You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.6 KiB
94 lines
2.6 KiB
2 years ago
|
//----------------------------------------------------------------------------
|
||
|
|
// 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
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Line dash generator
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
#ifndef AGG_VCGEN_DASH_INCLUDED
|
||
|
|
#define AGG_VCGEN_DASH_INCLUDED
|
||
|
|
|
||
|
|
#include "agg_basics.h"
|
||
|
|
#include "agg_vertex_sequence.h"
|
||
|
|
|
||
|
|
namespace agg
|
||
|
|
{
|
||
|
|
|
||
|
|
//---------------------------------------------------------------vcgen_dash
|
||
|
|
//
|
||
|
|
// See Implementation agg_vcgen_dash.cpp
|
||
|
|
//
|
||
|
|
class vcgen_dash
|
||
|
|
{
|
||
|
|
enum max_dashes_e
|
||
|
|
{
|
||
|
|
max_dashes = 32
|
||
|
|
};
|
||
|
|
|
||
|
|
enum status_e
|
||
|
|
{
|
||
|
|
initial,
|
||
|
|
ready,
|
||
|
|
polyline,
|
||
|
|
stop
|
||
|
|
};
|
||
|
|
|
||
|
|
public:
|
||
|
|
typedef vertex_sequence<vertex_dist, 6> vertex_storage;
|
||
|
|
|
||
|
|
vcgen_dash();
|
||
|
|
|
||
|
|
void remove_all_dashes();
|
||
|
|
void add_dash(double dash_len, double gap_len);
|
||
|
|
void dash_start(double ds);
|
||
|
|
|
||
|
|
void shorten(double s) { m_shorten = s; }
|
||
|
|
double shorten() const { return m_shorten; }
|
||
|
|
|
||
|
|
// Vertex Generator Interface
|
||
|
|
void remove_all();
|
||
|
|
void add_vertex(double x, double y, unsigned cmd);
|
||
|
|
|
||
|
|
// Vertex Source Interface
|
||
|
|
void rewind(unsigned path_id);
|
||
|
|
unsigned vertex(double* x, double* y);
|
||
|
|
|
||
|
|
private:
|
||
|
|
vcgen_dash(const vcgen_dash&);
|
||
|
|
const vcgen_dash& operator = (const vcgen_dash&);
|
||
|
|
|
||
|
|
void calc_dash_start(double ds);
|
||
|
|
|
||
|
|
double m_dashes[max_dashes];
|
||
|
|
double m_total_dash_len;
|
||
|
|
unsigned m_num_dashes;
|
||
|
|
double m_dash_start;
|
||
|
|
double m_shorten;
|
||
|
|
double m_curr_dash_start;
|
||
|
|
unsigned m_curr_dash;
|
||
|
|
double m_curr_rest;
|
||
|
|
const vertex_dist* m_v1;
|
||
|
|
const vertex_dist* m_v2;
|
||
|
|
|
||
|
|
vertex_storage m_src_vertices;
|
||
|
|
unsigned m_closed;
|
||
|
|
status_e m_status;
|
||
|
|
unsigned m_src_vertex;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|