src/gtk/region.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        gtk/region.cpp
// Purpose:
// Author:      Robert Roebling
// Id:          $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

#include "wx/region.h"

#include <gdk/gdk.h>
#include <gtk/gtk.h>

// Unfortunately the new way of implementing the region iterator
// doesn't work with GTK+ 2.0 or above (can't access a Region in
// GdkPrivateRegion)
#ifdef __WXGTK20__
#define OLDCODE 1
#else
#define OLDCODE 0
#endif

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

class wxRegionRefData: public wxObjectRefData
{
public:
    wxRegionRefData();
    ~wxRegionRefData();

    GdkRegion  *m_region;
#if OLDCODE
    wxList      m_rects;
#endif
};

wxRegionRefData::wxRegionRefData()
{
    m_region = (GdkRegion *) NULL;
}

wxRegionRefData::~wxRegionRefData()
{
    if (m_region) gdk_region_destroy( m_region );

#if OLDCODE
    wxNode *node = m_rects.First();
    while (node)
    {
        wxRect *r = (wxRect*)node->Data();
        delete r;
        node = node->Next();
    }
#endif
}

//-----------------------------------------------------------------------------

#define M_REGIONDATA ((wxRegionRefData *)m_refData)

IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);

wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
{
    m_refData = new wxRegionRefData();
    GdkRegion *reg = gdk_region_new();
    GdkRectangle rect;
    rect.x = x;
    rect.y = y;
    rect.width = w;
    rect.height = h;
#ifdef __WXGTK20__
    gdk_region_union_with_rect( reg, &rect );
    M_REGIONDATA->m_region = reg;
#else
    M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
    gdk_region_destroy( reg );
#endif
#if OLDCODE
    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) );
#endif
}

wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
{
    m_refData = new wxRegionRefData();
    GdkRegion *reg = gdk_region_new();
    GdkRectangle rect;
    rect.x = topLeft.x;
    rect.y = topLeft.y;
    rect.width = bottomRight.x - rect.x;
    rect.height = bottomRight.y - rect.y;
#ifdef __WXGTK20__
    gdk_region_union_with_rect( reg, &rect );
    M_REGIONDATA->m_region = reg;
#else
    M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
    gdk_region_destroy( reg );
#endif
#if OLDCODE
    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) );
#endif
}

wxRegion::wxRegion( const wxRect& rect )
{
    m_refData = new wxRegionRefData();
    GdkRegion *reg = gdk_region_new();
    GdkRectangle g_rect;
    g_rect.x = rect.x;
    g_rect.y = rect.y;
    g_rect.width = rect.width;
    g_rect.height = rect.height;
#ifdef __WXGTK20__
    gdk_region_union_with_rect( reg, &g_rect );
    M_REGIONDATA->m_region = reg;
#else
    M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
    gdk_region_destroy( reg );
#endif
#if OLDCODE
    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
#endif
}

wxRegion::wxRegion()
{
}

wxRegion::~wxRegion()
{
}

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

bool wxRegion::operator != ( const wxRegion& region )
{
    return m_refData != region.m_refData;
}

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

bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    GdkRectangle rect;
    rect.x = x;
    rect.y = y;
    rect.width = width;
    rect.height = height;
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        GdkRegion *reg = gdk_region_new();
#ifdef __WXGTK20__
        gdk_region_union_with_rect( reg, &rect );
        M_REGIONDATA->m_region = reg;
#else
        M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
        gdk_region_destroy( reg );
#endif
    }
    else
    {
#ifdef __WXGTK20__
        gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
#else
        GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
        gdk_region_destroy( M_REGIONDATA->m_region );
        M_REGIONDATA->m_region = reg;
#endif
    }

#if OLDCODE
    M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
#endif

    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 = gdk_region_new();
    }

#ifdef __WXGTK20__
    gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
#else
    GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() );
    gdk_region_destroy( M_REGIONDATA->m_region );
    M_REGIONDATA->m_region = reg;
#endif

#if OLDCODE
    wxNode *node = region.GetRectList()->First();
    while (node)
    {
        wxRect *r = (wxRect*)node->Data();
        M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
        node = node->Next();
    }
#endif

    return TRUE;
}

bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }

    wxRegion reg( x, y, width, height );
    Intersect( reg );
    return TRUE;
}

bool wxRegion::Intersect( const wxRect& rect )
{
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }

    wxRegion reg( rect );
    Intersect( reg );
    return TRUE;
}

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

    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
        return TRUE;
    }

#ifdef __WXGTK20__
    gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() );
#else
    GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() );
    gdk_region_destroy( M_REGIONDATA->m_region );
    M_REGIONDATA->m_region = reg;
#endif
    return TRUE;
}

bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }

    wxRegion reg( x, y, width, height );
    Subtract( reg );
    return TRUE;
}

bool wxRegion::Subtract( const wxRect& rect )
{
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }

    wxRegion reg( rect );
    Subtract( reg );
    return TRUE;
}

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

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

#ifdef __WXGTK20__
    gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
#else
    GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() );
    gdk_region_destroy( M_REGIONDATA->m_region );
    M_REGIONDATA->m_region = reg;
#endif
    return TRUE;
}

bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
{
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }

    wxRegion reg( x, y, width, height );
    Xor( reg );
    return TRUE;
}

bool wxRegion::Xor( const wxRect& rect )
{
    if (!m_refData)
    {
        m_refData = new wxRegionRefData();
        M_REGIONDATA->m_region = gdk_region_new();
    }

    wxRegion reg( rect );
    Xor( reg );
    return TRUE;
}

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

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

#ifdef __WXGTK20__
    gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
#else
    GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() );
    gdk_region_destroy( M_REGIONDATA->m_region );
    M_REGIONDATA->m_region = reg;
#endif

#if OLDCODE
    wxNode *node = region.GetRectList()->First();
    while (node)
    {
        wxRect *r = (wxRect*)node->Data();
        M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
        node = node->Next();
    }
#endif

    return TRUE;
}

void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
{
    x = 0;
    y = 0;
    w = -1;
    h = -1;
    if (!m_refData)
        return;

    GdkRectangle rect;
    gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect );
    x = rect.x;
    y = rect.y;
    w = rect.width;
    h = rect.height;
}

wxRect wxRegion::GetBox() const
{
    wxCoord x = 0;
    wxCoord y = 0;
    wxCoord w = -1;
    wxCoord h = -1;
    GetBox( x, y, w, h );
    return wxRect( x, y, w, h );
}

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

    return gdk_region_empty( M_REGIONDATA->m_region );
}

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

    if (gdk_region_point_in( 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;

    GdkRectangle rect;
    rect.x = x;
    rect.y = y;
    rect.width = w;
    rect.height = h;
    GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect );
    switch (res)
    {
        case GDK_OVERLAP_RECTANGLE_IN:   return wxInRegion;
        case GDK_OVERLAP_RECTANGLE_OUT:  return wxOutRegion;
        case GDK_OVERLAP_RECTANGLE_PART: 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 );
}

GdkRegion *wxRegion::GetRegion() const
{
    if (!m_refData)
        return (GdkRegion*) NULL;

    return M_REGIONDATA->m_region;
}

wxList *wxRegion::GetRectList() const
{
#if OLDCODE
    if (!m_refData)
        return (wxList*) NULL;

    return &(M_REGIONDATA->m_rects);
#else
    return (wxList*) NULL;
#endif
}

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

#if OLDCODE

IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);

wxRegionIterator::wxRegionIterator()
{
    Reset();
}

wxRegionIterator::wxRegionIterator( const wxRegion& region )
{
    Reset(region);
}

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

wxRegionIterator::operator bool () const
{
    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
}

bool wxRegionIterator::HaveRects() const
{
    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
}

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

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

wxCoord wxRegionIterator::GetX() const
{
    wxNode *node = m_region.GetRectList()->Nth( m_current );
    if (!node) return 0;
    wxRect *r = (wxRect*)node->Data();
    return r->x;
}

wxCoord wxRegionIterator::GetY() const
{
    wxNode *node = m_region.GetRectList()->Nth( m_current );
    if (!node) return 0;
    wxRect *r = (wxRect*)node->Data();
    return r->y;
}

wxCoord wxRegionIterator::GetW() const
{
    wxNode *node = m_region.GetRectList()->Nth( m_current );
    if (!node) return 0;
    wxRect *r = (wxRect*)node->Data();
    return r->width;
}

wxCoord wxRegionIterator::GetH() const
{
    wxNode *node = m_region.GetRectList()->Nth( m_current );
    if (!node) return 0;
    wxRect *r = (wxRect*)node->Data();
    return r->height;
}

#else

// 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;
}

#include <gdk/gdkprivate.h>

void wxRIRefData::CreateRects( const wxRegion& region )
{
  if( m_rects )
    delete m_rects;
  m_rects   = 0;
  m_numRects= 0;
  GdkRegion *gdkregion= region.GetRegion();
  if( gdkregion ){
    Region r= ((GdkRegionPrivate *)gdkregion)->xregion;
    if( r ){
      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;
        }
      }
    }
  }
}

IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);

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;
}

#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: gtk/region.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// Id: $Id$
	6	// Copyright: (c) 1998 Robert Roebling
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation "region.h"
	12	#endif
	13
	14	#include "wx/region.h"
	15
	16	#include <gdk/gdk.h>
	17	#include <gtk/gtk.h>
	18
	19	// Unfortunately the new way of implementing the region iterator
	20	// doesn't work with GTK+ 2.0 or above (can't access a Region in
	21	// GdkPrivateRegion)
	22	#ifdef __WXGTK20__
	23	#define OLDCODE 1
	24	#else
	25	#define OLDCODE 0
	26	#endif
	27
	28	//-----------------------------------------------------------------------------
	29	// wxRegion
	30	//-----------------------------------------------------------------------------
	31
	32	class wxRegionRefData: public wxObjectRefData
	33	{
	34	public:
	35	wxRegionRefData();
	36	~wxRegionRefData();
	37
	38	GdkRegion *m_region;
	39	#if OLDCODE
	40	wxList m_rects;
	41	#endif
	42	};
	43
	44	wxRegionRefData::wxRegionRefData()
	45	{
	46	m_region = (GdkRegion *) NULL;
	47	}
	48
	49	wxRegionRefData::~wxRegionRefData()
	50	{
	51	if (m_region) gdk_region_destroy( m_region );
	52
	53	#if OLDCODE
	54	wxNode *node = m_rects.First();
	55	while (node)
	56	{
	57	wxRect r = (wxRect)node->Data();
	58	delete r;
	59	node = node->Next();
	60	}
	61	#endif
	62	}
	63
	64	//-----------------------------------------------------------------------------
	65
	66	#define M_REGIONDATA ((wxRegionRefData *)m_refData)
	67
	68	IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);
	69
	70	wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
	71	{
	72	m_refData = new wxRegionRefData();
	73	GdkRegion *reg = gdk_region_new();
	74	GdkRectangle rect;
	75	rect.x = x;
	76	rect.y = y;
	77	rect.width = w;
	78	rect.height = h;
	79	#ifdef __WXGTK20__
	80	gdk_region_union_with_rect( reg, &rect );
	81	M_REGIONDATA->m_region = reg;
	82	#else
	83	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
	84	gdk_region_destroy( reg );
	85	#endif
	86	#if OLDCODE
	87	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) );
	88	#endif
	89	}
	90
	91	wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
	92	{
	93	m_refData = new wxRegionRefData();
	94	GdkRegion *reg = gdk_region_new();
	95	GdkRectangle rect;
	96	rect.x = topLeft.x;
	97	rect.y = topLeft.y;
	98	rect.width = bottomRight.x - rect.x;
	99	rect.height = bottomRight.y - rect.y;
	100	#ifdef __WXGTK20__
	101	gdk_region_union_with_rect( reg, &rect );
	102	M_REGIONDATA->m_region = reg;
	103	#else
	104	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
	105	gdk_region_destroy( reg );
	106	#endif
	107	#if OLDCODE
	108	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) );
	109	#endif
	110	}
	111
	112	wxRegion::wxRegion( const wxRect& rect )
	113	{
	114	m_refData = new wxRegionRefData();
	115	GdkRegion *reg = gdk_region_new();
	116	GdkRectangle g_rect;
	117	g_rect.x = rect.x;
	118	g_rect.y = rect.y;
	119	g_rect.width = rect.width;
	120	g_rect.height = rect.height;
	121	#ifdef __WXGTK20__
	122	gdk_region_union_with_rect( reg, &g_rect );
	123	M_REGIONDATA->m_region = reg;
	124	#else
	125	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
	126	gdk_region_destroy( reg );
	127	#endif
	128	#if OLDCODE
	129	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
	130	#endif
	131	}
	132
	133	wxRegion::wxRegion()
	134	{
	135	}
	136
	137	wxRegion::~wxRegion()
	138	{
	139	}
	140
	141	bool wxRegion::operator == ( const wxRegion& region )
	142	{
	143	return m_refData == region.m_refData;
	144	}
	145
	146	bool wxRegion::operator != ( const wxRegion& region )
	147	{
	148	return m_refData != region.m_refData;
	149	}
	150
	151	void wxRegion::Clear()
	152	{
	153	UnRef();
	154	}
	155
	156	bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	157	{
	158	GdkRectangle rect;
	159	rect.x = x;
	160	rect.y = y;
	161	rect.width = width;
	162	rect.height = height;
	163	if (!m_refData)
	164	{
	165	m_refData = new wxRegionRefData();
	166	GdkRegion *reg = gdk_region_new();
	167	#ifdef __WXGTK20__
	168	gdk_region_union_with_rect( reg, &rect );
	169	M_REGIONDATA->m_region = reg;
	170	#else
	171	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
	172	gdk_region_destroy( reg );
	173	#endif
	174	}
	175	else
	176	{
	177	#ifdef __WXGTK20__
	178	gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
	179	#else
	180	GdkRegion *reg = gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
	181	gdk_region_destroy( M_REGIONDATA->m_region );
	182	M_REGIONDATA->m_region = reg;
	183	#endif
	184	}
	185
	186	#if OLDCODE
	187	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
	188	#endif
	189
	190	return TRUE;
	191	}
	192
	193	bool wxRegion::Union( const wxRect& rect )
	194	{
	195	return Union( rect.x, rect.y, rect.width, rect.height );
	196	}
	197
	198	bool wxRegion::Union( const wxRegion& region )
	199	{
	200	if (region.IsNull())
	201	return FALSE;
	202
	203	if (!m_refData)
	204	{
	205	m_refData = new wxRegionRefData();
	206	M_REGIONDATA->m_region = gdk_region_new();
	207	}
	208
	209	#ifdef __WXGTK20__
	210	gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
	211	#else
	212	GdkRegion *reg = gdk_regions_union( M_REGIONDATA->m_region, region.GetRegion() );
	213	gdk_region_destroy( M_REGIONDATA->m_region );
	214	M_REGIONDATA->m_region = reg;
	215	#endif
	216
	217	#if OLDCODE
	218	wxNode *node = region.GetRectList()->First();
	219	while (node)
	220	{
	221	wxRect r = (wxRect)node->Data();
	222	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
	223	node = node->Next();
	224	}
	225	#endif
	226
	227	return TRUE;
	228	}
	229
	230	bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	231	{
	232	if (!m_refData)
	233	{
	234	m_refData = new wxRegionRefData();
	235	M_REGIONDATA->m_region = gdk_region_new();
	236	}
	237
	238	wxRegion reg( x, y, width, height );
	239	Intersect( reg );
	240	return TRUE;
	241	}
	242
	243	bool wxRegion::Intersect( const wxRect& rect )
	244	{
	245	if (!m_refData)
	246	{
	247	m_refData = new wxRegionRefData();
	248	M_REGIONDATA->m_region = gdk_region_new();
	249	}
	250
	251	wxRegion reg( rect );
	252	Intersect( reg );
	253	return TRUE;
	254	}
	255
	256	bool wxRegion::Intersect( const wxRegion& region )
	257	{
	258	if (region.IsNull())
	259	return FALSE;
	260
	261	if (!m_refData)
	262	{
	263	m_refData = new wxRegionRefData();
	264	M_REGIONDATA->m_region = gdk_region_new();
	265	return TRUE;
	266	}
	267
	268	#ifdef __WXGTK20__
	269	gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() );
	270	#else
	271	GdkRegion *reg = gdk_regions_intersect( M_REGIONDATA->m_region, region.GetRegion() );
	272	gdk_region_destroy( M_REGIONDATA->m_region );
	273	M_REGIONDATA->m_region = reg;
	274	#endif
	275	return TRUE;
	276	}
	277
	278	bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	279	{
	280	if (!m_refData)
	281	{
	282	m_refData = new wxRegionRefData();
	283	M_REGIONDATA->m_region = gdk_region_new();
	284	}
	285
	286	wxRegion reg( x, y, width, height );
	287	Subtract( reg );
	288	return TRUE;
	289	}
	290
	291	bool wxRegion::Subtract( const wxRect& rect )
	292	{
	293	if (!m_refData)
	294	{
	295	m_refData = new wxRegionRefData();
	296	M_REGIONDATA->m_region = gdk_region_new();
	297	}
	298
	299	wxRegion reg( rect );
	300	Subtract( reg );
	301	return TRUE;
	302	}
	303
	304	bool wxRegion::Subtract( const wxRegion& region )
	305	{
	306	if (region.IsNull())
	307	return FALSE;
	308
	309	if (!m_refData)
	310	{
	311	m_refData = new wxRegionRefData();
	312	M_REGIONDATA->m_region = gdk_region_new();
	313	}
	314
	315	#ifdef __WXGTK20__
	316	gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
	317	#else
	318	GdkRegion *reg = gdk_regions_subtract( M_REGIONDATA->m_region, region.GetRegion() );
	319	gdk_region_destroy( M_REGIONDATA->m_region );
	320	M_REGIONDATA->m_region = reg;
	321	#endif
	322	return TRUE;
	323	}
	324
	325	bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
	326	{
	327	if (!m_refData)
	328	{
	329	m_refData = new wxRegionRefData();
	330	M_REGIONDATA->m_region = gdk_region_new();
	331	}
	332
	333	wxRegion reg( x, y, width, height );
	334	Xor( reg );
	335	return TRUE;
	336	}
	337
	338	bool wxRegion::Xor( const wxRect& rect )
	339	{
	340	if (!m_refData)
	341	{
	342	m_refData = new wxRegionRefData();
	343	M_REGIONDATA->m_region = gdk_region_new();
	344	}
	345
	346	wxRegion reg( rect );
	347	Xor( reg );
	348	return TRUE;
	349	}
	350
	351	bool wxRegion::Xor( const wxRegion& region )
	352	{
	353	if (region.IsNull())
	354	return FALSE;
	355
	356	if (!m_refData)
	357	{
	358	m_refData = new wxRegionRefData();
	359	M_REGIONDATA->m_region = gdk_region_new();
	360	}
	361
	362	#ifdef __WXGTK20__
	363	gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
	364	#else
	365	GdkRegion *reg = gdk_regions_xor( M_REGIONDATA->m_region, region.GetRegion() );
	366	gdk_region_destroy( M_REGIONDATA->m_region );
	367	M_REGIONDATA->m_region = reg;
	368	#endif
	369
	370	#if OLDCODE
	371	wxNode *node = region.GetRectList()->First();
	372	while (node)
	373	{
	374	wxRect r = (wxRect)node->Data();
	375	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
	376	node = node->Next();
	377	}
	378	#endif
	379
	380	return TRUE;
	381	}
	382
	383	void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
	384	{
	385	x = 0;
	386	y = 0;
	387	w = -1;
	388	h = -1;
	389	if (!m_refData)
	390	return;
	391
	392	GdkRectangle rect;
	393	gdk_region_get_clipbox( M_REGIONDATA->m_region, &rect );
	394	x = rect.x;
	395	y = rect.y;
	396	w = rect.width;
	397	h = rect.height;
	398	}
	399
	400	wxRect wxRegion::GetBox() const
	401	{
	402	wxCoord x = 0;
	403	wxCoord y = 0;
	404	wxCoord w = -1;
	405	wxCoord h = -1;
	406	GetBox( x, y, w, h );
	407	return wxRect( x, y, w, h );
	408	}
	409
	410	bool wxRegion::Empty() const
	411	{
	412	if (!m_refData)
	413	return TRUE;
	414
	415	return gdk_region_empty( M_REGIONDATA->m_region );
	416	}
	417
	418	wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
	419	{
	420	if (!m_refData)
	421	return wxOutRegion;
	422
	423	if (gdk_region_point_in( M_REGIONDATA->m_region, x, y ))
	424	return wxInRegion;
	425	else
	426	return wxOutRegion;
	427	}
	428
	429	wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
	430	{
	431	if (!m_refData)
	432	return wxOutRegion;
	433
	434	GdkRectangle rect;
	435	rect.x = x;
	436	rect.y = y;
	437	rect.width = w;
	438	rect.height = h;
	439	GdkOverlapType res = gdk_region_rect_in( M_REGIONDATA->m_region, &rect );
	440	switch (res)
	441	{
	442	case GDK_OVERLAP_RECTANGLE_IN: return wxInRegion;
	443	case GDK_OVERLAP_RECTANGLE_OUT: return wxOutRegion;
	444	case GDK_OVERLAP_RECTANGLE_PART: return wxPartRegion;
	445	}
	446	return wxOutRegion;
	447	}
	448
	449	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
	450	{
	451	return Contains( pt.x, pt.y );
	452	}
	453
	454	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	455	{
	456	return Contains( rect.x, rect.y, rect.width, rect.height );
	457	}
	458
	459	GdkRegion *wxRegion::GetRegion() const
	460	{
	461	if (!m_refData)
	462	return (GdkRegion*) NULL;
	463
	464	return M_REGIONDATA->m_region;
	465	}
	466
	467	wxList *wxRegion::GetRectList() const
	468	{
	469	#if OLDCODE
	470	if (!m_refData)
	471	return (wxList*) NULL;
	472
	473	return &(M_REGIONDATA->m_rects);
	474	#else
	475	return (wxList*) NULL;
	476	#endif
	477	}
	478
	479	//-----------------------------------------------------------------------------
	480	// wxRegionIterator
	481	//-----------------------------------------------------------------------------
	482
	483	#if OLDCODE
	484
	485	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
	486
	487	wxRegionIterator::wxRegionIterator()
	488	{
	489	Reset();
	490	}
	491
	492	wxRegionIterator::wxRegionIterator( const wxRegion& region )
	493	{
	494	Reset(region);
	495	}
	496
	497	void wxRegionIterator::Reset( const wxRegion& region )
	498	{
	499	m_region = region;
	500	Reset();
	501	}
	502
	503	wxRegionIterator::operator bool () const
	504	{
	505	return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
	506	}
	507
	508	bool wxRegionIterator::HaveRects() const
	509	{
	510	return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
	511	}
	512
	513	void wxRegionIterator::operator ++ ()
	514	{
	515	if (HaveRects()) ++m_current;
	516	}
	517
	518	void wxRegionIterator::operator ++ (int)
	519	{
	520	if (HaveRects()) ++m_current;
	521	}
	522
	523	wxCoord wxRegionIterator::GetX() const
	524	{
	525	wxNode *node = m_region.GetRectList()->Nth( m_current );
	526	if (!node) return 0;
	527	wxRect r = (wxRect)node->Data();
	528	return r->x;
	529	}
	530
	531	wxCoord wxRegionIterator::GetY() const
	532	{
	533	wxNode *node = m_region.GetRectList()->Nth( m_current );
	534	if (!node) return 0;
	535	wxRect r = (wxRect)node->Data();
	536	return r->y;
	537	}
	538
	539	wxCoord wxRegionIterator::GetW() const
	540	{
	541	wxNode *node = m_region.GetRectList()->Nth( m_current );
	542	if (!node) return 0;
	543	wxRect r = (wxRect)node->Data();
	544	return r->width;
	545	}
	546
	547	wxCoord wxRegionIterator::GetH() const
	548	{
	549	wxNode *node = m_region.GetRectList()->Nth( m_current );
	550	if (!node) return 0;
	551	wxRect r = (wxRect)node->Data();
	552	return r->height;
	553	}
	554
	555	#else
	556
	557	// the following structures must match the private structures
	558	// in X11 region code ( xc/lib/X11/region.h )
	559
	560	// this makes the Region type transparent
	561	// and we have access to the region rectangles
	562
	563	struct _XBox {
	564	short x1, x2, y1, y2;
	565	};
	566
	567	struct _XRegion {
	568	long size , numRects;
	569	_XBox *rects, extents;
	570	};
	571
	572	class wxRIRefData: public wxObjectRefData
	573	{
	574	public:
	575
	576	wxRIRefData() : m_rects(0), m_numRects(0){}
	577	~wxRIRefData();
	578
	579	wxRect *m_rects;
	580	size_t m_numRects;
	581
	582	void CreateRects( const wxRegion& r );
	583	};
	584
	585	wxRIRefData::~wxRIRefData()
	586	{
	587	delete m_rects;
	588	}
	589
	590	#include <gdk/gdkprivate.h>
	591
	592	void wxRIRefData::CreateRects( const wxRegion& region )
	593	{
	594	if( m_rects )
	595	delete m_rects;
	596	m_rects = 0;
	597	m_numRects= 0;
	598	GdkRegion *gdkregion= region.GetRegion();
	599	if( gdkregion ){
	600	Region r= ((GdkRegionPrivate *)gdkregion)->xregion;
	601	if( r ){
	602	m_numRects= r->numRects;
	603	if( m_numRects )
	604	{
	605	m_rects= new wxRect[m_numRects];
	606	for( size_t i=0; i<m_numRects; ++i )
	607	{
	608	_XBox &xr= r->rects[i];
	609	wxRect&wr= m_rects[i];
	610	wr.x = xr.x1;
	611	wr.y = xr.y1;
	612	wr.width = xr.x2-xr.x1;
	613	wr.height= xr.y2-xr.y1;
	614	}
	615	}
	616	}
	617	}
	618	}
	619
	620	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
	621
	622	wxRegionIterator::wxRegionIterator()
	623	{
	624	m_refData = new wxRIRefData();
	625	Reset();
	626	}
	627
	628	wxRegionIterator::wxRegionIterator( const wxRegion& region )
	629	{
	630	m_refData = new wxRIRefData();
	631	Reset(region);
	632	}
	633
	634	void wxRegionIterator::Reset( const wxRegion& region )
	635	{
	636	m_region = region;
	637	((wxRIRefData*)m_refData)->CreateRects(region);
	638	Reset();
	639	}
	640
	641	bool wxRegionIterator::HaveRects() const
	642	{
	643	return m_current < ((wxRIRefData*)m_refData)->m_numRects;
	644	}
	645
	646	wxRegionIterator::operator bool () const
	647	{
	648	return HaveRects();
	649	}
	650
	651	void wxRegionIterator::operator ++ ()
	652	{
	653	if (HaveRects()) ++m_current;
	654	}
	655
	656	void wxRegionIterator::operator ++ (int)
	657	{
	658	if (HaveRects()) ++m_current;
	659	}
	660
	661	wxCoord wxRegionIterator::GetX() const
	662	{
	663	if( !HaveRects() ) return 0;
	664	return ((wxRIRefData*)m_refData)->m_rects[m_current].x;
	665	}
	666
	667	wxCoord wxRegionIterator::GetY() const
	668	{
	669	if( !HaveRects() ) return 0;
	670	return ((wxRIRefData*)m_refData)->m_rects[m_current].y;
	671	}
	672
	673	wxCoord wxRegionIterator::GetW() const
	674	{
	675	if( !HaveRects() ) return -1;
	676	return ((wxRIRefData*)m_refData)->m_rects[m_current].width;
	677	}
	678
	679	wxCoord wxRegionIterator::GetH() const
	680	{
	681	if( !HaveRects() ) return -1;
	682	return ((wxRIRefData*)m_refData)->m_rects[m_current].height;
	683	}
	684
	685	#endif
	686