+    dc.DrawLine( x, y, x, y+h-1 ); // left (outer)
+    dc.DrawLine( x, y, x+w-1, y ); // top (outer)
+
+    return DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params);
+}
+
+
+int
+wxRendererGeneric::DrawHeaderButtonContents(wxWindow *win,
+                                            wxDC& dc,
+                                            const wxRect& rect,
+                                            int flags,
+                                            wxHeaderSortIconType sortArrow,
+                                            wxHeaderButtonParams* params)
+{
+    int labelWidth = 0;
+
+    // Mark this item as selected.  For the generic version we'll just draw an
+    // underline
+    if ( flags & wxCONTROL_SELECTED )
+    {
+        // draw a line at the bottom of the header button, overlaying the
+        // native hot-tracking line (on XP)
+        const int penwidth = 3;
+        int y = rect.y + rect.height + 1 - penwidth;
+        wxColour c = (params && params->m_selectionColour.IsOk()) ?
+            params->m_selectionColour : wxColour(0x66, 0x66, 0x66);
+        wxPen pen(c, penwidth);
+        pen.SetCap(wxCAP_BUTT);
+        dc.SetPen(pen);
+        dc.DrawLine(rect.x, y, rect.x + rect.width, y);
+    }
+
+    // Draw an up or down arrow
+    int arrowSpace = 0;
+    if (sortArrow != wxHDR_SORT_ICON_NONE )
+    {
+        wxRect ar = rect;
+
+        // make a rect for the arrow
+        ar.height = 4;
+        ar.width = 8;
+        ar.y += (rect.height - ar.height)/2;
+        ar.x = ar.x + rect.width - 3*ar.width/2;
+        arrowSpace = 3*ar.width/2; // space to preserve when drawing the label
+
+        wxPoint triPt[3];
+        if ( sortArrow & wxHDR_SORT_ICON_UP )
+        {
+            triPt[0].x = ar.width / 2;
+            triPt[0].y = 0;
+            triPt[1].x = ar.width;
+            triPt[1].y = ar.height;
+            triPt[2].x = 0;
+            triPt[2].y = ar.height;
+        }
+        else
+        {
+            triPt[0].x = 0;
+            triPt[0].y = 0;
+            triPt[1].x = ar.width;
+            triPt[1].y = 0;
+            triPt[2].x = ar.width / 2;
+            triPt[2].y = ar.height;
+        }
+
+        wxColour c = (params && params->m_arrowColour.IsOk()) ?
+            params->m_arrowColour : wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW);
+
+        wxDCPenChanger setPen(dc, c);
+        wxDCBrushChanger setBrush(dc, c);
+
+        wxDCClipper clip(dc, rect);
+        dc.DrawPolygon( 3, triPt, ar.x, ar.y);
+    }
+    labelWidth += arrowSpace;
+
+    int bmpWidth = 0;
+
+    // draw the bitmap if there is one
+    if ( params && params->m_labelBitmap.IsOk() )
+    {
+        int w = params->m_labelBitmap.GetWidth();
+        int h = params->m_labelBitmap.GetHeight();
+
+        const int margin = 1; // an extra pixel on either side of the bitmap
+
+        bmpWidth = w + 2*margin;
+        labelWidth += bmpWidth;
+
+        int x = rect.x + margin;
+        const int y = rect.y + wxMax(1, (rect.height - h) / 2);
+
+        const int extraSpace = rect.width - labelWidth;
+        if ( params->m_labelText.empty() && extraSpace > 0 )
+        {
+            // use the alignment flags
+            switch (params->m_labelAlignment)
+            {
+                default:
+                case wxALIGN_LEFT:
+                    break;
+
+                case wxALIGN_CENTER:
+                    x += extraSpace/2;
+                    break;
+
+                case wxALIGN_RIGHT:
+                    x += extraSpace;
+                    break;
+            }
+        }
+
+        wxDCClipper clip(dc, rect);
+        dc.DrawBitmap(params->m_labelBitmap, x, y, true);
+    }
+
+    // Draw a label if one is given
+    if ( params && !params->m_labelText.empty() )
+    {
+        const int margin = 5;   // number of pixels to reserve on either side of the label
+        labelWidth += 2*margin;
+
+        wxFont font  = params->m_labelFont.IsOk() ?
+            params->m_labelFont : win->GetFont();
+        wxColour clr = params->m_labelColour.IsOk() ?
+            params->m_labelColour : win->GetForegroundColour();
+
+        wxString label( params->m_labelText );
+
+        dc.SetFont(font);
+        dc.SetTextForeground(clr);
+        dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
+
+        int tw, th, td;
+        dc.GetTextExtent( label, &tw, &th, &td);
+
+        int x = rect.x + bmpWidth + margin;
+        const int y = rect.y + wxMax(0, (rect.height - (th+td)) / 2);
+
+        // truncate and add an ellipsis (...) if the text is too wide.
+        const int availWidth = rect.width - labelWidth;
+#if wxUSE_CONTROLS
+        if ( tw > availWidth )
+        {
+            label = wxControl::Ellipsize(label,
+                                         dc,
+                                         wxELLIPSIZE_END,
+                                         availWidth,
+                                         wxELLIPSIZE_FLAGS_NONE);
+            tw = dc.GetTextExtent(label).x;
+        }
+        else // enough space, we can respect alignment
+#endif // wxUSE_CONTROLS
+        {
+            switch (params->m_labelAlignment)
+            {
+                default:
+                case wxALIGN_LEFT:
+                    break;
+
+                case wxALIGN_CENTER:
+                    x += (availWidth - tw)/2;
+                    break;
+
+                case wxALIGN_RIGHT:
+                    x += availWidth - tw;
+                    break;
+            }
+        }
+
+        dc.DrawText(label, x, y);
+
+        labelWidth += tw;
+    }
+
+    return labelWidth;
+}
+
+
+int wxRendererGeneric::GetHeaderButtonHeight(wxWindow *win)
+{
+    // Copied and adapted from src/generic/listctrl.cpp
+    const int HEADER_OFFSET_Y = 1;
+    const int EXTRA_HEIGHT = 4;
+
+    int w=0, h=14, d=0;
+    if (win)
+        win->GetTextExtent(wxT("Hg"), &w, &h, &d);
+
+    return h + d + 2 * HEADER_OFFSET_Y + EXTRA_HEIGHT;