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93 lines
2.6 KiB
93 lines
2.6 KiB
//---------------------------------------------------------------------------- |
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// Anti-Grain Geometry - Version 2.4 |
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com) |
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// |
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// Permission to copy, use, modify, sell and distribute this software |
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// is granted provided this copyright notice appears in all copies. |
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// This software is provided "as is" without express or implied |
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// warranty, and with no claim as to its suitability for any purpose. |
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// |
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//---------------------------------------------------------------------------- |
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// Contact: mcseem@antigrain.com |
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// mcseemagg@yahoo.com |
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// http://www.antigrain.com |
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//---------------------------------------------------------------------------- |
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// |
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// Line dash generator |
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// |
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//---------------------------------------------------------------------------- |
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#ifndef AGG_VCGEN_DASH_INCLUDED |
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#define AGG_VCGEN_DASH_INCLUDED |
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#include "agg_basics.h" |
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#include "agg_vertex_sequence.h" |
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namespace agg |
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{ |
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//---------------------------------------------------------------vcgen_dash |
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// |
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// See Implementation agg_vcgen_dash.cpp |
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// |
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class vcgen_dash |
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{ |
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enum max_dashes_e |
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{ |
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max_dashes = 32 |
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}; |
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enum status_e |
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{ |
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initial, |
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ready, |
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polyline, |
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stop |
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}; |
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public: |
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typedef vertex_sequence<vertex_dist, 6> vertex_storage; |
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vcgen_dash(); |
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void remove_all_dashes(); |
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void add_dash(double dash_len, double gap_len); |
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void dash_start(double ds); |
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void shorten(double s) { m_shorten = s; } |
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double shorten() const { return m_shorten; } |
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// Vertex Generator Interface |
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void remove_all(); |
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void add_vertex(double x, double y, unsigned cmd); |
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// Vertex Source Interface |
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void rewind(unsigned path_id); |
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unsigned vertex(double* x, double* y); |
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private: |
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vcgen_dash(const vcgen_dash&); |
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const vcgen_dash& operator = (const vcgen_dash&); |
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void calc_dash_start(double ds); |
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double m_dashes[max_dashes]; |
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double m_total_dash_len; |
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unsigned m_num_dashes; |
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double m_dash_start; |
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double m_shorten; |
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double m_curr_dash_start; |
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unsigned m_curr_dash; |
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double m_curr_rest; |
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const vertex_dist* m_v1; |
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const vertex_dist* m_v2; |
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vertex_storage m_src_vertices; |
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unsigned m_closed; |
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status_e m_status; |
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unsigned m_src_vertex; |
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}; |
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} |
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#endif
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