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-context.h>
  25 #include <adg/adg-matrix.h>
  26 #include <adg/adg-point.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 /* Forward declarations */
  36 typedef struct _AdgCanvas       AdgCanvas;
  37 typedef struct _AdgContainer    AdgContainer;
  38
  39
  40 #define ADG_TYPE_ENTITY             (adg_entity_get_type ())
  41 #define ADG_ENTITY(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_ENTITY, AdgEntity))
  42 #define ADG_ENTITY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_ENTITY, AdgEntityClass))
  43 #define ADG_IS_ENTITY(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_ENTITY))
  44 #define ADG_IS_ENTITY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_ENTITY))
  45 #define ADG_ENTITY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_ENTITY, AdgEntityClass))
  46
  47
  48 typedef struct _AdgEntity        AdgEntity;
  49 typedef struct _AdgEntityClass   AdgEntityClass;
  50
  51
  52 struct _AdgEntity {
  53     /*< private >*/
  54     GInitiallyUnowned    parent;
  55     gpointer             data;
  56 };
  57
  58 struct _AdgEntityClass {
  59     /*< private >*/
  60     GInitiallyUnownedClass parent_class;
  61
  62     /*< public >*/
  63     /* Signals */
  64     void                (*parent_set)           (AdgEntity      *entity,
  65                                                  AdgContainer   *old_parent);
  66     void                (*model_matrix_changed) (AdgEntity      *entity,
  67                                                  AdgMatrix      *parent_matrix);
  68     void                (*paper_matrix_changed) (AdgEntity      *entity,
  69                                                  AdgMatrix      *parent_matrix);
  70     void                (*invalidate)           (AdgEntity      *entity);
  71     void                (*render)               (AdgEntity      *entity,
  72                                                  cairo_t        *cr);
  73     /* Virtual Table */
  74     AdgContainer *      (*get_parent)           (AdgEntity      *entity);
  75     void                (*set_parent)           (AdgEntity      *entity,
  76                                                  AdgContainer   *parent);
  77     AdgContext *        (*get_context)          (AdgEntity      *entity);
  78     const AdgMatrix *   (*get_model_matrix)     (AdgEntity      *entity);
  79     const AdgMatrix *   (*get_paper_matrix)     (AdgEntity      *entity);
  80 };
  81
  82
  83 #define ADG_CALLBACK(f)             ((AdgCallback) (f))
  84
  85
  86 typedef void (*AdgCallback)(AdgEntity *entity, cairo_t *cr, gpointer user_data);
  87
  88
  89 GType           adg_entity_get_type             (void) G_GNUC_CONST;
  90 AdgCanvas *     adg_entity_get_canvas           (AdgEntity      *entity);
  91
  92 AdgContainer *  adg_entity_get_parent           (AdgEntity      *entity);
  93 void            adg_entity_set_parent           (AdgEntity      *entity,
  94                                                  AdgContainer   *parent);
  95 void            adg_entity_unparent             (AdgEntity      *entity);
  96 void            adg_entity_reparent             (AdgEntity      *entity,
  97                                                  AdgContainer   *parent);
  98 AdgContext *    adg_entity_get_context          (AdgEntity      *entity);
  99 void            adg_entity_set_context          (AdgEntity      *entity,
 100                                                  AdgContext     *context);
 101 const AdgMatrix*adg_entity_get_model_matrix     (AdgEntity      *entity);
 102 const AdgMatrix*adg_entity_get_paper_matrix     (AdgEntity      *entity);
 103 gboolean        adg_entity_build_paper2model    (AdgEntity      *entity,
 104                                                  AdgMatrix      *matrix);
 105 gboolean        adg_entity_build_model2paper    (AdgEntity      *entity,
 106                                                  AdgMatrix      *matrix);
 107 void            adg_entity_scale_to_model       (AdgEntity      *entity,
 108                                                  cairo_t        *cr);
 109 void            adg_entity_scale_to_paper       (AdgEntity      *entity,
 110                                                  cairo_t        *cr);
 111 void            adg_entity_model_matrix_changed (AdgEntity      *entity,
 112                                                  const AdgMatrix*parent_matrix);
 113 void            adg_entity_paper_matrix_changed (AdgEntity      *entity,
 114                                                  const AdgMatrix*parent_matrix);
 115 AdgStyle *      adg_entity_get_style            (AdgEntity      *entity,
 116                                                  AdgStyleSlot    style_slot);
 117 void            adg_entity_apply                (AdgEntity      *entity,
 118                                                  AdgStyleSlot    style_slot,
 119                                                  cairo_t        *cr);
 120 void            adg_entity_point_to_pair        (AdgEntity      *entity,
 121                                                  const AdgPoint *point,
 122                                                  AdgPair        *pair,
 123                                                  cairo_t        *cr);
 124 void            adg_entity_point_to_model_pair  (AdgEntity      *entity,
 125                                                  const AdgPoint *point,
 126                                                  AdgPair        *pair);
 127 void            adg_entity_point_to_paper_pair  (AdgEntity      *entity,
 128                                                  const AdgPoint *point,
 129                                                  AdgPair        *pair);
 130 gboolean        adg_entity_model_matrix_applied (AdgEntity      *entity);
 131 gboolean        adg_entity_paper_matrix_applied (AdgEntity      *entity);
 132 gboolean        adg_entity_model_applied        (AdgEntity      *entity);
 133 void            adg_entity_invalidate           (AdgEntity      *entity);
 134 void            adg_entity_render               (AdgEntity      *entity,
 135                                                  cairo_t        *cr);
 136
 137 G_END_DECLS
 138
 139
 140 #endif /* __ADG_ENTITY_H__ */