'Set to Unspecified' -> 'Set Value to Unspecified'

[wxWidgets.git] / src / gtk1 / dcclient.cpp

diff --git a/src/gtk1/dcclient.cpp b/src/gtk1/dcclient.cpp
index 1a0bee58b5e8140a3aeb1bffd808a58e4358ae5e..5b5774bbab629853e5b20d174866314e36f6f783 100644 (file)
--- a/src/gtk1/dcclient.cpp
+++ b/src/gtk1/dcclient.cpp
@@ -1,28 +1,31 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        gtk/dcclient.cpp
+// Name:        src/gtk1/dcclient.cpp

 // Purpose:
 // Author:      Robert Roebling
 // RCS-ID:      $Id$
 // Purpose:
 // Author:      Robert Roebling
 // RCS-ID:      $Id$

-// Copyright:   (c) 1998 Robert Roebling, Markus Holzem, Chris Breeze
+// Copyright:   (c) 1998 Robert Roebling, Chris Breeze

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "dcclient.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"

 
 #ifdef __VMS
 #define XCopyPlane XCOPYPLANE
 #endif
 
 
 #ifdef __VMS
 #define XCopyPlane XCOPYPLANE
 #endif
 

-#include "wx/dcclient.h"
-#include "wx/dcmemory.h"
-#include "wx/image.h"
-#include "wx/module.h"
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/math.h" // for floating-point functions
+    #include "wx/image.h"
+    #include "wx/module.h"
+#endif

 
 

-#include "wx/gtk/win_gtk.h"
+#include "wx/fontutil.h"

 
 

-#include <math.h>               // for floating-point functions
+#include "wx/gtk1/win_gtk.h"
+#include "wx/gtk1/dcclient.h"
+#include "wx/gtk1/dcmemory.h"

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


@@ -54,7 +57,7 @@
 static GdkPixmap  *hatches[num_hatches];
 static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;
 
 static GdkPixmap  *hatches[num_hatches];
 static GdkPixmap **hatch_bitmap = (GdkPixmap **) NULL;
 

-extern GtkWidget *wxRootWindow;
+extern GtkWidget *wxGetRootWindow();

 
 //-----------------------------------------------------------------------------
 // constants
 
 //-----------------------------------------------------------------------------
 // constants


@@ -77,57 +80,37 @@ static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
 
 #include "gdk/gdkprivate.h"
 
 
 #include "gdk/gdkprivate.h"
 

-void gdk_wx_draw_bitmap     (GdkDrawable  *drawable,
-                          GdkGC               *gc,
-                          GdkDrawable  *src,
-                          gint                xsrc,
-                          gint                ysrc,
-                          gint                xdest,
-                          gint                ydest,
-                          gint                width,
-                          gint                height)
+void gdk_wx_draw_bitmap(GdkDrawable  *drawable,
+                        GdkGC        *gc,
+                        GdkDrawable  *src,
+                        gint         xsrc,
+                        gint         ysrc,
+                        gint         xdest,
+                        gint         ydest,
+                        gint         width,
+                        gint         height)

 {
 {

-    gint src_width, src_height;
-#ifndef __WXGTK20__
+    wxCHECK_RET( drawable, wxT("NULL drawable in gdk_wx_draw_bitmap") );
+    wxCHECK_RET( src, wxT("NULL src in gdk_wx_draw_bitmap") );
+    wxCHECK_RET( gc, wxT("NULL gc in gdk_wx_draw_bitmap") );
+

     GdkWindowPrivate *drawable_private;
     GdkWindowPrivate *src_private;
     GdkGCPrivate *gc_private;
     GdkWindowPrivate *drawable_private;
     GdkWindowPrivate *src_private;
     GdkGCPrivate *gc_private;

-#endif

 
 

-    g_return_if_fail (drawable != NULL);
-    g_return_if_fail (src != NULL);
-    g_return_if_fail (gc != NULL);
-
-#ifdef __WXGTK20__
-    if (GDK_WINDOW_DESTROYED(drawable) || GDK_WINDOW_DESTROYED(src))
-        return;
-
-    gdk_drawable_get_size(src, &src_width, &src_height);
-#else

     drawable_private = (GdkWindowPrivate*) drawable;
     src_private = (GdkWindowPrivate*) src;
     if (drawable_private->destroyed || src_private->destroyed)
         return;
 
     drawable_private = (GdkWindowPrivate*) drawable;
     src_private = (GdkWindowPrivate*) src;
     if (drawable_private->destroyed || src_private->destroyed)
         return;
 

-    src_width = src_private->width;
-    src_height = src_private->height;
+    gint src_width = src_private->width;
+    gint src_height = src_private->height;

 
     gc_private = (GdkGCPrivate*) gc;
 
     gc_private = (GdkGCPrivate*) gc;

-#endif

 
     if (width == -1) width = src_width;
     if (height == -1) height = src_height;
 
 
     if (width == -1) width = src_width;
     if (height == -1) height = src_height;
 

-#ifdef __WXGTK20__
-    XCopyPlane( GDK_WINDOW_XDISPLAY(drawable),
-                GDK_WINDOW_XID(src),
-                GDK_WINDOW_XID(drawable),
-                GDK_GC_XGC(gc),
-                xsrc, ysrc,
-                width, height,
-                xdest, ydest,
-                1 );
-#else

     XCopyPlane( drawable_private->xdisplay,
                 src_private->xwindow,
                 drawable_private->xwindow,
     XCopyPlane( drawable_private->xdisplay,
                 src_private->xwindow,
                 drawable_private->xwindow,


@@ -136,15 +119,12 @@ void gdk_wx_draw_bitmap     (GdkDrawable  *drawable,
                 width, height,
                 xdest, ydest,
                 1 );
                 width, height,
                 xdest, ydest,
                 1 );

-#endif

 }
 
 //-----------------------------------------------------------------------------
 // Implement Pool of Graphic contexts. Creating them takes too much time.
 //-----------------------------------------------------------------------------
 
 }
 
 //-----------------------------------------------------------------------------
 // Implement Pool of Graphic contexts. Creating them takes too much time.
 //-----------------------------------------------------------------------------
 

-#define GC_POOL_SIZE 200
-

 enum wxPoolGCType
 {
    wxGC_ERROR = 0,
 enum wxPoolGCType
 {
    wxGC_ERROR = 0,


@@ -169,52 +149,108 @@ struct wxGC
     bool          m_used;
 };
 
     bool          m_used;
 };
 

-static wxGC wxGCPool[GC_POOL_SIZE];
+#define GC_POOL_ALLOC_SIZE 100
+
+static int wxGCPoolSize = 0;
+
+static wxGC *wxGCPool = NULL;

 
 static void wxInitGCPool()
 {
 
 static void wxInitGCPool()
 {

-    memset( wxGCPool, 0, GC_POOL_SIZE*sizeof(wxGC) );
+    // This really could wait until the first call to
+    // wxGetPoolGC, but we will make the first allocation
+    // now when other initialization is being performed.
+
+    // Set initial pool size.
+    wxGCPoolSize = GC_POOL_ALLOC_SIZE;
+
+    // Allocate initial pool.
+    wxGCPool = (wxGC *)malloc(wxGCPoolSize * sizeof(wxGC));
+    if (wxGCPool == NULL)
+    {
+        // If we cannot malloc, then fail with error
+        // when debug is enabled.  If debug is not enabled,
+        // the problem will eventually get caught
+        // in wxGetPoolGC.
+        wxFAIL_MSG( wxT("Cannot allocate GC pool") );
+        return;
+    }
+
+    // Zero initial pool.
+    memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC));

 }
 
 static void wxCleanUpGCPool()
 {
 }
 
 static void wxCleanUpGCPool()
 {

-    for (int i = 0; i < GC_POOL_SIZE; i++)
+    for (int i = 0; i < wxGCPoolSize; i++)

     {
         if (wxGCPool[i].m_gc)
             gdk_gc_unref( wxGCPool[i].m_gc );
     }
     {
         if (wxGCPool[i].m_gc)
             gdk_gc_unref( wxGCPool[i].m_gc );
     }

+
+    free(wxGCPool);
+    wxGCPool = NULL;
+    wxGCPoolSize = 0;

 }
 
 static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
 {
 }
 
 static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
 {

-    for (int i = 0; i < GC_POOL_SIZE; i++)
+    wxGC *pptr;
+
+    // Look for an available GC.
+    for (int i = 0; i < wxGCPoolSize; i++)

     {
         if (!wxGCPool[i].m_gc)
         {
             wxGCPool[i].m_gc = gdk_gc_new( window );
             gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE );
             wxGCPool[i].m_type = type;
     {
         if (!wxGCPool[i].m_gc)
         {
             wxGCPool[i].m_gc = gdk_gc_new( window );
             gdk_gc_set_exposures( wxGCPool[i].m_gc, FALSE );
             wxGCPool[i].m_type = type;

-            wxGCPool[i].m_used = FALSE;
+            wxGCPool[i].m_used = false;

         }
         if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type))
         {
         }
         if ((!wxGCPool[i].m_used) && (wxGCPool[i].m_type == type))
         {

-            wxGCPool[i].m_used = TRUE;
+            wxGCPool[i].m_used = true;

             return wxGCPool[i].m_gc;
         }
     }
 
             return wxGCPool[i].m_gc;
         }
     }
 

+    // We did not find an available GC.
+    // We need to grow the GC pool.
+    pptr = (wxGC *)realloc(wxGCPool,
+        (wxGCPoolSize + GC_POOL_ALLOC_SIZE)*sizeof(wxGC));
+    if (pptr != NULL)
+    {
+        // Initialize newly allocated pool.
+        wxGCPool = pptr;
+        memset(&wxGCPool[wxGCPoolSize], 0,
+            GC_POOL_ALLOC_SIZE*sizeof(wxGC));
+
+        // Initialize entry we will return.
+        wxGCPool[wxGCPoolSize].m_gc = gdk_gc_new( window );
+        gdk_gc_set_exposures( wxGCPool[wxGCPoolSize].m_gc, FALSE );
+        wxGCPool[wxGCPoolSize].m_type = type;
+        wxGCPool[wxGCPoolSize].m_used = true;
+
+        // Set new value of pool size.
+        wxGCPoolSize += GC_POOL_ALLOC_SIZE;
+
+        // Return newly allocated entry.
+        return wxGCPool[wxGCPoolSize-GC_POOL_ALLOC_SIZE].m_gc;
+    }
+
+    // The realloc failed.  Fall through to error.

     wxFAIL_MSG( wxT("No GC available") );
 
     wxFAIL_MSG( wxT("No GC available") );
 

-    return (GdkGC*) NULL;
+    return NULL;

 }
 
 static void wxFreePoolGC( GdkGC *gc )
 {
 }
 
 static void wxFreePoolGC( GdkGC *gc )
 {

-    for (int i = 0; i < GC_POOL_SIZE; i++)
+    for (int i = 0; i < wxGCPoolSize; i++)

     {
         if (wxGCPool[i].m_gc == gc)
         {
     {
         if (wxGCPool[i].m_gc == gc)
         {

-            wxGCPool[i].m_used = FALSE;
+            wxGCPool[i].m_used = false;

             return;
         }
     }
             return;
         }
     }


@@ -223,46 +259,44 @@ static void wxFreePoolGC( GdkGC *gc )
 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------

-// wxWindowDC
+// wxWindowDCImpl

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

-IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
+IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxDC)

 
 

-wxWindowDC::wxWindowDC()
+wxWindowDCImpl::wxWindowDCImpl(wxDC *owner)
+              : wxGTKDCImpl(owner)

 {
 {

-    m_penGC = (GdkGC *) NULL;
-    m_brushGC = (GdkGC *) NULL;
-    m_textGC = (GdkGC *) NULL;
-    m_bgGC = (GdkGC *) NULL;
-    m_cmap = (GdkColormap *) NULL;
-    m_isMemDC = FALSE;
-    m_isScreenDC = FALSE;
-    m_owner = (wxWindow *)NULL;
-#ifdef __WXGTK20__
-    m_context = (PangoContext *)NULL;
-    m_fontdesc = (PangoFontDescription *)NULL;
-#endif
+    m_penGC = NULL;
+    m_brushGC = NULL;
+    m_textGC = NULL;
+    m_bgGC = NULL;
+    m_cmap = NULL;
+    m_isMemDC = false;
+    m_isScreenDC = false;
+    m_owner = NULL;

 }
 
 }
 

-wxWindowDC::wxWindowDC( wxWindow *window )
+wxWindowDCImpl::wxWindowDCImpl(wxDC *owner, wxWindow *window)
+              : wxGTKDCImpl(owner)

 {
 {

-    m_penGC = (GdkGC *) NULL;
-    m_brushGC = (GdkGC *) NULL;
-    m_textGC = (GdkGC *) NULL;
-    m_bgGC = (GdkGC *) NULL;
-    m_cmap = (GdkColormap *) NULL;
-    m_owner = (wxWindow *)NULL;
-    m_isMemDC = FALSE;
-    m_isScreenDC = FALSE;
-    m_font = window->GetFont();
-

     wxASSERT_MSG( window, wxT("DC needs a window") );
 
     wxASSERT_MSG( window, wxT("DC needs a window") );
 

+    m_penGC = NULL;
+    m_brushGC = NULL;
+    m_textGC = NULL;
+    m_bgGC = NULL;
+    m_cmap = NULL;
+    m_owner = NULL;
+    m_isMemDC = false;
+    m_isScreenDC = false;
+    m_font = window->GetFont();
+

     GtkWidget *widget = window->m_wxwindow;
 
     GtkWidget *widget = window->m_wxwindow;
 

-    // some controls don't have m_wxwindow - like wxStaticBox, but the user
+    // Some controls don't have m_wxwindow - like wxStaticBox, but the user

     // code should still be able to create wxClientDCs for them, so we will
     // code should still be able to create wxClientDCs for them, so we will

-    // use the parent window here then
+    // use the parent window here then.

     if ( !widget )
     {
         window = window->GetParent();
     if ( !widget )
     {
         window = window->GetParent();


@@ -271,19 +305,14 @@ wxWindowDC::wxWindowDC( wxWindow *window )
 
     wxASSERT_MSG( widget, wxT("DC needs a widget") );
 
 
     wxASSERT_MSG( widget, wxT("DC needs a widget") );
 

-#ifdef __WXGTK20__
-    m_context = gtk_widget_get_pango_context( widget );
-    m_fontdesc = widget->style->font_desc;
-#endif
-

     GtkPizza *pizza = GTK_PIZZA( widget );
     m_window = pizza->bin_window;
 
     GtkPizza *pizza = GTK_PIZZA( widget );
     m_window = pizza->bin_window;
 

-    /* not realized ? */
+    // Window not realized ?

     if (!m_window)
     {
     if (!m_window)
     {

-         /* don't report problems */
-         m_ok = TRUE;
+         // Don't report problems as per MSW.
+         m_ok = true;

 
          return;
     }
 
          return;
     }


@@ -302,14 +331,14 @@ wxWindowDC::wxWindowDC( wxWindow *window )
     m_owner = window;
 }
 
     m_owner = window;
 }
 

-wxWindowDC::~wxWindowDC()
+wxWindowDCImpl::~wxWindowDCImpl()

 {
     Destroy();
 }
 
 {
     Destroy();
 }
 

-void wxWindowDC::SetUpDC()
+void wxWindowDCImpl::SetUpDC()

 {
 {

-    m_ok = TRUE;
+    m_ok = true;

 
     wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
 
 
     wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
 


@@ -320,8 +349,7 @@ void wxWindowDC::SetUpDC()
         m_textGC = wxGetPoolGC( m_window, wxTEXT_SCREEN );
         m_bgGC = wxGetPoolGC( m_window, wxBG_SCREEN );
     }
         m_textGC = wxGetPoolGC( m_window, wxTEXT_SCREEN );
         m_bgGC = wxGetPoolGC( m_window, wxBG_SCREEN );
     }

-    else
-    if (m_isMemDC && (((wxMemoryDC*)this)->m_selected.GetDepth() == 1))
+    else if (m_isMemDC && (((wxMemoryDCImpl*)this)->m_selected.GetDepth() == 1))

     {
         m_penGC = wxGetPoolGC( m_window, wxPEN_MONO );
         m_brushGC = wxGetPoolGC( m_window, wxBRUSH_MONO );
     {
         m_penGC = wxGetPoolGC( m_window, wxPEN_MONO );
         m_brushGC = wxGetPoolGC( m_window, wxBRUSH_MONO );


@@ -376,54 +404,57 @@ void wxWindowDC::SetUpDC()
     gdk_gc_set_function( m_penGC, GDK_COPY );
 
     /* clipping */
     gdk_gc_set_function( m_penGC, GDK_COPY );
 
     /* clipping */

-    gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
-    gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
-    gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
-    gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
+    gdk_gc_set_clip_rectangle( m_penGC, NULL );
+    gdk_gc_set_clip_rectangle( m_brushGC, NULL );
+    gdk_gc_set_clip_rectangle( m_textGC, NULL );
+    gdk_gc_set_clip_rectangle( m_bgGC, NULL );

 
     if (!hatch_bitmap)
     {
         hatch_bitmap    = hatches;
 
     if (!hatch_bitmap)
     {
         hatch_bitmap    = hatches;

-        hatch_bitmap[0] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, bdiag_bits, bdiag_width, bdiag_height );
-        hatch_bitmap[1] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cdiag_bits, cdiag_width, cdiag_height );
-        hatch_bitmap[2] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, fdiag_bits, fdiag_width, fdiag_height );
-        hatch_bitmap[3] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, cross_bits, cross_width, cross_height );
-        hatch_bitmap[4] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, horiz_bits, horiz_width, horiz_height );
-        hatch_bitmap[5] = gdk_bitmap_create_from_data( (GdkWindow *) NULL, verti_bits, verti_width, verti_height );
+        hatch_bitmap[0] = gdk_bitmap_create_from_data( NULL, bdiag_bits, bdiag_width, bdiag_height );
+        hatch_bitmap[1] = gdk_bitmap_create_from_data( NULL, cdiag_bits, cdiag_width, cdiag_height );
+        hatch_bitmap[2] = gdk_bitmap_create_from_data( NULL, fdiag_bits, fdiag_width, fdiag_height );
+        hatch_bitmap[3] = gdk_bitmap_create_from_data( NULL, cross_bits, cross_width, cross_height );
+        hatch_bitmap[4] = gdk_bitmap_create_from_data( NULL, horiz_bits, horiz_width, horiz_height );
+        hatch_bitmap[5] = gdk_bitmap_create_from_data( NULL, verti_bits, verti_width, verti_height );

     }
 }
 
     }
 }
 

-void wxWindowDC::DoGetSize( int* width, int* height ) const
+void wxWindowDCImpl::DoGetSize( int* width, int* height ) const

 {
 {

-    wxCHECK_RET( m_owner, _T("GetSize() doesn't work without window") );
+    wxCHECK_RET( m_owner, wxT("GetSize() doesn't work without window") );

 
     m_owner->GetSize(width, height);
 }
 
 
     m_owner->GetSize(width, height);
 }
 

-void wxWindowDC::DoFloodFill( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
-                           const wxColour &WXUNUSED(col), int WXUNUSED(style) )
+extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
+                          const wxColour & col, wxFloodFillStyle style);
+
+bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y,
+                             const wxColour& col, wxFloodFillStyle style)

 {
 {

-    wxFAIL_MSG( wxT("wxWindowDC::DoFloodFill not implemented") );
+    return wxDoFloodFill(GetOwner(), x, y, col, style);

 }
 
 }
 

-bool wxWindowDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
+bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const

 {
     // Generic (and therefore rather inefficient) method.
     // Could be improved.
     wxMemoryDC memdc;
     wxBitmap bitmap(1, 1);
     memdc.SelectObject(bitmap);
 {
     // Generic (and therefore rather inefficient) method.
     // Could be improved.
     wxMemoryDC memdc;
     wxBitmap bitmap(1, 1);
     memdc.SelectObject(bitmap);

-    memdc.Blit(0, 0, 1, 1, (wxDC*) this, x1, y1);
+    memdc.Blit(0, 0, 1, 1, GetOwner(), x1, y1);

     memdc.SelectObject(wxNullBitmap);
     memdc.SelectObject(wxNullBitmap);

-    
-    wxImage image(bitmap);
+
+    wxImage image = bitmap.ConvertToImage();

     col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
     col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));

-    return TRUE;
+    return true;

 }
 
 }
 

-void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
+void wxWindowDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_pen.GetStyle() != wxTRANSPARENT)
     {
 
     if (m_pen.GetStyle() != wxTRANSPARENT)
     {


@@ -435,9 +466,9 @@ void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
     }
 }
 
     }
 }
 

-void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
+void wxWindowDCImpl::DoCrossHair( wxCoord x, wxCoord y )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_pen.GetStyle() != wxTRANSPARENT)
     {
 
     if (m_pen.GetStyle() != wxTRANSPARENT)
     {


@@ -454,10 +485,10 @@ void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
     }
 }
 
     }
 }
 

-void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
+void wxWindowDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,

                             wxCoord xc, wxCoord yc )
 {
                             wxCoord xc, wxCoord yc )
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     wxCoord xx1 = XLOG2DEV(x1);
     wxCoord yy1 = YLOG2DEV(y1);
 
     wxCoord xx1 = XLOG2DEV(x1);
     wxCoord yy1 = YLOG2DEV(y1);


@@ -476,10 +507,10 @@ void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
         radius1 = 0.0;
         radius2 = 360.0;
     }
         radius1 = 0.0;
         radius2 = 360.0;
     }

-    else
-    if (radius == 0.0)
+    else if ( wxIsNullDouble(radius) )

     {
     {

-        radius1 = radius2 = 0.0;
+        radius1 =
+        radius2 = 0.0;

     }
     else
     {
     }
     else
     {


@@ -546,9 +577,9 @@ void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
     CalcBoundingBox (x2, y2);
 }
 
     CalcBoundingBox (x2, y2);
 }
 

-void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
+void wxWindowDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     wxCoord xx = XLOG2DEV(x);
     wxCoord yy = YLOG2DEV(y);
 
     wxCoord xx = XLOG2DEV(x);
     wxCoord yy = YLOG2DEV(y);


@@ -608,9 +639,9 @@ void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord
     CalcBoundingBox (x + width, y + height);
 }
 
     CalcBoundingBox (x + width, y + height);
 }
 

-void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
+void wxWindowDCImpl::DoDrawPoint( wxCoord x, wxCoord y )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window)
         gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
 
     if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window)
         gdk_draw_point( m_window, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );


@@ -618,102 +649,108 @@ void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
     CalcBoundingBox (x, y);
 }
 
     CalcBoundingBox (x, y);
 }
 

-void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
+void wxWindowDCImpl::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_pen.GetStyle() == wxTRANSPARENT) return;
     if (n <= 0) return;
 
 
     if (m_pen.GetStyle() == wxTRANSPARENT) return;
     if (n <= 0) return;
 

-    CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );

 
 

-    for (int i = 0; i < n-1; i++)
+    GdkPoint * const gpts = new GdkPoint[n];
+    if ( !gpts )

     {
     {

-        wxCoord x1 = XLOG2DEV(points[i].x + xoffset);
-        wxCoord x2 = XLOG2DEV(points[i+1].x + xoffset);
-        wxCoord y1 = YLOG2DEV(points[i].y + yoffset);     // oh, what a waste
-        wxCoord y2 = YLOG2DEV(points[i+1].y + yoffset);
+        wxFAIL_MSG( wxT("Cannot allocate PolyLine") );
+        return;
+    }

 
 

-        if (m_window)
-            gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
+    for (int i = 0; i < n; i++)
+    {
+        wxCoord x = points[i].x + xoffset,
+                y = points[i].y + yoffset;
+
+        CalcBoundingBox(x + xoffset, y + yoffset);

 
 

-        CalcBoundingBox( points[i+1].x + xoffset, points[i+1].y + yoffset );
+        gpts[i].x = XLOG2DEV(x);
+        gpts[i].y = YLOG2DEV(y);

     }
     }

+
+    gdk_draw_lines( m_window, m_penGC, gpts, n);
+
+    delete[] gpts;

 }
 
 }
 

-void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) )
+void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode WXUNUSED(fillStyle) )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (n <= 0) return;
 
 
     if (n <= 0) return;
 

-    GdkPoint *gdkpoints = new GdkPoint[n+1];
-    int i;
-    for (i = 0 ; i < n ; i++)
+    GdkPoint * const gpts = new GdkPoint[n];
+
+    for (int i = 0 ; i < n ; i++)

     {
     {

-        gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
-        gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
+        wxCoord x = points[i].x + xoffset,
+                y = points[i].y + yoffset;

 
 

-        CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset );
+        CalcBoundingBox(x + xoffset, y + yoffset);
+
+        gpts[i].x = XLOG2DEV(x);
+        gpts[i].y = YLOG2DEV(y);

     }
 
     }
 

-    if (m_window)
+    if (m_brush.GetStyle() == wxSOLID)

     {
     {

-        if (m_brush.GetStyle() != wxTRANSPARENT)
+        gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n );
+    }
+    else if (m_brush.GetStyle() != wxTRANSPARENT)
+    {
+        if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))

         {
         {

-            if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
-            {
-                gdk_gc_set_ts_origin( m_textGC,
-                                      m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
-                                      m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
-                gdk_draw_polygon( m_window, m_textGC, TRUE, gdkpoints, n );
-                gdk_gc_set_ts_origin( m_textGC, 0, 0 );
-            } else
-            if (IS_15_PIX_HATCH(m_brush.GetStyle()))
-            {
-                gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
-                gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
-                gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
-            } else
-            if (IS_16_PIX_HATCH(m_brush.GetStyle()))
-            {
-                gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
-                gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
-                gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
-            } else
-            if (m_brush.GetStyle() == wxSTIPPLE)
-            {
-                gdk_gc_set_ts_origin( m_brushGC,
-                                      m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
-                                      m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
-                gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
-                gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
-            }
-            else
-            {
-                gdk_draw_polygon( m_window, m_brushGC, TRUE, gdkpoints, n );
-            }
+            gdk_gc_set_ts_origin( m_textGC,
+                                  m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
+                                  m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
+            gdk_draw_polygon( m_window, m_textGC, TRUE, gpts, n );
+            gdk_gc_set_ts_origin( m_textGC, 0, 0 );
+        } else
+        if (IS_15_PIX_HATCH(m_brush.GetStyle()))
+        {
+            gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 15, m_deviceOriginY % 15 );
+            gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n );
+            gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
+        } else
+        if (IS_16_PIX_HATCH(m_brush.GetStyle()))
+        {
+            gdk_gc_set_ts_origin( m_brushGC, m_deviceOriginX % 16, m_deviceOriginY % 16 );
+            gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n );
+            gdk_gc_set_ts_origin( m_brushGC, 0, 0 );
+        } else
+        if (m_brush.GetStyle() == wxSTIPPLE)
+        {
+            gdk_gc_set_ts_origin( m_brushGC,
+                                  m_deviceOriginX % m_brush.GetStipple()->GetWidth(),
+                                  m_deviceOriginY % m_brush.GetStipple()->GetHeight() );
+            gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n );
+            gdk_gc_set_ts_origin( m_brushGC, 0, 0 );

         }
         }

-
-        if (m_pen.GetStyle() != wxTRANSPARENT)
+        else

         {
         {

-            for (i = 0 ; i < n ; i++)
-            {
-                gdk_draw_line( m_window, m_penGC,
-                               gdkpoints[i%n].x,
-                               gdkpoints[i%n].y,
-                               gdkpoints[(i+1)%n].x,
-                               gdkpoints[(i+1)%n].y);
-            }
+            gdk_draw_polygon( m_window, m_brushGC, TRUE, gpts, n );

         }
     }
 
         }
     }
 

-    delete[] gdkpoints;
+    if (m_pen.GetStyle() != wxTRANSPARENT)
+    {
+        gdk_draw_polygon( m_window, m_penGC, FALSE, gpts, n );
+
+    }
+
+    delete[] gpts;

 }
 
 }
 

-void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     wxCoord xx = XLOG2DEV(x);
     wxCoord yy = YLOG2DEV(y);
 
     wxCoord xx = XLOG2DEV(x);
     wxCoord yy = YLOG2DEV(y);


@@ -773,9 +810,9 @@ void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord h
     CalcBoundingBox( x + width, y + height );
 }
 
     CalcBoundingBox( x + width, y + height );
 }
 

-void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
+void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
 
 
     if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
 


@@ -793,7 +830,7 @@ void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wx
     // X drawing errors with small radii
     if (rr == 0)
     {
     // X drawing errors with small radii
     if (rr == 0)
     {

-        DrawRectangle( x, y, width, height );
+        DoDrawRectangle( x, y, width, height );

         return;
     }
 
         return;
     }
 


@@ -896,9 +933,9 @@ void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wx
     CalcBoundingBox( x + width, y + height );
 }
 
     CalcBoundingBox( x + width, y + height );
 }
 

-void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     wxCoord xx = XLOG2DEV(x);
     wxCoord yy = YLOG2DEV(y);
 
     wxCoord xx = XLOG2DEV(x);
     wxCoord yy = YLOG2DEV(y);


@@ -951,27 +988,27 @@ void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord hei
             gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
     }
 
             gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
     }
 

-    CalcBoundingBox( x - width, y - height );
+    CalcBoundingBox( x, y );

     CalcBoundingBox( x + width, y + height );
 }
 
     CalcBoundingBox( x + width, y + height );
 }
 

-void wxWindowDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
+void wxWindowDCImpl::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )

 {
     // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
 {
     // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why

-    DoDrawBitmap( (const wxBitmap&)icon, x, y, (bool)TRUE );
+    DoDrawBitmap( (const wxBitmap&)icon, x, y, true );

 }
 
 }
 

-void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
+void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap,

                                wxCoord x, wxCoord y,
                                bool useMask )
 {
                                wxCoord x, wxCoord y,
                                bool useMask )
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") );
 
     bool is_mono = (bitmap.GetBitmap() != NULL);
 
 
     wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") );
 
     bool is_mono = (bitmap.GetBitmap() != NULL);
 

-    /* scale/translate size and position */
+    // scale/translate size and position

     int xx = XLOG2DEV(x);
     int yy = YLOG2DEV(y);
 
     int xx = XLOG2DEV(x);
     int yy = YLOG2DEV(y);
 


@@ -986,7 +1023,7 @@ void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
     int ww = XLOG2DEVREL(w);
     int hh = YLOG2DEVREL(h);
 
     int ww = XLOG2DEVREL(w);
     int hh = YLOG2DEVREL(h);
 

-    /* compare to current clipping region */
+    // compare to current clipping region

     if (!m_currentClippingRegion.IsNull())
     {
         wxRegion tmp( xx,yy,ww,hh );
     if (!m_currentClippingRegion.IsNull())
     {
         wxRegion tmp( xx,yy,ww,hh );


@@ -995,228 +1032,264 @@ void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
             return;
     }
 
             return;
     }
 

-    /* scale bitmap if required */
-    wxBitmap use_bitmap;
+    // scale bitmap if required
+    wxBitmap use_bitmap = bitmap;

     if ((w != ww) || (h != hh))
     if ((w != ww) || (h != hh))

-    {
-        wxImage image( bitmap );
-        image.Rescale( ww, hh );
-        if (is_mono)
-            use_bitmap = image.ConvertToMonoBitmap(255,255,255);
-        else
-            use_bitmap = image.ConvertToBitmap();
-    }
-    else
-    {
-        use_bitmap = bitmap;
-    }
+        use_bitmap = use_bitmap.Rescale( 0, 0, ww, hh, ww, hh );
+
+    // NB: We can't render pixbufs with GTK+ < 2.2, we need to use pixmaps code.
+    //     Pixbufs-based bitmaps with alpha channel don't have a mask, so we
+    //     have to call GetPixmap() here -- it converts the pixbuf into pixmap
+    //     and also creates the mask as a side-effect:
+    use_bitmap.GetPixmap();

 
 

-    /* apply mask if any */
-    GdkBitmap *mask = (GdkBitmap *) NULL;
+    // apply mask if any
+    GdkBitmap *mask = NULL;

     if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
 
     if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
 

-        if (useMask && mask)
+    GdkBitmap *new_mask = NULL;
+
+    if (useMask && mask)
+    {
+        if (!m_currentClippingRegion.IsNull())

         {
         {

-            GdkBitmap *new_mask = (GdkBitmap*) NULL;
-            if (!m_currentClippingRegion.IsNull())
-            {
-                GdkColor col;
-                new_mask = gdk_pixmap_new( wxRootWindow->window, ww, hh, 1 );
-                GdkGC *gc = gdk_gc_new( new_mask );
-                col.pixel = 0;
-                gdk_gc_set_foreground( gc, &col );
-                gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
-                col.pixel = 0;
-                gdk_gc_set_background( gc, &col );
-                col.pixel = 1;
-                gdk_gc_set_foreground( gc, &col );
-                gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
-                gdk_gc_set_clip_origin( gc, -xx, -yy );
-                gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
-                gdk_gc_set_stipple( gc, mask );
-                gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
-                gdk_gc_unref( gc );
-            }
+            GdkColor col;
+            new_mask = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, 1 );
+            GdkGC *gc = gdk_gc_new( new_mask );
+            col.pixel = 0;
+            gdk_gc_set_foreground( gc, &col );
+            gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
+            col.pixel = 0;
+            gdk_gc_set_background( gc, &col );
+            col.pixel = 1;
+            gdk_gc_set_foreground( gc, &col );
+            gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
+            gdk_gc_set_clip_origin( gc, -xx, -yy );
+            gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
+            gdk_gc_set_stipple( gc, mask );
+            gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, ww, hh );
+            gdk_gc_unref( gc );
+        }

 
 

-            if (is_mono)
-            {
-                if (new_mask)
-                    gdk_gc_set_clip_mask( m_textGC, new_mask );
-                else
-                    gdk_gc_set_clip_mask( m_textGC, mask );
-                gdk_gc_set_clip_origin( m_textGC, xx, yy );
-            }
+        if (is_mono)
+        {
+            if (new_mask)
+                gdk_gc_set_clip_mask( m_textGC, new_mask );

             else
             else

-            {
-                if (new_mask)
-                    gdk_gc_set_clip_mask( m_penGC, new_mask );
-                else
-                    gdk_gc_set_clip_mask( m_penGC, mask );
-                gdk_gc_set_clip_origin( m_penGC, xx, yy );
-            }
+                gdk_gc_set_clip_mask( m_textGC, mask );
+            gdk_gc_set_clip_origin( m_textGC, xx, yy );
+        }
+        else
+        {

             if (new_mask)
             if (new_mask)

-                gdk_bitmap_unref( new_mask );
+                gdk_gc_set_clip_mask( m_penGC, new_mask );
+            else
+                gdk_gc_set_clip_mask( m_penGC, mask );
+            gdk_gc_set_clip_origin( m_penGC, xx, yy );

         }
         }

+    }

 
 

-    /* Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
-       drawing a mono-bitmap (XBitmap) we use the current text GC */
+    // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
+    // drawing a mono-bitmap (XBitmap) we use the current text GC

     if (is_mono)
     if (is_mono)

+    {

         gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), 0, 0, xx, yy, -1, -1 );
         gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), 0, 0, xx, yy, -1, -1 );

+    }

     else
     else

-        gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
+    {
+        gdk_draw_pixmap(m_window, m_penGC,
+                        use_bitmap.GetPixmap(),
+                        0, 0, xx, yy, -1, -1);
+    }

 
 

-    /* remove mask again if any */
+    // remove mask again if any

     if (useMask && mask)
     {
         if (is_mono)
         {
     if (useMask && mask)
     {
         if (is_mono)
         {

-            gdk_gc_set_clip_mask( m_textGC, (GdkBitmap *) NULL );
+            gdk_gc_set_clip_mask( m_textGC, NULL );

             gdk_gc_set_clip_origin( m_textGC, 0, 0 );
             if (!m_currentClippingRegion.IsNull())
                 gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
         }
         else
         {
             gdk_gc_set_clip_origin( m_textGC, 0, 0 );
             if (!m_currentClippingRegion.IsNull())
                 gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
         }
         else
         {

-            gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
+            gdk_gc_set_clip_mask( m_penGC, NULL );

             gdk_gc_set_clip_origin( m_penGC, 0, 0 );
             if (!m_currentClippingRegion.IsNull())
                 gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
         }
     }
             gdk_gc_set_clip_origin( m_penGC, 0, 0 );
             if (!m_currentClippingRegion.IsNull())
                 gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
         }
     }

+
+    if (new_mask)
+        gdk_bitmap_unref( new_mask );

 }
 
 }
 

-bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
-                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
-                         int logical_func, bool useMask )
+bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
+                             wxCoord width, wxCoord height,
+                             wxDC *source,
+                             wxCoord xsrc, wxCoord ysrc,
+                             wxRasterOperationMode logical_func,
+                             bool useMask,
+                             wxCoord xsrcMask, wxCoord ysrcMask )

 {
 {

-   /* this is the nth try to get this utterly useless function to
-      work. it now completely ignores the scaling or translation
-      of the source dc, but scales correctly on the target dc and
-      knows about possible mask information in a memory dc. */
+    wxCHECK_MSG( IsOk(), false, wxT("invalid window dc") );

 
 

-    wxCHECK_MSG( Ok(), FALSE, wxT("invalid window dc") );
+    wxCHECK_MSG( source, false, wxT("invalid source dc") );

 
 

-    wxCHECK_MSG( source, FALSE, wxT("invalid source dc") );
+    if (!m_window) return false;

 
 

-    if (!m_window) return FALSE;
+    // transform the source DC coords to the device ones
+    xsrc = source->LogicalToDeviceX(xsrc);
+    ysrc = source->LogicalToDeviceY(ysrc);

 
 

-    wxClientDC *srcDC = (wxClientDC*)source;
-    wxMemoryDC *memDC = (wxMemoryDC*)source;
+    wxWindowDCImpl *srcDC = wxDynamicCast(source->GetImpl(), wxWindowDCImpl);
+    wxCHECK_MSG( srcDC, false, "source must be a window DC" );

 
 

-    bool use_bitmap_method = FALSE;
-    bool is_mono = FALSE;
+    // FIXME: this cast is not always valid, see the code using m_isMemDC
+    wxMemoryDCImpl *memDC = static_cast<wxMemoryDCImpl *>(srcDC);
+
+    bool use_bitmap_method = false;
+    bool is_mono = false;
+
+    if (xsrcMask == -1 && ysrcMask == -1)
+    {
+        xsrcMask = xsrc;
+        ysrcMask = ysrc;
+    }

 
     if (srcDC->m_isMemDC)
     {
 
     if (srcDC->m_isMemDC)
     {

-        if (!memDC->m_selected.Ok()) return FALSE;
+        if (!memDC->m_selected.Ok()) return false;

 
 

-        /* we use the "XCopyArea" way to copy a memory dc into
-           y different window if the memory dc BOTH
-           a) doesn't have any mask or its mask isn't used
-           b) it is clipped
-           c) is not 1-bit */
+        is_mono = (memDC->m_selected.GetDepth() == 1);
+
+        // we use the "XCopyArea" way to copy a memory dc into
+        // a different window if the memory dc BOTH
+        // a) doesn't have any mask or its mask isn't used
+        // b) it is clipped
+        // c) is not 1-bit

 
         if (useMask && (memDC->m_selected.GetMask()))
         {
 
         if (useMask && (memDC->m_selected.GetMask()))
         {

-           /* we HAVE TO use the direct way for memory dcs
-              that have mask since the XCopyArea doesn't know
-              about masks */
-            use_bitmap_method = TRUE;
+            // we HAVE TO use the direct way for memory dcs
+            // that have mask since the XCopyArea doesn't know
+            // about masks
+            use_bitmap_method = true;

         }
         }

-        else if (memDC->m_selected.GetDepth() == 1)
+        else if (is_mono)

         {
         {

-           /* we HAVE TO use the direct way for memory dcs
-              that are bitmaps because XCopyArea doesn't cope
-              with different bit depths */
-            is_mono = TRUE;
-            use_bitmap_method = TRUE;
+            // we HAVE TO use the direct way for memory dcs
+            // that are bitmaps because XCopyArea doesn't cope
+            // with different bit depths
+            use_bitmap_method = true;

         }
         else if ((xsrc == 0) && (ysrc == 0) &&
                  (width == memDC->m_selected.GetWidth()) &&
                  (height == memDC->m_selected.GetHeight()))
         {
         }
         else if ((xsrc == 0) && (ysrc == 0) &&
                  (width == memDC->m_selected.GetWidth()) &&
                  (height == memDC->m_selected.GetHeight()))
         {

-           /* we SHOULD use the direct way if all of the bitmap
-              in the memory dc is copied in which case XCopyArea
-              wouldn't be able able to boost performace by reducing
-              the area to be scaled */
-            use_bitmap_method = TRUE;
+            // we SHOULD use the direct way if all of the bitmap
+            // in the memory dc is copied in which case XCopyArea
+            // wouldn't be able able to boost performace by reducing
+            // the area to be scaled
+            use_bitmap_method = true;

         }
         else
         {
         }
         else
         {

-            use_bitmap_method = FALSE;
+            use_bitmap_method = false;

         }
     }
 
     CalcBoundingBox( xdest, ydest );
     CalcBoundingBox( xdest + width, ydest + height );
 
         }
     }
 
     CalcBoundingBox( xdest, ydest );
     CalcBoundingBox( xdest + width, ydest + height );
 

-    /* scale/translate size and position */
+    // scale/translate size and position

     wxCoord xx = XLOG2DEV(xdest);
     wxCoord yy = YLOG2DEV(ydest);
 
     wxCoord ww = XLOG2DEVREL(width);
     wxCoord hh = YLOG2DEVREL(height);
 
     wxCoord xx = XLOG2DEV(xdest);
     wxCoord yy = YLOG2DEV(ydest);
 
     wxCoord ww = XLOG2DEVREL(width);
     wxCoord hh = YLOG2DEVREL(height);
 

-    /* compare to current clipping region */
+    // compare to current clipping region

     if (!m_currentClippingRegion.IsNull())
     {
         wxRegion tmp( xx,yy,ww,hh );
         tmp.Intersect( m_currentClippingRegion );
         if (tmp.IsEmpty())
     if (!m_currentClippingRegion.IsNull())
     {
         wxRegion tmp( xx,yy,ww,hh );
         tmp.Intersect( m_currentClippingRegion );
         if (tmp.IsEmpty())

-            return TRUE;
+            return true;

     }
 
     }
 

-    int old_logical_func = m_logicalFunction;
+    wxRasterOperationMode old_logical_func = m_logicalFunction;

     SetLogicalFunction( logical_func );
 
     if (use_bitmap_method)
     {
     SetLogicalFunction( logical_func );
 
     if (use_bitmap_method)
     {

-        /* scale/translate bitmap size */
+        // scale/translate bitmap size

         wxCoord bm_width = memDC->m_selected.GetWidth();
         wxCoord bm_height = memDC->m_selected.GetHeight();
 
         wxCoord bm_width = memDC->m_selected.GetWidth();
         wxCoord bm_height = memDC->m_selected.GetHeight();
 

+        // Get clip coords for the bitmap. If we don't
+        // use wxBitmap::Rescale(), which can clip the
+        // bitmap, these are the same as the original
+        // coordinates
+        wxCoord cx = xx;
+        wxCoord cy = yy;
+        wxCoord cw = ww;
+        wxCoord ch = hh;
+
+        // interpret userscale of src too
+        double xsc,ysc;
+        memDC->GetUserScale(&xsc,&ysc);
+        bm_width = (int) (bm_width / xsc);
+        bm_height = (int) (bm_height / ysc);
+

         wxCoord bm_ww = XLOG2DEVREL( bm_width );
         wxCoord bm_hh = YLOG2DEVREL( bm_height );
 
         wxCoord bm_ww = XLOG2DEVREL( bm_width );
         wxCoord bm_hh = YLOG2DEVREL( bm_height );
 

-        /* scale bitmap if required */
+        // Scale bitmap if required

         wxBitmap use_bitmap;
         wxBitmap use_bitmap;

-
-        if ((bm_width != bm_ww) || (bm_height != bm_hh))
+        if ((memDC->m_selected.GetWidth()!= bm_ww) || ( memDC->m_selected.GetHeight()!= bm_hh))

         {
         {

-            wxImage image( memDC->m_selected );
-            image = image.Scale( bm_ww, bm_hh );
-
-            if (is_mono)
-                use_bitmap = image.ConvertToMonoBitmap(255,255,255);
-            else
-                use_bitmap = image.ConvertToBitmap();
+            // This indicates that the blitting code below will get
+            // a clipped bitmap and therefore needs to move the origin
+            // accordingly
+            wxRegion tmp( xx,yy,ww,hh );
+            tmp.Intersect( m_currentClippingRegion );
+            tmp.GetBox(cx,cy,cw,ch);
+
+            // Scale and clipped bitmap
+            use_bitmap = memDC->m_selected.Rescale(cx-xx,cy-yy,cw,ch,bm_ww,bm_hh);

         }
         else
         {
         }
         else
         {

+            // Don't scale bitmap

             use_bitmap = memDC->m_selected;
         }
 
             use_bitmap = memDC->m_selected;
         }
 

-        /* apply mask if any */
-        GdkBitmap *mask = (GdkBitmap *) NULL;
+        // apply mask if any
+        GdkBitmap *mask = NULL;

         if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
 
         if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
 

+        GdkBitmap *new_mask = NULL;
+

         if (useMask && mask)
         {
         if (useMask && mask)
         {

-            GdkBitmap *new_mask = (GdkBitmap*) NULL;

             if (!m_currentClippingRegion.IsNull())
             {
                 GdkColor col;
             if (!m_currentClippingRegion.IsNull())
             {
                 GdkColor col;

-                new_mask = gdk_pixmap_new( wxRootWindow->window, bm_ww, bm_hh, 1 );
+                new_mask = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, 1 );

                 GdkGC *gc = gdk_gc_new( new_mask );
                 col.pixel = 0;
                 gdk_gc_set_foreground( gc, &col );
                 GdkGC *gc = gdk_gc_new( new_mask );
                 col.pixel = 0;
                 gdk_gc_set_foreground( gc, &col );

+                gdk_gc_set_ts_origin( gc, -xsrcMask, -ysrcMask);

                 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
                 col.pixel = 0;
                 gdk_gc_set_background( gc, &col );
                 col.pixel = 1;
                 gdk_gc_set_foreground( gc, &col );
                 gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );
                 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
                 col.pixel = 0;
                 gdk_gc_set_background( gc, &col );
                 col.pixel = 1;
                 gdk_gc_set_foreground( gc, &col );
                 gdk_gc_set_clip_region( gc, m_currentClippingRegion.GetRegion() );

-                gdk_gc_set_clip_origin( gc, -xx, -yy );
+                // was: gdk_gc_set_clip_origin( gc, -xx, -yy );
+                gdk_gc_set_clip_origin( gc, -cx, -cy );

                 gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
                 gdk_gc_set_stipple( gc, mask );
                 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );
                 gdk_gc_set_fill( gc, GDK_OPAQUE_STIPPLED );
                 gdk_gc_set_stipple( gc, mask );
                 gdk_draw_rectangle( new_mask, gc, TRUE, 0, 0, bm_ww, bm_hh );


@@ -1226,92 +1299,89 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord he
             if (is_mono)
             {
                 if (new_mask)
             if (is_mono)
             {
                 if (new_mask)

+                {

                     gdk_gc_set_clip_mask( m_textGC, new_mask );
                     gdk_gc_set_clip_mask( m_textGC, new_mask );

+                    gdk_gc_set_clip_origin( m_textGC, cx, cy );
+                }

                 else
                 else

+                {

                     gdk_gc_set_clip_mask( m_textGC, mask );
                     gdk_gc_set_clip_mask( m_textGC, mask );

-                gdk_gc_set_clip_origin( m_textGC, xx, yy );
+                    gdk_gc_set_clip_origin( m_textGC, cx-xsrcMask, cy-ysrcMask );
+                }

             }
             else
             {
                 if (new_mask)
             }
             else
             {
                 if (new_mask)

+                {

                     gdk_gc_set_clip_mask( m_penGC, new_mask );
                     gdk_gc_set_clip_mask( m_penGC, new_mask );

+                    gdk_gc_set_clip_origin( m_penGC, cx, cy );
+                }

                 else
                 else

+                {

                     gdk_gc_set_clip_mask( m_penGC, mask );
                     gdk_gc_set_clip_mask( m_penGC, mask );

-                gdk_gc_set_clip_origin( m_penGC, xx, yy );
+                    gdk_gc_set_clip_origin( m_penGC, cx-xsrcMask, cy-ysrcMask );
+                }

             }
             }

-            if (new_mask)
-                gdk_bitmap_unref( new_mask );

         }
 
         }
 

-        /* Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
-           drawing a mono-bitmap (XBitmap) we use the current text GC */
+        // Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
+        // drawing a mono-bitmap (XBitmap) we use the current text GC

 
         if (is_mono)
 
         if (is_mono)

-            gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, xx, yy, ww, hh );
+        {
+            // was: gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, xx, yy, ww, hh );
+            gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, cx, cy, cw, ch );
+        }

         else
         else

-            gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
+        {
+            // was: gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
+            gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, cx, cy, cw, ch );
+        }

 
 

-        /* remove mask again if any */
+        // remove mask again if any

         if (useMask && mask)
         {
             if (is_mono)
             {
         if (useMask && mask)
         {
             if (is_mono)
             {

-                gdk_gc_set_clip_mask( m_textGC, (GdkBitmap *) NULL );
+                gdk_gc_set_clip_mask( m_textGC, NULL );

                 gdk_gc_set_clip_origin( m_textGC, 0, 0 );
                 if (!m_currentClippingRegion.IsNull())
                     gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
             }
             else
             {
                 gdk_gc_set_clip_origin( m_textGC, 0, 0 );
                 if (!m_currentClippingRegion.IsNull())
                     gdk_gc_set_clip_region( m_textGC, m_currentClippingRegion.GetRegion() );
             }
             else
             {

-                gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
+                gdk_gc_set_clip_mask( m_penGC, NULL );

                 gdk_gc_set_clip_origin( m_penGC, 0, 0 );
                 if (!m_currentClippingRegion.IsNull())
                     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
             }
         }
                 gdk_gc_set_clip_origin( m_penGC, 0, 0 );
                 if (!m_currentClippingRegion.IsNull())
                     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
             }
         }

+
+        if (new_mask)
+            gdk_bitmap_unref( new_mask );

     }
     }

-    else /* use_bitmap_method */
+    else // use_bitmap_method

     {
         if ((width != ww) || (height != hh))
         {
     {
         if ((width != ww) || (height != hh))
         {

-            /* draw source window into a bitmap as we cannot scale
-               a window in contrast to a bitmap. this would actually
-               work with memory dcs as well, but we'd lose the mask
-               information and waste one step in this process since
-               a memory already has a bitmap. all this is slightly
-               inefficient as we could take an XImage directly from
-               an X window, but we'd then also have to care that
-               the window is not outside the screen (in which case
-               we'd get a BadMatch or what not).
-               Is a double XGetImage and combined XGetPixel and
-               XPutPixel really faster? I'm not sure. look at wxXt
-               for a different implementation of the same problem. */
-
-            wxBitmap bitmap( width, height );
-
-            /* copy including child window contents */
-            gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
-            gdk_window_copy_area( bitmap.GetPixmap(), m_penGC, 0, 0,
-                                  srcDC->GetWindow(),
-                                  xsrc, ysrc, width, height );
-            gdk_gc_set_subwindow( m_penGC, GDK_CLIP_BY_CHILDREN );
-
-            /* scale image */
-            wxImage image( bitmap );
-            image = image.Scale( ww, hh );
-
-            /* convert to bitmap */
-            bitmap = image.ConvertToBitmap();
-
-            /* draw scaled bitmap */
-            gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
-
+            // get clip coords
+            wxRegion tmp( xx,yy,ww,hh );
+            tmp.Intersect( m_currentClippingRegion );
+            wxCoord cx,cy,cw,ch;
+            tmp.GetBox(cx,cy,cw,ch);
+
+            // rescale bitmap
+            wxBitmap bitmap = memDC->m_selected.Rescale( cx-xx, cy-yy, cw, ch, ww, hh );
+
+            // draw scaled bitmap
+            // was: gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
+            gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, cx, cy, -1, -1 );

         }
         else
         {
         }
         else
         {

-            /* No scaling and not a memory dc with a mask either */
+            // No scaling and not a memory dc with a mask either

 
 

-            /* copy including child window contents */
+            // copy including child window contents

             gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
             gdk_window_copy_area( m_window, m_penGC, xx, yy,
                                   srcDC->GetWindow(),
             gdk_gc_set_subwindow( m_penGC, GDK_INCLUDE_INFERIORS );
             gdk_window_copy_area( m_window, m_penGC, xx, yy,
                                   srcDC->GetWindow(),


@@ -1321,52 +1391,35 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord he
     }
 
     SetLogicalFunction( old_logical_func );
     }
 
     SetLogicalFunction( old_logical_func );

-    return TRUE;
+
+    return true;

 }
 
 }
 

-void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
+void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (!m_window) return;
 
 
     if (!m_window) return;
 

+    if (text.empty()) return;
+

     GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
     wxCHECK_RET( font, wxT("invalid font") );
 
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
     wxCHECK_RET( font, wxT("invalid font") );
 

-#if defined(__WXGTK20__)
-    wxCHECK_RET( m_context, wxT("no Pango context") );
-#endif
-

     x = XLOG2DEV(x);
     y = YLOG2DEV(y);
 
     x = XLOG2DEV(x);
     y = YLOG2DEV(y);
 

-#if defined(__WXGTK20__) && wxUSE_WCHAR_T
-    /* FIXME: the layout engine should probably be abstracted at a higher level in wxDC... */
-    PangoLayout *layout = pango_layout_new(m_context);
-    pango_layout_set_font_description(layout, m_fontdesc);
-    {
-        wxWX2MBbuf data = text.mb_str(wxConvUTF8);
-        pango_layout_set_text(layout, data, strlen(data));
-    }
-    PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
-    PangoRectangle rect;
-    pango_layout_line_get_extents(line, NULL, &rect);
-    wxCoord width = rect.width;
-    wxCoord height = rect.height;
-    gdk_draw_layout( m_window, m_textGC, x, y, layout );
-#else

     wxCoord width = gdk_string_width( font, text.mbc_str() );
     wxCoord height = font->ascent + font->descent;
     wxCoord width = gdk_string_width( font, text.mbc_str() );
     wxCoord height = font->ascent + font->descent;

-    /* CMB 21/5/98: draw text background if mode is wxSOLID */
-    if (m_backgroundMode == wxSOLID)
+
+    if ( m_backgroundMode == wxSOLID )

     {
         gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() );
         gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height );
         gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
     }
     gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() );
     {
         gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() );
         gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height );
         gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
     }
     gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() );

-#endif

 
     /* CMB 17/7/98: simple underline: ignores scaling and underlying
        X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS
 
     /* CMB 17/7/98: simple underline: ignores scaling and underlying
        X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS


@@ -1378,46 +1431,50 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
         gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
     }
 
         gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
     }
 

-#if defined(__WXGTK20__) && wxUSE_WCHAR_T
-    g_object_unref( G_OBJECT( layout ) );
-#endif
-

     width = wxCoord(width / m_scaleX);
     height = wxCoord(height / m_scaleY);
     CalcBoundingBox (x + width, y + height);
     CalcBoundingBox (x, y);
 }
 
     width = wxCoord(width / m_scaleX);
     height = wxCoord(height / m_scaleY);
     CalcBoundingBox (x + width, y + height);
     CalcBoundingBox (x, y);
 }
 

-void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
+
+// TODO: There is an example of rotating text with GTK2 that would probably be
+// a better approach here:
+//           http://www.daa.com.au/pipermail/pygtk/2003-April/005052.html
+
+void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )

 {
 {

-    if (angle == 0.0)
+    if ( wxIsNullDouble(angle) )

     {
     {

-        DrawText(text, x, y);
+        DoDrawText(text, x, y);

         return;
     }
 
         return;
     }
 

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (!m_window) return;
 
 
     if (!m_window) return;
 

+    wxCoord w;
+    wxCoord h;
+

     GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
     wxCHECK_RET( font, wxT("invalid font") );
 
     // the size of the text
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
 
     wxCHECK_RET( font, wxT("invalid font") );
 
     // the size of the text

-    wxCoord w = gdk_string_width( font, text.mbc_str() );
-    wxCoord h = font->ascent + font->descent;
+    w = gdk_string_width( font, text.mbc_str() );
+    h = font->ascent + font->descent;

 
     // draw the string normally
     wxBitmap src(w, h);
     wxMemoryDC dc;
     dc.SelectObject(src);
     dc.SetFont(GetFont());
 
     // draw the string normally
     wxBitmap src(w, h);
     wxMemoryDC dc;
     dc.SelectObject(src);
     dc.SetFont(GetFont());

-    dc.SetBackground(*wxWHITE_BRUSH);
+    dc.SetBackground(*wxBLACK_BRUSH);

     dc.SetBrush(*wxBLACK_BRUSH);
     dc.Clear();
     dc.SetBrush(*wxBLACK_BRUSH);
     dc.Clear();

+    dc.SetTextForeground( *wxWHITE );

     dc.DrawText(text, 0, 0);
     dc.DrawText(text, 0, 0);

-    dc.SetFont(wxNullFont);

     dc.SelectObject(wxNullBitmap);
 
     // Calculate the size of the rotated bounding box.
     dc.SelectObject(wxNullBitmap);
 
     // Calculate the size of the rotated bounding box.


@@ -1440,47 +1497,40 @@ void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
             minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
             minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
 
             minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
             minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
 

-    // prepare to blit-with-rotate the bitmap to the DC
-    wxImage image(src);

 
 

-    GdkColor *colText = m_textForegroundColour.GetColor(),
-             *colBack = m_textBackgroundColour.GetColor();
+    wxImage image = src.ConvertToImage();

 
 

-    bool textColSet = TRUE;
+    image.ConvertColourToAlpha( m_textForegroundColour.Red(),
+                                m_textForegroundColour.Green(),
+                                m_textForegroundColour.Blue() );
+    image = image.Rotate( rad, wxPoint(0,0) );

 
 

-    unsigned char *data = image.GetData();
+    int i_angle = (int) angle;
+    i_angle = i_angle % 360;
+    if (i_angle < 0)
+        i_angle += 360;
+    int xoffset = 0;
+    if ((i_angle >= 90.0) && (i_angle < 270.0))
+        xoffset = image.GetWidth();
+    int yoffset = 0;
+    if ((i_angle >= 0.0) && (i_angle < 180.0))
+        yoffset = image.GetHeight();

 
 

-    // paint pixel by pixel
-    for ( wxCoord srcX = 0; srcX < w; srcX++ )
-    {
-        for ( wxCoord srcY = 0; srcY < h; srcY++ )
-        {
-            // transform source coords to dest coords
-            double r = sqrt((double)srcX*srcX + srcY*srcY);
-            double angleOrig = atan2((double)srcY, (double)srcX) - rad;
-            wxCoord dstX = (wxCoord)(r*cos(angleOrig) + 0.5),
-                    dstY = (wxCoord)(r*sin(angleOrig) + 0.5);
-
-            // black pixel?
-            bool textPixel = data[(srcY*w + srcX)*3] == 0;
-            if ( textPixel || (m_backgroundMode == wxSOLID) )
-            {
-                // change colour if needed
-                if ( textPixel != textColSet )
-                {
-                    gdk_gc_set_foreground( m_textGC, textPixel ? colText
-                                                               : colBack );
+    if ((i_angle >= 0) && (i_angle < 90))
+        yoffset -= (int)( cos(rad)*h );
+    if ((i_angle >= 90) && (i_angle < 180))
+        xoffset -= (int)( sin(rad)*h );
+    if ((i_angle >= 180) && (i_angle < 270))
+        yoffset -= (int)( cos(rad)*h );
+    if ((i_angle >= 270) && (i_angle < 360))
+        xoffset -= (int)( sin(rad)*h );

 
 

-                    textColSet = textPixel;
-                }
+    int i_x = x - xoffset;
+    int i_y = y - yoffset;
+
+    src = image;
+    DoDrawBitmap( src, i_x, i_y, true );

 
 

-                // don't use DrawPoint() because it uses the current pen
-                // colour, and we don't need it here
-                gdk_draw_point( m_window, m_textGC,
-                                XLOG2DEV(x + dstX), YLOG2DEV(y + dstY) );
-            }
-        }
-    }

 
     // it would be better to draw with non underlined font and draw the line
     // manually here (it would be more straight...)
 
     // it would be better to draw with non underlined font and draw the line
     // manually here (it would be more straight...)


@@ -1493,30 +1543,47 @@ void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
     }
 #endif // 0
 
     }
 #endif // 0
 

-    // restore the font colour
-    gdk_gc_set_foreground( m_textGC, colText );
-

     // update the bounding box
     CalcBoundingBox(x + minX, y + minY);
     CalcBoundingBox(x + maxX, y + maxY);
 }
 
     // update the bounding box
     CalcBoundingBox(x + minX, y + minY);
     CalcBoundingBox(x + maxX, y + maxY);
 }
 

-void wxWindowDC::DoGetTextExtent(const wxString &string,
+void wxWindowDCImpl::DoGetTextExtent(const wxString &string,

                                  wxCoord *width, wxCoord *height,
                                  wxCoord *descent, wxCoord *externalLeading,
                                  wxCoord *width, wxCoord *height,
                                  wxCoord *descent, wxCoord *externalLeading,

-                                 wxFont *theFont) const
+                                 const wxFont *theFont) const

 {
 {

+    if ( width )
+        *width = 0;
+    if ( height )
+        *height = 0;
+    if ( descent )
+        *descent = 0;
+    if ( externalLeading )
+        *externalLeading = 0;
+
+    if (string.empty())
+    {
+        return;
+    }
+

     wxFont fontToUse = m_font;
     wxFont fontToUse = m_font;

-    if (theFont) fontToUse = *theFont;
+    if (theFont)
+        fontToUse = *theFont;

 
     GdkFont *font = fontToUse.GetInternalFont( m_scaleY );
 
     GdkFont *font = fontToUse.GetInternalFont( m_scaleY );

-    if (width) (*width) = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX);
-    if (height) (*height) = wxCoord((font->ascent + font->descent) / m_scaleY);
-    if (descent) (*descent) = wxCoord(font->descent / m_scaleY);
-    if (externalLeading) (*externalLeading) = 0;  // ??
+    if ( !font )
+        return;
+
+    if (width)
+        *width = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX);
+    if (height)
+        *height = wxCoord((font->ascent + font->descent) / m_scaleY);
+    if (descent)
+        *descent = wxCoord(font->descent / m_scaleY);

 }
 
 }
 

-wxCoord wxWindowDC::GetCharWidth() const
+wxCoord wxWindowDCImpl::GetCharWidth() const

 {
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
     wxCHECK_MSG( font, -1, wxT("invalid font") );
 {
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
     wxCHECK_MSG( font, -1, wxT("invalid font") );


@@ -1524,7 +1591,7 @@ wxCoord wxWindowDC::GetCharWidth() const
     return wxCoord(gdk_string_width( font, "H" ) / m_scaleX);
 }
 
     return wxCoord(gdk_string_width( font, "H" ) / m_scaleX);
 }
 

-wxCoord wxWindowDC::GetCharHeight() const
+wxCoord wxWindowDCImpl::GetCharHeight() const

 {
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
     wxCHECK_MSG( font, -1, wxT("invalid font") );
 {
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
     wxCHECK_MSG( font, -1, wxT("invalid font") );


@@ -1532,12 +1599,17 @@ wxCoord wxWindowDC::GetCharHeight() const
     return wxCoord((font->ascent + font->descent) / m_scaleY);
 }
 
     return wxCoord((font->ascent + font->descent) / m_scaleY);
 }
 

-void wxWindowDC::Clear()
+void wxWindowDCImpl::Clear()

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (!m_window) return;
 
 
     if (!m_window) return;
 

+    // VZ: the code below results in infinite recursion and crashes when
+    //     dc.Clear() is done from OnPaint() so I disable it for now.
+    //     I don't know what the correct fix is but Clear() surely should not
+    //     reenter OnPaint()!
+#if 0

     /* - we either are a memory dc or have a window as the
        owner. anything else shouldn't happen.
        - we don't use gdk_window_clear() as we don't set
     /* - we either are a memory dc or have a window as the
        owner. anything else shouldn't happen.
        - we don't use gdk_window_clear() as we don't set


@@ -1547,9 +1619,7 @@ void wxWindowDC::Clear()
 
     if (m_owner)
     {
 
     if (m_owner)
     {

-        int width,height;
-        m_owner->GetSize( &width, &height );
-        gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+        m_owner->Clear();

         return;
     }
 
         return;
     }
 


@@ -1560,19 +1630,21 @@ void wxWindowDC::Clear()
         gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
         return;
     }
         gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
         return;
     }

+#else // 1
+    int width,height;
+    GetSize( &width, &height );
+    gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+#endif // 0/1

 }
 
 }
 

-void wxWindowDC::SetFont( const wxFont &font )
+void wxWindowDCImpl::SetFont( const wxFont &font )

 {
     m_font = font;
 {
     m_font = font;

-#ifdef __WXGTK20__
-    // fix fontdesc?
-#endif

 }
 
 }
 

-void wxWindowDC::SetPen( const wxPen &pen )
+void wxWindowDCImpl::SetPen( const wxPen &pen )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_pen == pen) return;
 
 
     if (m_pen == pen) return;
 


@@ -1596,6 +1668,12 @@ void wxWindowDC::SetPen( const wxPen &pen )
                    ( fabs((double) XLOG2DEVREL(width)) +
                      fabs((double) YLOG2DEVREL(width)) ) / 2.0;
         width = (int)w;
                    ( fabs((double) XLOG2DEVREL(width)) +
                      fabs((double) YLOG2DEVREL(width)) ) / 2.0;
         width = (int)w;

+        if ( !width )
+        {
+            // width can't be 0 or an internal GTK error occurs inside
+            // gdk_gc_set_dashes() below
+            width = 1;
+        }

     }
 
     static const wxGTKDash dotted[] = {1, 1};
     }
 
     static const wxGTKDash dotted[] = {1, 1};


@@ -1655,13 +1733,12 @@ void wxWindowDC::SetPen( const wxPen &pen )
         default:
         {
             lineStyle = GDK_LINE_SOLID;
         default:
         {
             lineStyle = GDK_LINE_SOLID;

-            req_dash = (wxGTKDash*)NULL;
+            req_dash = NULL;

             req_nb_dash = 0;
             break;
         }
     }
 
             req_nb_dash = 0;
             break;
         }
     }
 

-#if (GTK_MINOR_VERSION > 0) || (GTK_MAJOR_VERSION > 1)

     if (req_dash && req_nb_dash)
     {
         wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];
     if (req_dash && req_nb_dash)
     {
         wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];


@@ -1678,7 +1755,6 @@ void wxWindowDC::SetPen( const wxPen &pen )
             gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
         }
     }
             gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
         }
     }

-#endif

 
     GdkCapStyle capStyle = GDK_CAP_ROUND;
     switch (m_pen.GetCap())
 
     GdkCapStyle capStyle = GDK_CAP_ROUND;
     switch (m_pen.GetCap())


@@ -1716,9 +1792,9 @@ void wxWindowDC::SetPen( const wxPen &pen )
     gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
 }
 
     gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
 }
 

-void wxWindowDC::SetBrush( const wxBrush &brush )
+void wxWindowDCImpl::SetBrush( const wxBrush &brush )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_brush == brush) return;
 
 
     if (m_brush == brush) return;
 


@@ -1753,7 +1829,7 @@ void wxWindowDC::SetBrush( const wxBrush &brush )
         gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
     }
 
         gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
     }
 

-    if (IS_HATCH(m_brush.GetStyle()))
+    if (m_brush.IsHatch())

     {
         gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
         int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
     {
         gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
         int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;


@@ -1761,12 +1837,12 @@ void wxWindowDC::SetBrush( const wxBrush &brush )
     }
 }
 
     }
 }
 

-void wxWindowDC::SetBackground( const wxBrush &brush )
+void wxWindowDCImpl::SetBackground( const wxBrush &brush )

 {
    /* CMB 21/7/98: Added SetBackground. Sets background brush
     * for Clear() and bg colour for shapes filled with cross-hatch brush */
 
 {
    /* CMB 21/7/98: Added SetBackground. Sets background brush
     * for Clear() and bg colour for shapes filled with cross-hatch brush */
 

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_backgroundBrush == brush) return;
 
 
     if (m_backgroundBrush == brush) return;
 


@@ -1798,7 +1874,7 @@ void wxWindowDC::SetBackground( const wxBrush &brush )
         }
     }
 
         }
     }
 

-    if (IS_HATCH(m_backgroundBrush.GetStyle()))
+    if (m_backgroundBrush.IsHatch())

     {
         gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
         int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
     {
         gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
         int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;


@@ -1806,9 +1882,9 @@ void wxWindowDC::SetBackground( const wxBrush &brush )
     }
 }
 
     }
 }
 

-void wxWindowDC::SetLogicalFunction( int function )
+void wxWindowDCImpl::SetLogicalFunction( wxRasterOperationMode function )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (m_logicalFunction == function)
         return;
 
     if (m_logicalFunction == function)
         return;


@@ -1817,12 +1893,11 @@ void wxWindowDC::SetLogicalFunction( int function )
     if (!m_window)
         return;
 
     if (!m_window)
         return;
 

-    GdkFunction mode = GDK_COPY;
+    GdkFunction mode;

     switch (function)
     {
         case wxXOR:          mode = GDK_XOR;           break;
         case wxINVERT:       mode = GDK_INVERT;        break;
     switch (function)
     {
         case wxXOR:          mode = GDK_XOR;           break;
         case wxINVERT:       mode = GDK_INVERT;        break;

-#if (GTK_MINOR_VERSION > 0)

         case wxOR_REVERSE:   mode = GDK_OR_REVERSE;    break;
         case wxAND_REVERSE:  mode = GDK_AND_REVERSE;   break;
         case wxCLEAR:        mode = GDK_CLEAR;         break;
         case wxOR_REVERSE:   mode = GDK_OR_REVERSE;    break;
         case wxAND_REVERSE:  mode = GDK_AND_REVERSE;   break;
         case wxCLEAR:        mode = GDK_CLEAR;         break;


@@ -1839,12 +1914,9 @@ void wxWindowDC::SetLogicalFunction( int function )
 
         // unsupported by GTK
         case wxNOR:          mode = GDK_COPY;          break;
 
         // unsupported by GTK
         case wxNOR:          mode = GDK_COPY;          break;

-#endif

         default:
         default:

-        {

            wxFAIL_MSG( wxT("unsupported logical function") );
            wxFAIL_MSG( wxT("unsupported logical function") );

-           break;
-        }
+           mode = GDK_COPY;

     }
 
     m_logicalFunction = function;
     }
 
     m_logicalFunction = function;


@@ -1858,39 +1930,45 @@ void wxWindowDC::SetLogicalFunction( int function )
     gdk_gc_set_function( m_textGC, mode );
 }
 
     gdk_gc_set_function( m_textGC, mode );
 }
 

-void wxWindowDC::SetTextForeground( const wxColour &col )
+void wxWindowDCImpl::SetTextForeground( const wxColour &col )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
 

-    if (m_textForegroundColour == col) return;
+    // don't set m_textForegroundColour to an invalid colour as we'd crash
+    // later then (we use m_textForegroundColour.GetColor() without checking
+    // in a few places)
+    if ( !col.Ok() || (m_textForegroundColour == col) )
+        return;

 
     m_textForegroundColour = col;
 
     m_textForegroundColour = col;

-    if (!m_textForegroundColour.Ok()) return;

 
 

-    if (!m_window) return;
-
-    m_textForegroundColour.CalcPixel( m_cmap );
-    gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
+    if ( m_window )
+    {
+        m_textForegroundColour.CalcPixel( m_cmap );
+        gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
+    }

 }
 
 }
 

-void wxWindowDC::SetTextBackground( const wxColour &col )
+void wxWindowDCImpl::SetTextBackground( const wxColour &col )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
 

-    if (m_textBackgroundColour == col) return;
+    // same as above
+    if ( !col.Ok() || (m_textBackgroundColour == col) )
+        return;

 
     m_textBackgroundColour = col;
 
     m_textBackgroundColour = col;

-    if (!m_textBackgroundColour.Ok()) return;

 
 

-    if (!m_window) return;
-
-    m_textBackgroundColour.CalcPixel( m_cmap );
-    gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
+    if ( m_window )
+    {
+        m_textBackgroundColour.CalcPixel( m_cmap );
+        gdk_gc_set_background( m_textGC, m_textBackgroundColour.GetColor() );
+    }

 }
 
 }
 

-void wxWindowDC::SetBackgroundMode( int mode )
+void wxWindowDCImpl::SetBackgroundMode( int mode )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     m_backgroundMode = mode;
 
 
     m_backgroundMode = mode;
 


@@ -1906,14 +1984,14 @@ void wxWindowDC::SetBackgroundMode( int mode )
     }
 }
 
     }
 }
 

-void wxWindowDC::SetPalette( const wxPalette& WXUNUSED(palette) )
+void wxWindowDCImpl::SetPalette( const wxPalette& WXUNUSED(palette) )

 {
 {

-    wxFAIL_MSG( wxT("wxWindowDC::SetPalette not implemented") );
+    wxFAIL_MSG( wxT("wxWindowDCImpl::SetPalette not implemented") );

 }
 
 }
 

-void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+void wxWindowDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (!m_window) return;
 
 
     if (!m_window) return;
 


@@ -1935,7 +2013,7 @@ void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoo
 
     wxCoord xx, yy, ww, hh;
     m_currentClippingRegion.GetBox( xx, yy, ww, hh );
 
     wxCoord xx, yy, ww, hh;
     m_currentClippingRegion.GetBox( xx, yy, ww, hh );

-    wxDC::DoSetClippingRegion( xx, yy, ww, hh );
+    wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh );

 
     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
     gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
 
     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
     gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );


@@ -1943,9 +2021,9 @@ void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoo
     gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
 }
 
     gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
 }
 

-void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion &region  )
+void wxWindowDCImpl::DoSetDeviceClippingRegion( const wxRegion &region  )

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
     if (region.Empty())
     {
 
     if (region.Empty())
     {


@@ -1967,7 +2045,7 @@ void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion &region  )
 
     wxCoord xx, yy, ww, hh;
     m_currentClippingRegion.GetBox( xx, yy, ww, hh );
 
     wxCoord xx, yy, ww, hh;
     m_currentClippingRegion.GetBox( xx, yy, ww, hh );

-    wxDC::DoSetClippingRegion( xx, yy, ww, hh );
+    wxGTKDCImpl::DoSetClippingRegion( xx, yy, ww, hh );

 
     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
     gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );
 
     gdk_gc_set_clip_region( m_penGC, m_currentClippingRegion.GetRegion() );
     gdk_gc_set_clip_region( m_brushGC, m_currentClippingRegion.GetRegion() );


@@ -1975,11 +2053,11 @@ void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion &region  )
     gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
 }
 
     gdk_gc_set_clip_region( m_bgGC, m_currentClippingRegion.GetRegion() );
 }
 

-void wxWindowDC::DestroyClippingRegion()
+void wxWindowDCImpl::DestroyClippingRegion()

 {
 {

-    wxCHECK_RET( Ok(), wxT("invalid window dc") );
+    wxCHECK_RET( IsOk(), wxT("invalid window dc") );

 
 

-    wxDC::DestroyClippingRegion();
+    wxGTKDCImpl::DestroyClippingRegion();

 
     m_currentClippingRegion.Clear();
 
 
     m_currentClippingRegion.Clear();
 


@@ -1992,10 +2070,10 @@ void wxWindowDC::DestroyClippingRegion()
 
     if (m_currentClippingRegion.IsEmpty())
     {
 
     if (m_currentClippingRegion.IsEmpty())
     {

-        gdk_gc_set_clip_rectangle( m_penGC, (GdkRectangle *) NULL );
-        gdk_gc_set_clip_rectangle( m_brushGC, (GdkRectangle *) NULL );
-        gdk_gc_set_clip_rectangle( m_textGC, (GdkRectangle *) NULL );
-        gdk_gc_set_clip_rectangle( m_bgGC, (GdkRectangle *) NULL );
+        gdk_gc_set_clip_rectangle( m_penGC, NULL );
+        gdk_gc_set_clip_rectangle( m_brushGC, NULL );
+        gdk_gc_set_clip_rectangle( m_textGC, NULL );
+        gdk_gc_set_clip_rectangle( m_bgGC, NULL );

     }
     else
     {
     }
     else
     {


@@ -2006,45 +2084,42 @@ void wxWindowDC::DestroyClippingRegion()
     }
 }
 
     }
 }
 

-void wxWindowDC::Destroy()
+void wxWindowDCImpl::Destroy()

 {
     if (m_penGC) wxFreePoolGC( m_penGC );
 {
     if (m_penGC) wxFreePoolGC( m_penGC );

-    m_penGC = (GdkGC*) NULL;
+    m_penGC = NULL;

     if (m_brushGC) wxFreePoolGC( m_brushGC );
     if (m_brushGC) wxFreePoolGC( m_brushGC );

-    m_brushGC = (GdkGC*) NULL;
+    m_brushGC = NULL;

     if (m_textGC) wxFreePoolGC( m_textGC );
     if (m_textGC) wxFreePoolGC( m_textGC );

-    m_textGC = (GdkGC*) NULL;
+    m_textGC = NULL;

     if (m_bgGC) wxFreePoolGC( m_bgGC );
     if (m_bgGC) wxFreePoolGC( m_bgGC );

-    m_bgGC = (GdkGC*) NULL;
+    m_bgGC = NULL;

 }
 
 }
 

-void wxWindowDC::ComputeScaleAndOrigin()
+void wxWindowDCImpl::ComputeScaleAndOrigin()

 {
 {

-    /* CMB: copy scale to see if it changes */
-    double origScaleX = m_scaleX;
-    double origScaleY = m_scaleY;
-
-    wxDC::ComputeScaleAndOrigin();
-
-    /* CMB: if scale has changed call SetPen to recalulate the line width */
-    if ((m_scaleX != origScaleX || m_scaleY != origScaleY) &&
-        (m_pen.Ok()))
-    {
-      /* this is a bit artificial, but we need to force wxDC to think
-         the pen has changed */
-      wxPen pen = m_pen;
-      m_pen = wxNullPen;
-      SetPen( pen );
-  }
+    const wxRealPoint origScale(m_scaleX, m_scaleY);
+
+    wxGTKDCImpl::ComputeScaleAndOrigin();
+
+    // if scale has changed call SetPen to recalulate the line width
+    if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.Ok() )
+    {
+        // this is a bit artificial, but we need to force wxDC to think the pen
+        // has changed
+        wxPen pen = m_pen;
+        m_pen = wxNullPen;
+        SetPen( pen );
+    }

 }
 
 // Resolution in pixels per logical inch
 }
 
 // Resolution in pixels per logical inch

-wxSize wxWindowDC::GetPPI() const
+wxSize wxWindowDCImpl::GetPPI() const

 {
     return wxSize( (int) (m_mm_to_pix_x * 25.4 + 0.5), (int) (m_mm_to_pix_y * 25.4 + 0.5));
 }
 
 {
     return wxSize( (int) (m_mm_to_pix_x * 25.4 + 0.5), (int) (m_mm_to_pix_y * 25.4 + 0.5));
 }
 

-int wxWindowDC::GetDepth() const
+int wxWindowDCImpl::GetDepth() const

 {
     wxFAIL_MSG(wxT("not implemented"));
 
 {
     wxFAIL_MSG(wxT("not implemented"));
 


@@ -2053,46 +2128,80 @@ int wxWindowDC::GetDepth() const
 
 
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------

-// wxPaintDC
+// wxPaintDCImpl

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

-IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxClientDC)
+IMPLEMENT_ABSTRACT_CLASS(wxPaintDCImpl, wxClientDCImpl)

 
 

-wxPaintDC::wxPaintDC( wxWindow *win )
-         : wxClientDC( win )
+// Limit the paint region to the window size. Sometimes
+// the paint region is too big, and this risks X11 errors
+static void wxLimitRegionToSize(wxRegion& region, const wxSize& sz)
+{
+    wxRect originalRect = region.GetBox();
+    wxRect rect(originalRect);
+    if (rect.width + rect.x > sz.x)
+        rect.width = sz.x - rect.x;
+    if (rect.height + rect.y > sz.y)
+        rect.height = sz.y - rect.y;
+    if (rect != originalRect)
+    {
+        region = wxRegion(rect);
+        wxLogTrace(wxT("painting"), wxT("Limiting region from %d, %d, %d, %d to %d, %d, %d, %d\n"),
+                   originalRect.x, originalRect.y, originalRect.width, originalRect.height,
+                   rect.x, rect.y, rect.width, rect.height);
+    }
+}
+
+wxPaintDCImpl::wxPaintDCImpl(wxDC *owner, wxWindow *win)
+             : wxClientDCImpl(owner, win)

 {
 #if USE_PAINT_REGION
     if (!win->m_clipPaintRegion)
         return;
 
 {
 #if USE_PAINT_REGION
     if (!win->m_clipPaintRegion)
         return;
 

+    wxSize sz = win->GetSize();

     m_paintClippingRegion = win->GetUpdateRegion();
     m_paintClippingRegion = win->GetUpdateRegion();

+    wxLimitRegionToSize(m_paintClippingRegion, sz);
+

     GdkRegion *region = m_paintClippingRegion.GetRegion();
     if ( region )
     {
         m_currentClippingRegion.Union( m_paintClippingRegion );
     GdkRegion *region = m_paintClippingRegion.GetRegion();
     if ( region )
     {
         m_currentClippingRegion.Union( m_paintClippingRegion );

+        wxLimitRegionToSize(m_currentClippingRegion, sz);
+
+        if (sz.x <= 0 || sz.y <= 0)
+            return ;

 
         gdk_gc_set_clip_region( m_penGC, region );
         gdk_gc_set_clip_region( m_brushGC, region );
         gdk_gc_set_clip_region( m_textGC, region );
         gdk_gc_set_clip_region( m_bgGC, region );
     }
 
         gdk_gc_set_clip_region( m_penGC, region );
         gdk_gc_set_clip_region( m_brushGC, region );
         gdk_gc_set_clip_region( m_textGC, region );
         gdk_gc_set_clip_region( m_bgGC, region );
     }

-#endif
+#endif // USE_PAINT_REGION

 }
 
 //-----------------------------------------------------------------------------
 }
 
 //-----------------------------------------------------------------------------

-// wxClientDC
+// wxClientDCImpl

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

-IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
+IMPLEMENT_ABSTRACT_CLASS(wxClientDCImpl, wxWindowDCImpl)

 
 

-wxClientDC::wxClientDC( wxWindow *win )
-          : wxWindowDC( win )
+wxClientDCImpl::wxClientDCImpl(wxDC *owner, wxWindow *win)
+              : wxWindowDCImpl(owner, win)

 {
 {

+    wxCHECK_RET( win, wxT("NULL window in wxClientDCImpl::wxClientDCImpl") );
+
+#ifdef __WXUNIVERSAL__
+    wxPoint ptOrigin = win->GetClientAreaOrigin();
+    SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
+    wxSize size = win->GetClientSize();
+    SetClippingRegion(wxPoint(0, 0), size);
+#endif // __WXUNIVERSAL__

 }
 
 }
 

-void wxClientDC::DoGetSize(int *width, int *height) const
+void wxClientDCImpl::DoGetSize(int *width, int *height) const

 {
 {

-    wxCHECK_RET( m_owner, _T("GetSize() doesn't work without window") );
+    wxCHECK_RET( m_owner, wxT("GetSize() doesn't work without window") );

 
     m_owner->GetClientSize( width, height );
 }
 
     m_owner->GetClientSize( width, height );
 }


@@ -2116,7 +2225,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
 bool wxDCModule::OnInit()
 {
     wxInitGCPool();
 bool wxDCModule::OnInit()
 {
     wxInitGCPool();

-    return TRUE;
+    return true;

 }
 
 void wxDCModule::OnExit()
 }
 
 void wxDCModule::OnExit()