98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
//----------------------------------------------------------------------------
|
|
// Anti-Grain Geometry - Version 2.4
|
|
// 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
|
|
//----------------------------------------------------------------------------
|
|
|
|
#ifndef AGG_TRANS_SINGLE_PATH_INCLUDED
|
|
#define AGG_TRANS_SINGLE_PATH_INCLUDED
|
|
|
|
#include "agg_basics.h"
|
|
#include "agg_vertex_sequence.h"
|
|
|
|
namespace agg
|
|
{
|
|
|
|
// See also: agg_trans_single_path.cpp
|
|
//
|
|
//-------------------------------------------------------trans_single_path
|
|
class trans_single_path
|
|
{
|
|
enum status_e
|
|
{
|
|
initial,
|
|
making_path,
|
|
ready
|
|
};
|
|
|
|
public:
|
|
typedef vertex_sequence<vertex_dist, 6> vertex_storage;
|
|
|
|
trans_single_path();
|
|
|
|
//--------------------------------------------------------------------
|
|
void base_length(double v) { m_base_length = v; }
|
|
double base_length() const { return m_base_length; }
|
|
|
|
//--------------------------------------------------------------------
|
|
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_to(double x, double y);
|
|
void line_to(double x, double y);
|
|
void finalize_path();
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class VertexSource>
|
|
void add_path(VertexSource& vs, unsigned path_id=0)
|
|
{
|
|
double x;
|
|
double y;
|
|
|
|
unsigned cmd;
|
|
vs.rewind(path_id);
|
|
while(!is_stop(cmd = vs.vertex(&x, &y)))
|
|
{
|
|
if(is_move_to(cmd))
|
|
{
|
|
move_to(x, y);
|
|
}
|
|
else
|
|
{
|
|
if(is_vertex(cmd))
|
|
{
|
|
line_to(x, y);
|
|
}
|
|
}
|
|
}
|
|
finalize_path();
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
double total_length() const;
|
|
void transform(double *x, double *y) const;
|
|
|
|
private:
|
|
vertex_storage m_src_vertices;
|
|
double m_base_length;
|
|
double m_kindex;
|
|
status_e m_status;
|
|
bool m_preserve_x_scale;
|
|
};
|
|
|
|
|
|
}
|
|
|
|
#endif
|