adg/adg-path.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007-2008, 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 Library 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  * Library 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., 59 Temple Place - Suite 330,
  17  * Boston, MA  02111-1307, USA.
  18  */
  19
  20
  21 #ifndef __ADG_PATH_H__
  22 #define __ADG_PATH_H__
  23
  24 #include <adg/adg-entity.h>
  25
  26
  27 G_BEGIN_DECLS
  28
  29 #define ADG_TYPE_PATH             (adg_path_get_type ())
  30 #define ADG_PATH(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_PATH, AdgPath))
  31 #define ADG_PATH_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_PATH, AdgPathClass))
  32 #define ADG_IS_PATH(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_PATH))
  33 #define ADG_IS_PATH_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_PATH))
  34 #define ADG_PATH_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_PATH, AdgPathClass))
  35
  36 typedef struct _AdgPath        AdgPath;
  37 typedef struct _AdgPathClass   AdgPathClass;
  38 typedef struct _AdgPathPrivate AdgPathPrivate;
  39
  40 struct _AdgPath
  41 {
  42   AdgEntity              entity;
  43
  44   /*< private >*/
  45   AdgPathPrivate        *priv;
  46 };
  47
  48 struct _AdgPathClass
  49 {
  50   AdgEntityClass         parent_class;
  51 };
  52
  53
  54 GType           adg_path_get_type               (void) G_GNUC_CONST;
  55 AdgEntity *     adg_path_new                    (AdgCallback     create_func,
  56                                                  gpointer        user_data);
  57 void            adg_path_clear                  (AdgPath        *path);
  58 const cairo_path_t *
  59                 adg_path_get_cairo_path         (AdgPath        *path);
  60 void            adg_path_chain_ymirror          (AdgPath        *path);
  61 void            adg_path_dump                   (AdgPath        *path);
  62
  63 /* Cairo wrappers */
  64 gboolean        adg_path_get_current_point      (AdgPath        *path,
  65                                                  double         *x,
  66                                                  double         *y);
  67 void            adg_path_close                  (AdgPath        *path);
  68 void            adg_path_arc                    (AdgPath        *path,
  69                                                  double          xc,
  70                                                  double          yc,
  71                                                  double          radius,
  72                                                  double          angle1,
  73                                                  double          angle2);
  74 void            adg_path_arc_negative           (AdgPath        *path,
  75                                                  double          xc,
  76                                                  double          yc,
  77                                                  double          radius,
  78                                                  double          angle1,
  79                                                  double          angle2);
  80 void            adg_path_curve_to               (AdgPath        *path,
  81                                                  double          x1,
  82                                                  double          y1,
  83                                                  double          x2,
  84                                                  double          y2,
  85                                                  double          x3,
  86                                                  double          y3);
  87 void            adg_path_line_to                (AdgPath        *path,
  88                                                  double          x,
  89                                                  double          y);
  90 void            adg_path_move_to                (AdgPath        *path,
  91                                                  double          x,
  92                                                  double          y);
  93 void            adg_path_rectangle              (AdgPath        *path,
  94                                                  double          x,
  95                                                  double          y,
  96                                                  double          width,
  97                                                  double          height);
  98 void            adg_path_rel_curve_to           (AdgPath        *path,
  99                                                  double          dx1,
 100                                                  double          dy1,
 101                                                  double          dx2,
 102                                                  double          dy2,
 103                                                  double          dx3,
 104                                                  double          dy3);
 105 void            adg_path_rel_line_to            (AdgPath        *path,
 106                                                  double          dx,
 107                                                  double          dy);
 108 void            adg_path_rel_move_to            (AdgPath        *path,
 109                                                  double          dx,
 110                                                  double          dy);
 111
 112
 113 G_END_DECLS
 114
 115
 116 #endif /* __ADG_PATH_H__ */