Pileus Git - ~andy/gtk/blob - gtk/gtkadjustment.h

   1 /* GTK - The GTK+ Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   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., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GTK+ Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
  28 #error "Only <gtk/gtk.h> can be included directly."
  29 #endif
  30
  31 #ifndef __GTK_ADJUSTMENT_H__
  32 #define __GTK_ADJUSTMENT_H__
  33
  34
  35 #include <gdk/gdk.h>
  36 #include <gtk/gtkobject.h>
  37
  38 G_BEGIN_DECLS
  39
  40 #define GTK_TYPE_ADJUSTMENT                  (gtk_adjustment_get_type ())
  41 #define GTK_ADJUSTMENT(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustment))
  42 #define GTK_ADJUSTMENT_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
  43 #define GTK_IS_ADJUSTMENT(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ADJUSTMENT))
  44 #define GTK_IS_ADJUSTMENT_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ADJUSTMENT))
  45 #define GTK_ADJUSTMENT_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
  46
  47
  48 typedef struct _GtkAdjustment       GtkAdjustment;
  49 typedef struct _GtkAdjustmentClass  GtkAdjustmentClass;
  50
  51 struct _GtkAdjustment
  52 {
  53   GtkObject parent_instance;
  54
  55   gdouble lower;
  56   gdouble upper;
  57   gdouble value;
  58   gdouble step_increment;
  59   gdouble page_increment;
  60   gdouble page_size;
  61 };
  62
  63 struct _GtkAdjustmentClass
  64 {
  65   GtkObjectClass parent_class;
  66
  67   void (* changed)       (GtkAdjustment *adjustment);
  68   void (* value_changed) (GtkAdjustment *adjustment);
  69
  70   /* Padding for future expansion */
  71   void (*_gtk_reserved1) (void);
  72   void (*_gtk_reserved2) (void);
  73   void (*_gtk_reserved3) (void);
  74   void (*_gtk_reserved4) (void);
  75 };
  76
  77
  78 GType      gtk_adjustment_get_type              (void) G_GNUC_CONST;
  79 GtkObject* gtk_adjustment_new                   (gdouble          value,
  80                                                  gdouble          lower,
  81                                                  gdouble          upper,
  82                                                  gdouble          step_increment,
  83                                                  gdouble          page_increment,
  84                                                  gdouble          page_size);
  85 void       gtk_adjustment_changed               (GtkAdjustment   *adjustment);
  86 void       gtk_adjustment_value_changed         (GtkAdjustment   *adjustment);
  87 void       gtk_adjustment_clamp_page            (GtkAdjustment   *adjustment,
  88                                                  gdouble          lower,
  89                                                  gdouble          upper);
  90 gdouble    gtk_adjustment_get_value             (GtkAdjustment   *adjustment);
  91 void       gtk_adjustment_set_value             (GtkAdjustment   *adjustment,
  92                                                  gdouble          value);
  93
  94 G_END_DECLS
  95
  96 #endif /* __GTK_ADJUSTMENT_H__ */