//---------------------------------------------------------------------------- // 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: 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_storage; typedef pod_deque 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 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