forked from mia/Aegisub
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
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//----------------------------------------------------------------------------
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// Anti-Grain Geometry (AGG) - Version 2.5
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// A high quality rendering engine for C++
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// Copyright (C) 2002-2006 Maxim Shemanarev
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://antigrain.com
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//
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// AGG is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// AGG is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with AGG; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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// MA 02110-1301, USA.
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//----------------------------------------------------------------------------
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#ifndef AGG_vcgen_bcspline_INCLUDED
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#define AGG_vcgen_bcspline_INCLUDED
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#include "agg_basics.h"
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#include "agg_array.h"
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#include "agg_bcspline.h"
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namespace agg
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{
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//==========================================================vcgen_bcspline
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class vcgen_bcspline
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{
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enum status_e
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{
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initial,
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ready,
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polygon,
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end_poly,
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stop
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};
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public:
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typedef pod_bvector<point_d, 6> vertex_storage;
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vcgen_bcspline();
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void interpolation_step(double v) { m_interpolation_step = v; }
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double interpolation_step() const { return m_interpolation_step; }
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// Vertex Generator Interface
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void remove_all();
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void add_vertex(double x, double y, unsigned cmd);
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// Vertex Source Interface
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void rewind(unsigned path_id);
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unsigned vertex(double* x, double* y);
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private:
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vcgen_bcspline(const vcgen_bcspline&);
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const vcgen_bcspline& operator = (const vcgen_bcspline&);
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vertex_storage m_src_vertices;
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bcspline m_spline_x;
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bcspline m_spline_y;
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double m_interpolation_step;
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unsigned m_closed;
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status_e m_status;
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unsigned m_src_vertex;
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double m_cur_abscissa;
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double m_max_abscissa;
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};
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}
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#endif
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