adg/adg-trail.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_TRAIL_H__
  22 #define __ADG_TRAIL_H__
  23
  24 #include <adg/adg-model.h>
  25 #include <adg/adg-primitive.h>
  26 #include <adg/adg-segment.h>
  27 #include <cpml/cpml.h>
  28
  29
  30 G_BEGIN_DECLS
  31
  32 #define ADG_TYPE_TRAIL             (adg_trail_get_type())
  33 #define ADG_TRAIL(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj), ADG_TYPE_TRAIL, AdgTrail))
  34 #define ADG_TRAIL_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), ADG_TYPE_TRAIL, AdgTrailClass))
  35 #define ADG_IS_TRAIL(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj), ADG_TYPE_TRAIL))
  36 #define ADG_IS_TRAIL_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), ADG_TYPE_TRAIL))
  37 #define ADG_TRAIL_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), ADG_TYPE_TRAIL, AdgTrailClass))
  38
  39
  40 typedef struct _AdgTrail        AdgTrail;
  41 typedef struct _AdgTrailClass   AdgTrailClass;
  42 typedef CpmlPath * (*AdgTrailCallback) (AdgTrail *trail, gpointer user_data);
  43
  44 struct _AdgTrail {
  45     /*< private >*/
  46     AdgModel             parent;
  47     gpointer             data;
  48 };
  49
  50 struct _AdgTrailClass {
  51     /*< private >*/
  52     AdgModelClass        parent_class;
  53     /*< public >*/
  54     CpmlPath *          (*get_cpml_path)        (AdgTrail       *trail);
  55 };
  56
  57
  58 GType           adg_trail_get_type              (void) G_GNUC_CONST;
  59 AdgTrail *      adg_trail_new                   (AdgTrailCallback callback,
  60                                                  gpointer         user_data);
  61
  62 const cairo_path_t *
  63                 adg_trail_get_cairo_path        (AdgTrail        *trail);
  64 CpmlPath *      adg_trail_get_cpml_path         (AdgTrail        *trail);
  65 gboolean        adg_trail_get_segment           (AdgTrail        *trail,
  66                                                  AdgSegment      *segment,
  67                                                  guint            n);
  68 const CpmlExtents *
  69                 adg_trail_extents               (AdgTrail        *trail);
  70 void            adg_trail_dump                  (AdgTrail        *trail);
  71
  72 G_END_DECLS
  73
  74
  75 #endif /* __ADG_TRAIL_H__ */