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//----------------------------------------------------------------------------
// 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
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