X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/02cecc4dc2c07b3e4b109edf44c4c87a2fed87d9..726cc8697cd44a41b43257f05ca8cdd42b71a711:/src/gtk/dcclient.cpp

diff --git a/src/gtk/dcclient.cpp b/src/gtk/dcclient.cpp
index f81a7f8bc9..798b1f413f 100644
--- a/src/gtk/dcclient.cpp
+++ b/src/gtk/dcclient.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        src/gtk/dcclient.cpp
-// Purpose:
+// Purpose:     wxWindowDCImpl implementation
 // Author:      Robert Roebling
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Robert Roebling, Chris Breeze
@@ -71,27 +71,42 @@ static GdkPixmap* GetHatch(int style)
     const int i = style - wxBRUSHSTYLE_FIRST_HATCH;
     if (hatches[i] == NULL)
     {
+        // This macro creates a bitmap from an XBM file included above. Notice
+        // the need for the cast because gdk_bitmap_create_from_data() doesn't
+        // accept unsigned data but the arrays in XBM need to be unsigned to
+        // avoid warnings (and even errors in C+0x mode) from g++.
+#define CREATE_FROM_XBM_DATA(name) \
+        gdk_bitmap_create_from_data \
+        ( \
+            NULL, \
+            reinterpret_cast<gchar *>(name ## _bits), \
+            name ## _width, \
+            name ## _height \
+        )
+
         switch (style)
         {
         case wxBRUSHSTYLE_BDIAGONAL_HATCH:
-            hatches[i] = gdk_bitmap_create_from_data(NULL, bdiag_bits, bdiag_width, bdiag_height);
+            hatches[i] = CREATE_FROM_XBM_DATA(bdiag);
             break;
         case wxBRUSHSTYLE_CROSSDIAG_HATCH:
-            hatches[i] = gdk_bitmap_create_from_data(NULL, cdiag_bits, cdiag_width, cdiag_height);
+            hatches[i] = CREATE_FROM_XBM_DATA(cdiag);
             break;
         case wxBRUSHSTYLE_CROSS_HATCH:
-            hatches[i] = gdk_bitmap_create_from_data(NULL, cross_bits, cross_width, cross_height);
+            hatches[i] = CREATE_FROM_XBM_DATA(cross);
             break;
         case wxBRUSHSTYLE_FDIAGONAL_HATCH:
-            hatches[i] = gdk_bitmap_create_from_data(NULL, fdiag_bits, fdiag_width, fdiag_height);
+            hatches[i] = CREATE_FROM_XBM_DATA(fdiag);
             break;
         case wxBRUSHSTYLE_HORIZONTAL_HATCH:
-            hatches[i] = gdk_bitmap_create_from_data(NULL, horiz_bits, horiz_width, horiz_height);
+            hatches[i] = CREATE_FROM_XBM_DATA(horiz);
             break;
         case wxBRUSHSTYLE_VERTICAL_HATCH:
-            hatches[i] = gdk_bitmap_create_from_data(NULL, verti_bits, verti_width, verti_height);
+            hatches[i] = CREATE_FROM_XBM_DATA(verti);
             break;
         }
+
+#undef CREATE_FROM_XBM_DATA
     }
     return hatches[i];
 }
@@ -216,7 +231,7 @@ static GdkGC* wxGetPoolGC( GdkWindow *window, wxPoolGCType type )
     // The realloc failed.  Fall through to error.
     wxFAIL_MSG( wxT("No GC available") );
 
-    return (GdkGC*) NULL;
+    return NULL;
 }
 
 static void wxFreePoolGC( GdkGC *gc )
@@ -242,16 +257,16 @@ IMPLEMENT_ABSTRACT_CLASS(wxWindowDCImpl, wxGTKDCImpl)
 wxWindowDCImpl::wxWindowDCImpl( wxDC *owner ) :
    wxGTKDCImpl( owner )
 {
-    m_gdkwindow = (GdkWindow*) NULL;
-    m_penGC = (GdkGC *) NULL;
-    m_brushGC = (GdkGC *) NULL;
-    m_textGC = (GdkGC *) NULL;
-    m_bgGC = (GdkGC *) NULL;
-    m_cmap = (GdkColormap *) NULL;
+    m_gdkwindow = NULL;
+    m_penGC = NULL;
+    m_brushGC = NULL;
+    m_textGC = NULL;
+    m_bgGC = NULL;
+    m_cmap = NULL;
     m_isScreenDC = false;
-    m_context = (PangoContext *)NULL;
-    m_layout = (PangoLayout *)NULL;
-    m_fontdesc = (PangoFontDescription *)NULL;
+    m_context = NULL;
+    m_layout = NULL;
+    m_fontdesc = NULL;
 }
 
 wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) :
@@ -259,34 +274,35 @@ wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) :
 {
     wxASSERT_MSG( window, wxT("DC needs a window") );
 
-    m_gdkwindow = (GdkWindow*) NULL;
-    m_penGC = (GdkGC *) NULL;
-    m_brushGC = (GdkGC *) NULL;
-    m_textGC = (GdkGC *) NULL;
-    m_bgGC = (GdkGC *) NULL;
-    m_cmap = (GdkColormap *) NULL;
+    m_gdkwindow = NULL;
+    m_penGC = NULL;
+    m_brushGC = NULL;
+    m_textGC = NULL;
+    m_bgGC = NULL;
+    m_cmap = NULL;
     m_isScreenDC = false;
     m_font = window->GetFont();
 
     GtkWidget *widget = window->m_wxwindow;
+    m_gdkwindow = window->GTKGetDrawingWindow();
 
     // 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
-    // use the parent window here then.
+    // code should still be able to create wxClientDCs for them
     if ( !widget )
     {
-        window = window->GetParent();
-        widget = window->m_wxwindow;
-    }
+        widget = window->m_widget;
+
+        wxCHECK_RET(widget, "DC needs a widget");
 
-    wxASSERT_MSG( widget, wxT("DC needs a widget") );
+        m_gdkwindow = widget->window;
+        if (!gtk_widget_get_has_window(widget))
+            SetDeviceLocalOrigin(widget->allocation.x, widget->allocation.y);
+    }
 
-    m_context = window->GtkGetPangoDefaultContext();
+    m_context = window->GTKGetPangoDefaultContext();
     m_layout = pango_layout_new( m_context );
     m_fontdesc = pango_font_description_copy( widget->style->font_desc );
 
-    m_gdkwindow = widget->window;
-
     // Window not realized ?
     if (!m_gdkwindow)
     {
@@ -296,7 +312,7 @@ wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) :
          return;
     }
 
-    m_cmap = gtk_widget_get_colormap( widget ? widget : window->m_widget );
+    m_cmap = gtk_widget_get_colormap(widget);
 
     SetUpDC();
 
@@ -309,7 +325,7 @@ wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *window ) :
 
     m_window = window;
 
-    if (m_window && m_window->m_wxwindow && 
+    if (m_window && m_window->m_wxwindow &&
         (m_window->GetLayoutDirection() == wxLayout_RightToLeft))
     {
         // reverse sense
@@ -351,7 +367,7 @@ void wxWindowDCImpl::SetUpDC( bool isMemDC )
     }
 
     if (!done)
-    {    
+    {
         if (m_isScreenDC)
         {
             m_penGC = wxGetPoolGC( m_gdkwindow, wxPEN_SCREEN );
@@ -410,25 +426,25 @@ void wxWindowDCImpl::SetUpDC( bool isMemDC )
     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 );
 }
 
 void wxWindowDCImpl::DoGetSize( int* width, int* height ) const
 {
-    wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") );
+    wxCHECK_RET( m_window, wxT("GetSize() doesn't work without window") );
 
     m_window->GetSize(width, height);
 }
 
 bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y,
-                             const wxColour& col, int style)
+                                 const wxColour& col, wxFloodFillStyle style)
 {
 #if wxUSE_IMAGE
     extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
-                              const wxColour & col, int style);
+                              const wxColour & col, wxFloodFillStyle style);
 
     return wxDoFloodFill( GetOwner(), x, y, col, style);
 #else
@@ -443,32 +459,40 @@ bool wxWindowDCImpl::DoFloodFill(wxCoord x, wxCoord y,
 
 bool wxWindowDCImpl::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
 {
-#if wxUSE_IMAGE
-    // Generic (and therefore rather inefficient) method.
-    // Could be improved.
-    wxMemoryDC memdc;
-    wxBitmap bitmap(1, 1);
-    memdc.SelectObject(bitmap);
-    memdc.Blit(0, 0, 1, 1, GetOwner(), x1, y1);
-    memdc.SelectObject(wxNullBitmap);
-
-    wxImage image = bitmap.ConvertToImage();
-    col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
+    GdkImage* image = NULL;
+    if (m_gdkwindow)
+    {
+        const int x = LogicalToDeviceX(x1);
+        const int y = LogicalToDeviceY(y1);
+        wxRect rect;
+        gdk_drawable_get_size(m_gdkwindow, &rect.width, &rect.height);
+        if (rect.Contains(x, y))
+            image = gdk_drawable_get_image(m_gdkwindow, x, y, 1, 1);
+    }
+    if (image == NULL)
+    {
+        *col = wxColour();
+        return false;
+    }
+    GdkColormap* colormap = gdk_image_get_colormap(image);
+    const unsigned pixel = gdk_image_get_pixel(image, 0, 0);
+    if (colormap == NULL)
+        *col = pixel ? m_textForegroundColour : m_textBackgroundColour;
+    else
+    {
+        GdkColor c;
+        gdk_colormap_query_color(colormap, pixel, &c);
+        col->Set(c.red >> 8, c.green >> 8, c.blue >> 8);
+    }
+    g_object_unref(image);
     return true;
-#else // !wxUSE_IMAGE
-    wxUnusedVar(x1);
-    wxUnusedVar(y1);
-    wxUnusedVar(col);
-
-    return false;
-#endif // wxUSE_IMAGE/!wxUSE_IMAGE
 }
 
 void wxWindowDCImpl::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
 {
     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
-    
-    if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+
+    if ( m_pen.IsNonTransparent() )
     {
         if (m_gdkwindow)
             gdk_draw_line( m_gdkwindow, m_penGC, XLOG2DEV(x1), YLOG2DEV(y1), XLOG2DEV(x2), YLOG2DEV(y2) );
@@ -482,7 +506,7 @@ void wxWindowDCImpl::DoCrossHair( wxCoord x, wxCoord y )
 {
     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 
-    if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+    if ( m_pen.IsNonTransparent() )
     {
         int w = 0;
         int h = 0;
@@ -580,7 +604,7 @@ void wxWindowDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
 
     if (m_gdkwindow)
     {
-        if (m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
+        if ( m_brush.IsNonTransparent() )
         {
             GdkGC* gc;
             bool originChanged;
@@ -592,11 +616,11 @@ void wxWindowDCImpl::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
                 gdk_gc_set_ts_origin(gc, 0, 0);
         }
 
-        if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+        if ( m_pen.IsNonTransparent() )
         {
             gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xxc-r, yyc-r, 2*r,2*r, alpha1, alpha2 );
 
-            if ((m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT) && (alpha2 - alpha1 != 360*64))
+            if ( m_brush.IsNonTransparent() && (alpha2 - alpha1 != 360*64) )
             {
                 gdk_draw_line( m_gdkwindow, m_penGC, xx1, yy1, xxc, yyc );
                 gdk_draw_line( m_gdkwindow, m_penGC, xxc, yyc, xx2, yy2 );
@@ -626,7 +650,7 @@ void wxWindowDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxC
         wxCoord start = wxCoord(sa * 64.0);
         wxCoord end = wxCoord((ea-sa) * 64.0);
 
-        if (m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
+        if ( m_brush.IsNonTransparent() )
         {
             GdkGC* gc;
             bool originChanged;
@@ -638,7 +662,7 @@ void wxWindowDCImpl::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxC
                 gdk_gc_set_ts_origin(gc, 0, 0);
         }
 
-        if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+        if ( m_pen.IsNonTransparent() )
             gdk_draw_arc( m_gdkwindow, m_penGC, FALSE, xx, yy, ww, hh, start, end );
     }
 
@@ -650,7 +674,7 @@ void wxWindowDCImpl::DoDrawPoint( wxCoord x, wxCoord y )
 {
     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 
-    if ((m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT) && m_gdkwindow)
+    if ( m_pen.IsNonTransparent() && m_gdkwindow )
         gdk_draw_point( m_gdkwindow, m_penGC, XLOG2DEV(x), YLOG2DEV(y) );
 
     CalcBoundingBox (x, y);
@@ -660,9 +684,11 @@ void wxWindowDCImpl::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCo
 {
     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 
-    if (m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT) return;
     if (n <= 0) return;
 
+    if ( m_pen.IsTransparent() )
+        return;
+
     //Check, if scaling is necessary
     const bool doScale =
         xoffset != 0 || yoffset != 0 || XLOG2DEV(10) != 10 || YLOG2DEV(10) != 10;
@@ -690,7 +716,9 @@ void wxWindowDCImpl::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCo
         delete[] gpts;
 }
 
-void wxWindowDCImpl::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( IsOk(), wxT("invalid window dc") );
 
@@ -719,7 +747,7 @@ void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wx
 
     if (m_gdkwindow)
     {
-        if (m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
+        if ( m_brush.IsNonTransparent() )
         {
             GdkGC* gc;
             bool originChanged;
@@ -731,7 +759,7 @@ void wxWindowDCImpl::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wx
                 gdk_gc_set_ts_origin(gc, 0, 0);
         }
 
-        if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+        if ( m_pen.IsNonTransparent() )
         {
 /*
             for (i = 0 ; i < n ; i++)
@@ -770,7 +798,7 @@ void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoo
 
     if (m_gdkwindow)
     {
-        if (m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
+        if ( m_brush.IsNonTransparent() )
         {
             GdkGC* gc;
             bool originChanged;
@@ -782,9 +810,8 @@ void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoo
                 gdk_gc_set_ts_origin(gc, 0, 0);
         }
 
-        if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+        if ( m_pen.IsNonTransparent() )
         {
-#if 1
             if ((m_pen.GetWidth() == 2) && (m_pen.GetCap() == wxCAP_ROUND) &&
                 (m_pen.GetJoin() == wxJOIN_ROUND) && (m_pen.GetStyle() == wxPENSTYLE_SOLID))
             {
@@ -807,7 +834,6 @@ void wxWindowDCImpl::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoo
                 gdk_gc_set_line_attributes( m_penGC, 2, GDK_LINE_SOLID, GDK_CAP_ROUND, GDK_JOIN_ROUND );
             }
             else
-#endif
             {
                 // Just use X11 for other cases
                 gdk_draw_rectangle( m_gdkwindow, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
@@ -848,7 +874,7 @@ void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width
 
     // CMB: adjust size if outline is drawn otherwise the result is
     // 1 pixel too wide and high
-    if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+    if ( m_pen.IsNonTransparent() )
     {
         ww--;
         hh--;
@@ -863,7 +889,7 @@ void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width
         if (dd > hh) dd = hh;
         rr = dd / 2;
 
-        if (m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
+        if ( m_brush.IsNonTransparent() )
         {
             GdkGC* gc;
             bool originChanged;
@@ -880,7 +906,7 @@ void wxWindowDCImpl::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width
                 gdk_gc_set_ts_origin(gc, 0, 0);
         }
 
-        if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+        if ( m_pen.IsNonTransparent() )
         {
             gdk_draw_line( m_gdkwindow, m_penGC, xx+rr+1, yy, xx+ww-rr, yy );
             gdk_draw_line( m_gdkwindow, m_penGC, xx+rr+1, yy+hh, xx+ww-rr, yy+hh );
@@ -913,7 +939,7 @@ void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord
 
     if (m_gdkwindow)
     {
-        if (m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT)
+        if ( m_brush.IsNonTransparent() )
         {
             GdkGC* gc;
             bool originChanged;
@@ -921,7 +947,7 @@ void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord
 
             // If the pen is transparent pen we increase the size
             // for better compatibility with other platforms.
-            if (m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT)
+            if ( m_pen.IsNonTransparent() )
             {
                 ++ww;
                 ++hh;
@@ -933,7 +959,7 @@ void wxWindowDCImpl::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord
                 gdk_gc_set_ts_origin(gc, 0, 0);
         }
 
-        if (m_pen.GetStyle() != wxPENSTYLE_TRANSPARENT)
+        if ( m_pen.IsNonTransparent() )
             gdk_draw_arc( m_gdkwindow, m_penGC, false, xx, yy, ww, hh, 0, 360*64 );
     }
 
@@ -999,7 +1025,7 @@ ScaleMask(GdkPixmap* mask, int x, int y, int w, int h, int dst_w, int dst_h, dou
 // Make a new mask from part of a mask and a clip region.
 // Return new mask, unref old one.
 static GdkPixmap*
-ClipMask(GdkPixmap* mask, const GdkRegion* clipRegion, int x, int y, int dst_x, int dst_y, int w, int h)
+ClipMask(GdkPixmap* mask, GdkRegion* clipRegion, int x, int y, int dst_x, int dst_y, int w, int h)
 {
     GdkGCValues gcValues;
     gcValues.foreground.pixel = 0;
@@ -1048,8 +1074,11 @@ void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap,
     const int w = bitmap.GetWidth();
     const int h = bitmap.GetHeight();
 
+    // notice that as the bitmap is not drawn upside down (or right to left)
+    // even if the corresponding axis direction is inversed, we need to take it
+    // into account when calculating its bounding box
     CalcBoundingBox(x, y);
-    CalcBoundingBox(x + w, y + h);
+    CalcBoundingBox(x + m_signX*w, y + m_signY*h);
 
     // device coords
     int xx = LogicalToDeviceX(x);
@@ -1060,7 +1089,7 @@ void wxWindowDCImpl::DoDrawBitmap( const wxBitmap &bitmap,
     if (m_window && m_window->GetLayoutDirection() == wxLayout_RightToLeft)
         xx -= ww;
 
-    const GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+    GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
     // determine clip region overlap
     int overlap = wxInRegion;
     if (clipRegion)
@@ -1150,7 +1179,7 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
                          wxCoord width, wxCoord height,
                          wxDC *source,
                          wxCoord xsrc, wxCoord ysrc,
-                         int logical_func,
+                         wxRasterOperationMode logical_func,
                          bool useMask,
                          wxCoord xsrcMask, wxCoord ysrcMask )
 {
@@ -1225,7 +1254,7 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
     const int dst_w = LogicalToDeviceXRel(width);
     const int dst_h = LogicalToDeviceYRel(height);
 
-    const GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
+    GdkRegion* const clipRegion = m_currentClippingRegion.GetRegion();
     // determine dest clip region overlap
     int overlap = wxInRegion;
     if (clipRegion)
@@ -1291,7 +1320,7 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
         src_y = 0;
     }
 
-    const int logical_func_save = m_logicalFunction;
+    const wxRasterOperationMode logical_func_save = m_logicalFunction;
     SetLogicalFunction(logical_func);
     if (memDC == NULL)
         gdk_gc_set_subwindow(use_gc, GDK_INCLUDE_INFERIORS);
@@ -1324,7 +1353,9 @@ bool wxWindowDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
     return true;
 }
 
-void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
+void wxWindowDCImpl::DoDrawText(const wxString& text,
+                                wxCoord xLogical,
+                                wxCoord yLogical)
 {
     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 
@@ -1332,8 +1363,8 @@ void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
 
     if (text.empty()) return;
 
-    x = XLOG2DEV(x);
-    y = YLOG2DEV(y);
+    wxCoord x = XLOG2DEV(xLogical),
+            y = YLOG2DEV(yLogical);
 
     wxCHECK_RET( m_context, wxT("no Pango context") );
     wxCHECK_RET( m_layout, wxT("no Pango layout") );
@@ -1429,9 +1460,9 @@ void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
         x_rtl -= w;
 
     const GdkColor* bg_col = NULL;
-    if (m_backgroundMode == wxBRUSHSTYLE_SOLID) 
+    if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
         bg_col = m_textBackgroundColour.GetColor();
- 
+
     gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x_rtl, y, m_layout, NULL, bg_col);
 
     if (isScaled)
@@ -1448,11 +1479,11 @@ void wxWindowDCImpl::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
         pango_layout_set_attributes(m_layout, NULL);
     }
 
-    CalcBoundingBox(x + int(w / m_scaleX), y + int(h / m_scaleY));
-    CalcBoundingBox(x, y);
+    CalcBoundingBox(xLogical + int(w / m_scaleX), yLogical + int(h / m_scaleY));
+    CalcBoundingBox(xLogical, yLogical);
 }
 
-// TODO: When GTK2.6 is required, merge DoDrawText and DoDrawRotatedText to 
+// TODO: When GTK2.6 is required, merge DoDrawText and DoDrawRotatedText to
 // avoid code duplication
 void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
 {
@@ -1498,7 +1529,7 @@ void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord
         pango_layout_get_pixel_size(m_layout, &w, &h);
 
         const GdkColor* bg_col = NULL;
-        if (m_backgroundMode == wxBRUSHSTYLE_SOLID) 
+        if (m_backgroundMode == wxBRUSHSTYLE_SOLID)
             bg_col = m_textBackgroundColour.GetColor();
 
         // rotate the text
@@ -1507,13 +1538,13 @@ void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord
         pango_context_set_matrix (m_context, &matrix);
         pango_layout_context_changed (m_layout);
 
-        // To be compatible with MSW, the rotation axis must be in the old 
+        // To be compatible with MSW, the rotation axis must be in the old
         // top-left corner.
-        // Calculate the vertices of the rotated rectangle containing the text, 
+        // Calculate the vertices of the rotated rectangle containing the text,
         // relative to the old top-left vertex.
-        // We could use the matrix for this, but it's simpler with trignonometry. 
+        // We could use the matrix for this, but it's simpler with trignonometry.
         double rad = DegToRad(angle);
-        // the rectangle vertices are counted clockwise with the first one 
+        // the rectangle vertices are counted clockwise with the first one
         // being at (0, 0)
         double x2 = w * cos(rad);
         double y2 = -w * sin(rad);   // y axis points to the bottom, hence minus
@@ -1527,7 +1558,7 @@ void wxWindowDCImpl::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord
                 minX = (wxCoord)(dmin(dmin(0, x2), dmin(x3, x4)) - 0.5),
                 minY = (wxCoord)(dmin(dmin(0, y2), dmin(y3, y4)) - 0.5);
 
-        gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x+minX, y+minY, 
+        gdk_draw_layout_with_colors(m_gdkwindow, m_textGC, x+minX, y+minY,
                                     m_layout, NULL, bg_col);
 
         if (m_font.GetUnderlined())
@@ -1767,10 +1798,10 @@ wxCoord wxWindowDCImpl::GetCharWidth() const
 wxCoord wxWindowDCImpl::GetCharHeight() const
 {
     PangoFontMetrics *metrics = pango_context_get_metrics (m_context, m_fontdesc, pango_context_get_language(m_context));
-    wxCHECK_MSG( metrics, -1, _T("failed to get pango font metrics") );
+    wxCHECK_MSG( metrics, -1, wxT("failed to get pango font metrics") );
 
     wxCoord h = PANGO_PIXELS (pango_font_metrics_get_descent (metrics) +
-                pango_font_metrics_get_ascent (metrics));
+                              pango_font_metrics_get_ascent (metrics));
     pango_font_metrics_unref (metrics);
     return h;
 }
@@ -1802,7 +1833,7 @@ void wxWindowDCImpl::SetFont( const wxFont &font )
         {
             PangoContext *oldContext = m_context;
 
-            m_context = m_window->GtkGetPangoDefaultContext();
+            m_context = m_window->GTKGetPangoDefaultContext();
 
             // If we switch back/forth between different contexts
             // we also have to create a new layout. I think so,
@@ -1894,7 +1925,7 @@ void wxWindowDCImpl::SetPen( const wxPen &pen )
         case wxPENSTYLE_SOLID:
         default:
             lineStyle = GDK_LINE_SOLID;
-            req_dash = (wxGTKDash*)NULL;
+            req_dash = NULL;
             req_nb_dash = 0;
             break;
     }
@@ -2040,7 +2071,7 @@ void wxWindowDCImpl::SetBackground( const wxBrush &brush )
     }
 }
 
-void wxWindowDCImpl::SetLogicalFunction( int function )
+void wxWindowDCImpl::SetLogicalFunction( wxRasterOperationMode function )
 {
     wxCHECK_RET( IsOk(), wxT("invalid window dc") );
 
@@ -2071,8 +2102,8 @@ void wxWindowDCImpl::SetLogicalFunction( int function )
         case wxSRC_INVERT:   mode = GDK_COPY_INVERT;   break;
         case wxNOR:          mode = GDK_NOR;           break;
         default:
-           wxFAIL_MSG( wxT("unsupported logical function") );
-           mode = GDK_COPY;
+            wxFAIL_MSG("unknown mode");
+            return;
     }
 
     m_logicalFunction = function;
@@ -2146,7 +2177,7 @@ void wxWindowDCImpl::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, w
     rect.width = XLOG2DEVREL(width);
     rect.height = YLOG2DEVREL(height);
 
-    if (m_window && m_window->m_wxwindow && 
+    if (m_window && m_window->m_wxwindow &&
         (m_window->GetLayoutDirection() == wxLayout_RightToLeft))
     {
         rect.x -= rect.width;
@@ -2216,13 +2247,13 @@ void wxWindowDCImpl::DestroyClippingRegion()
 void wxWindowDCImpl::Destroy()
 {
     if (m_penGC) wxFreePoolGC( m_penGC );
-    m_penGC = (GdkGC*) NULL;
+    m_penGC = NULL;
     if (m_brushGC) wxFreePoolGC( m_brushGC );
-    m_brushGC = (GdkGC*) NULL;
+    m_brushGC = NULL;
     if (m_textGC) wxFreePoolGC( m_textGC );
-    m_textGC = (GdkGC*) NULL;
+    m_textGC = NULL;
     if (m_bgGC) wxFreePoolGC( m_bgGC );
-    m_bgGC = (GdkGC*) NULL;
+    m_bgGC = NULL;
 }
 
 void wxWindowDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )
@@ -2238,7 +2269,7 @@ void wxWindowDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
     m_signX = (xLeftRight ?  1 : -1);
     m_signY = (yBottomUp  ? -1 :  1);
 
-    if (m_window && m_window->m_wxwindow && 
+    if (m_window && m_window->m_wxwindow &&
         (m_window->GetLayoutDirection() == wxLayout_RightToLeft))
         m_signX = -m_signX;
 
@@ -2288,20 +2319,20 @@ wxClientDCImpl::wxClientDCImpl( wxDC *owner )
 wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win )
           : wxWindowDCImpl( owner, win )
 {
-    wxCHECK_RET( win, _T("NULL window in wxClientDCImpl::wxClientDC") );
+    wxCHECK_RET( win, wxT("NULL window in wxClientDCImpl::wxClientDC") );
 
 #ifdef __WXUNIVERSAL__
     wxPoint ptOrigin = win->GetClientAreaOrigin();
     SetDeviceOrigin(ptOrigin.x, ptOrigin.y);
     wxSize size = win->GetClientSize();
     DoSetClippingRegion(0, 0, size.x, size.y);
-#endif 
+#endif
     // __WXUNIVERSAL__
 }
 
 void wxClientDCImpl::DoGetSize(int *width, int *height) const
 {
-    wxCHECK_RET( m_window, _T("GetSize() doesn't work without window") );
+    wxCHECK_RET( m_window, wxT("GetSize() doesn't work without window") );
 
     m_window->GetClientSize( width, height );
 }
@@ -2361,7 +2392,7 @@ wxPaintDCImpl::wxPaintDCImpl( wxDC *owner, wxWindow *win )
         gdk_gc_set_clip_region( m_textGC, region );
         gdk_gc_set_clip_region( m_bgGC, region );
     }
-#endif 
+#endif
 }
 
 // ----------------------------------------------------------------------------