+#ifdef __WXMSW__
+#define wxPy_premultiply(p, a) ((p) * (a) / 0xff)
+#else
+#define wxPy_premultiply(p, a) (p)
+#endif
+
+void SurfaceImpl::AlphaRectangle(PRectangle rc, int cornerSize,
+ ColourAllocated fill, int alphaFill,
+ ColourAllocated outline, int alphaOutline,
+ int /*flags*/) {
+#ifdef wxHAVE_RAW_BITMAP
+ int x, y;
+ wxRect r = wxRectFromPRectangle(rc);
+ wxBitmap bmp(r.width, r.height, 32);
+ wxAlphaPixelData pixData(bmp);
+ pixData.UseAlpha();
+
+ // Set the fill pixels
+ ColourDesired cdf(fill.AsLong());
+ int red = cdf.GetRed();
+ int green = cdf.GetGreen();
+ int blue = cdf.GetBlue();
+
+ wxAlphaPixelData::Iterator p(pixData);
+ for (y=0; y<r.height; y++) {
+ p.MoveTo(pixData, 0, y);
+ for (x=0; x<r.width; x++) {
+ p.Red() = wxPy_premultiply(red, alphaFill);
+ p.Green() = wxPy_premultiply(green, alphaFill);
+ p.Blue() = wxPy_premultiply(blue, alphaFill);
+ p.Alpha() = alphaFill;
+ ++p;
+ }
+ }
+
+ // Set the outline pixels
+ ColourDesired cdo(outline.AsLong());
+ red = cdo.GetRed();
+ green = cdo.GetGreen();
+ blue = cdo.GetBlue();
+ for (x=0; x<r.width; x++) {
+ p.MoveTo(pixData, x, 0);
+ p.Red() = wxPy_premultiply(red, alphaOutline);
+ p.Green() = wxPy_premultiply(green, alphaOutline);
+ p.Blue() = wxPy_premultiply(blue, alphaOutline);
+ p.Alpha() = alphaOutline;
+ p.MoveTo(pixData, x, r.height-1);
+ p.Red() = wxPy_premultiply(red, alphaOutline);
+ p.Green() = wxPy_premultiply(green, alphaOutline);
+ p.Blue() = wxPy_premultiply(blue, alphaOutline);
+ p.Alpha() = alphaOutline;
+ }
+
+ for (y=0; y<r.height; y++) {
+ p.MoveTo(pixData, 0, y);
+ p.Red() = wxPy_premultiply(red, alphaOutline);
+ p.Green() = wxPy_premultiply(green, alphaOutline);
+ p.Blue() = wxPy_premultiply(blue, alphaOutline);
+ p.Alpha() = alphaOutline;
+ p.MoveTo(pixData, r.width-1, y);
+ p.Red() = wxPy_premultiply(red, alphaOutline);
+ p.Green() = wxPy_premultiply(green, alphaOutline);
+ p.Blue() = wxPy_premultiply(blue, alphaOutline);
+ p.Alpha() = alphaOutline;
+ }
+
+ // Draw the bitmap
+ hdc->DrawBitmap(bmp, r.x, r.y, true);
+
+#else
+ RectangleDraw(rc, outline, fill);
+#endif
+}
+