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26490a2dd7
Bug 565656 – Add marks to scales
* gtk/gtkrange.[hc]: Add internal api to define 'stop values'
that have a little resistance when dragging the slider over it.
* gtk/gtk.symbols:
* gtk/gtkscale.[hc] (gtk_scale_add_mark): New function to add
a 'mark' to a scale, which will draws a tick, plus optionally
some text, and makes the value a stop value.
(gtk_scale_clear_values): Removes all marks.
* tests/testscale.c: Test for marks on scales
* tests/Makefile.am: Integrate it
svn path=/trunk/; revision=22149
112 lines
4.3 KiB
C
112 lines
4.3 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#ifndef __GTK_SCALE_H__
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#define __GTK_SCALE_H__
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#include <gtk/gtkrange.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_SCALE (gtk_scale_get_type ())
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#define GTK_SCALE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SCALE, GtkScale))
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#define GTK_SCALE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_SCALE, GtkScaleClass))
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#define GTK_IS_SCALE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_SCALE))
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#define GTK_IS_SCALE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_SCALE))
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#define GTK_SCALE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_SCALE, GtkScaleClass))
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typedef struct _GtkScale GtkScale;
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typedef struct _GtkScaleClass GtkScaleClass;
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struct _GtkScale
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{
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GtkRange range;
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gint GSEAL (digits);
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guint GSEAL (draw_value) : 1;
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guint GSEAL (value_pos) : 2;
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};
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struct _GtkScaleClass
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{
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GtkRangeClass parent_class;
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gchar* (* format_value) (GtkScale *scale,
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gdouble value);
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void (* draw_value) (GtkScale *scale);
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void (* get_layout_offsets) (GtkScale *scale,
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gint *x,
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gint *y);
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/* Padding for future expansion */
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void (*_gtk_reserved1) (void);
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void (*_gtk_reserved2) (void);
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void (*_gtk_reserved3) (void);
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};
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GType gtk_scale_get_type (void) G_GNUC_CONST;
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void gtk_scale_set_digits (GtkScale *scale,
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gint digits);
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gint gtk_scale_get_digits (GtkScale *scale);
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void gtk_scale_set_draw_value (GtkScale *scale,
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gboolean draw_value);
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gboolean gtk_scale_get_draw_value (GtkScale *scale);
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void gtk_scale_set_value_pos (GtkScale *scale,
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GtkPositionType pos);
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GtkPositionType gtk_scale_get_value_pos (GtkScale *scale);
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PangoLayout * gtk_scale_get_layout (GtkScale *scale);
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void gtk_scale_get_layout_offsets (GtkScale *scale,
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gint *x,
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gint *y);
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void gtk_scale_add_mark (GtkScale *scale,
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gdouble value,
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GtkPositionType position,
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const gchar *markup);
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void gtk_scale_clear_marks (GtkScale *scale);
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/* internal API */
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void _gtk_scale_clear_layout (GtkScale *scale);
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void _gtk_scale_get_value_size (GtkScale *scale,
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gint *width,
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gint *height);
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gchar * _gtk_scale_format_value (GtkScale *scale,
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gdouble value);
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G_END_DECLS
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#endif /* __GTK_SCALE_H__ */
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