src/cpml/cpml-arc.h

   1 /* CPML - Cairo Path Manipulation Library
   2  * Copyright (C) 2008,2009,2010  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_ARC_H__
  27 #define __CPML_ARC_H__
  28
  29
  30 CAIRO_BEGIN_DECLS
  31
  32 #ifdef CAIRO_PATH_ARC_TO
  33 #define CPML_ARC        CAIRO_PATH_ARC_TO
  34 #else
  35 #define CPML_ARC        100
  36 #endif
  37
  38
  39 cairo_bool_t
  40         cpml_arc_info                   (const CpmlPrimitive    *arc,
  41                                          CpmlPair               *center,
  42                                          double                 *r,
  43                                          double                 *start,
  44                                          double                 *end);
  45 void    cpml_arc_to_cairo               (const CpmlPrimitive    *arc,
  46                                          cairo_t                *cr);
  47 void    cpml_arc_to_curves              (const CpmlPrimitive    *arc,
  48                                          CpmlSegment            *segment,
  49                                          size_t                  n_curves);
  50
  51 CAIRO_END_DECLS
  52
  53
  54 #endif /* __CPML_ARC_H__ */