cpml/cpml-primitive.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_PRIMITIVE_H__
  27 #define __CPML_PRIMITIVE_H__
  28
  29
  30 CAIRO_BEGIN_DECLS
  31
  32 #define CPML_MOVE       CAIRO_PATH_MOVE_TO
  33
  34
  35 typedef struct _CpmlPrimitive CpmlPrimitive;
  36 typedef cairo_path_data_type_t CpmlPrimitiveType;
  37
  38 struct _CpmlPrimitive {
  39     CpmlSegment       *segment;
  40     cairo_path_data_t *org;
  41     cairo_path_data_t *data;
  42 };
  43
  44 size_t          cpml_primitive_type_get_n_points
  45                                            (CpmlPrimitiveType    type);
  46 void            cpml_primitive_from_segment(CpmlPrimitive       *primitive,
  47                                             CpmlSegment         *segment);
  48 void            cpml_primitive_copy        (CpmlPrimitive       *primitive,
  49                                             const CpmlPrimitive *src);
  50 void            cpml_primitive_reset       (CpmlPrimitive       *primitive);
  51 cairo_bool_t    cpml_primitive_next        (CpmlPrimitive       *primitive);
  52 size_t          cpml_primitive_get_n_points(const CpmlPrimitive *primitive);
  53 cairo_path_data_t *
  54                 cpml_primitive_get_point   (const CpmlPrimitive *primitive,
  55                                             int                  n_point);
  56 double          cpml_primitive_get_length  (const CpmlPrimitive *primitive);
  57 void            cpml_primitive_put_extents (const CpmlPrimitive *primitive,
  58                                             CpmlExtents         *extents);
  59 void            cpml_primitive_put_pair_at (const CpmlPrimitive *primitive,
  60                                             double               pos,
  61                                             CpmlPair            *pair);
  62 void            cpml_primitive_put_vector_at
  63                                            (const CpmlPrimitive *primitive,
  64                                             double               pos,
  65                                             CpmlVector          *vector);
  66 double          cpml_primitive_get_closest_pos
  67                                            (const CpmlPrimitive *primitive,
  68                                             const CpmlPair      *pair);
  69 size_t          cpml_primitive_put_intersections
  70                                            (const CpmlPrimitive *primitive,
  71                                             const CpmlPrimitive *primitive2,
  72                                             size_t               n_dest,
  73                                             CpmlPair            *dest);
  74 size_t          cpml_primitive_put_intersections_with_segment
  75                                            (const CpmlPrimitive *primitive,
  76                                             const CpmlSegment   *segment,
  77                                             size_t               n_dest,
  78                                             CpmlPair            *dest);
  79 void            cpml_primitive_offset      (CpmlPrimitive       *primitive,
  80                                             double               offset);
  81 cairo_bool_t    cpml_primitive_join        (CpmlPrimitive       *primitive,
  82                                             CpmlPrimitive       *primitive2);
  83 void            cpml_primitive_to_cairo    (const CpmlPrimitive *primitive,
  84                                             cairo_t             *cr);
  85 void            cpml_primitive_dump        (const CpmlPrimitive *primitive,
  86                                             cairo_bool_t         org_also);
  87
  88 CAIRO_END_DECLS
  89
  90
  91 #endif /* __CPML_PRIMITIVE_H__ */