Applied DrawArc patch.

Applied break-up-region patch.
  Implemented sort of ShowFullScreen() - test in scrollsub.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8253 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/frame.h

@@ -69,6 +69,9 @@ public:
     virtual void MakeModal(bool modal = TRUE);
     virtual void Restore();
 
+    virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL);
+    virtual bool IsFullScreen() const { return m_fsIsShowing; };
+
     virtual void SetMenuBar( wxMenuBar *menuBar );
 
 #if wxUSE_STATUSBAR
@@ -111,6 +114,11 @@ public:
     bool          m_toolBarDetached;
     bool          m_insertInClientArea;  /* not from within OnCreateXXX */
 
+    bool          m_fsIsShowing;         /* full screen */
+    long          m_fsSaveStyle;
+    long          m_fsSaveFlag;
+    wxRect        m_fsSaveFrame;
+
 protected:
     // common part of all ctors
     void Init();

include/wx/gtk1/frame.h

@@ -69,6 +69,9 @@ public:
     virtual void MakeModal(bool modal = TRUE);
     virtual void Restore();
 
+    virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL);
+    virtual bool IsFullScreen() const { return m_fsIsShowing; };
+
     virtual void SetMenuBar( wxMenuBar *menuBar );
 
 #if wxUSE_STATUSBAR
@@ -111,6 +114,11 @@ public:
     bool          m_toolBarDetached;
     bool          m_insertInClientArea;  /* not from within OnCreateXXX */
 
+    bool          m_fsIsShowing;         /* full screen */
+    long          m_fsSaveStyle;
+    long          m_fsSaveFlag;
+    wxRect        m_fsSaveFrame;
+
 protected:
     // common part of all ctors
     void Init();

samples/scrollsub/scrollsub.cpp

@@ -112,6 +112,7 @@ public:
 
     void OnAbout( wxCommandEvent &event );
     void OnQuit( wxCommandEvent &event );
+    void OnFullScreen( wxCommandEvent &event );
 
     wxScrolledWindow   *m_scrolled;
     wxTextCtrl         *m_log;
@@ -340,13 +341,15 @@ void MyCanvas::ScrollWindow( int dx, int dy, const wxRect *rect )
 // MyFrame
 
 const int ID_QUIT  = 108;
-const int ID_ABOUT = 109;
+const int ID_FULL  = 109;
+const int ID_ABOUT = 110;
 
 IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
 
 BEGIN_EVENT_TABLE(MyFrame,wxFrame)
   EVT_MENU    (ID_ABOUT, MyFrame::OnAbout)
   EVT_MENU    (ID_QUIT,  MyFrame::OnQuit)
+  EVT_MENU    (ID_FULL,  MyFrame::OnFullScreen)
 END_EVENT_TABLE()
 
 MyFrame::MyFrame()
@@ -354,7 +357,8 @@ MyFrame::MyFrame()
                   wxPoint(20,20), wxSize(470,500) )
 {
     wxMenu *file_menu = new wxMenu();
-    file_menu->Append( ID_ABOUT, "&About..");
+    file_menu->Append( ID_ABOUT, "&About...");
+    file_menu->Append( ID_FULL, "&Full screen on/off");
     file_menu->Append( ID_QUIT, "E&xit\tAlt-X");
 
     wxMenuBar *menu_bar = new wxMenuBar();
@@ -386,6 +390,11 @@ void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
   Close( TRUE );
 }
 
+void MyFrame::OnFullScreen( wxCommandEvent &WXUNUSED(event) )
+{
+   ShowFullScreen( !IsFullScreen(), wxFULLSCREEN_NOBORDER|wxFULLSCREEN_NOCAPTION );
+}
+
 void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
 {
   (void)wxMessageBox( "wxScroll demo II\n"

src/gtk/dcclient.cpp

@@ -526,7 +526,12 @@ void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
         }
 
         if (m_pen.GetStyle() != wxTRANSPARENT)
+        {
             gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
+            
+            gdk_draw_line( m_window, m_penGC, xx1, yy1, xxc, yyc );
+            gdk_draw_line( m_window, m_penGC, xxc, yyc, xx2, yy2 );
+        }
     }
 
     CalcBoundingBox (x1, y1);
@@ -549,7 +554,7 @@ void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord
     if (m_window)
     {
         wxCoord start = wxCoord(sa * 64.0);
-        wxCoord end = wxCoord(ea * 64.0);
+        wxCoord end = wxCoord((ea-sa) * 64.0);
 
         if (m_brush.GetStyle() != wxTRANSPARENT)
         {

src/gtk/frame.cpp

@@ -411,6 +411,7 @@ bool wxFrame::Create( wxWindow *parent,
     wxTopLevelWindows.Append( this );
 
     m_needParent = FALSE;
+    m_fsIsShowing = FALSE;
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
@@ -512,6 +513,48 @@ wxFrame::~wxFrame()
     }
 }
 
+bool wxFrame::ShowFullScreen(bool show, long style )
+{
+    if (show == m_fsIsShowing) return FALSE; // return what?
+
+    m_fsIsShowing = show;
+    
+    if (show)
+    {
+        m_fsSaveStyle = m_windowStyle;
+        m_fsSaveFlag = style;
+        GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
+        GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
+        
+        gtk_widget_hide( m_widget );
+        gtk_widget_unrealize( m_widget );
+        
+        m_windowStyle = wxSIMPLE_BORDER;
+        
+        int x;
+        int y;
+        wxDisplaySize( &x, &y );
+        SetSize( 0, 0, x, y );
+        
+        gtk_widget_realize( m_widget );
+        gtk_widget_show( m_widget );
+    }
+    else
+    {
+        gtk_widget_hide( m_widget );
+        gtk_widget_unrealize( m_widget );
+    
+        m_windowStyle = m_fsSaveStyle;
+        
+        SetSize( m_fsSaveFrame.x, m_fsSaveFrame.y, m_fsSaveFrame.width, m_fsSaveFrame.height );
+        
+        gtk_widget_realize( m_widget );
+        gtk_widget_show( m_widget );
+    }
+    
+    return TRUE;
+}
+
 // ----------------------------------------------------------------------------
 // overridden wxWindow methods
 // ----------------------------------------------------------------------------

src/gtk/region.cpp

@@ -16,6 +16,7 @@
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
+#define OLDCODE 0
 
 //-----------------------------------------------------------------------------
 // wxRegion
@@ -28,7 +29,9 @@ public:
     ~wxRegionRefData();
 
     GdkRegion  *m_region;
+#if OLDCODE
     wxList      m_rects;
+#endif
 };
 
 wxRegionRefData::wxRegionRefData()
@@ -40,6 +43,7 @@ wxRegionRefData::~wxRegionRefData()
 {
     if (m_region) gdk_region_destroy( m_region );
 
+#if OLDCODE
     wxNode *node = m_rects.First();
     while (node)
     {
@@ -47,6 +51,7 @@ wxRegionRefData::~wxRegionRefData()
         delete r;
         node = node->Next();
     }
+#endif
 }
 
 //-----------------------------------------------------------------------------
@@ -71,7 +76,9 @@ wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
     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 )
@@ -90,7 +97,9 @@ wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
     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 )
@@ -109,7 +118,9 @@ wxRegion::wxRegion( const wxRect& rect )
     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()
@@ -165,7 +176,9 @@ bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 #endif
     }
     
+#if OLDCODE
     M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
+#endif
 
     return TRUE;
 }
@@ -194,6 +207,7 @@ bool wxRegion::Union( const wxRegion& region )
     M_REGIONDATA->m_region = reg;
 #endif
 
+#if OLDCODE
     wxNode *node = region.GetRectList()->First();
     while (node)
     {
@@ -201,6 +215,7 @@ bool wxRegion::Union( const wxRegion& region )
         M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
         node = node->Next();
     }
+#endif
 
     return TRUE;
 }
@@ -345,6 +360,7 @@ bool wxRegion::Xor( const wxRegion& region )
     M_REGIONDATA->m_region = reg;
 #endif
 
+#if OLDCODE
     wxNode *node = region.GetRectList()->First();
     while (node)
     {
@@ -352,6 +368,7 @@ bool wxRegion::Xor( const wxRegion& region )
         M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
         node = node->Next();
     }
+#endif
 
     return TRUE;
 }
@@ -442,16 +459,22 @@ GdkRegion *wxRegion::GetRegion() const
 
 wxList *wxRegion::GetRectList() const
 {
+#if OLDCODE
     if (!m_refData)
         return (wxList*) NULL;
 
     return &(M_REGIONDATA->m_rects);
+#else
+    return (wxList*) NULL;
+#endif
 }
 
 //-----------------------------------------------------------------------------
-// wxRegion
+// wxRegionIterator
 //-----------------------------------------------------------------------------
 
+#if OLDCODE
+
 IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
 
 wxRegionIterator::wxRegionIterator()
@@ -472,22 +495,22 @@ void wxRegionIterator::Reset( const wxRegion& region )
 
 wxRegionIterator::operator bool () const
 {
-    return m_current < (size_t)m_region.GetRectList()->Number();
+    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
 }
 
 bool wxRegionIterator::HaveRects() const
 {
-    return m_current < (size_t)m_region.GetRectList()->Number();
+    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
 }
 
 void wxRegionIterator::operator ++ ()
 {
-    if (m_current < (size_t)m_region.GetRectList()->Number()) ++m_current;
+    if (HaveRects()) ++m_current;
 }
 
 void wxRegionIterator::operator ++ (int)
 {
-    if (m_current < (size_t)m_region.GetRectList()->Number()) ++m_current;
+    if (HaveRects()) ++m_current;
 }
 
 wxCoord wxRegionIterator::GetX() const
@@ -522,4 +545,135 @@ wxCoord wxRegionIterator::GetH() const
     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
 

src/gtk1/dcclient.cpp

@@ -526,7 +526,12 @@ void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
         }
 
         if (m_pen.GetStyle() != wxTRANSPARENT)
+        {
             gdk_draw_arc( m_window, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
+            
+            gdk_draw_line( m_window, m_penGC, xx1, yy1, xxc, yyc );
+            gdk_draw_line( m_window, m_penGC, xxc, yyc, xx2, yy2 );
+        }
     }
 
     CalcBoundingBox (x1, y1);
@@ -549,7 +554,7 @@ void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord
     if (m_window)
     {
         wxCoord start = wxCoord(sa * 64.0);
-        wxCoord end = wxCoord(ea * 64.0);
+        wxCoord end = wxCoord((ea-sa) * 64.0);
 
         if (m_brush.GetStyle() != wxTRANSPARENT)
         {

src/gtk1/frame.cpp

@@ -411,6 +411,7 @@ bool wxFrame::Create( wxWindow *parent,
     wxTopLevelWindows.Append( this );
 
     m_needParent = FALSE;
+    m_fsIsShowing = FALSE;
 
     if (!PreCreation( parent, pos, size ) ||
         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
@@ -512,6 +513,48 @@ wxFrame::~wxFrame()
     }
 }
 
+bool wxFrame::ShowFullScreen(bool show, long style )
+{
+    if (show == m_fsIsShowing) return FALSE; // return what?
+
+    m_fsIsShowing = show;
+    
+    if (show)
+    {
+        m_fsSaveStyle = m_windowStyle;
+        m_fsSaveFlag = style;
+        GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
+        GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
+        
+        gtk_widget_hide( m_widget );
+        gtk_widget_unrealize( m_widget );
+        
+        m_windowStyle = wxSIMPLE_BORDER;
+        
+        int x;
+        int y;
+        wxDisplaySize( &x, &y );
+        SetSize( 0, 0, x, y );
+        
+        gtk_widget_realize( m_widget );
+        gtk_widget_show( m_widget );
+    }
+    else
+    {
+        gtk_widget_hide( m_widget );
+        gtk_widget_unrealize( m_widget );
+    
+        m_windowStyle = m_fsSaveStyle;
+        
+        SetSize( m_fsSaveFrame.x, m_fsSaveFrame.y, m_fsSaveFrame.width, m_fsSaveFrame.height );
+        
+        gtk_widget_realize( m_widget );
+        gtk_widget_show( m_widget );
+    }
+    
+    return TRUE;
+}
+
 // ----------------------------------------------------------------------------
 // overridden wxWindow methods
 // ----------------------------------------------------------------------------

src/gtk1/region.cpp

@@ -16,6 +16,7 @@
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
+#define OLDCODE 0
 
 //-----------------------------------------------------------------------------
 // wxRegion
@@ -28,7 +29,9 @@ public:
     ~wxRegionRefData();
 
     GdkRegion  *m_region;
+#if OLDCODE
     wxList      m_rects;
+#endif
 };
 
 wxRegionRefData::wxRegionRefData()
@@ -40,6 +43,7 @@ wxRegionRefData::~wxRegionRefData()
 {
     if (m_region) gdk_region_destroy( m_region );
 
+#if OLDCODE
     wxNode *node = m_rects.First();
     while (node)
     {
@@ -47,6 +51,7 @@ wxRegionRefData::~wxRegionRefData()
         delete r;
         node = node->Next();
     }
+#endif
 }
 
 //-----------------------------------------------------------------------------
@@ -71,7 +76,9 @@ wxRegion::wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
     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 )
@@ -90,7 +97,9 @@ wxRegion::wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
     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 )
@@ -109,7 +118,9 @@ wxRegion::wxRegion( const wxRect& rect )
     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()
@@ -165,7 +176,9 @@ bool wxRegion::Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
 #endif
     }
     
+#if OLDCODE
     M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(x,y,width,height) );
+#endif
 
     return TRUE;
 }
@@ -194,6 +207,7 @@ bool wxRegion::Union( const wxRegion& region )
     M_REGIONDATA->m_region = reg;
 #endif
 
+#if OLDCODE
     wxNode *node = region.GetRectList()->First();
     while (node)
     {
@@ -201,6 +215,7 @@ bool wxRegion::Union( const wxRegion& region )
         M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
         node = node->Next();
     }
+#endif
 
     return TRUE;
 }
@@ -345,6 +360,7 @@ bool wxRegion::Xor( const wxRegion& region )
     M_REGIONDATA->m_region = reg;
 #endif
 
+#if OLDCODE
     wxNode *node = region.GetRectList()->First();
     while (node)
     {
@@ -352,6 +368,7 @@ bool wxRegion::Xor( const wxRegion& region )
         M_REGIONDATA->m_rects.Append( (wxObject*) new wxRect(r->x,r->y,r->width,r->height) );
         node = node->Next();
     }
+#endif
 
     return TRUE;
 }
@@ -442,16 +459,22 @@ GdkRegion *wxRegion::GetRegion() const
 
 wxList *wxRegion::GetRectList() const
 {
+#if OLDCODE
     if (!m_refData)
         return (wxList*) NULL;
 
     return &(M_REGIONDATA->m_rects);
+#else
+    return (wxList*) NULL;
+#endif
 }
 
 //-----------------------------------------------------------------------------
-// wxRegion
+// wxRegionIterator
 //-----------------------------------------------------------------------------
 
+#if OLDCODE
+
 IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator,wxObject);
 
 wxRegionIterator::wxRegionIterator()
@@ -472,22 +495,22 @@ void wxRegionIterator::Reset( const wxRegion& region )
 
 wxRegionIterator::operator bool () const
 {
-    return m_current < (size_t)m_region.GetRectList()->Number();
+    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
 }
 
 bool wxRegionIterator::HaveRects() const
 {
-    return m_current < (size_t)m_region.GetRectList()->Number();
+    return m_region.GetRectList() && m_current < (size_t)m_region.GetRectList()->Number();
 }
 
 void wxRegionIterator::operator ++ ()
 {
-    if (m_current < (size_t)m_region.GetRectList()->Number()) ++m_current;
+    if (HaveRects()) ++m_current;
 }
 
 void wxRegionIterator::operator ++ (int)
 {
-    if (m_current < (size_t)m_region.GetRectList()->Number()) ++m_current;
+    if (HaveRects()) ++m_current;
 }
 
 wxCoord wxRegionIterator::GetX() const
@@ -522,4 +545,135 @@ wxCoord wxRegionIterator::GetH() const
     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