[wxWidgets.git] / src / gtk1 / 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
c801d85f	1	/////////////////////////////////////////////////////////////////////////////
5fc7ede9	2	// Name: gtk/region.cpp
c801d85f KB	3	// Purpose:
c801d85f KB	4	// Author: Robert Roebling
f96aa4d9 RR	5	// Id: $Id$
f96aa4d9 RR	6	// Copyright: (c) 1998 Robert Roebling
5fc7ede9	7	// Licence: wxWindows licence
c801d85f KB	8	/////////////////////////////////////////////////////////////////////////////
c801d85f KB	9
c801d85f KB	10	#ifdef __GNUG__
	11	#pragma implementation "region.h"
	12	#endif
	13
	14	#include "wx/region.h"
	15
aed8ac3f RR	16	#include <gdk/gdk.h>
aed8ac3f RR	17	#include <gtk/gtk.h>
bbe0af5b	18
d52e91c9 JS	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
3d0c4d2e	25	#define OLDCODE 0
d52e91c9	26	#endif
864e8bd0	27
c801d85f KB	28	//-----------------------------------------------------------------------------
	29	// wxRegion
	30	//-----------------------------------------------------------------------------
	31
	32	class wxRegionRefData: public wxObjectRefData
	33	{
864e8bd0	34	public:
bf57d1ad VZ	35	wxRegionRefData();
bf57d1ad VZ	36	~wxRegionRefData();
5fc7ede9	37
c801d85f	38	GdkRegion *m_region;
3d0c4d2e	39	#if OLDCODE
8429bec1	40	wxList m_rects;
3d0c4d2e	41	#endif
c801d85f KB	42	};
c801d85f KB	43
bf57d1ad	44	wxRegionRefData::wxRegionRefData()
c801d85f	45	{
bbe0af5b	46	m_region = (GdkRegion *) NULL;
ff7b1510	47	}
c801d85f	48
bf57d1ad	49	wxRegionRefData::~wxRegionRefData()
c801d85f	50	{
bbe0af5b	51	if (m_region) gdk_region_destroy( m_region );
5fc7ede9	52
3d0c4d2e	53	#if OLDCODE
bbe0af5b RR	54	wxNode *node = m_rects.First();
	55	while (node)
	56	{
	57	wxRect r = (wxRect)node->Data();
	58	delete r;
	59	node = node->Next();
	60	}
3d0c4d2e	61	#endif
ff7b1510	62	}
c801d85f KB	63
	64	//-----------------------------------------------------------------------------
	65
	66	#define M_REGIONDATA ((wxRegionRefData *)m_refData)
	67
	68	IMPLEMENT_DYNAMIC_CLASS(wxRegion,wxGDIObject);
5fc7ede9 VZ	69
5fc7ede9 VZ	70	wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
c801d85f	71	{
bbe0af5b RR	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;
b7c2d6ff OK	79	#ifdef __WXGTK20__
	80	gdk_region_union_with_rect( reg, &rect );
	81	M_REGIONDATA->m_region = reg;
	82	#else
bbe0af5b RR	83	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
bbe0af5b RR	84	gdk_region_destroy( reg );
b7c2d6ff	85	#endif
3d0c4d2e	86	#if OLDCODE
bbe0af5b	87	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,w,h) );
3d0c4d2e	88	#endif
ff7b1510	89	}
c801d85f KB	90
	91	wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
	92	{
bbe0af5b RR	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;
b7c2d6ff OK	100	#ifdef __WXGTK20__
	101	gdk_region_union_with_rect( reg, &rect );
	102	M_REGIONDATA->m_region = reg;
	103	#else
bbe0af5b RR	104	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
bbe0af5b RR	105	gdk_region_destroy( reg );
b7c2d6ff	106	#endif
3d0c4d2e	107	#if OLDCODE
bbe0af5b	108	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(topLeft,bottomRight) );
3d0c4d2e	109	#endif
ff7b1510	110	}
c801d85f KB	111
	112	wxRegion::wxRegion( const wxRect& rect )
	113	{
bbe0af5b RR	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;
b7c2d6ff OK	121	#ifdef __WXGTK20__
	122	gdk_region_union_with_rect( reg, &g_rect );
	123	M_REGIONDATA->m_region = reg;
	124	#else
bbe0af5b RR	125	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &g_rect );
bbe0af5b RR	126	gdk_region_destroy( reg );
b7c2d6ff	127	#endif
3d0c4d2e	128	#if OLDCODE
e1208c31	129	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(rect.x,rect.y,rect.width,rect.height) );
3d0c4d2e	130	#endif
ff7b1510	131	}
c801d85f	132
bf57d1ad	133	wxRegion::wxRegion()
c801d85f	134	{
ff7b1510	135	}
c801d85f	136
bf57d1ad	137	wxRegion::~wxRegion()
c801d85f	138	{
ff7b1510	139	}
c801d85f	140
76ed8f8d RR	141	bool wxRegion::operator == ( const wxRegion& region )
76ed8f8d RR	142	{
5fc7ede9	143	return m_refData == region.m_refData;
76ed8f8d RR	144	}
	145
	146	bool wxRegion::operator != ( const wxRegion& region )
	147	{
5fc7ede9	148	return m_refData != region.m_refData;
76ed8f8d RR	149	}
76ed8f8d RR	150
bf57d1ad	151	void wxRegion::Clear()
c801d85f	152	{
bbe0af5b	153	UnRef();
ff7b1510	154	}
c801d85f	155
5fc7ede9	156	bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
c801d85f	157	{
bbe0af5b RR	158	GdkRectangle rect;
	159	rect.x = x;
	160	rect.y = y;
	161	rect.width = width;
	162	rect.height = height;
e1208c31 RR	163	if (!m_refData)
	164	{
	165	m_refData = new wxRegionRefData();
	166	GdkRegion *reg = gdk_region_new();
b7c2d6ff OK	167	#ifdef __WXGTK20__
	168	gdk_region_union_with_rect( reg, &rect );
	169	M_REGIONDATA->m_region = reg;
	170	#else
e1208c31 RR	171	M_REGIONDATA->m_region = gdk_region_union_with_rect( reg, &rect );
e1208c31 RR	172	gdk_region_destroy( reg );
b7c2d6ff	173	#endif
e1208c31 RR	174	}
	175	else
	176	{
b7c2d6ff OK	177	#ifdef __WXGTK20__
	178	gdk_region_union_with_rect( M_REGIONDATA->m_region, &rect );
	179	#else
e1208c31 RR	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;
b7c2d6ff	183	#endif
e1208c31 RR	184	}
e1208c31 RR	185
3d0c4d2e	186	#if OLDCODE
bbe0af5b	187	M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
3d0c4d2e	188	#endif
e1208c31	189
bbe0af5b	190	return TRUE;
ff7b1510	191	}
c801d85f KB	192
	193	bool wxRegion::Union( const wxRect& rect )
	194	{
e1208c31	195	return Union( rect.x, rect.y, rect.width, rect.height );
ff7b1510	196	}
c801d85f KB	197
	198	bool wxRegion::Union( const wxRegion& region )
	199	{
e1208c31 RR	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
b7c2d6ff OK	209	#ifdef __WXGTK20__
	210	gdk_region_union( M_REGIONDATA->m_region, region.GetRegion() );
	211	#else
bbe0af5b RR	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;
b7c2d6ff	215	#endif
5fc7ede9	216
3d0c4d2e	217	#if OLDCODE
bbe0af5b RR	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	}
3d0c4d2e	225	#endif
5fc7ede9	226
bbe0af5b	227	return TRUE;
ff7b1510	228	}
c801d85f	229
5fc7ede9	230	bool wxRegion::Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
c801d85f	231	{
e1208c31 RR	232	if (!m_refData)
	233	{
	234	m_refData = new wxRegionRefData();
	235	M_REGIONDATA->m_region = gdk_region_new();
	236	}
	237
bbe0af5b RR	238	wxRegion reg( x, y, width, height );
	239	Intersect( reg );
	240	return TRUE;
ff7b1510	241	}
c801d85f KB	242
	243	bool wxRegion::Intersect( const wxRect& rect )
	244	{
e1208c31 RR	245	if (!m_refData)
	246	{
	247	m_refData = new wxRegionRefData();
	248	M_REGIONDATA->m_region = gdk_region_new();
	249	}
	250
bbe0af5b RR	251	wxRegion reg( rect );
	252	Intersect( reg );
	253	return TRUE;
ff7b1510	254	}
c801d85f KB	255
	256	bool wxRegion::Intersect( const wxRegion& region )
	257	{
e1208c31 RR	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
b7c2d6ff OK	268	#ifdef __WXGTK20__
	269	gdk_region_intersect( M_REGIONDATA->m_region, region.GetRegion() );
	270	#else
bbe0af5b RR	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;
b7c2d6ff	274	#endif
bbe0af5b	275	return TRUE;
ff7b1510	276	}
c801d85f	277
5fc7ede9	278	bool wxRegion::Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
c801d85f	279	{
e1208c31 RR	280	if (!m_refData)
	281	{
	282	m_refData = new wxRegionRefData();
	283	M_REGIONDATA->m_region = gdk_region_new();
	284	}
	285
bbe0af5b RR	286	wxRegion reg( x, y, width, height );
	287	Subtract( reg );
	288	return TRUE;
ff7b1510	289	}
c801d85f KB	290
	291	bool wxRegion::Subtract( const wxRect& rect )
	292	{
e1208c31 RR	293	if (!m_refData)
	294	{
	295	m_refData = new wxRegionRefData();
	296	M_REGIONDATA->m_region = gdk_region_new();
	297	}
	298
bbe0af5b RR	299	wxRegion reg( rect );
	300	Subtract( reg );
	301	return TRUE;
ff7b1510	302	}
c801d85f KB	303
	304	bool wxRegion::Subtract( const wxRegion& region )
	305	{
e1208c31 RR	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
b7c2d6ff OK	315	#ifdef __WXGTK20__
	316	gdk_region_subtract( M_REGIONDATA->m_region, region.GetRegion() );
	317	#else
bbe0af5b RR	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;
b7c2d6ff	321	#endif
bbe0af5b	322	return TRUE;
ff7b1510	323	}
c801d85f	324
5fc7ede9	325	bool wxRegion::Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
c801d85f	326	{
e1208c31 RR	327	if (!m_refData)
	328	{
	329	m_refData = new wxRegionRefData();
	330	M_REGIONDATA->m_region = gdk_region_new();
	331	}
	332
bbe0af5b RR	333	wxRegion reg( x, y, width, height );
	334	Xor( reg );
	335	return TRUE;
ff7b1510	336	}
c801d85f KB	337
	338	bool wxRegion::Xor( const wxRect& rect )
	339	{
e1208c31 RR	340	if (!m_refData)
	341	{
	342	m_refData = new wxRegionRefData();
	343	M_REGIONDATA->m_region = gdk_region_new();
	344	}
	345
bbe0af5b RR	346	wxRegion reg( rect );
	347	Xor( reg );
	348	return TRUE;
ff7b1510	349	}
c801d85f KB	350
	351	bool wxRegion::Xor( const wxRegion& region )
	352	{
e1208c31	353	if (region.IsNull())
05a11043	354	return FALSE;
e1208c31 RR	355
	356	if (!m_refData)
	357	{
	358	m_refData = new wxRegionRefData();
	359	M_REGIONDATA->m_region = gdk_region_new();
	360	}
	361
b7c2d6ff OK	362	#ifdef __WXGTK20__
	363	gdk_region_xor( M_REGIONDATA->m_region, region.GetRegion() );
	364	#else
bbe0af5b RR	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;
b7c2d6ff	368	#endif
5fc7ede9	369
3d0c4d2e	370	#if OLDCODE
bbe0af5b RR	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	}
3d0c4d2e	378	#endif
5fc7ede9	379
bbe0af5b	380	return TRUE;
ff7b1510	381	}
c801d85f	382
e1208c31	383	void wxRegion::GetBox( wxCoord &x, wxCoord &y, wxCoord &w, wxCoord &h ) const
c801d85f	384	{
bbe0af5b RR	385	x = 0;
	386	y = 0;
	387	w = -1;
	388	h = -1;
05a11043	389	if (!m_refData)
e1208c31 RR	390	return;
e1208c31 RR	391
864e8bd0 RR	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;
ff7b1510	398	}
c801d85f	399
bf57d1ad	400	wxRect wxRegion::GetBox() const
c801d85f	401	{
5fc7ede9 VZ	402	wxCoord x = 0;
	403	wxCoord y = 0;
	404	wxCoord w = -1;
	405	wxCoord h = -1;
bbe0af5b RR	406	GetBox( x, y, w, h );
bbe0af5b RR	407	return wxRect( x, y, w, h );
ff7b1510	408	}
c801d85f	409
bf57d1ad	410	bool wxRegion::Empty() const
c801d85f	411	{
e1208c31 RR	412	if (!m_refData)
	413	return TRUE;
	414
bbe0af5b	415	return gdk_region_empty( M_REGIONDATA->m_region );
ff7b1510	416	}
c801d85f	417
5fc7ede9	418	wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y ) const
c801d85f	419	{
e1208c31 RR	420	if (!m_refData)
	421	return wxOutRegion;
	422
bbe0af5b RR	423	if (gdk_region_point_in( M_REGIONDATA->m_region, x, y ))
	424	return wxInRegion;
	425	else
	426	return wxOutRegion;
ff7b1510	427	}
c801d85f	428
5fc7ede9	429	wxRegionContain wxRegion::Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const
c801d85f	430	{
e1208c31 RR	431	if (!m_refData)
	432	return wxOutRegion;
	433
bbe0af5b RR	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;
ff7b1510	447	}
c801d85f	448
8429bec1 RR	449	wxRegionContain wxRegion::Contains(const wxPoint& pt) const
8429bec1 RR	450	{
bbe0af5b	451	return Contains( pt.x, pt.y );
8429bec1 RR	452	}
	453
	454	wxRegionContain wxRegion::Contains(const wxRect& rect) const
	455	{
bbe0af5b	456	return Contains( rect.x, rect.y, rect.width, rect.height );
8429bec1 RR	457	}
8429bec1 RR	458
bf57d1ad	459	GdkRegion *wxRegion::GetRegion() const
c801d85f	460	{
e1208c31 RR	461	if (!m_refData)
	462	return (GdkRegion*) NULL;
	463
bbe0af5b	464	return M_REGIONDATA->m_region;
ff7b1510	465	}
c801d85f	466
8429bec1 RR	467	wxList *wxRegion::GetRectList() const
8429bec1 RR	468	{
3d0c4d2e	469	#if OLDCODE
e1208c31 RR	470	if (!m_refData)
	471	return (wxList*) NULL;
	472
bbe0af5b	473	return &(M_REGIONDATA->m_rects);
3d0c4d2e RR	474	#else
	475	return (wxList*) NULL;
	476	#endif
8429bec1 RR	477	}
	478
	479	//-----------------------------------------------------------------------------
3d0c4d2e	480	// wxRegionIterator
8429bec1 RR	481	//-----------------------------------------------------------------------------
8429bec1 RR	482
3d0c4d2e RR	483	#if OLDCODE
3d0c4d2e RR	484
8429bec1	485	IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
5fc7ede9	486
bf57d1ad	487	wxRegionIterator::wxRegionIterator()
8429bec1	488	{
6f2a55e3	489	Reset();
8429bec1 RR	490	}
	491
	492	wxRegionIterator::wxRegionIterator( const wxRegion& region )
	493	{
6f2a55e3	494	Reset(region);
8429bec1 RR	495	}
	496
	497	void wxRegionIterator::Reset( const wxRegion& region )
	498	{
bbe0af5b	499	m_region = region;
6f2a55e3	500	Reset();
8429bec1 RR	501	}
8429bec1 RR	502
5fc7ede9 VZ	503	wxRegionIterator::operator bool () const
5fc7ede9 VZ	504	{
3d0c4d2e	505	return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
8429bec1 RR	506	}
8429bec1 RR	507
5fc7ede9 VZ	508	bool wxRegionIterator::HaveRects() const
5fc7ede9 VZ	509	{
3d0c4d2e	510	return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
8429bec1 RR	511	}
8429bec1 RR	512
bf57d1ad	513	void wxRegionIterator::operator ++ ()
8429bec1	514	{
3d0c4d2e	515	if (HaveRects()) ++m_current;
8429bec1 RR	516	}
	517
	518	void wxRegionIterator::operator ++ (int)
	519	{
3d0c4d2e	520	if (HaveRects()) ++m_current;
8429bec1 RR	521	}
8429bec1 RR	522
bf57d1ad	523	wxCoord wxRegionIterator::GetX() const
8429bec1	524	{
bbe0af5b RR	525	wxNode *node = m_region.GetRectList()->Nth( m_current );
	526	if (!node) return 0;
	527	wxRect r = (wxRect)node->Data();
	528	return r->x;
8429bec1 RR	529	}
8429bec1 RR	530
bf57d1ad	531	wxCoord wxRegionIterator::GetY() const
8429bec1	532	{
bbe0af5b RR	533	wxNode *node = m_region.GetRectList()->Nth( m_current );
	534	if (!node) return 0;
	535	wxRect r = (wxRect)node->Data();
	536	return r->y;
8429bec1 RR	537	}
8429bec1 RR	538
bf57d1ad	539	wxCoord wxRegionIterator::GetW() const
8429bec1	540	{
bbe0af5b RR	541	wxNode *node = m_region.GetRectList()->Nth( m_current );
	542	if (!node) return 0;
	543	wxRect r = (wxRect)node->Data();
	544	return r->width;
8429bec1 RR	545	}
8429bec1 RR	546
bf57d1ad	547	wxCoord wxRegionIterator::GetH() const
8429bec1	548	{
bbe0af5b RR	549	wxNode *node = m_region.GetRectList()->Nth( m_current );
	550	if (!node) return 0;
	551	wxRect r = (wxRect)node->Data();
	552	return r->height;
8429bec1 RR	553	}
8429bec1 RR	554
3d0c4d2e RR	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
8429bec1	686