109 lines
3.5 KiB
C
109 lines
3.5 KiB
C
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//----------------------------------------------------------------------------
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// Anti-Grain Geometry - Version 2.4
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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//----------------------------------------------------------------------------
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://www.antigrain.com
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//----------------------------------------------------------------------------
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#ifndef AGG_VCGEN_STROKE_INCLUDED
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#define AGG_VCGEN_STROKE_INCLUDED
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#include "agg_math_stroke.h"
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namespace agg
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{
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//============================================================vcgen_stroke
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//
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// See Implementation agg_vcgen_stroke.cpp
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// Stroke generator
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//
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//------------------------------------------------------------------------
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class vcgen_stroke
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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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cap1,
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cap2,
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outline1,
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close_first,
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outline2,
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out_vertices,
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end_poly1,
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end_poly2,
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stop
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};
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public:
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typedef vertex_sequence<vertex_dist, 6> vertex_storage;
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typedef pod_bvector<point_d, 6> coord_storage;
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vcgen_stroke();
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void line_cap(line_cap_e lc) { m_line_cap = lc; }
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void line_join(line_join_e lj) { m_line_join = lj; }
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void inner_join(inner_join_e ij) { m_inner_join = ij; }
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line_cap_e line_cap() const { return m_line_cap; }
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line_join_e line_join() const { return m_line_join; }
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inner_join_e inner_join() const { return m_inner_join; }
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void width(double w) { m_width = w * 0.5; }
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void miter_limit(double ml) { m_miter_limit = ml; }
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void miter_limit_theta(double t);
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void inner_miter_limit(double ml) { m_inner_miter_limit = ml; }
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void approximation_scale(double as) { m_approx_scale = as; }
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double width() const { return m_width * 2.0; }
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double miter_limit() const { return m_miter_limit; }
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double inner_miter_limit() const { return m_inner_miter_limit; }
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double approximation_scale() const { return m_approx_scale; }
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void shorten(double s) { m_shorten = s; }
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double shorten() const { return m_shorten; }
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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_stroke(const vcgen_stroke&);
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const vcgen_stroke& operator = (const vcgen_stroke&);
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vertex_storage m_src_vertices;
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coord_storage m_out_vertices;
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double m_width;
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double m_miter_limit;
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double m_inner_miter_limit;
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double m_approx_scale;
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double m_shorten;
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line_cap_e m_line_cap;
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line_join_e m_line_join;
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inner_join_e m_inner_join;
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unsigned m_closed;
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status_e m_status;
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status_e m_prev_status;
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unsigned m_src_vertex;
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unsigned m_out_vertex;
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};
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}
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#endif
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