use const arrays for wxDC array parameters, closes #10712

[wxWidgets.git] / include / wx / dcmirror.h

diff --git a/include/wx/dcmirror.h b/include/wx/dcmirror.h
index ee6d5c1b8a11eba7d529d2f0f7510f72114b6774..890667cc882d916fea13e13e5cade105d972d729 100644 (file)
--- a/include/wx/dcmirror.h
+++ b/include/wx/dcmirror.h
@@ -82,27 +82,23 @@ protected:
     wxCoord *GetX(wxCoord *x, wxCoord *y) const { return m_mirror ? y : x; }
     wxCoord *GetY(wxCoord *x, wxCoord *y) const { return m_mirror ? x : y; }
 
-    // exchange x and y unconditionally
-    static void Swap(wxCoord& x, wxCoord& y)
-    {
-        wxCoord t = x;
-        x = y;
-        y = t;
-    }
-
     // exchange x and y components of all points in the array if necessary
-    void Mirror(int n, wxPoint points[]) const
+    wxPoint* Mirror(int n, const wxPoint*& points) const
     {
+        wxPoint* points_alloc = NULL;
         if ( m_mirror )
         {
+            points_alloc = new wxPoint[n];
             for ( int i = 0; i < n; i++ )
             {
-                Swap(points[i].x, points[i].y);
+                points_alloc[i].x = points[i].y;
+                points_alloc[i].y = points[i].x;
             }
+            points = points_alloc;
         }
+        return points_alloc;
     }
 
-
     // wxDCBase functions
     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
                              wxFloodFillStyle style = wxFLOOD_SURFACE)
@@ -226,28 +222,28 @@ protected:
         m_dc.DoGetSizeMM(GetX(w, h), GetY(w, h));
     }
 
-    virtual void DoDrawLines(int n, wxPoint points[],
+    virtual void DoDrawLines(int n, const wxPoint points[],
                              wxCoord xoffset, wxCoord yoffset)
     {
-        Mirror(n, points);
+        wxPoint* points_alloc = Mirror(n, points);
 
         m_dc.DoDrawLines(n, points,
                          GetX(xoffset, yoffset), GetY(xoffset, yoffset));
 
-        Mirror(n, points);
+        delete[] points_alloc;
     }
 
-    virtual void DoDrawPolygon(int n, wxPoint points[],
+    virtual void DoDrawPolygon(int n, const wxPoint points[],
                                wxCoord xoffset, wxCoord yoffset,
                                wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
     {
-        Mirror(n, points);
+        wxPoint* points_alloc = Mirror(n, points);
 
         m_dc.DoDrawPolygon(n, points,
                            GetX(xoffset, yoffset), GetY(xoffset, yoffset),
                            fillStyle);
 
-        Mirror(n, points);
+        delete[] points_alloc;
     }
 
     virtual void DoSetDeviceClippingRegion(const wxRegion& WXUNUSED(region))