1 /* GTK - The GTK+ Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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.
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.
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.
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/.
28 * NOTE this widget is considered too specialized/little-used for
29 * GTK+, and will in the future be moved to some other package. If
30 * your application needs this widget, feel free to use it, as the
31 * widget does work and is useful in some applications; it's just not
32 * of general interest. However, we are not accepting new features for
33 * the widget, and it will eventually move out of the GTK+
37 #if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
38 #error "Only <gtk/gtk.h> can be included directly."
41 #ifndef __GTK_RULER_H__
42 #define __GTK_RULER_H__
46 #include <gtk/gtkwidget.h>
51 #define GTK_TYPE_RULER (gtk_ruler_get_type ())
52 #define GTK_RULER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_RULER, GtkRuler))
53 #define GTK_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_RULER, GtkRulerClass))
54 #define GTK_IS_RULER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_RULER))
55 #define GTK_IS_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_RULER))
56 #define GTK_RULER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_RULER, GtkRulerClass))
59 typedef struct _GtkRuler GtkRuler;
60 typedef struct _GtkRulerClass GtkRulerClass;
61 typedef struct _GtkRulerMetric GtkRulerMetric;
63 /* All distances below are in 1/72nd's of an inch. (According to
64 * Adobe that's a point, but points are really 1/72.27 in.)
70 GdkPixmap *GSEAL (backing_store);
71 GdkGC *GSEAL (non_gr_exp_gc); /* unused */
72 GtkRulerMetric *GSEAL (metric);
75 gint GSEAL (slider_size);
77 /* The upper limit of the ruler (in points) */
78 gdouble GSEAL (lower);
79 /* The lower limit of the ruler */
80 gdouble GSEAL (upper);
81 /* The position of the mark on the ruler */
82 gdouble GSEAL (position);
83 /* The maximum size of the ruler */
84 gdouble GSEAL (max_size);
89 GtkWidgetClass parent_class;
91 void (* draw_ticks) (GtkRuler *ruler);
92 void (* draw_pos) (GtkRuler *ruler);
94 /* Padding for future expansion */
95 void (*_gtk_reserved1) (void);
96 void (*_gtk_reserved2) (void);
97 void (*_gtk_reserved3) (void);
98 void (*_gtk_reserved4) (void);
101 struct _GtkRulerMetric
105 /* This should be points_per_unit. This is the size of the unit
106 * in 1/72nd's of an inch and has nothing to do with screen pixels */
107 gdouble pixels_per_unit;
108 gdouble ruler_scale[10];
109 gint subdivide[5]; /* five possible modes of subdivision */
113 GType gtk_ruler_get_type (void) G_GNUC_CONST;
114 void gtk_ruler_set_metric (GtkRuler *ruler,
115 GtkMetricType metric);
116 void gtk_ruler_set_range (GtkRuler *ruler,
121 void gtk_ruler_draw_ticks (GtkRuler *ruler);
122 void gtk_ruler_draw_pos (GtkRuler *ruler);
124 GtkMetricType gtk_ruler_get_metric (GtkRuler *ruler);
125 void gtk_ruler_get_range (GtkRuler *ruler,
133 #endif /* __GTK_RULER_H__ */