//------------------------------------------------------------------------
void vcgen_contour::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
{
if(is_end_poly(cmd))
{
m_closed = get_close_flag(cmd);
if(m_orientation == path_flags_none)
{
m_orientation = get_orientation(cmd);
}
}
}
}
}
//------------------------------------------------------------------------
void path_renderer::move_to(double x, double y, bool rel) // M, m
{
if(rel && m_storage.total_vertices()) {
double x2,y2;
unsigned cmd = m_storage.last_vertex(&x2,&y2);
if(is_end_poly(cmd)) {
// rewind until we find a real vertex
unsigned idx = m_storage.total_vertices()-1;
while(idx && !is_vertex(m_storage.vertex(--idx,&x2,&y2)));
}
x += x2;
y += y2;
}
m_storage.move_to(x, y);
}
unsigned conv_adaptor_vpgen<VertexSource, VPGen>::vertex(double* x, double* y)
{
unsigned cmd = path_cmd_stop;
for(;;)
{
cmd = m_vpgen.vertex(x, y);
if(!is_stop(cmd)) break;
if(m_poly_flags && !m_vpgen.auto_unclose())
{
*x = 0.0;
*y = 0.0;
cmd = m_poly_flags;
m_poly_flags = 0;
break;
}
if(m_vertices < 0)
{
if(m_vertices < -1)
{
m_vertices = 0;
return path_cmd_stop;
}
m_vpgen.move_to(m_start_x, m_start_y);
m_vertices = 1;
continue;
}
double tx, ty;
cmd = m_source->vertex(&tx, &ty);
if(is_vertex(cmd))
{
if(is_move_to(cmd))
{
if(m_vpgen.auto_close() && m_vertices > 2)
{
m_vpgen.line_to(m_start_x, m_start_y);
m_poly_flags = path_cmd_end_poly | path_flags_close;
m_start_x = tx;
m_start_y = ty;
m_vertices = -1;
continue;
}
m_vpgen.move_to(tx, ty);
m_start_x = tx;
m_start_y = ty;
m_vertices = 1;
}
else
{
m_vpgen.line_to(tx, ty);
++m_vertices;
}
}
else
{
if(is_end_poly(cmd))
{
m_poly_flags = cmd;
if(is_closed(cmd) || m_vpgen.auto_close())
{
if(m_vpgen.auto_close()) m_poly_flags |= path_flags_close;
if(m_vertices > 2)
{
m_vpgen.line_to(m_start_x, m_start_y);
}
m_vertices = 0;
}
}
else
{
// path_cmd_stop
if(m_vpgen.auto_close() && m_vertices > 2)
{
m_vpgen.line_to(m_start_x, m_start_y);
m_poly_flags = path_cmd_end_poly | path_flags_close;
m_vertices = -2;
continue;
}
break;
}
}
}
return cmd;
}
