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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all copies.
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+// mcseemagg@yahoo.com
+// http://www.antigrain.com
+//----------------------------------------------------------------------------
+//
+// Simple arrowhead/arrowtail generator
+//
+//----------------------------------------------------------------------------
+#ifndef AGG_ARROWHEAD_INCLUDED
+#define AGG_ARROWHEAD_INCLUDED
+
+#include "agg_basics.h"
+
+namespace agg
+{
+
+ //===============================================================arrowhead
+ //
+ // See implementation agg_arrowhead.cpp
+ //
+ class arrowhead
+ {
+ public:
+ arrowhead();
+
+ void head(double d1, double d2, double d3, double d4)
+ {
+ m_head_d1 = d1;
+ m_head_d2 = d2;
+ m_head_d3 = d3;
+ m_head_d4 = d4;
+ m_head_flag = true;
+ }
+
+ void head() { m_head_flag = true; }
+ void no_head() { m_head_flag = false; }
+
+ void tail(double d1, double d2, double d3, double d4)
+ {
+ m_tail_d1 = d1;
+ m_tail_d2 = d2;
+ m_tail_d3 = d3;
+ m_tail_d4 = d4;
+ m_tail_flag = true;
+ }
+
+ void tail() { m_tail_flag = true; }
+ void no_tail() { m_tail_flag = false; }
+
+ void rewind(unsigned id);
+ unsigned vertex(double* x, double* y);
+
+ private:
+ double m_head_d1;
+ double m_head_d2;
+ double m_head_d3;
+ double m_head_d4;
+ double m_tail_d1;
+ double m_tail_d2;
+ double m_tail_d3;
+ double m_tail_d4;
+ bool m_head_flag;
+ bool m_tail_flag;
+ double m_coord[16];
+ unsigned m_cmd[8];
+ unsigned m_curr_id;
+ unsigned m_curr_coord;
+ };
+
+}
+
+#endif