diff options
Diffstat (limited to 'third_party/agg23/agg_vcgen_dash.h')
| -rw-r--r-- | third_party/agg23/agg_vcgen_dash.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/third_party/agg23/agg_vcgen_dash.h b/third_party/agg23/agg_vcgen_dash.h new file mode 100644 index 0000000000..9c3aa630c2 --- /dev/null +++ b/third_party/agg23/agg_vcgen_dash.h @@ -0,0 +1,75 @@ + +//---------------------------------------------------------------------------- +// Anti-Grain Geometry - Version 2.3 +// 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 +{ +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(FX_FLOAT dash_len, FX_FLOAT gap_len); + void dash_start(FX_FLOAT ds); + void shorten(FX_FLOAT s) + { + m_shorten = s; + } + double shorten() const + { + return m_shorten; + } + void remove_all(); + void add_vertex(FX_FLOAT x, FX_FLOAT y, unsigned cmd); + void rewind(unsigned path_id); + unsigned vertex(FX_FLOAT* x, FX_FLOAT* y); +private: + vcgen_dash(const vcgen_dash&); + const vcgen_dash& operator = (const vcgen_dash&); + void calc_dash_start(FX_FLOAT ds); + FX_FLOAT m_dashes[max_dashes]; + FX_FLOAT m_total_dash_len; + unsigned m_num_dashes; + FX_FLOAT m_dash_start; + FX_FLOAT m_shorten; + FX_FLOAT m_curr_dash_start; + unsigned m_curr_dash; + FX_FLOAT 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 |