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 #include <adg/adg-enums.h>
  28
  29
  30 G_BEGIN_DECLS
  31
  32 #define ADG_TYPE_ENTITY             (adg_entity_get_type ())
  33 #define ADG_ENTITY(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_ENTITY, AdgEntity))
  34 #define ADG_ENTITY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_ENTITY, AdgEntityClass))
  35 #define ADG_IS_ENTITY(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_ENTITY))
  36 #define ADG_IS_ENTITY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_ENTITY))
  37 #define ADG_ENTITY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_ENTITY, AdgEntityClass))
  38
  39
  40 typedef struct _AdgEntity        AdgEntity;
  41 typedef struct _AdgEntityClass   AdgEntityClass;
  42
  43 ADG_FORWARD_DECL(AdgCanvas);
  44
  45
  46 struct _AdgEntity {
  47     /*< private >*/
  48     GInitiallyUnowned    parent;
  49     gpointer             data;
  50 };
  51
  52 struct _AdgEntityClass {
  53     /*< private >*/
  54     GInitiallyUnownedClass parent_class;
  55
  56     /*< public >*/
  57     /* Signals */
  58     void                (*parent_set)           (AdgEntity      *entity,
  59                                                  AdgEntity      *old_parent);
  60     void                (*context_set)          (AdgEntity      *entity,
  61                                                  AdgContext     *old_context);
  62
  63     /* Virtual Table */
  64     gboolean            (*invalidate)           (AdgEntity      *entity);
  65     gboolean            (*render)               (AdgEntity      *entity,
  66                                                  cairo_t        *cr);
  67 };
  68
  69
  70 GType           adg_entity_get_type             (void) G_GNUC_CONST;
  71 AdgCanvas *     adg_entity_get_canvas           (AdgEntity       *entity);
  72
  73 AdgEntity *     adg_entity_get_parent           (AdgEntity       *entity);
  74 void            adg_entity_set_parent           (AdgEntity       *entity,
  75                                                  AdgEntity       *parent);
  76 AdgContext *    adg_entity_context              (AdgEntity       *entity);
  77 AdgContext *    adg_entity_get_context          (AdgEntity       *entity);
  78 void            adg_entity_set_context          (AdgEntity       *entity,
  79                                                  AdgContext      *context);
  80 gboolean        adg_entity_get_rendered         (AdgEntity       *entity);
  81 void            adg_entity_set_rendered         (AdgEntity       *entity,
  82                                                  gboolean         rendered);
  83 void            adg_entity_get_global_map       (AdgEntity       *entity,
  84                                                  AdgMatrix       *map);
  85 void            adg_entity_set_global_map       (AdgEntity       *entity,
  86                                                  const AdgMatrix *map);
  87 void            adg_entity_transform_global_map (AdgEntity       *entity,
  88                                                  const AdgMatrix *transformation);
  89 void            adg_entity_get_global_matrix    (AdgEntity       *entity,
  90                                                  AdgMatrix       *matrix);
  91 void            adg_entity_get_local_map        (AdgEntity       *entity,
  92                                                  AdgMatrix       *map);
  93 void            adg_entity_set_local_map        (AdgEntity       *entity,
  94                                                  const AdgMatrix *map);
  95 void            adg_entity_transform_local_map  (AdgEntity       *entity,
  96                                                  const AdgMatrix *transformation);
  97 void            adg_entity_get_local_matrix     (AdgEntity       *entity,
  98                                                  AdgMatrix       *matrix);
  99 AdgStyle *      adg_entity_get_style            (AdgEntity       *entity,
 100                                                  AdgStyleSlot     style_slot);
 101 void            adg_entity_apply                (AdgEntity       *entity,
 102                                                  AdgStyleSlot     style_slot,
 103                                                  cairo_t         *cr);
 104 void            adg_entity_apply_font           (AdgEntity       *entity,
 105                                                  AdgFontStyleId   font_id,
 106                                                  cairo_t         *cr);
 107 void            adg_entity_invalidate           (AdgEntity       *entity);
 108 void            adg_entity_render               (AdgEntity       *entity,
 109                                                  cairo_t         *cr);
 110
 111 G_END_DECLS
 112
 113
 114 #endif /* __ADG_ENTITY_H__ */