X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dfc5454127ac2195e10deebb216d82c674e757df..7e0fff428ff6012aac752588511ca6d539d94c92:/src/motif/dcclient.cpp

diff --git a/src/motif/dcclient.cpp b/src/motif/dcclient.cpp
index cf9f83f7cd..285e7622d7 100644
--- a/src/motif/dcclient.cpp
+++ b/src/motif/dcclient.cpp
@@ -1,45 +1,142 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        dcclient.cpp
+// Name:        src/motif/dcclient.cpp
 // Purpose:     wxClientDC class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
-// Licence:   	wxWindows licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
-#pragma implementation "dcclient.h"
-#endif
+/*
+  About pens, brushes, and the m_autoSetting flag:
+
+  Under X, pens and brushes control some of the same X drawing
+  parameters.  Therefore, it is impossible to independently maintain
+  the current pen and the current brush. Also, some settings depend on
+  the current logical function. The m_currentFill, etc. instance
+  variables remember state across the brush and pen.
+
+  Since pens are used more than brushes, the m_autoSetting flag is used to
+  indicate that a brush was recently used, and SetPen must be called to
+  reinstall the current pen's parameters. If m_autoSetting includes 0x2, then the
+  pens color may need to be set based on XOR.
+
+  There is, unfortunately, some confusion between setting the current pen/brush
+  and actually installing the brush/pen parameters. Both functionalies are
+  perform by SetPen and SetBrush. C'est la vie.
+*/
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
 
 #include "wx/dcclient.h"
-#include "wx/dcmemory.h"
-#include "wx/window.h"
-#include <math.h>
 
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/window.h"
+    #include "wx/dcmemory.h"
+    #include "wx/math.h"
+    #include "wx/image.h"
+#endif
+
+#ifdef __VMS__
+#pragma message disable nosimpint
+#endif
 #include <Xm/Xm.h>
+#ifdef __VMS__
+#pragma message enable nosimpint
+#endif
 
 #include "wx/motif/private.h"
 
-//-----------------------------------------------------------------------------
+#ifdef __EMX__
+    #include <float.h>          // for M_PI
+#endif // __EMX__
+
+#include "bdiag.xbm"
+#include "fdiag.xbm"
+#include "cdiag.xbm"
+#include "horiz.xbm"
+#include "verti.xbm"
+#include "cross.xbm"
+
+static Pixmap bdiag, cdiag, fdiag, cross, horiz, verti;
+
+// ----------------------------------------------------------------------------
 // constants
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
 
-#define RAD2DEG 57.2957795131
+// Fudge factor (VZ: what??)
+#define WX_GC_CF 1
 
-//-----------------------------------------------------------------------------
-// wxWindowDC
-//-----------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
 
-#if !USE_SHARED_LIBRARY
-//IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxDC)
-//IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
+IMPLEMENT_DYNAMIC_CLASS(wxClientDC, wxWindowDC)
+IMPLEMENT_DYNAMIC_CLASS(wxPaintDC, wxWindowDC)
 IMPLEMENT_DYNAMIC_CLASS(wxWindowDC, wxDC)
+
+#ifndef IS_HATCH
+    // IS_HATCH exists for WXWIN_COMPATIBILITY_2_4 only
+    // but wxMotif needs it for its internals here
+    #define IS_HATCH(s)    ((s)>=wxFIRST_HATCH && (s)<=wxLAST_HATCH)
 #endif
 
+// FIXME: left over after removal of wxDC::GetOptimization()
+#define GET_OPTIMIZATION false
+
+// ----------------------------------------------------------------------------
+// prototypes
+// ----------------------------------------------------------------------------
+
+static void XCopyRemote(Display *src_display, Display *dest_display,
+                        Drawable src, Drawable dest,
+                        GC destgc,
+                        int srcx, int srcy,
+                        unsigned int w, unsigned int h,
+                        int destx, int desty,
+                        bool more, XImage **cache);
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+/*
+ * compare two doubles and return the larger rounded
+ * to the nearest int
+ */
+static int roundmax(double a, double b)
+{
+    return (int)((a > b ? a : b) + 0.5);
+}
 
-wxWindowDC::wxWindowDC(void)
+/*
+ * compare two doubles and return the smaller rounded
+ * to the nearest int
+ */
+static int roundmin(double a, double b)
+{
+    return (int)((a < b ? a : b) - 0.5);
+}
+
+
+// ----------------------------------------------------------------------------
+// wxWindowDC
+// ----------------------------------------------------------------------------
+
+void wxWindowDC::Init()
 {
     m_gc = (WXGC) 0;
     m_gcBacking = (WXGC) 0;
@@ -48,36 +145,62 @@ wxWindowDC::wxWindowDC(void)
     m_currentPenWidth = 1;
     m_currentPenJoin = -1;
     m_currentPenDashCount = -1;
-    m_currentPenDash = (char*) NULL;
+    m_currentPenDash = (wxX11Dash*) NULL;
     m_currentStyle = -1;
     m_currentFill = -1;
-    m_currentBkMode = wxTRANSPARENT;
     m_colour = wxColourDisplay();
     m_display = (WXDisplay*) NULL;
-    m_clippingRegion = (WXRegion) 0;
-};
+    m_pixmap = (WXPixmap) 0;
+    m_autoSetting = 0;
+    m_ok = false;
+    m_clipRegion = (WXRegion) 0;
+}
+
+wxWindowDC::wxWindowDC()
+{
+    Init();
+}
 
 wxWindowDC::wxWindowDC( wxWindow *window )
 {
+    wxASSERT_MSG( (window != (wxWindow*) NULL), "You must pass a valid wxWindow to wxWindowDC/wxClientDC/wxPaintDC constructor." );
+
+    Init();
+
     m_window = window;
-    m_gc = (WXGC) 0;
-    m_gcBacking = (WXGC) 0;
-    m_window = NULL;
-    m_backgroundPixel = -1;
-    m_currentPenWidth = 1;
-    m_currentPenJoin = -1;
-    m_currentPenDashCount = -1;
-    m_currentPenDash = (char*) NULL;
-    m_currentStyle = -1;
-    m_currentFill = -1;
-    m_currentBkMode = wxTRANSPARENT;
-    m_colour = wxColourDisplay();
+    m_font = window->GetFont();
+    m_ok = true;
+
     m_display = window->GetXDisplay();
-    m_clippingRegion = (WXRegion) 0;
-    m_ok = TRUE;
-};
+    m_pixmap = window->GetXWindow();
+    Display* display = (Display*) m_display;
+
+    XSetWindowColormap (display, (Pixmap) m_pixmap, (Colormap) wxTheApp->GetMainColormap(m_display));
+
+    XGCValues gcvalues;
+    gcvalues.foreground = BlackPixel (display, DefaultScreen (display));
+    gcvalues.background = WhitePixel (display, DefaultScreen (display));
+    gcvalues.graphics_exposures = False;
+    gcvalues.subwindow_mode = IncludeInferiors;
+    gcvalues.line_width = 1;
+    m_gc = (WXGC) XCreateGC (display, RootWindow (display, DefaultScreen (display)),
+        GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
+        &gcvalues);
+
+    if (m_window->GetBackingPixmap())
+    {
+        m_gcBacking = (WXGC) XCreateGC (display, RootWindow (display,
+            DefaultScreen (display)),
+            GCForeground | GCBackground | GCGraphicsExposures | GCLineWidth | GCSubwindowMode,
+            &gcvalues);
+    }
+
+    m_backgroundPixel = gcvalues.background;
+
+    SetBackground(wxBrush(m_window->GetBackgroundColour(), wxSOLID));
+}
 
-wxWindowDC::~wxWindowDC(void)
+wxWindowDC::~wxWindowDC()
 {
     if (m_gc)
         XFreeGC ((Display*) m_display, (GC) m_gc);
@@ -87,602 +210,2039 @@ wxWindowDC::~wxWindowDC(void)
         XFreeGC ((Display*) m_display, (GC) m_gcBacking);
     m_gcBacking = (WXGC) 0;
 
-    if (m_clippingRegion)
-        XDestroyRegion ((Region) m_clippingRegion);
-    m_clippingRegion = (WXRegion) 0;
-};
+    if (m_clipRegion)
+        XDestroyRegion ((Region) m_clipRegion);
+    m_clipRegion = (WXRegion) 0;
+}
+
+extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
+                          const wxColour & col, int style);
 
-void wxWindowDC::FloodFill( long WXUNUSED(x1), long WXUNUSED(y1), 
-  wxColour* WXUNUSED(col), int WXUNUSED(style) )
+bool wxWindowDC::DoFloodFill(wxCoord x, wxCoord y,
+                             const wxColour& col, int style)
 {
-};
+    return wxDoFloodFill(this, x, y, col, style);
+}
 
-bool wxWindowDC::GetPixel( long WXUNUSED(x1), long WXUNUSED(y1), wxColour *WXUNUSED(col) ) const
+bool wxWindowDC::DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const
 {
-  return FALSE;
-};
+    // 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.SelectObject(wxNullBitmap);
+    wxImage image = bitmap.ConvertToImage();
+    col->Set(image.GetRed(0, 0), image.GetGreen(0, 0), image.GetBlue(0, 0));
+    return true;
+}
 
-void wxWindowDC::DrawLine( long x1, long y1, long x2, long y2 )
+void wxWindowDC::DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 )
 {
-  if (!Ok()) return;
-#if 0  
-  int x1d, y1d, x2d, y2d;
+    wxCHECK_RET( Ok(), "invalid dc" );
 
-  /* MATTHEW: [7] Implement GetPixel */
-  FreeGetPixelCache();
+    int x1d, y1d, x2d, y2d;
 
-  x1d = XLOG2DEV(x1);
-  y1d = YLOG2DEV(y1);
-  x2d = XLOG2DEV(x2);
-  y2d = YLOG2DEV(y2);
+    x1d = XLOG2DEV(x1);
+    y1d = YLOG2DEV(y1);
+    x2d = XLOG2DEV(x2);
+    y2d = YLOG2DEV(y2);
 
-  if (current_pen && autoSetting)
-    SetPen (current_pen);
-  XDrawLine (display, pixmap, gc, x1d, y1d, x2d, y2d);
+    if (m_autoSetting)
+        SetPen (m_pen);
 
-  if (canvas && canvas->is_retained)
-    XDrawLine (display, canvas->backingPixmap, gcBacking, 
-	       XLOG2DEV_2(x1), YLOG2DEV_2(y1),
-	       XLOG2DEV_2(x2), YLOG2DEV_2(y2));
+    XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, x1d, y1d, x2d, y2d);
 
-  CalcBoundingBox(x1, y1);
-  CalcBoundingBox(x2, y2);
-#endif
-};
-
-void wxWindowDC::CrossHair( long x, long y )
-{
-  if (!Ok()) return;
-  
-};
-
-void wxWindowDC::DrawArc( long x1, long y1, long x2, long y2, long xc, long yc )
-{
-  if (!Ok()) return;
-  
-  long xx1 = XLOG2DEV(x1); 
-  long yy1 = YLOG2DEV(y1);
-  long xx2 = XLOG2DEV(x2); 
-  long yy2 = YLOG2DEV(y2);
-  long xxc = XLOG2DEV((long)xc); 
-  long yyc = YLOG2DEV((long)yc);
-  double dx = xx1 - xxc; 
-  double dy = yy1 - yyc;
-  double radius = sqrt(dx*dx+dy*dy);
-  long   r      = (long)radius;
-  double radius1, radius2;
-
-  if (xx1 == xx2 && yy1 == yy2) 
-  {
-    radius1 = 0.0;
-    radius2 = 360.0;
-  } 
-  else 
-  if (radius == 0.0) 
-  {
-    radius1 = radius2 = 0.0;
-  } 
-  else 
-  {
-    radius1 = (xx1 - xxc == 0) ?
-	    (yy1 - yyc < 0) ? 90.0 : -90.0 :
-	    -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG;
-    radius2 = (xx2 - xxc == 0) ?
-	    (yy2 - yyc < 0) ? 90.0 : -90.0 :
-	    -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG;
-  };
-  long alpha1 = long(radius1 * 64.0);
-  long alpha2 = long((radius2 - radius1) * 64.0);
-  while (alpha2 <= 0) alpha2 += 360*64;
-  while (alpha1 > 360*64) alpha1 -= 360*64;
-
-  if (m_brush.GetStyle() != wxTRANSPARENT) {};
-    
-  if (m_pen.GetStyle() != wxTRANSPARENT) {};
-  
-};
-
-void wxWindowDC::DrawEllipticArc( long x, long y, long width, long height, double sa, double ea )
-{
-  if (!Ok()) return;
-  
-  long xx = XLOG2DEV(x);    
-  long yy = YLOG2DEV(y);
-  long ww = m_signX * XLOG2DEVREL(width); 
-  long hh = m_signY * YLOG2DEVREL(height);
-  
-  // CMB: handle -ve width and/or height
-  if (ww < 0) { ww = -ww; xx = xx - ww; }
-  if (hh < 0) { hh = -hh; yy = yy - hh; }
-  
-  long start = long(sa * 64.0);
-  long end = long(ea * 64.0);
-  if (m_brush.GetStyle() != wxTRANSPARENT) {};
-  
-  if (m_pen.GetStyle() != wxTRANSPARENT) {};
-};
-
-void wxWindowDC::DrawPoint( long x, long y )
-{
-  if (!Ok()) return;
-  
-  if (m_pen.GetStyle() != wxTRANSPARENT) {};
-};
-
-void wxWindowDC::DrawLines( int n, wxPoint points[], long xoffset, long yoffset )
-{
-  if (!Ok()) return;
-  
-  if (m_pen.GetStyle() == wxTRANSPARENT) return;
-  
-  for (int i = 0; i < n-1; i++)
-  {
-    long x1 = XLOG2DEV(points[i].x + xoffset);
-    long x2 = XLOG2DEV(points[i+1].x + xoffset);
-    long y1 = YLOG2DEV(points[i].y + yoffset);     // oh, what a waste
-    long y2 = YLOG2DEV(points[i+1].y + yoffset);
-  };
-};
-
-void wxWindowDC::DrawLines( wxList *points, long xoffset, long yoffset )
-{
-  if (!Ok()) return;
-  
-  if (m_pen.GetStyle() == wxTRANSPARENT) return;
-  
-  wxNode *node = points->First();
-  while (node->Next())
-  {
-    wxPoint *point = (wxPoint*)node->Data();
-    wxPoint *npoint = (wxPoint*)node->Next()->Data();
-    long x1 = XLOG2DEV(point->x + xoffset);
-    long x2 = XLOG2DEV(npoint->x + xoffset);
-    long y1 = YLOG2DEV(point->y + yoffset);    // and again...
-    long y2 = YLOG2DEV(npoint->y + yoffset);
-    node = node->Next();
-  };
-};
-
-void wxWindowDC::DrawPolygon( int WXUNUSED(n), wxPoint WXUNUSED(points)[], 
-  long WXUNUSED(xoffset), long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
-{
-  if (!Ok()) return;
-};
-
-void wxWindowDC::DrawPolygon( wxList *WXUNUSED(lines), long WXUNUSED(xoffset), 
-                             long WXUNUSED(yoffset), int WXUNUSED(fillStyle) )
-{
-  if (!Ok()) return;
-};
-
-void wxWindowDC::DrawRectangle( long x, long y, long width, long height )
-{
-  if (!Ok()) return;
-
-  long xx = XLOG2DEV(x);
-  long yy = YLOG2DEV(y);
-  long ww = m_signX * XLOG2DEVREL(width);
-  long hh = m_signY * YLOG2DEVREL(height);
-    
-  // CMB: draw nothing if transformed w or h is 0
-  if (ww == 0 || hh == 0) return;
-
-  // CMB: handle -ve width and/or height
-  if (ww < 0) { ww = -ww; xx = xx - ww; }
-  if (hh < 0) { hh = -hh; yy = yy - hh; }
-
-  if (m_brush.GetStyle() != wxTRANSPARENT) {};
-    
-  if (m_pen.GetStyle() != wxTRANSPARENT) {};
-};
-
-void wxWindowDC::DrawRoundedRectangle( long x, long y, long width, long height, double radius )
-{
-  if (!Ok()) return;
-  
-  if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
-  
-  long xx = XLOG2DEV(x);    
-  long yy = YLOG2DEV(y);
-  long ww = m_signX * XLOG2DEVREL(width); 
-  long hh = m_signY * YLOG2DEVREL(height);
-  long rr = XLOG2DEVREL((long)radius);
-
-  // CMB: handle -ve width and/or height
-  if (ww < 0) { ww = -ww; xx = xx - ww; }
-  if (hh < 0) { hh = -hh; yy = yy - hh; }
-
-  // CMB: if radius is zero use DrawRectangle() instead to avoid
-  // X drawing errors with small radii
-  if (rr == 0)
-  {
-    DrawRectangle( x, y, width, height );
-    return;
-  }
+    if (m_window && m_window->GetBackingPixmap())
+        XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+        XLOG2DEV_2(x1), YLOG2DEV_2(y1),
+        XLOG2DEV_2(x2), YLOG2DEV_2(y2));
 
-  // CMB: draw nothing if transformed w or h is 0
-  if (ww == 0 || hh == 0) return;
+    CalcBoundingBox(x1, y1);
+    CalcBoundingBox(x2, y2);
+}
 
-  // CMB: adjust size if outline is drawn otherwise the result is
-  // 1 pixel too wide and high
-  if (m_pen.GetStyle() != wxTRANSPARENT)
-  {
-    ww--;
-    hh--;
-  }
+void wxWindowDC::DoCrossHair( wxCoord x, wxCoord y )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
 
-  // CMB: ensure dd is not larger than rectangle otherwise we
-  // get an hour glass shape
-  long dd = 2 * rr;
-  if (dd > ww) dd = ww;
-  if (dd > hh) dd = hh;
-  rr = dd / 2;
+    if (m_autoSetting)
+        SetPen (m_pen);
 
-  if (m_brush.GetStyle() != wxTRANSPARENT)
-  {
-  };
-  
-  if (m_pen.GetStyle() != wxTRANSPARENT)
+    int xx = XLOG2DEV (x);
+    int yy = YLOG2DEV (y);
+    int ww, hh;
+    wxDisplaySize (&ww, &hh);
+    XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, 0, yy,
+        ww, yy);
+    XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xx, 0,
+        xx, hh);
+
+    if (m_window && m_window->GetBackingPixmap())
+    {
+        xx = XLOG2DEV_2 (x);
+        yy = YLOG2DEV_2 (y);
+        XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            0, yy,
+            ww, yy);
+        XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            xx, 0,
+            xx, hh);
+    }
+}
+
+void wxWindowDC::DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    int xx1 = XLOG2DEV (x1);
+    int yy1 = YLOG2DEV (y1);
+    int xx2 = XLOG2DEV (x2);
+    int yy2 = YLOG2DEV (y2);
+    int xxc = XLOG2DEV (xc);
+    int yyc = YLOG2DEV (yc);
+    int xxc_2 = XLOG2DEV_2 (xc);
+    int yyc_2 = YLOG2DEV_2 (yc);
+
+    wxCoord dx = xx1 - xxc;
+    wxCoord dy = yy1 - yyc;
+    double radius = sqrt ((double)(dx * dx + dy * dy));
+    wxCoord r = (wxCoord) radius;
+
+    double radius1, radius2;
+
+    if (xx1 == xx2 && yy1 == yy2)
+    {
+        radius1 = 0.0;
+        radius2 = 360.0;
+    }
+    else if (radius == 0.0)
+        radius1 = radius2 = 0.0;
+    else
+    {
+        if (xx1 - xxc == 0)
+            if (yy1 - yyc < 0)
+                radius1 = 90.0;
+            else
+                radius1 = -90.0;
+            else
+                radius1 = -atan2 ((double) (yy1 - yyc), (double) (xx1 - xxc)) * 360.0 / (2 * M_PI);
+
+            if (xx2 - xxc == 0)
+                if (yy2 - yyc < 0)
+                    radius2 = 90.0;
+                else
+                    radius2 = -90.0;
+                else
+                    radius2 = -atan2 ((double) (yy2 - yyc), (double) (xx2 - xxc)) * 360.0 / (2 * M_PI);
+    }
+    radius1 *= 64.0;
+    radius2 *= 64.0;
+    int alpha1 = (int) radius1;
+    int alpha2 = (int) (radius2 - radius1);
+    while (alpha2 <= 0)
+        alpha2 += 360 * 64;
+    while (alpha2 > 360 * 64)
+        alpha2 -= 360 * 64;
+
+    if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
+    {
+        SetBrush (m_brush);
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) (GC) m_gc,
+            xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
+
+    }
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        if (m_autoSetting)
+            SetPen (m_pen);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
+            xxc - r, yyc - r, 2 * r, 2 * r, alpha1, alpha2);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            xxc_2 - r, yyc_2 - r, 2 * r, 2 * r, alpha1, alpha2);
+    }
+    CalcBoundingBox (x1, y1);
+    CalcBoundingBox (x2, y2);
+}
+
+void wxWindowDC::DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double sa, double ea )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    int xd, yd, wd, hd;
+
+    xd = XLOG2DEV(x);
+    yd = YLOG2DEV(y);
+    wd = XLOG2DEVREL(width);
+    hd = YLOG2DEVREL(height);
+
+    if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
+    if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
+    int start = int(sa*64);
+    int end   = int(ea*64);
+    if (start<0) start+=360*64;
+    if (end  <0) end  +=360*64;
+    if (end>start) end-=start;
+    else end+=360*64-start;
+
+    if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
+    {
+        m_autoSetting = true;    // must be reset
+
+        SetBrush (m_brush);
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start, end);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
+    }
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        if (m_autoSetting)
+            SetPen (m_pen);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, start,end);
+        if (m_window && m_window->GetBackingPixmap())
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y),wd,hd,start,end);
+    }
+    CalcBoundingBox (x, y);
+    CalcBoundingBox (x + width, y + height);
+}
+
+void wxWindowDC::DoDrawPoint( wxCoord x, wxCoord y )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    if (m_pen.Ok() && m_autoSetting)
+        SetPen (m_pen);
+
+    XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y));
+    if (m_window && m_window->GetBackingPixmap())
+        XDrawPoint ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, XLOG2DEV_2 (x), YLOG2DEV_2 (y));
+
+    CalcBoundingBox (x, y);
+}
+
+void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        if (m_autoSetting)
+            SetPen (m_pen);
+
+        XPoint *xpoints = new XPoint[n];
+        int i;
+
+        for (i = 0; i < n; i++)
+        {
+            xpoints[i].x = (short)XLOG2DEV (points[i].x + xoffset);
+            xpoints[i].y = (short)YLOG2DEV (points[i].y + yoffset);
+        }
+        XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints, n, 0);
+
+        if (m_window && m_window->GetBackingPixmap())
+        {
+            for (i = 0; i < n; i++)
+            {
+                xpoints[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
+                xpoints[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
+            }
+            XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints, n, 0);
+        }
+        delete[]xpoints;
+    }
+}
+
+void wxWindowDC::DoDrawPolygon( int n, wxPoint points[],
+                                wxCoord xoffset, wxCoord yoffset, int fillStyle )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    XPoint *xpoints1 = new XPoint[n + 1];
+    XPoint *xpoints2 = new XPoint[n + 1];
+    int i;
+    for (i = 0; i < n; i++)
+    {
+        xpoints1[i].x = (short)XLOG2DEV (points[i].x + xoffset);
+        xpoints1[i].y = (short)YLOG2DEV (points[i].y + yoffset);
+        xpoints2[i].x = (short)XLOG2DEV_2 (points[i].x + xoffset);
+        xpoints2[i].y = (short)YLOG2DEV_2 (points[i].y + yoffset);
+        CalcBoundingBox (points[i].x + xoffset, points[i].y + yoffset);
+    }
+
+    // Close figure for XDrawLines (not needed for XFillPolygon)
+    xpoints1[i].x = xpoints1[0].x;
+    xpoints1[i].y = xpoints1[0].y;
+    xpoints2[i].x = xpoints2[0].x;
+    xpoints2[i].y = xpoints2[0].y;
+
+    if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
+    {
+        SetBrush (m_brush);
+        XSetFillRule ((Display*) m_display, (GC) m_gc, fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
+        XFillPolygon ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n, Complex, 0);
+        XSetFillRule ((Display*) m_display, (GC) m_gc, EvenOddRule);    // default mode
+        if (m_window && m_window->GetBackingPixmap())
+        {
+            XSetFillRule ((Display*) m_display,(GC) m_gcBacking,
+                fillStyle == wxODDEVEN_RULE ? EvenOddRule : WindingRule);
+            XFillPolygon ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n, Complex, 0);
+            XSetFillRule ((Display*) m_display,(GC) m_gcBacking, EvenOddRule);    // default mode
+        }
+    }
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        if (m_autoSetting)
+            SetPen (m_pen);
+        XDrawLines ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xpoints1, n + 1, 0);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XDrawLines ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking, xpoints2, n + 1, 0);
+    }
+
+    delete[]xpoints1;
+    delete[]xpoints2;
+}
+
+void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    int xd, yd, wfd, hfd, wd, hd;
+
+    xd = XLOG2DEV(x);
+    yd = YLOG2DEV(y);
+    wfd = XLOG2DEVREL(width);
+    wd = wfd - WX_GC_CF;
+    hfd = YLOG2DEVREL(height);
+    hd = hfd - WX_GC_CF;
+
+    if (wfd == 0 || hfd == 0) return;
+    if (wd < 0) { wd = - wd; xd = xd - wd; }
+    if (hd < 0) { hd = - hd; yd = yd - hd; }
+
+    if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
+    {
+        SetBrush (m_brush);
+        XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wfd, hfd);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y),
+            wfd, hfd);
+    }
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        if (m_autoSetting)
+            SetPen (m_pen);
+        XDrawRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XDrawRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y),
+            wd, hd);
+    }
+    CalcBoundingBox (x, y);
+    CalcBoundingBox (x + width, y + height);
+}
+
+void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    // If radius is negative, it's a proportion of the smaller dimension.
+
+    if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
+
+    int xd = XLOG2DEV (x);
+    int yd = YLOG2DEV (y);
+    int rd = XLOG2DEVREL ((long) radius);
+    int wd = XLOG2DEVREL (width) - WX_GC_CF;
+    int hd = YLOG2DEVREL (height) - WX_GC_CF;
+
+    int rw_d = rd * 2;
+    int rh_d = rw_d;
+
+    // If radius is zero use DrawRectangle() instead to avoid
+    // X drawing errors with small radii
+    if (rd == 0)
+    {
+        DrawRectangle( x, y, width, height );
+        return;
+    }
+
+    // Draw nothing if transformed w or h is 0
+    if (wd == 0 || hd == 0) return;
+
+    // CMB: adjust size if outline is drawn otherwise the result is
+    // 1 pixel too wide and high
+    if (m_pen.GetStyle() != wxTRANSPARENT)
+    {
+        wd--;
+        hd--;
+    }
+
+    // CMB: ensure dd is not larger than rectangle otherwise we
+    // get an hour glass shape
+    if (rw_d > wd) rw_d = wd;
+    if (rw_d > hd) rw_d = hd;
+    rd = rw_d / 2;
+
+    // For backing pixmap
+    int xd2 = XLOG2DEV_2 (x);
+    int yd2 = YLOG2DEV_2 (y);
+    int rd2 = XLOG2DEVREL ((long) radius);
+    int wd2 = XLOG2DEVREL (width) ;
+    int hd2 = YLOG2DEVREL (height) ;
+
+    int rw_d2 = rd2 * 2;
+    int rh_d2 = rw_d2;
+
+    if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
+    {
+        SetBrush (m_brush);
+
+        XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
+            wd - rw_d, hd);
+        XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
+            wd, hd - rh_d);
+
+        // Arcs start from 3 o'clock, positive angles anticlockwise
+        // Top-left
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
+            rw_d, rh_d, 90 * 64, 90 * 64);
+        // Top-right
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
+            //        rw_d, rh_d, 0, 90 * 64);
+            rw_d, rh_d, 0, 91 * 64);
+        // Bottom-right
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
+            yd + hd - rh_d,
+            //        rw_d, rh_d, 270 * 64, 90 * 64);
+            rw_d, rh_d, 269 * 64, 92 * 64);
+        // Bottom-left
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
+            rw_d, rh_d, 180 * 64, 90 * 64);
+
+        if (m_window && m_window->GetBackingPixmap())
+        {
+            XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + rd2, yd2, wd2 - rw_d2, hd2);
+            XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2, yd2 + rd2, wd2, hd2 - rh_d2);
+
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2, yd2, rw_d2, rh_d2, 90 * 64, 90 * 64);
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + wd2 - rw_d2, yd2,
+                //            rw_d2, rh_d2, 0, 90 * 64);
+                rw_d2, rh_d2, 0, 91 * 64);
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + wd2 - rw_d2,
+                yd2 + hd2 - rh_d2,
+                //            rw_d2, rh_d2, 270 * 64, 90 * 64);
+                rw_d2, rh_d2, 269 * 64, 92 * 64);
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2, yd2 + hd2 - rh_d2,
+                rw_d2, rh_d2, 180 * 64, 90 * 64);
+        }
+    }
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        SetPen (m_pen);
+        XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd,
+            xd + wd - rd + 1, yd);
+        XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + rd, yd + hd,
+            xd + wd - rd, yd + hd);
+
+        XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + rd,
+            xd, yd + hd - rd);
+        XDrawLine ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd, yd + rd,
+            xd + wd, yd + hd - rd + 1);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd,
+            rw_d, rh_d, 90 * 64, 90 * 64);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d, yd,
+            //        rw_d, rh_d, 0, 90 * 64);
+            rw_d, rh_d, 0, 91 * 64);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd + wd - rw_d,
+            yd + hd - rh_d,
+            rw_d, rh_d, 269 * 64, 92 * 64);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd + hd - rh_d,
+            rw_d, rh_d, 180 * 64, 90 * 64);
+
+        if (m_window && m_window->GetBackingPixmap())
+        {
+            XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + rd2, yd2,
+                xd2 + wd2 - rd2 + 1, yd2);
+            XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + rd2, yd2 + hd2,
+                xd2 + wd2 - rd2, yd2 + hd2);
+
+            XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2, yd2 + rd2,
+                xd2, yd2 + hd2 - rd2);
+            XDrawLine ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + wd2, yd2 + rd2,
+                xd2 + wd2, yd2 + hd2 - rd2 + 1);
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2, yd2,
+                rw_d2, rh_d2, 90 * 64, 90 * 64);
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + wd2 - rw_d2, yd2,
+                //            rw_d2, rh_d2, 0, 90 * 64);
+                rw_d2, rh_d2, 0, 91 * 64);
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2 + wd2 - rw_d2,
+                yd2 + hd2 - rh_d2,
+                rw_d2, rh_d2, 269 * 64, 92 * 64);
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                xd2, yd2 + hd2 - rh_d2,
+                rw_d2, rh_d2, 180 * 64, 90 * 64);
+        }
+    }
+    CalcBoundingBox (x, y);
+    CalcBoundingBox (x + width, y + height);
+}
+
+void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    // Check for negative width and height
+    if (height < 0)
+    {
+        y = y + height;
+        height = - height ;
+    }
+
+    if (width < 0)
+    {
+        x = x + width;
+        width = - width ;
+    }
+
+    static const int angle = 23040;
+
+    int xd, yd, wd, hd;
+
+    xd = XLOG2DEV(x);
+    yd = YLOG2DEV(y);
+    wd = XLOG2DEVREL(width) ;
+    hd = YLOG2DEVREL(height) ;
+
+    if (m_brush.Ok() && m_brush.GetStyle () != wxTRANSPARENT)
+    {
+        SetBrush (m_brush);
+        XFillArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
+        if (m_window && m_window->GetBackingPixmap())
+            XFillArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y),
+            XLOG2DEVREL (width) - WX_GC_CF,
+            YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
+    }
+
+    if (m_pen.Ok() && m_pen.GetStyle () != wxTRANSPARENT)
+    {
+        if (m_autoSetting)
+            SetPen (m_pen);
+        XDrawArc ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, xd, yd, wd, hd, 0, angle);
+        if (m_window && m_window->GetBackingPixmap())
+            XDrawArc ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y),
+            XLOG2DEVREL (width) - WX_GC_CF,
+            YLOG2DEVREL (height) - WX_GC_CF, 0, angle);
+    }
+    CalcBoundingBox (x, y);
+    CalcBoundingBox (x + width, y + height);
+
+}
+
+bool wxWindowDC::CanDrawBitmap() const
+{
+    wxCHECK_MSG( Ok(), false, "invalid dc" );
+
+    return true;
+}
+
+// TODO: use scaled Blit e.g. as per John Price's implementation
+// in Contrib/Utilities
+bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
+                         wxCoord width, wxCoord height,
+                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
+                         int rop, bool useMask,
+                         wxCoord xsrcMask, wxCoord ysrcMask )
+{
+    wxCHECK_MSG( Ok(), false, "invalid dc" );
+
+    wxWindowDC* sourceDC = wxDynamicCast(source, wxWindowDC);
+
+    wxASSERT_MSG( sourceDC, "Blit source DC must be wxWindowDC or derived class." );
+
+    // Be sure that foreground pixels (1) of the Icon will be painted with
+    // foreground colour. [m_textForegroundColour] Background pixels (0)
+    // will be painted with backgound colour (m_textBackgroundColour)
+    // Using ::SetPen is horribly slow, so avoid doing it
+    WXPixel oldBackgroundPixel = -1;
+    WXPixel oldForegroundPixel = -1;
+
+    if (m_textBackgroundColour.Ok())
+    {
+        oldBackgroundPixel = m_backgroundPixel;
+        WXPixel pixel = m_textBackgroundColour.AllocColour(m_display);
+
+        XSetBackground ((Display*) m_display, (GC) m_gc, pixel);
+        if (m_window && m_window->GetBackingPixmap())
+            XSetBackground ((Display*) m_display,(GC) m_gcBacking,
+                            pixel);
+    }
+    if (m_textForegroundColour.Ok())
+    {
+        oldForegroundPixel = m_currentColour.GetPixel();
+
+        if( m_textForegroundColour.GetPixel() <= -1 )
+            CalculatePixel( m_textForegroundColour,
+                            m_textForegroundColour, true);
+
+        WXPixel pixel = m_textForegroundColour.GetPixel();
+        if (pixel > -1)
+            SetForegroundPixelWithLogicalFunction(pixel);
+    }
+
+    // Do bitmap scaling if necessary
+
+    wxBitmap *scaledBitmap = (wxBitmap*) NULL;
+    Pixmap sourcePixmap = (Pixmap) NULL;
+    double scaleX, scaleY;
+    GetUserScale(& scaleX, & scaleY);
+    bool retVal = false;
+
+    /* TODO: use the mask origin when drawing transparently */
+    if (xsrcMask == -1 && ysrcMask == -1)
+    {
+        xsrcMask = xsrc; ysrcMask = ysrc;
+    }
+
+    // Sorry, can't scale masks just yet
+    if (!useMask && (scaleX != 1.0 || scaleY != 1.0) && sourceDC->IsKindOf(CLASSINFO(wxMemoryDC)))
+    {
+        wxMemoryDC* memDC = (wxMemoryDC*) sourceDC;
+        wxBitmap& bitmap = memDC->GetBitmap();
+
+        wxASSERT_MSG( (bitmap.Ok()), "Bad source bitmap in wxWindowDC::Blit");
+
+        wxImage image = bitmap.ConvertToImage();
+        if (!image.Ok())
+        {
+            sourcePixmap = (Pixmap) bitmap.GetDrawable();
+        }
+        else
+        {
+            int scaledW = (int) (bitmap.GetWidth() * scaleX);
+            int scaledH = (int) (bitmap.GetHeight() * scaleY);
+
+            image = image.Scale(scaledW, scaledH);
+            scaledBitmap = new wxBitmap(image);
+            sourcePixmap = (Pixmap) scaledBitmap->GetDrawable();
+        }
+    }
+    else
+        sourcePixmap = (Pixmap) sourceDC->m_pixmap;
+
+    if (m_pixmap && sourcePixmap)
+    {
+        /* MATTHEW: [9] */
+        int orig = m_logicalFunction;
+
+        SetLogicalFunction (rop);
+
+        if (m_display != sourceDC->m_display)
+        {
+            XImage *cache = NULL;
+
+            if (m_window && m_window->GetBackingPixmap())
+                XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display,
+                (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),
+                (GC) m_gcBacking,
+                source->LogicalToDeviceX (xsrc),
+                source->LogicalToDeviceY (ysrc),
+                source->LogicalToDeviceXRel(width),
+                source->LogicalToDeviceYRel(height),
+                XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest),
+                True, &cache);
+
+            if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
+            {
+                wxMemoryDC *memDC = (wxMemoryDC *)source;
+                wxBitmap& sel = memDC->GetBitmap();
+                if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
+                {
+                    XSetClipMask   ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
+                    XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
+                }
+            }
+
+            XCopyRemote((Display*) sourceDC->m_display, (Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
+                source->LogicalToDeviceX (xsrc),
+                source->LogicalToDeviceY (ysrc),
+                source->LogicalToDeviceXRel(width),
+                source->LogicalToDeviceYRel(height),
+                XLOG2DEV (xdest), YLOG2DEV (ydest),
+                False, &cache);
+
+            if ( useMask )
+            {
+                if ( m_clipRegion )
+                    XSetRegion ((Display*) m_display, (GC) m_gc,
+                                (Region) m_clipRegion);
+                else
+                    XSetClipMask   ((Display*) m_display, (GC) m_gc, None);
+
+                XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
+            }
+
+        } else
+        {        //XGCValues values;
+        //XGetGCValues((Display*)m_display, (GC)m_gc, GCForeground, &values);
+
+            if (m_window && m_window->GetBackingPixmap())
+            {
+                // +++ MARKUS (mho@comnets.rwth-aachen): error on blitting bitmaps with depth 1
+                if (source->IsKindOf(CLASSINFO(wxMemoryDC)) && ((wxMemoryDC*) source)->GetBitmap().GetDepth() == 1)
+                {
+                    XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                        source->LogicalToDeviceX (xsrc),
+                        source->LogicalToDeviceY (ysrc),
+                        source->LogicalToDeviceXRel(width),
+                        source->LogicalToDeviceYRel(height),
+                        XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest), 1);
+                }
+                else
+                {
+                    XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                        source->LogicalToDeviceX (xsrc),
+                        source->LogicalToDeviceY (ysrc),
+                        source->LogicalToDeviceXRel(width),
+                        source->LogicalToDeviceYRel(height),
+                        XLOG2DEV_2 (xdest), YLOG2DEV_2 (ydest));
+                }
+            }
+            if ( useMask && source->IsKindOf(CLASSINFO(wxMemoryDC)) )
+            {
+                wxMemoryDC *memDC = (wxMemoryDC *)source;
+                wxBitmap& sel = memDC->GetBitmap();
+                if ( sel.Ok() && sel.GetMask() && sel.GetMask()->GetBitmap() )
+                {
+                    XSetClipMask   ((Display*) m_display, (GC) m_gc, (Pixmap) sel.GetMask()->GetBitmap());
+                    XSetClipOrigin ((Display*) m_display, (GC) m_gc, XLOG2DEV (xdest), YLOG2DEV (ydest));
+                }
+            }
+
+            // Check if we're copying from a mono bitmap
+            if (source->IsKindOf(CLASSINFO(wxMemoryDC)) &&
+                ((wxMemoryDC*)source)->GetBitmap().Ok() && (((wxMemoryDC*)source)->GetBitmap().GetDepth () == 1))
+            {
+                XCopyPlane ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
+                    source->LogicalToDeviceX (xsrc),
+                    source->LogicalToDeviceY (ysrc),
+                    source->LogicalToDeviceXRel(width),
+                    source->LogicalToDeviceYRel(height),
+                    XLOG2DEV (xdest), YLOG2DEV (ydest), 1);
+            }
+            else
+            {
+                XCopyArea ((Display*) m_display, (Pixmap) sourcePixmap, (Pixmap) m_pixmap, (GC) m_gc,
+                    source->LogicalToDeviceX (xsrc),
+                    source->LogicalToDeviceY (ysrc),
+                    source->LogicalToDeviceXRel(width),
+                    source->LogicalToDeviceYRel(height),
+                    XLOG2DEV (xdest), YLOG2DEV (ydest));
+
+            }
+            if ( useMask )
+            {
+                if ( m_clipRegion )
+                    XSetRegion ((Display*) m_display, (GC) m_gc,
+                                (Region) m_clipRegion);
+                else
+                    XSetClipMask   ((Display*) m_display, (GC) m_gc, None);
+
+                XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
+            }
+
+        } /* Remote/local (Display*) m_display */
+        CalcBoundingBox (xdest, ydest);
+        CalcBoundingBox (xdest + width, ydest + height);
+
+        SetLogicalFunction(orig);
+
+        retVal = true;
+  }
+  if (scaledBitmap) delete scaledBitmap;
+
+  if (oldBackgroundPixel > -1)
   {
-  };
-};
-
-void wxWindowDC::DrawEllipse( long x, long y, long width, long height )
-{
-  if (!Ok()) return;
-  
-  long xx = XLOG2DEV(x);    
-  long yy = YLOG2DEV(y);
-  long ww = m_signX * XLOG2DEVREL(width); 
-  long hh = m_signY * YLOG2DEVREL(height);
-
-  // CMB: handle -ve width and/or height
-  if (ww < 0) { ww = -ww; xx = xx - ww; }
-  if (hh < 0) { hh = -hh; yy = yy - hh; }
-  
-  if (m_brush.GetStyle() != wxTRANSPARENT) {};
-  
-  if (m_pen.GetStyle() != wxTRANSPARENT) {};
-};
-
-bool wxWindowDC::CanDrawBitmap(void) const
-{
-  return TRUE;
-};
-
-void wxWindowDC::DrawIcon( const wxIcon &icon, long x, long y, bool useMask )
-{
-  if (!Ok()) return;
-  
-  if (!icon.Ok()) return;
-  
-  int xx = XLOG2DEV(x);
-  int yy = YLOG2DEV(y);
-  
-};
-
-bool wxWindowDC::Blit( long xdest, long ydest, long width, long height,
-       wxDC *source, long xsrc, long ysrc, int WXUNUSED(logical_func), bool WXUNUSED(useMask) )
-{
-  if (!Ok()) return FALSE;
-  
-  // CMB 20/5/98: add blitting of bitmaps
-  if (source->IsKindOf(CLASSINFO(wxMemoryDC)))
+      XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
+      if (m_window && m_window->GetBackingPixmap())
+          XSetBackground ((Display*) m_display,(GC) m_gcBacking,
+                          oldBackgroundPixel);
+  }
+  if (oldForegroundPixel > -1)
   {
-    wxMemoryDC* srcDC = (wxMemoryDC*)source;
-    /*
-     GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
-    if (bmap)
-    {
-      gdk_draw_bitmap (
-          m_window,
-          m_textGC,
-          bmap,
-          source->DeviceToLogicalX(xsrc), source->DeviceToLogicalY(ysrc),
-          XLOG2DEV(xdest), YLOG2DEV(ydest),
-          source->DeviceToLogicalXRel(width), source->DeviceToLogicalYRel(height)
-          );
-      return TRUE;
-    }
-    */
+      XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
+      if (m_window && m_window->GetBackingPixmap())
+          XSetForeground ((Display*) m_display,(GC) m_gcBacking,
+                          oldForegroundPixel);
   }
 
-  return TRUE;
-};
+  return retVal;
+}
 
-void wxWindowDC::DrawText( const wxString &text, long x, long y, bool
-WXUNUSED(use16) )
+void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
 {
-  if (!Ok()) return;
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    // Since X draws from the baseline of the text, must add the text height
+    int cx = 0;
+    int cy = 0;
+    int ascent = 0;
+    int slen = text.length();
+
+    // Set FillStyle, otherwise X will use current stipple!
+    XGCValues gcV, gcBackingV;
+
+    XGetGCValues ((Display*) m_display, (GC)m_gc, GCFillStyle, &gcV);
+    XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
+    if (m_window && m_window->GetBackingPixmap())
+    {
+        XGetGCValues ((Display*) m_display, (GC)m_gcBacking, GCFillStyle,
+                      &gcBackingV );
+        XSetFillStyle ((Display*) m_display, (GC) m_gcBacking, FillSolid);
+    }
 
-};
+    if (m_font.Ok())
+        wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
+                         text, &cx, &cy, &ascent, NULL);
 
+    // First draw a rectangle representing the text background, if a text
+    // background is specified
+    if (m_textBackgroundColour.Ok () && (m_backgroundMode != wxTRANSPARENT))
+    {
+        wxColour oldPenColour = m_currentColour;
+        m_currentColour = m_textBackgroundColour;
+        bool sameColour = (oldPenColour.Ok () && m_textBackgroundColour.Ok () &&
+            (oldPenColour.Red () == m_textBackgroundColour.Red ()) &&
+            (oldPenColour.Blue () == m_textBackgroundColour.Blue ()) &&
+            (oldPenColour.Green () == m_textBackgroundColour.Green ()));
+
+        // This separation of the big && test required for gcc2.7/HP UX 9.02
+        // or pixel value can be corrupted!
+        sameColour = (sameColour &&
+            (oldPenColour.GetPixel() == m_textBackgroundColour.GetPixel()));
+
+        if (!sameColour || !GET_OPTIMIZATION)
+        {
+            WXPixel pixel = m_textBackgroundColour.AllocColour(m_display);
+            m_currentColour = m_textBackgroundColour;
+
+            // Set the GC to the required colour
+            if (pixel > -1)
+            {
+                XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
+                if (m_window && m_window->GetBackingPixmap())
+                    XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
+            }
+        }
+        else
+            m_textBackgroundColour = oldPenColour ;
+
+        XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y), cx, cy);
+        if (m_window && m_window->GetBackingPixmap())
+            XFillRectangle ((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y), cx, cy);
+    }
 
+    // Now set the text foreground and draw the text
+    if (m_textForegroundColour.Ok ())
+    {
+        wxColour oldPenColour = m_currentColour;
+        m_currentColour = m_textForegroundColour;
+        bool sameColour = (oldPenColour.Ok () && m_currentColour.Ok () &&
+            (oldPenColour.Red () == m_currentColour.Red ()) &&
+            (oldPenColour.Blue () == m_currentColour.Blue ()) &&
+            (oldPenColour.Green () == m_currentColour.Green ()) &&
+            (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
+
+        if (!sameColour || !GET_OPTIMIZATION)
+        {
+            WXPixel pixel = CalculatePixel(m_textForegroundColour,
+                                           m_currentColour, false);
+
+            // Set the GC to the required colour
+            if (pixel > -1)
+            {
+                XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
+                if (m_window && m_window->GetBackingPixmap())
+                    XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
+            }
+        }
+        else
+            m_textForegroundColour = oldPenColour;
+    }
 
-bool wxWindowDC::CanGetTextExtent(void) const
+    // We need to add the ascent, not the whole height, since X draws at the
+    // point above the descender.
+#if 0
+    if (use16)
+        XDrawString16((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent,
+        (XChar2b *)(char*) (const char*) text, slen);
+    else
+#endif // 0
+#if wxMOTIF_NEW_FONT_HANDLING
+        XFontSet fset = (XFontSet) m_font.GetFontSet (m_userScaleY * m_logicalScaleY, m_display);
+        XmbDrawString((Display*) m_display, (Pixmap) m_pixmap, fset, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
+#else
+        XDrawString((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc, XLOG2DEV (x), YLOG2DEV (y) + ascent, text, slen);
+#endif
+
+    if (m_window && m_window->GetBackingPixmap()) {
+#if 0
+        if (use16)
+            XDrawString16((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
+            (XChar2b *)(char*) (const char*) text, slen);
+        else
+#endif // 0
+#if wxMOTIF_NEW_FONT_HANDLING
+            XmbDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), fset, (GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
+                        wxConstCast(text.c_str(), char), slen);
+#else
+            XDrawString((Display*) m_display, (Pixmap) m_window->GetBackingPixmap(), (GC) m_gcBacking,
+            XLOG2DEV_2 (x), YLOG2DEV_2 (y) + ascent,
+                        wxConstCast(text.c_str(), char), slen);
+#endif
+    }
+
+    // restore fill style
+    XSetFillStyle ((Display*) m_display, (GC) m_gc, gcV.fill_style);
+    if (m_window && m_window->GetBackingPixmap())
+        XSetFillStyle ((Display*) m_display, (GC) m_gcBacking,
+                       gcBackingV.fill_style);
+
+    wxCoord w, h;
+    GetTextExtent (text, &w, &h);
+    CalcBoundingBox (x + w, y + h);
+    CalcBoundingBox (x, y);
+}
+
+void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y,
+                                    double angle )
 {
-  return TRUE;
-};
+    if (angle == 0.0)
+    {
+        DrawText(text, x, y);
+        return;
+    }
+
+    wxCHECK_RET( Ok(), "invalid dc" );
 
-void wxWindowDC::GetTextExtent( const wxString &string, long *width, long *height,
-                     long *WXUNUSED(descent), long *WXUNUSED(externalLeading),
-                     wxFont *WXUNUSED(theFont), bool WXUNUSED(use16) )
+    WXPixel oldBackgroundPixel = -1;
+    WXPixel oldForegroundPixel = -1;
+    WXPixel foregroundPixel = -1;
+    WXPixel backgroundPixel = -1;
+
+    if (m_textBackgroundColour.Ok())
+    {
+        oldBackgroundPixel = m_backgroundPixel;
+        backgroundPixel = m_textBackgroundColour.AllocColour(m_display);
+    }
+    if (m_textForegroundColour.Ok())
+    {
+        oldForegroundPixel = m_currentColour.GetPixel();
+
+        if( m_textForegroundColour.GetPixel() <= -1 )
+            CalculatePixel( m_textForegroundColour,
+                            m_textForegroundColour, true);
+
+        foregroundPixel = m_textForegroundColour.GetPixel();
+    }
+
+    // Since X draws from the baseline of the text, must add the text height
+    int cx = 0;
+    int cy = 0;
+    int ascent = 0;
+
+    if (m_font.Ok())
+        wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
+                         text, &cx, &cy, &ascent, NULL);
+
+    wxBitmap src(cx, cy);
+    wxMemoryDC dc;
+    dc.SelectObject(src);
+    dc.SetFont(GetFont());
+    dc.SetBackground(*wxWHITE_BRUSH);
+    dc.SetBrush(*wxBLACK_BRUSH);
+    dc.Clear();
+    dc.DrawText(text, 0, 0);
+    dc.SetFont(wxNullFont);
+
+    // Calculate the size of the rotated bounding box.
+    double dx = cos(angle / 180.0 * M_PI);
+    double dy = sin(angle / 180.0 * M_PI);
+    double x4 = cy * dy;
+    double y4 = cy * dx;
+    double x3 = cx * dx;
+    double y3 = -cx * dy;
+    double x2 = x3 + x4;
+    double y2 = y3 + y4;
+    double x1 = x;
+    double y1 = y;
+
+    // Create image from the source bitmap after writing the text into it.
+    wxImage  image = src.ConvertToImage();
+
+    int minx = roundmin(0, roundmin(x4, roundmin(x2, x3)));
+    int miny = roundmin(0, roundmin(y4, roundmin(y2, y3)));
+    int maxx = roundmax(0, roundmax(x4, roundmax(x2, x3)));
+    int maxy = roundmax(0, roundmax(y4, roundmax(y2, y3)));
+
+    bool lastFore = false, lastBack = false;
+
+    // This rotates counterclockwise around the top left corner.
+    for (int rx = minx; rx < maxx; rx++)
+    {
+        for (int ry = miny; ry < maxy; ry++)
+        {
+            // transform dest coords to source coords
+            int sx = (int) (rx * dx - ry * dy + 0.5);
+            int sy = - (int) (-ry * dx - rx * dy + 0.5);
+            if (sx >= 0 && sx < cx && sy >= 0 && sy < cy)
+            {
+                bool textPixel = image.GetRed(sx, sy) == 0;
+
+                if (!textPixel && m_backgroundMode != wxSOLID)
+                    continue;
+
+                wxCoord ox = (wxCoord) (x1 + rx),
+                        oy = (wxCoord) (y1 + ry);
+                // draw black pixels, ignore white ones (i.e. transparent b/g)
+                if (textPixel && !lastFore)
+                {
+                    XSetForeground ((Display*) m_display, (GC) m_gc,
+                                    foregroundPixel);
+                    lastFore = true;
+                    lastBack = false;
+                }
+                else if (!textPixel && !lastBack)
+                {
+                    XSetForeground ((Display*) m_display, (GC) m_gc,
+                                    backgroundPixel);
+                    lastFore = false;
+                    lastBack = true;
+                }
+
+                XDrawPoint ((Display*) m_display, (Pixmap) m_pixmap,
+                            (GC) m_gc, XLOG2DEV (ox), YLOG2DEV (oy));
+                if (m_window && m_window->GetBackingPixmap())
+                    XDrawPoint ((Display*) m_display,
+                                (Pixmap) m_window->GetBackingPixmap(),
+                                (GC) m_gcBacking,
+                                XLOG2DEV_2 (ox), YLOG2DEV_2 (oy));
+            }
+        }
+    }
+
+    if (oldBackgroundPixel > -1)
+    {
+        XSetBackground ((Display*) m_display, (GC) m_gc, oldBackgroundPixel);
+        if (m_window && m_window->GetBackingPixmap())
+            XSetBackground ((Display*) m_display,(GC) m_gcBacking,
+                            oldBackgroundPixel);
+    }
+    if (oldForegroundPixel > -1)
+    {
+        XSetForeground ((Display*) m_display, (GC) m_gc, oldForegroundPixel);
+        if (m_window && m_window->GetBackingPixmap())
+            XSetForeground ((Display*) m_display,(GC) m_gcBacking,
+                            oldForegroundPixel);
+    }
+
+    CalcBoundingBox (minx, miny);
+    CalcBoundingBox (maxx, maxy);
+}
+
+bool wxWindowDC::CanGetTextExtent() const
 {
-  if (!Ok()) return;
-  
-};
+    return true;
+}
 
-long wxWindowDC::GetCharWidth(void)
+void wxWindowDC::DoGetTextExtent( const wxString &string, wxCoord *width, wxCoord *height,
+                                wxCoord *descent, wxCoord *externalLeading,
+                                wxFont *font ) const
 {
-  if (!Ok()) return 0;
-  return 0;
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    const wxFont* theFont = font ? font : &m_font;
 
-long wxWindowDC::GetCharHeight(void)
+    if (!theFont->Ok())
+    {
+        // TODO: this should be an error log function
+        wxFAIL_MSG("set a valid font before calling GetTextExtent!");
+
+        if (width) *width = -1;
+        if (height) *height = -1;
+        return;
+    }
+
+    wxGetTextExtent(m_display, *theFont, m_userScaleY * m_logicalScaleY,
+                    string, width, height, NULL, descent);
+
+    if (width) *width = XDEV2LOGREL (*width);
+    if (height) *height = YDEV2LOGREL (*height);
+    if (externalLeading)
+        *externalLeading = 0;
+}
+
+wxCoord wxWindowDC::GetCharWidth() const
+{
+    wxCHECK_MSG( Ok(), 0, "invalid dc" );
+    wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
+
+    int width;
+
+    wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
+                     "x", &width, NULL, NULL, NULL);
+
+    return XDEV2LOGREL(width);
+}
+
+wxCoord wxWindowDC::GetCharHeight() const
+{
+    wxCHECK_MSG( Ok(), 0, "invalid dc" );
+    wxCHECK_MSG( m_font.Ok(), 0, "invalid font" );
+
+    int height;
+
+    wxGetTextExtent (m_display, m_font, m_userScaleY * m_logicalScaleY,
+                     "x", NULL, &height, NULL, NULL);
+
+    return XDEV2LOGREL(height);
+}
+
+void wxWindowDC::DoGetSize( int *width, int *height ) const
+{
+    int w = 0, h = 0;
+
+    if( m_window )
+    {
+        if( m_window->GetBackingPixmap() )
+        {
+            w = m_window->GetPixmapWidth();
+            h = m_window->GetPixmapHeight();
+        }
+        else
+            m_window->GetSize( &w, &h );
+    }
+
+    if( width ) *width = w;
+    if( height ) *height = h;
+}
+
+void wxWindowDC::Clear()
 {
-  if (!Ok()) return 0;
-  return 0;
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
 
-void wxWindowDC::Clear(void)
+    wxRect rect( GetSize() );
+    Clear( rect );
+}
+
+void wxWindowDC::Clear(const wxRect& rect)
 {
-  if (!Ok()) return;
-  
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    int x = rect.x; int y = rect.y;
+    int w = rect.width; int h = rect.height;
+
+    wxBrush saveBrush = m_brush;
+    SetBrush (m_backgroundBrush);
+
+    XFillRectangle ((Display*) m_display, (Pixmap) m_pixmap, (GC) m_gc,
+                    x, y, w, h);
+
+    if (m_window && m_window->GetBackingPixmap())
+        XFillRectangle ((Display*) m_display,
+                        (Pixmap) m_window->GetBackingPixmap(),(GC) m_gcBacking,
+                        x, y, w, h);
+
+    m_brush = saveBrush;
+}
 
 void wxWindowDC::SetFont( const wxFont &font )
 {
-  if (!Ok()) return;
-  
-  m_font = font;
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    m_font = font;
+
+    if (!m_font.Ok())
+    {
+        return;
+    }
+
+#if !wxMOTIF_NEW_FONT_HANDLING
+    WXFontStructPtr pFontStruct = m_font.GetFontStruct(m_userScaleY*m_logicalScaleY, m_display);
+
+    Font fontId = ((XFontStruct*)pFontStruct)->fid;
+    XSetFont ((Display*) m_display, (GC) m_gc, fontId);
+
+    if (m_window && m_window->GetBackingPixmap())
+        XSetFont ((Display*) m_display,(GC) m_gcBacking, fontId);
+#endif
+}
+
+void wxWindowDC::SetForegroundPixelWithLogicalFunction(WXPixel pixel)
+{
+    if (m_logicalFunction == wxXOR)
+    {
+        XGCValues values;
+        XGetGCValues ((Display*) m_display, (GC) m_gc, GCBackground, &values);
+        XSetForeground ((Display*) m_display, (GC) m_gc,
+                        pixel ^ values.background);
+        if (m_window && m_window->GetBackingPixmap())
+            XSetForeground ((Display*) m_display,(GC) m_gcBacking,
+                            pixel ^ values.background);
+    }
+    else
+    {
+        XSetForeground ((Display*) m_display, (GC) m_gc, pixel);
+        if (m_window && m_window->GetBackingPixmap())
+            XSetForeground ((Display*) m_display,(GC) m_gcBacking, pixel);
+    }
+}
+
+WXPixel wxWindowDC::CalculatePixel(wxColour& colour, wxColour& curCol,
+                               bool roundToWhite) const
+{
+    const unsigned char wp = (unsigned char)255;
+
+    WXPixel pixel = -1;
+    if(!m_colour) // Mono display
+    {
+        unsigned char red = colour.Red ();
+        unsigned char blue = colour.Blue ();
+        unsigned char green = colour.Green ();
+        // white
+        if((red == wp && blue == wp && green == wp) ||
+           // not black and roundToWhite was specified
+           ((red != 0 || blue != 0 || green != 0) && roundToWhite))
+        {
+            curCol = *wxWHITE;
+            pixel = WhitePixel((Display*) m_display,
+                               DefaultScreen((Display*) m_display));
+            curCol.SetPixel(pixel);
+            colour.SetPixel(pixel);
+        }
+        else
+        {
+            curCol = *wxBLACK;
+            pixel = BlackPixel((Display*) m_display,
+                               DefaultScreen((Display*) m_display));
+            curCol.SetPixel(pixel);
+            colour.SetPixel(pixel);
+        }
+    }
+    else
+    {
+        curCol = colour;
+        pixel = colour.AllocColour((Display*) m_display);
+        curCol.SetPixel(pixel);
+    }
+
+    return pixel;
+}
 
 void wxWindowDC::SetPen( const wxPen &pen )
 {
-  if (!Ok()) return;
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    m_pen = pen;
+    if (!m_pen.Ok())
+        return;
+
+    wxBitmap oldStipple = m_currentStipple;
+    int oldStyle = m_currentStyle;
+    int oldFill = m_currentFill;
+    int old_pen_width = m_currentPenWidth;
+    int old_pen_join = m_currentPenJoin;
+    int old_pen_cap = m_currentPenCap;
+    int old_pen_nb_dash = m_currentPenDashCount;
+    wxX11Dash *old_pen_dash = m_currentPenDash;
+
+    wxColour oldPenColour = m_currentColour;
+    m_currentColour = m_pen.GetColour ();
+    m_currentStyle = m_pen.GetStyle ();
+    m_currentFill = m_pen.GetStyle (); // TODO?
+    m_currentPenWidth = m_pen.GetWidth ();
+    m_currentPenJoin = m_pen.GetJoin ();
+    m_currentPenCap = m_pen.GetCap ();
+    m_currentPenDashCount = m_pen.GetDashCount();
+    m_currentPenDash = (wxX11Dash*)m_pen.GetDash();
+
+    if (m_currentStyle == wxSTIPPLE)
+        m_currentStipple = * m_pen.GetStipple ();
+
+    bool sameStyle = (oldStyle == m_currentStyle &&
+        oldFill == m_currentFill &&
+        old_pen_join == m_currentPenJoin &&
+        old_pen_cap == m_currentPenCap &&
+        old_pen_nb_dash == m_currentPenDashCount &&
+        old_pen_dash == m_currentPenDash &&
+        old_pen_width == m_currentPenWidth);
+
+    bool sameColour = (oldPenColour.Ok () &&
+        (oldPenColour.Red () == m_currentColour.Red ()) &&
+        (oldPenColour.Blue () == m_currentColour.Blue ()) &&
+        (oldPenColour.Green () == m_currentColour.Green ()) &&
+        (oldPenColour.GetPixel() == m_currentColour.GetPixel()));
+
+    if (!sameStyle || !GET_OPTIMIZATION)
+    {
+        int scaled_width = (int) XLOG2DEVREL (m_pen.GetWidth ());
+        if (scaled_width < 0)
+            scaled_width = 0;
+
+        int style;
+        int join;
+        int cap;
+        static const wxX11Dash dotted[] = {2, 5};
+        static const wxX11Dash short_dashed[] = {4, 4};
+        static const wxX11Dash long_dashed[] = {4, 8};
+        static const wxX11Dash dotted_dashed[] = {6, 6, 2, 6};
+
+        // We express dash pattern in pen width unit, so we are
+        // independent of zoom factor and so on...
+        int req_nb_dash;
+        const wxX11Dash *req_dash;
+
+        switch (m_pen.GetStyle ())
+        {
+        case wxUSER_DASH:
+            req_nb_dash = m_currentPenDashCount;
+            req_dash = m_currentPenDash;
+            style = LineOnOffDash;
+            break;
+        case wxDOT:
+            req_nb_dash = 2;
+            req_dash = dotted;
+            style = LineOnOffDash;
+            break;
+        case wxSHORT_DASH:
+            req_nb_dash = 2;
+            req_dash = short_dashed;
+            style = LineOnOffDash;
+            break;
+        case wxLONG_DASH:
+            req_nb_dash = 2;
+            req_dash = long_dashed;
+            style = LineOnOffDash;
+            break;
+        case wxDOT_DASH:
+            req_nb_dash = 4;
+            req_dash = dotted_dashed;
+            style = LineOnOffDash;
+            break;
+        case wxSTIPPLE:
+        case wxSOLID:
+        case wxTRANSPARENT:
+        default:
+            style = LineSolid;
+            req_dash = (wxX11Dash*)NULL;
+            req_nb_dash = 0;
+        }
+
+        if (req_dash && req_nb_dash)
+        {
+            wxX11Dash *real_req_dash = new wxX11Dash[req_nb_dash];
+            if (real_req_dash)
+            {
+                int factor = scaled_width == 0 ? 1 : scaled_width;
+                for (int i = 0; i < req_nb_dash; i++)
+                    real_req_dash[i] = (wxX11Dash)(req_dash[i] * factor);
+                XSetDashes ((Display*) m_display, (GC) m_gc, 0, real_req_dash, req_nb_dash);
+
+                if (m_window && m_window->GetBackingPixmap())
+                    XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, real_req_dash, req_nb_dash);
+                delete[]real_req_dash;
+            }
+            else
+            {
+                // No Memory. We use non-scaled dash pattern...
+                XSetDashes ((Display*) m_display, (GC) m_gc, 0, req_dash, req_nb_dash);
+
+                if (m_window && m_window->GetBackingPixmap())
+                    XSetDashes ((Display*) m_display,(GC) m_gcBacking, 0, req_dash, req_nb_dash);
+            }
+        }
+
+        switch (m_pen.GetCap ())
+        {
+        case wxCAP_PROJECTING:
+            cap = CapProjecting;
+            break;
+        case wxCAP_BUTT:
+            cap = CapButt;
+            break;
+        case wxCAP_ROUND:
+        default:
+            cap = (scaled_width <= 1) ? CapNotLast : CapRound;
+            break;
+        }
+
+        switch (m_pen.GetJoin ())
+        {
+        case wxJOIN_BEVEL:
+            join = JoinBevel;
+            break;
+        case wxJOIN_MITER:
+            join = JoinMiter;
+            break;
+        case wxJOIN_ROUND:
+        default:
+            join = JoinRound;
+            break;
+        }
+
+        XSetLineAttributes ((Display*) m_display, (GC) m_gc, scaled_width, style, cap, join);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XSetLineAttributes ((Display*) m_display,(GC) m_gcBacking, scaled_width, style, cap, join);
+    }
 
-  if (m_pen == pen) return;
-  
-  m_pen = pen;
-  
-  if (!m_pen.Ok()) return;
-};
+    if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
+    {
+        Pixmap myStipple;
+
+        oldStipple = wxNullBitmap;    // For later reset!!
+
+        switch (m_currentFill)
+        {
+        case wxBDIAGONAL_HATCH:
+            if (bdiag == (Pixmap) 0)
+                bdiag = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                bdiag_bits, bdiag_width, bdiag_height);
+            myStipple = bdiag;
+            break;
+        case wxFDIAGONAL_HATCH:
+            if (fdiag == (Pixmap) 0)
+                fdiag = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                fdiag_bits, fdiag_width, fdiag_height);
+            myStipple = fdiag;
+            break;
+        case wxCROSS_HATCH:
+            if (cross == (Pixmap) 0)
+                cross = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                cross_bits, cross_width, cross_height);
+            myStipple = cross;
+            break;
+        case wxHORIZONTAL_HATCH:
+            if (horiz == (Pixmap) 0)
+                horiz = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                horiz_bits, horiz_width, horiz_height);
+            myStipple = horiz;
+            break;
+        case wxVERTICAL_HATCH:
+            if (verti == (Pixmap) 0)
+                verti = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                verti_bits, verti_width, verti_height);
+            myStipple = verti;
+            break;
+        case wxCROSSDIAG_HATCH:
+        default:
+            if (cdiag == (Pixmap) 0)
+                cdiag = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                cdiag_bits, cdiag_width, cdiag_height);
+            myStipple = cdiag;
+            break;
+        }
+        XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
+    }
+    else if (m_currentStipple.Ok()
+        && ((m_currentStipple != oldStipple) || !GET_OPTIMIZATION))
+    {
+        XSetStipple ((Display*) m_display, (GC) m_gc, (Pixmap) m_currentStipple.GetDrawable());
+
+        if (m_window && m_window->GetBackingPixmap())
+            XSetStipple ((Display*) m_display,(GC) m_gcBacking, (Pixmap) m_currentStipple.GetDrawable());
+    }
+
+    if ((m_currentFill != oldFill) || !GET_OPTIMIZATION)
+    {
+        int fill_style;
+
+        if (m_currentFill == wxSTIPPLE)
+            fill_style = FillStippled;
+        else if (IS_HATCH (m_currentFill))
+            fill_style = FillStippled;
+        else
+            fill_style = FillSolid;
+        XSetFillStyle ((Display*) m_display, (GC) m_gc, fill_style);
+        if (m_window && m_window->GetBackingPixmap())
+            XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, fill_style);
+    }
+
+    // must test m_logicalFunction, because it involves background!
+    if (!sameColour || !GET_OPTIMIZATION
+        || ((m_logicalFunction == wxXOR) || (m_autoSetting & 0x2)))
+    {
+        WXPixel pixel = -1;
+        if (m_pen.GetStyle () == wxTRANSPARENT)
+            pixel = m_backgroundPixel;
+        else
+        {
+            pixel = CalculatePixel(m_pen.GetColour(), m_currentColour, false);
+        }
+
+        // Finally, set the GC to the required colour
+        if (pixel > -1)
+            SetForegroundPixelWithLogicalFunction(pixel);
+    }
+    else
+        m_pen.GetColour().SetPixel(oldPenColour.GetPixel());
+
+    m_autoSetting = 0;
+}
 
 void wxWindowDC::SetBrush( const wxBrush &brush )
 {
-  if (!Ok()) return;
-  
-  if (m_brush == brush) return;
-  
-  m_brush = brush;
-  
-  if (!m_brush.Ok()) return;
-  
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    m_brush = brush;
+
+    if (!m_brush.Ok() || m_brush.GetStyle () == wxTRANSPARENT)
+        return;
+
+    int oldFill = m_currentFill;
+    wxBitmap oldStipple = m_currentStipple;
+
+    m_autoSetting |= 0x1;
+
+    m_currentFill = m_brush.GetStyle ();
+    if (m_currentFill == wxSTIPPLE)
+        m_currentStipple = * m_brush.GetStipple ();
+
+    wxColour oldBrushColour(m_currentColour);
+    m_currentColour = m_brush.GetColour ();
+
+    bool sameColour = (oldBrushColour.Ok () &&
+        (oldBrushColour.Red () == m_currentColour.Red ()) &&
+        (oldBrushColour.Blue () == m_currentColour.Blue ()) &&
+        (oldBrushColour.Green () == m_currentColour.Green ()) &&
+        (oldBrushColour.GetPixel() == m_currentColour.GetPixel()));
+
+    int stippleDepth = -1;
+
+    if ((oldFill != m_brush.GetStyle ()) || !GET_OPTIMIZATION)
+    {
+        switch (brush.GetStyle ())
+        {
+        case wxTRANSPARENT:
+            break;
+        case wxSTIPPLE:
+            stippleDepth = m_currentStipple.GetDepth();
+            // fall through!
+        case wxBDIAGONAL_HATCH:
+        case wxCROSSDIAG_HATCH:
+        case wxFDIAGONAL_HATCH:
+        case wxCROSS_HATCH:
+        case wxHORIZONTAL_HATCH:
+        case wxVERTICAL_HATCH:
+            {
+                if (stippleDepth == -1) stippleDepth = 1;
+
+                // Chris Breeze 23/07/97: use background mode to
+                // determine whether fill style should be solid or
+                // transparent
+                int style = stippleDepth == 1 ?
+                    (m_backgroundMode == wxSOLID ?
+                     FillOpaqueStippled : FillStippled) :
+                    FillTiled;
+                XSetFillStyle ((Display*) m_display, (GC) m_gc, style);
+                if (m_window && m_window->GetBackingPixmap())
+                    XSetFillStyle ((Display*) m_display,(GC) m_gcBacking, style);
+            }
+            break;
+        case wxSOLID:
+        default:
+            XSetFillStyle ((Display*) m_display, (GC) m_gc, FillSolid);
+            if (m_window && m_window->GetBackingPixmap())
+                XSetFillStyle ((Display*) m_display,(GC) m_gcBacking,
+                               FillSolid);
+        }
+    }
+
+    if (IS_HATCH(m_currentFill) && ((m_currentFill != oldFill) || !GET_OPTIMIZATION))
+    {
+        Pixmap myStipple;
+
+        switch (m_currentFill)
+        {
+        case wxBDIAGONAL_HATCH:
+            if (bdiag == (Pixmap) 0)
+                bdiag = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                bdiag_bits, bdiag_width, bdiag_height);
+            myStipple = bdiag;
+            break;
+        case wxFDIAGONAL_HATCH:
+            if (fdiag == (Pixmap) 0)
+                fdiag = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                fdiag_bits, fdiag_width, fdiag_height);
+            myStipple = fdiag;
+            break;
+        case wxCROSS_HATCH:
+            if (cross == (Pixmap) 0)
+                cross = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                cross_bits, cross_width, cross_height);
+            myStipple = cross;
+            break;
+        case wxHORIZONTAL_HATCH:
+            if (horiz == (Pixmap) 0)
+                horiz = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                horiz_bits, horiz_width, horiz_height);
+            myStipple = horiz;
+            break;
+        case wxVERTICAL_HATCH:
+            if (verti == (Pixmap) 0)
+                verti = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                verti_bits, verti_width, verti_height);
+            myStipple = verti;
+            break;
+        case wxCROSSDIAG_HATCH:
+        default:
+            if (cdiag == (Pixmap) 0)
+                cdiag = XCreateBitmapFromData ((Display*) m_display,
+                RootWindow ((Display*) m_display, DefaultScreen ((Display*) m_display)),
+                cdiag_bits, cdiag_width, cdiag_height);
+            myStipple = cdiag;
+            break;
+        }
+        XSetStipple ((Display*) m_display, (GC) m_gc, myStipple);
+
+        if (m_window && m_window->GetBackingPixmap())
+            XSetStipple ((Display*) m_display,(GC) m_gcBacking, myStipple);
+    }
+    // X can forget the stipple value when resizing a window (apparently)
+    // so always set the stipple.
+    else if (m_currentFill != wxSOLID && m_currentFill != wxTRANSPARENT &&
+             m_currentStipple.Ok()) // && m_currentStipple != oldStipple)
+    {
+        if (m_currentStipple.GetDepth() == 1)
+        {
+            XSetStipple ((Display*) m_display, (GC) m_gc,
+                         (Pixmap) m_currentStipple.GetDrawable());
+        if (m_window && m_window->GetBackingPixmap())
+                XSetStipple ((Display*) m_display,(GC) m_gcBacking,
+                             (Pixmap) m_currentStipple.GetDrawable());
+        }
+        else
+        {
+            XSetTile ((Display*) m_display, (GC) m_gc,
+                      (Pixmap) m_currentStipple.GetDrawable());
+            if (m_window && m_window->GetBackingPixmap())
+                XSetTile ((Display*) m_display,(GC) m_gcBacking,
+                          (Pixmap) m_currentStipple.GetDrawable());
+        }
+    }
+
+    // must test m_logicalFunction, because it involves background!
+    if (!sameColour || !GET_OPTIMIZATION || m_logicalFunction == wxXOR)
+    {
+        WXPixel pixel = CalculatePixel(m_brush.GetColour(), m_currentColour, true);
+
+        if (pixel > -1)
+            SetForegroundPixelWithLogicalFunction(pixel);
+    }
+    else
+        m_brush.GetColour().SetPixel(oldBrushColour.GetPixel());
+}
 
 void wxWindowDC::SetBackground( const wxBrush &brush )
 {
-  if (!Ok()) return;
-  
-  if (m_backgroundBrush == brush) return;
-  
-  m_backgroundBrush = brush;
-  
-  if (!m_backgroundBrush.Ok()) return;
-  
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    m_backgroundBrush = brush;
+
+    if (!m_backgroundBrush.Ok())
+        return;
+
+    m_backgroundPixel = m_backgroundBrush.GetColour().AllocColour(m_display);
+
+    // Necessary for ::DrawIcon, which use fg/bg pixel or the GC.
+    // And Blit,... (Any fct that use XCopyPlane, in fact.)
+    XSetBackground ((Display*) m_display, (GC) m_gc, m_backgroundPixel);
+    if (m_window && m_window->GetBackingPixmap())
+        XSetBackground ((Display*) m_display,(GC) m_gcBacking,
+                        m_backgroundPixel);
+}
 
 void wxWindowDC::SetLogicalFunction( int function )
 {
-  if (m_logicalFunction == function) return;
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    int x_function;
+
+    /* MATTHEW: [9] */
+    if (m_logicalFunction == function)
+        return;
+
+    switch (function)
+    {
+    case wxCLEAR:
+        x_function = GXclear;
+        break;
+    case wxXOR:
+        x_function = GXxor;
+        break;
+    case wxINVERT:
+        x_function = GXinvert;
+        break;
+    case wxOR_REVERSE:
+        x_function = GXorReverse;
+        break;
+    case wxAND_REVERSE:
+        x_function = GXandReverse;
+        break;
+    case wxAND:
+        x_function = GXand;
+        break;
+    case wxOR:
+        x_function = GXor;
+        break;
+    case wxAND_INVERT:
+        x_function = GXandInverted;
+        break;
+    case wxNO_OP:
+        x_function = GXnoop;
+        break;
+    case wxNOR:
+        x_function = GXnor;
+        break;
+    case wxEQUIV:
+        x_function = GXequiv;
+        break;
+    case wxSRC_INVERT:
+        x_function = GXcopyInverted;
+        break;
+    case wxOR_INVERT:
+        x_function = GXorInverted;
+        break;
+    case wxNAND:
+        x_function = GXnand;
+        break;
+    case wxSET:
+        x_function = GXset;
+        break;
+    case wxCOPY:
+    default:
+        x_function = GXcopy;
+        break;
+    }
+
+    XSetFunction((Display*) m_display, (GC) m_gc, x_function);
+    if (m_window && m_window->GetBackingPixmap())
+        XSetFunction((Display*) m_display, (GC) m_gcBacking, x_function);
+
+    if ((m_logicalFunction == wxXOR) != (function == wxXOR))
+        /* MATTHEW: [9] Need to redo pen simply */
+        m_autoSetting |= 0x2;
+
+    m_logicalFunction = function;
+
+}
 
 void wxWindowDC::SetTextForeground( const wxColour &col )
 {
-  if (!Ok()) return;
-  
-  if (m_textForegroundColour == col) return;
-  
-  m_textForegroundColour = col;
-  if (!m_textForegroundColour.Ok()) return;
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    m_textForegroundColour = col;
+}
 
 void wxWindowDC::SetTextBackground( const wxColour &col )
 {
-  if (!Ok()) return;
-  
-  if (m_textBackgroundColour == col) return;
-  
-  m_textBackgroundColour = col;
-  if (!m_textBackgroundColour.Ok()) return;
-};
+    wxCHECK_RET( Ok(), "invalid dc" );
+
+    m_textBackgroundColour = col;
+}
 
 void wxWindowDC::SetBackgroundMode( int mode )
 {
-  m_backgroundMode = mode;
-
-  if (m_brush.GetStyle() != wxSOLID && m_brush.GetStyle() != wxTRANSPARENT)
-  {
-  }
-};
+    m_backgroundMode = mode;
+}
 
-void wxWindowDC::SetPalette( const wxPalette& WXUNUSED(palette) )
+void wxWindowDC::SetPalette( const wxPalette& palette )
 {
-};
+    if (m_window)
+    {
+        if (palette.Ok())
+            /* Use GetXColormap */
+            XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
+            (Colormap) palette.GetXColormap());
+        else
+            /* Use wxGetMainColormap */
+            XSetWindowColormap ((Display*) m_display, (Window) m_window->GetXWindow(),
+            (Colormap) wxTheApp->GetMainColormap(m_display));
+    }
+}
 
-void wxWindowDC::SetClippingRegion( long x, long y, long width, long height )
+static void wxCopyRegion( WXRegion src, WXRegion& dst )
 {
-  wxDC::SetClippingRegion( x, y, width, height );
-  
-};
+    if( !dst )
+        dst = XCreateRegion();
+    XUnionRegion( (Region)src, (Region)src, (Region)dst );
+}
 
-void wxWindowDC::DestroyClippingRegion(void)
+// Helper function; userRegion is the region set by calling SetClippingRegion
+void wxWindowDC::SetDCClipping( WXRegion userRegion )
 {
-  wxDC::DestroyClippingRegion();
-  
-};
+    bool hasUpdateRegion = m_window && m_window->GetUpdateRegion().Ok();
+    // this means that we should start the clip region from scratch,
+    // or from the update region, if any
+    if( !userRegion )
+    {
+        if( m_clipRegion )
+            XDestroyRegion( (Region)m_clipRegion );
+        m_clipRegion = (WXRegion)NULL;
+
+        if( hasUpdateRegion )
+            wxCopyRegion( m_window->GetUpdateRegion().GetX11Region(),
+                          m_clipRegion );
+    }
+    // intersect the user region, if any, with the
+    // exisiting clip region
+    else // if( userRegion )
+    {
+        if( !m_clipRegion )
+            wxCopyRegion( userRegion, m_clipRegion );
+        else
+            XIntersectRegion( (Region)m_clipRegion,
+                              (Region)userRegion, (Region)m_clipRegion );
+    }
 
-// ----------------------------------- spline code ----------------------------------------
+    if( m_clipRegion )
+        XSetRegion( (Display*)m_display, (GC)m_gc, (Region)m_clipRegion );
+    else
+        XSetClipMask( (Display*)m_display, (GC)m_gc, None );
+}
 
-void wx_quadratic_spline(double a1, double b1, double a2, double b2,
-                         double a3, double b3, double a4, double b4);
-void wx_clear_stack(void);
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
-        double *y3, double *x4, double *y4);
-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
-          double x4, double y4);
-static bool wx_spline_add_point(double x, double y);
-static void wx_spline_draw_point_array(wxDC *dc);
+void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y,
+                                      wxCoord width, wxCoord height )
+{
+    wxDC::DoSetClippingRegion( x, y, width, height );
 
-wxList wx_spline_point_list;
+    wxRegion temp(x, y, width, height);
 
-#define		half(z1, z2)	((z1+z2)/2.0)
-#define		THRESHOLD	5
+    SetDCClipping(temp.GetX11Region());
 
-/* iterative version */
+    // Needs to work differently for Pixmap: without this,
+    // there's a nasty (Display*) m_display bug. 8/12/94
+    if (m_window && m_window->GetBackingPixmap())
+    {
+        XRectangle rects[1];
+        rects[0].x = (short)XLOG2DEV_2(x);
+        rects[0].y = (short)YLOG2DEV_2(y);
+        rects[0].width = (unsigned short)XLOG2DEVREL(width);
+        rects[0].height = (unsigned short)YLOG2DEVREL(height);
+        XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
+                           0, 0, rects, 1, Unsorted);
+    }
+}
 
-void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
-                 double b4)
+void wxWindowDC::DoSetClippingRegionAsRegion( const wxRegion& region )
 {
-    register double  xmid, ymid;
-    double           x1, y1, x2, y2, x3, y3, x4, y4;
+    wxRect box = region.GetBox();
+
+    wxDC::DoSetClippingRegion( box.x, box.y, box.width, box.height );
 
-    wx_clear_stack();
-    wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
+    SetDCClipping(region.GetX11Region());
 
-    while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
-        xmid = (double)half(x2, x3);
-        ymid = (double)half(y2, y3);
-	if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
-	    fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
-            wx_spline_add_point( x1, y1 );
-            wx_spline_add_point( xmid, ymid );
-	} else {
-            wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
-                 (double)half(x3, x4), (double)half(y3, y4), x4, y4);
-            wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
-                 (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
-	}
+    // Needs to work differently for Pixmap: without this,
+    // there's a nasty (Display*) m_display bug. 8/12/94
+    if (m_window && m_window->GetBackingPixmap())
+    {
+        XRectangle rects[1];
+        rects[0].x = (short)XLOG2DEV_2(box.x);
+        rects[0].y = (short)YLOG2DEV_2(box.y);
+        rects[0].width = (unsigned short)XLOG2DEVREL(box.width);
+        rects[0].height = (unsigned short)YLOG2DEVREL(box.height);
+        XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
+                           0, 0, rects, 1, Unsorted);
     }
 }
 
-/* utilities used by spline drawing routines */
 
-typedef struct wx_spline_stack_struct {
-    double           x1, y1, x2, y2, x3, y3, x4, y4;
-} Stack;
+void wxWindowDC::DestroyClippingRegion()
+{
+    wxDC::DestroyClippingRegion();
 
-#define         SPLINE_STACK_DEPTH             20
-static Stack    wx_spline_stack[SPLINE_STACK_DEPTH];
-static Stack   *wx_stack_top;
-static int      wx_stack_count;
+    SetDCClipping(NULL);
 
-void wx_clear_stack(void)
-{
-    wx_stack_top = wx_spline_stack;
-    wx_stack_count = 0;
+    if (m_window && m_window->GetBackingPixmap())
+        XSetClipMask ((Display*) m_display, (GC) m_gcBacking, None);
 }
 
-void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
+// Resolution in pixels per logical inch
+wxSize wxWindowDC::GetPPI() const
 {
-    wx_stack_top->x1 = x1;
-    wx_stack_top->y1 = y1;
-    wx_stack_top->x2 = x2;
-    wx_stack_top->y2 = y2;
-    wx_stack_top->x3 = x3;
-    wx_stack_top->y3 = y3;
-    wx_stack_top->x4 = x4;
-    wx_stack_top->y4 = y4;
-    wx_stack_top++;
-    wx_stack_count++;
+    // TODO
+    return wxSize(100, 100);
 }
 
-int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
-                  double *x3, double *y3, double *x4, double *y4)
+int wxWindowDC::GetDepth() const
 {
-    if (wx_stack_count == 0)
-	return (0);
-    wx_stack_top--;
-    wx_stack_count--;
-    *x1 = wx_stack_top->x1;
-    *y1 = wx_stack_top->y1;
-    *x2 = wx_stack_top->x2;
-    *y2 = wx_stack_top->y2;
-    *x3 = wx_stack_top->x3;
-    *y3 = wx_stack_top->y3;
-    *x4 = wx_stack_top->x4;
-    *y4 = wx_stack_top->y4;
-    return (1);
+    // TODO
+    return 24;
 }
 
-static bool wx_spline_add_point(double x, double y)
+
+
+
+// ----------------------------------------------------------------------------
+// wxPaintDC
+// ----------------------------------------------------------------------------
+
+wxPaintDC::wxPaintDC(wxWindow* win) : wxWindowDC(win)
 {
-  wxPoint *point = new wxPoint ;
-  point->x = (int) x;
-  point->y = (int) y;
-  wx_spline_point_list.Append((wxObject*)point);
-  return TRUE;
+    // Set the clipping region.to the update region
+    SetDCClipping((WXRegion)NULL);
 }
 
-static void wx_spline_draw_point_array(wxDC *dc)
+wxPaintDC::~wxPaintDC()
 {
-  dc->DrawLines(&wx_spline_point_list, 0, 0 );
-  wxNode *node = wx_spline_point_list.First();
-  while (node)
-  {
-    wxPoint *point = (wxPoint *)node->Data();
-    delete point;
-    delete node;
-    node = wx_spline_point_list.First();
-  }
+    if (m_window)
+        m_window->ClearUpdateRegion();
+    SetDCClipping((WXRegion)NULL);
 }
 
-void wxWindowDC::DrawOpenSpline( wxList *points )
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+/*
+   Used when copying between drawables on different (Display*) m_displays. Not
+   very fast, but better than giving up.
+*/
+
+static void XCopyRemote(Display *src_display, Display *dest_display,
+                        Drawable src, Drawable dest,
+                        GC destgc,
+                        int srcx, int srcy,
+                        unsigned int w, unsigned int h,
+                        int destx, int desty,
+                        bool more, XImage **cache)
 {
-    wxPoint *p;
-    double           cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
-    double           x1, y1, x2, y2;
-
-    wxNode *node = points->First();
-    p = (wxPoint *)node->Data();
-
-    x1 = p->x;
-    y1 = p->y;
-
-    node = node->Next();
-    p = (wxPoint *)node->Data();
-
-    x2 = p->x;
-    y2 = p->y;
-    cx1 = (double)((x1 + x2) / 2);
-    cy1 = (double)((y1 + y2) / 2);
-    cx2 = (double)((cx1 + x2) / 2);
-    cy2 = (double)((cy1 + y2) / 2);
-
-    wx_spline_add_point(x1, y1);
+    XImage *image, *destimage;
+    Colormap destcm, srccm;
+    static const int CACHE_SIZE = 256;
+
+    unsigned int i, j;
+    Pixel cachesrc[CACHE_SIZE], cachedest[CACHE_SIZE];
+    int k, cache_pos, all_cache;
+
+    if (!cache || !*cache)
+        image = XGetImage(src_display, src, srcx, srcy, w, h, AllPlanes, ZPixmap);
+    else
+        image = *cache;
+
+    destimage = XGetImage(dest_display, dest, destx, desty, w, h, AllPlanes, ZPixmap);
+
+    srccm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) src_display);
+    destcm = (Colormap) wxTheApp->GetMainColormap((WXDisplay*) dest_display);
+
+    cache_pos = 0;
+    all_cache = False;
+
+    for (i = 0; i < w; i++)
+        for (j = 0; j < h; j++) {
+            Pixel pixel;
+            XColor xcol;
+
+            pixel = XGetPixel(image, i, j);
+            for (k = cache_pos; k--; )
+                if (cachesrc[k] == pixel) {
+                    pixel = cachedest[k];
+                    goto install;
+                }
+                if (all_cache)
+                    for (k = CACHE_SIZE; k-- > cache_pos; )
+                        if (cachesrc[k] == pixel) {
+                            pixel = cachedest[k];
+                            goto install;
+                        }
+
+                        cachesrc[cache_pos] = xcol.pixel = pixel;
+                        XQueryColor(src_display, srccm, &xcol);
+                        if (!XAllocColor(dest_display, destcm, &xcol))
+                            xcol.pixel = 0;
+                        cachedest[cache_pos] = pixel = xcol.pixel;
+
+                        if (++cache_pos >= CACHE_SIZE) {
+                            cache_pos = 0;
+                            all_cache = true;
+                        }
+
+install:
+                        XPutPixel(destimage, i, j, pixel);
+        }
+
+        XPutImage(dest_display, dest, destgc, destimage, 0, 0, destx, desty, w, h);
+        XDestroyImage(destimage);
+
+        if (more)
+            *cache = image;
+        else
+            XDestroyImage(image);
+}
 
-    while ((node = node->Next()) != NULL)
-    {
-        p = (wxPoint *)node->Data();
-	x1 = x2;
-	y1 = y2;
-	x2 = p->x;
-	y2 = p->y;
-        cx4 = (double)(x1 + x2) / 2;
-        cy4 = (double)(y1 + y2) / 2;
-        cx3 = (double)(x1 + cx4) / 2;
-        cy3 = (double)(y1 + cy4) / 2;
+#if 0
 
-        wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
+/* Helper function for 16-bit fonts */
+static int str16len(const char *s)
+{
+    int count = 0;
 
-	cx1 = cx4;
-	cy1 = cy4;
-        cx2 = (double)(cx1 + x2) / 2;
-        cy2 = (double)(cy1 + y2) / 2;
+    while (s[0] && s[1]) {
+        count++;
+        s += 2;
     }
 
-    wx_spline_add_point( cx1, cy1 );
-    wx_spline_add_point( x2, y2 );
+    return count;
+}
 
-    wx_spline_draw_point_array( this );
-};
+#endif // 0