1 /* GTK - The GIMP 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 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.
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.
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.
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/.
27 #ifndef __GTK_RULER_H__
28 #define __GTK_RULER_H__
32 #include <gtk/gtkwidget.h>
37 #endif /* __cplusplus */
40 #define GTK_TYPE_RULER (gtk_ruler_get_type ())
41 #define GTK_RULER(obj) (GTK_CHECK_CAST ((obj), GTK_TYPE_RULER, GtkRuler))
42 #define GTK_RULER_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_RULER, GtkRulerClass))
43 #define GTK_IS_RULER(obj) (GTK_CHECK_TYPE ((obj), GTK_TYPE_RULER))
44 #define GTK_IS_RULER_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_RULER))
46 typedef struct _GtkRuler GtkRuler;
47 typedef struct _GtkRulerClass GtkRulerClass;
48 typedef struct _GtkRulerMetric GtkRulerMetric;
50 /* All distances below are in 1/72nd's of an inch. (According to
51 * Adobe that's a point, but points are really 1/72.27 in.)
57 GdkPixmap *backing_store;
59 GtkRulerMetric *metric;
63 /* The upper limit of the ruler (in points) */
65 /* The lower limit of the ruler */
67 /* The position of the mark on the ruler */
69 /* The maximum size of the ruler */
75 GtkWidgetClass parent_class;
77 void (* draw_ticks) (GtkRuler *ruler);
78 void (* draw_pos) (GtkRuler *ruler);
81 struct _GtkRulerMetric
85 /* This should be points_per_unit. This is the size of the unit
86 * in 1/72nd's of an inch and has nothing to do with screen pixels */
87 gfloat pixels_per_unit;
88 gfloat ruler_scale[10];
89 gint subdivide[5]; /* five possible modes of subdivision */
93 GtkType gtk_ruler_get_type (void);
94 void gtk_ruler_set_metric (GtkRuler *ruler,
95 GtkMetricType metric);
96 void gtk_ruler_set_range (GtkRuler *ruler,
101 void gtk_ruler_draw_ticks (GtkRuler *ruler);
102 void gtk_ruler_draw_pos (GtkRuler *ruler);
107 #endif /* __cplusplus */
110 #endif /* __GTK_RULER_H__ */