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-line-style.h>
  28 #include <adg/adg-font-style.h>
  29 #include <adg/adg-arrow-style.h>
  30 #include <adg/adg-dim-style.h>
  31
  32
  33 G_BEGIN_DECLS
  34
  35 #define ADG_TYPE_ENTITY             (adg_entity_get_type ())
  36 #define ADG_ENTITY(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_ENTITY, AdgEntity))
  37 #define ADG_ENTITY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_ENTITY, AdgEntityClass))
  38 #define ADG_IS_ENTITY(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_ENTITY))
  39 #define ADG_IS_ENTITY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_ENTITY))
  40 #define ADG_ENTITY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_ENTITY, AdgEntityClass))
  41
  42
  43 typedef struct _AdgEntity        AdgEntity;
  44 typedef struct _AdgEntityClass   AdgEntityClass;
  45
  46 ADG_FORWARD_DECL(AdgCanvas);
  47 ADG_FORWARD_DECL(AdgContainer);
  48
  49
  50 struct _AdgEntity {
  51     /*< private >*/
  52     GInitiallyUnowned    parent;
  53     gpointer             data;
  54 };
  55
  56 struct _AdgEntityClass {
  57     /*< private >*/
  58     GInitiallyUnownedClass parent_class;
  59
  60     /*< public >*/
  61     /* Signals */
  62     void                (*parent_set)           (AdgEntity      *entity,
  63                                                  AdgContainer   *old_parent);
  64     void                (*model_matrix_changed) (AdgEntity      *entity,
  65                                                  AdgMatrix      *parent_matrix);
  66     void                (*paper_matrix_changed) (AdgEntity      *entity,
  67                                                  AdgMatrix      *parent_matrix);
  68     void                (*invalidate)           (AdgEntity      *entity);
  69     void                (*render)               (AdgEntity      *entity,
  70                                                  cairo_t        *cr);
  71     /* Virtual Table */
  72     AdgContainer *      (*get_parent)           (AdgEntity      *entity);
  73     void                (*set_parent)           (AdgEntity      *entity,
  74                                                  AdgContainer   *parent);
  75     AdgContext *        (*get_context)          (AdgEntity      *entity);
  76     const AdgMatrix *   (*get_model_matrix)     (AdgEntity      *entity);
  77     const AdgMatrix *   (*get_paper_matrix)     (AdgEntity      *entity);
  78 };
  79
  80
  81 #define ADG_CALLBACK(f)             ((AdgCallback) (f))
  82
  83
  84 typedef void (*AdgCallback)(AdgEntity *entity, cairo_t *cr, gpointer user_data);
  85
  86
  87 GType           adg_entity_get_type             (void) G_GNUC_CONST;
  88 AdgCanvas *     adg_entity_get_canvas           (AdgEntity       *entity);
  89
  90 AdgContainer *  adg_entity_get_parent           (AdgEntity       *entity);
  91 void            adg_entity_set_parent           (AdgEntity       *entity,
  92                                                  AdgContainer    *parent);
  93 void            adg_entity_unparent             (AdgEntity       *entity);
  94 void            adg_entity_reparent             (AdgEntity       *entity,
  95                                                  AdgContainer    *parent);
  96 AdgContext *    adg_entity_get_context          (AdgEntity       *entity);
  97 void            adg_entity_set_context          (AdgEntity       *entity,
  98                                                  AdgContext      *context);
  99 void            adg_entity_get_global_map       (AdgEntity       *entity,
 100                                                  AdgMatrix       *map);
 101 void            adg_entity_set_global_map       (AdgEntity       *entity,
 102                                                  const AdgMatrix *map);
 103 void            adg_entity_get_local_map        (AdgEntity       *entity,
 104                                                  AdgMatrix       *map);
 105 void            adg_entity_set_local_map        (AdgEntity       *entity,
 106                                                  const AdgMatrix *map);
 107 void            adg_entity_get_global_matrix    (AdgEntity       *entity,
 108                                                  AdgMatrix       *matrix);
 109 void            adg_entity_get_local_matrix     (AdgEntity       *entity,
 110                                                  AdgMatrix       *matrix);
 111 const AdgMatrix*adg_entity_get_model_matrix     (AdgEntity       *entity);
 112 const AdgMatrix*adg_entity_get_paper_matrix     (AdgEntity       *entity);
 113 gboolean        adg_entity_build_paper2model    (AdgEntity       *entity,
 114                                                  AdgMatrix       *matrix);
 115 gboolean        adg_entity_build_model2paper    (AdgEntity       *entity,
 116                                                  AdgMatrix       *matrix);
 117 void            adg_entity_model_matrix_changed (AdgEntity       *entity,
 118                                                  const AdgMatrix *parent_matrix);
 119 void            adg_entity_paper_matrix_changed (AdgEntity       *entity,
 120                                                  const AdgMatrix *parent_matrix);
 121 AdgStyle *      adg_entity_get_style            (AdgEntity       *entity,
 122                                                  AdgStyleSlot     style_slot);
 123 void            adg_entity_apply                (AdgEntity       *entity,
 124                                                  AdgStyleSlot     style_slot,
 125                                                  cairo_t         *cr);
 126 gboolean        adg_entity_model_matrix_applied (AdgEntity       *entity);
 127 gboolean        adg_entity_paper_matrix_applied (AdgEntity       *entity);
 128 gboolean        adg_entity_model_applied        (AdgEntity       *entity);
 129 void            adg_entity_invalidate           (AdgEntity       *entity);
 130 void            adg_entity_render               (AdgEntity       *entity,
 131                                                  cairo_t         *cr);
 132
 133 G_END_DECLS
 134
 135
 136 #endif /* __ADG_ENTITY_H__ */