X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/375fc5a970eca2b3d0f2eec47c8e8cdaf5a1761c..5875d39c9ba19f518e691792524f2fd03261c825:/src/gtk1/dcclient.cpp?ds=sidebyside

diff --git a/src/gtk1/dcclient.cpp b/src/gtk1/dcclient.cpp
index 92ae53ff9d..bf324de310 100644
--- a/src/gtk1/dcclient.cpp
+++ b/src/gtk1/dcclient.cpp
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "dcclient.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -27,7 +23,7 @@
 
 #include "wx/gtk/win_gtk.h"
 
-#include <math.h>               // for floating-point functions
+#include "wx/math.h" // for floating-point functions
 
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
@@ -92,47 +88,42 @@ void gdk_wx_draw_bitmap(GdkDrawable  *drawable,
                         gint         width,
                         gint         height)
 {
+    wxCHECK_RET( drawable, _T("NULL drawable in gdk_wx_draw_bitmap") );
+    wxCHECK_RET( src, _T("NULL src in gdk_wx_draw_bitmap") );
+    wxCHECK_RET( gc, _T("NULL gc in gdk_wx_draw_bitmap") );
+
+#ifdef __WXGTK20__
     gint src_width, src_height;
-#ifndef __WXGTK20__
+    gdk_drawable_get_size(src, &src_width, &src_height);
+    if (width == -1) width = src_width;
+    if (height == -1) height = src_height;
+
+    XCopyPlane( GDK_WINDOW_XDISPLAY(drawable),
+                GDK_WINDOW_XID(src),
+                GDK_WINDOW_XID(drawable),
+                GDK_GC_XGC(gc),
+                xsrc, ysrc,
+                width, height,
+                0, 0,
+                1 );
+#else
     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;
 
-    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;
-#endif
 
     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,
@@ -148,8 +139,6 @@ void gdk_wx_draw_bitmap(GdkDrawable  *drawable,
 // Implement Pool of Graphic contexts. Creating them takes too much time.
 //-----------------------------------------------------------------------------
 
-#define GC_POOL_SIZE 200
-
 enum wxPoolGCType
 {
    wxGC_ERROR = 0,
@@ -185,10 +174,10 @@ static void wxInitGCPool()
     // 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)
@@ -196,11 +185,11 @@ static void wxInitGCPool()
         // 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.
+        // in wxGetPoolGC.
         wxFAIL_MSG( wxT("Cannot allocate GC pool") );
         return;
     }
-    
+
     // Zero initial pool.
     memset(wxGCPool, 0, wxGCPoolSize * sizeof(wxGC));
 }
@@ -221,7 +210,7 @@ static void wxCleanUpGCPool()
 static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
 {
     wxGC *pptr;
-    
+
     // Look for an available GC.
     for (int i = 0; i < wxGCPoolSize; i++)
     {
@@ -230,11 +219,11 @@ static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
             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))
         {
-            wxGCPool[i].m_used = TRUE;
+            wxGCPool[i].m_used = true;
             return wxGCPool[i].m_gc;
         }
     }
@@ -242,27 +231,27 @@ static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
     // 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));
+        (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.    
+        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;
-        
+        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") );
 
@@ -275,7 +264,7 @@ static void wxFreePoolGC( GdkGC *gc )
     {
         if (wxGCPool[i].m_gc == gc)
         {
-            wxGCPool[i].m_used = FALSE;
+            wxGCPool[i].m_used = false;
             return;
         }
     }
@@ -296,8 +285,8 @@ wxWindowDC::wxWindowDC()
     m_textGC = (GdkGC *) NULL;
     m_bgGC = (GdkGC *) NULL;
     m_cmap = (GdkColormap *) NULL;
-    m_isMemDC = FALSE;
-    m_isScreenDC = FALSE;
+    m_isMemDC = false;
+    m_isScreenDC = false;
     m_owner = (wxWindow *)NULL;
 #ifdef __WXGTK20__
     m_context = (PangoContext *)NULL;
@@ -316,8 +305,8 @@ wxWindowDC::wxWindowDC( wxWindow *window )
     m_bgGC = (GdkGC *) NULL;
     m_cmap = (GdkColormap *) NULL;
     m_owner = (wxWindow *)NULL;
-    m_isMemDC = FALSE;
-    m_isScreenDC = FALSE;
+    m_isMemDC = false;
+    m_isScreenDC = false;
     m_font = window->GetFont();
 
     GtkWidget *widget = window->m_wxwindow;
@@ -346,7 +335,7 @@ wxWindowDC::wxWindowDC( wxWindow *window )
     if (!m_window)
     {
          // Don't report problems as per MSW.
-         m_ok = TRUE;
+         m_ok = true;
 
          return;
     }
@@ -368,7 +357,7 @@ wxWindowDC::wxWindowDC( wxWindow *window )
 wxWindowDC::~wxWindowDC()
 {
     Destroy();
-    
+
 #ifdef __WXGTK20__
     if (m_layout)
         g_object_unref( G_OBJECT( m_layout ) );
@@ -379,7 +368,7 @@ wxWindowDC::~wxWindowDC()
 
 void wxWindowDC::SetUpDC()
 {
-    m_ok = TRUE;
+    m_ok = true;
 
     wxASSERT_MSG( !m_penGC, wxT("GCs already created") );
 
@@ -470,7 +459,7 @@ void wxWindowDC::DoGetSize( int* width, int* height ) const
     m_owner->GetSize(width, height);
 }
 
-extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y, 
+extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
                           const wxColour & col, int style);
 
 bool wxWindowDC::DoFloodFill(wxCoord x, wxCoord y,
@@ -491,7 +480,7 @@ bool wxWindowDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
 
     wxImage image = bitmap.ConvertToImage();
     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 )
@@ -549,10 +538,10 @@ void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
         radius1 = 0.0;
         radius2 = 360.0;
     }
-    else
-    if (radius == 0.0)
+    else if ( wxIsNullDouble(radius) )
     {
-        radius1 = radius2 = 0.0;
+        radius1 =
+        radius2 = 0.0;
     }
     else
     {
@@ -705,7 +694,7 @@ void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord
         return;
     }
 
-    for (int i = 0; i < n; i++) 
+    for (int i = 0; i < n; i++)
     {
         wxCoord x1 = XLOG2DEV(points[i].x + xoffset);
         wxCoord y1 = YLOG2DEV(points[i].y + yoffset);
@@ -778,6 +767,7 @@ void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoor
 
         if (m_pen.GetStyle() != wxTRANSPARENT)
         {
+/*
             for (i = 0 ; i < n ; i++)
             {
                 gdk_draw_line( m_window, m_penGC,
@@ -786,6 +776,9 @@ void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoor
                                gdkpoints[(i+1)%n].x,
                                gdkpoints[(i+1)%n].y);
             }
+*/
+            gdk_draw_polygon( m_window, m_penGC, FALSE, gdkpoints, n );
+
         }
     }
 
@@ -1039,7 +1032,7 @@ void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord hei
 void wxWindowDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
 {
     // 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,
@@ -1052,7 +1045,7 @@ void wxWindowDC::DoDrawBitmap( const wxBitmap &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);
 
@@ -1067,7 +1060,7 @@ void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
     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 );
@@ -1076,79 +1069,104 @@ void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
             return;
     }
 
-    /* scale bitmap if required */
-    wxBitmap use_bitmap;
+    // scale bitmap if required
+    wxBitmap use_bitmap = bitmap;
     if ((w != ww) || (h != hh))
-    {
-        wxImage image = bitmap.ConvertToImage();
-        image.Rescale( ww, hh );
-        if (is_mono)
-            use_bitmap = wxBitmap(image.ConvertToMono(255,255,255), 1);
-        else
-            use_bitmap = wxBitmap(image);
-    }
-    else
-    {
-        use_bitmap = bitmap;
-    }
-    
-    /* apply mask if any */
+        use_bitmap = use_bitmap.Rescale( 0, 0, ww, hh, ww, hh );
+
+#if !GTK_CHECK_VERSION(2,2,0)
+    // 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();
+#endif
+
+    // apply mask if any
     GdkBitmap *mask = (GdkBitmap *) NULL;
     if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
 
-        if (useMask && mask)
+    GdkBitmap *new_mask = (GdkBitmap*) NULL;
+
+    if (useMask && mask)
+    {
+        if (!m_currentClippingRegion.IsNull())
         {
-            GdkBitmap *new_mask = (GdkBitmap*) NULL;
-#ifndef __WXGTK20__  // TODO fix crash
-            if (!m_currentClippingRegion.IsNull())
-            {
-                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 );
-            }
-#endif
-            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 );
-            }
+            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
-            {
-                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)
-                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)
+    {
+#ifdef __WXGTK20__
+        GdkPixmap *bitmap2 = gdk_pixmap_new( wxGetRootWindow()->window, ww, hh, -1 );
+        GdkGC *gc = gdk_gc_new( bitmap2 );
+        gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
+        gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
+        gdk_wx_draw_bitmap( bitmap2, gc, use_bitmap.GetBitmap(), 0, 0, 0, 0, -1, -1 );
+
+        gdk_draw_drawable( m_window, m_textGC, bitmap2, 0, 0, xx, yy, -1, -1 );
+
+        gdk_bitmap_unref( bitmap2 );
+        gdk_gc_unref( gc );
+#else
         gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), 0, 0, xx, yy, -1, -1 );
+#endif
+    }
     else
-        gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
+    {
+#if GTK_CHECK_VERSION(2,2,0)
+        if (!gtk_check_version(2,2,0) && use_bitmap.HasPixbuf())
+        {
+            gdk_draw_pixbuf(m_window, m_penGC,
+                            use_bitmap.GetPixbuf(),
+                            0, 0, xx, yy, -1, -1,
+                            GDK_RGB_DITHER_NORMAL, xx, yy);
+        }
+        else
+#endif
+        {
+            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)
@@ -1166,6 +1184,9 @@ void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
                 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,
@@ -1176,93 +1197,87 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
                          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( Ok(), 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;
-
-#if 1
     // transform the source DC coords to the device ones
     xsrc = source->XLOG2DEV(xsrc);
     ysrc = source->YLOG2DEV(ysrc);
-#endif
 
     wxClientDC *srcDC = (wxClientDC*)source;
     wxMemoryDC *memDC = (wxMemoryDC*)source;
 
-    bool use_bitmap_method = FALSE;
-    bool is_mono = FALSE;
+    bool use_bitmap_method = false;
+    bool is_mono = false;
 
-    /* TODO: use the mask origin when drawing transparently */
     if (xsrcMask == -1 && ysrcMask == -1)
     {
-        xsrcMask = xsrc; ysrcMask = ysrc;
+        xsrcMask = xsrc;
+        ysrcMask = ysrc;
     }
 
     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()))
         {
-           /* 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()))
         {
-           /* 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
         {
-            use_bitmap_method = FALSE;
+            use_bitmap_method = false;
         }
     }
 
     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);
 
-    /* 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())
-            return TRUE;
+            return true;
     }
 
     int old_logical_func = m_logicalFunction;
@@ -1270,39 +1285,56 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
 
     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();
 
+        // 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 );
 
-        /* scale bitmap if required */
+        // Scale bitmap if required
         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.ConvertToImage();
-            image = image.Scale( bm_ww, bm_hh );
-
-            if (is_mono)
-                use_bitmap = wxBitmap(image.ConvertToMono(255,255,255), 1);
-            else
-                use_bitmap = wxBitmap(image);
+            // 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
         {
+            // Don't scale bitmap
             use_bitmap = memDC->m_selected;
         }
 
-        /* apply mask if any */
+        // apply mask if any
         GdkBitmap *mask = (GdkBitmap *) NULL;
         if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
 
+        GdkBitmap *new_mask = (GdkBitmap*) NULL;
+
         if (useMask && mask)
         {
-            GdkBitmap *new_mask = (GdkBitmap*) NULL;
-#ifndef __WXGTK20__  // TODO fix crash
             if (!m_currentClippingRegion.IsNull())
             {
                 GdkColor col;
@@ -1310,48 +1342,77 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
                 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_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_unref( gc );
             }
-#endif
+
             if (is_mono)
             {
                 if (new_mask)
+                {
                     gdk_gc_set_clip_mask( m_textGC, new_mask );
+                    gdk_gc_set_clip_origin( m_textGC, cx, cy );
+                }
                 else
+                {
                     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)
+                {
                     gdk_gc_set_clip_mask( m_penGC, new_mask );
+                    gdk_gc_set_clip_origin( m_penGC, cx, cy );
+                }
                 else
+                {
                     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)
-            gdk_wx_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, xx, yy, ww, hh );
+        {
+#ifdef __WXGTK20__
+            GdkPixmap *bitmap = gdk_pixmap_new( wxGetRootWindow()->window, bm_ww, bm_hh, -1 );
+            GdkGC *gc = gdk_gc_new( bitmap );
+            gdk_gc_set_foreground( gc, m_textForegroundColour.GetColor() );
+            gdk_gc_set_background( gc, m_textBackgroundColour.GetColor() );
+            gdk_wx_draw_bitmap( bitmap, gc, use_bitmap.GetBitmap(), 0, 0, 0, 0, -1, -1 );
+
+            gdk_draw_drawable( m_window, m_textGC, bitmap, xsrc, ysrc, cx, cy, cw, ch );
+
+            gdk_bitmap_unref( bitmap );
+            gdk_gc_unref( gc );
+#else
+            // 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 );
+#endif
+        }
         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)
@@ -1369,49 +1430,32 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
                     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))
         {
-            /* 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.ConvertToImage();
-            image = image.Scale( ww, hh );
-
-            /* convert to bitmap */
-            bitmap = wxBitmap(image);
-
-            /* 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
         {
-            /* 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(),
@@ -1421,7 +1465,8 @@ bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
     }
 
     SetLogicalFunction( old_logical_func );
-    return TRUE;
+
+    return true;
 }
 
 void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
@@ -1429,7 +1474,7 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
     wxCHECK_RET( Ok(), wxT("invalid window dc") );
 
     if (!m_window) return;
-    
+
     if (text.empty()) return;
 
 #ifndef __WXGTK20__
@@ -1446,30 +1491,46 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
     wxCHECK_RET( m_layout, wxT("no Pango layout") );
     wxCHECK_RET( m_fontdesc, wxT("no Pango font description") );
 
+    bool underlined = m_font.Ok() && m_font.GetUnderlined();
+
 #if wxUSE_UNICODE
     const wxCharBuffer data = wxConvUTF8.cWC2MB( text );
 #else
     const wxWCharBuffer wdata = wxConvLocal.cMB2WC( text );
+    if ( !wdata )
+        return;
     const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
 #endif
-    pango_layout_set_text( m_layout, (const char*) data, strlen( (const char*) data ));
+    size_t datalen = strlen((const char*)data);
+    pango_layout_set_text( m_layout, (const char*) data, datalen);
+
+    if (underlined)
+    {
+        PangoAttrList *attrs = pango_attr_list_new();
+        PangoAttribute *a = pango_attr_underline_new(PANGO_UNDERLINE_SINGLE);
+        a->start_index = 0;
+        a->end_index = datalen;
+        pango_attr_list_insert(attrs, a);
+        pango_layout_set_attributes(m_layout, attrs);
+        pango_attr_list_unref(attrs);
+    }
 
     int w,h;
-    
-    if (m_scaleY != 1.0)
+
+    if (fabs(m_scaleY - 1.0) > 0.00001)
     {
          // If there is a user or actually any scale applied to
          // the device context, scale the font.
-         
+
          // scale font description
          gint oldSize = pango_font_description_get_size( m_fontdesc );
          double size = oldSize;
          size = size * m_scaleY;
          pango_font_description_set_size( m_fontdesc, (gint)size );
-         
+
          // actually apply scaled font
          pango_layout_set_font_description( m_layout, m_fontdesc );
-        
+
          pango_layout_get_pixel_size( m_layout, &w, &h );
          if ( m_backgroundMode == wxSOLID )
          {
@@ -1477,13 +1538,13 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
             gdk_draw_rectangle(m_window, m_textGC, TRUE, x, y, w, h);
             gdk_gc_set_foreground(m_textGC, m_textForegroundColour.GetColor());
          }
-         
+
          // Draw layout.
          gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
-         
+
          // reset unscaled size
          pango_font_description_set_size( m_fontdesc, oldSize );
-         
+
          // actually apply unscaled font
          pango_layout_set_font_description( m_layout, m_fontdesc );
     }
@@ -1499,10 +1560,16 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
         // Draw layout.
         gdk_draw_layout( m_window, m_textGC, x, y, m_layout );
     }
-    
+
+    if (underlined)
+    {
+        // undo underline attributes setting:
+        pango_layout_set_attributes(m_layout, NULL);
+    }
+
     wxCoord width = w;
     wxCoord height = h;
-    
+
 #else // GTK+ 1.x
     wxCoord width = gdk_string_width( font, text.mbc_str() );
     wxCoord height = font->ascent + font->descent;
@@ -1532,9 +1599,14 @@ void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
     CalcBoundingBox (x, y);
 }
 
+
+// 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 wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
 {
-    if (angle == 0.0)
+    if ( wxIsNullDouble(angle) )
     {
         DrawText(text, x, y);
         return;
@@ -1544,26 +1616,31 @@ void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
 
     if (!m_window) return;
 
-#ifdef __WXGTK20__
+    wxCoord w;
+    wxCoord h;
+
+#ifdef  __WXGTK20__
     // implement later without GdkFont for GTK 2.0
-    return;
+    GetTextExtent(text, &w, &h, NULL,NULL, &m_font);
+
 #else
     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;
+#endif
     // 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.SetTextForeground( *wxWHITE );
     dc.DrawText(text, 0, 0);
     dc.SelectObject(wxNullBitmap);
 
@@ -1587,47 +1664,40 @@ 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);
 
-    // prepare to blit-with-rotate the bitmap to the DC
-    wxImage image = src.ConvertToImage();
-
-    GdkColor *colText = m_textForegroundColour.GetColor(),
-             *colBack = m_textBackgroundColour.GetColor();
-
-    bool textColSet = TRUE;
-
-    unsigned char *data = image.GetData();
 
-    // 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 );
+    wxImage image = src.ConvertToImage();
 
-                    textColSet = textPixel;
-                }
+    image.ConvertColourToAlpha( m_textForegroundColour.Red(),
+                                m_textForegroundColour.Green(),
+                                m_textForegroundColour.Blue() );
+    image = image.Rotate( rad, wxPoint(0,0) );
+
+    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();
+
+    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 );
+
+    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...)
@@ -1640,13 +1710,9 @@ void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
     }
 #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);
-#endif
 }
 
 void wxWindowDC::DoGetTextExtent(const wxString &string,
@@ -1654,61 +1720,90 @@ void wxWindowDC::DoGetTextExtent(const wxString &string,
                                  wxCoord *descent, wxCoord *externalLeading,
                                  wxFont *theFont) const
 {
-    if (string.IsEmpty())
+    if ( width )
+        *width = 0;
+    if ( height )
+        *height = 0;
+    if ( descent )
+        *descent = 0;
+    if ( externalLeading )
+        *externalLeading = 0;
+
+    if (string.empty())
     {
-        if (width) (*width) = 0;
-        if (height) (*height) = 0;
         return;
     }
-    
+
 #ifdef __WXGTK20__
     // Set new font description
     if (theFont)
         pango_layout_set_font_description( m_layout, theFont->GetNativeFontInfo()->description );
-        
+
     // Set layout's text
 #if wxUSE_UNICODE
     const wxCharBuffer data = wxConvUTF8.cWC2MB( string );
-    pango_layout_set_text( m_layout, (const char*) data, strlen( (const char*) data ));
+    const char *dataUTF8 = (const char *)data;
 #else
     const wxWCharBuffer wdata = wxConvLocal.cMB2WC( string );
+    if ( !wdata )
+        return;
+
     const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
-    pango_layout_set_text( m_layout, (const char*) data, strlen( (const char*) data ));
+    const char *dataUTF8 = (const char *)data;
 #endif
- 
-    int w,h;
-    pango_layout_get_pixel_size( m_layout, &w, &h );
-    
-    if (width) (*width) = (wxCoord) w; 
-    if (height) (*height) = (wxCoord) h;
+
+    if ( !dataUTF8 )
+    {
+        // hardly ideal, but what else can we do if conversion failed?
+        return;
+    }
+
+    pango_layout_set_text( m_layout, dataUTF8, strlen(dataUTF8) );
+
     if (descent)
     {
-        // Do something about metrics here. TODO.
-        (*descent) = 0;
+        int h;
+        pango_layout_get_pixel_size( m_layout, width, &h );
+        PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
+        int baseline = pango_layout_iter_get_baseline(iter);
+        pango_layout_iter_free(iter);
+        *descent = h - PANGO_PIXELS(baseline);
+
+        if (height)
+            *height = (wxCoord) h;
     }
-    if (externalLeading) (*externalLeading) = 0;  // ??
-    
+    else
+    {
+        pango_layout_get_pixel_size( m_layout, width, height );
+    }
+
     // Reset old font description
     if (theFont)
         pango_layout_set_font_description( m_layout, m_fontdesc );
-#else
+#else // GTK+ 1.x
     wxFont fontToUse = m_font;
-    if (theFont) fontToUse = *theFont;
-    
+    if (theFont)
+        fontToUse = *theFont;
+
     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;  // ??
-#endif
+    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);
+#endif // GTK+ 2/1
 }
 
 wxCoord wxWindowDC::GetCharWidth() const
 {
 #ifdef __WXGTK20__
     pango_layout_set_text( m_layout, "H", 1 );
-    int w,h;
-    pango_layout_get_pixel_size( m_layout, &w, &h );
+    int w;
+    pango_layout_get_pixel_size( m_layout, &w, NULL );
     return w;
 #else
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
@@ -1722,8 +1817,8 @@ wxCoord wxWindowDC::GetCharHeight() const
 {
 #ifdef __WXGTK20__
     pango_layout_set_text( m_layout, "H", 1 );
-    int w,h;
-    pango_layout_get_pixel_size( m_layout, &w, &h );
+    int h;
+    pango_layout_get_pixel_size( m_layout, NULL, &h );
     return h;
 #else
     GdkFont *font = m_font.GetInternalFont( m_scaleY );
@@ -1774,39 +1869,42 @@ void wxWindowDC::Clear()
 void wxWindowDC::SetFont( const wxFont &font )
 {
     m_font = font;
-    
+
 #ifdef __WXGTK20__
     if (m_font.Ok())
     {
         if (m_fontdesc)
             pango_font_description_free( m_fontdesc );
-        
+
         m_fontdesc = pango_font_description_copy( m_font.GetNativeFontInfo()->description );
-        
-   
+
+
         if (m_owner)
         {
             PangoContext *oldContext = m_context;
-            
+
             // We might want to use the X11 context for faster
-            // rendering on screen
+            // rendering on screen.
+            // MR: Lets not want to do this, as this introduces libpangox dependancy.
+#if 0
             if (m_font.GetNoAntiAliasing())
                 m_context = m_owner->GtkGetPangoX11Context();
             else
-                m_context = m_owner->GtkGetPangoDefaultContext();
-                
+#endif
+            m_context = m_owner->GtkGetPangoDefaultContext();
+
             // If we switch back/forth between different contexts
             // we also have to create a new layout. I think so,
-            // at least, and it doesn't hurt to do it. 
+            // at least, and it doesn't hurt to do it.
             if (oldContext != m_context)
             {
                 if (m_layout)
                     g_object_unref( G_OBJECT( m_layout ) );
-                
+
                 m_layout = pango_layout_new( m_context );
             }
         }
-        
+
         pango_layout_set_font_description( m_layout, m_fontdesc );
     }
 #endif
@@ -1909,7 +2007,6 @@ void wxWindowDC::SetPen( const wxPen &pen )
         }
     }
 
-#if (GTK_MINOR_VERSION > 0) || (GTK_MAJOR_VERSION > 1)
     if (req_dash && req_nb_dash)
     {
         wxGTKDash *real_req_dash = new wxGTKDash[req_nb_dash];
@@ -1926,7 +2023,6 @@ void wxWindowDC::SetPen( const wxPen &pen )
             gdk_gc_set_dashes( m_penGC, 0, (wxGTKDash*)req_dash, req_nb_dash );
         }
     }
-#endif // GTK+ > 1.0
 
     GdkCapStyle capStyle = GDK_CAP_ROUND;
     switch (m_pen.GetCap())
@@ -2001,7 +2097,7 @@ void wxWindowDC::SetBrush( const wxBrush &brush )
         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;
@@ -2046,7 +2142,7 @@ 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;
@@ -2070,7 +2166,6 @@ void wxWindowDC::SetLogicalFunction( int function )
     {
         case wxXOR:          mode = GDK_XOR;           break;
         case wxINVERT:       mode = GDK_INVERT;        break;
-#if (GTK_MINOR_VERSION > 0) || (GTK_MAJOR_VERSION > 1)
         case wxOR_REVERSE:   mode = GDK_OR_REVERSE;    break;
         case wxAND_REVERSE:  mode = GDK_AND_REVERSE;   break;
         case wxCLEAR:        mode = GDK_CLEAR;         break;
@@ -2087,7 +2182,6 @@ void wxWindowDC::SetLogicalFunction( int function )
 
         // unsupported by GTK
         case wxNOR:          mode = GDK_COPY;          break;
-#endif // GTK+ > 1.0
         default:
            wxFAIL_MSG( wxT("unsupported logical function") );
            mode = GDK_COPY;
@@ -2272,22 +2366,19 @@ void wxWindowDC::Destroy()
 
 void wxWindowDC::ComputeScaleAndOrigin()
 {
-    /* CMB: copy scale to see if it changes */
-    double origScaleX = m_scaleX;
-    double origScaleY = m_scaleY;
+    const wxRealPoint origScale(m_scaleX, 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()))
+    // 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 );
-  }
+        // 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
@@ -2298,9 +2389,13 @@ wxSize wxWindowDC::GetPPI() const
 
 int wxWindowDC::GetDepth() const
 {
+#ifdef __WXGTK20__
+    return gdk_drawable_get_depth(m_window);
+#else
     wxFAIL_MSG(wxT("not implemented"));
 
     return -1;
+#endif
 }
 
 
@@ -2310,6 +2405,25 @@ int wxWindowDC::GetDepth() const
 
 IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxClientDC)
 
+// 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);
+    }
+}
+
 wxPaintDC::wxPaintDC( wxWindow *win )
          : wxClientDC( win )
 {
@@ -2317,21 +2431,23 @@ wxPaintDC::wxPaintDC( wxWindow *win )
     if (!win->m_clipPaintRegion)
         return;
 
+    wxSize sz = win->GetSize();
     m_paintClippingRegion = win->GetUpdateRegion();
+    wxLimitRegionToSize(m_paintClippingRegion, sz);
+
     GdkRegion *region = m_paintClippingRegion.GetRegion();
     if ( region )
     {
-        m_paintClippingRegion = win->GetUpdateRegion();
-        GdkRegion *region = m_paintClippingRegion.GetRegion();
-        if ( region )
-        {
-            m_currentClippingRegion.Union( m_paintClippingRegion );
+        m_currentClippingRegion.Union( m_paintClippingRegion );
+        wxLimitRegionToSize(m_currentClippingRegion, sz);
 
-            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 );
-        }
+        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 );
     }
 #endif // USE_PAINT_REGION
 }
@@ -2381,7 +2497,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
 bool wxDCModule::OnInit()
 {
     wxInitGCPool();
-    return TRUE;
+    return true;
 }
 
 void wxDCModule::OnExit()