cpml/cpml-line.h

   1 /* CPML - Cairo Path Manipulation Library
   2  * Copyright (C) 2008, 2009  Nicola Fontana <ntd at entidi.it>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20
  21 #if !defined(__CPML_H__)
  22 #error "Only <cpml/cpml.h> can be included directly."
  23 #endif
  24
  25
  26 #ifndef __CPML_LINE_H__
  27 #define __CPML_LINE_H__
  28
  29
  30 CAIRO_BEGIN_DECLS
  31
  32 void    cpml_line_put_extents           (const CpmlPrimitive    *line,
  33                                          CpmlExtents            *extents);
  34 void    cpml_line_put_pair_at           (const CpmlPrimitive    *line,
  35                                          double                  pos,
  36                                          CpmlPair               *pair);
  37 void    cpml_line_put_vector_at         (const CpmlPrimitive    *line,
  38                                          double                  pos,
  39                                          CpmlVector             *vector);
  40 double  cpml_line_get_closest_pos       (const CpmlPrimitive    *line,
  41                                          const CpmlPair         *pair);
  42 int     cpml_line_put_intersections     (const CpmlPrimitive    *line,
  43                                          const CpmlPrimitive    *line2,
  44                                          int                     max,
  45                                          CpmlPair               *dest);
  46 void    cpml_line_offset                (CpmlPrimitive          *line,
  47                                          double                  offset);
  48
  49 CAIRO_END_DECLS
  50
  51
  52 #endif /* __CPML_LINE_H__ */