Initial checkin

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9933 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-11-12 02:02:58 +00:00
parent 5344cdf47b
commit 39241fe228
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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.2
+// Copyright (C) 2002-2004 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: [email protected]
+//          [email protected]
+//          http://www.antigrain.com
+//----------------------------------------------------------------------------
+
+#ifndef AGG_VCGEN_BSPLINE_INCLUDED
+#define AGG_VCGEN_BSPLINE_INCLUDED
+
+#include "agg_basics.h"
+#include "agg_array.h"
+#include "agg_bspline.h"
+
+
+namespace agg
+{
+
+    //==========================================================vcgen_bspline
+    class vcgen_bspline
+    {
+        enum status_e
+        {
+            initial,
+            ready,
+            polygon,
+            end_poly,
+            stop
+        };
+
+    public:
+        typedef pod_deque<point_type, 6> vertex_storage;
+
+        vcgen_bspline();
+
+        void interpolation_step(double v) { m_interpolation_step = v; }
+        double interpolation_step() const { return m_interpolation_step; }
+
+        // Vertex Generator Interface
+        void remove_all();
+        void add_vertex(double x, double y, unsigned cmd);
+
+        // Vertex Source Interface
+        void     rewind(unsigned id);
+        unsigned vertex(double* x, double* y);
+
+    private:
+        vcgen_bspline(const vcgen_bspline&);
+        const vcgen_bspline& operator = (const vcgen_bspline&);
+
+        vertex_storage m_src_vertices;
+        bspline        m_spline_x;
+        bspline        m_spline_y;
+        double         m_interpolation_step;
+        unsigned       m_closed;
+        status_e       m_status;
+        unsigned       m_src_vertex;
+        double         m_cur_abscissa;
+        double         m_max_abscissa;
+    };
+
+}
+
+
+#endif
+