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_SCALE_H__ 28 #define __GTK_SCALE_H__ 29 30 31 #if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION) 32 #error "Only <gtk/gtk.h> can be included directly." 33 #endif 34 35 #include <gtk/gtkrange.h> 36 37 38 G_BEGIN_DECLS 39 40 #define GTK_TYPE_SCALE (gtk_scale_get_type ()) 41 #define GTK_SCALE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SCALE, GtkScale)) 42 #define GTK_SCALE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_SCALE, GtkScaleClass)) 43 #define GTK_IS_SCALE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_SCALE)) 44 #define GTK_IS_SCALE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_SCALE)) 45 #define GTK_SCALE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_SCALE, GtkScaleClass)) 46 47 48 typedef struct _GtkScale GtkScale; 49 typedef struct _GtkScaleClass GtkScaleClass; 50 51 struct _GtkScale 52 { 53 GtkRange range; 54 55 gint GSEAL (digits); 56 guint GSEAL (draw_value) : 1; 57 guint GSEAL (value_pos) : 2; 58 }; 59 60 struct _GtkScaleClass 61 { 62 GtkRangeClass parent_class; 63 64 gchar* (* format_value) (GtkScale *scale, 65 gdouble value); 66 67 void (* draw_value) (GtkScale *scale); 68 69 void (* get_layout_offsets) (GtkScale *scale, 70 gint *x, 71 gint *y); 72 73 /* Padding for future expansion */ 74 void (*_gtk_reserved1) (void); 75 void (*_gtk_reserved2) (void); 76 void (*_gtk_reserved3) (void); 77 }; 78 79 GType gtk_scale_get_type (void) G_GNUC_CONST; 80 void gtk_scale_set_digits (GtkScale *scale, 81 gint digits); 82 gint gtk_scale_get_digits (GtkScale *scale); 83 void gtk_scale_set_draw_value (GtkScale *scale, 84 gboolean draw_value); 85 gboolean gtk_scale_get_draw_value (GtkScale *scale); 86 void gtk_scale_set_value_pos (GtkScale *scale, 87 GtkPositionType pos); 88 GtkPositionType gtk_scale_get_value_pos (GtkScale *scale); 89 90 PangoLayout * gtk_scale_get_layout (GtkScale *scale); 91 void gtk_scale_get_layout_offsets (GtkScale *scale, 92 gint *x, 93 gint *y); 94 95 void gtk_scale_add_mark (GtkScale *scale, 96 gdouble value, 97 GtkPositionType position, 98 const gchar *markup); 99 void gtk_scale_clear_marks (GtkScale *scale); 100 101 /* internal API */ 102 void _gtk_scale_clear_layout (GtkScale *scale); 103 void _gtk_scale_get_value_size (GtkScale *scale, 104 gint *width, 105 gint *height); 106 gchar * _gtk_scale_format_value (GtkScale *scale, 107 gdouble value); 108 109 G_END_DECLS 110 111 #endif /* __GTK_SCALE_H__ */ 112