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/*
* $Id: gwyruler.h 20678 2017-12-18 18:26:55Z yeti-dn $
* Copyright (C) 2003 David Necas (Yeti), Petr Klapetek.
* E-mail: yeti@gwyddion.net, klapetek@gwyddion.net.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
* GwyRuler is based on GtkRuler (instead of subclassing) since GtkRuler
* can be subject of removal from Gtk+ in some unspecified point in the future.
*/
#ifndef __GWY_RULER_H__
#define __GWY_RULER_H__
#include <gdk/gdk.h>
#include <gtk/gtkwidget.h>
#include <libgwyddion/gwysiunit.h>
#include <libgwydgets/gwydgetenums.h>
G_BEGIN_DECLS
#define GWY_TYPE_RULER (gwy_ruler_get_type())
#define GWY_RULER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GWY_TYPE_RULER, GwyRuler))
#define GWY_RULER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GWY_TYPE_RULER, GwyRulerClass))
#define GWY_IS_RULER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GWY_TYPE_RULER))
#define GWY_IS_RULER_CLASS(klass)(G_TYPE_CHECK_CLASS_TYPE((klass), GWY_TYPE_RULER))
#define GWY_RULER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GWY_TYPE_RULER, GwyRulerClass))
typedef struct _GwyRuler GwyRuler;
typedef struct _GwyRulerClass GwyRulerClass;
struct _GwyRuler {
GtkWidget widget;
PangoLayout *layout;
GdkPixmap *backing_store;
GdkGC *non_gr_exp_gc;
gint xsrc, ysrc;
gint hthickness, vthickness, height, pixelsize;
GwySIUnit *units;
GwyUnitsPlacement units_placement;
gdouble lower; /* The upper limit of the ruler (in physical units) */
gdouble upper; /* The lower limit of the ruler */
gdouble position; /* The position of the mark on the ruler */
gdouble max_size; /* The maximum size of the ruler */
GwySIValueFormat *vformat;
gpointer reserved2;
};
struct _GwyRulerClass {
GtkWidgetClass parent_class;
/* Virtual methods */
void (*prepare_sizes) (GwyRuler *ruler);
void (*draw_frame) (GwyRuler *ruler);
void (*draw_layout) (GwyRuler *ruler,
gint hpos,
gint vpos);
void (*draw_tick) (GwyRuler *ruler,
gint pos,
gint length);
void (*draw_pos) (GwyRuler *ruler);
void (*reserved1)(void);
void (*reserved2)(void);
};
GType gwy_ruler_get_type (void) G_GNUC_CONST;
void gwy_ruler_set_range (GwyRuler *ruler,
gdouble lower,
gdouble upper,
gdouble position,
gdouble max_size);
void gwy_ruler_draw_pos (GwyRuler *ruler);
void gwy_ruler_get_range (GwyRuler *ruler,
gdouble *lower,
gdouble *upper,
gdouble *position,
gdouble *max_size);
void gwy_ruler_set_si_unit (GwyRuler *ruler,
GwySIUnit *units);
GwySIUnit* gwy_ruler_get_si_unit (GwyRuler *ruler);
GwyUnitsPlacement gwy_ruler_get_units_placement (GwyRuler *ruler);
void gwy_ruler_set_units_placement (GwyRuler *ruler,
GwyUnitsPlacement placement);
G_END_DECLS
#endif /* __GWY_RULER_H__ */
/* vim: set cin et ts=4 sw=4 cino=>1s,e0,n0,f0,{0,}0,^0,\:1s,=0,g1s,h0,t0,+1s,c3,(0,u0 : */
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