adg/adg-widget.h

   1 /* ADG - Automatic Drawing Generation
   2  * Copyright (C) 2007,2008,2009,2010  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_WIDGET_H__
  22 #define __ADG_WIDGET_H__
  23
  24 #include <gtk/gtk.h>
  25
  26
  27 G_BEGIN_DECLS
  28
  29 #define ADG_TYPE_WIDGET             (adg_widget_get_type())
  30 #define ADG_WIDGET(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj), ADG_TYPE_WIDGET, AdgWidget))
  31 #define ADG_WIDGET_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), ADG_TYPE_WIDGET, AdgWidgetClass))
  32 #define ADG_IS_WIDGET(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj), ADG_TYPE_WIDGET))
  33 #define ADG_IS_WIDGET_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), ADG_TYPE_WIDGET))
  34 #define ADG_WIDGET_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), ADG_TYPE_WIDGET, AdgWidgetClass))
  35
  36 typedef struct _AdgWidget        AdgWidget;
  37 typedef struct _AdgWidgetClass   AdgWidgetClass;
  38
  39 struct _AdgWidget {
  40     /*< private >*/
  41     GtkDrawingArea       parent;
  42     gpointer             data;
  43 };
  44
  45 struct _AdgWidgetClass {
  46     /*< private >*/
  47     GtkDrawingAreaClass  parent_class;
  48     /*< public >*/
  49     /* Virtual Table */
  50     void                (*canvas_changed)       (AdgWidget      *widget);
  51 };
  52
  53
  54 GType                   adg_widget_get_type     (void) G_GNUC_CONST;
  55
  56 GtkWidget *             adg_widget_new          (void);
  57 GtkWidget *             adg_widget_new_with_canvas
  58                                                 (AdgCanvas      *canvas);
  59
  60 void                    adg_widget_set_canvas   (AdgWidget      *widget,
  61                                                  AdgCanvas      *canvas);
  62 AdgCanvas *             adg_widget_get_canvas   (AdgWidget      *widget);
  63 void                    adg_widget_set_factor   (AdgWidget      *widget,
  64                                                  gdouble         factor);
  65 gdouble                 adg_widget_get_factor   (AdgWidget      *widget);
  66
  67 G_END_DECLS
  68
  69
  70 #endif /* __ADG_WIDGET_H__ */