mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-17 06:06:00 -06:00
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
//----------------------------------------------------------------------------
|
|
// 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.
|
|
//----------------------------------------------------------------------------
|
|
|
|
#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
|