src/adg/adg-path.h

   1 /* ADG - Automatic Drawing Generation
   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(__ADG_H__)
  22 #error "Only <adg.h> can be included directly."
  23 #endif
  24
  25
  26 #ifndef __ADG_PATH_H__
  27 #define __ADG_PATH_H__
  28
  29
  30 G_BEGIN_DECLS
  31
  32 #define ADG_TYPE_PATH             (adg_path_get_type())
  33 #define ADG_PATH(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj), ADG_TYPE_PATH, AdgPath))
  34 #define ADG_PATH_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), ADG_TYPE_PATH, AdgPathClass))
  35 #define ADG_IS_PATH(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj), ADG_TYPE_PATH))
  36 #define ADG_IS_PATH_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), ADG_TYPE_PATH))
  37 #define ADG_PATH_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), ADG_TYPE_PATH, AdgPathClass))
  38
  39 typedef struct _AdgPath        AdgPath;
  40 typedef struct _AdgPathClass   AdgPathClass;
  41
  42 struct _AdgPath {
  43     /*< private >*/
  44     AdgTrail            parent;
  45 };
  46
  47 struct _AdgPathClass {
  48     /*< private >*/
  49     AdgTrailClass       parent_class;
  50 };
  51
  52
  53 GType           adg_path_get_type               (void);
  54 AdgPath *       adg_path_new                    (void);
  55
  56 const CpmlPair *adg_path_get_current_point      (AdgPath        *path);
  57 gboolean        adg_path_has_current_point      (AdgPath        *path);
  58 const CpmlPrimitive *
  59                 adg_path_last_primitive         (AdgPath        *path);
  60 const CpmlPrimitive *
  61                 adg_path_over_primitive         (AdgPath        *path);
  62 void            adg_path_append                 (AdgPath        *path,
  63                                                  gint            type,
  64                                                  ...);
  65 void            adg_path_append_valist          (AdgPath        *path,
  66                                                  CpmlPrimitiveType type,
  67                                                  va_list         var_args);
  68 void            adg_path_append_array           (AdgPath        *path,
  69                                                  CpmlPrimitiveType type,
  70                                                  const CpmlPair**pairs);
  71 void            adg_path_append_primitive       (AdgPath        *path,
  72                                                  const CpmlPrimitive
  73                                                                 *primitive);
  74 void            adg_path_append_segment         (AdgPath        *path,
  75                                                  const CpmlSegment
  76                                                                 *segment);
  77 void            adg_path_append_cairo_path      (AdgPath        *path,
  78                                                  const cairo_path_t
  79                                                                 *cairo_path);
  80 void            adg_path_append_trail           (AdgPath        *path,
  81                                                  AdgTrail       *trail);
  82 void            adg_path_remove_primitive       (AdgPath        *path);
  83 void            adg_path_move_to                (AdgPath        *path,
  84                                                  const CpmlPair *pair);
  85 void            adg_path_move_to_explicit       (AdgPath        *path,
  86                                                  gdouble         x,
  87                                                  gdouble         y);
  88 void            adg_path_line_to                (AdgPath        *path,
  89                                                  const CpmlPair *pair);
  90 void            adg_path_line_to_explicit       (AdgPath        *path,
  91                                                  gdouble         x,
  92                                                  gdouble         y);
  93 void            adg_path_arc_to                 (AdgPath        *path,
  94                                                  const CpmlPair *through,
  95                                                  const CpmlPair *pair);
  96 void            adg_path_arc_to_explicit        (AdgPath        *path,
  97                                                  gdouble         x1,
  98                                                  gdouble         y1,
  99                                                  gdouble         x2,
 100                                                  gdouble         y2);
 101 void            adg_path_curve_to               (AdgPath        *path,
 102                                                  const CpmlPair *control1,
 103                                                  const CpmlPair *control2,
 104                                                  const CpmlPair *pair);
 105 void            adg_path_curve_to_explicit      (AdgPath        *path,
 106                                                  gdouble         x1,
 107                                                  gdouble         y1,
 108                                                  gdouble         x2,
 109                                                  gdouble         y2,
 110                                                  gdouble         x3,
 111                                                  gdouble         y3);
 112 void            adg_path_close                  (AdgPath        *path);
 113
 114 void            adg_path_arc                    (AdgPath        *path,
 115                                                  const CpmlPair *center,
 116                                                  gdouble         r,
 117                                                  gdouble         start,
 118                                                  gdouble         end);
 119 void            adg_path_arc_explicit           (AdgPath        *path,
 120                                                  gdouble         xc,
 121                                                  gdouble         yc,
 122                                                  gdouble         r,
 123                                                  gdouble         start,
 124                                                  gdouble         end);
 125 void            adg_path_chamfer                (AdgPath        *path,
 126                                                  gdouble         delta1,
 127                                                  gdouble         delta2);
 128 void            adg_path_fillet                 (AdgPath        *path,
 129                                                  gdouble         radius);
 130 void            adg_path_join                   (AdgPath        *path);
 131 void            adg_path_reflect                (AdgPath        *path,
 132                                                  const CpmlVector *vector);
 133 void            adg_path_reflect_explicit       (AdgPath        *path,
 134                                                  gdouble         x,
 135                                                  gdouble         y);
 136
 137 G_END_DECLS
 138
 139
 140 #endif /* __ADG_PATH_H__ */