summaryrefslogtreecommitdiff
path: root/agg/source/agg_vcgen_stroke.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'agg/source/agg_vcgen_stroke.cpp')
-rwxr-xr-xagg/source/agg_vcgen_stroke.cpp246
1 files changed, 0 insertions, 246 deletions
diff --git a/agg/source/agg_vcgen_stroke.cpp b/agg/source/agg_vcgen_stroke.cpp
deleted file mode 100755
index a8a4481ec25b..000000000000
--- a/agg/source/agg_vcgen_stroke.cpp
+++ /dev/null
@@ -1,246 +0,0 @@
-//----------------------------------------------------------------------------
-// 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
-//----------------------------------------------------------------------------
-//
-// Stroke generator
-//
-//----------------------------------------------------------------------------
-#include <math.h>
-#include "agg_vcgen_stroke.h"
-#include "agg_shorten_path.h"
-
-namespace agg
-{
-
- //------------------------------------------------------------------------
- vcgen_stroke::vcgen_stroke() :
- m_src_vertices(),
- m_out_vertices(),
- m_width(0.5),
- m_miter_limit(4.0),
- m_inner_miter_limit(1.0 + 1.0/64.0),
- m_approx_scale(1.0),
- m_shorten(0.0),
- m_line_cap(butt_cap),
- m_line_join(miter_join),
- m_inner_line_join(miter_join_revert),
- m_closed(0),
- m_status(initial),
- m_src_vertex(0),
- m_out_vertex(0)
- {
- }
-
-
- //------------------------------------------------------------------------
- void vcgen_stroke::miter_limit_theta(double t)
- {
- m_miter_limit = 1.0 / sin(t * 0.5) ;
- }
-
-
- //------------------------------------------------------------------------
- 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:
- stroke_calc_cap(m_out_vertices,
- m_src_vertices[0],
- m_src_vertices[1],
- m_src_vertices[0].dist,
- m_line_cap,
- m_width,
- m_approx_scale);
- m_src_vertex = 1;
- m_prev_status = outline1;
- m_status = out_vertices;
- m_out_vertex = 0;
- break;
-
- case cap2:
- stroke_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_line_cap,
- m_width,
- m_approx_scale);
- 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;
- }
- }
- stroke_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_width,
- m_line_join,
- m_inner_line_join,
- m_miter_limit,
- m_inner_miter_limit,
- m_approx_scale);
- ++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;
- stroke_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_width,
- m_line_join,
- m_inner_line_join,
- m_miter_limit,
- m_inner_miter_limit,
- m_approx_scale);
-
- 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_type& 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 (unsigned)path_cmd_end_poly | (unsigned)path_flags_close | (unsigned)path_flags_ccw;
-
- case end_poly2:
- m_status = m_prev_status;
- return (unsigned)path_cmd_end_poly | (unsigned)path_flags_close | (unsigned)path_flags_cw;
-
- case stop:
- cmd = path_cmd_stop;
- break;
- }
- }
- return cmd;
- }
-
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-25 06:05:34 +0000