restore generic DrawEllipticArc() used by CE which was lost during the great wxDC refactoring somehow

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@51963 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dc.h

@@ -500,6 +500,54 @@ protected:
         m_clipX1 = m_clipX2 = m_clipY1 = m_clipY2 = 0;
     }
 
+#ifdef __WXWINCE__
+    //! Generic method to draw ellipses, circles and arcs with current pen and brush.
+    /*! \param x Upper left corner of bounding box.
+     *  \param y Upper left corner of bounding box.
+     *  \param w Width of bounding box.
+     *  \param h Height of bounding box.
+     *  \param sa Starting angle of arc
+     *            (counterclockwise, start at 3 o'clock, 360 is full circle).
+     *  \param ea Ending angle of arc.
+     *  \param angle Rotation angle, the Arc will be rotated after
+     *               calculating begin and end.
+     */
+    void DrawEllipticArcRot( wxCoord x, wxCoord y,
+                             wxCoord width, wxCoord height,
+                             double sa = 0, double ea = 0, double angle = 0 )
+    { DoDrawEllipticArcRot( x, y, width, height, sa, ea, angle ); }
+
+    void DrawEllipticArcRot( const wxPoint& pt,
+                             const wxSize& sz,
+                             double sa = 0, double ea = 0, double angle = 0 )
+    { DoDrawEllipticArcRot( pt.x, pt.y, sz.x, sz.y, sa, ea, angle ); }
+
+    void DrawEllipticArcRot( const wxRect& rect,
+                             double sa = 0, double ea = 0, double angle = 0 )
+    { DoDrawEllipticArcRot( rect.x, rect.y, rect.width, rect.height, sa, ea, angle ); }
+
+    virtual void DoDrawEllipticArcRot( wxCoord x, wxCoord y,
+                                       wxCoord w, wxCoord h,
+                                       double sa = 0, double ea = 0, double angle = 0 );
+
+    //! Rotates points around center.
+    /*! This is a quite straight method, it calculates in pixels
+     *  and so it produces rounding errors.
+     *  \param points The points inside will be rotated.
+     *  \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
+     *  \param center Center of rotation.
+     */
+    void Rotate( wxPointList* points, double angle, wxPoint center = wxPoint(0,0) );
+
+    // used by DrawEllipticArcRot
+    // Careful: wxList gets filled with points you have to delete later.
+    void CalculateEllipticPoints( wxPointList* points,
+                                  wxCoord xStart, wxCoord yStart,
+                                  wxCoord w, wxCoord h,
+                                  double sa, double ea );
+#endif // __WXWINCE__
+
+
     // window on which the DC draws or NULL
     wxWindow   *m_window;