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Diffstat (limited to 'agg/inc/agg_trans_single_path.h')
-rwxr-xr-x | agg/inc/agg_trans_single_path.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/agg/inc/agg_trans_single_path.h b/agg/inc/agg_trans_single_path.h new file mode 100755 index 000000000000..68369626c396 --- /dev/null +++ b/agg/inc/agg_trans_single_path.h @@ -0,0 +1,97 @@ +//---------------------------------------------------------------------------- +// 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 +//---------------------------------------------------------------------------- + +#ifndef AGG_TRANS_SINGLE_PATH_INCLUDED +#define AGG_TRANS_SINGLE_PATH_INCLUDED + +#include "agg_basics.h" +#include "agg_vertex_sequence.h" + +namespace agg +{ + + // See also: agg_trans_single_path.cpp + // + //-------------------------------------------------------trans_single_path + class trans_single_path + { + enum status_e + { + initial, + making_path, + ready + }; + + public: + typedef vertex_sequence<vertex_dist, 6> vertex_storage; + + trans_single_path(); + + //-------------------------------------------------------------------- + void base_length(double v) { m_base_length = v; } + double base_length() const { return m_base_length; } + + //-------------------------------------------------------------------- + void preserve_x_scale(bool f) { m_preserve_x_scale = f; } + bool preserve_x_scale() const { return m_preserve_x_scale; } + + //-------------------------------------------------------------------- + void reset(); + void move_to(double x, double y); + void line_to(double x, double y); + void finalize_path(); + + //-------------------------------------------------------------------- + template<class VertexSource> + void add_path(VertexSource& vs, unsigned path_id=0) + { + double x; + double y; + + unsigned cmd; + vs.rewind(path_id); + while(!is_stop(cmd = vs.vertex(&x, &y))) + { + if(is_move_to(cmd)) + { + move_to(x, y); + } + else + { + if(is_vertex(cmd)) + { + line_to(x, y); + } + } + } + finalize_path(); + } + + //-------------------------------------------------------------------- + double total_length() const; + void transform(double *x, double *y) const; + + private: + vertex_storage m_src_vertices; + double m_base_length; + double m_kindex; + status_e m_status; + bool m_preserve_x_scale; + }; + + +} + +#endif |