forked from mia/Aegisub
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
//----------------------------------------------------------------------------
|
|
// Anti-Grain Geometry (AGG) - Version 2.5
|
|
// A high quality rendering engine for C++
|
|
// Copyright (C) 2002-2006 Maxim Shemanarev
|
|
// Contact: mcseem@antigrain.com
|
|
// mcseemagg@yahoo.com
|
|
// http://antigrain.com
|
|
//
|
|
// AGG 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.
|
|
//
|
|
// AGG 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 AGG; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
// MA 02110-1301, USA.
|
|
//----------------------------------------------------------------------------
|
|
|
|
#ifndef AGG_vcgen_bcspline_INCLUDED
|
|
#define AGG_vcgen_bcspline_INCLUDED
|
|
|
|
#include "agg_basics.h"
|
|
#include "agg_array.h"
|
|
#include "agg_bcspline.h"
|
|
|
|
|
|
namespace agg
|
|
{
|
|
|
|
//==========================================================vcgen_bcspline
|
|
class vcgen_bcspline
|
|
{
|
|
enum status_e
|
|
{
|
|
initial,
|
|
ready,
|
|
polygon,
|
|
end_poly,
|
|
stop
|
|
};
|
|
|
|
public:
|
|
typedef pod_bvector<point_d, 6> vertex_storage;
|
|
|
|
vcgen_bcspline();
|
|
|
|
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 path_id);
|
|
unsigned vertex(double* x, double* y);
|
|
|
|
private:
|
|
vcgen_bcspline(const vcgen_bcspline&);
|
|
const vcgen_bcspline& operator = (const vcgen_bcspline&);
|
|
|
|
vertex_storage m_src_vertices;
|
|
bcspline m_spline_x;
|
|
bcspline 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
|
|
|