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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
//----------------------------------------------------------------------------
#ifndef AGG_VCGEN_STROKE_INCLUDED
#define AGG_VCGEN_STROKE_INCLUDED
#include "agg_math_stroke.h"
#include "agg_vertex_iterator.h"
namespace agg
{
//============================================================vcgen_stroke
//
// See Implementation agg_vcgen_stroke.cpp
// Stroke generator
//
//------------------------------------------------------------------------
class vcgen_stroke
{
enum status_e
{
initial,
ready,
cap1,
cap2,
outline1,
close_first,
outline2,
out_vertices,
end_poly1,
end_poly2,
stop
};
public:
typedef vertex_sequence<vertex_dist, 6> vertex_storage;
typedef pod_deque<point_type, 6> coord_storage;
vcgen_stroke();
void line_cap(line_cap_e lc) { m_line_cap = lc; }
void line_join(line_join_e lj) { m_line_join = lj; }
void inner_line_join(line_join_e lj) { m_inner_line_join = lj; }
line_cap_e line_cap() const { return m_line_cap; }
line_join_e line_join() const { return m_line_join; }
line_join_e inner_line_join() const { return m_inner_line_join; }
void width(double w) { m_width = w * 0.5; }
void miter_limit(double ml) { m_miter_limit = ml; }
void miter_limit_theta(double t);
void inner_miter_limit(double ml) { m_inner_miter_limit = ml; }
void approximation_scale(double as) { m_approx_scale = as; }
double width() const { return m_width * 2.0; }
double miter_limit() const { return m_miter_limit; }
double inner_miter_limit() const { return m_inner_miter_limit; }
double approximation_scale() const { return m_approx_scale; }
void shorten(double s) { m_shorten = s; }
double shorten() const { return m_shorten; }
// 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);
typedef vcgen_stroke source_type;
typedef vertex_iterator<source_type> iterator;
iterator begin(unsigned id) { return iterator(*this, id); }
iterator end() { return iterator(path_cmd_stop); }
private:
vcgen_stroke(const vcgen_stroke&);
const vcgen_stroke& operator = (const vcgen_stroke&);
vertex_storage m_src_vertices;
coord_storage m_out_vertices;
double m_width;
double m_miter_limit;
double m_inner_miter_limit;
double m_approx_scale;
double m_shorten;
line_cap_e m_line_cap;
line_join_e m_line_join;
line_join_e m_inner_line_join;
unsigned m_closed;
status_e m_status;
status_e m_prev_status;
unsigned m_src_vertex;
unsigned m_out_vertex;
};
}
#endif
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