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-model.h>
  25 #include <cpml/cpml.h>
  26
  27
  28 G_BEGIN_DECLS
  29
  30 #define ADG_TYPE_PATH             (adg_path_get_type ())
  31 #define ADG_PATH(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_PATH, AdgPath))
  32 #define ADG_PATH_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_PATH, AdgPathClass))
  33 #define ADG_IS_PATH(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_PATH))
  34 #define ADG_IS_PATH_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_PATH))
  35 #define ADG_PATH_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_PATH, AdgPathClass))
  36
  37 typedef struct _AdgPath        AdgPath;
  38 typedef struct _AdgPathClass   AdgPathClass;
  39 typedef struct _AdgPathPrivate AdgPathPrivate;
  40
  41 struct _AdgPath {
  42     /*< private >*/
  43     AdgModel             model;
  44     AdgPathPrivate      *priv;
  45 };
  46
  47 struct _AdgPathClass {
  48     AdgModelClass        parent_class;
  49 };
  50
  51
  52 GType           adg_path_get_type               (void) G_GNUC_CONST;
  53 AdgModel *      adg_path_new                    (void);
  54
  55 const cairo_path_t *
  56                 adg_path_get_cairo_path         (AdgPath        *path);
  57 void            adg_path_get_current_point      (AdgPath        *path,
  58                                                  gdouble        *x,
  59                                                  gdouble        *y);
  60 gboolean        adg_path_has_current_point      (AdgPath        *path);
  61
  62 void            adg_path_append                 (AdgPath        *path,
  63                                                  cairo_path_data_type_t type,
  64                                                  ...);
  65 void            adg_path_append_valist          (AdgPath        *path,
  66                                                  cairo_path_data_type_t type,
  67                                                  va_list var_args);
  68 void            adg_path_move_to                (AdgPath        *path,
  69                                                  gdouble         x,
  70                                                  gdouble         y);
  71 void            adg_path_line_to                (AdgPath        *path,
  72                                                  gdouble         x,
  73                                                  gdouble         y);
  74 void            adg_path_arc_to                 (AdgPath        *path,
  75                                                  gdouble         x1,
  76                                                  gdouble         y1,
  77                                                  gdouble         x2,
  78                                                  gdouble         y2);
  79 void            adg_path_curve_to               (AdgPath        *path,
  80                                                  gdouble         x1,
  81                                                  gdouble         y1,
  82                                                  gdouble         x2,
  83                                                  gdouble         y2,
  84                                                  gdouble         x3,
  85                                                  gdouble         y3);
  86 void            adg_path_close                  (AdgPath        *path);
  87
  88 void            adg_path_arc                    (AdgPath        *path,
  89                                                  gdouble         xc,
  90                                                  gdouble         yc,
  91                                                  gdouble         r,
  92                                                  gdouble         angle1,
  93                                                  gdouble         angle2);
  94
  95 void            adg_path_dump                   (AdgPath        *path);
  96
  97 G_END_DECLS
  98
  99
 100 #endif /* __ADG_PATH_H__ */