From f4ce2b5c214cce406dbd7a73dc7f35ae409546ad Mon Sep 17 00:00:00 2001 From: Tobias Weimer Date: Sun, 12 Jul 2015 14:10:16 +0000 Subject: Clist NG: Commit of CList NG by silvercircle from https://github.com/silvercircle/miranda-ng This is based on clist_nicer and Anti-Grain Geometry: http://www.antigrain.com/ This is the first version that actually compiles. Do NOT use it in production environment! git-svn-id: http://svn.miranda-ng.org/main/trunk@14543 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c --- plugins/Clist_ng/AGG/src/agg_vcgen_stroke.cpp | 219 ++++++++++++++++++++++++++ 1 file changed, 219 insertions(+) create mode 100644 plugins/Clist_ng/AGG/src/agg_vcgen_stroke.cpp (limited to 'plugins/Clist_ng/AGG/src/agg_vcgen_stroke.cpp') diff --git a/plugins/Clist_ng/AGG/src/agg_vcgen_stroke.cpp b/plugins/Clist_ng/AGG/src/agg_vcgen_stroke.cpp new file mode 100644 index 0000000000..b36927bf31 --- /dev/null +++ b/plugins/Clist_ng/AGG/src/agg_vcgen_stroke.cpp @@ -0,0 +1,219 @@ +//---------------------------------------------------------------------------- +// 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. +//---------------------------------------------------------------------------- + +#include +#include "agg_vcgen_stroke.h" +#include "agg_shorten_path.h" + +namespace agg +{ + + //------------------------------------------------------------------------ + vcgen_stroke::vcgen_stroke() : + m_stroker(), + m_src_vertices(), + m_out_vertices(), + m_shorten(0.0), + m_closed(0), + m_status(initial), + m_src_vertex(0), + m_out_vertex(0) + { + } + + //------------------------------------------------------------------------ + void vcgen_stroke::remove_all() + { + m_src_vertices.remove_all(); + m_closed = 0; + m_status = initial; + } + + + //------------------------------------------------------------------------ + void vcgen_stroke::add_vertex(double x, double y, unsigned cmd) + { + m_status = initial; + if(is_move_to(cmd)) + { + m_src_vertices.modify_last(vertex_dist(x, y)); + } + else + { + if(is_vertex(cmd)) + { + m_src_vertices.add(vertex_dist(x, y)); + } + else + { + m_closed = get_close_flag(cmd); + } + } + } + + //------------------------------------------------------------------------ + void vcgen_stroke::rewind(unsigned) + { + if(m_status == initial) + { + m_src_vertices.close(m_closed != 0); + shorten_path(m_src_vertices, m_shorten, m_closed); + if(m_src_vertices.size() < 3) m_closed = 0; + } + m_status = ready; + m_src_vertex = 0; + m_out_vertex = 0; + } + + + //------------------------------------------------------------------------ + unsigned vcgen_stroke::vertex(double* x, double* y) + { + unsigned cmd = path_cmd_line_to; + while(!is_stop(cmd)) + { + switch(m_status) + { + case initial: + rewind(0); + + case ready: + if(m_src_vertices.size() < 2 + unsigned(m_closed != 0)) + { + cmd = path_cmd_stop; + break; + } + m_status = m_closed ? outline1 : cap1; + cmd = path_cmd_move_to; + m_src_vertex = 0; + m_out_vertex = 0; + break; + + case cap1: + m_stroker.calc_cap(m_out_vertices, + m_src_vertices[0], + m_src_vertices[1], + m_src_vertices[0].dist); + m_src_vertex = 1; + m_prev_status = outline1; + m_status = out_vertices; + m_out_vertex = 0; + break; + + case cap2: + m_stroker.calc_cap(m_out_vertices, + m_src_vertices[m_src_vertices.size() - 1], + m_src_vertices[m_src_vertices.size() - 2], + m_src_vertices[m_src_vertices.size() - 2].dist); + m_prev_status = outline2; + m_status = out_vertices; + m_out_vertex = 0; + break; + + case outline1: + if(m_closed) + { + if(m_src_vertex >= m_src_vertices.size()) + { + m_prev_status = close_first; + m_status = end_poly1; + break; + } + } + else + { + if(m_src_vertex >= m_src_vertices.size() - 1) + { + m_status = cap2; + break; + } + } + m_stroker.calc_join(m_out_vertices, + m_src_vertices.prev(m_src_vertex), + m_src_vertices.curr(m_src_vertex), + m_src_vertices.next(m_src_vertex), + m_src_vertices.prev(m_src_vertex).dist, + m_src_vertices.curr(m_src_vertex).dist); + ++m_src_vertex; + m_prev_status = m_status; + m_status = out_vertices; + m_out_vertex = 0; + break; + + case close_first: + m_status = outline2; + cmd = path_cmd_move_to; + + case outline2: + if(m_src_vertex <= unsigned(m_closed == 0)) + { + m_status = end_poly2; + m_prev_status = stop; + break; + } + + --m_src_vertex; + m_stroker.calc_join(m_out_vertices, + m_src_vertices.next(m_src_vertex), + m_src_vertices.curr(m_src_vertex), + m_src_vertices.prev(m_src_vertex), + m_src_vertices.curr(m_src_vertex).dist, + m_src_vertices.prev(m_src_vertex).dist); + + m_prev_status = m_status; + m_status = out_vertices; + m_out_vertex = 0; + break; + + case out_vertices: + if(m_out_vertex >= m_out_vertices.size()) + { + m_status = m_prev_status; + } + else + { + const point_d& c = m_out_vertices[m_out_vertex++]; + *x = c.x; + *y = c.y; + return cmd; + } + break; + + case end_poly1: + m_status = m_prev_status; + return path_cmd_end_poly | path_flags_close | path_flags_ccw; + + case end_poly2: + m_status = m_prev_status; + return path_cmd_end_poly | path_flags_close | path_flags_cw; + + case stop: + cmd = path_cmd_stop; + break; + } + } + return cmd; + } + +} -- cgit v1.2.3