adg/adg-context.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_CONTEXT_H__
  22 #define __ADG_CONTEXT_H__
  23
  24 #include <adg/adg-style.h>
  25
  26
  27 G_BEGIN_DECLS
  28
  29 #define ADG_TYPE_CONTEXT             (adg_context_get_type ())
  30 #define ADG_CONTEXT(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), ADG_TYPE_CONTEXT, AdgContext))
  31 #define ADG_CONTEXT_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), ADG_TYPE_CONTEXT, AdgContextClass))
  32 #define ADG_IS_CONTEXT(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), ADG_TYPE_CONTEXT))
  33 #define ADG_IS_CONTEXT_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), ADG_TYPE_CONTEXT))
  34 #define ADG_CONTEXT_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), ADG_TYPE_CONTEXT, AdgContextClass))
  35
  36
  37 typedef struct _AdgContext        AdgContext;
  38 typedef struct _AdgContextClass   AdgContextClass;
  39 typedef AdgStyle * (*AdgContextFiller) (AdgStyleClass *style_class, gpointer user_data);
  40
  41 struct _AdgContext {
  42     /*< private >*/
  43     GObject              parent;
  44     gpointer             data;
  45 };
  46
  47 struct _AdgContextClass {
  48     /*< private >*/
  49     GObjectClass         parent_class;
  50 };
  51
  52
  53 GType           adg_context_get_type            (void) G_GNUC_CONST;
  54 AdgStyleSlot    adg_context_get_slot            (GType           type);
  55
  56 AdgContext *    adg_context_new                 (AdgContextFiller context_filler,
  57                                                  gpointer        user_data);
  58 AdgStyle *      adg_context_get_style           (AdgContext     *context,
  59                                                  AdgStyleSlot    slot);
  60 void            adg_context_set_style           (AdgContext     *context,
  61                                                  AdgStyle       *style);
  62
  63
  64 G_END_DECLS
  65
  66
  67 #endif /* __ADG_CONTEXT_H__ */