Pileus Git - ~andy/gtk/blob - gtk/gtkscrollbar.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  * Copyright (C) 2001 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  23  * file for a list of people on the GTK+ Team.  See the ChangeLog
  24  * files for a list of changes.  These files are distributed with
  25  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  26  */
  27
  28 #include "config.h"
  29 #include "gtkscrollbar.h"
  30 #include "gtkintl.h"
  31 #include "gtkprivate.h"
  32 #include "gtkalias.h"
  33
  34 static void gtk_scrollbar_style_set  (GtkWidget         *widget,
  35                                       GtkStyle          *previous);
  36
  37 G_DEFINE_ABSTRACT_TYPE (GtkScrollbar, gtk_scrollbar, GTK_TYPE_RANGE)
  38
  39 static void
  40 gtk_scrollbar_class_init (GtkScrollbarClass *class)
  41 {
  42   GtkWidgetClass *widget_class;
  43
  44   widget_class = GTK_WIDGET_CLASS (class);
  45
  46   widget_class->style_set = gtk_scrollbar_style_set;
  47
  48   gtk_widget_class_install_style_property (widget_class,
  49                                            g_param_spec_int ("min-slider-length",
  50                                                              P_("Minimum Slider Length"),
  51                                                              P_("Minimum length of scrollbar slider"),
  52                                                              0,
  53                                                              G_MAXINT,
  54                                                              21,
  55                                                              GTK_PARAM_READABLE));
  56
  57   gtk_widget_class_install_style_property (widget_class,
  58                                            g_param_spec_boolean ("fixed-slider-length",
  59                                                                  P_("Fixed slider size"),
  60                                                                  P_("Don't change slider size, just lock it to the minimum length"),
  61                                                                  FALSE,
  62
  63                                                                  GTK_PARAM_READABLE));
  64
  65   gtk_widget_class_install_style_property (widget_class,
  66                                            g_param_spec_boolean ("has-backward-stepper",
  67                                                                  P_("Backward stepper"),
  68                                                                  P_("Display the standard backward arrow button"),
  69                                                                  TRUE,
  70
  71                                                                  GTK_PARAM_READABLE));
  72
  73     gtk_widget_class_install_style_property (widget_class,
  74                                              g_param_spec_boolean ("has-forward-stepper",
  75                                                                    P_("Forward stepper"),
  76                                                                    P_("Display the standard forward arrow button"),
  77                                                                    TRUE,
  78
  79                                                                    GTK_PARAM_READABLE));
  80
  81   gtk_widget_class_install_style_property (widget_class,
  82                                            g_param_spec_boolean ("has-secondary-backward-stepper",
  83                                                                  P_("Secondary backward stepper"),
  84                                                                  P_("Display a second backward arrow button on the opposite end of the scrollbar"),
  85                                                                  FALSE,
  86
  87                                                                  GTK_PARAM_READABLE));
  88
  89     gtk_widget_class_install_style_property (widget_class,
  90                                              g_param_spec_boolean ("has-secondary-forward-stepper",
  91                                                                    P_("Secondary forward stepper"),
  92                                                                    P_("Display a second forward arrow button on the opposite end of the scrollbar"),
  93                                                                    FALSE,
  94
  95                                                                    GTK_PARAM_READABLE));
  96 }
  97
  98 static void
  99 gtk_scrollbar_init (GtkScrollbar *scrollbar)
 100 {
 101 }
 102
 103 static void
 104 gtk_scrollbar_style_set  (GtkWidget *widget,
 105                           GtkStyle  *previous)
 106 {
 107   gint slider_length;
 108   gboolean fixed_size;
 109   gboolean has_a, has_b, has_c, has_d;
 110   GtkRange *range;
 111
 112   range = GTK_RANGE (widget);
 113
 114   gtk_widget_style_get (widget,
 115                         "min-slider-length", &slider_length,
 116                         "fixed-slider-length", &fixed_size,
 117                         "has-backward-stepper", &has_a,
 118                         "has-secondary-forward-stepper", &has_b,
 119                         "has-secondary-backward-stepper", &has_c,
 120                         "has-forward-stepper", &has_d,
 121                         NULL);
 122
 123   range->min_slider_size = slider_length;
 124   range->slider_size_fixed = fixed_size;
 125
 126   range->has_stepper_a = has_a;
 127   range->has_stepper_b = has_b;
 128   range->has_stepper_c = has_c;
 129   range->has_stepper_d = has_d;
 130
 131   (* GTK_WIDGET_CLASS (gtk_scrollbar_parent_class)->style_set) (widget, previous);
 132 }
 133
 134 #define __GTK_SCROLLBAR_C__
 135 #include "gtkaliasdef.c"