//---------------------------------------------------------------------------- // 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_TRANS_DOUBLE_PATH_INCLUDED #define AGG_TRANS_DOUBLE_PATH_INCLUDED #include "agg_basics.h" #include "agg_vertex_sequence.h" namespace agg { // See also: agg_trans_double_path.cpp // //-------------------------------------------------------trans_double_path class trans_double_path { enum status_e { initial, making_path, ready }; public: typedef vertex_sequence<vertex_dist, 6> vertex_storage; trans_double_path(); //-------------------------------------------------------------------- void base_length(double v) { m_base_length = v; } double base_length() const { return m_base_length; } //-------------------------------------------------------------------- void base_height(double v) { m_base_height = v; } double base_height() const { return m_base_height; } //-------------------------------------------------------------------- void preserve_x_scale(bool f) { m_preserve_x_scale = f; } bool preserve_x_scale() const { return m_preserve_x_scale; } //-------------------------------------------------------------------- void reset(); void move_to1(double x, double y); void line_to1(double x, double y); void move_to2(double x, double y); void line_to2(double x, double y); void finalize_paths(); //-------------------------------------------------------------------- template<class VertexSource1, class VertexSource2> void add_paths(VertexSource1& vs1, VertexSource2& vs2, unsigned path1_id=0, unsigned path2_id=0) { double x; double y; unsigned cmd; vs1.rewind(path1_id); while(!is_stop(cmd = vs1.vertex(&x, &y))) { if(is_move_to(cmd)) { move_to1(x, y); } else { if(is_vertex(cmd)) { line_to1(x, y); } } } vs2.rewind(path2_id); while(!is_stop(cmd = vs2.vertex(&x, &y))) { if(is_move_to(cmd)) { move_to2(x, y); } else { if(is_vertex(cmd)) { line_to2(x, y); } } } finalize_paths(); } //-------------------------------------------------------------------- double total_length1() const; double total_length2() const; void transform(double *x, double *y) const; private: double finalize_path(vertex_storage& vertices); void transform1(const vertex_storage& vertices, double kindex, double kx, double *x, double* y) const; vertex_storage m_src_vertices1; vertex_storage m_src_vertices2; double m_base_length; double m_base_height; double m_kindex1; double m_kindex2; status_e m_status1; status_e m_status2; bool m_preserve_x_scale; }; } #endif |