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 #if !defined(__ADG_H__)
  22 #error "Only <adg/adg.h> can be included directly."
  23 #endif
  24
  25
  26 #ifndef __ADG_TRAIL_H__
  27 #define __ADG_TRAIL_H__
  28
  29 #include <adg/adg-model.h>
  30 #include <adg/adg-primitive.h>
  31 #include <adg/adg-segment.h>
  32 #include <cpml/cpml.h>
  33
  34
  35 G_BEGIN_DECLS
  36
  37 #define ADG_TYPE_TRAIL             (adg_trail_get_type())
  38 #define ADG_TRAIL(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj), ADG_TYPE_TRAIL, AdgTrail))
  39 #define ADG_TRAIL_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), ADG_TYPE_TRAIL, AdgTrailClass))
  40 #define ADG_IS_TRAIL(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj), ADG_TYPE_TRAIL))
  41 #define ADG_IS_TRAIL_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), ADG_TYPE_TRAIL))
  42 #define ADG_TRAIL_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), ADG_TYPE_TRAIL, AdgTrailClass))
  43
  44
  45 typedef struct _AdgTrail        AdgTrail;
  46 typedef struct _AdgTrailClass   AdgTrailClass;
  47 typedef CpmlPath * (*AdgTrailCallback) (AdgTrail *trail, gpointer user_data);
  48
  49 struct _AdgTrail {
  50     /*< private >*/
  51     AdgModel             parent;
  52     gpointer             data;
  53 };
  54
  55 struct _AdgTrailClass {
  56     /*< private >*/
  57     AdgModelClass        parent_class;
  58     /*< public >*/
  59     CpmlPath *          (*get_cpml_path)        (AdgTrail       *trail);
  60 };
  61
  62
  63 GType               adg_trail_get_type          (void) G_GNUC_CONST;
  64 AdgTrail *          adg_trail_new               (AdgTrailCallback callback,
  65                                                  gpointer         user_data);
  66
  67 const cairo_path_t *adg_trail_get_cairo_path    (AdgTrail        *trail);
  68 CpmlPath *          adg_trail_cpml_path         (AdgTrail        *trail);
  69 gboolean            adg_trail_put_segment       (AdgTrail        *trail,
  70                                                  guint            n_segment,
  71                                                  AdgSegment      *segment);
  72 const CpmlExtents * adg_trail_get_extents       (AdgTrail        *trail);
  73 void                adg_trail_dump              (AdgTrail        *trail);
  74
  75 G_END_DECLS
  76
  77
  78 #endif /* __ADG_TRAIL_H__ */