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

   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/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 #define GTK_ADJUSTMENT_GET_CLASS(obj)        (GTK_CHECK_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   GtkData data;
  54
  55   gfloat lower;
  56   gfloat upper;
  57   gfloat value;
  58   gfloat step_increment;
  59   gfloat page_increment;
  60   gfloat page_size;
  61 };
  62
  63 struct _GtkAdjustmentClass
  64 {
  65   GtkDataClass parent_class;
  66
  67   void (* changed)       (GtkAdjustment *adjustment);
  68   void (* value_changed) (GtkAdjustment *adjustment);
  69 };
  70
  71
  72 GtkType    gtk_adjustment_get_type              (void) G_GNUC_CONST;
  73 GtkObject* gtk_adjustment_new                   (gfloat           value,
  74                                                  gfloat           lower,
  75                                                  gfloat           upper,
  76                                                  gfloat           step_increment,
  77                                                  gfloat           page_increment,
  78                                                  gfloat           page_size);
  79 void       gtk_adjustment_changed               (GtkAdjustment   *adjustment);
  80 void       gtk_adjustment_value_changed         (GtkAdjustment   *adjustment);
  81 void       gtk_adjustment_clamp_page            (GtkAdjustment   *adjustment,
  82                                                  gfloat           lower,
  83                                                  gfloat           upper);
  84 void       gtk_adjustment_set_value             (GtkAdjustment   *adjustment,
  85                                                  gfloat           value);
  86
  87 #ifdef __cplusplus
  88 }
  89 #endif /* __cplusplus */
  90
  91
  92 #endif /* __GTK_ADJUSTMENT_H__ */