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C/C++ Source or Header  |  2006-04-25  |  3.1 KB  |  93 lines
  1. /* GTK - The GIMP 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. #ifndef __GTK_ADJUSTMENT_H__
  28. #define __GTK_ADJUSTMENT_H__
  29.  
  30.  
  31. #include <gdk/gdk.h>
  32. #include <gtk/gtkobject.h>
  33.  
  34. G_BEGIN_DECLS
  35.  
  36. #define GTK_TYPE_ADJUSTMENT                  (gtk_adjustment_get_type ())
  37. #define GTK_ADJUSTMENT(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustment))
  38. #define GTK_ADJUSTMENT_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
  39. #define GTK_IS_ADJUSTMENT(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ADJUSTMENT))
  40. #define GTK_IS_ADJUSTMENT_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ADJUSTMENT))
  41. #define GTK_ADJUSTMENT_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
  42.  
  43.  
  44. typedef struct _GtkAdjustment        GtkAdjustment;
  45. typedef struct _GtkAdjustmentClass  GtkAdjustmentClass;
  46.  
  47. struct _GtkAdjustment
  48. {
  49.   GtkObject parent_instance;
  50.   
  51.   gdouble lower;
  52.   gdouble upper;
  53.   gdouble value;
  54.   gdouble step_increment;
  55.   gdouble page_increment;
  56.   gdouble page_size;
  57. };
  58.  
  59. struct _GtkAdjustmentClass
  60. {
  61.   GtkObjectClass parent_class;
  62.   
  63.   void (* changed)     (GtkAdjustment *adjustment);
  64.   void (* value_changed) (GtkAdjustment *adjustment);
  65.   
  66.   /* Padding for future expansion */
  67.   void (*_gtk_reserved1) (void);
  68.   void (*_gtk_reserved2) (void);
  69.   void (*_gtk_reserved3) (void);
  70.   void (*_gtk_reserved4) (void);
  71. };
  72.  
  73.  
  74. GType       gtk_adjustment_get_type        (void) G_GNUC_CONST;
  75. GtkObject* gtk_adjustment_new            (gdouble      value,
  76.                          gdouble      lower,
  77.                          gdouble      upper,
  78.                          gdouble      step_increment,
  79.                          gdouble      page_increment,
  80.                          gdouble      page_size);
  81. void       gtk_adjustment_changed        (GtkAdjustment     *adjustment);
  82. void       gtk_adjustment_value_changed        (GtkAdjustment     *adjustment);
  83. void       gtk_adjustment_clamp_page        (GtkAdjustment     *adjustment,
  84.                          gdouble      lower,
  85.                          gdouble      upper);
  86. gdouble       gtk_adjustment_get_value        (GtkAdjustment   *adjustment);
  87. void       gtk_adjustment_set_value        (GtkAdjustment     *adjustment,
  88.                          gdouble      value);
  89.  
  90. G_END_DECLS
  91.  
  92. #endif /* __GTK_ADJUSTMENT_H__ */
  93.