src/cpml/cpml-primitive.h

   1 /* CPML - Cairo Path Manipulation Library
   2  * Copyright (C) 2007-2021  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 typedef struct _CpmlPrimitive CpmlPrimitive;
  33 typedef cairo_path_data_type_t CpmlPrimitiveType;
  34
  35 #define CPML_MOVE   CAIRO_PATH_MOVE_TO
  36 #define CPML_LINE   CAIRO_PATH_LINE_TO
  37 #define CPML_CURVE  CAIRO_PATH_CURVE_TO
  38 #define CPML_CLOSE  CAIRO_PATH_CLOSE_PATH
  39 #define CPML_ARC    ((CpmlPrimitiveType) 19)
  40
  41 struct _CpmlPrimitive {
  42     /*< public >*/
  43     CpmlSegment       *segment;
  44     cairo_path_data_t *org;
  45     cairo_path_data_t *data;
  46 };
  47
  48 size_t  cpml_primitive_type_get_n_points(CpmlPrimitiveType       type);
  49
  50 CpmlPrimitiveType
  51         cpml_primitive_type             (const CpmlPrimitive    *primitive);
  52 void    cpml_primitive_from_segment     (CpmlPrimitive          *primitive,
  53                                          CpmlSegment            *segment);
  54 void    cpml_primitive_copy             (CpmlPrimitive          *primitive,
  55                                          const CpmlPrimitive    *src);
  56 int     cpml_primitive_copy_data        (CpmlPrimitive          *primitive,
  57                                          const CpmlPrimitive    *src);
  58 void    cpml_primitive_reset            (CpmlPrimitive          *primitive);
  59 int     cpml_primitive_next             (CpmlPrimitive          *primitive);
  60 size_t  cpml_primitive_get_n_points     (const CpmlPrimitive    *primitive);
  61 double  cpml_primitive_get_length       (const CpmlPrimitive    *primitive);
  62 void    cpml_primitive_put_extents      (const CpmlPrimitive    *primitive,
  63                                          CpmlExtents            *extents);
  64 int     cpml_primitive_set_point        (CpmlPrimitive          *primitive,
  65                                          int                     n_point,
  66                                          const CpmlPair         *pair);
  67 int     cpml_primitive_put_point        (const CpmlPrimitive    *primitive,
  68                                          int                     n_point,
  69                                          CpmlPair               *pair);
  70 void    cpml_primitive_put_pair_at      (const CpmlPrimitive    *primitive,
  71                                          double                  pos,
  72                                          CpmlPair               *pair);
  73 void    cpml_primitive_put_vector_at    (const CpmlPrimitive    *primitive,
  74                                          double                  pos,
  75                                          CpmlVector             *vector);
  76 int     cpml_primitive_is_inside        (const CpmlPrimitive    *primitive,
  77                                          const CpmlPair         *pair);
  78 double  cpml_primitive_get_closest_pos  (const CpmlPrimitive    *primitive,
  79                                          const CpmlPair         *pair);
  80 size_t  cpml_primitive_put_intersections(const CpmlPrimitive    *primitive,
  81                                          const CpmlPrimitive    *primitive2,
  82                                          size_t                  n_dest,
  83                                          CpmlPair               *dest);
  84 size_t  cpml_primitive_put_intersections_with_segment
  85                                         (const CpmlPrimitive    *primitive,
  86                                          const CpmlSegment      *segment,
  87                                          size_t                  n_dest,
  88                                          CpmlPair               *dest);
  89 void    cpml_primitive_offset           (CpmlPrimitive          *primitive,
  90                                          double                  offset);
  91 int     cpml_primitive_join             (CpmlPrimitive          *primitive,
  92                                          CpmlPrimitive          *primitive2);
  93 void    cpml_primitive_to_cairo         (const CpmlPrimitive    *primitive,
  94                                          cairo_t                *cr);
  95 void    cpml_primitive_dump             (const CpmlPrimitive    *primitive,
  96                                          int                     org_also);
  97
  98 CAIRO_END_DECLS
  99
 100
 101 #endif /* __CPML_PRIMITIVE_H__ */