adg/adg-entity.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_ENTITY_H__
  22 #define __ADG_ENTITY_H__
  23
  24 #include <adg/adg-util.h>
  25 #include <adg/adg-context.h>
  26 #include <adg/adg-matrix.h>
  27
  28
  29 G_BEGIN_DECLS
  30
  31 #define ADG_TYPE_ENTITY             (adg_entity_get_type ())
  32 #define ADG_ENTITY(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_ENTITY, AdgEntity))
  33 #define ADG_ENTITY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_ENTITY, AdgEntityClass))
  34 #define ADG_IS_ENTITY(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_ENTITY))
  35 #define ADG_IS_ENTITY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_ENTITY))
  36 #define ADG_ENTITY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_ENTITY, AdgEntityClass))
  37
  38
  39 typedef struct _AdgEntity        AdgEntity;
  40 typedef struct _AdgEntityClass   AdgEntityClass;
  41
  42 ADG_FORWARD_DECL(AdgCanvas);
  43
  44
  45 struct _AdgEntity {
  46     /*< private >*/
  47     GInitiallyUnowned    parent;
  48     gpointer             data;
  49 };
  50
  51 struct _AdgEntityClass {
  52     /*< private >*/
  53     GInitiallyUnownedClass parent_class;
  54
  55     /*< public >*/
  56     /* Signals */
  57     void                (*parent_set)           (AdgEntity      *entity,
  58                                                  AdgEntity      *old_parent);
  59     void                (*context_set)          (AdgEntity      *entity,
  60                                                  AdgContext     *old_context);
  61
  62     /* Virtual Table */
  63     gboolean            (*invalidate)           (AdgEntity      *entity);
  64     gboolean            (*render)               (AdgEntity      *entity,
  65                                                  cairo_t        *cr);
  66 };
  67
  68
  69 GType           adg_entity_get_type             (void) G_GNUC_CONST;
  70 AdgCanvas *     adg_entity_get_canvas           (AdgEntity       *entity);
  71
  72 AdgEntity *     adg_entity_get_parent           (AdgEntity       *entity);
  73 void            adg_entity_set_parent           (AdgEntity       *entity,
  74                                                  AdgEntity       *parent);
  75 AdgContext *    adg_entity_context              (AdgEntity       *entity);
  76 AdgContext *    adg_entity_get_context          (AdgEntity       *entity);
  77 void            adg_entity_set_context          (AdgEntity       *entity,
  78                                                  AdgContext      *context);
  79 gboolean        adg_entity_get_rendered         (AdgEntity       *entity);
  80 void            adg_entity_set_rendered         (AdgEntity       *entity,
  81                                                  gboolean         rendered);
  82 void            adg_entity_get_global_map       (AdgEntity       *entity,
  83                                                  AdgMatrix       *map);
  84 void            adg_entity_set_global_map       (AdgEntity       *entity,
  85                                                  const AdgMatrix *map);
  86 void            adg_entity_get_local_map        (AdgEntity       *entity,
  87                                                  AdgMatrix       *map);
  88 void            adg_entity_set_local_map        (AdgEntity       *entity,
  89                                                  const AdgMatrix *map);
  90 void            adg_entity_get_global_matrix    (AdgEntity       *entity,
  91                                                  AdgMatrix       *matrix);
  92 void            adg_entity_get_local_matrix     (AdgEntity       *entity,
  93                                                  AdgMatrix       *matrix);
  94 AdgStyle *      adg_entity_get_style            (AdgEntity       *entity,
  95                                                  AdgStyleSlot     style_slot);
  96 void            adg_entity_apply                (AdgEntity       *entity,
  97                                                  AdgStyleSlot     style_slot,
  98                                                  cairo_t         *cr);
  99 void            adg_entity_invalidate           (AdgEntity       *entity);
 100 void            adg_entity_render               (AdgEntity       *entity,
 101                                                  cairo_t         *cr);
 102
 103 G_END_DECLS
 104
 105
 106 #endif /* __ADG_ENTITY_H__ */