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diff --git a/pcbnew/protos.h b/pcbnew/protos.h
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+/*
+ * This program source code file is part of KiCad, a free EDA CAD application.
+ *
+ * Copyright (C) 2007 Jean-Pierre Charras, jp.charras@wanadoo.fr
+ * Copyright (C) 1992-2012 KiCad Developers, see AUTHORS.txt for contributors.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you may find one here:
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * or you may search the http://www.gnu.org website for the version 2 license,
+ * or you may write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+/**
+ * @file pcbnew/protos.h
+ */
+
+#ifndef PROTO_H
+#define PROTO_H
+#include <gr_basic.h>
+
+class wxDC;
+class wxPoint;
+class EDA_DRAW_PANEL;
+class BOARD_ITEM;
+class TRACK;
+class MODULE;
+
+
+/***************/
+/* TRPISTE.CPP */
+/***************/
+
+/**
+ * Function DrawTraces
+ * Draws n consecutive track segments in list.
+ * Useful to show a track when it is a chain of segments
+ * (for instance when creating a new track)
+ *
+ * @param panel A EDA_DRAW_ITEM pointer to the canvas.
+ * @param DC A wxDC pointer of the device context used for drawing.
+ * @param aStartTrace First segment
+ * @param nbsegment Number of segments in list
+ * @param mode_color Drawing mode (GRXOR, GROR ..)
+ */
+
+void DrawTraces( EDA_DRAW_PANEL* panel,
+                 wxDC*           DC,
+                 TRACK*          aStartTrace,
+                 int             nbsegment,
+                 GR_DRAWMODE     mode_color );
+
+void ShowNewTrackWhenMovingCursor( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aPosition,
+                                   bool aErase );
+
+/**
+ * Determine coordinate for a segment direction of 0, 90, or 45 degrees
+ * depending on it's position from the origin (ox, oy) and \a aPosiition.
+ */
+void CalculateSegmentEndPoint( const wxPoint& aPosition, int ox, int oy, int* fx, int* fy );
+
+/**
+ * Finds the projection of a grid point on a track. This is the point
+ * from where we want to draw new orthogonal tracks when starting on a track.
+ */
+bool Project( wxPoint* res, wxPoint on_grid, const TRACK* track );
+TRACK* LocateIntrusion( TRACK* listStart, TRACK* aTrack, LAYER_NUM aLayer, const wxPoint& aRef );
+
+
+
+#endif  /* #define PROTO_H */