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C/C++ Source or Header  |  1999-07-16  |  2.8 KB  |  92 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 Library 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.  * Library General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU Library 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 1997-1999.  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/gtkdata.h>
  33.  
  34.  
  35. #ifdef __cplusplus
  36. extern "C" {
  37. #endif /* __cplusplus */
  38.  
  39.  
  40. #define GTK_TYPE_ADJUSTMENT                  (gtk_adjustment_get_type ())
  41. #define GTK_ADJUSTMENT(obj)                  (GTK_CHECK_CAST ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustment))
  42. #define GTK_ADJUSTMENT_CLASS(klass)          (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
  43. #define GTK_IS_ADJUSTMENT(obj)               (GTK_CHECK_TYPE ((obj), GTK_TYPE_ADJUSTMENT))
  44. #define GTK_IS_ADJUSTMENT_CLASS(klass)       (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ADJUSTMENT))
  45.  
  46.  
  47. typedef struct _GtkAdjustment        GtkAdjustment;
  48. typedef struct _GtkAdjustmentClass  GtkAdjustmentClass;
  49.  
  50. struct _GtkAdjustment
  51. {
  52.   GtkData data;
  53.   
  54.   gfloat lower;
  55.   gfloat upper;
  56.   gfloat value;
  57.   gfloat step_increment;
  58.   gfloat page_increment;
  59.   gfloat page_size;
  60. };
  61.  
  62. struct _GtkAdjustmentClass
  63. {
  64.   GtkDataClass parent_class;
  65.   
  66.   void (* changed)     (GtkAdjustment *adjustment);
  67.   void (* value_changed) (GtkAdjustment *adjustment);
  68. };
  69.  
  70.  
  71. GtkType       gtk_adjustment_get_type        (void);
  72. GtkObject* gtk_adjustment_new            (gfloat          value,
  73.                          gfloat          lower,
  74.                          gfloat          upper,
  75.                          gfloat          step_increment,
  76.                          gfloat          page_increment,
  77.                          gfloat          page_size);
  78. void       gtk_adjustment_changed        (GtkAdjustment     *adjustment);
  79. void       gtk_adjustment_value_changed        (GtkAdjustment     *adjustment);
  80. void       gtk_adjustment_clamp_page        (GtkAdjustment     *adjustment,
  81.                          gfloat          lower,
  82.                          gfloat          upper);
  83. void       gtk_adjustment_set_value        (GtkAdjustment     *adjustment,
  84.                          gfloat          value);
  85.  
  86. #ifdef __cplusplus
  87. }
  88. #endif /* __cplusplus */
  89.  
  90.  
  91. #endif /* __GTK_ADJUSTMENT_H__ */
  92.