adg/adg-path.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007,2008,2009 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 #ifndef __ADG_PATH_H__
  22 #define __ADG_PATH_H__
  23
  24 #include <adg/adg-trail.h>
  25 #include <adg/adg-primitive.h>
  26 #include <adg/adg-segment.h>
  27
  28
  29 G_BEGIN_DECLS
  30
  31 #define ADG_TYPE_PATH             (adg_path_get_type())
  32 #define ADG_PATH(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj), ADG_TYPE_PATH, AdgPath))
  33 #define ADG_PATH_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), ADG_TYPE_PATH, AdgPathClass))
  34 #define ADG_IS_PATH(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj), ADG_TYPE_PATH))
  35 #define ADG_IS_PATH_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), ADG_TYPE_PATH))
  36 #define ADG_PATH_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), ADG_TYPE_PATH, AdgPathClass))
  37
  38 typedef struct _AdgPath        AdgPath;
  39 typedef struct _AdgPathClass   AdgPathClass;
  40
  41 struct _AdgPath {
  42     /*< private >*/
  43     AdgTrail             parent;
  44     gpointer             data;
  45 };
  46
  47 struct _AdgPathClass {
  48     /*< private >*/
  49     AdgTrailClass        parent_class;
  50 };
  51
  52
  53 GType           adg_path_get_type               (void) G_GNUC_CONST;
  54 AdgPath *       adg_path_new                    (void);
  55
  56 const AdgPair * adg_path_current_point          (AdgPath        *path);
  57 gboolean        adg_path_has_current_point      (AdgPath        *path);
  58 const AdgPrimitive *
  59                 adg_path_last_primitive         (AdgPath        *path);
  60 const AdgPrimitive *
  61                 adg_path_over_primitive         (AdgPath        *path);
  62
  63 void            adg_path_append                 (AdgPath        *path,
  64                                                  cairo_path_data_type_t type,
  65                                                  ...);
  66 void            adg_path_append_valist          (AdgPath        *path,
  67                                                  cairo_path_data_type_t type,
  68                                                  va_list         var_args);
  69 void            adg_path_append_primitive       (AdgPath        *path,
  70                                                  const AdgPrimitive
  71                                                                 *primitive);
  72 void            adg_path_append_segment         (AdgPath        *path,
  73                                                  const AdgSegment *segment);
  74 void            adg_path_append_cpml_path       (AdgPath        *path,
  75                                                  const CpmlPath *cpml_path);
  76 void            adg_path_move_to                (AdgPath        *path,
  77                                                  const AdgPair  *pair);
  78 void            adg_path_move_to_explicit       (AdgPath        *path,
  79                                                  gdouble         x,
  80                                                  gdouble         y);
  81 void            adg_path_line_to                (AdgPath        *path,
  82                                                  const AdgPair  *pair);
  83 void            adg_path_line_to_explicit       (AdgPath        *path,
  84                                                  gdouble         x,
  85                                                  gdouble         y);
  86 void            adg_path_arc_to                 (AdgPath        *path,
  87                                                  const AdgPair  *throught,
  88                                                  const AdgPair  *pair);
  89 void            adg_path_arc_to_explicit        (AdgPath        *path,
  90                                                  gdouble         x1,
  91                                                  gdouble         y1,
  92                                                  gdouble         x2,
  93                                                  gdouble         y2);
  94 void            adg_path_curve_to               (AdgPath        *path,
  95                                                  const AdgPair  *control1,
  96                                                  const AdgPair  *control2,
  97                                                  const AdgPair  *pair);
  98 void            adg_path_curve_to_explicit      (AdgPath        *path,
  99                                                  gdouble         x1,
 100                                                  gdouble         y1,
 101                                                  gdouble         x2,
 102                                                  gdouble         y2,
 103                                                  gdouble         x3,
 104                                                  gdouble         y3);
 105 void            adg_path_close                  (AdgPath        *path);
 106
 107 void            adg_path_arc                    (AdgPath        *path,
 108                                                  const AdgPair  *pair,
 109                                                  gdouble         r,
 110                                                  gdouble         start,
 111                                                  gdouble         end);
 112 void            adg_path_arc_explicit           (AdgPath        *path,
 113                                                  gdouble         xc,
 114                                                  gdouble         yc,
 115                                                  gdouble         r,
 116                                                  gdouble         start,
 117                                                  gdouble         end);
 118 void            adg_path_chamfer                (AdgPath        *path,
 119                                                  gdouble         delta1,
 120                                                  gdouble         delta2);
 121 void            adg_path_fillet                 (AdgPath        *path,
 122                                                  gdouble         radius);
 123 void            adg_path_reflect                (AdgPath        *path,
 124                                                  const CpmlVector *vector);
 125
 126 G_END_DECLS
 127
 128
 129 #endif /* __ADG_PATH_H__ */