ;
	506	data.m_rects = m_rects ;
	507	data.m_current = 0 ;
03647350	508	HIShapeEnumerate( OTHER_M_REGION(region), kHIShapeParseFromTopLeft, wxOSXRegionToRectsSetterCallback,
5398a2e0 SC	509	(void*)&data );
	510	}
	511	else
	512	{
	513	m_numRects = 0;
	514	}
489468fe SC	515	}
489468fe SC	516	else
5398a2e0	517	#endif
489468fe	518	{
5398a2e0 SC	519	#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
	520	OSStatus err = noErr;
	521	RgnHandle rgn = NewRgn();
	522	HIShapeGetAsQDRgn(OTHER_M_REGION(region), rgn);
	523
	524	err = QDRegionToRects (rgn, kQDParseRegionFromTopLeft, wxMacRegionToRectsCounterCallback
	525	, (void*)&m_numRects);
	526	if (err == noErr)
	527	{
	528	m_rects = new wxRect[m_numRects];
	529	RegionToRectsCallbackData data ;
	530	data.m_rects = m_rects ;
	531	data.m_current = 0 ;
03647350	532	QDRegionToRects( rgn , kQDParseRegionFromTopLeft, wxMacRegionToRectsSetterCallback,
5398a2e0 SC	533	(void*)&data );
	534	}
	535	else
	536	{
	537	m_numRects = 0;
	538	}
	539	DisposeRgn( rgn );
489468fe	540	#endif
5398a2e0	541	}
489468fe SC	542	}
	543	}
	544
	545	/*!
	546	* Increment iterator. The rectangle returned is the one after the
	547	* incrementation.
	548	*/
	549	wxRegionIterator& wxRegionIterator::operator ++ ()
	550	{
	551	if (m_current < m_numRects)
	552	++m_current;
	553
	554	return *this;
	555	}
	556
	557	/*!
	558	* Increment iterator. The rectangle returned is the one before the
	559	* incrementation.
	560	*/
	561	wxRegionIterator wxRegionIterator::operator ++ (int)
	562	{
	563	wxRegionIterator previous(*this);
	564
	565	if (m_current < m_numRects)
	566	++m_current;
	567
	568	return previous;
	569	}
	570
	571	long wxRegionIterator::GetX() const
	572	{
	573	if (m_current < m_numRects)
	574	return m_rects[m_current].x;
	575
	576	return 0;
	577	}
	578
	579	long wxRegionIterator::GetY() const
	580	{
	581	if (m_current < m_numRects)
	582	return m_rects[m_current].y;
	583
	584	return 0;
	585	}
	586
	587	long wxRegionIterator::GetW() const
	588	{
	589	if (m_current < m_numRects)
	590	return m_rects[m_current].width ;
	591
	592	return 0;
	593	}
	594
	595	long wxRegionIterator::GetH() const
	596	{
	597	if (m_current < m_numRects)
	598	return m_rects[m_current].height;
	599
	600	return 0;
	601	}
afd5d91c SC	602
afd5d91c SC	603	#endif